CN111442448A - Combined air conditioning unit for independently cooling and dehumidifying fresh air - Google Patents
Combined air conditioning unit for independently cooling and dehumidifying fresh air Download PDFInfo
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- CN111442448A CN111442448A CN202010196862.1A CN202010196862A CN111442448A CN 111442448 A CN111442448 A CN 111442448A CN 202010196862 A CN202010196862 A CN 202010196862A CN 111442448 A CN111442448 A CN 111442448A
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
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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
- F24F11/89—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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Signal Processing (AREA)
- Thermal Sciences (AREA)
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- Mathematical Physics (AREA)
- Central Air Conditioning (AREA)
Abstract
The invention discloses a combined air conditioning unit for independently cooling and dehumidifying fresh air, wherein a case of a cabinet body of the air conditioning unit is provided with an air inlet, an air supply outlet and an air return inlet, a primary filter, a refrigeration coil, a first heating coil, a first filter, a surface air cooler, a second heating coil, an auxiliary heating source, a humidifier, a centrifugal fan and a second filter are sequentially arranged in the case from the air inlet to the air supply outlet, and the air return inlet is positioned between the first filter and the surface air cooler; there are compressor and condenser in the air conditioner outdoor unit, and the compressor import is connected with the refrigeration coil pipe exit, and the compressor export respectively with condenser import, first heating coil pipe import and second heating coil pipe access connection, the condenser export respectively with first heating coil pipe export and second heating coil pipe exit linkage together, a rethread pipeline via throttling arrangement with the refrigeration coil pipe access connection. The invention enhances the cooling and dehumidifying capacity, has the independent temperature and humidity regulation function, is beneficial to environmental protection, reduces the electric energy consumption and realizes the energy-saving operation.
Description
Technical Field
The invention relates to a combined air conditioning unit, in particular to a combined air conditioning unit for independently cooling and dehumidifying fresh air.
Background
Along with the increasing living standard of people, the requirements of people on living and working environments are higher and higher, and especially the requirements on fresh air and thermal comfort are more and more emphasized. At present, in places with higher requirements on temperature and humidity, such as hotels, high-grade office buildings, operating departments of hospitals and the like, the following defects exist in most air conditioning system forms:
⑴ when the split air conditioner or multi-split air conditioner is adopted, the air conditioning system can not provide fresh air, the fresh air is obtained by natural ventilation or simple mechanical ventilation by opening doors and windows, which not only causes the loss and waste of air conditioning cold energy and increases the energy consumption of the air conditioner, but also brings outdoor pollutants (such as dust, automobile exhaust, PM2.5, etc.) and noise into the room when the fresh air is directly fed into the room without treatment, and further, in humid seasons in southern areas, a large amount of fresh air which is not controlled and treated enters the room to aggravate the phenomenon of indoor moisture regain and mildew.
⑵ when the fan coil and the independent fresh air system or the full air system are adopted, usually one fresh air unit is combined with a plurality of fan coils or a plurality of circulating air-conditioning units for use, if some of the fan coils or the circulating air-conditioning units are shut down, in order to meet the requirements of other fan coils or circulating air-conditioning units, the fresh air unit still needs to continue to operate, which causes the phenomenon of 'big horse pulls a trolley', even if the system leaks air to cause the loss of fresh air, the system control is inflexible and complex, and the balance of the fresh air system is difficult to control.
The defects of the existing air conditioning system influence the indoor fresh air quality and thermal comfort quality of places such as hotels, high-grade office buildings, operating departments of hospitals and the like to a certain extent, so that a set of combined air conditioning unit capable of overcoming the defects is necessary to be designed to meet the requirements of the places.
Disclosure of Invention
The invention aims to provide a combined air conditioning unit for independently cooling and dehumidifying fresh air, which improves the cooling and dehumidifying effects, reduces the electric energy consumption, realizes energy-saving operation and independently regulates and controls the temperature and the humidity, can save the equipment arrangement space, and is flexibly and relatively independent in arrangement.
