阅读说明：本技术 一种多功能热泵热水机组 (multifunctional heat pump water heater set ) 是由 陈勇良 梁伟钊 于 2019-08-07 设计创作，主要内容包括：本发明公开了一种多功能空调热泵热水机组,包括压缩机1、三通阀2、四通阀3、第一换热器4、第三电磁阀5、第一电子膨胀阀6、第一电磁阀7、第二换热器8、气液分离器9、第二电子膨胀阀10、第三换热器11、第二电磁阀12及风机13,所述的多功能空调热泵热水机组能实现多种模式运行：制冷制热水、制热水、制冷、制热、制热制热水和除霜的六种模式循环。采用本发明能够适应冷热和热水等不同需求,实现综合冷热利用,设备年利用率最大化,年均节能效率最大化的目标,同时解决了在不同模式下除霜可靠性的问题及同时制热制热水的需求。(The invention discloses an multifunctional air-conditioning heat pump hot water unit, which comprises a compressor 1, a three-way valve 2, a four-way valve 3, a heat exchanger 4, a third electromagnetic valve 5, a electronic expansion valve 6, a electromagnetic valve 7, a second heat exchanger 8, a gas-liquid separator 9, a second electronic expansion valve 10, a third heat exchanger 11, a second electromagnetic valve 12 and a fan 13, and can realize the operation in multiple modes, namely six mode circulation of refrigeration and heating water, refrigeration, heating and heating water and defrosting.)

1, a multifunctional air-conditioning heat pump hot water unit, including a compressor (1), a three-way valve (2), a four-way valve (3), a heat exchanger (4), a third solenoid valve (5), a electronic expansion valve (6), a solenoid valve (7), a second heat exchanger (8), a gas-liquid separator (9), a second electronic expansion valve (10), a third heat exchanger (11), a second solenoid valve (12) and a fan (13), wherein the exhaust pipe of the compressor is connected with an a interface of the three-way valve, a B interface of the three-way valve is connected with a d interface of the four-way valve, a C interface of the four-way valve is divided into 2 paths, which are respectively connected with ends of the heat exchanger and the third solenoid valve, another end of the heat exchanger is connected with 356 electronic end, another end of the electronic expansion valve is divided into 2 paths, path is connected with a solenoid valve solenoid valve, another path is connected with the second electronic expansion valve, another 5 end of the heat exchanger is connected with the second solenoid valve, another end of the heat exchanger is connected with a gas-liquid separator end of the second solenoid valve, an inlet port of the three-way valve is connected with of the heat exchanger, and an inlet port of the three-liquid separator is connected with of the heat exchanger, the heat exchanger is connected with:

the exhaust pipe of the compressor is connected with an interface A of the three-way valve, an interface B of the three-way valve is connected with an interface d of the four-way valve, an interface C of the four-way valve is divided into 2 paths which are respectively connected with ends of an -th heat exchanger and a third electromagnetic valve, the other end of a -th heat exchanger is connected with an end of an -th electronic expansion valve, the other 5 end of an -th electronic expansion valve is divided into two paths, a -6 path is connected with a -th electromagnetic valve, the other -th path is connected with a second electronic expansion valve, the other end of a -th electromagnetic valve is connected with the second heat exchanger, the other end of the second heat exchanger is connected with an e-interface of the four-way valve, an s-interface of the four-way valve is connected with an inlet of the gas-liquid separator and an end -end of the second electromagnetic valve, an outlet of the gas-liquid separator is connected with an air return port of the compressor.

2. The multifunctional air-conditioning heat pump water heater unit according to claim 1, wherein the th heat exchanger (4) is a high-efficiency tank-and-tube heat exchanger, a plate heat exchanger or a coaxial sleeve heat exchanger, and is used with a circulating water pump.

3. The multifunctional air-conditioning heat pump water heater unit according to claim 1 or 2, wherein the second heat exchanger (8) is a finned tube heat exchanger used with a fan.

