CN211782077U

CN211782077U - Air conditioner heat pump hot water system

Info

Publication number: CN211782077U
Application number: CN202020215045.1U
Authority: CN
Inventors: 喻宝生; 张树前; 孙建良; 王磊
Original assignee: Zhejiang Zhongguang Electric Appliances Co Ltd
Current assignee: Zhejiang Zhongguang Electric Appliance Group Co Ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2020-10-27
Anticipated expiration: 2030-02-26

Abstract

The utility model provides an air conditioner heat pump hot water system belongs to refrigeration air conditioner and heat pump technical field. It has solved the unreasonable scheduling problem of prior art design. The air conditioner heat pump hot water system comprises a heat pump hot water subsystem and an air conditioner subsystem, wherein the heat pump hot water subsystem comprises a compressor I, a double four-way valve assembly, a wind side heat exchanger I, a hot water side heat exchanger, an air conditioner side heat exchanger and a throttling element I, the hot water side heat exchanger is communicated with a water tank through a hot water side water inlet pipe and a hot water side water outlet pipe, a hot water pump is arranged on the hot water side water inlet pipe and/or the hot water side water outlet pipe, and the air conditioner side heat exchanger is communicated with a user use side heat exchanger in an air conditioner through an air conditioner. This air conditioner heat pump hot water system's advantage lies in: the water heater solves the problems of installation land occupation and high investment and operation cost in areas needing refrigeration, heating and hot water due to the adoption of an air conditioner and a water heater, and solves the problem that heating and hot water cannot be realized in the true sense at present.

Description

Air conditioner heat pump hot water system

Technical Field

The utility model relates to a refrigeration air conditioner and heat pump technical field especially relate to a collect refrigeration, heat, system hot water as an organic whole to can heat simultaneously and system hot water, or cool simultaneously and system hot water's trigeminy supplies system.

Background

The existing air-conditioning heat pump hot water unit, namely a triple supply unit, is not a true triple supply unit, but only divides hot water from a condenser into two paths in a heating mode on an air-conditioning cold and hot water unit, one path is connected with an air disc for heating, the other path is connected with a water tank for supplying domestic hot water, but refrigeration can not be realized while heating water, and some triple supply units have refrigeration, heating and hot water heating functions, but can not realize hot water while heating.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a solve air conditioner heat pump hot water system of above-mentioned problem.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the utility model discloses an air conditioner heat pump hot water system, including heat pump hot water subsystem and air conditioner subsystem, heat pump hot water subsystem includes compressor one, two cross valve subassemblies, wind side heat exchanger one, hot water side heat exchanger, air conditioner side heat exchanger and throttle part one, the hot water side heat exchanger is through hot water side inlet tube and hot water side outlet pipe and water tank intercommunication, be equipped with the hot water pump on hot water side inlet tube and/or the hot water side outlet pipe, air conditioner side heat exchanger is through air conditioner side inlet tube and air conditioner side outlet pipe and user's use side heat exchanger intercommunication in the air conditioner, be equipped with the air conditioner water pump on air conditioner side inlet tube and/or the air conditioner side outlet pipe, two cross valve subassemblies are through first refrigerant house steward respectively with the last exhaust end and the suction end of compressor one, a refrigerant port on the hot water side heat exchanger, a refrigerant port on the first wind, the air-conditioning subsystem comprises a compressor II, a four-way valve III, a wind-side heat exchanger II and a throttle member II, the four-way valve III is respectively communicated with the compressor II, the wind-side heat exchanger II and the air-conditioning side heat exchanger, and the compressor II, the wind-side heat exchanger II and the throttle member II form another path for the circulation of the refrigerant.

In the air-conditioning heat pump hot water system, the double four-way valve assembly comprises a first four-way valve and a second four-way valve, the first four-way valve is respectively communicated with the exhaust end and the suction end of the first compressor, a port on the second four-way valve and a refrigerant port on the air-conditioning side heat exchanger, and the second four-way valve is respectively communicated with a port on the first four-way valve, a refrigerant port on the hot water side heat exchanger and a refrigerant port on the first air side heat exchanger.