The object of the invention is achieved by the following technical measures: a combined air conditioning unit for independently cooling and dehumidifying fresh air is characterized by comprising a controller, an air conditioning unit cabinet body and an air conditioning outdoor unit, wherein the air conditioning unit cabinet body comprises a case and all components arranged in the case, the case is provided with an air inlet, an air supply outlet and a return air inlet communicated with an indoor environment, each component is sequentially provided with a primary filter, a refrigeration coil, a first heating coil, a first filter, a surface cooler, a second heating coil, an auxiliary heating source, a humidifier, a centrifugal fan and a second filter from the air inlet to the air supply outlet, the components divide the internal space of the case into a plurality of compartments, and the return air inlet is positioned between the first filter and the surface cooler; be equipped with compressor and condenser in the air condensing units, the import of compressor with refrigeration coil's exit linkage, the export of compressor respectively with the import of condenser the import of first heating coil with the exit linkage of second heating coil, the export of condenser respectively with the export of first heating coil with the exit linkage of second heating coil is in the same place, a rethread pipeline via throttling arrangement with refrigeration coil's access linkage to there is the refrigerant mobile circulation circuit in the formation.
The direct evaporation refrigeration coil is adopted to cool and dehumidify fresh air, so that the cooling and dehumidifying capacity of the air conditioning unit is enhanced, the air is heated through the first heating coil and the second heating coil by utilizing the condensation heat of the outdoor unit of the air conditioner, and the control of the temperature and the humidity of the supplied air is realized, so that the air conditioner has the function of independently regulating and controlling the temperature and the humidity. The two heating coils make full use of the condensation heat of the outdoor unit of the air conditioner, so that the emission of the condensation heat can be reduced, the environment is protected, the electric energy consumption is reduced, and the energy-saving operation is realized. The invention is a combination of a fresh air unit and an air conditioning unit, is flexible and relatively independent in arrangement, is suitable for places with higher requirements on temperature and humidity, is particularly suitable for places such as hotels, high-grade office buildings, operating departments of hospitals and the like, and can meet the requirements of users on fresh air and thermal comfort all year round.
In a preferred embodiment of the present invention, a first solenoid valve is provided on a connection pipe between an outlet of the compressor and an inlet of the first heating coil, a second solenoid valve is provided on a connection pipe between the outlet of the compressor and an inlet of the second heating coil, a third solenoid valve is provided on a connection pipe between the outlet of the compressor and an inlet of the condenser, and the first, second, and third solenoid valves are connected to a controller, respectively. The heat dissipating capacity through the first heating coil, the second heating coil and the condenser can be flexibly adjusted to meet the requirement of the invention for properly heating air.
In one embodiment of the present invention, the first filter is a medium efficiency filter, and the second filter is a medium efficiency filter or a sub-high efficiency filter.
As a preferred embodiment of the present invention, the compressor is a variable frequency compressor, and the refrigerating capacity of the refrigerating coil can be adjusted in time according to the load change of the system; the centrifugal fan is a variable frequency fan, and the air output of the combined air conditioning unit can be adjusted in real time according to the load change of the system.
In order to respond strongly to the requirements of energy saving and environmental protection, as a preferred embodiment of the present invention, the refrigerant is an environmental protection type refrigerant.
The auxiliary heating source is an electric heating device or a hot water coil or a steam coil. If a stable, reliable and available hot water source or steam source exists on site, the hot water coil or the steam coil is preferentially adopted for reheating, and if the hot water source or the steam coil does not exist, the electric heating device is selected for reheating.
In a preferred embodiment of the present invention, the surface air cooler is a chilled water coil, and chilled water is provided by an air conditioning cold source outside the combined air conditioning unit to cool the fresh air and return air mixed air.
The air inlet is provided with a first electric air valve, the air return inlet is provided with a second electric air valve, the air outlet is provided with a third electric air valve, and the first electric air valve, the second electric air valve and the third electric air valve are respectively connected with a controller. The air supply and return ratio and the air supply quantity of the combined air conditioning unit can be adjusted in real time by adjusting the opening of the electric air valve so as to adapt to the change of air supply requirements.
Compared with the prior art, the invention has the following remarkable advantages:
⑴ the invention has the function of cooling and dehumidifying fresh air separately, is a combination of fresh air handling unit and air conditioning unit, not only saves the space for equipment arrangement, but also has flexible and relatively independent arrangement.
