CN104296276A - Environment room working condition adjusting system - Google Patents
Environment room working condition adjusting system Download PDFInfo
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- CN104296276A CN104296276A CN201410440415.0A CN201410440415A CN104296276A CN 104296276 A CN104296276 A CN 104296276A CN 201410440415 A CN201410440415 A CN 201410440415A CN 104296276 A CN104296276 A CN 104296276A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an environment room working condition adjusting system which comprises an air conditioner cabinet, a cooling device, a secondary refrigerant freezing circulating pipeline and a secondary refrigerant thermocycling pipeline. The system can work at a temperature lowering state, a working condition stable state, a defrosting state, an after-defrosting recovery state and a temperature raising state. By switching control of the freezing circulating pipeline, the thermocycling pipeline and an air conditioner electric air brake, a proper cold source and a proper heat source can be provided for a freezing surface air cooler and a cold and heat surface air cooler of the air conditioner cabinet, and the stability of environment room temperature and humidity working conditions is guaranteed. Surface air cooler automatic defrosting under the low-temperature working conditions is achieved, environment room working condition stability during the defrosting process can be guaranteed, and long-time operation of the low-temperature working conditions is achieved. The cooling device of the system is provided with a heat recovery unit, waste heat recovery is used for controlling secondary refrigerant temperature, and energy-saving operation is achieved.
Description
Technical field
The invention belongs to refrigeration and air-conditioning technical field, relate to a kind of temperature and humidity regulating working conditions system of environmental chamber inside.
Background technology
Adopting the indirect type of cooling to carry out air cooling-down dehumidifying is the method that filed of air conditioning is commonly used, the indirect type of cooling adopts the cold-producing medium of refrigerating medium and refrigerating plant to carry out heat exchange cooling by evaporimeter, air again with lower the temperature after refrigerating medium carry out heat exchange cooling and dehumidifying by surface cooler.When air is normal temperature, multiplex water is as refrigerating medium, then needs to adopt low temperature refrigerating medium, as ethylene glycol solution etc. close to zero degree and sub-zero temperature.
The temperature of refrigerating medium is easy to regulate, suitable refrigerant temperature can control the temperature and humidity of air easily, avoid sub-cooled or excessively dehumidify, thus decrease the demand compensating heating or compensate humidification, therefore for having for the chamber temperature of constant temperature and humidity demand and psychrometric condition control, the indirect type of cooling has energy-conservation and operating mode and holds manageable advantage.
Environmental chamber majority has close to zero degree and following worst cold case, especially low temperature and high relative humidity operating mode, because the water vapour in air is at surface cooler surface condensation Cheng Shuan, environmental chamber runs a period of time rear surface cooling device surface and will be blocked by frost, cause operating mode out of control, so need regularly defrosting.Defrost process stops due to the cooling of surface cooler, and chamber temperature can be caused to rise.Run for needing prolonged cold and keep the environmental chamber of humiture stable conditions, then needing also can continue cooling to keep stable conditions in defrost process.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of refrigerating medium that adopts as the environmental chamber regulating working conditions system of low-temperature receiver and thermal source, environmentally room temperature and moisture requirement can control refrigerating medium state, this system can possess cooling, dehumidifying, heat up and humidification capability, and surface cooler defrosting can be carried out in worst cold case process and keep the stable conditions of defrost process, possess the long playing ability of worst cold case.
Solve the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
A kind of environmental chamber regulating working conditions system, is characterized in that: described environmental chamber regulating working conditions system comprises air-conditioning cabinet, refrigerating plant, refrigerating medium freeze cycle pipeline and refrigerating medium thermal-cold circulating pipeline;
Described air-conditioning cabinet is provided with freezing surface cooler, cold and hot surface cooler, electronic air lock, blower fan and humidifier, described electronic air lock is provided with blade and lower blade, lower blade is positioned at the air inlet of freezing surface cooler, and blade is between the air outlet and the air inlet of cold and hot surface cooler of freezing surface cooler;
Described refrigerating plant comprises condensation heat recoverer, evaporimeter, compressor, condenser and expansion valve; Evaporimeter is for cooling refrigerating medium, and condensation heat recoverer is for reclaiming the condensation waste heat of compressor discharge;
Described refrigerating medium freeze cycle pipeline comprises three-way control valve, chilled water pump and freezing three-way cut-off valve, the outlet of described freezing surface cooler is divided into two-way, one tunnel is communicated with the first import of three-way control valve, another road is communicated with the refrigerating medium import of condensation heat recoverer, second import of the refrigerating medium outlet three-way control valve of described condensation heat recoverer, the outlet of three-way control valve is communicated with the import of freezing three-way cut-off valve by chilled water pump, the refrigerating medium import of the first outlet evaporimeter of freezing three-way cut-off valve, the refrigerating medium outlet of described evaporimeter, second outlet of freezing three-way cut-off valve is connected with the import of freezing surface cooler,
Described thermal-cold circulating pipeline comprises heater, cold and hot three-way cut-off valve and hot and cold water pump, the outlet of described cold and hot surface cooler is communicated with the import of cold and hot three-way cut-off valve by hot and cold water pump, the refrigerating medium import of the first outlet evaporimeter of cold and hot three-way cut-off valve, second outlet of the refrigerating medium outlet of evaporimeter, cold and hot three-way cut-off valve is connected with the import of heater, the import of the cold and hot surface cooler of outlet of heater.
