Air source heat pump unit with double-temperature function

Abstract

The utility model discloses an air source heat pump unit with a double-temperature function. The air source heat pump unit comprises an air conditioner side compressor. The air conditioner air disc temperature adjusting system is communicated with the air conditioner side compressor, the air conditioner air disc temperature adjusting system comprises an air conditioner air disc side heat exchanger, and an air conditioner air disc side water outlet and an air conditioner air disc side water return port are formed in the air conditioner air disc side heat exchanger; and the air conditioner floor heating temperature adjusting system is communicated with the air conditioner side compressor and comprises an air conditioner floor heating side heat exchanger, and the air conditioner floor heating side heat exchanger comprises an air conditioner floor heating side water outlet and an air conditioner floor heating side water return port. By arranging the air conditioner air disc temperature adjusting system and the air conditioner floor heating temperature adjusting system, double-temperature output can be achieved, the requirement for temperature adjustment of a fan coil and floor heating is met, multi-temperature output is achieved, different use requirements are met, and cost is greatly saved; meanwhile, a plurality of heat pump units do not need to be adopted, so that the cost is greatly saved, and the space occupied by the whole unit is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning system technology, and in particular relates to an air source heat pump unit with dual temperature function. Background Technology

[0002] Currently, most air source heat pump units on the market use a single-circuit, single-temperature water outlet method. When it is necessary to supply underfloor heating, air temperature regulation, or other corresponding needs in daily life, different heat pumps are required, which greatly increases the cost and requires a large heat pump installation space. For example, application number 31821623456.3 discloses an air source heat pump unit, which, through its various structures, can only achieve cooling or heating of air, and its function is relatively simple. Utility Model Content

[0003] The purpose of this utility model is to provide an air source heat pump unit with dual-temperature function that can solve the above-mentioned problems.

[0004] According to one aspect of the present invention, an air source heat pump unit with dual-temperature function is provided, comprising:

[0005] Air conditioning compressor;

[0006] The air conditioning fan coil temperature regulation system is connected to the air conditioning side compressor. The air conditioning fan coil temperature regulation system includes an air conditioning fan coil side heat exchanger, which is equipped with an air conditioning fan coil side water outlet and an air conditioning fan coil side water return outlet.

[0007] The air conditioning and floor heating temperature regulation system is connected to the air conditioning compressor. The air conditioning and floor heating temperature regulation system includes an air conditioning and floor heating heat exchanger, which includes an air conditioning and floor heating outlet and an air conditioning and floor heating return outlet.

[0008] In some implementations, the air conditioning fan coil temperature regulation system is as follows: the air outlet of the air conditioning side compressor is connected to the air conditioning side four-way valve, and the C port of the air conditioning side four-way valve is sequentially connected to the air conditioning fan coil side heat exchanger, economizer, air conditioning side finned heat exchanger, the E port of the air conditioning side four-way valve, and the air intake of the air conditioning side compressor.

[0009] In some embodiments, the air conditioning fan coil temperature regulation system further includes an air conditioning fan coil side refrigeration expansion valve, a first one-way valve, a liquid injection enthalpy-increasing expansion valve, an air conditioning heating expansion valve, and a second one-way valve. The air conditioning fan coil side refrigeration expansion valve is connected in parallel with the first one-way valve and is located between the air conditioning fan coil side heat exchanger and the economizer. The first one-way valve is connected from the air conditioning fan coil side heat exchanger to the economizer side. The liquid injection enthalpy-increasing expansion valve is connected to the first outlet of the economizer. The air conditioning heating expansion valve is connected in parallel with the second one-way valve and is located between the air conditioning side finned heat exchanger and the liquid injection enthalpy-increasing expansion valve.

[0010] In some implementations, the air conditioning floor heating temperature regulation system is as follows: the air outlet of the air conditioning side compressor is connected to the air conditioning side four-way valve, and the C port of the air conditioning side four-way valve is sequentially connected to the air conditioning floor heating side heat exchanger, economizer, air conditioning side finned heat exchanger, the E port of the air conditioning side four-way valve, and the air intake of the air conditioning side compressor.

