CN203258721U - Multifunctional air source floor heating heat pump - Google Patents

Abstract

The utility model relates to a multifunctional air source floor heating heat pump which comprises a heat pump system and a floor heating system. The heat pump system comprises a heat exchanger which supplies heat for the floor heating system. The heat exchanger is provided with a heat exchange water inlet and a heat exchange water outlet. A floor heating unit comprises an energy storage water tank, a floor heating device and a water pump, wherein an inlet and an outlet of the energy storage water tank are communicated with the heat exchange water outlet and an inlet of the floor heating device respectively, and an inlet and an outlet of the water pump are communicated with an outlet of the floor heating device and the heat exchange water inlet respectively. According to the multifunctional air source floor heating heat pump, the energy storage water tank is additionally arranged between the heat exchange water outlet and the inlet of the floor heating device, when the heating load in a room is increased, hot water which is obtained from the heat exchanger in a heat exchange mode can be stored and buffered, and the energy storage water tank can be made to be used as a standby heat source to meet the large-load heat demand of the room. Therefore, the phenomenon that a main engine is started or halted frequently to replenish energy is avoided, the service life of a heat pump set is prolonged, the energy saving effect is obvious, and the multifunctional air source floor heating heat pump can be suitable for the field of heat pumps.

Description

Multifunctional air source floor heating heat pump

technical field

The utility model relates to the field of heat pumps, in particular to a multifunctional air source ground heating heat pump.

Background technique

The geothermal heating system is a relatively comfortable, healthy and gradually popular heating method on the market. It has two main advantages. One is that the heating method is changed to underground, which facilitates the arrangement of buildings such as floor-to-ceiling windows and solves the heating problem in large spaces; Second, the use of low-temperature hot water heating brings the advantages of energy saving.

At present, the more widely used is the combination of floor heating heating and air source heat pump. The basic principle of ordinary air source heat pump unit to achieve floor heating is: the cold water in the floor heating pipe is transported to the condenser of the heat pump unit host through the water pump, and then directly transported through the pipeline after exchanging heat with the high-temperature and high-pressure refrigerant gas in the condenser Back into the underfloor heating pipes, and the underfloor heating pipes provide floor heating for the room by dissipating heat. However, when there are many people in the room and other heat loads increase, the ordinary air source heat pump unit cannot balance the temperature difference between the inlet and outlet water, resulting in large fluctuations in the water system, which makes the outlet water temperature of the unit fluctuate greatly, affecting the The comfort of underfloor heating in the room. At the same time, in order to meet the heat demand of the large load in the room, the unit usually starts and stops frequently to supplement the heat, which not only causes a very large loss to the unit, but also consumes a lot of energy.

Utility model content

In order to overcome the above technical problems, the purpose of this utility model is to provide a multi-functional air source floor heating heat pump that improves floor heating comfort and energy saving effect.

The technical scheme adopted in the utility model is:

A multifunctional air-source floor heating heat pump includes a heat pump system and a floor heating system. The heat pump system includes a heat exchanger for heating the floor heating system. The heat exchanger is provided with an inlet and an outlet for exchanged water. The floor heating system includes an energy storage water tank, a floor heating device and a water pump. The inlet and outlet of the energy storage water tank are respectively connected with the outlet of the water exchange water and the inlet of the floor heating device. The inlet and outlet of the water pump are respectively connected with the outlet of the floor heating device and the inlet of the water exchange water. connected.

As a further improvement of the above technical solution, the energy storage water tank is a horizontal insulated water tank with at least two heat storage tanks connected in series, and the inlet and outlet of the energy storage water tank are respectively located on the heat storage tanks at both ends.

As a further improvement of the above technical solution, an expansion tank is connected to the energy storage water tank, and the expansion tank communicates with the inside of the energy storage water tank.

As a further improvement of the above technical solution, the heat pump system includes a compressor, a four-way valve, a first throttling device, a first heat exchanger, a second throttling device and a second heat exchanger placed indoors, the The port D of the four-way valve communicates with the outlet of the compressor, the refrigerant inlet of the heat exchanger communicates with the port C of the four-way valve, and the port E of the four-way valve communicates with one end of the first heat exchanger, so The first throttling device is connected in series on the connecting pipeline between the other end of the first heat exchanger and the refrigerant outlet of the heat exchanger, and the port S of the four-way valve communicates with the air return port of the compressor; the first heat exchanger The device is connected in series on the connecting pipe between the inlet end of the second throttling device and the four-way valve interface E, and the second throttling device is connected in series on the connecting pipe between the first heat exchanger and the second heat exchanger, and the second The outlet port of the heat exchanger communicates with port C of the four-way valve.

As a further improvement of the above technical solution, the first heat exchanger is a refrigerant-air heat exchanger.

As a further improvement of the above technical solution, the second heat exchanger is a refrigerant-air heat exchanger.

As a further improvement of the above technical solution, the first throttling device is a thermal expansion valve or an electronic expansion valve.

