CN113864905A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN113864905A CN113864905A CN202111214656.XA CN202111214656A CN113864905A CN 113864905 A CN113864905 A CN 113864905A CN 202111214656 A CN202111214656 A CN 202111214656A CN 113864905 A CN113864905 A CN 113864905A
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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
- F24F11/62—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
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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
- F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
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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
- 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
- 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
- F24F3/1405—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 in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
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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
- F24F3/16—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 purification, e.g. by filtering; by sterilisation; by ozonisation
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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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
- F24F7/003—Ventilation in combination with air cleaning
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Central Air Conditioning (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to an air conditioner, and belongs to the technical field of air conditioners. The system comprises a fresh air processor, a cooling and heating medium water pipe, a dry coil pipe, a cold machine, a three-way valve I, a three-way valve II, a temperature detection system and a temperature and humidity adjusting system; the cold machine is respectively connected with a first cold and heat medium inlet pipe and a first cold and heat medium outlet pipe which are arranged on the fresh air processor through a first three-way valve; a second three-way valve is arranged at the downstream of the joint of the first refrigerant and heat medium outlet pipe; the second three-way valve is respectively connected with a second cooling medium inlet pipe and a second cooling medium outlet pipe which are arranged on the dry coil pipe, and the joint is connected with the cold machine; the air conditioner is provided with a temperature detection system and a temperature and humidity adjusting system. The invention processes the energy consumption of dehumidification and cooling through the same refrigerator and refrigerant water pipeline system, and performs gradient temperature difference design on the refrigerant and hot water pipelines, thereby reducing the manufacturing cost and the occupied space of equipment, and realizing the miniaturization, the household application and the industrialization of the temperature and humidity independent control air conditioner.
Description
Technical Field
The invention relates to an air conditioner, and belongs to the technical field of air conditioners.
Background
In the prior art, a common air conditioner adopts heat-humidity coupling treatment for air, and dehumidification treatment is carried out while the air is cooled, so that certain parameter in the temperature or humidity is out of control easily when the heat-humidity ratio changes, and the change of the temperature and the humidity cannot be accurately controlled. Secondly, the ordinary air conditioner can produce the condensate water when refrigerating, breeds the bacterium easily, brings the health hidden danger. In addition, because the common air conditioner adopts the heat-moisture coupling treatment, the refrigerating capacity required for dehumidification is larger when fresh air is added, the common air conditioner generally does not have the fresh air function, and if the fresh air is required, a fresh air system which is mutually independent with the air conditioner is additionally added, so the price is higher. Traditional humiture independent control air conditioner, adopt disconnect-type independent control to temperature and humidity, can avoid above problem, its dehumidification mainly realizes through modes such as runner dehumidification, solution dehumidification, when adopting compressor unit cooling dehumidification, often still need be responsible for the cold water set of preparation high temperature refrigerant water for dry coil pipe configuration another set, and special dehumidification equipment such as runner dehumidification, solution dehumidification need heat regeneration to the dehydrating agent, the investment is high, the equipment pipeline is complicated, it is big to occupy the computer lab space, the operation power consumption is many, compressor unit cooling dehumidification has increased the compressor quantity, the cost of air conditioning system has additionally been increased, energy consumption, occupation space. Therefore, the independent temperature and humidity air conditioning system is usually used in some special places or public places requiring a large amount of processing of cooling loads, each set of independent temperature and humidity air conditioning system is also specially designed for the served places, and common household users cannot directly purchase the products from the market. Therefore, there is a need in the art to solve the above problems and to obtain a low-cost and space-saving independent temperature and humidity control air conditioner, which can meet the high requirements of the household users on the air quality.
Disclosure of Invention
The invention aims to solve the technical problems of how to improve the dehumidification and cooling energy consumption mode of the existing independent temperature and humidity control air conditioner, reduce the manufacturing cost and the occupied space, and miniaturize, household and industrialize the independent temperature and humidity air conditioner so as to meet the high requirement of a household user on the air quality.
