CN111219805A - Variable-channel operation air handling unit with adjustable working conditions and combined epidemic prevention and control method thereof - Google Patents
Variable-channel operation air handling unit with adjustable working conditions and combined epidemic prevention and control method thereof Download PDFInfo
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- CN111219805A CN111219805A CN202010212646.1A CN202010212646A CN111219805A CN 111219805 A CN111219805 A CN 111219805A CN 202010212646 A CN202010212646 A CN 202010212646A CN 111219805 A CN111219805 A CN 111219805A
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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
- F24F3/147—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 with both heat and humidity transfer between supplied and exhausted air
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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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/77—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 by controlling the speed of ventilators
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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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A variable-channel operation air handling unit with a smooth epidemic prevention combined with an adjustable working condition and a control mode thereof belong to the field of energy utilization technology and air conditioning. Consists of a blower, two evaporators, a return air valve, two fresh air valves and three bypass air valves. When in refrigeration operation, a return air valve and a fresh air valve are opened, the fresh air and the return air are mixed in proportion and then simultaneously undergo heat and humidity exchange through two evaporators so as to achieve the purposes of cooling and dehumidifying, and the two evaporators are arranged in parallel relative to air flow by adjusting different on-off states of three bypass air valves; when the epidemic situation comes, the return valve air is closed, the two fresh air valves are opened simultaneously, the rotating speed of the fan is adjusted through the frequency converter to reduce the air quantity to the proper air quantity, in order to increase the enthalpy difference of air treatment, the fresh air enters the air treatment unit and sequentially passes through the two evaporators, the two evaporators are arranged in series relative to the air flow by adjusting different on-off states of the three bypass air valves, and the air is treated to a required hot and wet state point and then is sent into a room.
Description
Technical Field
The invention relates to an air handling unit, in particular to an air handling unit capable of operating in a variable-channel mode by combining epidemic prevention with adjustable working conditions and a control mode thereof.
Background
2019 and 2020 novel COVID-19 coronavirus pneumonia which occurs in the world, let us realize that a central air-conditioning air handling unit possibly plays a role in promoting the indoor propagation of viruses; the new air handling unit is considered to be needed again, energy-saving operation can be carried out in most of the ordinary time, virus spreading can be avoided when epidemic situations come, and health of people is guaranteed. The civil building air conditioning system in China mostly adopts a new return air mixed mode, and because most of air circulates indoors, infectious viruses have the opportunity to be spread indoors and harm the health and safety of the public. In an infectious disease ward, a full fresh air operation mode is generally adopted, indoor harmful substances can be diluted and discharged outdoors, and indoor air quality is obviously improved; however, the same air handling unit simply converts return air into fresh air, which has many problems: 1. fresh air is processed by the same air processing amount, so that the positive pressure of a room is too high, the discomfort of people is increased, and doors and windows are not closed tightly; 2. the exhaust air is directly discharged outdoors, and the cold energy is wasted; 3. the operation of the full fresh air working condition enables the energy consumption of fresh air treatment to be greatly increased, and the energy consumption of the fresh air working condition for treating the same air quantity is more than one time of the energy consumption of the return air working condition.
The air handling unit and the control mode thereof run in combination with the adjustable working condition and variable channels have the basic functions of: in the normal refrigeration state, in consideration of energy conservation and air quality, the ventilation frequency of a comfortable air conditioner is generally 6-8 times/hour, fresh air is mixed with return air, the mixing ratio of the fresh air and the return air is generally 20%, mixed air entering a unit is subjected to heat and humidity treatment by two evaporators at the same time and then is sent into a room, and the two evaporators are arranged in parallel relative to air flow; when the epidemic situation comes, the return valve air is closed, the two fresh air valves are opened simultaneously, the positive pressure value of the room cannot be too large, the fresh air exchange frequency is generally 3-4 times/hour, the rotating speed of the fan is reduced to the proper air quantity about half of the ordinary air quantity through the frequency converter, the heat and humidity load of the fresh air working condition in summer is much larger than that of the return air working condition, outdoor fresh air enters the air treatment unit and then is sequentially subjected to heat and humidity treatment by the two evaporators and then is sent into the room, and the two evaporators are arranged in series relative to the air flow, so that the enthalpy difference of the treated fresh air can be increased.
Aiming at different requirements on energy conservation and air quality during normal times and epidemic situations, the air handling unit combines the conditions of handling different loads of return air and fresh air, and achieves the effects of not only adjusting the air quantity, but also meeting the requirement of handling the fresh air with large enthalpy difference by adjusting the air quantity and changing an air operation channel; when the epidemic situation occurs, the virus is prevented from being transmitted through an air conditioner, and the requirement of indoor temperature and humidity is met.
