CN115325624A - Constant-temperature and constant-humidity air conditioning system for storing capsules and control method thereof - Google Patents
Constant-temperature and constant-humidity air conditioning system for storing capsules and control method thereof Download PDFInfo
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- CN115325624A CN115325624A CN202211011928.0A CN202211011928A CN115325624A CN 115325624 A CN115325624 A CN 115325624A CN 202211011928 A CN202211011928 A CN 202211011928A CN 115325624 A CN115325624 A CN 115325624A
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- 239000002775 capsule Substances 0.000 title claims abstract description 38
- 238000004378 air conditioning Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000004069 differentiation Effects 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 238000004590 computer program Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Images
Classifications
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
Abstract
The invention discloses a constant temperature and humidity air conditioning system for storing capsules and a control method thereof, wherein the system comprises a capsule storage bin, an air supply pipe group, an air return pipe group and two constant temperature and humidity units; the air supply pipe group comprises two first air supply pipes and two second air supply pipes, a first electric air valve is arranged in the middle of each of the two first air supply pipes, and two ends of each of the two first electric air valves are connected through the two second air supply pipes respectively; two ends of the two first air supply pipes extend into the capsule storage bin and are provided with a plurality of air supply openings at intervals; the two second air supply pipes are connected with second electric air valves respectively, and the two second electric air valves are connected to the air outlet ends of the two constant temperature and humidity units respectively; the capsule storage bin is provided with a plurality of air return ports, and the air inlet ends of the two constant temperature and humidity units are respectively connected to the air return ports of the capsule storage bin through air return pipe groups; the invention can realize the advantages of non-stop operation of the air conditioning system and small temperature and humidity poking.
Description
Technical Field
The invention relates to a constant-temperature and constant-humidity air conditioning system for storing capsules and a control method thereof, belonging to the technical field of air conditioning control.
Background
With the development of the medical purification industry, the requirements for purifying constant-temperature and constant-humidity places are more and more, and the requirements for constant-temperature and constant-humidity air conditioning systems are not nearly the same, wherein the constant-temperature and constant-humidity air conditioning system for storing capsules needs the air conditioning system to meet fixed temperature and humidity all the year around and run without stopping, but the existing conventional constant-temperature and constant-humidity air conditioning system scheme cannot meet the requirements; the reason is as follows:
at present, the conventional constant-temperature and constant-humidity air conditioning system scheme dehumidifies through surface cooling, then heats up through PTC electrical heating, humidifies by an electrode humidifier, the precision is difficult to guarantee, and the non-stop operation cannot be realized, and when a unit fails or stops, because a compressor stops, the saturated temperature of an evaporator system rises, condensate water attached to the evaporator system is heated, so that the room humidity rises suddenly after the air conditioning system fails, the temperature and humidity of the system fluctuate greatly, and the requirement of storing capsules cannot be met
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a constant temperature and humidity air conditioning system for storing capsules and a control method thereof, and solves the technical problems that the existing constant temperature and humidity air conditioning system is low in precision, the indoor temperature and humidity are seriously fluctuated after a fault occurs, and the air conditioning system cannot run without stopping.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, the invention provides a constant-temperature and constant-humidity air conditioning system for storing capsules, which comprises a capsule storage bin, an air supply pipe group, an air return pipe group and two constant-temperature and constant-humidity units, wherein the capsule storage bin is provided with a plurality of air supply pipes; the air supply pipe group comprises two first air supply pipes and two second air supply pipes, a first electric air valve is arranged in the middle of each of the two first air supply pipes, and two ends of each of the two first electric air valves are connected through the two second air supply pipes respectively; two ends of the two first air supply pipes extend into the capsule storage bin and are provided with a plurality of air supply openings at intervals; the two second air supply pipes are connected with second electric air valves respectively, and the two second electric air valves are connected to the air outlet ends of the two constant temperature and humidity units respectively; the capsule storage bin is provided with a plurality of air return ports, and the air inlet ends of the constant temperature and humidity units are connected to the air return ports of the capsule storage bin through air return pipe groups respectively.
Optionally, the constant temperature and humidity unit includes the casing, inside air inlet end to the air-out end direction along the constant temperature and humidity unit of casing has set gradually filter, heat exchanger, heater, humidifier and forced draught blower.
Optionally, a compressor is connected to the heat exchanger, and the compressor is arranged outside the casing; the filter is a primary filter, the heater is a thyristor electric heating tube heater, and the humidifier is a hot water humidifier.
Optionally, the air inlet end of the constant temperature and humidity unit is provided with a temperature and humidity sensor.
Optionally, the first electric air valve and the second electric air valve are both analog quantity control valves.
