• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Invention m. used in food processing systems. The purpose of the invention is to increase the reliability of the method of cleaning the saddle surfaces of a double-seated valve and the device for its implementation by eliminating the ingress of working medium into the cleaning system. The gate valve body (ShZO) and the plate valve body (TZO) are independently moved from the closed to the open position. Before opening the ShZO valve, provided with a radial seal and installed slidably in the cylindrical bore of the housing, the TZO is moved one relative to the other by a partial stroke until the saddle surfaces open. Through one of the nozzles of the housing or a channel made in the housing, the cleaning medium is formed through a leak collection chamber formed between ShZO and TZO with leakage in communication with the atmosphere to the saddle surfaces. Before opening the TZO, ShZO is moved from the original position to the TZO located in the closed position , before the separation of the chamber and the hole, and ensure the interaction of SHZ and TZO during the entire period of the open position of TZO. After it is closed, the SZO one moves in the direction of the outlet or inlet branch pipe. ShZO and TZO are moved in accordance with the specified algorithm. 2 sec. and 6 z. p. f-ly, 20 ill.
    公开号:SU1662356A3
    申请号:SU864027668
    申请日:1986-06-09
    公开日:1991-07-07
    发明作者:Мит Ханс-Отто
    申请人:Отто Тухенхаген Гмбх Унд Ко., Кг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a valve and is intended for use in food processing systems, such as in the food industry.
    The aim of the invention is to improve the tightness by eliminating the ingress of the working medium into the cleaning system.
    FIG. Figure 1 shows a valve that implements a method for cleaning the saddle surfaces of a double-seat valve, a closed position, a slit; in fig. 2 - functional table (algorithm) with a sequence of all switching operations performed by the valve; in fig. 3 - valve, the position of the interaction of two locking bodies: the disc and slide, when the gate is brought to the plate for sealing the leak collection chamber from the working medium; in fig. 4 - the same, open PO
    lying; in fig. 5 is the same, the cleaning position of the saddle surfaces when the cleaning medium is supplied through the leak collection chamber; on fng. 6 - the same, the position of simultaneous cleaning of both saddle surfaces of the valve when the cleaning fluid is supplied through a part of the housing; FIGS. 7 to 10 show variations of the valve configuration forms, the closed position, FIG. 11, a valve when the gate control device is equipped with a balanced piston; in fig. 12 - 16 - algorithms corresponding to FIG.
    shown in FIG. 2, 12, 13, 14, 15, 17.
    Fig. 1 shows a valve on which the proposed cleaning method is implemented, for example, by blowing the saddle surfaces of a double-seat valve. The double-seat valve includes a housing 1, with two shut-off members installed in it, one of which 2 is made in the form of a gate equipped with a radial seal 3, and the other 4 - in the form of a plate 5 located below under the stop member 2 and equipped
    9, 10 and 11; in fig. 17 - form options | seal 6, interacting with
    performing two locking bodies with the corresponding algorithms.
    The method of cleaning by blowing the saddle surfaces of the double-seated valve used, for example, in the food industry, is to use
    the saddle surface 7 of the housing 1. The porous body 2 — a slide with radial seal 3 is installed slidable in the cylindrical version 8 of the housing 1, which communicates its two parts 9 and 10, which are provided with responsibly inlet and outlet nozzles. Between the shut-off organs 2 and 4 (a gate and a plate), a chamber 11 for collecting leaks is formed, communicated to channel 12 with the atmosphere, and channel 13 - with a source of purifying, for example, purging medium,
    independent movement from the closed to the open position of two locking bodies - slide and disc with a control device. For this, before opening the valve, the gate valve body provided with a radial seal and slidably installed in the cylindrical bore of the valve body, connecting its two parts, equipped with inlet and outlet pipes, and the plate valve body is displaced relative to each other by the amount of partial stroke opening of the saddle surfaces, after which through one of the nozzles of the housing or a channel formed in the housing, the cleaning medium is supplied through the chamber formed between the locking bodies leak collection communicated with the atmosphere to open saddle surfaces. Before opening the disc valve, move the gate valve from the initial position to the disc valve
    An organ in the closed position, prior to the separation of the leak collection chamber and the cylindrical opening of the housing, ensures the interaction of the locking organs during the entire period of the open position of the poppet locking organ. After it is closed, the single-gate locking member alone moves in the direction of the outlet or inlet of the housing.