Wherein, described system can be operated in following state:
Cooling state, described blower fan, refrigerating plant, chilled water pump and hot and cold water pump all run in this condition, the blade contract fully of described electronic air lock, lower blade full open, described heater quits work, first import and the full conducting of outlet, second import of described three-way control valve are closed, the import of described freezing three-way cut-off valve and first exports conducting, the second port closing, and the import of described cold and hot three-way cut-off valve and first exports conducting, the second port closing;
Soaking condition, described blower fan, hot and cold water pump and heater all run in this condition, described refrigerating plant and chilled water pump stop, the blade full open of described electronic air lock, lower blade contract fully, the import of described cold and hot three-way cut-off valve and second exports conducting, the first port closing, and the power output of described heater regulates according to adding heat needed for environmental chamber;
Stable conditions state, described air-conditioning cabinet in this condition, refrigerating plant, chilled water pump, hot and cold water pump all runs, the required relative humidity of the blade aperture of described electronic air lock and lower blade aperture foundation environmental chamber regulates, first import of described three-way control valve and the aperture ratio of the second import regulate by environmental chamber institute chilling requirement, the import of described freezing three-way cut-off valve and the first outlet conducting, second port closing, the import of described cold and hot three-way cut-off valve and the second port opening, first port closing, the power output of described heater regulates according to environmental chamber institute calorific requirement, the power output of described humidifier (1e) regulates according to adding moisture needed for environmental chamber.
Described system can also be operated in following state:
Defrost state, described air-conditioning cabinet, refrigerating plant, chilled water pump and hot and cold water pump all run in this condition, the blade full open of described electronic air lock, lower blade contract fully, described heater stops, second import and the full conducting of outlet, first import of described three-way control valve are closed, the import of described freezing three-way cut-off valve and second exports conducting, the first port closing, and the import of described cold and hot three-way cut-off valve and first exports conducting, the second port closing.
Return to form after defrosting, described air-conditioning cabinet, refrigerating plant, chilled water pump and hot and cold water pump all run in this condition, the blade full open of described electronic air lock, lower blade contract fully, described heater quits work, first import and the full conducting of outlet, second import of described three-way control valve are closed, the import of described freezing three-way cut-off valve and first exports conducting, the second port closing, and the import of described cold and hot three-way cut-off valve and first exports conducting, the second port closing.
A work condition state changing method for above-mentioned environmental chamber regulating working conditions system, comprises the following steps:
When environmental chamber needs to remain on worst cold case, first described environmental chamber regulating working conditions system enters cooling state, to make environmental chamber close to Low Temperature Target temperature, then stable conditions state is entered, to make the humiture stable conditions of environmental chamber at target temperature and target humidity, finally enter cyclic process, this cyclic process comprises: when making freezing surface cooler tie full frost at environmental chamber regulating working conditions system held low-temperature condition, enter defrost state, return to form enter defrosting after freezing surface cooler completes defrosting after, return to form after defrosting at the refrigerating medium in freeze cycle pipeline and reenter stable conditions state after completing cooling, thus under making environmental chamber continue to remain on worst cold case,
When environmental chamber needs to remain on normal temperature or worst hot case, first described environmental chamber regulating working conditions system enters intensification or cooling state, to make environmental chamber close to target temperature, then enters stable conditions state.