4. The multifunctional air-conditioning heat pump water heater unit according to claim 1, wherein the third heat exchanger (11) is a water tank with a coil, or a high-efficiency tank tube heat exchanger, or a plate heat exchanger, or a coaxial sleeve heat exchanger, and is used with a circulating water pump.

5. The kinds of multifunctional air-conditioning heat pump water heater unit according to claim 1, wherein the multifunctional heat pump water heater unit can realize multi-mode operation including six mode circulation of cooling and heating water, cooling, heating and heating water, and defrosting, and the control modes of the switches of the electrical appliances and the flow of the refrigerant in various modes are as follows:

(1) the refrigerant flow path is that the compressor → the three-way valve → a third heat exchanger (heating water) → a second electronic expansion valve → a electronic expansion valve → a heat exchanger (refrigeration) → a four-way valve → the compressor;

(2) the refrigerant flow path is that the compressor → the three-way valve → the third heat exchanger (hot water making) → the second electronic expansion valve → the solenoid valve → the second heat exchanger (heat absorption) → the four-way valve → the compressor;

(3) in the refrigeration process, a compressor is switched on, a coil of a three-way valve is not electrified, a coil of a four-way valve is electrified, a fan is switched on, a coil of a solenoid valve is electrified, coils of a second solenoid valve and a third solenoid valve are not electrified, a electronic expansion valve is opened and adjusted, and a second electronic expansion valve is closed;

(4) heating, namely, turning on a compressor, not electrifying a three-way valve coil and a four-way valve coil, turning on a fan, electrifying a coil of an th electromagnetic valve, not electrifying coils of a second electromagnetic valve and a third electromagnetic valve, opening and adjusting a st electronic expansion valve, and closing a second electronic expansion valve, wherein in the refrigerant flow process, the compressor → the three-way valve → the four-way valve → a th heat exchanger (heat release) → a th electronic expansion valve → a th electronic electromagnetic valve → a second heat exchanger (heat absorption) → the four-way valve → a gas-liquid separator →;

(5) in the heating and water heating mode, the compressor is switched on, the coil of the three-way valve and the coil of the four-way valve are not electrified, the fan is switched on, the coils of the solenoid valve and the third solenoid valve are electrified, the coil of the second solenoid valve is not electrified, the electronic expansion valve is opened and adjusted, and the second electronic expansion valve is opened and adjusted;

(6) in the defrosting mode, the compressor is switched on, the coil of the three-way valve is not electrified, the coil of the four-way valve is electrified, the coil of the air blower, the th electromagnetic valve and the coil of the second electromagnetic valve are electrified, the coil of the third electromagnetic valve is not electrified, the electronic expansion valve is closed, and the second electronic expansion valve is opened to the maximum, and the refrigerant flow path is that the compressor → the three-way valve → the four-way valve → the second heat exchanger (heat release and frost removal) → the th electromagnetic valve → the second electronic expansion valve → the third heat exchanger (heat absorption) → the second electromagnetic valve →.

Technical Field

The invention relates to the technical field of refrigeration air conditioners, heat pump water heaters and energy conservation.

Background

The existing heat pump air-conditioning water heater unit uses a double four-way valve to control the switching between modes, such as the patent of publication No. CN101788208A, although the switching between multiple functions can be realized, but a water refrigerant heat exchanger is needed to be used in the defrosting condition, if no water exists or the water temperature is very low during defrosting, the risk of incomplete defrosting or freezing a water channel is easy to exist, four-way valves and three-way valves are also used for realizing the switching between multiple modes, such as the patent of publication No. CN102313326A, but the patent of the patent needs to absorb heat from the indoor during the defrosting cycle, even if the water heating condition is needed, the heat is absorbed from the indoor side, the quantity of refrigerant in each heat exchanger or pipeline is not due to the mode switching, so that the defrosting effect is influenced, and the patent of application No. 201710368017.6 also uses four-way valves and three-way valves to realize the switching between multiple modes, but the simultaneous heating and water heating operation can not be realized, and the requirement that both hot.

