CN202126035U - Heat recovery type heat pump air conditioning system - Google Patents
Heat recovery type heat pump air conditioning system Download PDFInfo
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- CN202126035U CN202126035U CN 201120154532 CN201120154532U CN202126035U CN 202126035 U CN202126035 U CN 202126035U CN 201120154532 CN201120154532 CN 201120154532 CN 201120154532 U CN201120154532 U CN 201120154532U CN 202126035 U CN202126035 U CN 202126035U
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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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
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Abstract
The utility model relates to a heat recovery type heat pump air conditioning system which comprises an air handling unit and a heat pump unit and is characterized by also comprising a subcooler, two ports of the third medium of the subcooler are respectively connected with two ports of fresh air heat medium exchange equipment and a connecting line is provided with a second circulating pump; the first port of the first medium of the subcooler is connected with the first port of a throttling device; four check valves are firstly divided into two groups for connection in series and then in parallel; the second port of the throttling device is connected with the fourth node of a check valve loop; the second port of the first medium of the subcooler is connected with a second node; the second port of the first medium of an indoor heat exchanger is connected with a first node; and the second port of the first medium of an outdoor heat exchanger is connected with a third node. The total load burden on a condenser is small, the heat energy can be utilized effectively and the energy saving effect is good.
Description
Technical field
The utility model relates to the air conditioner refrigerating technical field, specifically refers to a kind of heat reclamation type heat pump type air conditioning system.
Background technology
The raising day by day of Along with people's living standard, also increasingly high to the requirement of environmental amenity property, central air conditioner system has been played the part of the key player in all kinds of buildings.In common comfortableness central air-conditioning system, the primary retirn air system is most typical air-conditioning system.During winter operation, the primary retirn air system is meant that outdoor new wind mixes with indoor return air, is heated then, humidification, reaches ventilation state and sends into indoor.Because outdoor new wind-warm syndrome degree is very low, need expend very big heat during heating and just can reach wind pushing temperature.Notification number is the earth source heat pump air conditioner that the utility model patent of CN201503099U provides the new wind of a kind of preheating, and the new wind that gets into mixing chamber is used the well water preheating earlier, has increased new wind enthalpy, thereby can reduce new wind and the mixed heat that adds of return air.It is the energy-conservation a kind of important means of this type of air-treatment unit that the new wind of primary retirn air system is carried out preheating.During summer operation, the primary retirn air system is mixed outdoor new wind with indoor return air, it is handled apparatus dew point, carries out heat with heater again, reach ventilation state make a gift to someone indoor, the wherein electrical heating used of thermal process again, consume electric power is unfavorable for the energy-conservation of system.Simultaneously, the Cooling and Heat Source of existing air-treatment unit is generally the steam compression heat pump system, and it is driven by electric energy, along with energy situation is increasingly serious, improves the refrigeration heat pump system performance, and saves energy is the important development direction of refrigeration heat pump system.
Summary of the invention
The utility model technical problem to be solved is that the present situation that is directed against prior art provides a kind of heat reclamation type heat pump type air conditioning system.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this heat reclamation type heat pump type air conditioning system; Comprise air-treatment unit and source pump, wherein said air-treatment unit comprises the air channel, is successively set on the new wind inlet in the air channel, new wind-heat matter switching equipment, return air inlet, mixing air heat-mass exchange equipment and air outlet along air supply direction; Described source pump comprises compressor, four-way change-over valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement; Wherein, two ports of first port of first medium of first port of first medium of said indoor heat exchanger, said outdoor heat exchanger and said compressor are connected four ports of said four-way change-over valve respectively; Two ports of second medium of said indoor heat exchanger connect two ports of said mixing air heat-mass exchange equipment respectively, and connection line is provided with first circulating pump; It is characterized in that: this heat pump type air conditioning system also comprises subcooler, and two ports of the 3rd medium of said subcooler connect two ports of described new wind-heat matter switching equipment respectively, and connection line is provided with second circulating pump; First port of first medium of said subcooler connects first port of said throttling arrangement, and first check valve and the 3rd check valve series connection back form the first valve road, and the tie point of first check valve and second check valve is a first node; Second check valve and the 4th check valve series connection back form the second valve road, and the tie point of second check valve and the 4th check valve is the 3rd node; The first valve road and the parallel connection of the second valve road, two tie points after the parallel connection are Section Point and the 4th node; Second port of said throttling arrangement connects the 4th node; Second port of first medium of said subcooler connects Section Point; Second port of first medium of said indoor heat exchanger connects first node, and second port of first medium of said outdoor heat exchanger connects the 3rd node.