[0011] In some embodiments, the air conditioning floor heating temperature regulation system further includes a third one-way valve, a fourth one-way valve, a fifth one-way valve, and an air conditioning floor heating side expansion valve. The third one-way valve and the fourth one-way valve are connected in parallel and in opposite directions. The third one-way valve and the fourth one-way valve are located between the air conditioning side four-way valve and the air conditioning floor heating side heat exchanger. The fifth one-way valve is connected in parallel with the air conditioning floor heating side expansion valve and is located between the air conditioning floor heating side heat exchanger and the economizer. The fifth one-way valve is open from the air conditioning floor heating side heat exchanger to the economizer side.

[0012] In some implementations, an air-source heat pump unit with dual-temperature function also includes a heat exchange fan, which corresponds to the air conditioner-side finned heat exchanger.

[0013] In some implementations, the air source heat pump unit with dual-temperature function also includes an air-conditioning side gas-liquid separator, and an air-conditioning side gas-liquid separator is provided between the air-conditioning side four-way valve and the suction end of the air-conditioning side compressor.

[0014] In some embodiments, an air source heat pump unit with dual-temperature function also includes multiple filters, each connected to a corresponding expansion valve.

[0015] The beneficial effects of this utility model are:

[0016] 1. By equipping the air conditioning fan coil temperature control system and the air conditioning underfloor heating temperature control system, dual temperature output can be achieved to meet the temperature control of the fan coil unit and the underfloor heating, realizing multiple temperature outputs to meet different usage requirements and greatly saving costs;

[0017] 2. Through the various structures of the air conditioning fan coil temperature regulation system, heating in winter and cooling in summer can be achieved, which can meet the cooling and heating requirements of the fan coil unit and realize the cooling or heating requirements of the air, and the temperature is adjustable.

[0018] 3. Through the various structures of the air conditioning floor heating temperature regulation system, different water temperatures for cooling or heating can be output, which facilitates the cooling or heating of the floor heating system and meets the cooling and heating requirements.

[0019] 4. The entire unit can simultaneously achieve two temperature outputs, which meet different output temperature requirements, without the need for multiple heat pump units, greatly saving costs and reducing the space occupied by the entire unit. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the principle of an air source heat pump unit with dual-temperature function according to this utility model. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Reference Figure 1 An air-source heat pump unit with dual-temperature function includes:

[0023] Air conditioning compressor 1;

[0024] The air conditioning fan coil temperature regulation system 4 is connected to the air conditioning side compressor 1. The air conditioning fan coil temperature regulation system 4 includes an air conditioning fan coil side heat exchanger 41, and the air conditioning fan coil side heat exchanger 41 is provided with an air conditioning fan coil side water outlet 42 and an air conditioning fan coil side water return outlet 43.

[0025] The air conditioning and floor heating temperature regulation system 5 is connected to the air conditioning side compressor 1. The air conditioning and floor heating temperature regulation system 5 includes an air conditioning and floor heating side heat exchanger 51, which includes an air conditioning and floor heating side water outlet 52 and an air conditioning and floor heating side water return 53.

[0026] In this invention, the power of the air conditioner-side compressor 1 can be increased or decreased according to the specific application environment to meet the heating and cooling requirements of different scenarios. The air conditioner fan coil temperature control system 4 exchanges heat through the air conditioner fan coil-side heat exchanger 41, allowing cooled or heated water to be output through the air conditioner fan coil-side outlet 42, thus achieving cooling or heating of the air conditioner fan coil unit and meeting temperature control requirements. The air conditioning underfloor heating temperature control system 5 exchanges heat through the air conditioning underfloor heating-side heat exchanger 51, obtaining cooled or heated water which is output through the air conditioning underfloor heating-side outlet 52, conveniently providing cooled or heated water for underfloor heating, meeting the cooling or heating effects of underfloor heating and satisfying temperature control requirements in different seasons.

[0027] The air conditioning fan coil temperature regulation system 4 is as follows: the air outlet of the air conditioning side compressor 1 is connected to the air conditioning side four-way valve 6, and the C port of the air conditioning side four-way valve 6 is connected in sequence to the air conditioning fan coil side heat exchanger 41, the economizer 7, the air conditioning side finned heat exchanger 8, the E port of the air conditioning side four-way valve 6, and the air intake of the air conditioning side compressor 1.