Disclosure of Invention

In order to enable the multifunctional air-conditioning heat pump hot water unit to enter the market and play a role in energy conservation, the defects in the prior art need to be overcome, the multifunctional air-conditioning heat pump hot water unit provided by the invention has the advantages that the structure is optimized, the reliability of mode switching is improved, the defrosting effect is better improved, and meanwhile, the multifunctional air-conditioning heat pump hot water unit can better meet the multi-mode requirements of various application scenes.

The technical scheme adopted by the invention is as follows:

the multifunctional air-conditioning heat pump hot water unit comprises a compressor 1, a three-way valve 2, a four-way valve 3, a heat exchanger 4, a third solenoid valve 5, a electronic expansion valve 6, a solenoid valve 7, a second heat exchanger 8, a gas-liquid separator 9, a second electronic expansion valve 10, a third heat exchanger 11, a second solenoid valve 12 and a fan 13, wherein an exhaust pipe of the compressor is connected with an interface A of the three-way valve, an interface B of the three-way valve is connected with an interface d of the four-way valve, an interface C of the four-way valve is divided into 2 paths which are respectively connected with ends of the heat exchanger and the third solenoid valve, the other port end of the heat exchanger is connected with an end of the 5 electronic expansion valve 636, the other port of the electronic expansion valve is divided into two paths, the path is connected with the solenoid valve, the other path is connected with the second electronic expansion valve, the other port end of the solenoid valve is connected with the second heat exchanger, the other port of the other port end of the second heat exchanger is connected with an interface e interface of the four-way valve, the inlet of the four-way valve is connected with the gas-liquid separator of the gas-liquid separator, the third.

The exhaust pipe of the compressor is connected with an interface A of the three-way valve, an interface B of the three-way valve is connected with an interface d of the four-way valve, an interface C of the four-way valve is divided into 2 paths which are respectively connected with ends of an -th heat exchanger and a third electromagnetic valve, the other end of a -th heat exchanger is connected with an end of an -th electronic expansion valve, the other 5 end of an -th electronic expansion valve is divided into two paths, a -6 path is connected with a -th electromagnetic valve, the other -th path is connected with a second electronic expansion valve, the other end of a -th electromagnetic valve is connected with the second heat exchanger, the other end of the second heat exchanger is connected with an e-interface of the four-way valve, an s-interface of the four-way valve is connected with an inlet of the gas-liquid separator and an end -end of the second electromagnetic valve, an outlet of the gas-liquid separator is connected with an air return port of the compressor.

The th heat exchanger is a high-efficiency tank-tube heat exchanger, a plate heat exchanger or a coaxial sleeve heat exchanger and is matched with a circulating water pump, the second heat exchanger is a finned tube heat exchanger and is matched with a fan for use, and the third heat exchanger is a water tank with a coiled tube, or a high-efficiency tank-tube heat exchanger, a plate heat exchanger or a coaxial sleeve heat exchanger and is matched with the circulating water pump for use.

The multifunctional heat pump water heater unit can realize the operation in multiple modes: six modes of refrigeration and hot water making, refrigeration, heating, hot water making and defrosting are circulated; the control modes of the switch of the electric appliance and the refrigerant flow in various modes are respectively as follows:

(1) the refrigerant flow path is that the compressor → the three-way valve → a third heat exchanger (heating water) → a second electronic expansion valve → a electronic expansion valve → a heat exchanger (refrigeration) → a four-way valve → the compressor;

(2) the refrigerant flow path is that the compressor → the three-way valve → the third heat exchanger (hot water making) → the second electronic expansion valve → the solenoid valve → the second heat exchanger (heat absorption) → the four-way valve → the compressor;