    45
    50
    Two locking bodies 2 and 4 (gate and plate) are installed with the possibility of independent movement from the closed to the open position, with the help of the equilibrium device, which are connected by means of coaxially mounted and directed to one side rods 14 and 15, respectively. In this case, both locking bodies can also be displaced one relative to the other by the amount S, j of their partial stroke before opening the saddle surfaces for their cleaning. Both rods 14 and 15 are inserted into the housing 16 of the control device and are equipped with independently controlled drive pistons 17 and 18, with preloaded spring 19 and 20 respectively on each side.
    The body 16 of the control device and the pistons 1 and 18 located inside it form three insulated chambers 21–23 one from the other. Chamber 21 serves to control the rod 14 of the slide valve 2, chamber 23 to control the rod 15 of the plate 4, and through chamber 22 located between the drive pistons 17 and 18 is controlled
    The displacement of the locking bodies, as required by one or the other pistons (17
    required to open and close a double-seated valve, are carried out in accordance with predetermined algorithms,
    seal 6, interacting with
    0
    5 5
    0
    five
    0
    the saddle surface 7 of the housing 1. The locking member 2 — a gate with a radial seal 3 is installed slidably in the cylindrical bore 8 of the housing 1, which has two parts 9 and 10 that are provided with inlet and outlet respectively. Between the locking bodies 2 and 4 (gate and plate), a chamber 11 for collecting leaks is formed, which is connected by channel 12 with the atmosphere, and channel 13 is connected to a source of cleaning, for example, purge medium,
    Two locking bodies 2 and 4 (gate and plate) are installed with the possibility of independent movement from the closed to the open position by means of a control device, which are connected by means of coaxially mounted and directed to one side rods 14 and 15, respectively. In this case, both locking bodies can also be displaced one relative to the other by the amount S, j of their partial stroke before opening the saddle surfaces for their cleaning. Both rods 14 and 15 are inserted into the control device body 16 and are equipped with independently controlled drive pistons 17 and 18, with preloaded spring 19 and 20 on one side, respectively.
    The body 16 of the control device and the pistons 17 and 18 located inside it form three insulated chambers 21–23 one from the other. The chamber 21 serves to control the rod 14 of the gate 2, the camera 23 to control the rod 15 of the plate 4, and through the chamber 22 placed between drive pistons 17 and 18, control is exercised
    5 both one and the other pistons (17
    and 18) by means of an inlet channel 24 formed inside the rod 15. In the chamber 23 a spring 20 is placed, in
    lush with the main. Inside the chamber 21 there is a spring 19, which is an auxiliary and is a spring travel stop for the piston rod 14 with piston 17. Each of the chambers 21 and 23 has a point for connecting the working fluid, and the connection point in the chamber 21 is labeled a At the same time, the attachment point in chamber 22 is through the inlet channel 24 - b, and in the chamber 23 there is an attachment point marked c.
    At the end of the stem 15, extending beyond the body of the control device 16, a recess 25 is made, in which the latch 26 of a travel stop is arranged, which is made in the form of a controlled locking device 27, and the connection point of the working fluid of this device is denoted by the letter
    A gap S is formed between the latch 26 and the recess 25 of the stem 15, necessary for the limited upward movement of the locking member 4 in the case of cleaning the saddle surfaces 7 of the housing 1 and the locking member 4. S3 is the distance between the driving pistons 17 and 18 in the closed position of the double-seat valve .
    FIG. 2 shows a functional table — an algorithm for all switching operations carried out to move the shut-off organs of a double-seat valve, where it is shown to which points from a to d control pressure is applied in order to ensure
    The closed position 1 shown in FIG. 1. At the same time, i.e. Whose fluid supplied through the point into the chamber 21; the control pressure is not connected with; and the value A, effective, means that pressure is supplied to the piston surface of the piston surface; if the stop member 4, the pressure in the chamber 22 is not supplied; it is located below, it is necessary to sub- mean that the blockage does not block into the cavity, for example, from the saddle surface device 27, pressure is not supplied 7 by means of pressure shocks, then with and, therefore, the blocking device - the movement of its course S is limited by ro The device, which is closed by the latch 26 of the spring blocking device, is in its original 27. Since the relative partial position when the rod 26 is placed in YO-JQ, the stroke Sj is larger, the container 25 of the rod 15. Braced position d (0) shows that for the closed position 1 the presence of the locking device 27 is not necessary.