⑵ the invention adopts the independently configured direct evaporation refrigeration coil to process the fresh air, is not affected by the conventional chilled water cold source, can obtain a lower temperature cold source, has the capability of deep dehumidification, ensures the rear section of the combined air conditioning unit to be in a dry working condition running state, and can further enlarge the cooling and dehumidifying range of the fresh air by adopting the variable frequency compressor.
⑶ the invention has two heating coils to make full use of the condensation heat of the air conditioner outdoor unit, which not only can reduce the emission of the condensation heat and is beneficial to environmental protection, but also can effectively avoid the cold and heat offset phenomenon and reduce the electric energy consumption by replacing the electric heating with the reheating of the condensation heat, and meanwhile, the heating coils are in the low temperature environment, which can greatly improve the energy efficiency of the air conditioner and realize the energy-saving operation.
⑷ the invention realizes the humidity control of the air supply by the refrigeration coil (or humidifier) and the temperature control of the air supply by the surface cooler (or heating coil and auxiliary heating source), therefore, the invention has the independent temperature and humidity control function.
⑸ the invention has multiple electric air valves to flexibly adjust the ratio of fresh air and return air and the air output, especially in the transition season, it can realize the full fresh air operation, at the same time, it adopts the frequency conversion centrifugal fan and the frequency conversion compressor, and can adjust the operation state of the machine set according to the end load change, thus the purpose of energy-saving operation is realized to the utmost extent under the condition of ensuring the indoor health and comfort.
⑹ the invention can realize three working modes of refrigeration and dehumidification, heating and humidification, and full fresh air operation, and can meet the demand of users for fresh air and heat comfort all the year round.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the composition structure of the present invention.
Detailed Description
As shown in fig. 1, the combined air conditioning unit for cooling and dehumidifying fresh air separately of the present invention comprises a controller, an air conditioning unit cabinet 1 and an air conditioning outdoor unit 2, wherein the controller electrically controls the whole unit, the air conditioning unit cabinet 1 comprises a cabinet and each component part arranged in the cabinet, the case is provided with an air inlet 4, an air return inlet 10 and an air supply outlet 17 which are communicated with the indoor environment, a primary filter 5, a refrigeration coil 6, a first heating coil 8, a first filter 9, a surface cooler 11, a second heating coil 12, an auxiliary heating source 13, a humidifier 14, a centrifugal fan 15 and a second filter 16 are sequentially arranged from the air inlet 4 to the air supply outlet 17, these components divide the interior of the cabinet into a plurality of compartments, and the return air inlet 10 is located between the first filter 9 and the surface air cooler 11 (the mixing section inside the cabinet 1 of the air conditioning unit). In this embodiment, the first filter 9 is a middle-effect filter, the second filter 16 is a middle-effect filter or a sub-high-effect filter, the centrifugal fan 15 is a variable frequency fan, and the surface air cooler is a chilled water coil, and chilled water is provided by an air conditioning cold source outside the combined air conditioning unit of the present invention to cool the fresh air and return air mixed air. The auxiliary heating source 13 may be an electric heating device or a hot water coil or a steam coil, and if there is a stable, reliable and available hot water source or steam source on site, the hot water coil or the steam coil is preferably used for reheating, and if not, the electric heating device is selected for reheating.
Be equipped with compressor 201 and condenser 202 in air condensing units 2, in this embodiment, compressor 201 is the inverter compressor, the import of compressor 201 and the exit linkage of refrigeration coil 6, the export of compressor 201 respectively with the import of condenser 202, the import of first heating coil 8 and the access connection of second heating coil 12, the export of condenser 202 respectively with the export of first heating coil 8 and the exit linkage of second heating coil 12 together, the rethread pipeline is in parallel state with the access connection of refrigeration coil 6 (make condenser 202, first heating coil 8 and second heating coil 12) via throttling arrangement 7, thereby form and have the refrigerant mobile circulation circuit in. In this embodiment, the refrigerant is an environmentally friendly refrigerant such as R134 a.