In a second aspect, the present invention provides a method for controlling a constant temperature and humidity air conditioning system for storing capsules, comprising:
powering on the constant temperature and humidity air conditioning system and initializing;
enabling any constant temperature and humidity unit to execute a starting time sequence;
when the current constant temperature and humidity unit fails, the current constant temperature and humidity unit is made to execute a closing time sequence, and the other constant temperature and humidity unit is made to execute an opening time sequence;
wherein the turn-on sequence comprises: starting a compressor of the current constant temperature and humidity unit, starting the compressor at the starting time, and starting two first electric air valves and a second electric air valve corresponding to the current constant temperature and humidity unit after timing to reach a first preset time; starting the air feeder after the second preset time is reached; after the third preset time is reached, acquiring temperature and humidity signals of a temperature and humidity sensor, and carrying out PID (proportion integration differentiation) adjustment on the heater and the humidifier based on the temperature and humidity signals;
the close sequence includes: the compressor of the constant temperature and humidity unit is turned off, the starting point is the turning-off time, and the blower is turned off after the fourth preset time is timed; after the timing reaches the fifth preset time, closing a second air valve corresponding to the constant temperature and humidity unit;
and the time for the other constant temperature and humidity unit to execute the opening time sequence is as follows: when the blower is closed in the current constant temperature and humidity unit execution closing time sequence.
Optionally, the initializing includes opening the two first air valves and the two second air valves to the maximum and then closing.
Optionally, after the current constant temperature and humidity unit fails and lasts for a sixth preset time, another constant temperature and humidity unit executes a starting time sequence; after a compressor of the other constant temperature and humidity unit is started for a seventh preset time, the two first electric air valves are closed; after the current constant temperature and humidity unit does not break down and lasts for the eighth preset time, the current constant temperature and humidity unit executes a closing time sequence; when the compressor of the current constant temperature and humidity unit is closed, the two first electric air valves are opened.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a constant temperature and humidity air conditioning system for storing capsules and a control method thereof, wherein the constant temperature and humidity air conditioning system is provided with two sets of constant temperature and humidity units, the control method is combined, the non-stop requirement of a capsule storage warehouse system is solved through fault rotation control and normal rotation control, and the temperature and the humidity are not fluctuated when the system is rotated through adjusting a first electric air valve and a second electric air valve; meanwhile, the opening time sequence and the closing time sequence of the constant temperature and humidity unit are respectively set, so that the fluctuation of the temperature and the humidity during opening or closing is avoided; in conclusion, the invention can accurately complete the constant temperature and humidity control of the storage capsule.
Drawings
Fig. 1 is a schematic structural diagram of a constant temperature and humidity air conditioning system for storing capsules according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of a constant temperature and humidity air conditioning system for storing capsules according to a second embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The first embodiment is as follows:
the invention provides a constant-temperature and constant-humidity air conditioning system for storing capsules, which comprises a capsule storage bin, an air supply pipe group, an air return pipe group and two constant-temperature and constant-humidity units, wherein the capsule storage bin is provided with a plurality of capsules; the air supply pipe group comprises two first air supply pipes and two second air supply pipes, the middle parts of the two first air supply pipes are respectively provided with a first electric air valve, and two ends of the two first electric air valves are respectively connected through the two second air supply pipes; two ends of the two first air supply pipes extend into the capsule storage bin and are provided with a plurality of air supply outlets at intervals; the two second air supply pipes are connected with second electric air valves respectively, and the two second electric air valves are connected to the air outlet ends of the two constant temperature and humidity units respectively; the capsule storage bin is provided with a plurality of air return ports, and the air inlet ends of the two constant temperature and humidity units are connected to the air return ports of the capsule storage bin through air return pipe groups respectively.
Wherein, constant temperature and humidity unit includes the casing, and the inside air inlet end to the air-out end direction along constant temperature and humidity unit of casing has set gradually filter, heat exchanger, heater, humidifier and forced draught blower. The heat exchanger is connected with a compressor, and the compressor is arranged on the outer side of the shell; the filter is a primary filter, the heater is a thyristor electric heating tube heater, and the humidifier is a hot water humidifier. And a temperature and humidity sensor is arranged at the air inlet end of the constant temperature and humidity unit. The first electric air valve and the second electric air valve are both analog quantity control valves.