Compared with prior art, the present invention has following beneficial effect:
The first, environmental chamber regulating working conditions system of the present invention, has set up condensation heat recovery device in refrigerating plant, and the condensation waste heat utilizing compressor to discharge regulates refrigerant temperature, regulates the cold size being supplied to environmental chamber, achieves the energy-saving run of system;
Second, environmental chamber regulating working conditions system of the present invention, switched by refrigerating medium freeze cycle under defrosting operating condition, achieve recovery compressor condensation waste heat heating refrigerating medium and defrost for freezing surface cooler, more more energy-conservation than the mode such as electric heated defrosting, water defrosting of routine and convenient;
3rd, environmental chamber regulating working conditions system of the present invention, is switched by refrigerating medium cold cycling at worst cold case, refrigerating medium cold cycling is switching to for cold state, there is provided cold by cold and hot surface cooler, achieve the not interrupt delivery of defrost process cold, ensure that the stable conditions of defrost process.Meanwhile, also make the evaporimeter cold of refrigerating plant can be taken away by refrigerating medium, ensure that refrigerating plant can maintain and run and need not shut down;
4th, environmental chamber regulating working conditions system of the present invention, the room that can control environment returns to form and periodically switches after stable conditions state, defrost state and defrosting, and the long-term stability achieved under environmental chamber worst cold case is run;
5th, environmental chamber regulating working conditions system of the present invention, be provided with electronic air lock, can close in freezing surface cooler defrost process, avoid cold air to flow through freezing surface cooler reduce defrosting effect and cause the heat of refrigerating medium to enter air, ensure that again air flows through cold and hot surface cooler and lowers the temperature to air simultaneously; Return to form after the frost is removed after the refrigerating medium of freeze cycle also can be allowed first to cool and open air lock again, avoid the waste heat entered environment room of the rear refrigerating medium of defrosting;
6th, environmental chamber regulating working conditions system of the present invention, can in the electronic air lock aperture of stable conditions status adjustment, by regulating the air mass flow by freezing surface cooler, thus the enthalpy difference value after regulating air to flow through freezing surface cooler, cooling capacity needed for controlling with adaptation condition and the ratio of dehumidifying effect, avoid supercooling or cross dehumidifying, also achieving energy-conservation while improve operating conditions performance;
7th, environmental chamber regulating working conditions system of the present invention can be operated in cooling state, soaking condition and stable conditions state, thus the humiture operating mode of the room that controled environment by the cold and heat source combination of freezing surface cooler and cold and hot surface cooler.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is the system diagram of chamber temperature regulating system of the present invention;
Fig. 2 is the schematic diagram of chamber temperature regulating system of the present invention under cooling state;
Fig. 3 is the schematic diagram of chamber temperature regulating system of the present invention under soaking condition;
Fig. 4 is the schematic diagram of chamber temperature regulating system of the present invention under stable conditions state;
Fig. 5 is the schematic diagram of chamber temperature regulating system of the present invention under defrost state;
Fig. 6 is the schematic diagram under chamber temperature regulating system of the present invention returns to form after the frost is removed.
Detailed description of the invention
As shown in Figure 1, environmental chamber regulating working conditions system of the present invention comprises air-conditioning cabinet 1, refrigerating plant 2, refrigerating medium freeze cycle pipeline and refrigerating medium thermal-cold circulating pipeline.
Air-conditioning cabinet 1 is provided with freezing surface cooler 1a, cold and hot surface cooler 1b, electronic air lock 1c, blower fan 1d and humidifier 1e, electronic air lock 1c is provided with blade and lower blade, lower blade is positioned at the air inlet of freezing surface cooler 1a, blade between the air outlet and the air inlet of cold and hot surface cooler 1b of freezing surface cooler 1a, between the air outlet that humidifier 1e is arranged on cold and hot surface cooler 1b and blower fan 1d.
Refrigerating plant 2 comprises condensation heat recoverer 2a, evaporimeter 2b, compressor 2c, condenser 2d and expansion valve 2e; Evaporimeter 2b is for cooling refrigerating medium, the condensation waste heat that condensation heat recoverer 2a discharges for reclaiming compressor 2c, and realize refrigerant temperature adjustment with this condensation waste heat heating refrigerating medium, the refrigerant outlet of condensation heat recoverer 2a is communicated with the import of condenser 2d, the outlet of condenser 2d is communicated with the refrigerant inlet of evaporimeter 2b by expansion valve 2e, the refrigerant outlet of evaporimeter 2b is communicated with the air entry of compressor 2c, and the exhaust outlet of compressor 2c is communicated with the refrigerant inlet of condensation heat recoverer 2a.
Refrigerating medium freeze cycle pipeline comprises three-way control valve 11, chilled water pump 12 and freezing three-way cut-off valve 13, the outlet of freezing surface cooler 1a is divided into two-way, one tunnel is communicated with the first import a of three-way control valve 11, another road is communicated with the refrigerating medium import of condensation heat recoverer 2a, second import b of the refrigerating medium outlet three-way control valve 11 of condensation heat recoverer 2a, the outlet ab of three-way control valve 11 is communicated with the import AB1 of freezing three-way cut-off valve 13 by chilled water pump 12, first outlet A1 of freezing three-way cut-off valve 13 is communicated with the refrigerating medium import of evaporimeter 2b, the refrigerating medium outlet of evaporimeter 2b, second outlet B1 of freezing three-way cut-off valve 13 is connected with the import of freezing surface cooler 1a.