In order to solve the problems, the technical scheme adopted by the invention is to provide an air conditioner, which comprises a fresh air processor, a cooling and heating medium water pipe, a dry coil pipe, a cold machine (heat pump type), a first three-way valve, a second three-way valve, a temperature detection system and a temperature and humidity adjusting system, wherein the fresh air processor is connected with the fresh air processor; the fresh air processor is provided with a first cooling medium inlet pipe and a first cooling medium outlet pipe; the cold machine is respectively connected with a first cooling and heating medium inlet pipe and a first cooling and heating medium outlet pipe of the fresh air processor through a first three-way valve; the joint with the first cooling and heating medium outlet pipe is set as a first joint; a second three-way valve is arranged on the cold and heat medium water pipe at the downstream of the first joint; the dry coil pipe is provided with a second cooling and heating medium inlet pipe and a second cooling and heating medium outlet pipe; the cold and hot medium water pipe is respectively connected with a cold and hot medium inlet pipe II and a cold and hot medium outlet pipe II through a three-way valve II, the joint of the cold and hot medium inlet pipe II and the cold and hot medium outlet pipe II is set as a joint II, and a pipeline at the downstream of the joint II is connected with the cold machine; the air conditioner is internally provided with a temperature detection system and a temperature and humidity adjusting system, the temperature detection system is connected with the temperature and humidity adjusting system, and the temperature and humidity adjusting system is connected with the cold machine, the fresh air processor, the first three-way valve and the second three-way valve.
Preferably, an evaporator is arranged in the cooler; a dehumidifying coil is arranged in the fresh air processor; the evaporator is connected with the dehumidification coil sequentially through a first three-way valve and a first cold and heat medium inlet pipe; the evaporator is connected with the first refrigerant outlet pipe through the first three-way valve.
Preferably, a heater is arranged between the first connecting part and the second three-way valve and is connected with a temperature and humidity adjusting system.
Preferably, the cold machine and the fresh air processor are arranged outdoors, and the dry coil pipe is arranged indoors.
Preferably, the cold machine is arranged outdoors, and the fresh air processor and the dry coil pipe are arranged indoors; the cold machine is arranged as one machine, and the fresh air processor and the dry coil pipe are arranged as a plurality of machines.
Preferably, a preheating coil is arranged in the fresh air processor; the cold machine is of a heat pump type, the refrigerant side is switched into a heat pump mode through a four-way reversing valve, a condenser is arranged in the heat pump, and the condenser is connected with the preheating coil pipe through a three-way valve I and a cold and hot medium inlet pipe I in sequence; the condenser is connected with the first cooling and heating medium outlet pipe through the first three-way valve.
Preferably, the cooler (heat pump type) is arranged outdoors, and the preheating coil and the dehumidifying coil are arranged in the same coil.
Preferably, a humidifying module is arranged in the fresh air processor and connected with a temperature and humidity adjusting system.
Preferably, the temperature detection system comprises a plurality of temperature sensors; the first three-way valve is provided with a first temperature sensor for measuring t1, the second three-way valve is provided with a second temperature sensor for measuring t2, the outlet of the dehumidifying coil or the preheating coil is provided with a third temperature sensor for measuring t1 ', and the second connection part is provided with a fourth temperature sensor for measuring t 2'.
Preferably, during refrigeration, the temperature t1 of low-temperature cold water for dehumidification by the refrigerator is set to be 0 ℃ < t1< fresh air dew point temperature, the water inlet temperature t2 of the dry coil is set to be t2> indoor air dew point temperature, the water outlet temperature t1 'of the dehumidification coil is set to be t 2' of the dry coil, and the water outlet temperature t1 '< t2< t 2'; during heating, the temperature t1 of high-temperature hot water for preheating by the heat pump is set to be t1> fresh air temperature, the water inlet temperature t2 of the dry coil is set to be t2> indoor air temperature, t1 ' is set to be outlet water temperature of the preheating coil, and t2 ' < t2< t1 '.
Compared with the prior art, the invention has the following beneficial effects:
the invention improves the energy consumption mode of dehumidification and cooling of the existing temperature and humidity independent control air conditioner, processes the energy consumption of dehumidification and cooling through the same refrigerator and a refrigerant water pipeline system, saves a dehumidification system and a dehumidification material regeneration system which are commonly used in the temperature and humidity air conditioning system, can realize miniaturization, household and industrialization of the temperature and humidity independent control air conditioner on the premise of reducing purchase cost and occupied space of equipment, adds a fresh air function to the household air conditioner, and meets the high standard requirements of household users on the control precision, sanitary condition and air quality of the household air conditioner.