As shown in fig. 1, this embodiment provides a constant temperature and humidity air conditioning system for storing capsules, which is provided with 8 air outlets and 4 air returns, where the 8 air outlets are respectively marked as 4-1, 4-2, 4-3, 4-4, 4-5, 4-6, 4-7, and 4-8; the 4 air return ports are respectively marked as 3-1, 3-2, 3-3 and 3-4; the two first electric air valves are respectively marked as 5 and 6, the two second electric air valves are respectively marked as 7 and 8, the two constant temperature and humidity units are respectively marked as 1 and 2, and the two temperature and humidity sensors are respectively marked as 1-1 and 2-1; the construction of the constant temperature and humidity unit 1 is respectively marked as a filter 1-2, a heat exchanger 1-3, a heater 1-4, a humidifier 1-5 and a blower 1-6, and the construction of the constant temperature and humidity unit 2 is respectively marked as a filter 2-2, a heat exchanger 2-3, a heater 2-4, a humidifier 2-5 and a blower 2-6.
The air outlet ends of the constant temperature and humidity units 1 and 2 are respectively connected to two second air supply pipes through second electric air valves 7 and 8, and the two second air supply pipes are respectively connected to two ends of the first electric air valves 5 and 6; the air outlets 4-5, 4-6, 4-7 and 4-8 are arranged at two ends of the first wind-driven electric valve 5, and the air outlets 4-1, 4-2, 4-3 and 4-4 are arranged at two ends of the second wind-driven electric valve 6; temperature and humidity sensors 1-1 and 2-1 are respectively arranged at air inlet ends of the constant temperature and humidity unit 1 and 2, the air inlet end of the constant temperature and humidity unit 1 is respectively connected to air return ports 3-1 and 3-2 through air return pipes, and the air inlet end of the constant temperature and humidity unit 2 is respectively connected to the air return ports 3-3 and 3-4 through air return pipes.
The second embodiment:
based on the constant temperature and humidity air conditioning system of the storage capsule provided by the first embodiment, the embodiment provides a control method, which comprises the following steps:
1. powering on the constant temperature and humidity air conditioning system and initializing;
the initialization includes opening the two first electropneumatic valves 5, 6 and the two second electropneumatic valves 7, 8 to the maximum and then closing.
2. Any constant temperature and humidity unit executes a starting time sequence; suppose that the constant temperature and humidity unit 1 is started:
the start-up sequence includes: starting a compressor of the current constant temperature and humidity machine 1, starting from the starting time, and starting two first electric air valves 5 and 6 and a second electric air valve 7 corresponding to the current constant temperature and humidity machine set after timing to reach a first preset time (60 s); after the timing reaches a second preset time (65 s), starting the air blower 1-6; after the third preset time (75 s) is timed, acquiring temperature and humidity signals of the temperature and humidity sensor 1-1, and performing PID (proportion integration differentiation) adjustment on the heater 1-4 and the humidifier 1-5 based on the temperature and humidity signals;
3. when the current constant temperature and humidity unit 1 fails, the current constant temperature and humidity unit 1 is made to execute a closing time sequence and the other constant temperature and humidity unit 2 is made to execute an opening time sequence;
the shutdown sequence includes: closing a compressor of the constant temperature and humidity unit 1, timing to reach a fourth preset time (5 s) by taking the closing time as a starting point, and then closing the air feeder 1-6; after the timing reaches the fifth preset time (10 s), closing a second air valve 7 corresponding to the constant temperature and humidity unit 1;
the time for the other constant temperature and humidity unit 2 to execute the opening sequence is as follows: when the blower 1-6 is turned off in the present constant temperature and humidity unit 1 executing the off sequence.
In addition, the constant temperature and humidity units 1 and 2 can be controlled by normal rotation: after the current constant temperature and humidity unit 1 does not break down and lasts for a sixth preset time (178 h), enabling another constant temperature and humidity unit 2 to execute a starting time sequence; after the compressor of the other constant temperature and humidity unit 2 is started for a seventh preset time (100 s), the two first electric air valves 5 and 6 are closed; after the current constant temperature and humidity unit 1 does not break down and lasts for the eighth preset time (180 h), the current constant temperature and humidity unit 1 executes a closing time sequence; when the compressor of the current constant temperature and humidity unit 1 is closed, the two first electric air valves 5 and 6 are opened.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A constant temperature and humidity air conditioning system for storing capsules is characterized by comprising a capsule storage bin, an air supply pipe group, an air return pipe group and two constant temperature and humidity units; the air supply pipe group comprises two first air supply pipes and two second air supply pipes, a first electric air valve is arranged in the middle of each of the two first air supply pipes, and two ends of each of the two first electric air valves are connected through the two second air supply pipes respectively; two ends of the two first air supply pipes extend into the capsule storage bin and are provided with a plurality of air supply openings at intervals; the two second air supply pipes are connected with second electric air valves respectively, and the two second electric air valves are connected to the air outlet ends of the two constant temperature and humidity units respectively; the capsule storage bin is provided with a plurality of air return ports, two the air inlet end of the constant temperature and humidity unit is connected to the air return port of the capsule storage bin through an air return pipe group respectively.
