CN216977016U - Air source heat pump system - Google Patents
Air source heat pump system Download PDFInfo
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- CN216977016U CN216977016U CN202122650319.7U CN202122650319U CN216977016U CN 216977016 U CN216977016 U CN 216977016U CN 202122650319 U CN202122650319 U CN 202122650319U CN 216977016 U CN216977016 U CN 216977016U
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Abstract
The utility model relates to an air source heat pump system, which comprises an indoor condenser, an outdoor compressor, a throttling device, an intermediate heat exchanger and an air heat exchanger, wherein the compressor, the throttling device, the intermediate heat exchanger and the primary side of the intermediate heat exchanger are sequentially connected end to end through pipelines to form a heat pump circulation loop, the air heat exchanger is a plastic heat exchanger, two ports of the air heat exchanger are correspondingly connected with two ports of the secondary side of the intermediate heat exchanger through pipelines to form a heat exchange circulation loop, glycol antifreeze solution is arranged in the heat exchange circulation loop, a sprayer and a liquid collecting tank are correspondingly arranged on the upper side and the lower side of the air heat exchanger, the sprayer and the liquid collecting tank are connected through pipelines to form a spraying circulation loop, and a solution tank is arranged on the spraying circulation loop. The novel energy-saving control system has the advantages of simple structure, low cost, safety, reliability and strong practicability, can effectively avoid the frosting phenomenon, improves the stability of the system and reduces energy consumption.
Description
Technical Field
The utility model relates to an air conditioning system, in particular to an air source heat pump system capable of effectively preventing frosting.
Background
When the evaporation temperature of the existing air source heat pump system is about zero or below, the outdoor unit (evaporator) can frost, so that the heat exchange quantity can be rapidly reduced, the heating performance is influenced, and a defrosting program can be frequently started by the system, thereby not only influencing the stability of the system, but also causing energy waste.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an air source heat pump system which has the advantages of simple structure, low cost, safety, reliability and strong practicability, can effectively avoid the frosting phenomenon, improves the stability of the system and reduces the energy consumption.
In order to solve the problems in the prior art, the utility model provides an air source heat pump system which comprises an indoor condenser, an outdoor compressor, a throttling device, an intermediate heat exchanger and an air heat exchanger, wherein the compressor, the throttling device, the intermediate heat exchanger and a primary side of the intermediate heat exchanger are sequentially connected end to end through pipelines to form a heat pump circulation loop, the air heat exchanger is a plastic heat exchanger, two ports of the air heat exchanger are correspondingly connected with two ports of a secondary side of the intermediate heat exchanger through pipelines to form a heat exchange circulation loop, ethylene glycol antifreeze solution is arranged in the heat exchange circulation loop, a sprayer and a liquid collecting tank are correspondingly arranged on the upper side and the lower side of the air heat exchanger, the sprayer and the liquid collecting tank are connected through pipelines to form a spraying circulation loop, and a solution tank is arranged on the spraying circulation loop.
Further, the air source heat pump system is characterized in that a filler is arranged between the air heat exchanger and the sprayer, a fan is arranged on the upper side of the sprayer, an air inlet is formed in the lower side of the air heat exchanger, and an air outlet is formed in the upper side of the fan.
Further, the air source heat pump system is characterized in that a first circulating pump is arranged on the heat exchange circulating loop, and a second circulating pump is arranged on the spraying circulating loop.
Further, the utility model relates to an air source heat pump system, wherein a four-way reversing valve is arranged in the heat pump circulation loop.
Further, the air heat exchanger is formed by combining a plurality of plastic heat exchange modules, each plastic heat exchange module comprises two connecting seats and a plurality of heat exchange plates which are distributed oppositely, each connecting seat comprises a hollow main body, vertical connectors are arranged on the left end wall and the right end wall of each main body respectively, transverse connectors are arranged on the upper side wall and the lower side wall of each main body respectively, inserting grooves distributed at intervals are arranged on the front side of each main body, limiting platforms used for blocking the heat exchange plates are arranged on the peripheral walls of the inserting grooves, and communicating holes communicated with the inserting grooves and the inner cavity of each main body are formed in the bottoms of the inserting grooves; the heat exchange plates comprise base plates, capillary holes are distributed in the base plates at intervals, and the heat exchange plates are arranged in parallel at intervals and are in hot-melt connection with the corresponding connecting seats through inserting grooves at two ends respectively.