Also be provided with humidifier between hot again equipment of said mixing air and the air outlet.
Also be provided with the hot again equipment of mixing air between said mixing air heat-mass exchange equipment and the said humidifier; Two ports of hot again equipment the 3rd medium of this mixing air connect two ports of said new wind-heat matter switching equipment the 3rd medium respectively, and are respectively equipped with temperature control valve and magnetic valve on the line between two ports of two ports of hot again equipment the 3rd medium of said mixing air and said new wind-heat matter switching equipment the 3rd medium.
Two ports of the 3rd medium of said subcooler interconnect, and connection line is provided with by-passing valve.
Described new wind-heat matter switching equipment and/or described mixing air heat-mass exchange equipment are indirect touch caloic exchange treatment facility.
Also be provided with and supply new wind and the well-mixed mixing chamber of return air between described new wind-heat matter switching equipment and the described mixing air heat-mass exchange equipment.
The utility model provides the new wind of a kind of subcooler preheating and reach the heat pump type air conditioning system of hot mixing air again, the heat of condensator outlet is utilized and improves the heat pump of systematic function coefficient again; One aspect of the present invention is provided with subcooler behind indoor heat exchanger, according to refrigeration principle, cold excessively existence improves the whole system coefficient of performance in the refrigeration system; Handle the new wind of unit on the other hand with the subcooler preheated air, its enthalpy is improved, reduce the heat that adds that mixes wind; Or mixing air carried out heat again, and its enthalpy is raise, reduce the heat again of mixing air; Native system is realized energy complement, has dual energy-conservation advantage.
Compared with prior art, the heat pump type air conditioning system of the utility model makes subcooler and air-treatment unit carry out the caloic exchange through circulatory mediator.Under the heat supply operating mode, new wind carries out indirect heat through new wind-heat matter switching equipment and subcooler and exchanges, and after mixing air heat-mass exchange equipment and indoor heat exchanger carry out indirect heat exchange, sends into indoor again.Under the cooling condition, new wind mixes with return air, gets into the mixing air heat-mass exchange equipment then and further handles, and gets into the hot again equipment of mixing air again and carries out heat again, is sent into indoor at last by blower fan.Because subcooler connects the portion of hot load of having born new wind through the hot again equipment heating time of mixing air, the total load that makes condenser bear reduces; Thereby heat saving high-grade electric energy has reached energy-conservation effect effectively to utilize refrigeration system condensation end heat energy to carry out again during refrigeration.
Subcooler and new wind-heat matter switching equipment and mixing air are provided with temperature control valve in the 3rd medium connecting line of hot equipment again the flow of the 3rd medium are controlled; Thereby control is to the heating-up temperature of new wind and mixing air, makes the air themperature after the processing keep relatively stable.When the 3rd rate-of flow of hot equipment reduced again through new wind-heat matter switching equipment and mixing air, the 3rd unnecessary rate-of flow was got back to subcooler through the by-passing valve bypass.
This invention is safe and reliable to operation, pollution-free, and it is bigger effectively to have solved Xia Redong cryogenic region thermic load in winter, and the problem that power consumption is big is very suitable for the Xia Redong cryogenic region.Be particularly suitable for museum, exhibition center etc. to the demanding occasion of temperature accuracy.
Description of drawings
Fig. 1 is the sketch map of the utility model embodiment;
Fig. 2 is the psychrometric chart of air handling process under the utility model embodiment heat supply operating mode;
Fig. 3 is the psychrometric chart of air handling process under the utility model embodiment cooling condition.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Fig. 1 is the fundamental diagram of the embodiment of the invention; Fig. 2 is the psychrometric chart under the embodiment of the invention cooling condition;
Fig. 3 is to be the psychrometric chart under the embodiment of the invention heat supply operating mode.
Among Fig. 1,1-compressor, 2-indoor heat exchanger, 3-subcooler, 4-throttling arrangement; The 5-outdoor heat exchanger, 6-first circulating pump, the new wind-heat matter of 7-switching equipment, 8-mixing air heat-mass exchange equipment, 9-second circulating pump; The 10-humidifier, the 11-blower fan, 12a, 12c-temperature control valve, 12b,, the 12d-magnetic valve; The 12e-by-passing valve, 13-four-way change-over valve, the hot again equipment of 14-mixing air, 15a, 15b, 15c, 15d-check valve.
As shown in Figure 1, the energy-conservation heat pump type air conditioning system of these economic benefits and social benefits comprises air-treatment unit and source pump.