    Others presented in the table of the connection status of the points a, c, b and
    than partial movement of stroke S2 in relation to latch 26, the medium that is under pressure in part 10 of housing 1 can be withdrawn with no pressure through chamber 11 to collect the leak and through channel 12 of the closure member 4. Thus , an increase in pressure in the collection chamber 11 is prevented from leaking.
    d, are depicted in lines 2, 3, 4.1 and 4.2. In this connection state
    MIM
    means position of call, 3
    0
    open position, 4.1 — cleaning position of valve seat surfaces, when purging medium R1 is supplied to the chamber without leakage, to collect leaks, 4. — cleaning position of saddle surfaces, valve valves, when purging medium R2 is supplied through port of part 10 of housing 1. On piston 18, force through the main spring 20. In addition to this force, an additional force acts in the same direction, which presses the locking member h, which is designed as a support plate, to the saddle surface 7. The top locking member 2 is supported through the outer rod 14 and the corresponding drive piston 17 on the auxiliary spring 19, while the spring is enclosed in a chamber using devices (not shown) and, therefore, should only accept the total weight of the locking member 2, the rod 14 and the piston 17 and the pressure of the working medium located in the inlet pipe of the part 9 of the housing 1 acting on the locking member 2 located above. If the working medium is under pressure in part 10 of housing 1, then in combination with the effective surface of the closure body 4, the seat surface 7 will be pressed only if the opening force is greater than the algebraic sum obtained from the preload force the main spring 20 and the additional force A, where the value of Pg denotes the pressure of operation5
    five
    whose fluid is supplied through the connection point c, and the value A is the effective piston surface of the driving piston 18. If the locking member 4 located below is to be lifted, for example, from the saddle surface 7 by means of blows with pressure , the movement of its stroke S is limited by the latch 26 of the locking device 27. Since the relative partial movement of the stroke Sj is more,
    than partial movement of stroke S2 in relation to latch 26, the medium that is under pressure in part 10 of housing 1 can be withdrawn with no pressure through chamber 11 to collect the leakage and through channel 12 of the closure member 4. Thus an increase in pressure in the collection chamber 11 is prevented.
    FIG. 3 valve is shown in the inlet position
    which is characterized by the fact that, prior to the opening movement of the closure member 4, the closure member 2 is brought from its initial position to the closure member 4, which is in its closed position, and is connected to it in such a way that the leak collection chamber 11 is hermetically closed. relative to the cylindrical bore 8 that surrounds it. To create such a state of the valve switching apparatus, it is necessary, from the described closed position of the double-seat valve, to adjust the connection point b. The additional force caused by adjusting the connection point c is effective as before. The locking device 27, which does not necessarily have to be in place, is controlled through its connection point d, its latch 26 has come out of the recess 25 inside the stem 15 located below. The states of adjustment by individual connection points are visible from the functional table in FIG. 2 in line d (1).
    As a result of the pressure of the working fluid above the connection point b, in the inlet channel 24 and inside the chamber 22, the drive pistons 17 and 18 expand. On the drive piston 18, on the one hand, there is a spring force 20 and an additional force Pc x A, and the other side the force P x A is flowing out of the working fluid present in chamber 22. The force P0 x A evenly acts on
    the drive piston T7 of the locking member 2 located at the top and at the same time moving it towards the tensioned and fixed spring 19 downwards so that the locking member 2 adjoins the locking member 4. At the contact point of both locking members 2 and 4, the force P ., xA, directed through the rod, located outside, so that in general the locking body 4, located below, its rod 15 and the corresponding drive piston 18 under the force Pb x A do not undergo the forces directed outward. from the tricky part It is only under the action of force P6 x A. The locking organ 4, located below, is pressed against the saddle surface 7 with a total force
    0
    five
    forces from the spring 20 and additional force R. x A. Neither from the internal, nor from another part of the housing 1, the working medium, for example, can enter the chamber 11 to collect leaks.
    FIG. 4 shows the open position 3 of the valve. The functional table in FIG. 2 in line 3 describes the corresponding states of adjustment of the connection points, where d (1).