Disclosure of Invention
The invention aims to provide the air handling unit which has a simple and reasonable structure, can adjust the operation working condition by changing the air flow channel and the air quantity, is suitable for multi-working condition operation in different periods with epidemic situations at ordinary times, has low energy consumption, can be operated by combining the adjustable working condition and can change the channel and the control mode thereof, so as to overcome the defects in the prior art.
The air handling unit designed according to the purpose and capable of operating in a variable-channel mode under the adjustable working condition comprises a blower (3), two evaporators, a return air valve (1), two fresh air valves and three bypass air valves.
The air handling unit is characterized in that the evaporator a (1) and the evaporator b (2) are both surface heat exchangers of air-water or air-refrigerant, and the materials are mainly aluminum foil and copper pipe; the evaporator b (2) and the evaporator a (1) are arranged in the air handling unit in a front-back staggered manner, and the lower part of the evaporator a (1) is connected with the upper part of the evaporator b (2) through a bypass air valve b (8); the lower part of the evaporator a (1) is also connected with another bypass air valve c (9), the upper part of the evaporator b (2) is also connected with another bypass air valve a (7), the evaporator a (1), the bypass air valve b (8) and the bypass air valve a (7) are combined into an air processing channel 1 during normal refrigeration operation, the evaporator b (2), the bypass air valve b (8) and the bypass air valve c (9) are combined into another air processing channel 2, and the evaporator a (1), the bypass air valve c (9), the evaporator b (2) and the bypass air valve a (7) are combined into an air processing channel 3 during epidemic situation; an air inlet section of the air handling unit is formed by combining an air return valve (4), a fresh air valve a (5), a fresh air valve b (6), an evaporator a (1) and a bypass air valve c (9); the blower (3) is positioned at the air outlet side of the air handling unit, and the air volume of the blower (3) can be adjusted by a frequency converter.
When in refrigeration operation at ordinary times, the ventilation frequency of the comfortable air conditioner is generally 6-8 times/hour in consideration of energy conservation and air quality, the heat and humidity load treatment is carried out after the fresh air and the return air are mixed in proportion, at the moment, the return air valve (4) and the fresh air valve a (5) are opened, and the fresh air valve b (6) is closed; the bypass air valve b (8) is closed, the bypass air valve a (7) and the bypass air valve c (9) are opened, mixed air passes through the evaporator a (1) of the channel 1, the bypass air valve a (7), the bypass air valve c (9) of the channel 2 and the evaporator b (2) at the same time, the evaporator a (1) and the evaporator b (2) are arranged in parallel relative to air flow, the evaporator carries out heat and humidity treatment on the mixed air, and the cold energy of the evaporator can be adjusted by the opening degree of the proportional integral electric water valve or the opening number of the compressor; the blower (3) operates according to the designed normal air quantity, and the frequency converter can also adjust the rotating speed of the blower within a small range through the differential pressure signal of the air filter.
When an epidemic situation occurs, in order to prevent virus propagation, the air handling unit needs to operate by using full fresh air, because the heat and humidity load of the fresh air working condition in summer is much larger than that of the return air working condition, the positive pressure value of a room cannot be too large, the ventilation frequency of the full fresh air is generally 3-4 times/hour, and the air quantity is half of that of ordinary times; at the moment, the air return valve (4) is closed, the fresh air valve a (5) and the fresh air valve b (6) are opened, and fresh air enters the air handling unit; the evaporator a (1), the bypass air valve c (9), the evaporator b (2) and the bypass air valve a (7) are combined into an air treatment channel 3, fresh air entering the unit sequentially passes through the evaporator a (1), the bypass air valve b (8) and the evaporator b (2) of the channel 3, the evaporator a (1) and the evaporator b (2) are arranged in series relative to air flow, and the evaporator performs heat and humidity treatment on the fresh air, so that the enthalpy difference of the air treated by the evaporator is increased, and the cold energy of the evaporator can be adjusted by the opening degree of the proportional-integral electric water valve or the opening number of the compressors; the blower (3) adjusts the air volume to half of the usual air volume through a frequency converter.
The invention aims at different requirements on energy saving and air quality during normal times and epidemic situations, combines the conditions of different loads of return air and fresh air, and achieves the effects of adjusting the air quantity and meeting the requirement of processing the fresh air with large enthalpy difference by adjusting the air quantity and changing the air operation channel, and particularly, when the epidemic situations occur, the invention not only prevents viruses from passing through the air-conditioning transmission channel, but also meets the requirement of indoor temperature and humidity.
Drawings
Fig. 1 is a schematic view illustrating an operation of ordinary cooling operation according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the operation of the present invention when an epidemic occurs.