Thermal-cold circulating pipeline comprises heater 21, cold and hot three-way cut-off valve 22 and hot and cold water pump 23, the outlet of cold and hot surface cooler 1b is communicated with the import AB2 of cold and hot three-way cut-off valve 22 by hot and cold water pump 23, first outlet A2 of cold and hot three-way cut-off valve 22 is communicated with the refrigerating medium import of evaporimeter 2b, the refrigerating medium outlet of evaporimeter 2b, the second outlet B2 of cold and hot three-way cut-off valve 22 are connected with the import of heater 21, the import of the cold and hot surface cooler 1b of outlet of heater 21.
Environmental chamber regulating working conditions system of the present invention, return to form down after can being operated in cooling state, soaking condition, stable conditions state, defrost state and defrosting, detailed description is as follows:
As the cooling state of Fig. 2, blower fan 1d, refrigerating plant 2, chilled water pump 12 and hot and cold water pump 23 all run in this condition, the blade contract fully of electronic air lock 1c, lower blade full open, heater 21 quits work, first import a and the full conducting of outlet ab, the second import b of three-way control valve 11 close, the import AB1 of freezing three-way cut-off valve 13 and first outlet A1 conducting, the second outlet B1 close, and the import AB2 of cold and hot three-way cut-off valve 22 and first outlet A2 conducting, the second outlet B2 close.
Thus, environmental chamber regulating working conditions system enters refrigerating medium that cooling state can make to be exported by the outlet of freezing surface cooler 1a and inputs evaporimeter 2b by import AB1 and the first outlet A1 of the first import a of three-way control valve 11 and outlet ab, chilled water pump 12, freezing three-way cut-off valve 13 first successively, then be back to the import of freezing surface cooler 1a after carrying out heat exchange cooling in evaporimeter 2b again, achieve the cooling of freezing surface cooler; Simultaneously, make the refrigerating medium that the outlet of cold and hot surface cooler 1b exports, first successively evaporimeter 2b is inputted by import AB2 and the first outlet A2 of hot and cold water pump 23, cold and hot three-way cut-off valve 22, then be back to the import of cold and hot surface cooler 1b after carrying out heat exchange cooling in evaporimeter 2b again by the heater 21 not carrying out heating, achieve the cooling of cold and hot surface cooler.
Thus, the air that freezing surface cooler 1a and cold and hot surface cooler 1b is input air-conditioning cabinet 1 provides low-temperature receiver, that is: the air entering air-conditioning cabinet 1 can be lowered the temperature via freezing surface cooler 1a and cold and hot surface cooler 1b simultaneously, thus blower fan 1d output cold wind is lowered the temperature to environmental chamber.
As the soaking condition of Fig. 3, blower fan 1d, hot and cold water pump 23 and heater 21 all run in this condition, refrigerating plant 2 and chilled water pump 12 stop, the blade full open of electronic air lock 1c, lower blade contract fully, the import AB2 of cold and hot three-way cut-off valve 22 and second outlet B2 conducting, the first outlet A2 close, and the power output of heater 21 regulates according to environmental chamber institute calorific requirement.
Thus, environmental chamber regulating working conditions system enters the refrigerating medium that soaking condition can make the outlet of cold and hot surface cooler 1b export, first successively heater 21 is inputted by import AB2 and the second outlet B2 of hot and cold water pump 23, cold and hot three-way cut-off valve 22, and after heater 21 heat temperature raising, be back to the import of cold and hot surface cooler 1b, achieve the heat supply of cold and hot surface cooler, wherein by the power output of control heater 21 and the heat of adjustable supply environment room.
Thus, under environmental chamber soaking condition, freezing surface cooler 1a does not work, cold and hot surface cooler 1b provides thermal source for inputting the air of air-conditioning cabinet 1, that is: the cold and hot surface cooler 1b that outside air enters air-conditioning cabinet 1 heats up, thus blower fan 1d exports hot blast carries out regulation and control intensification to environmental chamber.
As the stable conditions state of Fig. 4, air-conditioning cabinet 1 in this condition, refrigerating plant 2, chilled water pump 12, hot and cold water pump 23, heater 21 all runs, the blade aperture of electronic air lock 1c and lower blade aperture regulate according to relative humidity needed for environmental chamber, first import a of three-way control valve 11 and the aperture ratio of the second import b regulate by environmental chamber institute chilling requirement, the import AB1 of freezing three-way cut-off valve 13 and first outlet A1 conducting, second outlet B1 closes, the import AB2 of cold and hot three-way cut-off valve 22 and second outlet B2 opens, first outlet A2 closes, the power output of heater 21 regulates according to environmental chamber institute calorific requirement, the power output of humidifier 1e regulates according to adding moisture needed for environmental chamber.