2. The system of claim 1, wherein the constant temperature and humidity unit comprises a housing, and a filter, a heat exchanger, a heater, a humidifier and a blower are sequentially arranged inside the housing along the direction from the air inlet end to the air outlet end of the constant temperature and humidity unit.
3. The system of claim 2, wherein a compressor is connected to the heat exchanger, and the compressor is disposed outside the casing; the filter is a primary filter, the heater is a thyristor electric heating tube heater, and the humidifier is a hot water humidifier.
4. The capsule-storing constant-temperature and constant-humidity air conditioning system according to claim 1, wherein a temperature and humidity sensor is arranged at an air inlet end of the constant-temperature and constant-humidity unit.
5. The system of claim 1, wherein the first electro-pneumatic valve and the second electro-pneumatic valve are analog control valves.
6. A control method of a constant temperature and humidity air conditioning system for storing capsules is characterized by comprising the following steps:
powering on the constant temperature and humidity air conditioning system and initializing;
enabling any constant temperature and humidity unit to execute a starting time sequence;
when the current constant temperature and humidity unit fails, the current constant temperature and humidity unit is made to execute a closing time sequence, and the other constant temperature and humidity unit is made to execute an opening time sequence;
wherein the turn-on sequence comprises: starting a compressor of the current constant temperature and humidity unit, starting the compressor at the starting time, and starting two first electric air valves and a second electric air valve corresponding to the current constant temperature and humidity unit after timing to reach a first preset time; starting the air feeder after the second preset time is reached; after the third preset time is reached, acquiring temperature and humidity signals of a temperature and humidity sensor, and carrying out PID (proportion integration differentiation) adjustment on the heater and the humidifier based on the temperature and humidity signals;
the close sequence includes: the compressor of the constant temperature and humidity unit is turned off, the starting point is the turning-off time, and the blower is turned off after the fourth preset time is timed; after the timing reaches the fifth preset time, closing a second air valve corresponding to the constant temperature and humidity unit;
and the time for the other constant temperature and humidity unit to execute the opening time sequence is as follows: when the blower is closed in the current constant temperature and humidity unit execution closing time sequence.
7. The method of claim 6, wherein the initializing comprises opening the two first and second dampers to a maximum and then closing the two first and second dampers.
8. The method according to claim 6, wherein after the current constant temperature and humidity unit has not failed and lasts for a sixth predetermined time, another constant temperature and humidity unit executes a start sequence; after a compressor of the other constant temperature and humidity unit is started for a seventh preset time, the two first electric air valves are closed; after the current constant temperature and humidity unit does not break down and lasts for the eighth preset time, the current constant temperature and humidity unit executes a closing time sequence; when the compressor of the current constant temperature and humidity unit is closed, the two first electric air valves are opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211011928.0A CN115325624A (en) | 2022-08-23 | 2022-08-23 | Constant-temperature and constant-humidity air conditioning system for storing capsules and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211011928.0A CN115325624A (en) | 2022-08-23 | 2022-08-23 | Constant-temperature and constant-humidity air conditioning system for storing capsules and control method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532745A (en) * | 2009-03-13 | 2009-09-16 | 南京天加空调设备有限公司 | Energy-saving full-function refrigeration cycle system |
| CN206919325U (en) * | 2017-07-14 | 2018-01-23 | 武汉凯迪电力工程有限公司 | One kind becomes resh air requirement conditioner |
| KR20190089313A (en) * | 2018-01-22 | 2019-07-31 | 주식회사 센트라 | Thermo-hygrostat |
| KR20200112034A (en) * | 2019-03-20 | 2020-10-05 | 주식회사 진성피엘티 | Apparatus and controll method for constant temperature and humidity |
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2022
- 2022-08-23 CN CN202211011928.0A patent/CN115325624A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532745A (en) * | 2009-03-13 | 2009-09-16 | 南京天加空调设备有限公司 | Energy-saving full-function refrigeration cycle system |
| CN206919325U (en) * | 2017-07-14 | 2018-01-23 | 武汉凯迪电力工程有限公司 | One kind becomes resh air requirement conditioner |
| KR20190089313A (en) * | 2018-01-22 | 2019-07-31 | 주식회사 센트라 | Thermo-hygrostat |
| KR20200112034A (en) * | 2019-03-20 | 2020-10-05 | 주식회사 진성피엘티 | Apparatus and controll method for constant temperature and humidity |
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