In the air-conditioning heat pump hot water system, the refrigerant sub-pipe assembly includes a first refrigerant sub-pipe, a second refrigerant sub-pipe, a third refrigerant sub-pipe, a fourth refrigerant sub-pipe and a fifth refrigerant sub-pipe, the first refrigerant sub-pipe is disposed between another refrigerant port on the hot water side heat exchanger and one port of the first throttling element, the second refrigerant sub-pipe is disposed between another port of the first throttling element and another refrigerant port on the air-conditioning side heat exchanger, the third refrigerant sub-pipe is disposed between the second refrigerant sub-pipe and another refrigerant port on the first air side heat exchanger, the fourth refrigerant sub-pipe is disposed on the second refrigerant sub-pipe at a position between the third refrigerant sub-pipe and one end of another refrigerant port adjacent to the air-conditioning side heat exchanger, and the fifth refrigerant sub-pipe is disposed between the first refrigerant sub-pipe and the third refrigerant sub-pipe.

In the air-conditioning heat pump hot water system, the valve assembly includes an on-off valve subassembly composed of a valve with an on-off function, and the on-off valve subassembly includes a first electromagnetic valve disposed on the second refrigerant sub-pipe and a second electromagnetic valve disposed on the third refrigerant sub-pipe.

In the air-conditioning heat pump hot water system, the valve assembly further comprises a check valve subassembly for preventing the counter flow of the refrigerant, wherein the check valve subassembly comprises a first check valve arranged on the first refrigerant sub-pipe and only allowing the refrigerant to flow to the first throttling element, a second check valve arranged on the fifth refrigerant sub-pipe and only allowing the refrigerant to flow to the first refrigerant sub-pipe, a third check valve arranged on the third refrigerant sub-pipe and positioned between the second solenoid valve and the fifth refrigerant sub-pipe and only allowing the refrigerant to flow in the direction away from the second solenoid valve, a fourth check valve arranged on the fourth refrigerant sub-pipe and only allowing the refrigerant to flow to the first refrigerant sub-pipe, and a fifth check valve arranged on the second refrigerant sub-pipe and positioned between the first solenoid valve and the fourth refrigerant sub-pipe and only allowing the refrigerant to flow in the direction away from the first solenoid valve.

In the air-conditioning heat pump hot water system, the air supplementing assembly is arranged between the first refrigerant sub-pipe and the first refrigerant main pipe which is positioned between the double four-way valve assembly and the air suction end on the first compressor.

In the air-conditioning heat pump hot water system, the air supplement component comprises a refrigerant air supplement sub-pipe, the refrigerant air supplement sub-pipe is arranged between the first refrigerant sub-pipe and a first refrigerant main pipe between the double four-way valve component and the air suction end on the compressor I, and the refrigerant air supplement sub-pipe is sequentially provided with a third electromagnetic valve and a third throttling element towards the first refrigerant main pipe.

Compared with the prior art, this air conditioner heat pump hot water system's advantage lies in: the water heater solves the problems of installation land occupation and high investment and operation cost in areas needing refrigeration, heating and hot water due to the adoption of an air conditioner and a water heater, and solves the problem that heating and hot water cannot be realized in the true sense at present.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 provides a schematic diagram of the single refrigeration mode in the embodiment of the present invention.

Fig. 2 provides a flow chart of a single refrigeration mode in an embodiment of the present invention.

Fig. 3 provides a schematic diagram of the operation of a single heating mode in an embodiment of the present invention.

Fig. 4 provides a flow chart of a single heating mode in an embodiment of the invention.

Fig. 5 provides a schematic diagram of the operation of the single hot water mode in the embodiment of the present invention.

Fig. 6 provides a flow chart of a single hot water mode in an embodiment of the present invention.