Drawings
FIG. 1 is a system schematic of an embodiment of the present invention;
reference numerals: 1. a fresh air processor; 2. a dry coiled pipe; 3. a chiller (heat pump type); 4. a first three-way valve; 5. a second three-way valve; 6. a first cooling and heating medium inlet pipe; 7. a first cooling and heating medium outlet pipe; 8. a second heating medium inlet pipe; 9. a second heating medium outlet pipe; 10. a cooling and heating medium water pipe; 11. a first connecting part; 12. a second connecting part; 13. a heater.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:
as shown in fig. 1, the technical scheme adopted by the invention is to provide an air conditioner, which comprises a fresh air processor 1, a cold and hot medium water pipe 10, a dry coil pipe 2, a cold machine (heat pump type) 3, a three-way valve I4, a three-way valve II 5, a temperature detection system and a temperature and humidity adjusting system; the fresh air processor 1 is provided with a cooling and heating medium inlet pipe 6 and a cooling and heating medium outlet pipe 7; the cold machine 3 is respectively connected with a cold and hot medium inlet pipe I6 and a cold and hot medium outlet pipe I7 of the fresh air processor 1 through a three-way valve I4; the joint of the cold and hot medium outlet pipe I7 is a joint I11; a second three-way valve 5 is arranged on the cold and heat medium water pipe 10 at the downstream of the first joint 11; the dry coil pipe 2 is provided with a second cooling medium inlet pipe 8 and a second cooling medium outlet pipe 9; the cold and hot medium water pipe 10 is respectively connected with a cold and hot medium inlet pipe II 8 and a cold and hot medium outlet pipe II 9 through a three-way valve II 5, the joint of the cold and hot medium inlet pipe II 9 and the cold and hot medium outlet pipe II 12 is set as a joint II 12, and a pipeline at the downstream of the joint II 12 is connected with the cold machine 3; the air conditioner is internally provided with a temperature detection system and a temperature and humidity adjusting system, the temperature detection system is connected with the temperature and humidity adjusting system, and the temperature and humidity adjusting system is connected with the cold machine 3, the fresh air processor 1, the first three-way valve 4 and the second three-way valve 5. An evaporator is arranged in the cold machine 3; a dehumidifying coil is arranged in the fresh air processor 1; the evaporator is connected with the dehumidification coil sequentially through a three-way valve I4 and a cold and heat medium inlet pipe I6; the evaporator is connected with a cold and hot medium outlet pipe I7 through a three-way valve I4. A heater 13 is arranged between the first connecting part 11 and the second three-way valve 5, and the heater 13 is connected with a temperature and humidity adjusting system. The cold machine 3 and the fresh air processor 1 are arranged outdoors, and the dry coil pipe 2 is arranged indoors. Or the cold machine 3 is arranged outdoors, and the fresh air processor 1 and the dry coil pipe 2 are arranged indoors; the cold machine 3 is provided with one fresh air processor 1 and the dry coil pipe 2 are provided with a plurality of cold machines. The cold machine (heat pump type) 3 is arranged outdoors, a condenser is arranged in the heat pump 3, and a preheating coil is arranged in the fresh air processor 1; the condenser is connected with the preheating coil pipe sequentially through a three-way valve I4 and a cold and hot medium inlet pipe I6 in the heat pump mode; the condenser is connected with a cold and hot medium outlet pipe I7 through a three-way valve I4. The preheating coil and the dehumidifying coil are set to be the same coil. The fresh air processor 1 is internally provided with a humidifying module which is connected with a temperature and humidity adjusting system. The temperature detection system comprises a plurality of temperature sensors; the first three-way valve 4 is provided with a first temperature sensor for measuring t1, the second three-way valve 5 is provided with a second temperature sensor for measuring t2, the outlet of the dehumidifying coil or the preheating coil is provided with a third temperature sensor for measuring t1 ', and the second connection part 12 is provided with a fourth temperature sensor for measuring t 2'. During refrigeration, the temperature t1 of low-temperature cold water for dehumidification prepared by the cold machine 3 is set to be 0 ℃ and less than t1 and less than fresh air dew point temperature, the water inlet temperature t2 of the dry coil 2 is set to be t2 and more than indoor air dew point temperature, the t1 'is set to be the water outlet temperature of the dehumidification coil, the t 2' is set to be the water outlet temperature of the dry coil, and the t1 '< t2 and less than t 2'; during heating, the temperature t1 of high-temperature hot water for preheating by the heat pump 3 is set to be t1> fresh air temperature, the temperature t2 of inlet water of the dry coil 2 is set to be t2> indoor air temperature, t1 ' is set to be outlet water temperature of the preheating coil, and t2 ' < t2< t1 '.