As a further improvement of the above technical solution, the second throttling device is a thermal expansion valve or an electronic expansion valve.

The beneficial effects of the utility model are: the utility model adds an energy storage water tank between the water exchange outlet and the floor heating device, and when the heat load of the room increases, the hot water exchanged in the heat exchanger can be stored. It can buffer, thereby playing the role of balancing and stabilizing the temperature difference between the inlet and outlet water. On the one hand, it avoids large fluctuations in the water system, making the fluctuations in the outlet water temperature small, thereby improving the comfort of room floor heating; on the other hand, the energy storage tank is used as a storage The energy device can be used as a backup heat source to meet the heat demand of the large load in the room, thereby avoiding the frequent start and stop of the host to supplement the heat, which not only prolongs the service life of the heat pump unit, but also has a significant energy saving effect.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model.

Detailed ways

As shown in Figure 1, a multifunctional air source ground heating heat pump includes a heat pump system and a floor heating system. The heat pump system includes a heat exchanger 1 for heating the floor heating system. The heat exchanger 1 is a water-refrigerant heat exchanger, which provides hot water for the floor heating system through the heat exchange between the refrigerant and water. Therefore, the heat exchanger 1 is equipped with Exchange water inlet and exchange water outlet. The floor heating unit includes an energy storage water tank 2, a floor heating device 3 and a water pump 4 connected sequentially through pipelines. The inlet and outlet of the energy storage water tank 2 are respectively connected with the outlet of the exchange water and the inlet of the floor heating device 3. The inlet and outlet of the water pump 4 are respectively connected with the floor heating The outlet of the device 3 and the inlet of the exchange water are connected. Therefore, the heat exchanger 1, the energy storage water tank 2, the floor heating device 3 and the water pump 4 form a closed loop. In a preferred embodiment, the floor heating device 3 is a floor heating pipe.

In this embodiment, an energy storage water tank 2 is added between the outlet of the heat exchange water and the inlet of the floor heating device 3. When the heat load of the room increases, energy storage and buffering can be performed on the hot water exchanged in the heat exchanger 1, thereby It plays the role of balancing and stabilizing the temperature difference between the inlet and outlet water. On the one hand, it avoids large fluctuations in the water system, so that the fluctuations in the outlet water temperature are small, thereby improving the comfort of room floor heating; on the other hand, the energy storage tank 2 is used as an energy storage device. It can be used as a backup heat source to meet the heat demand of the large load in the room, so as to avoid the frequent start and stop of the host to supplement the heat, which not only prolongs the service life of the heat pump unit, but also has a significant energy saving effect.

In this embodiment, the energy storage water tank 2 is a horizontal insulated water tank with two heat storage tanks connected in series. The inlet and outlet of the energy storage water tank 2 are respectively located on the two heat storage tanks. Only the inner cavity of the heat storage tank can flow out of the energy storage water tank 2. During installation, the energy storage water tank 2 and the main body of the heat pump unit are installed on a frame.

In this embodiment, the energy storage water tank 2 is connected with an expansion tank 5, and the expansion tank 5 communicates with the inside of the energy storage water tank 2, and mainly plays a role of buffering the pressure fluctuation of water in the floor heating unit.

In this embodiment, the heat pump system includes a compressor 6, a four-way valve 7, a first throttling device 8, a first heat exchanger 9, a second throttling device 10 and a second A heat exchanger 11, the port D of the four-way valve 7 communicates with the outlet of the compressor 6, the refrigerant inlet of the heat exchanger 1 communicates with the port C of the four-way valve 7, and the port of the four-way valve 7 E communicates with one end of the first heat exchanger 9, the first throttling device 8 is connected in series on the connecting pipeline between the other end of the first heat exchanger 9 and the refrigerant outlet of the heat exchanger 1, and the four-way valve 7 The interface S communicates with the air return port of the compressor 6; the first heat exchanger 9 is connected in series on the connecting pipeline between the inlet port of the second throttling device 10 and the interface E of the four-way valve 7, and the second throttling device 10 It is connected in series on the connecting pipe between the first heat exchanger 9 and the second heat exchanger 11 , and the outlet end of the second heat exchanger 11 communicates with the interface C of the four-way valve 7 . The first heat exchanger 9 is a refrigerant-air heat exchanger, and the second heat exchanger 11 is a refrigerant-air heat exchanger.

The heating process of the heat pump system is as follows: the compressor 6 works, and the high-temperature and high-pressure refrigerant gas is discharged into the interface D of the four-way valve 7. C flows out and enters the heat exchanger 1 for heat exchange with water to be heated, and becomes a low-temperature and high-pressure refrigerant liquid after heat exchange; the low-temperature and high-pressure refrigerant liquid enters the first heat exchanger after being depressurized by the first throttling device 8 Heater 9, after being evaporated by the first heat exchanger 9, becomes low-temperature and low-pressure gas. The low-temperature and low-pressure gas flows into the interface E of the four-way valve 7 and is discharged from the interface S to be inhaled by the air return port of the compressor 6, which constitutes the heating of the fluorine circuit. cycle. During this process, the cold water in the floor heating pipe enters the heat exchanger 1 through the water pump 4 to exchange heat with the high-temperature and high-pressure refrigerant gas, and then becomes hot water. The hot water flows into the energy storage tank 2 for buffer storage, and then The flow returns to the floor heating pipe, and then the floor heating pipe realizes the floor heating of the room by dissipating the heat of the hot water in the pipe.

