• 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:
    1. Verfahren und Vorrichtung zum Trocknen und Sterili­sieren von Gut 2.1. Wegen der geringen thermischen Resistenz lassen sich viele Gewebe zum Teil nur schlecht trocknen und in vielen Fällen nur unter Materialschädigung sterilisie­ren.Es stellt sich die Aufgabe, bei schonendem Verfahren Ge­webe zu trocknen und zu entkeimen, ohne umweltschädli­che Gase oder Lösungen zu verwenden. 2.2 Die Aufgabe wird durch ein Verfahren gelöst, bei dem das Gut bei geringer Temperatur getrocknet (30 bis 70 °C) und anschließend im gleichen Behandlungs­raum auf 125 bis 135 °C erhitzt wird, wobei eine effektive Sterilisation des Gutes erfolgt. Dabei steht ein geschlossener innerer Luftkreislauf über einen Kondensations- und Kühlaggregaten mit der Außenluft energiemäßig in Kontakt. 2.3. Diese Trocken- und Sterilisatonsgeräte können in Kliniken, Arztpraxen, Labors, Hotels, Sanatorien, Frisörläden, aber auch in Privathaushalten benutzt wer­den, um Gewebe trocken und hygienisch einwandfrei zu erhalten. 3. Zeichnung vergleiche Fig. 2
    公开号:SU1709926A3
    申请号:SU874203401
    申请日:1987-09-25
    公开日:1992-01-30
    发明作者:Бальтес Ханс
    申请人:Khans Baltes；
    IPC主号:
    专利说明:

    The invention relates to a method of drying and sterilizing materials, mainly linen, highly sensitive fabrics, clean wool, bed linen, pillows, wool blankets, leather and any other items, such as cutlery, medical instruments, hairbrushes, scissors, fleece, knives, razor devices in the drying cabinet.
    The aim of the invention is to increase productivity and reduce energy costs.
    The method of drying and sterilizing materials is implemented in a drying cabinet.
    FIG. 1 graphically shows the process of drying and sterilizing materials: in FIG. 2 - drying and sterilizing
    cupboard, side view; in fig. 3 - cooling and condensation compartment, top view; in fig. 4 - drying and sterilization cabinet, section; in fig. 5 - the same: in FIG. 6 condenser cooler, preferred embodiment.
    The drying and sterilization cabinet for the implementation of the method of drying and sterilizing materials comprises an internal channel 1 of the cabinet bounded by side walls 22 with openings 4, external channels 2 and 3 for supplying and discharging air, respectively, a recuperative condenser-cooler 7, radial blowers 5 and 13, the first of which is located inside the internal circulation circuit, and the second is located in the outer heating element 6, condensate collector 8, drain hole 4. The cabinet contains external 6oij; oBbie walls 9, rear wall 16, 12 cover 11, internal tion 10, all these elements and walls 21 are heat insulated. Condenser cooler 7 contains an inlet 19 for atmospheric air, panels 18 and an outlet 20. The cabinet is also equipped with an electric motor 14 for a blower 5.
    All units, i.e. radial blowers 5 and 13, the condenser-cooler 7 and the condensate collector 8 are located in the base 15.
    It is possible to place one part or all devices in the upper part of the cabinet.
    The method of drying and sterilizing materials in the cabinet is carried out in the following way.
    In the cabinet, when the materials are placed in a stationary state, the drying, sterilization and cooling operations with air circulating in a closed loop (internal circulation circuit) are sequentially performed, and this air is cooled in the regenerative condenser-cooler with outside atmospheric air, circulating in the external open circuit. The method of drying and sterilization consists in successively carrying out drying, sterile and cooling operations, the first of which is carried out by moving the air around a closed loop and blowing materials with air at a temperature of 45-60 ° C and then drying it with atmospheric moisture. air, sterilization operation is performed by holding materials in air at a temperature of 125-130 ° C for 30120 minutes.
    The method is carried out as follows.
    The internal channel 1 of the cabinet is formed by internal side walls 21 with openings 4 through which air is supplied to the internal channel and the air is withdrawn from it. Through the outer duct 2 for supplying air to the inner duct 1 of the cabinet, air enters the inner duct 1 and leaves the inner space through the apertures 4 so that later through the outer duct 3 to exhaust air into the condenser-cooler 7 into which the air flow is sucked by a radial with a blower .5 for the internal circulation circuit and then passes by the heating element 6 in order to lock the circulation circuit of the internal system. Below the condenser-cooler 7
    a condensate collector B is located, both of which are interconnected by means of a drain hole 17.
    In order to provide good thermal insulation characteristics, the inner walls H1, the outer side walls 9, the back wall 16, the door 12, the lid 11 and the inner base 10 are thermally insulated.
    In order to adequately cool the condenser-cooler 7 inside the external open circuit of the circulation, atmospheric air is drawn in through the condenser-cooler 7,
    taken by the radial blower 13 for the external circulation circuit and again derived from the cabinet with the help of the blower 13. As can be seen from FIG. 6t, the external cold air is drawn in through the inlet 1; 9 into the condenser-cooler 7, is led past the panels 18 and leaves the condenser-cooler 7 through the outlet 20. Since the condenser-cooler 7 operates in countercurrent flow,
    cold air (1 st air heats up as it passes past Panel 18.