Thus, environmental chamber regulating working conditions system enters stable conditions state and the refrigerating medium exported by the outlet of freezing surface cooler 1a can be made first to be split into two-way, one tunnel directly inputs the first import a of three-way control valve 11, another road input condensation heat recoverer 2a also carries out the second import b inputting three-way control valve 11 after heat exchange heats up wherein, export from the outlet ab of three-way control valve 11 after this two-way refrigerating medium confluxes in three-way control valve 11, then, refrigerating medium after confluxing is successively by chilled water pump 12, the import AB1 of freezing three-way cut-off valve 13 and first outlet A1 inputs evaporimeter 2b, then the import of freezing surface cooler 1a is back to after carrying out heat exchange cooling in evaporimeter 2b again, the cold being supplied to environmental chamber can be regulated by the first import a of three-way control valve 11 and the aperture ratio of the second import b, and, make the refrigerating medium that the outlet of cold and hot surface cooler 1b exports, first successively heater 21 is inputted by import AB2 and the second outlet B2 of hot and cold water pump 23, cold and hot three-way cut-off valve 22, and after heater 21 heat temperature raising, be back to the import of cold and hot surface cooler 1b, wherein by power output and the adjustable heat being supplied to environmental chamber of control heater 21.
Thus, under environmental chamber stable conditions state, freezing surface cooler 1a is that the air of input air-conditioning cabinet 1 provides low-temperature receiver, cold and hot surface cooler 1b to provide thermal source for inputting the air of air-conditioning cabinet 1, that is: by the heat of the cold and thermal source that regulate this low-temperature receiver, the air entering air-conditioning cabinet 1 is lowered the temperature accordingly by freezing surface cooler 1a and is dehumidified, heated up accordingly by cold and hot surface cooler 1b, and carrying out corresponding humidification by humidifier 1e, the air exported through blower fan 1d can keep the temperature and humidity stable conditions of environmental chamber.
As the defrost state of Fig. 5, air-conditioning cabinet 1, refrigerating plant, chilled water pump 12 and hot and cold water pump 23 all run in this condition, the blade full open of electronic air lock 1c, lower blade contract fully, heater 21 stops, second import b and the full conducting of outlet ab, the first import a of three-way control valve 11 close, the import AB1 of freezing three-way cut-off valve 13 and second outlet B1 conducting, the first outlet A1 close, and the import AB2 of cold and hot three-way cut-off valve 22 and first outlet A2 opens, the second outlet B2 closes.
Thus, environmental chamber regulating working conditions system enters defrost state and the refrigerating medium exported by the outlet of freezing surface cooler 1a can be made first to input condensation heat recoverer 2a and carry out heat exchange intensification wherein, then the refrigerating medium after heating up by being back to the import of freezing surface cooler 1a after the second import b of three-way control valve 11 and import AB1 and the second outlet B1 of outlet ab, chilled water pump 12, freezing three-way cut-off valve 13, achieves the defrosting of freezing surface cooler successively; And, make the refrigerating medium that the outlet of cold and hot surface cooler 1b exports, first successively evaporimeter 2b is inputted by import AB2 and the first outlet A2 of hot and cold water pump 23, cold and hot three-way cut-off valve 22, then be back to the import of cold and hot surface cooler 1b after carrying out heat exchange cooling in evaporimeter 2b again by the heater 21 not carrying out heating, achieve the cooling of cold and hot surface cooler.
Thus, freezing surface cooler 1a is when after zero degree and following operating mode run a period of time when surperficial frosting, can make environmental chamber regulating working conditions system works of the present invention under defrost state, freezing surface cooler 1a utilizes the refrigerating medium of intensification to defrost when electronic air lock 1c lower blade is closed, defrost process air is without freezing surface cooler 1a, and be through electronic air lock 1c blade and enter air-conditioning cabinet 1, lower the temperature via cold and hot surface cooler 1b, blower fan 1d is able to maintain cold to environmental chamber and exports.Thus, realize freezing surface cooler 1a automatic defrosting, and can keep carrying out cooling to environmental chamber in defrost process, reduce defrost process to greatest extent to the impact of chamber temperature operating mode.
As returned to form after the defrosting of Fig. 6, the state of environmental chamber regulating working conditions various parts is substantially identical with cooling state in this condition, and difference is only: the blade full open of electronic air lock 1c, lower blade contract fully.
Thus, return to form down after the frost is removed, freezing surface cooler 1a utilizes evaporimeter 2b to carry out fast cooling to the refrigerating medium of freeze cycle when electronic air lock 1c lower blade is closed, the air entering air-conditioning cabinet 1 is then lowered the temperature via cold and hot surface cooler 1b, and blower fan 1d is able to maintain cold to environmental chamber and exports.Thus, return to form after defrosting, the original high temperature refrigerating medium in freezing surface cooler 1a can be avoided to impact chamber temperature, and be convenient to can enter stable conditions state fast after the refrigerating medium cooling of freeze cycle.