As shown in figure 1, the invention adopts a cold machine (heat pump type), and uses a cold and hot medium water pipeline to be connected with a fresh air processor 1 and a dry coil pipe 2 in series, so as to carry out gradient temperature difference design on the cold and hot medium water pipeline. In summer, low-temperature cold water is prepared for dehumidifying fresh air, and the cold water which is subjected to primary temperature rise after dehumidification is introduced into the dry coil pipe 2 to perform heat exchange with air so as to cool the indoor. In winter, high-temperature hot water is prepared to preheat fresh air, and the preheated and cooled hot medium water is introduced into the dry coil 2 to exchange heat with air so as to perform indoor heating.
The water outlet of the evaporator of the cold machine 3 is divided into two paths, one path is connected to the dehumidifying coil of the fresh air processor 1 to dehumidify air, and the other path does not enter the fresh air processor 1 and is mixed with the refrigerant water which is heated after dehumidification.
The mixed cold water is heated by the electric heater 13 to meet the water inlet temperature requirement of the dry coil pipe 2.
The high-temperature cold water after temperature rise is divided into two paths, one path enters the dry coil 2 to eliminate indoor cold load, and the other path does not pass through the dry coil 2, is mixed with the refrigerant water outlet water of the dry coil 2, then returns to the side of the cooler 3 to be cooled and cooled, and is circulated for the next time.
The equipment adopts an air-cooled heat pump machine, refrigeration and heating can be independently finished, and external cooling water systems, boilers and other external heat sources are not needed.
The cold machine 3 is used for preparing low-temperature cold water for dehumidification, the temperature t1 ℃ is lower than the fresh air dew point temperature, and the water inlet temperature t2 ℃ of the dry coil pipe 2 is higher than the indoor air dew point temperature. After being cooled and dehumidified, the fresh air is heated to the indoor design temperature through the reheating module, and only bears the fresh air load but not the indoor cold load.
The air conditioner is integrated with a fresh air processor 1, and can process the cleanliness and the temperature and humidity of fresh air.
The air conditioner can be designed into a household one-to-many air conditioner, one cold machine is used for preparing cold water for the dry coil pipes 2 of a plurality of rooms, meanwhile, the fresh air processor 1 is used for processing air required by the plurality of rooms in a centralized manner, and the air supply side is connected with air pipes to send the air to each room.
The air conditioner can integrate the refrigerator 3 and the fresh air machine 1 into an outdoor machine, and only the dry coil pipe 2 or the radiation plate is arranged indoors. The new fan 1 and the dry coil pipe 2 can be integrated into an indoor unit only by using the refrigerating machine 3 as an outdoor unit, and particularly, when a refrigerating machine with one dragging more terminal devices is adopted for a multi-room condition, the individual requirements of users in different rooms can be better met by using the indoor unit integrated with the new fan 1 and the dry coil pipe 2.
The working principle of the invention is that a refrigerator (heat pump type) is adopted to carry out gradient temperature difference design on a cold and hot medium water pipeline, and the dehumidified high-temperature cold medium water is used for treating indoor cold load borne by the dry coil pipe 2. During the refrigeration operating mode, make low temperature refrigerant water flow through fresh air processing unit 1 and dry coil pipe 2 in proper order, utilize low temperature refrigerant water to dehumidify the air earlier, utilize the high temperature refrigerant water that the processing air later heaied up to cool down indoor dry coil pipe 2 again, utilize the gradient difference in temperature design, realize once refrigerating and accomplish the independent processing of air humidity and temperature simultaneously. When the working condition heats, make high temperature heat medium water flow through fresh air treatment unit 1 and dry coil pipe 2 in proper order, utilize high temperature refrigerant water to preheat the air earlier, this process can avoid the new trend directly to get into when indoor, its temperature is less than the dew point temperature of indoor air and leads to indoor production to congeal water, and the heat medium water of utilizing the cooling behind the processing new trend heats up indoor dry coil pipe 2, eliminates indoor heat load.
Embodiments of the present invention are described below with reference to the drawings.