    Under the force P x A during the entire open position 3, the locking bodies 2 and 4 remain connected to each other. Under the influence of the working fluid present in the chamber 21 and the force PO xA acting on the piston 17, the latter moves upwards to its possible end position. When this fixed auxiliary spring 19 moves, it does not exert any effect on the drive piston 17, Thanks to the forces acting in the chamber 22, and further on the adjacent pistons 17 and 18, the locking bodies 2 and 4, the rods 14 and 15 and the corresponding pistons 17th and 18th centuries. They are sewn as a single unit, which as a result of the force P x A can generally move with respect to the force of the main spring 20. Since the effective surface A facing the chamber 21 is in principle always smaller than surface A facing the chamber 22, and at the same time the working pressure
    0
    five
    five
    0
    five
    0
    five
    the fluids P Q and P a are usually the same, then the connection of the locking bodies 2 and 4 is in any case maintained at
    covering effort Р Q х А due to Р „х А pq А. For pressures Pb P, the strength of this adhesion can be further increased.
    The closing movement of the valve is carried out in reverse order. The idea of the state of the switching operation of adjusting the position of approach 2, shown in the Functional Table of Figure 2 in line 2, shows that first the locking bodies 2 and 4 in the connected position are lowered to the closed position of the locking member 4. This occurs as a result of the abolition of the regulation operation in connection point Before lowering, during lowering or after lowering (two locking bodies), an additional force can be already realized on the locking organ 4 through the connection point c.
    It is only after reaching the closed position of the locking member 4 that the locking member 2 is separated from the locking member 4 and transferred to its original position. Such separation is carried out as a result of the cancellation of the adjustment operation at the connection point b under the action of the force F {, the spring 19 or the spring travel stop. The force of adhesion of the locking bodies 2 and 4 in both cases is equal to: the adhesion force in the approach position Fk PK x A - F., the adhesion force in the open position Fk Pe x A - Pq x A
    At (rig. E, the cleaning operation of the saddle (valve) R1 is presented, and the cleaning agent R1 is supplied through the chamber 11. to collect the leakage to the saddle surface of the locking member 2. The switching apparatus can be seen from row 4.1 of the functional table on Fig. 2. The locking member 4 under the force of the spring 20 and the additional force PC xA is pressed against its saddle surface 7. Under the action of the force PQ x A, the piston 17 moves upwards by a partial stroke So, which is visible in Fig. 1 up to the stop on the piston 18. Spring 19 in this position The piston 17 does not have any further effect on the piston. As a result of the partial movement of the stroke Sj of the closing link 4, its supporting surface opens, so that the cleaning agent R1 can be supplied outside the double-seated valve through the channel 13 connected to the source of cleaning medium to the annular gap between rods 14 and 15; and a leak collection chamber 11.
    The operation of cleaning the valve while simultaneously cleaning both saddle surfaces with the use of the cleaning agent R2 coming from the part 10 of the housing 1 is shown in FIG. 6. The state of adjustment of the attachment points can be seen from row 4.2 of the functional table in FIG. 2 where
    Under the influence of the force P0 x A, the piston 17 with the locking member 2 moves up to the stop on the piston 18. As a result, the partial stroke S is increased by the distance S (Fig. 1.). With such a distance, the two locking bodies together move now to the 8th partial stroke (Fig. 1) against the latch 26 of the locking device 27. Fortunately,
    five
    0
    five
    0
    five
    0
    five
    0
    five
    as a gift, both saddle surfaces are released and can be cleaned with cleaning agent supplied from part 10 of housing 1. Then cleaning agent R2 enters the leakage chamber 11, and then flows down through the duct 12 leading down. Since the opening force P x A is designed so that it can overcome the force of the spring 20 in the full open position of the double seat valve, now in the depicted seat cleaning position a moderate excess of P x A is now received, which is perceived by the latch 26 of the locking device 27.
    FIG. Figure 7 shows a valve with a different arrangement of the locking pairs and the control member as compared with the arrangement of the lock couples and the control member in the valve shown in Fig. 1. The difference is due to the mirror image of the shut-off pairs of the double-saddle valve, as well as the location of the drive elements located in the housing 16 of the control device. A comparison of the functional table describing the states of adjustment of points a to d in the possible states of the switching apparatus 1 is shown in fig. 12 with a functional table in FIG. 2 shows that the switching logic of the embodiment in FIG. 7 is identical to the completely enable logic in | FIG. one.