A first solenoid valve 18a is provided on a connection pipe between the outlet of the compressor 201 and the inlet of the first heating coil 8, a second solenoid valve 18b is provided on a connection pipe between the outlet of the compressor 201 and the inlet of the second heating coil 12, a third solenoid valve 18c is provided on a connection pipe between the outlet of the compressor 201 and the inlet of the condenser 202, and the first, second, and third solenoid valves are connected to a controller, respectively.
The air inlet 4 is provided with a first electric air valve 3a, the air return opening 10 is provided with a second electric air valve 3b, the air outlet 17 is provided with a third electric air valve 3c, and the first electric air valve, the second electric air valve and the third electric air valve are respectively connected with the controller.
The working principle of the invention is as follows: outdoor air A entering the fresh air handling unit cabinet body 1 through the air inlet 4 is firstly filtered through the primary filter 5, the filtered air is cooled and dehumidified through the refrigerating coil 6, wherein the flow rate and the evaporation temperature of a refrigerant flowing through the refrigerating coil 6 can be adjusted through the throttling device 7 and the compressor 201, so that the cooling and dehumidifying capacity of the refrigerating coil 6 on fresh air is adjusted, the cooled and dehumidified air is reheated and heated through the first heating coil 8 (preferentially utilizing the condensation heat of the air conditioning outdoor unit 2), then filtered through the first filter 9, then mixed with indoor air C from the air return port 10, the mixed air is sequentially cooled through the surface cooler 11, reheated and heated through the second heating coil 12 and the auxiliary heating source 13 (when the heating amount of the second heating coil 12 is insufficient, the auxiliary heating source 13 is started, when the heating amount of the second heating coil 12 is sufficient, redundant condensation heat is removed by the condenser 202), the humidifier 14 is humidified (the humidifier 14 is started in a time period when the mixed air needs to be humidified in winter or in transition seasons, and is not used together with the refrigeration coil 6 generally), then the mixed air B is formed after being filtered by the second filter 16 under the driving of the centrifugal fan 15, and finally the mixed air B is blown out from the air supply outlet 17, wherein the blown mixed air B can have proper temperature and humidity by adjusting the comprehensive heating amount of the second heating coil 12 and the auxiliary heating source 13.
The working process of the invention is as follows:
⑴ refrigeration dehumidification mode when refrigeration dehumidification is required, for example, during hot summer or wet season (e.g., southern area "return" season or rainy season), the present invention starts the refrigeration dehumidification mode, the compressor 201 and the surface cooler 11 are started, and the humidifier 14 is turned off.
The specific working process of the refrigeration and dehumidification mode of the invention is as follows: outdoor fresh air A enters the cabinet body 1 of the air conditioning unit through the air inlet 4, is firstly filtered through the primary filter 5, and then is cooled and dehumidified through the refrigerating coil 6, wherein the cooling and dehumidifying capacity of the refrigerating coil 6 can be adjusted through the throttling device 7 and the compressor 201, the cooled and dehumidified air is reheated and heated through the first heating coil 8, wherein the heating capacity of the first heating coil can be adjusted through the first electromagnetic valve 18a, then is filtered through the first filter 9, and then is mixed with indoor air C from the air return opening 10, the mixed air is firstly cooled through the surface air cooler 11, wherein the refrigerating capacity of the surface air cooler 11 can be adjusted through the first electric adjusting valve 19a, and then is reheated and heated through the second heating coil 12, wherein the reheating capacity of the second heating coil 12 can be adjusted through the second electromagnetic valve 18b (when the heating capacity of the second heating coil 12 is insufficient, the auxiliary heating source 13 is activated; when the heating amount of the second heating coil 12 is sufficient, the excessive condensation heat is removed by the condenser 202), then the excessive condensation heat passes through the humidifier 14 (not working at this time), then the excessive condensation heat is filtered by the second filter 16 under the driving of the centrifugal fan 15 to become mixed air B, and finally the mixed air B is blown out from the air supply outlet 17, so that the air sent into the room meets the requirements of fresh air and thermal comfort.