In the figure, (1) an evaporator a, (2) an evaporator b, (3) a blower, (4) a return air valve, (5) a fresh air valve a, (6) a fresh air valve b, (7) a bypass air valve a, (8) a bypass air valve b and (9) a bypass air valve c.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1 and 2, the air handling unit which is operated by combining the adjustable working condition and the variable channel and the control mode thereof consists of a blower (3), two evaporators, a return air valve (1), two fresh air valves and three bypass air valves. The evaporator a (1) and the evaporator b (2) are both surface type heat exchangers of air-water or air-refrigerant; the evaporator b (2) and the evaporator a (1) are arranged in the air handling unit in a front-back staggered manner, and the lower part of the evaporator a (1) is connected with the upper part of the evaporator b (2) through a bypass air valve b (8); the lower part of the evaporator a (1) is also connected with another bypass air valve c (9), the upper part of the evaporator b (2) is also connected with another bypass air valve a (7), the evaporator a (1), the bypass air valve b (8) and the bypass air valve a (7) are combined into an air processing channel 1 during normal refrigeration operation, the evaporator b (2), the bypass air valve b (8) and the bypass air valve c (9) are combined into another air processing channel 2, and the evaporator a (1), the bypass air valve c (9), the evaporator b (2) and the bypass air valve a (7) are combined into an air processing channel 3 during epidemic situation; an air inlet section of the air handling unit is formed by combining an air return valve (4), a fresh air valve a (5), a fresh air valve b (6), an evaporator a (1) and a bypass air valve c (9); the blower (3) is positioned at the air outlet side of the air handling unit, and the air volume of the blower (3) can be adjusted by a frequency converter.
The working principle is as follows:
first, normal refrigeration operation
Referring to fig. 1, in consideration of energy conservation and air quality, fresh air is mixed with return air, a return air valve (4) and a fresh air valve a (5) are opened, and a fresh air valve b (6) is closed; the bypass air valve b (8) is closed, the bypass air valve a (7) and the bypass air valve c (9) are opened, mixed air passes through the evaporator a (1) of the channel 1, the bypass air valve a (7), the bypass air valve c (9) of the channel 2 and the evaporator b (2) at the same time, the evaporator a (1) and the evaporator b (2) are arranged in parallel relative to air flow, the evaporator carries out heat and humidity treatment on the mixed air, and the cold energy of the evaporator can be adjusted by the opening degree of the proportional integral electric water valve or the opening number of the compressor; the blower (3) is operated by normal air quantity, and the frequency converter can also adjust the rotating speed of the blower within a small range through the differential pressure signal of the air filter.
Secondly, the epidemic situation occurs when the group operates
Referring to fig. 2, in order to prevent virus propagation, the air handling unit needs to operate with full fresh air, because the heat and humidity load of the fresh air working condition in summer is much larger than that of the return air working condition, and the positive pressure value of a room cannot be too large, the times of fresh air ventilation are generally 3-4 times/hour, and the air quantity is half of that of ordinary times; at the moment, the air return valve (4) is closed, the fresh air valve a (5) and the fresh air valve b (6) are opened, and fresh air enters the air handling unit; the bypass air valve a (7) and the bypass air valve c (9) are closed, the bypass air valve b (8) is opened, the evaporator a (1), the bypass air valve c (9), the evaporator b (2) and the bypass air valve a (7) are combined into an air treatment channel 3, fresh air entering the unit sequentially passes through the evaporator a (1), the bypass air valve b (8) and the evaporator b (2) of the channel 3, the evaporator a (1) and the evaporator b (2) are arranged in series relative to air flow, and the evaporator performs heat and humidity treatment on the fresh air, so that the evaporator treats the enthalpy difference of air, and the cold energy of the evaporator can be adjusted by the opening degree of the proportional-integral electric water valve or the opening number of the compressors; the blower (3) adjusts the air volume to half of the usual air volume through a frequency converter.
Claims (5)
1. The air handling unit capable of operating in a variable channel mode under the combination of the peaceful and epidemic prevention and the adjustable working conditions and the control mode thereof comprise a blower (3), two evaporators, a return air valve (4), two fresh air valves and three bypass air valves.
2. The air handling unit and the control method thereof according to claim 1, wherein the evaporator a (1) and the evaporator b (2) are both air-water or air-refrigerant surface heat exchangers; the evaporator b (2) and the evaporator a (1) are arranged in the air handling unit in a front-back staggered manner, and the lower part of the evaporator a (1) is connected with the upper part of the evaporator b (2) through a bypass air valve b (8); the lower part of the evaporator a (1) is also connected with another bypass air valve c (9), and the upper part of the evaporator b (2) is also connected with another bypass air valve a (7).