Fig. 7 provides a working schematic diagram of the cooling and heating water modes in the embodiment of the present invention.

Fig. 8 provides a flow chart of a first operation flow in the cooling and heating water modes in the embodiment of the present invention.

Fig. 9 provides a flowchart of the second operation flow in the cooling and heating water mode in the embodiment of the present invention.

Fig. 10 provides a flow chart of the third operation flow in the cooling and heating water modes in the embodiment of the present invention.

Fig. 11 provides a flow chart of the fourth operation flow in the cooling and heating water mode in the embodiment of the present invention.

Fig. 12 provides a flow chart of the operation flow five in the cooling and heating water mode in the embodiment of the present invention.

Fig. 13 is a flow chart of a first standby flow in the cooling and heating water mode according to the embodiment of the present invention.

Fig. 14 is a flowchart of a standby flow in the cooling and heating water mode according to the embodiment of the present invention.

Fig. 15 is a flowchart of a third standby flow in the cooling and heating water mode according to the embodiment of the present invention.

Fig. 16 provides an operational schematic diagram of heating and hot water modes in an embodiment of the present invention.

Fig. 17 provides a flow chart of heating and hot water modes in an embodiment of the present invention.

In the figure, a heat pump hot water subsystem 1, an air-conditioning subsystem 2, a first refrigerant main pipe a, a second refrigerant main pipe b, a first compressor 101, a second compressor 102, a first four-way valve 201, a second four-way valve 202, a third four-way valve 203, a hot water side heat exchanger 301, a first wind side heat exchanger 302, a second wind side heat exchanger 303, a second air-conditioning side heat exchanger 304, a first fan 305, a second fan 306, a first throttling part 401, a second throttling part 402, a third throttling part 403, a first electromagnetic valve 501, a second electromagnetic valve 502, a third electromagnetic valve 503, a first one-way valve 601, a second one-way valve 602, a third one-way valve 603, a fourth one-way valve 604, a fifth one-way valve 605, a first reservoir 701, a second reservoir 702, a first gas-liquid separator 801, a second gas-liquid separator 802, a hot water side water inlet pipe 902, a hot water side water outlet pipe 903, an air-side water inlet pipe 904, a fourth refrigerant sub-pipe 909, a fifth refrigerant sub-pipe 910, and a gas supplement sub-pipe 911.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

As shown in fig. 1, 3, 5, 7 and 16, the air-conditioning heat pump hot water system comprises a heat pump hot water subsystem and an air-conditioning subsystem, wherein the heat pump hot water subsystem comprises a first compressor 101, a double four-way valve assembly, a first air-side heat exchanger 302, a first hot water-side heat exchanger 301, a first air-conditioning-side heat exchanger 304 and a first throttling element 401, the hot water-side heat exchanger 301 is communicated with a water tank through a hot water-side water inlet pipe 902 and a hot water-side water outlet pipe 903, a hot water pump is arranged on the hot water-side water inlet pipe 902 and/or the hot water-side water outlet pipe 903, the air-conditioning-side heat exchanger 304 is communicated with a user-using-side heat exchanger in an air conditioner through an air-conditioning-side water inlet pipe 904 and an air-conditioning-side water outlet pipe 905, an air-conditioning pump is arranged on the, One refrigerant port on the first air side heat exchanger 302 and one refrigerant port on the first air-conditioning side heat exchanger 304 are communicated, the other refrigerant port on the hot water side heat exchanger 301, the other refrigerant port on the first air side heat exchanger 302, the other refrigerant port on the first air-conditioning side heat exchanger 304 and the first throttling element 401 are connected through a refrigerant sub-pipeline assembly, a valve assembly is arranged on the refrigerant sub-pipeline assembly, any two of the first compressor 101, the first throttling element 401 and the three heat exchangers in the heat pump hot water subsystem form a passage for refrigerant circulation through the double four-way valve assembly and the valve assembly, the air-conditioning subsystem comprises a second compressor 102, a third four-way valve 203, a second air side heat exchanger 303 and a second throttling element 402, the third four-way valve 203 is respectively communicated with the second compressor 102, the second air side heat exchanger 303 and the first air-conditioning side heat exchanger 304, and the second throttling element 402 forms another passage for refrigerant circulation through a second refrigerant main pipe b And (3) a circulating operation path.