    This link is also visible from the summary image in FIG. 17 - quite arrogant bottom. For the ratio of the forces on the drive pistons x 17 and 18 is really the same, if we proceed from the mirror reflection of the specified.
    FIG. 8 to 10 depict somewhat different forms of the device for carrying out the method. The locking member located at the top is designed as a supporting plate, the locking member located at the bottom is designed as a gate. The opening movement of the double seat valve is upward, since the seat surface 7 is located under the locking member at the top. In addition, the embodiments of FIG. 8-10 are different in their control device from the control device in FIG. 1 in that the auxiliary spring 19 (or spring travel stop) accommodates
    Now in the chamber 22 between the driving pistons 17 and 18. The states of controlling the connections of points a to d in all positions of the switching apparatus 1 to 4.2 are visible from the functional tables in FIG. 13 - 15. In the switching device positions (On or Off) 2 and 3, when adjusting the point b, the general switching principle is seen, which crystallized already in the described embodiments,
    In the closing position 1 of the mold of FIG. 8, it is possible to create an additional force P x A. It acts indirectly through the drive piston 18 and the auxiliary spring 19 on the drive piston 17 of the upper closure member, designed as a support plate. It can be seen from the functional table in FIG. 13 in line 1 under the adjustment point c (number 1 after the slash), then it is easy to carry out such an operation so that under the overall conditions shown in the drawing, this additional force in the position of approach 2 (compare line 2 of fig. 13) save only if the annular cross section, effective in chamber 22 on the drive piston 17, is less than the annular cross section A, effective in chamber 23, since otherwise the lifting force that appears on the drive piston 18, directed upwards, cannot be created by
    FIG. 9 shows an embodiment of the embodiment in FIG. 8. At the same time, the locking device 27 is made more realistic than in FIG. 1 and 8. Balls which engage in the recess 25 of the rod 15 and control through the piston 28 serve as a latch 26. The control process is simplified, since the working fluid leaving the connection points b and d is now branching out at the same time mouth
    The device 27 and the chamber 22 between the driven pistons 17 and 18. The apparent difference with the form of execution in FIG. 8 is that the actuating piston 17 can be hermetically moved on its rod 14 in the direction of the locking member 2, while it acts in the opposite direction 1 with hermetic closure of it through the collar 29, the Main spring 20 is
    0
    five
    0
    -
    5 Q
    35
    40
    45
    , 0
    55
    in the stepped casing 30, so that the subsequent forward movement of the closure member 4, -filled as a gate, against the efforts of the auxiliary spring 19 is not made. In the chamber 22 between the drive pistons 17 and 18. There is a stroke limiter 31 located on the housing 16 of the control device, which helps to limit the partial movement of the stroke 3 and S of the drive pistons 17 and 18. The chamber 22 can be connected with the environment by channel 24 , made in the rod 15, or the channel 32 (Fig. 10), which passes through the body 16 of the control device, h and through (stop) the stroke limiter 31, In contrast to the control valve, shown in FIG. 8, to realize the open position of the modified form of FIG. 9 provides only regulation by camera 22 (row 3 of the functional table in FIG. 14). With this adjustment, the drive piston 18 moves upwards. Due to this movement, the locking member 2 and the corresponding stem 14 also move upwards. The drive piston 18 cannot follow this movement, since it can move relative to its rod 14 under the action of the forces of the working fluid in chamber 22 and abuts the lower part of the housing 16 of the control device. All other states of regulation in other positions of the switching apparatus remain unchanged compared with those states of regulation which are indicated in the functional table in FIG. 13.
    In the embodiment of FIG. 10, the closure body 2, made in the form of a gate, in part 10 of the housing 1 has a pressure balancing piston 33 which is hermetically sealed, which has the same diameter as the cylindrical bore 8. As a result, the compressive force exerted by the valve is significantly compensated. the liquid in part 10 of the housing 1 to the closure member h. The need for a locking device 27 may disappear, since neither the closing position 1 nor the valve cleaning positions 4.1 or 4.2 need to stop the rod 15 (according to the table in Fig. 15).
