Swimming pool heat pump system capable of simultaneously heating and refrigerating and control method of swimming pool heat pump system

Abstract

The invention relates to a swimming pool heat pump system capable of simultaneously heating and refrigerating. The swimming pool heat pump system is characterized by comprising a compressor, a four-way valve, a first heat exchanger, a first water pump, a first throttling valve, a one-way valve, an air side fin heat exchanger, a first electromagnetic valve, a second throttling valve, a second electromagnetic valve, a second heat exchanger, a second water pump and a fan, the swimming pool heat pump system has the advantages that the swimming pool heat pump system can heat and refrigerate at the same time, the energy utilization efficiency is improved, the simultaneous heating and refrigerating function, the independent heating function, the independent refrigerating function and the defrosting function can be achieved, and the functions are diversified.

Description

Technical Field

[0001] The invention relates to a swimming pool heat pump system capable of simultaneous heating and cooling and a control method thereof. Background Art

[0002] As a highly efficient and energy-saving water temperature regulation device, swimming pool heat pumps have been widely used in various swimming pool heating scenarios. They absorb low-grade heat energy from the ambient air, circulate it through the heat pump, and then use it to heat the pool water, significantly reducing the energy consumption costs of traditional gas or electric heating. However, existing swimming pool heat pump systems still have the following limitations: 1. When operating, swimming pool heat pump units can only produce hot water or cold water, and cannot meet the needs of producing hot water and cold water simultaneously; 2. In swimming pool heat pump systems, the water system can only utilize the heat source or cold source of the refrigerant in one heat exchanger flow path, while the heat source or cold source of the refrigerant in the other heat exchanger flow path cannot be utilized. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a swimming pool heat pump system and a control method thereof that can simultaneously heat and cool. The swimming pool heat pump system can simultaneously heat and cool, improve energy utilization efficiency, and can meet the functions of simultaneous heating and cooling, independent heating, independent cooling and defrosting, and has diverse functions.

[0004] To achieve the above objectives, the present invention is implemented as follows: a swimming pool heat pump system for simultaneous heating and cooling, comprising a compressor, a four-way valve, a first heat exchanger, and a first water pump; the compressor exhaust port is connected to port D of the four-way valve, and port C of the four-way valve is connected to port a of the first heat exchanger; one end of the first water pump is connected to an external hot water circuit, the other end of the first water pump is connected to port d of the first heat exchanger, and port c of the first heat exchanger is connected to an external hot water circuit; a first throttle valve, a one-way valve, and an air-side fin heat exchanger; port E of the four-way valve is connected to the inlet of the one-way valve, the outlet of the one-way valve is connected to one end of the air-side fin heat exchanger, port b of the first heat exchanger is connected to one end of the first throttle valve, and the other end of the first throttle valve is connected to one end of the air-side fin heat exchanger; a first solenoid valve, a second throttle valve, a second solenoid valve, and a second heat exchanger; the other end of the air-side fin heat exchanger is respectively connected to one end of the first solenoid valve, the second throttle valve, and the second solenoid valve; the other end of the first solenoid valve is connected to one end of the first throttle valve; the other end of the second solenoid valve is respectively connected to the suction port of the compressor, the S port of the four-way valve, and the b port of the second heat exchanger; the other end of the second throttle valve is connected to the a port of the second heat exchanger; A second water pump and a fan; one end of the second water pump is connected to the external cooling water circuit, the other end of the first water pump is connected to the d port of the first heat exchanger, and the c port of the first heat exchanger is connected to the external cooling water circuit; the fan enhances heat exchange for the air-side fin heat exchanger.

[0005] The present invention also provides a method for controlling a swimming pool heat pump system capable of simultaneous heating and cooling, wherein the method for controlling simultaneous heating and cooling is as follows: The first water pump and the second water pump are running to circulate the water circuit. The four-way valve is not energized, the fan is not running, the first solenoid valve is not energized, the second solenoid valve is not energized, the first throttle valve is fully open, the second throttle valve is adjusted according to logic, the compressor is started, and the first water-side heat exchanger is used to absorb the system heat source to heat the hot water circuit. The system cold source is used to absorb the heat source of the second water-side heat exchanger to cool the cooling water circuit.

[0006] In this embodiment, the control method for heating alone is as follows: The first water pump is running, and the second water pump is running on and off periodically to circulate the water circuit. The four-way valve is not energized, the fan is running, the second throttle valve is fully closed, the second solenoid valve is not energized, the first throttle valve is adjusted according to logic, the first solenoid valve is energized, the compressor is started, and the air-side fin heat exchanger is used to absorb the air heat source, and the first water-side heat exchanger absorbs the system heat source to heat the hot water circuit.

[0007] In this embodiment, the control method for independent cooling is as follows: The second water pump is running, and the first water pump is running on and off periodically to circulate the water circuit. The first throttle valve is fully closed, the four-way valve is energized, the fan is running, the first solenoid valve is not energized, the second solenoid valve is not energized, the second throttle valve is adjusted according to logic, the compressor is started, and the system cold source is used to absorb the heat source of the second water-side heat exchanger to cool the refrigeration water circuit.

[0008] In this embodiment, the control method of individual defrosting is as follows: The first water pump runs, the second water pump runs to circulate the water, the first throttle valve is fully closed, the second throttle valve is fully closed, the fan does not run, the first solenoid valve is not energized, the second solenoid valve is energized, the four-way valve is energized, the compressor starts, and the air-side fin heat exchanger is used to absorb the system heat source to complete coil defrosting.

[0009] The advantages of the present invention compared with the prior art are: the swimming pool heat pump system can heat and cool at the same time, improve energy utilization efficiency, and can meet the functions of simultaneous heating and cooling, independent heating, independent cooling and defrosting, and has diverse functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the swimming pool heat pump system of the present invention; Figure 2 This is a refrigerant flow diagram for the swimming pool heat pump system of the present invention for simultaneous heating and cooling; Figure 3 This is a refrigerant flow diagram for the swimming pool heat pump system used for independent heating; Figure 4 This is a refrigerant flow diagram for independent cooling of the swimming pool heat pump system of the present invention; Figure 5 This is a refrigerant flow diagram for independent defrosting of the swimming pool heat pump system of the present invention. DETAILED DESCRIPTION

[0011] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0012] In the description of the present invention, the terms "upper", "lower", "front" and "back" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0013] In the present invention, unless otherwise expressly specified or limited, the terms "connection" and "connected" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to mechanical connection, direct connection, or indirect connection through an intermediate medium; they may enable internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0014] like Figure 1 and Figure 5 As shown, it is a swimming pool heat pump system that can heat and cool at the same time, including: Compressor 1, four-way valve 2, first heat exchanger 3 and first water pump 4; the exhaust port of the compressor 1 is connected to port D of the four-way valve 2, and port C of the four-way valve 2 is connected to port a of the first heat exchanger 3; one end of the first water pump 4 is connected to the external hot water circuit, and the other end of the first water pump is connected to port d of the first heat exchanger 3, and port c of the first heat exchanger 3 is connected to the external hot water circuit; A first throttle valve 5, a one-way valve 6, and an air-side fin heat exchanger 7; port E of the four-way valve 2 is connected to the inlet of the one-way valve 6, the outlet of the one-way valve 6 is connected to one end of the air-side fin heat exchanger 7, port b of the first heat exchanger 3 is connected to one end of the first throttle valve 5, and the other end of the first throttle valve 5 is connected to one end of the air-side fin heat exchanger 7; A first solenoid valve 9, a second throttle valve 10, a second solenoid valve 11 and a second heat exchanger 12; the other end of the air-side fin heat exchanger 7 is respectively connected to one end of the first solenoid valve 9, the second throttle valve 10 and the second solenoid valve 11; the other end of the first solenoid valve 9 is connected to one end of the first throttle valve 5; the other end of the second solenoid valve 11 is respectively connected to the suction port of the compressor 1, the S port of the four-way valve 2 and the b port of the second heat exchanger 12; the other end of the second throttle valve 10 is connected to the a port of the second heat exchanger 12; A second water pump 13 and a fan 8; one end of the second water pump 13 is connected to the external cooling water circuit, the other end of the first water pump is connected to the d port of the first heat exchanger 3, and the c port of the first heat exchanger 3 is connected to the external cooling water circuit; the fan 8 enhances heat exchange for the air-side fin heat exchanger 7.

[0015] The swimming pool heat pump system can heat and cool at the same time, improve energy utilization efficiency, and can meet the functions of simultaneous heating and cooling, independent heating, independent cooling and defrosting, with diverse functions.

[0016] like Figure 2 As shown, the present invention also provides a control method for a swimming pool heat pump system capable of simultaneous heating and cooling, wherein the control method for simultaneous heating and cooling is as follows: The first water pump 4 and the second water pump 13 are running to circulate the water circuit. The four-way valve 2 is not energized, the fan 8 is not running, the first solenoid valve 9 is not energized, the second solenoid valve 11 is not energized, the first throttle valve 5 is fully opened, the second throttle valve 10 is adjusted according to logic, the compressor 1 is started, and the first water-side heat exchanger 3 is used to absorb the system heat source to heat the hot water circuit, and the system cold source is used to absorb the heat source of the second water-side heat exchanger 12 to cool the refrigeration water circuit.

[0017] like Figure 3 As shown, in this embodiment, the control method for heating alone is as follows: The first water pump 4 is running, and the second water pump 13 is periodically switched on and off to circulate the water circuit. The four-way valve 2 is not energized, the fan 8 is running, the second throttle valve 10 is fully closed, the second solenoid valve 11 is not energized, the first throttle valve 5 is adjusted according to logic, the first solenoid valve 9 is energized, the compressor 1 is started, and the air-side fin heat exchanger 7 is used to absorb the air heat source, and the first water-side heat exchanger 3 absorbs the system heat source to heat the hot water circuit.

[0018] like Figure 4 As shown, in this embodiment, the control method for independent cooling is as follows: The second water pump 13 is running, and the first water pump 4 is switched on and off periodically to circulate the water circuit. The first throttle valve 5 is fully closed, the four-way valve 2 is energized, the fan 8 is running, the first solenoid valve 9 is not energized, the second solenoid valve 11 is not energized, the second throttle valve 10 is adjusted according to logic, the compressor 1 is started, and the system cold source is used to absorb the heat source of the second water-side heat exchanger 12 to cool the refrigeration water circuit.

[0019] like Figure 5 As shown, in this embodiment, the defrosting control method is as follows: The first water pump 4 and the second water pump 13 are running to circulate the water circuit. The first throttle valve 5 is fully closed, the second throttle valve 10 is fully closed, the fan 8 is not running, the first solenoid valve 9 is not energized, the second solenoid valve 11 is energized, the four-way valve 2 is energized, the compressor 1 is started, and the air-side fin heat exchanger 7 is used to absorb the system heat source to complete the coil defrosting.

[0020] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments without departing from the principles and purpose of the present invention are still within the scope of protection of the present invention.

Claims

1. A swimming pool heat pump system capable of both heating and cooling, characterized in that include: A compressor (1), a four-way valve (2), a first heat exchanger (3) and a first water pump (4); the exhaust port of the compressor (1) is connected to the D port of the four-way valve (2), and the C port of the four-way valve (2) is connected to the a port of the first heat exchanger (3); one end of the first water pump (4) is connected to an external hot water circuit, the other end of the first water pump is connected to the d port of the first heat exchanger (3), and the c port of the first heat exchanger (3) is connected to the external hot water circuit; a first throttle valve (5), a one-way valve (6) and an air-side fin heat exchanger (7); the E port of the four-way valve (2) is connected to the inlet of the one-way valve (6), the outlet of the one-way valve (6) is connected to one end of the air-side fin heat exchanger (7), the b port of the first heat exchanger (3) is connected to one end of the first throttle valve (5), and the other end of the first throttle valve (5) is connected to one end of the air-side fin heat exchanger (7); a first solenoid valve (9), a second throttle valve (10), a second solenoid valve (11) and a second heat exchanger (12); the other end of the air-side fin heat exchanger (7) is respectively connected to one end of the first solenoid valve (9), the second throttle valve (10) and the second solenoid valve (11); the other end of the first solenoid valve (9) is connected to one end of the first throttle valve (5); the other end of the second solenoid valve (11) is respectively connected to the air intake port of the compressor (1), the S port of the four-way valve (2) and the b port of the second heat exchanger (12); the other end of the second throttle valve (10) is connected to the a port of the second heat exchanger (12); A second water pump (13) and a fan (8); one end of the second water pump (13) is connected to an external cooling water circuit, the other end of the first water pump is connected to the d port of the first heat exchanger (3), and the c port of the first heat exchanger (3) is connected to the external cooling water circuit; the fan (8) enhances heat exchange for the air-side fin heat exchanger (7).

2. The swimming pool heat pump system capable of simultaneous heating and cooling according to claim 1, characterized in that: The control method for simultaneous heating and cooling is as follows: The first water pump (4) is running, the second water pump (13) is running, the water circuit is circulated, the four-way valve (2) is not energized, the fan (8) is not running, the first solenoid valve (9) is not energized, the second solenoid valve (11) is not energized, the first throttle valve (5) is fully opened, the second throttle valve (10) is logically adjusted, the compressor (1) is started, the first water side heat exchanger (3) is used to absorb the system heat source to heat the hot water circuit, and the system cold source is used to absorb the heat source of the second water side heat exchanger (12) to cool the refrigeration water circuit.

3. The swimming pool heat pump system capable of simultaneous heating and cooling according to claim 1, characterized in that: The control method of separate heating is as follows: The first water pump (4) is running, the second water pump (13) is periodically switched on and off to circulate the water circuit, the four-way valve (2) is not energized, the fan (8) is running, the second throttle valve (10) is fully closed, the second solenoid valve (11) is not energized, the first throttle valve (5) is logically adjusted, the first solenoid valve (9) is energized, the compressor (1) is started, the air side fin heat exchanger (7) is used to absorb the air heat source, and the first water side heat exchanger (3) absorbs the system heat source to heat the hot water circuit.

4. The swimming pool heat pump system capable of simultaneous heating and cooling according to claim 1, characterized in that: The control method of separate cooling is as follows: The second water pump (13) is running, the first water pump (4) is periodically switched on and off to circulate the water circuit, the first throttle valve (5) is fully closed, the four-way valve (2) is energized, the fan (8) is running, the first solenoid valve (9) is not energized, the second solenoid valve (11) is not energized, the second throttle valve (10) is logically adjusted, the compressor (1) is started, and the system cold source is used to absorb the heat source of the second water-side heat exchanger (12) to cool the refrigeration water circuit.

5. The swimming pool heat pump system capable of simultaneous heating and cooling according to claim 1, characterized in that: The defrost control method is as follows: The first water pump (4) is running, the second water pump (13) is running, the water circuit is circulated, the first throttle valve (5) is fully closed, the second throttle valve (10) is fully closed, the fan (8) is not running, the first solenoid valve (9) is not energized, the second solenoid valve (11) is energized, the four-way valve (2) is energized, the compressor (1) is started, and the air-side fin heat exchanger (7) is used to absorb the system heat source to complete the coil defrosting.

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