CN114413546A - Intelligent environment protection system for low-temperature operation clean room - Google Patents
Intelligent environment protection system for low-temperature operation clean room Download PDFInfo
- Publication number
- CN114413546A CN114413546A CN202210208328.7A CN202210208328A CN114413546A CN 114413546 A CN114413546 A CN 114413546A CN 202210208328 A CN202210208328 A CN 202210208328A CN 114413546 A CN114413546 A CN 114413546A
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- Prior art keywords
- air
- pipe
- air inlet
- clean room
- clean
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Links
- 238000005057 refrigeration Methods 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 238000004378 air conditioning Methods 0.000 claims description 12
- 230000007613 environmental effect Effects 0.000 claims description 2
- 238000010257 thawing Methods 0.000 description 18
- 238000001704 evaporation Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007791 dehumidification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229960000074 biopharmaceutical Drugs 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D13/00—Stationary devices, e.g. cold-rooms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/006—General constructional features for mounting refrigerating machinery components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an intelligent environment protection system for a low-temperature operation clean room, which comprises an air inlet pipe, flow dividing pipes, an air supply pipe and an air return pipe, wherein one end of the air inlet pipe is respectively communicated with one ends of the two flow dividing pipes in parallel, the other ends of the two flow dividing pipes are respectively communicated with the air supply pipe in parallel, and the air supply pipe is communicated with a clean cold storage; the air inlet pipe is provided with a fresh air inlet; the other end of the air inlet pipe is communicated with the air return pipe, and the other end of the air return pipe is communicated with the clean refrigeration house; the air inlet pipe is provided with a fresh air inlet; each shunt pipe is provided with a refrigerating device, and the inlet of each shunt pipe is provided with a valve; the air supply pipe is provided with a fan which is used for pumping air in the air supply pipe into the clean refrigerator.
Description
Technical Field
The invention relates to the technical field of clean room environment guarantee, in particular to an intelligent low-temperature operation clean room environment guarantee system.
Background
The low temperature clean room reaches the clean effect of certain grade under the design standard of freezer, especially to the bio-pharmaceuticals trade, and clean freezer has its special requirement, and first the freezer has cleanliness factor and humiture requirement, and refrigerating system security requires highly, and refrigeration control system automation requires highly, and needs centralized control.
Traditional low temperature clean room directly adopts refrigeration air conditioning unit, directly sends into cold wind through supply-air duct indoor, and low temperature clean room will appear the phenomenon of frosting after live time period, and this is also common phenomenon in the freezer is used, because freezer in use, air cooler will work under the evaporating temperature who is less than zero degree. In this case, a frost is formed in the clean room, and its thickness increases with time. The accumulated frost reduces the heat transfer coefficient and also impedes the circulation of air, which in turn causes a reduction in evaporator performance. Therefore, these air coolers must be periodically defrosted to maintain performance at a desired level.
The traditional defrosting mode adopted at present comprises methods such as water defrosting, natural defrosting, electric heating defrosting, hot air defrosting, manual defrosting and the like after frosting.
Because the traditional low-temperature clean room control system cannot realize the operation functions of centralized control of air supply dehumidification and defrosting, after the system runs for a period of time, the traditional defrosting modes such as manual defrosting, natural defrosting and water defrosting are adopted, but the treatment measures are not enough. For example, the method of defrosting water, in which oil in the evaporator tubes cannot be drained and the water consumption is large, is limited to the air cooler with the water drain tube. The natural defrost method stops the flow of refrigerant to the evaporator and keeps the fan running. This approach is only used for indoor temperatures above 0. This results in a long defrosting time. The manual defrosting method is that an operator can directly hold a cleaning tool to directly remove frost on the surface of the evaporator. It is generally only suitable for defrosting of the wall drain pipes and the top drain pipes of frozen goods refrigerators.
Disclosure of Invention
The invention aims to provide an intelligent environment protection system for a low-temperature operation clean room, which aims to solve the technical problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent environment protection system for a low-temperature operation clean room comprises an air inlet pipe, two shunt pipes, an air supply pipe and a return air pipe, wherein one end of the air inlet pipe is respectively communicated with one ends of the two shunt pipes in parallel, the other ends of the two shunt pipes are respectively communicated with the air supply pipe in parallel, and the air supply pipe is communicated with a clean cold storage; the air inlet pipe is provided with a fresh air inlet; the other end of the air inlet pipe is communicated with the air return pipe, and the other end of the air return pipe is communicated with the clean refrigeration house; the air inlet pipe is provided with a fresh air inlet; each shunt pipe is provided with a refrigerating device, and the inlet of each shunt pipe is provided with a valve; the air supply pipe is provided with a fan which is used for pumping air in the air supply pipe into the clean refrigerator.