(3) in the refrigeration process, a compressor is switched on, a coil of a three-way valve is not electrified, a coil of a four-way valve is electrified, a fan is switched on, a coil of a solenoid valve is electrified, coils of a second solenoid valve and a third solenoid valve are not electrified, a electronic expansion valve is opened and adjusted, and a second electronic expansion valve is closed;

(4) heating, namely, turning on a compressor, not electrifying a three-way valve coil and a four-way valve coil, turning on a fan, electrifying a coil of an th electromagnetic valve, not electrifying coils of a second electromagnetic valve and a third electromagnetic valve, opening and adjusting a st electronic expansion valve, and closing a second electronic expansion valve, wherein in the refrigerant flow process, the compressor → the three-way valve → the four-way valve → a th heat exchanger (heat release) → a th electronic expansion valve → a th electronic electromagnetic valve → a second heat exchanger (heat absorption) → the four-way valve → a gas-liquid separator →;

(5) in the heating and water heating mode, the compressor is switched on, the coil of the three-way valve and the coil of the four-way valve are not electrified, the fan is switched on, the coils of the solenoid valve and the third solenoid valve are electrified, the coil of the second solenoid valve is not electrified, the electronic expansion valve is opened and adjusted, and the second electronic expansion valve is opened and adjusted;

(6) in the defrosting mode, the compressor is switched on, the coil of the three-way valve is not electrified, the coil of the four-way valve is electrified, the coil of the air blower, the th electromagnetic valve and the coil of the second electromagnetic valve are electrified, the coil of the third electromagnetic valve is not electrified, the electronic expansion valve is closed, and the second electronic expansion valve is opened to the maximum, and the refrigerant flow path is that the compressor → the three-way valve → the four-way valve → the second heat exchanger (heat release and frost removal) → the th electromagnetic valve → the second electronic expansion valve → the third heat exchanger (heat absorption) → the second electromagnetic valve →.

The multifunctional heat pump water heater unit disclosed by the invention can adapt to different requirements of cold and hot water and the like, realizes the aims of comprehensive cold and heat utilization, equipment annual utilization rate maximization and annual average energy-saving efficiency maximization, and simultaneously solves the problem of defrosting reliability in different modes and the requirement of heating and heating hot water.

Drawings

Fig. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the refrigeration and heating water of an embodiment of the invention.

Fig. 3 is a schematic diagram of heating water in accordance with an embodiment of the present invention.

Fig. 4 is a schematic diagram of the refrigeration of an embodiment of the present invention.

Fig. 5 is a schematic diagram of heating of an embodiment of the present invention.

Fig. 6 is a schematic diagram of a heating and hot water system of an embodiment of the present invention.

Fig. 7 is a defrost diagram of an embodiment of the present invention.

The specific embodiment is as follows:

the structure and operation principle of the multifunctional air-conditioning water heater unit of the present invention will be further described in detail by way of embodiment with reference to fig. 1 to 7, but the invention is not limited to the drawings.

The multifunctional heat pump hot water unit comprises a compressor 1, a three-way valve 2, a four-way valve 3, a heat exchanger 4, a third solenoid valve 5, a electronic expansion valve 6, a solenoid valve 7, a second heat exchanger 8, a gas-liquid separator 9, a second electronic expansion valve 10, a third heat exchanger 11, a second solenoid valve 12 and a fan 13, wherein an exhaust pipe of the compressor is connected with an A interface of the three-way valve, a B interface of the three-way valve is connected with a d interface of the four-way valve, a C interface of the four-way valve is divided into 2 paths which are respectively connected with ends of the heat exchanger and the third solenoid valve, another end of the heat exchanger is connected with a 5 electronic expansion valve end, another end of electronic expansion valve is divided into two paths, a path is connected with the solenoid valve, another path is connected with the second electronic expansion valve, another end of the solenoid valve is connected with the second heat exchanger, another end of the second heat exchanger is connected with an e interface of the four-way valve, an inlet of the four-way valve is connected with an inlet of the gas-liquid separator of the second solenoid valve, an outlet of the gas-liquid separator is connected with an outlet port of the second solenoid valve, another 465 port of the heat exchanger is connected with another port.

The th heat exchanger is a high-efficiency tank-tube heat exchanger, a plate heat exchanger or a coaxial sleeve heat exchanger and is matched with a circulating water pump, the second heat exchanger is a finned tube heat exchanger and is matched with a fan for use, and the third heat exchanger is a water tank with a coiled tube, or a high-efficiency tank-tube heat exchanger, a plate heat exchanger or a coaxial sleeve heat exchanger and is matched with the circulating water pump for use.

The multifunctional heat pump water heater unit can realize the operation in multiple modes: six modes of refrigeration and hot water making, refrigeration, heating, hot water making and defrosting are circulated; the control modes of the switch of the electric appliance and the refrigerant flow in various modes are respectively as follows:

(1) the refrigerant flow path comprises the compressor → the three-way valve → the third heat exchanger (heating water) → the second electronic expansion valve → the electronic expansion valve → the heat exchanger (refrigeration) → the four-way valve → the compressor.

(2) And the refrigerant flow path comprises the compressor → the three-way valve → the third heat exchanger (hot water making) → the second electronic expansion valve → the solenoid valve → the second heat exchanger (heat absorption) → the four-way valve → the compressor.

(3) And in the refrigeration process, the compressor is switched on, the coil of the three-way valve is not electrified, the coil of the four-way valve is electrified, the fan is switched on, the coil of the solenoid valve is electrified, the coils of the second solenoid valve and the third solenoid valve are not electrified, the electronic expansion valve is opened and regulated, and the second electronic expansion valve is closed, and the refrigerant flow path is that the compressor → the three-way valve → the four-way valve → the second heat exchanger (heat release) → the solenoid valve → the electronic expansion valve → the heat exchanger (refrigeration) → the four-way.

(4) Heating, wherein the compressor is switched on, the three-way valve coil and the four-way valve coil are not electrified, the fan is switched on, the coil of the th electromagnetic valve is electrified, the coils of the second electromagnetic valve and the third electromagnetic valve are not electrified, the st electronic expansion valve is opened and adjusted, the second electronic expansion valve is closed, and the refrigerant flow path comprises the compressor → the three-way valve → the four-way valve → the th heat exchanger (heat release) → the st electronic expansion valve → the st electronic electromagnetic valve → the second heat exchanger (heat absorption) → the four-way valve → the gas-liquid.

(5) In the heating and water heating mode, the compressor is switched on, the coil of the three-way valve and the coil of the four-way valve are not electrified, the fan is switched on, the coils of the electromagnetic valve and the third electromagnetic valve are electrified, the coil of the second electromagnetic valve is not electrified, the electronic expansion valve is opened and adjusted, and the second electronic expansion valve is opened and adjusted, and the refrigerant flow path comprises the compressor → the three-way valve → the four-way valve (divided by 2 paths) → () the heat exchanger (heating) → the electronic expansion valve, the → the (second) third electromagnetic valve → the third heat exchanger (heating water) → the second electronic expansion valve, the refrigerant flow path from the electronic expansion valve, the → the th electromagnetic valve → the second heat exchanger (heat absorption) → the four-way.

(6) In the defrosting mode, the compressor is switched on, the coil of the three-way valve is not electrified, the coil of the four-way valve is electrified, the coil of the air blower, the th electromagnetic valve and the coil of the second electromagnetic valve are electrified, the coil of the third electromagnetic valve is not electrified, the electronic expansion valve is closed, and the second electronic expansion valve is opened to the maximum, and the refrigerant flow path is that the compressor → the three-way valve → the four-way valve → the second heat exchanger (heat release and frost removal) → the th electromagnetic valve → the second electronic expansion valve → the third heat exchanger (heat absorption) → the second electromagnetic valve →.