    In order to prevent excessive heating of the motor 14, which drives the radial blower
    5 for the internal circulation circuit, this motor 14 is located outside the internal circulation circuit.
    The Blissan method allows the drying and sterilization
    effective way; while minimizing drying and sterilization times at reasonable costs, avoiding the release of environmentally friendly gaseous or water-soluble substances,
    it is efficient and easy to maintain drying and sterilization, including by persons who have not passed; special training, and to produce a supply of air, which in the process of the substance and during sterilization entered
    in contact with parts, linen, in a closed circulation circuit, as a result of which the negative influence on the environment is excluded.
    In order to prove, in fact
    the sterilization carried out various tests. To this end, contaminated material has been loaded into various models of the drying and sterilizing cabinet according to the invention. The bacteria Haphelocacus aureus, Pseudomonas aeroglnosa were used as microorganisms. Bacillus subtlius u Cancllda alblcans. In this case we are talking about microorganisms, which are widespread and which, up to
    Bacillus subtills, npeAcraenflrat is a problem for hospitals, since these microorganisms are difficult to destroy because of their resistance to antibiotics. These test microorganisms were grown in a solid medium and transferred to a high concentration in tissue. At the same time, the test microorganisms were mixed, on the one hand, with the whole medium and, on the other hand, with blood. This confusion, i.e. The whole medium and blood usually creates a protective area for microorganisms 1 that allows them to withstand experimental environmental conditions. In a cabinet made in accordance with the invention, the contaminated material is exposed to a temperature of 125130 ° C. At the end, the material was sterilized. The conditions were treated with sterile culture medium, whole medium. The incubation period is 8 days at 37 ° C, so that even one surviving microorganism is sufficient to prove the distinct growth of microorganisms in the medium. The result of these series of tests shows that an effective, sterilization time of 30 minutes is sufficient to destroy all microorganisms that do not form endogenous spores. For successful sterilization also of these mycorrganisms; forming endogenous spores, 120 minutes of sterilization is enough. For this reason, a reliable sterilization is ensured with the aid of the device according to the invention, if at temperatures between 125 and 135 ° C the material to be sterilized is exposed to this temperature for more than 120 minutes.
    When using the drying and sterilizing tissue, it is necessary to exclude the entry of microorganisms, which are on the fabric to be dried, into the environment. This problem must be solved on the basis of a closed internal circulation.
    Typically, fabrics should not be exposed to temperatures that range from 125-130 ° C. Work at such temperatures is possible, since various conditions are fulfilled. Firstly, the phase of the substance proceeds at a preferred temperature of 40-65 ° G, and secondly, during phase processing at a temperature of 121; 130 °, the fabric is not subjected to mechanical stress.
    Thus, it can be carried out as a sparing drying and sterilization of blended fabrics, cotton fabrics, pure wool, pure silk, pure synthetics and
    pure viscose. In addition, for example, leather, shoes made of leather or also down-filled clothes may be subjected to the same treatment, which greatly contributes to hygiene in these areas. During the drying process, a very gentle method is used, since the evaporation method is not used, and only water is evaporated, i.e. Drying is carried out at a temperature below the boiling point of water and at normal pressure. The linen is processed in a drying and sterilization cabinet in a hanging form, as a result of which, unlike the case of using drum dryers, there is no abrasion, kinks, wear of linen. There is no slacking, deformation, color change and shrinkage of the underwear, so that a longer service life is finally achieved.
    After drying, the laundry has an already smoothed appearance, as a result of which there is no need for further processing, which also leads to lower costs.
    Unlike drum dryers, this device requires a smaller floor space. Since it is no longer comparable with a drum dryer mechanic, installation is also associated with fewer problems. As far as it concerns exclusively
    blowers, eliminating the acoustic load transmitted, for example, through walls or the floor.
    Since there is no fire hazard when using the device, it can be operated without supervision. Since the device is in compliance; the invention reduces to known elements of known technology, a high degree of reliability is achieved, so it should be considered with great interest from both the hospitals and hotels sectors. For hospitals and clinics, this drying and sterilization cabinet allows sterilization of working clothes, medical instruments, cutlery and crockery, as well as towels, bed linen and clothes. At the same time, there is no need to refer to expensive devices or chemical substances that provide only disinfection and therefore have an extremely negative impact on the environment, and technically efficient sterilization of materials is carried out. Such a device should be of considerable interest to hospitals, since part of the infectious diseases is spread by hospital personnel and so-called hispital infections may occur. The destruction of these microorganisms with the help of drugs or chemical materials is very problematic, since these microorganisms are particularly resistant to them. These microorganisms are sensitive to sterilization using high temperatures.
    In the same way, the invention sterilizes hairbrushes, scissors, brushes, knives and razors in a barber shop.