    FIG. 11 shows an embodiment of a valve in which the stop valve
    one
    The organ 4 located at the bottom is made in the form of a support plate and is pressed from the bottom to the saddle surface 7, and the locking body 2 located at the top has the shape of a gate. Regarding the control device, the same conclusions are valid as for the control devices of the variants in FIG. 1 and 7, while the mirror axis passes again horizontally through the chamber 22. With respect to this embodiment, the conclusions made with respect to the embodiment in FIG. 8 are valid. The comparison of the functional table containing all the states of the switching device from 1 to 4.2, in fig. 16 with a functional table in FIG. 13 confirms this.
    FIG. 17 - four principally possible configurations of locking bodies are shown in combination with the corresponding functional tables. The principle of functioning and the principle of action are common in all four principal configurations of the locking organs. The issue is resolved regarding the connection of the locking bodies 2 and 4 in the position of approach 2 and in the open position 3 as a result of divergence of the drive pistons 14 and 15, thanks to which the tight fitting of the double-seat valve is ensured. In all these cases,
    2
    3
    that as in the position of call 2. so
    3
    and in the open position 3, the chamber is controlled between the driving pistons 14 and 15 ().
    In addition, simultaneous cleaning of the saddle surfaces of both closures is carried out. Since all four configurations of the closing link enable hermetic incorporation with unlimited possibility of cleaning both surfaces at the same time, and one closing link made in the form of a gate and in contact with the product, the choice of an embodiment depends on special application conditions.
    权利要求:
    Claims (8)
    [1]
    Invention Formula
    four
    four
    five
    cylindrical hole of the hull clap1. The method of cleaning the saddle surfaces, which connects two of its parts, is supplied with inlet and outlet pipes of a double-seat valve, used, for example, in the food industry, including independent crossings, and the other - in the form of a plate, while between the shut-off organs the open position with the help of the control device of the two shut-off organs, the slide valve and the disc, with the slide valve body equipped with the radial seal and installed with the possibility of The valve has a hole in the cylindrical opening of the valve body, which connects two of its parts, equipped with inlet and outlet pipes, and the disc valve body is moved relative to each other by the amount of partial stroke before opening the saddle surfaces, and then through one of the housing pipes or inlet channel t the cleaning medium through the leak collection chamber formed between the shut-off organs, communicating with the atmosphere, to the open saddle surfaces, characterized in that, in order to increase reliability, The opening of the disc closure member moves the slide gate from the initial position to the disc closure member, which is in the closed position, before the leakage chamber and the cylindrical opening of the housing are separated, and the closure member interacts during the whole open position of the disc valve and after it is closed, the gate valve is retracted and moves in the direction of the body outlet or inlet pipe.
    [2]
    2. A method according to claim 1, characterized in that the movements of the locking bodies necessary for opening and closing the double-seat valve are carried out in accordance with a predetermined algorithm.
    [3]
    3.Double-seated valve with cleaned saddle surfaces, used, for example, in the food industry, containing two shut-off organs installed with the possibility of independent movement from the closed to the open position by means of a control device, one of the shut-off members made in the form of a gate, provided with a radial seal and installed with the possibility of sliding in
    Kami, and the other - in the form of a plate, while between the locking bodies of the
    A leak collection chamber communicated with the atmosphere and a source of cleaning medium, and the locking bodies are mounted to move relative to each other by the amount of a partial stroke before opening the saddle surfaces to clean them, and both locking bodies are connected to the control device by means of coaxially mounted and rods directed to one side, characterized in that, in order to increase reliability, both rods are inserted into the body of the guide element and are equipped with independently controlled drives. shek E, spring-loaded at least on one side and with the housing forming a control device and with each other three chambers, wherein one of the rods and / or the piston is provided with a respective stroke limiter.
    [4]
    4. Valve according to claim 3, characterized in that the drive piston
    i
    1B
    ten
    12
    r
    0
    mounted on the rod with the possibility of axial movement relative to it.
    [5]
    5. The valve on the PP. 3 and 4, characterized in that the travel stop is made in the form of a controlled locking device.
    [6]
    6.Klapan Popp. 3 and 4, characterized in that a piston stroke limiter is installed in the chamber between the driving pistons.
    [7]
    7.Klapan Popp. Zi4, characterized in that the chamber between the driving pistons is in communication with the atmosphere by a channel made in the piston stroke limiter.