During refrigeration, refrigerant water at t1 ℃ for system dehumidification is prepared at the evaporator side of the cold machine, the refrigerant water at t1 ℃ before entering the fresh air machine is divided into two paths, one path enters the dehumidification coil of the fresh air processing unit 1 to cool and dehumidify air to reach set indoor humidity, the temperature of the water discharged from the dehumidification coil is raised to t1 '° c, the other path does not enter the fresh air machine, and is mixed with cold water at t 1' ° c and then heated to t2 ℃ by the electric heater 13. And then the cold water at t2 ℃ is divided into two paths, one path enters the dry coil 2 to carry out heat exchange with the air to process the indoor cold load, the other path does not enter the dry coil 2, is mixed with the refrigerant water at the water outlet temperature of the dry coil 2 of t 2' ° C, returns to the side of the cooler to carry out heat exchange with the evaporator, and enters the next refrigeration cycle after being cooled to t1 ℃.
And for the change of the dehumidification capacity caused by the change of the sucked fresh air, the water quantity of the refrigerant entering the dehumidification coil is increased or reduced through a first three-way valve 4 to adjust. For the indoor cold load change, the quantity of the refrigerant water entering the dry coil pipe 2 is increased or reduced through the three-way valve 5 to adjust the indoor cold load change.
The condenser of the refrigerator adopts air cooling and discharges condensation heat to the outside.
During heating, the heat pump condenser side produces t1 ℃ heat medium water for preheating fresh air, the t1 ℃ heat medium water is divided into two paths before entering a fresh air fan, one path enters a preheating coil (shared with a dehumidifying coil) of a fresh air processing unit 1 to preheat the fresh air to reach a set preheating temperature, the outlet water of the preheating coil is heated to t1 '° C, the other path does not enter the fresh air processor and is mixed with t 1' ° C hot water to reach the inlet water temperature t2 ℃ of a dry coil 2. And then dividing t2 ℃ hot water into two paths, wherein one path of hot water enters the dry coil 2 to carry out heat exchange with air to process the heat load in the room, the other path of hot water does not enter the dry coil 2, is mixed with the hot medium water with the water outlet temperature of the dry coil 2 of t 2' ° C, returns to the side of the heat pump to carry out heat exchange with the condenser, and enters the next heating cycle after the temperature is raised to t1 ℃.
The humidification quantity change caused by the change of the sucked fresh air is adjusted by a humidification module in the fresh air fan. And for the preheating quantity change caused by the change of the sucked fresh air, the preheating quantity is adjusted by increasing or reducing the quantity of the heat medium water entering the preheating coil through the first three-way valve 4. For indoor heat load change, the amount of the heat medium water entering the dry coil 2 is increased or decreased through the second three-way valve 5 to adjust.
In the heating process, the heat pump evaporator adopts air for heat exchange, and heat required by evaporation is absorbed from the air.
The key point of the technical scheme is that in the air conditioner with independent temperature and humidity control, gradient temperature difference design is carried out on cold and hot medium water pipelines, and the same refrigerating machine and pipeline system are used, so that the miniaturization, the household application and the industrialization of the air conditioner system with completely independent temperature and humidity control are realized on the premise of saving a complex dehumidification equipment system, and the high-standard requirement of a household user on the air quality is met.
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (10)
1. An air conditioner characterized in that: the system comprises a fresh air processor, a cooling and heating medium water pipe, a dry coil pipe, a cold machine, a three-way valve I, a three-way valve II, a temperature detection system and a temperature and humidity adjusting system; the fresh air processor is provided with a first cooling medium inlet pipe and a first cooling medium outlet pipe; the cold machine is respectively connected with a first cooling and heating medium inlet pipe and a first cooling and heating medium outlet pipe of the fresh air processor through a first three-way valve; the joint with the first cooling and heating medium outlet pipe is set as a first joint; a second three-way valve is arranged on the cold and heat medium water pipe at the downstream of the first joint; the dry coil pipe is provided with a second cooling and heating medium inlet pipe and a second cooling and heating medium outlet pipe; the cold and hot medium water pipe is respectively connected with a cold and hot medium inlet pipe II and a cold and hot medium outlet pipe II through a three-way valve II, the joint of the cold and hot medium inlet pipe II and the cold and hot medium outlet pipe II is set as a joint II, and a pipeline at the downstream of the joint II is connected with the cold machine; the air conditioner is internally provided with a temperature detection system and a temperature and humidity adjusting system, the temperature detection system is connected with the temperature and humidity adjusting system, and the temperature and humidity adjusting system is connected with the cold machine, the fresh air processor, the first three-way valve and the second three-way valve.