3. The air handling unit and the control method thereof according to claim 2, wherein during the normal refrigeration operation, the evaporator a (1), the bypass air valve b (8) and the bypass air valve a (7) are combined to form an air handling channel 1; the evaporator b (2), the bypass air valve b (8) and the bypass air valve c (9) are combined into another air treatment channel 2; the mixed air simultaneously passes through the evaporator a (1) of the channel 1, the bypass air valve a (7), the bypass air valve c (9) of the channel 2 and the evaporator b (2), and the evaporator a (1) and the evaporator b (2) are arranged in parallel relative to the air flow.
4. The tie epidemic prevention combined with the adjustable working condition variable channel operation air handling unit and the control method thereof according to claim 2, characterized in that when the epidemic situation occurs, the evaporator a (1), the bypass air valve c (9), the evaporator b (2) and the bypass air valve a (7) are combined into a further air handling channel 3, fresh air entering the unit sequentially passes through the evaporator a (1), the bypass air valve b (8) and the evaporator b (2) of the channel 3, and the evaporator a (1) and the evaporator b (2) are arranged in series relative to the air flow.
5. The flatting epidemic prevention combined with the adjustable working condition variable channel running air handling unit and the control method thereof according to claim 1, characterized in that the air return valve (4), the fresh air valve a (5) and the other fresh air valve b (6) are arranged on the air inlet side of the air handling unit and are used for controlling different air inlets and adjusting air volume; the air feeder (3) is positioned on the air outlet side of the air handling unit, and the air feeder (3) can adjust the air volume through the frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010212646.1A CN111219805A (en) | 2020-03-24 | 2020-03-24 | Variable-channel operation air handling unit with adjustable working conditions and combined epidemic prevention and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010212646.1A CN111219805A (en) | 2020-03-24 | 2020-03-24 | Variable-channel operation air handling unit with adjustable working conditions and combined epidemic prevention and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111219805A true CN111219805A (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010212646.1A Pending CN111219805A (en) | 2020-03-24 | 2020-03-24 | Variable-channel operation air handling unit with adjustable working conditions and combined epidemic prevention and control method thereof |
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| Country | Link |
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| CN (1) | CN111219805A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361484A (en) * | 2020-11-10 | 2021-02-12 | 珠海格力电器股份有限公司 | Double-cold-source multi-runner temperature and humidity adjusting system and refrigerating equipment |
| CN115962552A (en) * | 2022-10-27 | 2023-04-14 | 基准方中建筑设计股份有限公司 | Air conditioner ventilation centralized control system that tie epidemic combines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2826242Y (en) * | 2005-11-18 | 2006-10-11 | 广东省吉荣空调设备公司 | Big enthalpy difference full fresh air secondary refrigerating type roof air conditioner |
| WO2013131436A1 (en) * | 2012-03-05 | 2013-09-12 | Rong Guohua | Air-conditioning unit with heat recovery |
| CN104406254A (en) * | 2014-11-27 | 2015-03-11 | 广东申菱空调设备有限公司 | Whole-process energy saving type evaporating cooling air conditioner system and control method thereof |
| CN206469445U (en) * | 2016-12-02 | 2017-09-05 | 南京五洲制冷集团有限公司 | A kind of big enthalpy difference type condensing units air-conditioner set of all-fresh air |
| CN207350580U (en) * | 2017-03-22 | 2018-05-11 | 南京五洲制冷集团有限公司 | One kind removes haze type Full fresh air purifying air-conditioner set |
-
2020
- 2020-03-24 CN CN202010212646.1A patent/CN111219805A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2826242Y (en) * | 2005-11-18 | 2006-10-11 | 广东省吉荣空调设备公司 | Big enthalpy difference full fresh air secondary refrigerating type roof air conditioner |
| WO2013131436A1 (en) * | 2012-03-05 | 2013-09-12 | Rong Guohua | Air-conditioning unit with heat recovery |
| CN104406254A (en) * | 2014-11-27 | 2015-03-11 | 广东申菱空调设备有限公司 | Whole-process energy saving type evaporating cooling air conditioner system and control method thereof |
| CN206469445U (en) * | 2016-12-02 | 2017-09-05 | 南京五洲制冷集团有限公司 | A kind of big enthalpy difference type condensing units air-conditioner set of all-fresh air |
| CN207350580U (en) * | 2017-03-22 | 2018-05-11 | 南京五洲制冷集团有限公司 | One kind removes haze type Full fresh air purifying air-conditioner set |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112361484A (en) * | 2020-11-10 | 2021-02-12 | 珠海格力电器股份有限公司 | Double-cold-source multi-runner temperature and humidity adjusting system and refrigerating equipment |
| CN115962552A (en) * | 2022-10-27 | 2023-04-14 | 基准方中建筑设计股份有限公司 | Air conditioner ventilation centralized control system that tie epidemic combines |
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Application publication date: 20200602 |