Above-mentioned each work condition state can switch according to the following steps:
When environmental chamber needs to remain on worst cold case, first environmental chamber regulating working conditions system enters cooling state, to make environmental chamber close to Low Temperature Target temperature, then stable conditions state is entered, to make the stable conditions of environmental chamber at target temperature and target humidity, finally enter cyclic process, this cyclic process comprises: when making freezing surface cooler frosting at environmental chamber regulating working conditions system held low-temperature condition, enter defrost state, return to form enter defrosting after freezing surface cooler completes defrosting after, return to form after defrosting at the refrigerating medium in freeze cycle pipeline and reenter stable conditions state after completing cooling, thus under making environmental chamber remain on worst cold case continually and steadily,
When environmental chamber needs to remain on normal temperature or worst hot case, first described environmental chamber regulating working conditions system enters intensification or cooling state, to make environmental chamber close to target temperature, then enters stable conditions state.
The present invention does not limit to and above-mentioned detailed description of the invention; according to foregoing; according to ordinary technical knowledge and the customary means of this area; do not departing under the present invention's above-mentioned basic fundamental thought prerequisite; the present invention can also make the equivalent modifications of other various ways, replacement or change, all drops among protection scope of the present invention.
Claims (4)
1. an environmental chamber regulating working conditions system, is characterized in that: described environmental chamber regulating working conditions system comprises air-conditioning cabinet (1), refrigerating plant (2), refrigerating medium freeze cycle pipeline and refrigerating medium thermal-cold circulating pipeline;
Described air-conditioning cabinet (1) is provided with freezing surface cooler (1a), cold and hot surface cooler (1b), electronic air lock (1c), blower fan (1d) and humidifier (1e), described electronic air lock (1c) is provided with blade and lower blade, lower blade is positioned at the air inlet of freezing surface cooler (1a), and blade is positioned between the air outlet of freezing surface cooler (1a) and the air inlet of cold and hot surface cooler (1b);
Described refrigerating plant (2) comprises condensation heat recoverer (2a), evaporimeter (2b), compressor (2c), condenser (2d) and expansion valve (2e); Evaporimeter (2b) for cooling refrigerating medium, the condensation waste heat that condensation heat recoverer (2a) is discharged for reclaiming compressor (2c);
Described refrigerating medium freeze cycle pipeline comprises three-way control valve (11), chilled water pump (12) and freezing three-way cut-off valve (13), the outlet of described freezing surface cooler (1a) is divided into two-way, one tunnel is communicated with the first import (a) of three-way control valve (11), another road is communicated with the refrigerating medium import of condensation heat recoverer (2a), second import (b) of the refrigerating medium outlet three-way control valve (11) of described condensation heat recoverer (2a), the outlet (ab) of three-way control valve (11) is communicated with the import (AB1) of freezing three-way cut-off valve (13) by chilled water pump (12), first outlet (A1) of freezing three-way cut-off valve (13) is communicated with the refrigerating medium import of evaporimeter (2b), the refrigerating medium outlet of described evaporimeter (2b), second outlet (B1) of freezing three-way cut-off valve (13) is connected with the import of freezing surface cooler (1a),
Described thermal-cold circulating pipeline comprises heater (21), cold and hot three-way cut-off valve (22) and hot and cold water pump (23), the outlet of described cold and hot surface cooler (1b) is communicated with the import (AB2) of cold and hot three-way cut-off valve (22) by hot and cold water pump (23), first outlet (A2) of cold and hot three-way cut-off valve (22) is communicated with the refrigerating medium import of evaporimeter (2b), the refrigerating medium outlet of evaporimeter (2b), second outlet (B2) of cold and hot three-way cut-off valve (22) is connected with the import of heater (21), the import of the cold and hot surface cooler of outlet (1b) of heater (21).
2. environmental chamber regulating working conditions system according to claim 1, is characterized in that: described system can be operated in following state:
Cooling state, described blower fan (1d) in this condition, refrigerating plant (2), chilled water pump (12) and hot and cold water pump (23) all run, the blade contract fully of described electronic air lock (1c), lower blade full open, described heater (21) and humidifier (1e) quit work, first import (a) of described three-way control valve (11) and the full conducting of outlet (ab), second import (b) is closed, the import (AB1) of described freezing three-way cut-off valve (13) and first outlet (A1) conducting, second outlet (B1) is closed, the import (AB2) of described cold and hot three-way cut-off valve (22) and first outlet (A2) conducting, second outlet (B2) is closed,
Soaking condition, described blower fan (1d), hot and cold water pump (23) and heater (21) all run in this condition, described refrigerating plant (2), chilled water pump (12) and humidifier (1e) stop, blade full open, the lower blade contract fully of described electronic air lock (1c), the import (AB2) of described cold and hot three-way cut-off valve (22) and second outlet (B2) conducting, the first outlet (A2) are closed, and the power output of described heater (21) regulates according to environmental chamber institute calorific requirement;
Stable conditions state, described air-conditioning cabinet (1) in this condition, refrigerating plant (2), chilled water pump (12), hot and cold water pump (23) all runs, the required relative humidity of the blade aperture of described electronic air lock (1c) and lower blade aperture foundation environmental chamber regulates, first import (a) of described three-way control valve (11) and the aperture ratio of the second import (b) regulate by environmental chamber institute chilling requirement, the import (AB1) of described freezing three-way cut-off valve (13) and first outlet (A1) conducting, second outlet (B1) is closed, the import (AB2) of described cold and hot three-way cut-off valve (22) and the second outlet (B2) are opened, first outlet (A2) is closed, the power output of described heater (21) regulates according to environmental chamber institute calorific requirement, the power output of described humidifier (1e) regulates according to adding moisture needed for environmental chamber.