[0028] The air conditioning fan coil temperature control system 4 also includes an air conditioning fan coil side cooling expansion valve 44, a first one-way valve 45, a liquid injection enthalpy-increasing expansion valve 46, an air conditioning heating expansion valve 47, and a second one-way valve 48. The air conditioning fan coil side cooling expansion valve 44 and the first one-way valve 45 are connected in parallel and are located between the air conditioning fan coil side heat exchanger 41 and the economizer 7. The first one-way valve 45 is connected from the air conditioning fan coil side heat exchanger 41 to the economizer 7. The liquid injection enthalpy-increasing expansion valve 46 is connected to the first outlet of the economizer 7. The air conditioning heating expansion valve 47 and the second one-way valve 48 are connected in parallel and are located between the air conditioning side finned heat exchanger 8 and the liquid injection enthalpy-increasing expansion valve 46.

[0029] When in use, the air conditioning fan coil temperature control system 4 can cool or heat the fan coil unit, that is, it can output low-temperature water or heated water through the water outlet 42 on the side of the air conditioning fan coil unit, as detailed below:

[0030] When the air conditioning fan coil temperature control system 4 needs to output heated water, i.e., when used in low-temperature environments such as winter, the refrigerant from the air conditioning compressor 1 flows through port C of the air conditioning four-way valve 6 to the air conditioning fan coil heat exchanger 41. At this time, the low-temperature water flowing into the air conditioning fan coil heat exchanger 41 through the air conditioning fan coil return port 43 undergoes heat exchange at the air conditioning fan coil heat exchanger 41, causing the temperature to rise. This raises the temperature of the water flowing out of the air conditioning fan coil outlet 42, thus heating the air conditioning fan coil unit. After flowing out of the air conditioning fan coil heat exchanger 41, the refrigerant passes through the first one-way valve 45 and is then transported to the air conditioning heating expansion valve 47, and then to the air conditioning finned heat exchanger 8 for heat exchange. At this time, the second one-way valve 48 is not open. The refrigerant after heat exchange at the air conditioning finned heat exchanger 8 flows in through port E of the air conditioning four-way valve 6 and finally flows back to the air conditioning compressor 1. This cycle continues, completing the heating of the fan coil unit.

[0031] Conversely, when the air conditioning fan coil temperature control system 4 needs to output cooled water, i.e., when used in high-temperature environments such as summer, the refrigerant from the air conditioning compressor 1 is delivered through port E of the air conditioning four-way valve 6 to the air conditioning finned heat exchanger 8 for heat exchange. Then, it is delivered through the second one-way valve 48 to the air conditioning fan coil side cooling expansion valve 44, and finally to the air conditioning fan coil side heat exchanger 41 for heat exchange. This allows the high-temperature water to be cooled after heat exchange, resulting in cooled water flowing out and thus cooling the air conditioning fan coil unit. The refrigerant after heat exchange in the air conditioning fan coil side heat exchanger 41 flows back through port C of the air conditioning four-way valve 6 and finally returns to the air conditioning compressor 1, achieving cooling of the fan coil unit.

[0032] In actual use, when heating at low temperatures, the liquid injection enthalpy expansion valve 46 opens, and the air conditioner-side compressor 1 is directly connected to the economizer 7, accelerating heat exchange.

[0033] The air conditioning and floor heating temperature regulation system 5 is as follows: the air outlet of the air conditioning compressor 1 is connected to the air conditioning four-way valve 6, and the C port of the air conditioning four-way valve 6 is connected in sequence to the air conditioning floor heating heat exchanger 51, the economizer 7, the air conditioning finned heat exchanger 8, the E port of the air conditioning four-way valve 6, and the air intake of the air conditioning compressor 1.