Through one or two of the above two paths for the refrigerant to circularly operate, five modes of single refrigeration, single heating, single hot water heating, heating + hot water heating, and refrigeration + hot water heating are realized.

It should be noted that, the hot water side heat exchanger 301 transfers heat of a refrigerant in operation in the heat pump hot water subsystem to water flowing into the hot water side heat exchanger through the hot water side water inlet pipe 902, and the water absorbing the heat flows to the water tank through the hot water side water outlet pipe 903; the first throttling element 401 and the second throttling element 402 are electronic throttling valves, and of course, other components with throttling functions, such as capillary tubes and the like, can be adopted according to the needs; the air-conditioning side heat exchanger 304 transfers heat of the operating refrigerant in the heat pump hot water subsystem and the air-conditioning subsystem to water flowing into the air-conditioning side water inlet pipe 904, and the water absorbing heat or releasing heat flows to the user-using side heat exchanger in the air conditioner through the air-conditioning side water outlet pipe 905, so that the user of the air conditioner can heat or refrigerate at the position.

Specifically, the dual four-way valve assembly includes a first four-way valve 201 and a second four-way valve 202, the first four-way valve 201 is respectively communicated with an exhaust end and a suction end of a first compressor 101, a port on the second four-way valve 202 and a refrigerant port on an air-conditioning side heat exchanger 304, the second four-way valve 202 is respectively communicated with a port on the first four-way valve 201, a refrigerant port on a hot water side heat exchanger 301 and a refrigerant port on a wind side heat exchanger 302, as shown in fig. 1, 3, 5, 7 and 16, as an embodiment, a C port on the first four-way valve 201 is communicated with a D port on the second four-way valve 202, a D port and an S port on the first four-way valve 201 are respectively communicated with an exhaust end and a suction end of the first compressor 101, an E port on the first four-way valve 201 is communicated with a refrigerant port on the air-, The S port and the E port are respectively communicated with a refrigerant port on the hot water side heat exchanger 301, a suction end on the compressor first 101, and a refrigerant port on the air side heat exchanger first 302, and the connection mode between the four-way valve first 201 and the four-way valve second 202 and the connection mode between the S port and the air side heat exchanger first 302 and the air conditioner side heat exchanger 304 may be different from that of the present embodiment.

In one embodiment, as shown in fig. 1, 3, 5, 7 and 16, the refrigerant sub-pipe assembly includes a first refrigerant sub-pipe 906, a second refrigerant sub-pipe 907, a third refrigerant sub-pipe 908, a fourth refrigerant sub-pipe 909 and a fifth refrigerant sub-pipe 910, the first refrigerant sub-pipe 906 is disposed between another refrigerant port of the hot water side heat exchanger 301 and one port of the throttle one 401, the second refrigerant sub-pipe 907 is disposed between another port of the throttle one 401 and another refrigerant port of the air-conditioning side heat exchanger 304, the third refrigerant sub-pipe 908 is disposed between the second refrigerant sub-pipe 907 and another refrigerant port of the air-conditioning side heat exchanger 302, the fourth refrigerant sub-pipe 909 is disposed at a portion of the second refrigerant sub-pipe 907 between the third refrigerant sub-pipe 908 and one end adjacent to another port of the air-conditioning side heat exchanger 304, the fifth refrigerant sub-pipe 910 is disposed between the first refrigerant sub-pipe 906 and the third refrigerant sub-pipe 907, of course, the number and distribution positions of the tubes in the refrigerant sub-pipeline assembly can be different from the present embodiment according to the requirement.