    FIG. 1 depicts a characteristic process. The laundry comes at room temperature into the drying room and the sterilization cabinet and is dried for 1.5 hours. Meanwhile, the temperature gradually rises to about 65 ° C. Moisture is removed from the internal circulation circuit using a condensation and cooling unit. If the air humidity is about 65%, the device switches, causing the internal air flow to move more slowly, and the external circulation circuit is completely turned off. As a result, the internal temperature rises to approximately 125-130 ° within 15 minutes.
    Only then is the effective sterilization phase carried out. This phase lasts about an hour. During this time, the temperature inside the cabinet is maintained unchanged by the control circuit, which consists of temperature sensors in contact with the interior, a setpoint sensor, and a heating element that is turned off. As a result of the air circulation carried out during sterilization, when using a heating element that is located outside the inner walls, however, inside the internal air flow, a corrective response is provided to minor temperature fluctuations in the internal space.
    After sterilization, the sterile material is cooled. This process is achieved due to the fact that the internal air
    the flow is re-directed at full power and the external cooling is switched on again. As a result, for a short period of time, the temperature drops to approximately 90-100 ° C. The linen and the internal parts of the cabinet are heated after this cooling phase to approximately 30-40 ° C, so that danger to the operating personnel is completely excluded. After this process, the drying and sterilization cabinet is again fully ready for operation.,
    The inner walls of the drying and sterilization cabinet consist of a heat insulating material. In this case, the material should be insensitive to changes in air humidity. As applied to the use in the drying and sterilization rooms, it is necessary that the inner walls do not interact due to the rapid transition from high temperature, high humidity to extreme dryness.
    In addition, the heat insulating material eliminates yellowing at the points of contact between the textile material and the inner walls of the cabinet or holder. In the case of some sensitive textile materials, it is not possible to completely eliminate their yellowing when in contact with metal surfaces and metal walls.
    Such a heat insulating material also contributes to the fact that the living personnel are not at risk of getting burns if they are accidentally touched on the inner surfaces of the drying and sterilization cabinet without your hands when you open the cabinet. In addition, this insulating material is distinguished by the significant advantage that, due to limited heat absorption and extremely high thermal insulation properties, the heating phase and cooling phase can be carried out quickly and at low power consumption.
    The bacteriological examination of the disinfectant effect was carried out as follows.
    Test microbes are attached to three different places (top, middle, bottom) on the material to be disinfected and subjected to the test for the first time in a fully filled state and another time with only a quarter of normal filling. The following microbes were used to manufacture test objects to control the disinfectant effect:
    Staph.aureusATS C 6538
    R. aeruglnosaATSS 15442
    Candida afblcans ATCC 10231 B.subtlllsATCC 6633
    All test organisms were grown in three technological steps on gas-peptone-soy flour-peptone-agar (CSA) or Sabourand-glucose-agar and washed with a solution of pelvis-peptone-soy flour-peptone (CSL). 1 ml of this flush was mixed once with 10 ml of C81 and once with 10 ml of blood.
    and put on 1 cm of large flax scraps, which after that were dried at 37 ° C and packed in filter paper.
    The number of microbes in the contaminated suspension.
    3.7x10 ° / ml
    Stdph. aureus 4.2x1
    P. aeruglnosa 1.
    Candida albicans
    These BM / ta test objects were sterilized for 30.0 and 120 min at 120-125 C. The tests were carried out three times. After disinfection, thermostatic incubation (incubation) of micro carriers in plant broth (CSL-broth) was performed for 8 days at 37 ° C.
    The results are summarized 8 table.
    Exposure time of 120 minutes is required to destroy the SubtlHs-cnop vapor-resistant degree. 30 minutes is enough for other disputes.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    The method of drying and sterilizing materials, mainly linen, highly sensitive fabrics, bed linen, pillows, down clothes and leather, cutlery, medical instruments, hairbrushes, scissors, brushes, knives, razors, which consists of sterilization, drying and cooling, of which is carried out by heating for 30-120 minutes. and the second by blowing air with the subsequent drying of the latter by condensing vyygi from it, characterized in that. that, in order to increase productivity and reduce energy consumption, drying, sterilization and cooling processes are carried out when materials are not in a suitable state, sterilizations are carried out by exposure to air after drying is completed and before cooling, air is dried in a drying process in a closed loop, condensation of the air dried after drying is carried out by cooling it with atmospheric air in a recuperative condenser-cooler, and I support the air temperature during the drying and sterilization respectively 45-60 ° C and 125-130 ° C.
    Note. + + Digging without micro. - without growth - destruction of microbial
    150
    t
    50
    sh
    VOCd & g
    IH
    Joc
    / at
    (Rig.1 Schig.2
    Shg
    Fig5
    Figb
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    同族专利:
    公开号 | 公开日
    JPS6395056A|1988-04-26|
    EP0262451B1|1991-04-24|
    AT62817T|1991-05-15|
    EP0262451A3|1988-08-10|
    CN87106682A|1988-04-06|
    DE3632820C2|1990-06-28|
    DE3769566D1|1991-05-29|
    CN1013732B|1991-09-04|
    US4869872A|1989-09-26|
    EP0262451A2|1988-04-06|
    DE3632820A1|1988-04-07|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3632820A|DE3632820C2|1986-09-26|1986-09-26|
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