In the cooling and dehumidifying mode, the throttle device 7 and the compressor 201 can adjust the refrigerant flow rate and the evaporation temperature; the first solenoid valve 18a, the second solenoid valve 18b, and the third solenoid valve 18c are used to comprehensively regulate the flow of refrigerant through the first heating coil 8, the second heating coil 12, and the condenser 202; the first electric control valve 19a is used for adjusting the flow rate of the chilled water; the first electric air valve 3a, the second electric air valve 3b and the third electric air valve 3c are used for adjusting the fresh air and return air ratio and the air supply quantity.
⑵ heating and humidifying mode when heating and humidifying are needed, such as in cold winter, the invention starts the heating and humidifying mode, the compressor 201 and the surface cooler 11 are closed, and the auxiliary heating source 13 and the humidifier 14 are opened.
The specific working process of the heating and humidifying mode of the invention is as follows: outdoor fresh air A enters the cabinet body 1 of the air conditioning unit through the air inlet 4, is firstly filtered through the primary filter 5, then passes through the refrigerating coil 6 (not working at this time) and the first heating coil 8 (not working at this time), then is filtered through the first filter 9, and then is mixed with indoor air C from the air return port 10, the mixed air firstly passes through the surface cooler 11 (not working at this time) and the second heating coil 12 (not working at this time), and then is heated and warmed through the auxiliary heating source 13, if a stable, reliable and available hot water source or steam source exists on site, the auxiliary heating source 13 preferentially adopts hot water or steam for heating, if not, an electric heating device is selected for heating, and the heating amount is all adjustable, then is humidified through the humidifier 14, the humidification mode can be selected according to requirements, and the humidification amount can be adjusted through the second electric adjusting valve 19b, and then, the air is filtered by a second filter 16 under the driving of a centrifugal fan 15 to form mixed air B, and finally, the mixed air B is blown out from an air supply outlet 17, so that the air sent into the room meets the requirements of fresh air and thermal comfort.
In the heating and humidifying mode, the second electric regulator valve 19b is used to regulate the amount of humidification; the first electric air valve 3a, the second electric air valve 3b and the third electric air valve 3c are used for adjusting the fresh air and return air ratio and the air supply quantity.
⑶ full fresh air operation, i.e. at other time intervals than the above-mentioned season, there is no need for cooling dehumidification and heating humidification, and therefore the compressor 201, the surface air cooler 11, the auxiliary heating source 13 and the humidifier 14 are all turned off, while the second electropneumatic damper 3b is turned off.
The specific working process of the full fresh air operation of the invention is as follows: outdoor new trend A gets into air conditioning unit cabinet body 1 through air intake 4 in, at first filter through primary filter 5, loop through refrigerating coil 6 again (out of work this moment) and first heating coil 8 (out of work this moment), then filter through first filter 9, loop through surface cooler 11 again afterwards (out of work this moment), second heating coil 12 (out of work this moment), auxiliary heating source 13 (out of work this moment), humidifier 14 (out of work this moment), later under centrifugal fan 15's drive, obtain clear new trend B after second filter 16 filters, blow off new trend B from supply-air outlet 17 at last, ensure to send into indoor new trend and satisfy the requirement.
In this fresh air operation mode, the first and third electric dampers 3a and 3c are used to adjust the fresh air volume.
The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the present invention can be modified, substituted or changed in other various forms without departing from the basic technical idea of the present invention.
Claims (8)
1. A combined air conditioning unit for independently cooling and dehumidifying fresh air is characterized by comprising a controller, an air conditioning unit cabinet body and an air conditioning outdoor unit, wherein the air conditioning unit cabinet body comprises a case and all components arranged in the case, the case is provided with an air inlet, an air supply outlet and a return air inlet communicated with an indoor environment, each component is sequentially provided with a primary filter, a refrigeration coil, a first heating coil, a first filter, a surface cooler, a second heating coil, an auxiliary heating source, a humidifier, a centrifugal fan and a second filter from the air inlet to the air supply outlet, the components divide the internal space of the case into a plurality of compartments, and the return air inlet is positioned between the first filter and the surface cooler; be equipped with compressor and condenser in the air condensing units, the import of compressor with refrigeration coil's exit linkage, the export of compressor respectively with the import of condenser the import of first heating coil with the exit linkage of second heating coil, the export of condenser respectively with the export of first heating coil with the exit linkage of second heating coil is in the same place, a rethread pipeline via throttling arrangement with refrigeration coil's access linkage to there is the refrigerant mobile circulation circuit in the formation.