Wherein, described air-treatment unit comprises:
Source pump comprises compressor 1, four-way change-over valve 13, indoor heat exchanger 2, outdoor heat exchanger 5 and throttling arrangement 4, the first check valve 15a, the second check valve 15b, the 3rd check valve 15c, the 4th check valve 15d and subcooler 3.
First medium in the present embodiment is a cold-producing medium, and second is identical with the 3rd medium, is water.
The annexation of above-mentioned air-treatment unit and source pump is:
Two ports of first port of first port of first medium of indoor heat exchanger 2, first medium of outdoor heat exchanger 5 and compressor 1 are connected four ports of four-way change-over valve 13 respectively; Two ports of second medium of indoor heat exchanger 2 connect two ports of mixing air heat-mass exchange equipment 8 respectively, and connection line is provided with first circulating pump 9; Two ports of the new wind-heat matter switching equipment 7 that two ports of the 3rd medium of subcooler 3 connect respectively, and connection line is provided with second circulating pump 6, simultaneously, also is respectively equipped with temperature control valve 12a and magnetic valve 12b on two connection lines; First port of first medium of subcooler connects first port of said throttling arrangement 4; Two ports of the hot again equipment 14 of mixing air connect two ports of new wind-heat matter switching equipment 7 through the 3rd medium respectively, and are respectively equipped with temperature control valve 12c and magnetic valve 12d on the connection line.Two ports of subcooler 3 the 3rd medium interconnect, and connection line is provided with by-passing valve 12e.
The first check valve 15a and the 3rd check valve 15c series connection back form the first valve road, and the tie point of the first check valve 15a and the 3rd check valve 15c is a first node; The second check valve 15b and the 4th check valve 15d series connection back form the second valve road, and the tie point of the second check valve 15b and the 4th check valve 15d is the 3rd node; The first valve road and the parallel connection of the second valve road, two tie points after the parallel connection are Section Point and the 4th node.
Second port of throttling arrangement 4 connects the 4th node; Second port of first medium of subcooler 3 connects Section Point; Second port of first medium of indoor heat exchanger 2 connects first node, and second port of first medium of outdoor heat exchanger 5 connects the 3rd node.
New wind-heat matter switching equipment 7 in the present embodiment, mixing air heat-mass exchange equipment 8 and the hot again equipment 14 of mixing air are indirect touch caloic exchange treatment facility.
The operation principle of this heat reclamation type heat pump type air conditioning system is:
Under the heat supply operating mode, first port of four-way change-over valve 13 is communicated with second port, and its 3rd port is communicated with the 4th port, and magnetic valve 12b opens, 12d closes, and temperature control valve 12a opens, 12e closes.First MEDIA FLOW of the outlet of compressor 1 gets into indoor heat exchanger 2 through first port and second port of four-way change-over valve 13; First medium is emitted heat and is given second medium in indoor heat exchanger 2; Temperature is flowed through check valve 15a to subcooler 3 after reducing; In subcooler 3, continue heat release and give the 3rd medium; First medium absorbs heat through check valve 15d inlet chamber external heat exchanger 5 after throttling arrangement 4 throttling step-downs, get back to compressor 1 inlet through the 3rd port and the 4th port of four-way change-over valve 13, accomplishes first medium circulation; Liberated heat passes to the 3rd medium through circulating pump 6, the magnetic valve 12b new wind-heat matter switching equipment 7 of flowing through in the subcooler 3, gets back to subcooler 13 through temperature control valve 12a, accomplishes the 3rd medium circulation; The new wind-heat matter of outdoor new distinguished and admirable warp switching equipment 7; By the 3rd media preheating, the enthalpy of new wind is improved, mix with return air again; Get into mixing air heat-mass exchange equipment 8; Indoor heat exchanger 2 liberated heats pass to second medium and in mixing air heat-mass exchange equipment 8, heat mixing air through circulating pump 9, get into humidifier by humidification, send into indoor through blower fan 11.
Under the cooling condition, first port of four-way change-over valve is communicated with the 4th port, and its second port is communicated with the 3rd port, and magnetic valve 12d opens, 12b closes, and temperature control valve 12c opens, 12a closes.First MEDIA FLOW of the outlet of compressor 1 is through first port and the 4th port inlet chamber external heat exchanger 5 of four-way change-over valve 13; First medium is emitted heat in outdoor heat exchanger 5; Temperature reduces the back and further lowers the temperature through the check valve 15b subcooler 3 of flowing through; Get into indoor heat exchanger 2 absorption heats through throttling arrangement 4 throttling step-downs and through check valve 15c again, get back to compressor 1 inlet, accomplish first medium circulation through second port and the 3rd port of four-way change-over valve 13; Outdoor new wind mixes with return air; Get into the 8 cooling dehumidifications of mixing air heat-mass exchange equipment to dew point, get into the hot again equipment 14 of mixing air again and be heated to wind pushing temperature, it is surplus wet to send in the indoor absorption chamber waste heat by blower fan; Wherein first medium absorbs the heat of second medium through indoor heat exchanger 2; Second medium temperature reduces, and through circulating pump 9 cooling and mixing air in mixing air heat-mass exchange equipment 8, after first medium in the subcooler and the 3rd medium heat exchange; The 3rd medium temperature is raise; Through carrying out heat again to handling the mix air in the hot again equipment 14 of magnetic valve 12d entering mixing air, its 3rd medium circulation flow is sent into indoor by temperature-sensing valve 12c control through blower fan 11.