[0034] The air conditioning and floor heating temperature regulation system 5 also includes a third one-way valve 54, a fourth one-way valve 55, a fifth one-way valve 56, and an air conditioning and floor heating side expansion valve 57. The third one-way valve 54 and the fourth one-way valve 55 are connected in parallel and in opposite directions. The third one-way valve 54 and the fourth one-way valve 55 are located between the air conditioning side four-way valve 6 and the air conditioning and floor heating side heat exchanger 51. The fifth one-way valve 56 is connected in parallel with the air conditioning and floor heating side expansion valve 57 and is located between the air conditioning and floor heating side heat exchanger 51 and the economizer 7. The fifth one-way valve 56 is open from the air conditioning and floor heating side heat exchanger 51 to the economizer 7.

[0035] In use, this utility model can cool or heat the underfloor heating system. Specifically, low-temperature water or heated water can be output through the water outlet 52 on the underfloor heating side of the air conditioner. The specific cooling or heating process is as follows:

[0036] When the air conditioning and floor heating temperature control system 5 needs to output heated water, i.e., when used in low-temperature environments such as winter, the refrigerant from the air conditioning compressor 1 flows through port C of the air conditioning four-way valve 6 and then through the fourth one-way valve 55 to the air conditioning and floor heating heat exchanger 51. At this time, the low-temperature water flowing in through the air conditioning and floor heating return port 53 undergoes heat exchange at the air conditioning and floor heating heat exchanger 51, causing the water temperature to rise. This raises the temperature of the water flowing out through the air conditioning and floor heating outlet 52, which is beneficial for achieving the heating effect of the floor heating. After the refrigerant flows out of the air conditioning and floor heating heat exchanger 51, it passes through the fifth one-way valve 56 and then through the economizer 7. Subsequently, it enters the air conditioning finned heat exchanger 8 through the air conditioning heating expansion valve 47 for heat exchange. At this time, the second one-way valve 48 is not open. The refrigerant after heat exchange at the air conditioning finned heat exchanger 8 flows in through port E of the air conditioning four-way valve 6 and finally flows back to the air conditioning compressor 1. This cycle is repeated to complete the heating of the floor heating.

[0037] Conversely, when the air conditioning and floor heating temperature control system 5 needs to output cooled water, i.e., when used in high-temperature environments such as summer, the refrigerant from the air conditioning compressor 1 undergoes preliminary heat exchange in the heat recovery heat exchanger 2, and then is transported through port E of the air conditioning four-way valve 6 to the air conditioning finned heat exchanger 8 for heat exchange. Subsequently, it is transported through the second one-way valve 48 to the air conditioning and floor heating side cooling expansion valve 57, and then to the air conditioning and floor heating side heat exchanger 51 for heat exchange. This allows the high-temperature water flowing in to be cooled after heat exchange, resulting in cooled water flowing out, thus achieving cooling of the floor heating system. After heat exchange in the air conditioning and floor heating side heat exchanger 51, the refrigerant flows in through port C of the air conditioning four-way valve 6 and finally returns to the air conditioning compressor 1, achieving cooling of the fan coil unit.

[0038] The air source heat pump unit with dual-temperature function of this utility model also includes a heat exchange fan 9, which corresponds to the air conditioner-side finned heat exchanger 8. Therefore, in use, the heat exchange fan 9 can act on the air conditioner-side finned heat exchanger 8 to accelerate the heat exchange efficiency at the air conditioner-side finned heat exchanger 8.

[0039] The air-source heat pump unit with dual-temperature function of this utility model also includes an air-conditioning side gas-liquid separator 3. An air-conditioning side gas-liquid separator 3 is provided between the air-conditioning side four-way valve 6 and the suction end of the air-conditioning side compressor 1. Thus, by providing an air-conditioning side gas-liquid separator 3, the refrigerant that finally flows back to the air-conditioning side compressor 1 can be separated into gas and liquid components, ensuring the normal operation of each compressor.