2. The combined air conditioning unit for separately cooling and dehumidifying fresh air according to claim 1, wherein: the export of compressor with be equipped with first solenoid valve on the connecting pipeline between the import of first heating coil the export of compressor with be equipped with the second solenoid valve on the connecting pipeline between the import of second heating coil the export of compressor with be equipped with the third solenoid valve on the connecting pipeline between the import of condenser, first, second and third solenoid valve are connected with the controller respectively.
3. The combined air conditioning unit for separately cooling and dehumidifying fresh air according to claim 2, wherein: the first filter is a medium-efficiency filter, and the second filter is a medium-efficiency filter or a sub-high-efficiency filter.
4. The combined air conditioning unit for separately cooling and dehumidifying fresh air according to claim 3, wherein: the compressor is a variable frequency compressor, and the centrifugal fan is a variable frequency fan.
5. The combined air conditioning unit for separately cooling and dehumidifying fresh air according to claim 4, wherein: the refrigerant is an environmentally friendly refrigerant.
6. The combined air conditioning unit for separately cooling and dehumidifying fresh air according to claim 5, wherein: the auxiliary heating source is an electric heating device or a hot water coil or a steam coil.
7. The combined air conditioning unit for separately cooling and dehumidifying fresh air according to claim 6, wherein: the surface air cooler is a freezing water coil pipe which is used for providing freezing water by an air conditioner cold source outside the combined air conditioning unit.
8. The combined air conditioning unit for independently cooling and dehumidifying fresh air according to any one of claims 1 to 7, comprising: the air inlet is provided with a first electric air valve, the air return inlet is provided with a second electric air valve, the air outlet is provided with a third electric air valve, and the first electric air valve, the second electric air valve and the third electric air valve are respectively connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010196862.1A CN111442448A (en) | 2020-03-19 | 2020-03-19 | Combined air conditioning unit for independently cooling and dehumidifying fresh air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010196862.1A CN111442448A (en) | 2020-03-19 | 2020-03-19 | Combined air conditioning unit for independently cooling and dehumidifying fresh air |
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| Publication Number | Publication Date |
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| CN111442448A true CN111442448A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010196862.1A Pending CN111442448A (en) | 2020-03-19 | 2020-03-19 | Combined air conditioning unit for independently cooling and dehumidifying fresh air |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112470940A (en) * | 2020-10-15 | 2021-03-12 | 浙江理工大学 | Low-resistance energy-saving air conditioning device for laboratory animal house |
| CN113739556A (en) * | 2021-07-21 | 2021-12-03 | 广东申菱环境系统股份有限公司 | Heat pump drying unit and control method thereof |
| CN114811763A (en) * | 2022-04-28 | 2022-07-29 | 南京东达智慧环境能源研究院有限公司 | Energy-saving air conditioning box capable of realizing accurate control of high, medium and low temperature and humidity |
| CN114877409A (en) * | 2022-05-10 | 2022-08-09 | 宁波奥克斯电气股份有限公司 | Air conditioner fresh air system, air conditioner and fresh air auxiliary temperature adjusting method |
-
2020
- 2020-03-19 CN CN202010196862.1A patent/CN111442448A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112470940A (en) * | 2020-10-15 | 2021-03-12 | 浙江理工大学 | Low-resistance energy-saving air conditioning device for laboratory animal house |
| CN113739556A (en) * | 2021-07-21 | 2021-12-03 | 广东申菱环境系统股份有限公司 | Heat pump drying unit and control method thereof |
| CN113739556B (en) * | 2021-07-21 | 2023-01-10 | 广东申菱环境系统股份有限公司 | Heat pump drying unit and control method thereof |
| CN114811763A (en) * | 2022-04-28 | 2022-07-29 | 南京东达智慧环境能源研究院有限公司 | Energy-saving air conditioning box capable of realizing accurate control of high, medium and low temperature and humidity |
| CN114877409A (en) * | 2022-05-10 | 2022-08-09 | 宁波奥克斯电气股份有限公司 | Air conditioner fresh air system, air conditioner and fresh air auxiliary temperature adjusting method |
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