Claims (6)
1. heat reclamation type heat pump type air conditioning system; Comprise air-treatment unit and source pump, wherein said air-treatment unit comprises the air channel, is successively set on the new wind inlet in the air channel, new wind-heat matter switching equipment, return air inlet, mixing air heat-mass exchange equipment, the hot again equipment of mixing air and air outlet along air supply direction; Described source pump comprises compressor, four-way change-over valve, indoor heat exchanger, outdoor heat exchanger and throttling arrangement; Wherein, two ports of first port of first medium of first port of first medium of said indoor heat exchanger, said outdoor heat exchanger and said compressor are connected four ports of said four-way change-over valve respectively; Two ports of second medium of said indoor heat exchanger connect two ports of said mixing air heat-mass exchange equipment respectively, and connection line is provided with first circulating pump; It is characterized in that: this heat pump type air conditioning system also comprises subcooler, and two ports of the 3rd medium of said subcooler connect two ports of described new wind-heat matter switching equipment respectively, and connection line is provided with second circulating pump; First port of first medium of said subcooler connects first port of said throttling arrangement, and first check valve and the 3rd check valve series connection back form the first valve road, and the tie point of first check valve and the 3rd check valve is a first node; Second check valve and the 4th check valve series connection back form the second valve road, and the tie point of second check valve and the 4th check valve is the 3rd node; The first valve road and the parallel connection of the second valve road, two tie points after the parallel connection are Section Point and the 4th node; Second port of said throttling arrangement connects the 4th node; Second port of first medium of said subcooler connects Section Point; Second port of first medium of said indoor heat exchanger connects first node, and second port of first medium of said outdoor heat exchanger connects the 3rd node.
2. heat reclamation type heat pump type air conditioning system according to claim 1 is characterized in that also being provided with humidifier between hot again equipment of said mixing air and the air outlet.
3. heat reclamation type heat pump type air conditioning system according to claim 2; It is characterized in that also being provided with between said mixing air heat-mass exchange equipment and the said humidifier the hot again equipment of mixing air; Two ports of hot again equipment the 3rd medium of this mixing air connect two ports of said new wind-heat matter switching equipment the 3rd medium respectively, and are respectively equipped with temperature control valve and magnetic valve on the line between two ports of two ports of hot again equipment the 3rd medium of said mixing air and said new wind-heat matter switching equipment the 3rd medium.
4. according to any described heat reclamation type heat pump type air conditioning system of claim of claim 1 to 3, it is characterized in that two ports of the 3rd medium of said subcooler interconnect, and connection line is provided with by-passing valve.
5. heat reclamation type heat pump type air conditioning system according to claim 4 is characterized in that described new wind-heat matter switching equipment and/or described mixing air heat-mass exchange equipment are indirect touch caloic exchange treatment facility.
6. heat reclamation type heat pump type air conditioning system according to claim 4 is characterized in that also being provided with and supplying between described new wind-heat matter switching equipment and the described mixing air heat-mass exchange equipment new wind and the well-mixed mixing chamber of return air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120154532 CN202126035U (en) | 2011-05-12 | 2011-05-12 | Heat recovery type heat pump air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120154532 CN202126035U (en) | 2011-05-12 | 2011-05-12 | Heat recovery type heat pump air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202126035U true CN202126035U (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120154532 Expired - Lifetime CN202126035U (en) | 2011-05-12 | 2011-05-12 | Heat recovery type heat pump air conditioning system |
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| Country | Link |
|---|---|
| CN (1) | CN202126035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155773A (en) * | 2011-05-12 | 2011-08-17 | 宁波工程学院 | Heat-recovery type heat pump air conditioning system |
-
2011
- 2011-05-12 CN CN 201120154532 patent/CN202126035U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155773A (en) * | 2011-05-12 | 2011-08-17 | 宁波工程学院 | Heat-recovery type heat pump air conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120125 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |