Air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology

Abstract

This utility model belongs to the field of heating technology, specifically relating to an air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology. It includes an air source heat pump heating and cooling unit connected to a buffer water tank, which is connected to a first user end. It also includes a gas-fired heating and hot water boiler connected to the buffer water tank. This utility model, by incorporating a gas-fired heating and hot water boiler, can meet ultra-low temperature heating needs.

Description

Technical Field

[0001] This utility model belongs to the field of heating technology, specifically relating to an air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler. Background Technology

[0002] An air source heat pump is a type of heat pump water heater that uses air as a low-temperature heat source to produce domestic hot water. It mainly consists of two parts: an air source heat pump circulation system and a water storage tank. An air source heat pump water heater is a device that produces hot water by consuming some electrical energy to transfer heat from the air to the water.

[0003] However, when the ambient temperature is below the operating temperature limit of the air source heat pump, the heat pump's energy efficiency ratio is very poor, meaning it consumes a lot of electricity, and the outlet water temperature cannot reach the temperature required for heating. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing an air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology, including an air source heat pump heating and cooling unit, wherein the air source heat pump heating and cooling unit is connected to a buffer water tank, wherein the buffer water tank is connected to a first user end, and further including a gas-fired heating and hot water boiler, wherein the gas-fired heating and hot water boiler is connected to the buffer water tank.

[0006] In the aforementioned air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology, the gas-fired heating and hot water boiler is also connected to a second user terminal.

[0007] In the aforementioned air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology, the gas-fired heating and hot water boiler includes a first hot water boiler circulation loop and a second hot water boiler circulation loop. The first hot water boiler circulation loop includes a first hot water outlet pipe connected to the hot water outlet of the gas-fired heating and hot water boiler, which is connected to a buffer tank. The buffer tank is connected to the inlet of the gas-fired heating and hot water boiler via a first hot water return pipe. The second hot water boiler circulation loop includes a second hot water outlet pipe connected to the hot water outlet of the gas-fired heating and hot water boiler, and a second hot water return pipe connected to the inlet of the gas-fired heating and hot water boiler. The second hot water outlet pipe and the second hot water return pipe are interconnected, and a second user terminal is connected to the second hot water outlet pipe.

[0008] In the aforementioned air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology, the inlet of the gas-fired heating hot water boiler is also connected to a tap water inlet pipe, which is connected to a second user terminal.

[0009] In the aforementioned air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology, the second hot water return pipe is connected to the tap water inlet pipe, and a one-way valve is installed on the second hot water return pipe.

[0010] In the aforementioned air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology, the second user terminal includes a shower and a kitchen faucet.

[0011] In the aforementioned air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology, a first water pump and a first filter are sequentially installed between the inlet of the air source heat pump heating and cooling unit and the buffer water tank, and a second filter and a second water pump are sequentially installed between the outlet of the buffer water tank and the first user end.

[0012] In the aforementioned air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology, the first user end includes radiators, underfloor heating coils, and fan coil units.

[0013] In the aforementioned air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology, the inlet and outlet of the air source heat pump heating and cooling unit are respectively equipped with a first hose and a second hose, and the first hose and the second hose are respectively connected to a buffer water tank through pipes.

[0014] In the aforementioned air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology, an expansion tank is provided on the pipeline between the return water inlet of the buffer water tank and the first user end.

[0015] Compared with existing technologies, the advantages of this utility model are: by setting up a gas-fired heating hot water boiler, it can meet the heating needs of ultra-low temperature environments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1. Air source heat pump heating and cooling unit; 2. Buffer water tank; 3. First user terminal; 4. Gas-fired heating and hot water boiler; 5. Second user terminal; 6. One-way valve; 7. Shower; 8. Kitchen faucet; 9. First water pump; 10. First filter; 11. Second filter; 12. Second water pump; 13. Radiator; 14. Underfloor heating coil; 15. Fan coil unit; 16. First flexible hose; 17. Second flexible hose; 18. Expansion tank. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1As shown, an air source heat pump based on gas-fired wall-hung boiler auxiliary heating technology includes an air source heat pump heating and cooling unit 1, which is connected to a buffer water tank 2. The buffer water tank 2 is connected to a first user terminal 3. It also includes a gas-fired heating and hot water boiler 4, which uses natural gas combustion as a heat source. The gas-fired heating and hot water boiler 4 is connected to the buffer water tank 2. The buffer water tank 2 serves two purposes: storing water and acting as an expansion tank, absorbing the volume expansion of water in the system due to temperature changes. The first user terminal 3 includes radiators 13, underfloor heating coils 14, and fan coil units 15.

[0020] When the ambient temperature is below the operating temperature limit of the air source heat pump heating and cooling unit 1, the heat pump's energy efficiency ratio is very poor, meaning it consumes a lot of electricity, and the outlet water temperature still cannot reach the required heating temperature. At this time, the gas-fired heating and hot water boiler 4, which serves as an auxiliary heating system, starts working and combustion, and the hot water enters the buffer water tank 2 to meet the heating needs of the first user 3, achieving the effect of ultra-low temperature heating.

[0021] The gas-fired heating and hot water boiler 4 is also connected to a second user terminal 5, which includes a shower 7 and a kitchen faucet 8.