3. environmental chamber regulating working conditions system according to claim 2, is further characterized in that: described system can also be operated in following state:
Defrost state, described air-conditioning cabinet (1) in this condition, refrigerating plant (2), chilled water pump (12) and hot and cold water pump (23) all run, the blade full open of described electronic air lock (1c), lower blade contract fully, described heater (21) stops, second import (b) of described three-way control valve (11) and the full conducting of outlet (ab), first import (a) is closed, the import (AB1) of described freezing three-way cut-off valve (13) and second outlet (B1) conducting, first outlet (A1) is closed, the import (AB2) of described cold and hot three-way cut-off valve (22) and the first outlet (A2) are opened, second outlet (B2) is closed.
Return to form after defrosting, described air-conditioning cabinet (1) in this condition, refrigerating plant (2), chilled water pump (12) and hot and cold water pump (23) all run, the blade full open of described electronic air lock (1c), lower blade contract fully, described heater (21) quits work, first import (a) of described three-way control valve (11) and the full conducting of outlet (ab), second import (b) is closed, the import (AB1) of described freezing three-way cut-off valve (13) and first outlet (A1) conducting, second outlet (B1) is closed, the import (AB2) of described cold and hot three-way cut-off valve (22) and first outlet (A2) conducting, second outlet (B2) is closed.
4. a work condition state changing method for environmental chamber regulating working conditions system described in claim 3, is characterized in that comprising the following steps:
When environmental chamber needs to remain on worst cold case, first described environmental chamber regulating working conditions system enters cooling state, to make environmental chamber close to Low Temperature Target temperature, then stable conditions state is entered, to make the stable conditions of environmental chamber at target temperature and target humidity, finally enter cyclic process, this cyclic process comprises: when making freezing surface cooler tie full frost at environmental chamber regulating working conditions system held low-temperature condition, enter defrost state, return to form enter defrosting after freezing surface cooler completes defrosting after, return to form after defrosting at the refrigerating medium in freeze cycle pipeline and reenter stable conditions state after completing cooling, thus under making environmental chamber continue to remain on worst cold case,
When environmental chamber needs to remain on normal temperature or worst hot case, first described environmental chamber regulating working conditions system enters intensification or cooling state, to make environmental chamber close to target temperature, then enters stable conditions state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440415.0A CN104296276B (en) | 2014-09-01 | A kind of environmental chamber regulating working conditions system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440415.0A CN104296276B (en) | 2014-09-01 | A kind of environmental chamber regulating working conditions system |
Publications (2)
| Publication Number | Publication Date |
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| CN104296276A true CN104296276A (en) | 2015-01-21 |
| CN104296276B CN104296276B (en) | 2017-01-04 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864536A (en) * | 2015-06-23 | 2015-08-26 | 向君 | Efficient energy-saving multi-stage heat and humidity treatment air conditioning device and treatment method thereof |
| CN107166665A (en) * | 2015-06-29 | 2017-09-15 | 张琴 | A kind of method of work of high-tension distribution chamber of converting |
| CN108131758A (en) * | 2015-06-29 | 2018-06-08 | 吴小再 | Using the cool-down dehumidification energy saver and method of work of air-conditioning |
| CN108151362A (en) * | 2017-12-22 | 2018-06-12 | 台州龙江化工机械科技有限公司 | A kind of refrigeration system |
| CN108317632A (en) * | 2017-01-17 | 2018-07-24 | 河南中烟工业有限责任公司 | A kind of air-conditioning system |