Furthermore, the utility model relates to an air source heat pump system, wherein two transverse connectors on the upper side wall and the lower side wall of the main body are respectively arranged at intervals.
Further, the cross section of the capillary hole is in a round shape, an oval shape, a triangular shape, a trapezoidal shape or a long strip shape with two semicircular ends.
Further, the cross section of the capillary hole is in a long strip shape with two semicircular arc ends.
Further, the utility model relates to an air source heat pump system, wherein adjacent plastic heat exchange modules in the air heat exchanger are connected through a vertical interface or a horizontal interface in a hot melting mode, and except for the vertical interface or the horizontal interface serving as an input port and an output port in the air heat exchanger, the other vertical interfaces and the other horizontal interfaces are respectively provided with a plugging disc through hot melting.
Compared with the prior art, the air source heat pump system has the following advantages: the utility model is characterized in that a condenser arranged indoors, a compressor arranged outdoors, a throttling device, an intermediate heat exchanger and an air heat exchanger are arranged, primary sides of the compressor, the condenser, the throttling device and the intermediate heat exchanger are sequentially connected end to end through pipelines to form a heat pump circulation loop, the air heat exchanger adopts a plastic heat exchanger, two ports of the air heat exchanger are correspondingly connected with two ports of a secondary side of the intermediate heat exchanger through pipelines to form a heat exchange circulation loop, glycol antifreeze solution is used as a heat exchange working medium in the heat exchange circulation loop, a sprayer and a collecting tank are correspondingly arranged on the upper side and the lower side of the air heat exchanger, the sprayer and the collecting tank are connected through pipelines to form a spraying circulation loop, and a solution tank is arranged on the spraying circulation loop. Therefore, the air source heat pump system with simple structure, low cost, safety, reliability and strong practicability is formed. In practical application, salt solution is used as a spraying medium in a spraying circulation loop under the working condition in winter, after the system is started, on one hand, the heat pump circulation loop releases heat at a condenser to heat an indoor space, on the other hand, the heat pump circulation loop absorbs heat from the heat exchange circulation loop at an intermediate heat exchanger, on the one hand, the heat exchange circulation loop releases heat at the intermediate heat exchanger to provide a heat source for the heat pump circulation loop, on the other hand, the heat exchange circulation loop absorbs heat from air at the air heat exchanger, on the one hand, the spraying circulation loop sprays the salt solution to the air heat exchanger through a sprayer, and on the other hand, the spraying salt solution is collected through a liquid collecting tank. According to the utility model, the intermediate heat exchanger and the air heat exchanger are arranged, the heat exchange circulation loop is arranged between the intermediate heat exchanger and the air heat exchanger, and the saline solution is sprayed to the air heat exchanger, so that the frosting of the air heat exchanger can be avoided in the heat exchange process with the air because the freezing point of the saline solution is lower than that of the water vapor, the heat exchange performance of the air heat exchanger is ensured, the stability of the system is improved, and the energy consumption is reduced.
An air source heat pump system according to the present invention will be described in detail with reference to the embodiments shown in the drawings.
Drawings
FIG. 1 is a diagram of a winter operating condition of an air source heat pump system of the present invention;
FIG. 2 is a diagram of a summer operating condition of an air source heat pump system of the present invention;
FIG. 3 is a front view of an air heat exchanger in an air source heat pump system of the present invention;
FIG. 4 is an isometric view of an air heat exchanger in an air source heat pump system of the present invention;
FIG. 5 is a front view of a plastic heat exchange module in an air source heat pump system of the present invention;
FIG. 6 is an isometric view of a plastic heat exchange module in an air source heat pump system of the present invention;
FIG. 7 is a front view of a heat exchange plate in an air source heat pump system of the present invention;
FIG. 8 is a top view of a heat exchange plate in an air source heat pump system of the present invention;
FIG. 9 is an isometric view of a heat exchange panel in an air source heat pump system of the present invention;
FIG. 10 is an enlarged view of a portion of FIG. 9 at position A;
FIG. 11 is a front view of a connecting block in an air source heat pump system of the present invention;
FIG. 12 is a top view of a connecting base in an air source heat pump system of the present invention;
FIG. 13 is a view from the B-B direction in FIG. 11;
FIG. 14 is an isometric view of a connection block in an air source heat pump system of the present invention;
FIG. 15 is an enlarged view of a portion of FIG. 11 at position C;
fig. 16 is a partial enlarged view of the position D in fig. 13.
Detailed Description
First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for easy understanding, and do not limit the technical solution and the claimed scope of the present invention.
As shown in fig. 1 to 16, an embodiment of the air source heat pump system of the present invention includes a condenser 1, a compressor 2, a throttling device 3, an intermediate heat exchanger 4, and an air heat exchanger 5, wherein the condenser 1 is disposed in an indoor space 100, and the compressor 2, the throttling device 3, the intermediate heat exchanger 4, and the air heat exchanger 5 are disposed outdoors. The compressor 2, the condenser 1, the throttling device 3 and the primary side of the intermediate heat exchanger 4 are sequentially connected end to end through pipelines to form a heat pump circulation loop. The air heat exchanger 5 is made of a plastic heat exchanger, two ports of the air heat exchanger 5 are correspondingly connected with two ports of the secondary side of the intermediate heat exchanger 4 through pipelines to form a heat exchange circulation loop, and the heat exchange circulation loop takes ethylene glycol antifreeze as a heat exchange working medium. The upper side and the lower side of the air heat exchanger 5 are correspondingly provided with a sprayer 6 and a liquid collecting tank 7, the sprayer 6 and the liquid collecting tank 7 are connected through a pipeline to form a spraying circulation loop, and a solution tank 8 is arranged on the spraying circulation loop. Wherein, a first circulating pump 11 is arranged on the heat exchange circulating loop, and a second circulating pump 12 is arranged on the spraying circulating loop.
The air source heat pump system with simple structure, low cost, safety, reliability and strong practicability is formed through the structure. In practical application, salt solution is used as a spraying medium in a spraying circulation loop under the working condition in winter, after the system is started, on one hand, the heat pump circulation loop releases heat at the condenser 1 to heat an indoor space, on the other hand, the heat pump circulation loop absorbs heat from the heat exchange circulation loop at the intermediate heat exchanger 4, on the one hand, the heat exchange circulation loop releases heat at the intermediate heat exchanger 4 to provide a heat source for the heat pump circulation loop, on the other hand, the heat exchanger 5 absorbs heat from air, on the other hand, the spraying circulation loop sprays the salt solution to the air heat exchanger 5 through the sprayer 6, and on the other hand, the spraying salt solution is collected through the liquid collecting tank 7. According to the utility model, the intermediate heat exchanger 4 and the air heat exchanger 5 are arranged, the heat exchange circulation loop is arranged between the intermediate heat exchanger and the air heat exchanger 5, and the saline solution is sprayed to the air heat exchanger 5, so that the air heat exchanger 5 can be prevented from frosting in the heat exchange process with air because the freezing point of the saline solution is lower than that of water vapor, the heat exchange performance of the air heat exchanger is ensured, the stability of the system is improved, and the energy consumption is reduced; the air heat exchanger 5 adopts a plastic heat exchanger, so that the corrosion resistance is improved, and the service life is prolonged; by using the glycol antifreezing solution as the heat exchange working medium in the heat exchange circulation loop, the freezing point of the glycol is low, so that the freezing risk can be effectively reduced, and the safety and reliability are improved.
