专利摘要:
The method which aims at preventing condensation phenomena on tools (5) heated by the work and traversed by a cooling medium relates particularly to synthetic material working machines. In order to avoid condensation of humidity on cooled tools (5), a dry air veil is created by direct blowing to the tools (5), thereby making possible a further reduction of the temperature of the cooling water of the water-cooled tools (5), and therefore the reduction of the working cycles. The condensation point at the surface of the tools is detected by a regulation device and the cooling water temperature is consequently regulated.
公开号:SU1598883A3
申请号:SU864027317
申请日:1986-04-04
公开日:1990-10-07
发明作者:Аманн Эммо
申请人:Готтфрид Аманн Унд Зон Гмбх Унд Ко (Фирма);
IPC主号:
专利说明:

The invention relates to air brushing technique and can be used for air cooling of tools of plastic processing machines.
The aim of the invention is to lower the dew point of the cooling tool of air processing plastic machines.
Figure 1 shows a device for dehumidifying the air; look around; 2 is a schematic diagram of a device for dehumidifying air; Fig. 3 shows one of the options for arranging an air drying device; 4 is an additional drier, cross section; figure 5 - rotary valve additional dehumidifier; on
(fig.b is a schematic diagram of the cooling of the instrument by plastics processing; drilling machines with control elements.
I A device for dehumidification of air contains (Fig. 1) two stages of air treatment arranged sequentially in duct 1 along the air path and a fan 2 placed between the air treatment steps, the first step being made in the form of a dehumidifier 3, and the second stage is an additional one. , filled with solid absorbent material 5, which is divided into sectors 6 evenly distributed in cross section (Fig. 4). In each sector 6 additional dryer 4 is installed electric heating element 7.
Additional about master 4 has
. A rotary valve 9 installed at its outlet 8 (FIG. 3) with the possibility of overlapping part of the sectors 6 and communicated through the outlet 10 and the air
ten
50
five
0
five
0
in the form of osuimtel-evaporator chiller (not shown).
The bypass channel 15 is connected to the duct 1 at POM011SH mixing chamber 17 (figure 2).
A filter 18 is installed in front of the drier 3 along the air flow in the air duct 1, and a condensate trap 19 below the drier 3:
The device for dehumidifying air may be arranged in a common mobile housing 20 mounted on wheels 21.
The tool 12 of plastic processing machines of their machines has channels 22 (Fig. 6) connected to the supply and
discharge pipe 23 and 24 I coolant, on which
An adjustable valve 25 with an actuator 26 is installed, and a measuring device 27 connected to the valve 25 on the supply line 23.
Drained air stream 28 (in FIG. 6) is conventionally shown in lines.
A sensor 29 measuring the temperature and relative humidity of the ambient air is mounted on the opposite side of the instrument 28 with respect to air flow, and directly on the instrument 12 in the zone of its highest temperatures a temperature sensor 30.
The sensor 29 is connected to the processor 31, which in turn is connected in parallel with the sensor 30 to the power switch. check to the central control point 32.
The central control point 32 via control unit 33 is adjustable to the drive mechanism 26; valve 25. Device for air control
the air distributor 11 with the consumer -45 works in the following way.
tool 12 plastioobrabatyvak; p1dkh machines. The air distributor 11 has output shaped slots 13 with interchangeable nozzles 14.
The nozzles 14 of the pro (|) or slotted slits 13 of the distributor 11 can be mounted with the possibility of their radial movement (Fig. 1).
The additional dryer 4 can be equipped with a bypass channel 15 connected to the duct 1 with an adjustable damper 16 "
The first stage of air treatment (Osurp.tel 3) can be performed
50
55
The humid air through the filter enters the inlet of the dehumanizer and is pre-drained by fan 2 and supplied to the dry driver 4. In addition to the drier 4, which works according to the principle, the final deflection of the processed air, which is then delivered to the blowing chamber 17 and the air It goes to Instruction plastics processing hundred
In the dryer 3, the drainage takes place as a result of
works in the following way.
The moist air through the filter 18 enters the inlet of the degrader 3, undergoes preliminary drying, and then the fan 2 is supplied to the additional dryer 4. In the additional dryer 4 operating according to the absorption principle, the final deflation of the treated air is passed, which is then through the mixing chamber 17 and an air diffuser It is fed to the tool of 12 plastic processing machines.
In the dryer 3, the air is dried as a result of its drying below the dew point temperature with removal of the condensate formed by the condensate collector 19. The use of the bypass channel 15 (load) of the additional dryer 4) is determined by the humidity of the air entering the dryer 3 for air treatment .
When using the bypass channel 15 dried air with its necessary parameters is obtained in the mixing chamber 17.
In the period of regeneration of the additional dryer 4, the rotary valve 9 blocks, for example, two sectors 6 of the dryer 4 (Fig. 4), and the flow of air being dried during this passes through the four sectors 6 of the dryer 4 that remain open.
The absorbent material 5 in the overlapped sectors 6 is heated by means of electric heating elements 7, and the moisture contained in the absorbent material 5 is vaporized and discharged to the outside.
The temperature of the tool 12 during the operation of plastic processing machines is maintained at a level higher than the dew point temperature of the ambient air, which prevents the formation of condensate on the surface of the tool 12.
Having blown the tool 12 with a stream of dry air contributes to the formation around the tool 12 of an air medium with a reduced dew point temperature, which, in turn, makes it possible to cool the tool 12 through the feed line 23 more intensively and to a lower temperature. cooling liquid.
Using a .29 sensor to measure temperature and relative humidity allows you to determine the actual. For each specific period of time, the dew point temperature of the air surrounding the instrument.
The corresponding signals from temperature sensor 29, and relative humidity and temperature sensor 30 are sent to processor 31.
. From the processor 31, the corresponding signal from the condition of maintaining the outer surface temperature of the instrument is 1598883
0
five
At the temperature of 12 the dew point of the ambient air through the control unit 33 is supplied to the drive mechanism 26 of the valve. : 25. The position of the adjustable valve 25 is switched and a corresponding change in the flow rate of the cooling liquid entering the tool 12.
The use of the measuring device 27 makes it possible to constantly monitor the initial temperature of the cooling fluid and to use, if necessary, recirculation of the coolant (the supply fluid using the valve 25,
Formula
the invention
201. A device for drying air flowing around a tool of plastic processing machines, containing two stages of air treatment in series in an air duct along the air course and a fan placed between the air treatment steps, the first stage being made as a dehumidifier and the second is filled with absorbent material and 30 communicates through the outlet with the consumer, characterized in that, in order to reduce the dew point of the cooling air, the second stage of air treatment is designed as an additional A solid dehumidifier filled with solid absorbing material and divided into sectors that are uniformly distributed in the transverse scientific research institute, in each of which is hygiene. - Q electric heater elements are fully installed, and the additional auger is equipped with block part of the sector, and the outlet is communicated with
by means of an air distributor having a weekend, shaped slots with interchangeable nozzles.
0 2, The device according to Claim 1, which means that the nozzles of the profiled slots of the air distributor are installed with the possibility of their radial movement.
5 3. The device according to PP. 1 and 2, o t - in that the additional dryer is equipped with a bypass channel connected to the duct with an adjustable damper.
4, the Device in PP. 1-3, characterized in that the first stage of air treatment is performed
ig. /
/
P
in the form of oopstetel-evaporator MaitmHbi refrigeration.
ten
L
/five/
Figg
Figm
Fig.Z
FIG. five
权利要求:
Claims (1)
[1]
Claim
1. A device for draining air flowing around a tool of plastic processing machines, comprising two stages of air treatment sequentially located in the duct along the air and placed between the steps of air treatment is led out.
The temperature of the tool 12 during the operation of plastic processing machines is maintained at a level exceeding the temperature of the dew point of the surrounding air, which prevents the formation of condensation on the outer surface of the tool 12.
Blowing the tool 12 with a stream of dried air promotes the formation of an air environment around the tool 12 with a lower dew point temperature, which, in turn, allows for more intensive and lower temperature cooling of the tool 12 by the coolant supplied through the supply pipe 23.
Using the .29 sensor for measuring temperature and relative humidity allows you to determine the actual dew point temperature of the air surrounding the instrument for each specific time period.
Corresponding signals from the temperature sensor 29, and the relative humidity and temperature sensor 30 are supplied to the processor 31.
From the processor 31, the corresponding signal is from the condition of maintaining the temperature of the outer surface of the instrument fan, the first stage being made in the form of a dehumidifier, and the second is filled with absorbent material and 30 is communicated through the outlet pipe to the consumer, characterized in that, in order to lower the dew point of the cooling air, the second air treatment step is formed in the form of an additional dehydrator filled with a solid absorbent material and separated on a uniformly distributed transversely s.echsnii sectors, for Each of them has additionally installed electric heating elements, moreover, the additional dryer is equipped with a rotary damper installed at its outlet with the possibility of blocking part of the sectors45 'holes, and the outlet pipe is communicated with the consumer by means of an air distributor having output, profiled slots with replaceable nozzles.
5Q 2. The device according to claim 1, characterized in that the nozzles of the profiled slots of the air distributor are installed with the possibility of their radial movement.
55 ' 3 · The device according to paragraphs. 1 and 2, characterized in that the additional dehumidifier is equipped with a bypass channel with an adjustable damper connected to the duct.
4. The device according to paragraphs. 1-3, in the form of a desiccant-evaporator chilled by the fact that the first machine.
air treatment stage 10
Figure 1
Fig.Z
类似技术:
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同族专利:
公开号 | 公开日
ES8700136A1|1986-10-16|
ES545925A0|1986-10-16|
WO1986001144A1|1986-02-27|
US4803787A|1989-02-14|
EP0191835B1|1989-11-02|
DK156986D0|1986-04-07|
DE3573996D1|1989-12-07|
PT80915A|1985-09-01|
AU4771585A|1986-03-07|
AT47687T|1989-11-15|
KR860700227A|1986-08-01|
EP0191835A1|1986-08-27|
PT80915B|1987-08-19|
KR900004838B1|1990-07-08|
BR8506870A|1986-12-09|
DK156986A|1986-04-07|
IN164723B|1989-05-20|
引用文献:
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CN106472617A|2015-09-01|2017-03-08|上海勤辉食品机械股份有限公司|A kind of circulating air oven|
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
AT0256184A|AT381272B|1984-08-07|1984-08-07|CONTROL ARRANGEMENT FOR THE TEMPERATURE OF A PLASTIC PROCESSING TOOL FLOWED FROM A COOLING MEDIUM|
AT0256284A|AT381901B|1984-08-07|1984-08-07|DEVICE FOR PREVENTING CONDENSATION ON TOOLS FLOWED FROM A COOLING MEDIUM|
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