In some embodiments, the refrigeration device includes an air compressor for refrigerating an air conditioning unit for exchanging heat with the bypass pipe, and an air conditioning unit.
In some embodiments, an electric proportional control valve is arranged at the fresh air inlet.
In some embodiments, the valve is an electrically-operated proportional regulating valve.
In some embodiments, a temperature sensor is arranged in the clean cold storage and connected with the fan.
Drawings
FIG. 1 is a schematic view of an intelligent low temperature operation clean room environmental protection system of the present invention;
illustration of the drawings: the air conditioner comprises an air compressor, an air conditioning unit, a fan, a clean cold storage, a return air pipe, an air inlet pipe, a flow dividing pipe and an electric proportional control valve, wherein the air compressor is 1-2-3-4-5-6-7-8-one-step valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
On the contrary, this application is intended to cover any alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the application as defined by the appended claims. Furthermore, in the following detailed description of the present application, certain specific details are set forth in order to provide a better understanding of the present application. It will be apparent to one skilled in the art that the present application may be practiced without these specific details.
An intelligent low-temperature operation clean room environment protection system according to an embodiment of the present application will be described in detail with reference to fig. 1. It is to be noted that the following examples are only for explaining the present application and do not constitute a limitation to the present application.
In an embodiment of the present application, as shown in fig. 1, the intelligent low-temperature operation clean room environment protection system may include an air inlet pipe 6, two branch pipes 7, an air supply pipe and a return air pipe 5, wherein one end of the air inlet pipe 6 is respectively communicated with one end of each of the two branch pipes 7 in parallel, the other ends of the two branch pipes 7 are respectively communicated with the air supply pipe in parallel, and the air supply pipe is communicated with the clean cold storage 4; the air inlet pipe 6 is provided with a fresh air inlet, and the fresh air inlet is provided with an electric proportional control valve 8. The other end of the air inlet pipe 6 is communicated with the air return pipe 5, and the other end of the air return pipe 5 is communicated with the clean refrigeration house 4; a fresh air inlet is arranged on the air inlet pipe 6; each shunt tube 7 is provided with a refrigerating device, and the inlet of each shunt tube 7 is provided with a valve; the air supply pipe is provided with a fan 3 for pumping air in the air supply pipe into the clean refrigeration house 4.
In some embodiments, the refrigeration device comprises an air compressor 1 and an air conditioning unit 2, wherein the air compressor 1 is used for refrigerating the air conditioning unit 2, and the air conditioning unit 2 is used for exchanging heat with the shunt pipe 7. The valve is an electric proportional control valve 8. Be equipped with temperature sensor in the clean freezer 4, temperature sensor with fan 3 is connected.
The intelligent environment protection system for low temperature operation clean room can realize the automatic temperature control and the centralized control treatment of automatic defrosting and dehumidifying under the specific requirement of low temperature clean room.
The intelligent environment protection system for the low-temperature operation clean room is controlled by a set of direct evaporation type air handler, but two sets of outdoor compressor condensing units provide cold sources, the system is provided with a double-machine operation mode, two sets of direct evaporation type cooling systems are guaranteed to alternately operate, and one set of direct evaporation type cooling system operates one set of heat pump defrosting.
The technological process of intelligence low temperature operation toilet is exactly that in the new trend sends into clean freezer 4 after refrigeration air conditioning unit cooling dehumidification processing, the temperature sensor collection temperature signal of installation in the clean freezer 4 transmits to the PLC controller, according to temperature variation, the amount of wind of automatic adjustment forced draught blower 3. In order to avoid the change of the air supply quantity caused by the blockage of the medium-high efficiency filter screen, the system can be provided with an air supply pipe pressure detection device for carrying out frequency conversion control on the fan 3. The system ensures that one set of refrigerating device works to always ensure the temperature in the clean refrigeration house 4, then frost on the surface of the evaporator of the other set of refrigerating device which does not work naturally melts, and then the two sets of refrigerating devices are alternately carried out, so that the refrigerating effect of the clean refrigeration house 4 cannot be delayed due to the frost on the evaporator of the refrigerating device.
The beneficial effects that may be brought by the intelligent low-temperature operation clean room environment security system disclosed by the application include but are not limited to:
1. the system is provided with a cold source by two sets of outdoor compressor condensing units, and is provided with a double-machine operation mode, so that two sets of direct evaporation type cooling systems are ensured to alternately operate, and one set of direct evaporation type cooling system operates and one set of defrosting system operates.
2. The air return system is arranged, so that low-temperature wet air in the low-temperature clean room can be returned to the air conditioning unit for cyclic utilization.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. An intelligent environment protection system for a low-temperature operation clean room is characterized by comprising an air inlet pipe, a flow dividing pipe, an air supply pipe and an air return pipe,
one end of the air inlet pipe is respectively communicated with one end of each of the two shunt pipes in parallel, the other ends of the two shunt pipes are respectively communicated with the air supply pipe in parallel, and the air supply pipe is communicated with the clean refrigeration house; the air inlet pipe is provided with a fresh air inlet;
the other end of the air inlet pipe is communicated with the air return pipe, and the other end of the air return pipe is communicated with the clean refrigeration house; the air inlet pipe is provided with a fresh air inlet;
each shunt pipe is provided with a refrigerating device, and the inlet of each shunt pipe is provided with a valve;
the air supply pipe is provided with a fan which is used for pumping air in the air supply pipe into the clean refrigerator.
2. The intelligent low-temperature operation clean room environment protection system according to claim 1, wherein the refrigerating device comprises an air compressor and an air conditioning unit, the air compressor is used for refrigerating the air conditioning unit, and the air conditioning unit is used for exchanging heat with the shunt pipe.
3. The environmental protection system for the intelligent low-temperature operation clean room of claim 1, wherein an electric proportional control valve is arranged at the fresh air inlet.
4. The intelligent low-temperature operation clean room environment protection system according to claim 1, wherein the valve is an electric proportional control valve.
5. The environment protection system for the intelligent low-temperature operation clean room according to claim 1, wherein a temperature sensor is arranged in the clean cold storage, and the temperature sensor is connected with the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210208328.7A CN114413546A (en) | 2022-03-03 | 2022-03-03 | Intelligent environment protection system for low-temperature operation clean room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210208328.7A CN114413546A (en) | 2022-03-03 | 2022-03-03 | Intelligent environment protection system for low-temperature operation clean room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114413546A true CN114413546A (en) | 2022-04-29 |
Family
ID=81263003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210208328.7A Pending CN114413546A (en) | 2022-03-03 | 2022-03-03 | Intelligent environment protection system for low-temperature operation clean room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114413546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777241A (en) * | 2022-05-25 | 2022-07-22 | 四川科特空调净化有限责任公司 | Fluid energy recycling control system for clean room |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002081691A (en) * | 2000-09-04 | 2002-03-22 | Takasago Thermal Eng Co Ltd | Apparatus and method for air cleaning and air conditioning |
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| CN110006118A (en) * | 2019-03-29 | 2019-07-12 | 中国飞机强度研究所 | A kind of large-scale synthesis climatizer air treatment system |
| CN110131804A (en) * | 2019-06-17 | 2019-08-16 | 广东石油化工学院 | A kind of double refrigeration system cooling and dehumidifying units |
| KR20210047725A (en) * | 2019-10-22 | 2021-04-30 | 한국생산기술연구원 | Electric driven clean room system |
| CN113701262A (en) * | 2021-09-01 | 2021-11-26 | 美埃(中国)环境科技股份有限公司 | Clean room sterilization system and sterilization method |
| CN215723770U (en) * | 2021-09-14 | 2022-02-01 | 国药集团重庆医药设计院有限公司 | Crushing apparatus and air exhaust and supplement linkage system in clean room |
| CN217357743U (en) * | 2022-03-03 | 2022-09-02 | 四川科特空调净化有限责任公司 | Intelligent environment protection system for low-temperature operation clean room |
-
2022
- 2022-03-03 CN CN202210208328.7A patent/CN114413546A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002081691A (en) * | 2000-09-04 | 2002-03-22 | Takasago Thermal Eng Co Ltd | Apparatus and method for air cleaning and air conditioning |
| CN101922765A (en) * | 2009-12-31 | 2010-12-22 | 周云正 | Clean room with non-thermal plasma air disinfection purifier |
| CN109312941A (en) * | 2016-06-27 | 2019-02-05 | 能源效率顾问集团有限公司 | Depurating room control system and method |
| US10071177B1 (en) * | 2016-08-15 | 2018-09-11 | Synergy Med Global Design Solutions, Llc | Hospital and operating room designs and sterilization methods |
| CN106642504A (en) * | 2016-12-15 | 2017-05-10 | 合肥优亿科机电科技有限公司 | Biosafety asepsis room with monitoring function |
| CN207922429U (en) * | 2017-09-20 | 2018-09-28 | 南通诺亚居环保科技有限公司 | Two-way dehumidifying VMC |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114777241A (en) * | 2022-05-25 | 2022-07-22 | 四川科特空调净化有限责任公司 | Fluid energy recycling control system for clean room |
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