    [8]
    8. The valve on the PP. 3, 4, 6 and 7, characterized in that the chamber between the driving pistons is in communication with the atmosphere, a channel made in the stem of the locking member.
    25
    FIG. 2
    4
    ON CTv t-o
    U) ul
    (
    sixteen
    but
    Yu
    FIG L
    Rig.8
    28
    in HI
    5 S U .13
    15Pig .B

    sixteen
    25
    Sht
       V I If p-J10
    33
    Rig. ten
    52 tS o
    CD
    Si
    类似技术:
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    同族专利:
    公开号 | 公开日
    AU5844486A|1986-12-18|
    JPS6246069A|1987-02-27|
    ZA864227B|1987-01-28|
    DK272086D0|1986-06-10|
    EP0208126B1|1990-03-07|
    ES8706247A1|1987-05-16|
    US4757834A|1988-07-19|
    CA1295982C|1992-02-18|
    ES555956A0|1987-05-16|
    DK163372C|1992-07-13|
    DK272086A|1986-12-12|
    EP0205627A1|1986-12-30|
    EP0208126A1|1987-01-14|
    DK163372B|1992-02-24|
    DE3669379D1|1990-04-12|
    AU589640B2|1989-10-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2623039C3|1976-05-22|1980-11-13|Leonhard Schleicher Suedmo-Armaturenfabrik Gmbh, 7081 Riesbuerg|Stop valve with leak protection|
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    GB2011583B|1977-11-19|1982-03-31|Holstein & Kappert Maschf|Valve arrangement|
    SE424357B|1979-11-20|1982-07-12|Hakan Jeppsson|VALVE WITH DOUBLE SEALS|
    DE3005329C2|1980-02-13|1985-08-22|Leonhard Schleicher Südmo-Armaturenfabrik GmbH, 7081 Riesbürg|Stop valve with leak protection|
    DE3108778C2|1980-07-22|1986-10-16|Otto Tuchenhagen GmbH & Co KG, 2059 Büchen|Process for cleaning both seat surfaces of a double seat valve and device for carrying out the process|
    DE3030989C2|1980-08-16|1987-10-22|Holstein Und Kappert Gmbh, 4600 Dortmund, De|
    DE3174609D1|1981-03-24|1986-06-19|Holstein & Kappert Gmbh|Double-seat valve with leak control|
    DE3133273C2|1981-08-22|1985-10-17|Otto Tuchenhagen GmbH & Co KG, 2059 Büchen|Cleanable double seat valve with leak control|
    DE3211692A1|1982-03-30|1983-10-06|Holstein & Kappert Maschf|METHOD FOR CLEANING CAVES IN DOUBLE SEAT VALVES|
    DE3242947C2|1982-11-20|1987-12-03|Holstein Und Kappert Gmbh, 4600 Dortmund, De|
    US4617955A|1982-11-29|1986-10-21|Bm Digiflow A/S|Stop or switch valve for fluids|
    DE3466051D1|1984-09-12|1987-10-15|Lavrids Knudsen Maskinfabrik A|Double seat valve|
    US4605035A|1984-09-14|1986-08-12|Lavrids Knudsen Maskinefabrik A/S|Double seat valve|DE3701027C2|1987-01-16|1989-07-20|Hans Otto Dipl.-Ing. 2058 Schnakenbek De Mieth|
    DE3835363C2|1988-01-20|1994-05-26|Mieth Hans Otto|Method and device for controlling the medium entry into at least one leakage space of a valve device|
    AU623376B2|1988-01-20|1992-05-14|Hans-Otto Mieth|Multiway valve with isolated sealing cavities|
    DE4035017C1|1990-11-03|1992-01-09|Otto Tuchenhagen Gmbh & Co. Kg, 2059 Buechen, De|
    DE4118874C2|1991-06-07|1995-02-16|Tuchenhagen Otto Gmbh|Method for cleaning a leak-free switching double-seat valve and valve device for carrying out the method|
    DK194391D0|1991-11-29|1991-11-29|Haakon Jeppsson|DOUBLE SEED VALVE|
    DE4203724C2|1992-02-08|1995-06-29|Tuchenhagen Otto Gmbh|Device for cleaning a double seat valve|
    US5275201A|1992-07-23|1994-01-04|Tri-Clover, Inc.|Manifold valve assembly with removable valve seat|
    US5226449A|1992-11-06|1993-07-13|Tri-Clover, Inc.|Manifolds and compound valves with removable valve assemblies|
    US5232023A|1992-12-22|1993-08-03|Tri-Clover, Inc.|Manifold valve assemblies|
    DK0646741T3|1993-09-21|1996-12-09|Apv Rosista Gmbh|Leak-free switching double valve device|
    US5441079A|1994-04-22|1995-08-15|Tri-Clover, Inc.|Manifold valve assemblies|
    US5465748A|1994-05-24|1995-11-14|Millipore Corporation|Sanitizable slider diaphragm valve|
    US5469880A|1994-12-16|1995-11-28|Tetra Laval Holdings & Finance, S.C.|Manifold valve assemblies with cleaning solution supply|
    JP2772248B2|1995-02-15|1998-07-02|東洋エンジニアリング株式会社|Automatic piping connection device|
    JP2921654B2|1995-04-27|1999-07-19|サーパス工業株式会社|Fluid transfer coupling device|
    US5699825A|1995-11-14|1997-12-23|United Dominion Industries, Inc.|Double seat flow control valve|
    DE19548860C1|1995-12-27|1997-01-16|Tetra Laval Holdings & Finance|Shut-off valve|
    EP0819876B1|1996-07-15|2002-12-11|Toyo Stainless Steel Industries Co., Ltd.|Double sealed valve|
    DE19652215C2|1996-12-16|2000-05-18|Inventec Ges Fuer Tech Innovat|Process for cleaning a leakage-free shut-off valve and shut-off valve for carrying out the process|
    GB9700950D0|1997-01-17|1997-03-05|Hygienic Pigging Systems Limit|Valve arrangements|
    EP0968382B1|1997-03-18|2003-05-21|TUCHENHAGEN GmbH|Double seat valve with cleanable seats|
    DE19720566C1|1997-05-16|1999-02-11|Apv Rosista Gmbh|Double seat valve|
    US6117317A|1997-05-23|2000-09-12|Millipore Investment Holdings Limited|Chromatographic column and valve with movable valve sleeve|
    DE19842922A1|1998-09-18|2000-03-23|Rieger Gmbh & Co Kg Geb|Valve, especially double seat valve|
    GB2344543B|1998-12-10|2002-11-27|Millipore Corp|Chromatography column system and method of packing a chromatography system|
    DE102004031476B4|2004-06-30|2006-03-23|Tuchenhagen Gmbh|Balancer for reservoirs in piping system has springs that are deformable by fluid acting upon walls of compensating piston|
    NZ533910A|2004-07-05|2007-02-23|Tyco Flow Control Pacific Pty|Valve status monitoring|
    AU2006312793A1|2005-11-12|2007-05-18|Tuchenhagen Gmbh|Double seat valve|
    DE102005057103A1|2005-11-25|2007-05-31|Südmo Holding GmbH|Aseptic valve device for separation of hostile media in food industry, has valve disk with drainage section that extends to plane such that opening cross-section of drainage openings is larger than cross-section of connection opening|
    DE102006046442A1†|2006-09-25|2008-03-27|Gebr. Rieger Gmbh & Co. Kg|Double-seat valve device|
    FR2956181B1|2010-02-09|2012-02-24|Defontaine|MULTIVOY VALVE DEVICE FOR CIRCULATING FLUIDS|
    CN101792104B|2010-04-10|2012-07-04|杭州中亚机械有限公司|Switching valve for charging and discharging food|
    DE102010030300A1|2010-06-21|2011-12-22|Krones Aktiengesellschaft|Double seat valve and sealing of a double seat valve|
    US8579249B2|2010-11-04|2013-11-12|Fisher Controls International Llc|Biasing device for use with actuators of fluid valves|
    CN103672022B|2013-12-02|2016-04-06|东正科技有限公司|Two prevention valve seat|
    KR101601429B1|2014-06-10|2016-03-09|현대자동차주식회사|Thereof controlling method and apparatus for controlling air-intake flowed in engine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP85107177A|EP0205627A1|1985-06-11|1985-06-11|Process for obtaining a leakless double-seat valve with washing of the seats, and device for carrying out the process|
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