[0040] An air source heat pump unit with dual-temperature function also includes multiple filters 2, each connected to a corresponding expansion valve. This filters impurities, preventing them from entering the expansion valves and protecting them, thus ensuring their normal service life.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. An air-source heat pump unit with dual-temperature function, characterized in that, include: Air conditioning side compressor (1); The air conditioning fan coil temperature regulation system (4) is connected to the air conditioning side compressor (1). The air conditioning fan coil temperature regulation system (4) includes an air conditioning fan coil side heat exchanger (41). The air conditioning fan coil side heat exchanger (41) is provided with an air conditioning fan coil side water outlet (42) and an air conditioning fan coil side water return outlet (43). The air conditioning floor heating temperature regulation system (5) is connected to the air conditioning side compressor (1). The air conditioning floor heating temperature regulation system (5) includes an air conditioning floor heating side heat exchanger (51). The air conditioning floor heating side heat exchanger (51) includes an air conditioning floor heating side outlet (52) and an air conditioning floor heating side return outlet (53).

2. The air source heat pump unit with dual-temperature function according to claim 1, characterized in that, The air conditioning fan coil temperature regulation system (4) is as follows: the air outlet of the air conditioning side compressor (1) is connected to the air conditioning side four-way valve (6), and the C port of the air conditioning side four-way valve (6) is connected in sequence to the air conditioning fan coil side heat exchanger (41), economizer (7), air conditioning side finned heat exchanger (8), air conditioning side four-way valve (6) E port, and air conditioning side compressor (1) suction end.

3. An air-source heat pump unit with dual-temperature function according to claim 2, characterized in that, The air conditioning fan coil temperature regulation system (4) also includes an air conditioning fan coil side refrigeration expansion valve (44), a first one-way valve (45), a liquid injection enthalpy-increasing expansion valve (46), an air conditioning heating expansion valve (47), and a second one-way valve (48). The air conditioning fan coil side refrigeration expansion valve (44) is connected in parallel with the first one-way valve (45) and is located between the air conditioning fan coil side heat exchanger (41) and the economizer (7). The first one-way valve (45) is connected from the air conditioning fan coil side heat exchanger (41) to the economizer (7). The liquid injection enthalpy-increasing expansion valve (46) is connected to the first outlet of the economizer (7). The air conditioning heating expansion valve (47) is connected in parallel with the second one-way valve (48) and is located between the air conditioning side finned heat exchanger (8) and the liquid injection enthalpy-increasing expansion valve (46).

4. An air-source heat pump unit with dual-temperature function according to claim 3, characterized in that, The air conditioning floor heating temperature regulation system (5) is as follows: the air outlet of the air conditioning side compressor (1) is connected to the air conditioning side four-way valve (6), and the C port of the air conditioning side four-way valve (6) is connected in sequence to the air conditioning floor heating side heat exchanger (51), the economizer (7), the air conditioning side finned heat exchanger (8), the E port of the air conditioning side four-way valve (6), and the air intake of the air conditioning side compressor (1).

5. An air-source heat pump unit with dual-temperature function according to claim 4, characterized in that, The air conditioning floor heating temperature regulation system (5) also includes a third one-way valve (54), a fourth one-way valve (55), a fifth one-way valve (56), and an air conditioning floor heating side expansion valve (57). The third one-way valve (54) and the fourth one-way valve (55) are connected in parallel and their directions are opposite. The third one-way valve (54) and the fourth one-way valve (55) are located between the air conditioning side four-way valve (6) and the air conditioning floor heating side heat exchanger (51). The fifth one-way valve (56) is connected in parallel with the air conditioning floor heating side expansion valve (57) and is located between the air conditioning floor heating side heat exchanger (51) and the economizer (7). The fifth one-way valve (56) is connected from the air conditioning floor heating side heat exchanger (51) to the economizer (7).

6. An air-source heat pump unit with dual-temperature function according to any one of claims 2 to 5, characterized in that, It also includes a heat exchange fan (9), which corresponds to the air conditioning side finned heat exchanger (8).

7. An air-source heat pump unit with dual-temperature function according to claim 6, characterized in that, It also includes an air-conditioning side gas-liquid separator (3), and the air-conditioning side four-way valve (6) and the air-conditioning side compressor (1) are provided with an air-conditioning side gas-liquid separator (3).

8. An air-source heat pump unit with dual-temperature function according to claim 7, characterized in that, It also includes filters (2), and there are multiple filters (2), each of which is connected to a corresponding expansion valve.

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