The refrigeration process of the heat pump system is as follows: the compressor 6 works, and the high-temperature and high-pressure refrigerant gas is discharged into the interface D of the four-way valve 7. After the four-way valve 7 is powered on, the high-temperature and high-pressure refrigerant gas is discharged from the interface E and enters the first The inside of the first heat exchanger 9 performs heat exchange, and after the heat exchange, it becomes a low-temperature and high-pressure refrigerant liquid. The low-temperature and low-pressure gas flows through the port C of the four-way valve 7 and then is discharged from the port S and sucked by the air return port of the compressor 6, forming a refrigerating cycle of the fluorine circuit. During this process, because the second heat exchanger 11 is placed in the room, it can absorb the heat inside the room for evaporation, thereby achieving the purpose of fast cooling and fast dehumidification of the room.

Due to the fluorine removal system used in the cooling operation of the air source floor heating heat pump unit, it is different from the water system in which the unit usually goes through such a complicated process of cooling the refrigerant in the system first, and then cooling the water inside the end of the room. When cooling, only need The coolant of the cooling system can provide cold energy to the room, and the needs of rapid cooling and rapid dehumidification of the room can be realized. In addition to increasing the cost of the booster pump, the cost performance of the unit is improved.

In this embodiment, the first throttling device 8 and the second throttling device 10 are thermal expansion valves or electronic expansion valves.

The above descriptions are only preferred implementations of the present utility model, and they do not constitute a limitation to the protection scope of the present utility model.

Claims (8)

1. multifunctional air source floor heating heat pump, it is characterized in that: comprise heat pump and ground heating system, described heat pump is included as the heat exchanger (1) of ground heating system heat supply, described heat exchanger (1) is provided with heat-exchanging water import and heat-exchanging water outlet, described ground heating system comprises energy-accumulating water tank (2), floor heating device (3) and water pump (4), the import of described energy-accumulating water tank (2) and outlet export with heat-exchanging water respectively, floor heating device (3) entrance is communicated with, and the import of described water pump (4) and outlet export with floor heating device (3) respectively, the heat-exchanging water import is communicated with.

2. multifunctional air source floor heating heat pump according to claim 1, it is characterized in that: described energy-accumulating water tank (2) is for having the Horizontal thermal insulation water tank of at least two heat storage cans that are in series, and the import of described energy-accumulating water tank (2) and outlet lay respectively on the heat storage can at two ends.

3. multifunctional air source floor heating heat pump according to claim 1 and 2 is characterized in that: be connected to expansion drum (5) on the described energy-accumulating water tank (2), described expansion drum (5) connection energy-accumulating water tank (2) inside.

4. multifunctional air source floor heating heat pump according to claim 1, it is characterized in that: described heat pump comprises compressor (6), cross valve (7), first throttle device (8), First Heat Exchanger (9), the second throttling arrangement (10) and be placed on indoor the second heat exchanger (11), the interface D of described cross valve (7) communicates with the outlet of compressor (6), the refrigerant inlet of described heat exchanger (1) communicates with the interface C of cross valve (7), the interface E of described cross valve (7) communicates with an end of First Heat Exchanger (9), described first throttle device (8) is connected on the connecting line of the other end of First Heat Exchanger (9) and heat exchanger (1) refrigerant outlet, and the interface S of described cross valve (7) communicates with the gas returning port of compressor (6); Described First Heat Exchanger (9) is connected on the connecting pipe of the second throttling arrangement (10) arrival end and cross valve (7) interface E, described the second throttling arrangement (10) is connected on the connecting pipe of First Heat Exchanger (9) and the second heat exchanger (11), and the port of export of described the second heat exchanger (11) communicates with the interface C of cross valve (7).

5. the multifunctional air source floor heating heat pump of stating according to claim 4 is characterized in that: described First Heat Exchanger (9) is cold-producing medium-air heat exchanger.

6. according to claim 4 or the 5 multifunctional air source floor heating heat pumps of stating, it is characterized in that: described the second heat exchanger (11) is cold-producing medium-air heat exchanger.

7. the multifunctional air source floor heating heat pump of stating according to claim 4 is characterized in that: described first throttle device (8) is heating power expansion valve or electric expansion valve.

8. according to claim 4 or the 5 multifunctional air source floor heating heat pumps of stating, it is characterized in that: described the second throttling arrangement (10) is heating power expansion valve or electric expansion valve.