As a specific implementation mode, the utility model also provides a four-way reversing valve (not shown in the figure) in the heat pump circulation loop so as to enable the system to meet the refrigeration requirement in summer. Under the summer working condition, a heat pump circulation loop converts the flow direction of a working medium through a four-way reversing valve, and water is used as a spraying medium for the spraying circulation loop, after the system is started, the heat pump circulation loop absorbs heat at the condenser 1 on one hand and is used for indoor refrigeration, on the other hand, the heat exchange circulation loop releases heat to the heat exchange circulation loop at the intermediate heat exchanger 4 on the other hand, the heat exchange circulation loop absorbs heat at the intermediate heat exchanger 4 on the one hand and provides a cold source for the heat pump circulation loop, on the other hand, the heat is released into the air at the air heat exchanger 5 on the other hand, the spraying circulation loop sprays water to the air heat exchanger 5 through a sprayer 6 on the one hand, and on the other hand, the sprayed water is collected through a liquid collecting tank 7 on the other hand. Through spraying water to the air heat exchanger 5 under the summer operating mode, reduced air intlet's temperature, increased the heat transfer difference in temperature, improved the heat transfer effect.
As an optimized scheme, in the present embodiment, a filler 9 is disposed between the air heat exchanger 5 and the sprayer 6, and a fan 10 is disposed on the upper side of the sprayer 6, wherein the lower side of the air heat exchanger 5 is an air inlet, and the upper side of the fan 10 is an air outlet. This structure is broken up the salt solution through setting up filler 9, can make the salt solution fully contact with air heat exchanger 5's surface, has improved the anti-frosting effect, can be convenient for control the amount of wind through setting up fan 10, through setting up air intlet at air heat exchanger 5 downside, sets up the air outlet at fan 10 upside, has just made to form the mode against the current between air and the salt solution, has strengthened heat exchange efficiency and anti-frosting effect.
As an optimized scheme, the air heat exchanger 5 in the present embodiment adopts a structure formed by combining a plurality of plastic heat exchange modules, wherein each plastic heat exchange module includes two connecting seats 51 and a plurality of heat exchange plates 52 which are distributed oppositely, each connecting seat 51 includes a hollow main body 511, vertical connectors 512 are respectively arranged on left and right end walls of the main body 511, transverse connectors 513 are respectively arranged on upper and lower side walls of the main body 511, slots 514 which are distributed at intervals are arranged on the front side of the main body 511, limiting platforms 515 which are used for blocking the heat exchange plates 52 are arranged on the circumferential walls of the slots 514, and communication holes 516 which are used for communicating the slots 514 with an inner cavity of the main body 511 are arranged on the bottoms of the slots 514; the heat exchange plates 52 include a base plate 521, capillary holes 522 are disposed in the base plate 521, and a plurality of heat exchange plates 52 are disposed in parallel at intervals and have two ends respectively connected to the corresponding connecting seats 51 through slots 514 in a hot-melting manner. In practical applications, the capillary 522 may have a cross-section in a circular, oval, triangular, trapezoidal or elongated structure with two semicircular arcs, and preferably has an elongated structure with two semicircular arcs, so as to simplify the manufacturing process and improve the heat exchange efficiency. It should be noted that, when the air heat exchanger 5 is assembled, adjacent plastic heat exchange modules should be connected by hot melting through the vertical connector 512 or the horizontal connector 513, and except the vertical connector 512 or the horizontal connector 513 serving as an input port and an output port in the air heat exchanger, the remaining vertical connectors 512 and the remaining horizontal connectors 513 are respectively provided with the plugging disc 53 by hot melting, so that the plastic heat exchange modules are communicated with each other and form an effective internal space. The air heat exchanger with the structure has the advantages of strong adaptability and good expansibility, and can be combined into heat exchangers with different sizes according to actual requirements. In practical application, the present invention generally arranges two transverse connectors 513 on the upper and lower sidewalls of the main body 511 at intervals, and arranges a plurality of communication holes 516 at intervals to improve the uniformity of the distribution of the heat exchange working medium in the air heat exchanger.
The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solution of the present invention without departing from the design concept of the present invention shall fall within the scope of the present invention defined by the claims.