| CN109999926A (en) * | 2019-04-26 | 2019-07-12 | 上海利正卫星应用技术有限公司 | Antifrost high and low temperature alternating humidity test chamber |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042604A (en) * | 2001-07-25 | 2003-02-13 | Denso Corp | Vapor compression type heat pump cycle and air conditioner |
| JP2003279190A (en) * | 2002-03-19 | 2003-10-02 | Kitakyushu Foundation For The Advancement Of Industry Science & Technology | Device and method for dehumidifying gas |
| JP2007078230A (en) * | 2005-09-13 | 2007-03-29 | Tokyo Rika Kikai Kk | Thermo-hygrostat and its operation method |
| CN101949658A (en) * | 2009-06-05 | 2011-01-19 | 法雷奥热系统公司 | Heat exchange device and thermal management system |
| CN102331048A (en) * | 2011-07-23 | 2012-01-25 | 济源市贝迪地能中央空调设备有限公司 | Air conditioning system of combined-type gas-water dual-heat-source heat-pump-type electric automobile |
| CN202382372U (en) * | 2011-10-26 | 2012-08-15 | 南京五洲制冷集团有限公司 | Condensation heat recovery type water-cooled constant temperature and constant humidity air-conditioning unit |
| CN103075774A (en) * | 2013-01-09 | 2013-05-01 | 合肥天鹅制冷科技有限公司 | Combined air handling unit driven by total heat recovery type heat pump |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003042604A (en) * | 2001-07-25 | 2003-02-13 | Denso Corp | Vapor compression type heat pump cycle and air conditioner |
| JP2003279190A (en) * | 2002-03-19 | 2003-10-02 | Kitakyushu Foundation For The Advancement Of Industry Science & Technology | Device and method for dehumidifying gas |
| JP2007078230A (en) * | 2005-09-13 | 2007-03-29 | Tokyo Rika Kikai Kk | Thermo-hygrostat and its operation method |
| CN101949658A (en) * | 2009-06-05 | 2011-01-19 | 法雷奥热系统公司 | Heat exchange device and thermal management system |
| CN102331048A (en) * | 2011-07-23 | 2012-01-25 | 济源市贝迪地能中央空调设备有限公司 | Air conditioning system of combined-type gas-water dual-heat-source heat-pump-type electric automobile |
| CN202382372U (en) * | 2011-10-26 | 2012-08-15 | 南京五洲制冷集团有限公司 | Condensation heat recovery type water-cooled constant temperature and constant humidity air-conditioning unit |
| CN103075774A (en) * | 2013-01-09 | 2013-05-01 | 合肥天鹅制冷科技有限公司 | Combined air handling unit driven by total heat recovery type heat pump |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864536B (en) * | 2015-06-23 | 2017-05-03 | 向君 | Efficient energy-saving multi-stage heat and humidity treatment air conditioning device and treatment method thereof |
| CN104864536A (en) * | 2015-06-23 | 2015-08-26 | 向君 | Efficient energy-saving multi-stage heat and humidity treatment air conditioning device and treatment method thereof |
| CN107166665A (en) * | 2015-06-29 | 2017-09-15 | 张琴 | A kind of method of work of high-tension distribution chamber of converting |
| CN108131758A (en) * | 2015-06-29 | 2018-06-08 | 吴小再 | Using the cool-down dehumidification energy saver and method of work of air-conditioning |
| CN108317632A (en) * | 2017-01-17 | 2018-07-24 | 河南中烟工业有限责任公司 | A kind of air-conditioning system |
| CN108151362B (en) * | 2017-12-22 | 2020-10-30 | 台州龙江化工机械科技有限公司 | Refrigerating system |
| CN108151362A (en) * | 2017-12-22 | 2018-06-12 | 台州龙江化工机械科技有限公司 | A kind of refrigeration system |
| CN109999926A (en) * | 2019-04-26 | 2019-07-12 | 上海利正卫星应用技术有限公司 | Antifrost high and low temperature alternating humidity test chamber |
| CN109999926B (en) * | 2019-04-26 | 2021-07-06 | 上海利正卫星应用技术有限公司 | Anti-frosting high-low temperature alternating damp-heat test box |
| CN111854236A (en) * | 2020-08-27 | 2020-10-30 | 河北省人工影响天气办公室 | Improved temperature control system and method |
| CN111854236B (en) * | 2020-08-27 | 2023-12-12 | 河北省人工影响天气中心 | Improved temperature control system and method |
| CN115289729A (en) * | 2022-01-22 | 2022-11-04 | 浙江理工大学 | CO (carbon monoxide) 2 Defrosting device for heat pump |
| WO2024057506A1 (en) * | 2022-09-15 | 2024-03-21 | 株式会社アドテックス | Cooling and heating device |
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Address after: 510302 No. 204 Xingang West Road, Haizhu District, Guangzhou City, Guangdong Province Patentee after: China Electrical Appliance Research Institute Co., Ltd. Address before: 510302 No. 204 West Xingang Road, Guangdong, Guangzhou Patentee before: China National Electric Apparatus Research Institute Co., Ltd. |