2. An air conditioner according to claim 1, wherein: an evaporator is arranged in the cold machine; a dehumidifying coil is arranged in the fresh air processor; the evaporator is connected with the dehumidification coil sequentially through a first three-way valve and a first cold and heat medium inlet pipe; the evaporator is connected with the first refrigerant outlet pipe through the first three-way valve.
3. An air conditioner according to claim 2, wherein: and a heater is arranged between the first connecting part and the second three-way valve and is connected with a temperature and humidity adjusting system.
4. An air conditioner according to claim 3, wherein: the cold machine and the fresh air processor are arranged outdoors, and the dry coil pipe is arranged indoors.
5. An air conditioner according to claim 3, wherein: the cold machine is arranged outdoors, and the fresh air processor and the dry coil pipe are arranged indoors; the cold machine is arranged as one machine, and the fresh air processor and the dry coil pipe are arranged as a plurality of machines.
6. An air conditioner according to claim 2, wherein: a preheating coil is arranged in the fresh air processor; the cold machine is of a heat pump type, the refrigerant side is switched into a heat pump mode through a four-way reversing valve, a condenser is arranged in the heat pump, and the heat pump condenser is connected with the preheating coil pipe sequentially through a three-way valve I and a cold and hot medium inlet pipe I; the condenser is connected with the first cooling and heating medium outlet pipe through the first three-way valve.
7. An air conditioner according to claim 6, wherein: the heat pump type cold machine is arranged outdoors, and the preheating coil and the dehumidifying coil are arranged into the same coil.
8. An air conditioner according to claim 7, wherein: the fresh air processor is internally provided with a humidifying module, and the humidifying module is connected with a temperature and humidity adjusting system.
9. An air conditioner according to claim 1, wherein: the temperature detection system comprises a plurality of temperature sensors; the first three-way valve is provided with a first temperature sensor for measuring t1, the second three-way valve is provided with a second temperature sensor for measuring t2, the outlet of the dehumidifying coil or the preheating coil is provided with a third temperature sensor for measuring t1 ', and the second connection part is provided with a fourth temperature sensor for measuring t 2'.
10. An air conditioner according to claim 7, wherein: during refrigeration, the temperature t1 of low-temperature cold water for dehumidification of the heat pump type refrigerator is set to be 0 ℃ and less than t1 and less than fresh air dew point temperature, the water inlet temperature t2 of the dry coil is set to be t2 and more than indoor air dew point temperature, the water outlet temperature t1 'of the dehumidification coil is set to be t 2', the water outlet temperature t1 '< t2 and less than t 2'; during heating, the temperature t1 of high-temperature hot water for preheating by the heat pump is set to be t1> fresh air temperature, the water inlet temperature t2 of the dry coil is set to be t2> indoor air temperature, t1 ' is set to be outlet water temperature of the preheating coil, and t2 ' < t2< t1 '.
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| CN202111214656.XA CN113864905B (en) | 2021-10-19 | 2021-10-19 | Air conditioner |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001324193A (en) * | 2000-05-15 | 2001-11-22 | Karaushi Takeo | Device and method for introducing fresh air |
| CN202719696U (en) * | 2012-06-08 | 2013-02-06 | 吕智 | Dehumidification and regeneration type air treating machine set with rotating wheel driven by heat pump |
| CN110939995A (en) * | 2019-12-18 | 2020-03-31 | 珠海格力电器股份有限公司 | Air conditioning system |
-
2021
- 2021-10-19 CN CN202111214656.XA patent/CN113864905B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001324193A (en) * | 2000-05-15 | 2001-11-22 | Karaushi Takeo | Device and method for introducing fresh air |
| CN202719696U (en) * | 2012-06-08 | 2013-02-06 | 吕智 | Dehumidification and regeneration type air treating machine set with rotating wheel driven by heat pump |
| CN110939995A (en) * | 2019-12-18 | 2020-03-31 | 珠海格力电器股份有限公司 | Air conditioning system |
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| CN113864905B (en) | 2023-04-21 |
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