Claims (9)
1. An air source heat pump system is characterized by comprising an indoor condenser (1), an outdoor compressor (2), a throttling device (3), an intermediate heat exchanger (4) and an air heat exchanger (5), wherein the compressor (2), the condenser (1), the throttling device (3) and a primary side of the intermediate heat exchanger (4) are sequentially connected end to end through pipelines to form a heat pump circulation loop, the air heat exchanger (5) is a plastic heat exchanger, two ports of the air heat exchanger (5) are correspondingly connected with two ports of a secondary side of the intermediate heat exchanger (4) through pipelines to form a heat exchange circulation loop, ethylene glycol antifreeze solution is arranged in the heat exchange circulation loop, a sprayer (6) and a liquid collecting tank (7) are correspondingly arranged on the upper side and the lower side of the air heat exchanger (5), and the sprayer (6) and the liquid collecting tank (7) are connected through pipelines to form a spraying circulation loop, a solution tank (8) is arranged on the spraying circulation loop.
2. The air-source heat pump system according to claim 1, wherein a filler (9) is arranged between the air heat exchanger (5) and the sprayer (6), and a fan (10) is arranged on the upper side of the sprayer (6), wherein the lower side of the air heat exchanger (5) is an air inlet, and the upper side of the fan (10) is an air outlet.
3. The air-source heat pump system as claimed in claim 2, wherein a first circulating pump (11) is provided on the heat exchange circulating loop, and a second circulating pump (12) is provided on the spraying circulating loop.
4. The air-source heat pump system of claim 3, wherein a four-way reversing valve is disposed in the heat pump circulation loop.
5. The air-source heat pump system as claimed in claim 4, wherein the air heat exchanger (5) is composed of a plurality of plastic heat exchange modules, each plastic heat exchange module comprises two oppositely distributed connecting seats (51) and a plurality of heat exchange plates (52), each connecting seat (51) comprises a hollow main body (511), vertical connectors (512) are respectively arranged on the left and right end walls of each main body (511), transverse connectors (513) are respectively arranged on the upper and lower side walls of each main body (511), slots (514) are arranged on the front side of each main body (511) at intervals, limiting tables (515) for blocking the heat exchange plates (52) are arranged on the peripheral walls of the slots (514), and communication holes (516) for communicating the slots (514) with the inner cavity of the main body (511) are arranged on the bottoms of the slots (514); the heat exchange plates (52) comprise base plates (521), capillary holes (522) distributed at intervals are formed in the base plates (521), and the heat exchange plates (52) are arranged in parallel at intervals and are in hot melting connection with the corresponding connecting seats (51) through inserting grooves (514).
6. An air-source heat pump system according to claim 5, characterized in that the two transverse ports (513) on the upper and lower side walls of the main body (511) are respectively provided at intervals.
7. The air-source heat pump system according to claim 5, wherein the cross-section of the capillary holes (522) is circular, oval, triangular, trapezoidal or elongated with two semi-circular arcs at two ends.
8. The air-source heat pump system according to claim 7, wherein the cross-section of the capillary hole (522) is in the shape of a long bar with two semicircular arcs at two ends.
9. The air-source heat pump system as claimed in claim 5, wherein adjacent plastic heat exchange modules in the air heat exchanger (5) are connected by a vertical connector (512) or a horizontal connector (513) through hot melting, and the other vertical connectors (512) and horizontal connectors (513) in the air heat exchanger (5) except the vertical connectors (512) or the horizontal connectors (513) serving as the input port and the output port are respectively provided with a plugging disc (53) through hot melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122650319.7U CN216977016U (en) | 2021-11-01 | 2021-11-01 | Air source heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122650319.7U CN216977016U (en) | 2021-11-01 | 2021-11-01 | Air source heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216977016U true CN216977016U (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122650319.7U Active CN216977016U (en) | 2021-11-01 | 2021-11-01 | Air source heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216977016U (en) |
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2021
- 2021-11-01 CN CN202122650319.7U patent/CN216977016U/en active Active
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