[0022] Specifically, the gas-fired heating and hot water boiler 4 includes a first hot water boiler circulation loop and a second hot water boiler circulation loop. The first hot water boiler circulation loop includes a first hot water outlet pipe 4a connected to the hot water outlet of the gas-fired heating and hot water boiler 4, which is connected to a buffer tank 2. The buffer tank 2 is connected to the inlet of the gas-fired heating and hot water boiler 4 via a first hot water return pipe 4b. The second hot water boiler circulation loop includes a second hot water outlet pipe 4c connected to the hot water outlet of the gas-fired heating and hot water boiler 4, and a second hot water return pipe 4d connected to the inlet of the gas-fired heating and hot water boiler 4. The second hot water outlet pipe 4c and the second hot water return pipe 4d are interconnected. A second user terminal 5 is connected to the second hot water outlet pipe. That is, the hot water source for the shower 7 and the kitchen faucet 8 is the gas-fired heating and hot water boiler 4.

[0023] The inlet of the gas-fired heating hot water boiler 4 is also connected to a tap water inlet pipe 4e, which is connected to the second user terminal 5 and is used to provide tap water.

[0024] To prevent tap water from flowing back to the second hot water outlet pipe 4c via the second hot water return pipe 4d, a one-way valve 6 is installed on the second hot water return pipe, which is connected to the tap water inlet pipe. Those skilled in the art should understand that the one-way valve 6 should be located at the connection point between the second hot water return pipe and the tap water inlet pipe to prevent tap water from flowing back into the second hot water outlet pipe 4c.

[0025] A first water pump 9 and a first filter 10 are sequentially installed between the water inlet of the air source heat pump heating and cooling unit 1 and the buffer water tank 2. A second filter 11 and a second water pump 12 are sequentially installed between the water outlet of the buffer water tank 2 and the first user terminal 3. The function of the first water pump 9 is to circulate the water in the buffer water tank 2 and the air source heat pump heating and cooling unit 1, and the function of the second water pump 12 is to circulate the water in the buffer water tank 2 and the first user terminal 3. The filters are used to filter out impurities.

[0026] The air source heat pump heating and cooling unit 1 has a first flexible hose 16 and a second flexible hose 17 at its inlet and outlet, respectively. The first flexible hose 16 and the second flexible hose 17 are connected to the buffer water tank 2 through pipes. The first flexible hose 16 and the second flexible hose 17 are a flexible connection to prevent the interface from loosening or breaking due to vibration during the operation of the air source heat pump heating and cooling unit 1.

[0027] An expansion tank 18 is installed on the pipe between the return water inlet of the buffer water tank 2 and the first user terminal 3. Since the first user terminal 3 includes radiator 13, underfloor heating coil 14 and fan coil 15, the water temperature returning from the first user terminal 3 to the buffer water tank 2 will continuously change when the number or status of these components is different, resulting in a corresponding change in the volume of the return water. The expansion tank 18 is actually used to buffer the flow. The expansion tank is equivalent to the existing expansion water tank and can be a commercially available product.

[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

Claims

1. An air source heat pump based on gas wall-hung boiler auxiliary heating technology, comprising an air source heat pump cooling and heating unit (1), the air source heat pump cooling and heating unit (1) is connected with a buffer water tank (2), the buffer water tank (2) is connected with a first user end (3), characterized in that, It also includes a gas-fired heating water heater (4), which is connected to a buffer water tank (2).

2. The air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler according to claim 1, characterized in that, The gas-fired heating hot water boiler (4) is also connected to a second user terminal (5).

3. The air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler according to claim 2, characterized in that, The gas-fired heating hot water boiler (4) includes a first hot water boiler circulation loop and a second hot water boiler circulation loop. The first hot water boiler circulation loop includes a first hot water outlet pipe connected to the hot water outlet of the gas-fired heating hot water boiler (4), and the first hot water outlet pipe is connected to a buffer water tank (2). The buffer water tank (2) is connected to the inlet of the gas-fired heating hot water boiler (4) through a first hot water return pipe. The second hot water boiler circulation loop includes a second hot water outlet pipe connected to the hot water outlet of the gas-fired heating hot water boiler (4) and a second hot water return pipe connected to the inlet of the gas-fired heating hot water boiler (4). The second hot water outlet pipe and the second hot water return pipe are connected to each other. A second user terminal (5) is connected to the second hot water outlet pipe.

4. The air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler according to claim 3, characterized in that, The inlet of the gas-fired heating hot water boiler (4) is also connected to a tap water inlet pipe, which is connected to the second user terminal (5).

5. The air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler according to claim 4, characterized in that, The second hot water return pipe is connected to the tap water inlet pipe, and a one-way valve (6) is provided on the second hot water return pipe.

6. The air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler according to claim 2, characterized in that, The second user terminal (5) includes a shower (7) and a kitchen faucet (8).

7. The air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler according to claim 1, characterized in that, The air source heat pump heating and cooling unit (1) is provided with a first water pump (9) and a first filter (10) between the water inlet and the buffer water tank (2), and a second filter (11) and a second water pump (12) are provided between the water outlet of the buffer water tank (2) and the first user end (3).

8. The air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler according to claim 1, characterized in that, The first user terminal (3) includes a heat sink (13), a floor heating coil (14), and a fan coil unit (15).

9. The air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler according to claim 1, characterized in that, The air source heat pump heating and cooling unit (1) is provided with a first hose (16) and a second hose (17) at its inlet and outlet, respectively. The first hose (16) and the second hose (17) are respectively connected to the buffer water tank (2) through pipes.

10. The air source heat pump based on auxiliary heating technology of a gas-fired wall-hung boiler according to claim 1, characterized in that, An expansion tank (18) is provided on the pipeline between the return water inlet of the buffer water tank (2) and the first user end (3).

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