Additionally, as an embodiment, as shown in fig. 1, 3, 5, 7 and 16, the valve assembly includes an on-off valve subassembly composed of a valve with an on-off function, and the on-off valve subassembly includes a first solenoid valve 501 disposed on the second refrigerant sub-pipe 907 and a second solenoid valve 502 disposed on the third refrigerant sub-pipe 908.

The valve having an opening/closing function herein is an electromagnetic valve, but it is needless to say that a valve having an opening/closing function having another structure may be selected as necessary.

Preferably, the valve assembly further includes a check valve subassembly for preventing the backflow of the refrigerant, and the check valve subassembly includes a first check valve 601 disposed on the first refrigerant sub-pipe 906 and allowing the refrigerant to flow only to the first refrigerant sub-pipe 906, a second check valve 602 disposed on the fifth refrigerant sub-pipe 910 and allowing the refrigerant to flow only to the first refrigerant sub-pipe 906, a third check valve 603 disposed on the third refrigerant sub-pipe 908 and allowing the refrigerant to flow only in a direction away from the second solenoid valve 502 and between the second solenoid valve 502 and the fifth refrigerant sub-pipe 910, a fourth check valve 604 disposed on the fourth refrigerant sub-pipe 909 and allowing the refrigerant to flow only to the first refrigerant sub-pipe 906, and a fifth check valve 605 disposed on the second refrigerant sub-pipe 907 and allowing the refrigerant to flow only in a direction away from the first solenoid valve 501 and between the first solenoid valve 501 and the fourth refrigerant sub-pipe 909.

It should be noted that the type of the valve, the number of the valves and the arrangement of the valves in the refrigerant sub-pipeline assembly are not exclusive, and may be additionally arranged according to the requirement.

Preferably, a gas supplementing assembly is arranged between the first refrigerant sub-pipe 906 and the first refrigerant main pipe a located between the double four-way valve assembly and the suction end of the first compressor 101, specifically, the gas supplementing assembly comprises a refrigerant gas supplementing sub-pipe 911, the refrigerant gas supplementing sub-pipe 911 is arranged between the first refrigerant sub-pipe 906 and the first refrigerant main pipe a located between the double four-way valve assembly and the suction end of the first compressor 101, and the refrigerant gas supplementing sub-pipe 911 is sequentially provided with a third electromagnetic valve 503 and a third throttling element 403 towards the first refrigerant main pipe a. The purpose of the air supplement component is to increase the temperature of the gaseous refrigerant sucked by the suction end of the first compressor 101 according to needs, so that the operation energy efficiency of the subsystem is improved.

It should be noted that the third throttle 403 is a capillary tube, but the third throttle 403 and the third solenoid 503 may be replaced by an electronic throttle.

The control method of the air-conditioning heat pump hot water system is characterized in that the system is the air-conditioning heat pump hot water system, and five modes of single cooling, single heating, single hot water heating, heating + hot water heating and cooling + hot water heating can be realized through the system.

The five modes are realized by a four-way valve operation one 201, a four-way valve two 202, a four-way valve three 203, a solenoid valve one 501 and a solenoid valve two 502, and the following table lists the states of the valves in each mode.

Mode(s)	Electromagnetic valve 1	Electromagnetic valve II	Four-way valve 1	Four-way jointValve two	Four-way valve III
						Single refrigeration	ON	OFF	OFF	ON	OFF
Heating only	OFF	ON	ON	OFF	ON
						Single hot water	OFF	ON	OFF	OFF	OFF
Refrigeration and hot water	ON	OFF	OFF	OFF	OFF
						Heating and hot water	OFF	ON	OFF	OFF	ON

In addition, in the system, the default states of the first compressor 101, the second compressor 102, the first four-way valve 201, the second four-way valve 202, the third four-way valve 203, the first fan 305 and the second fan 306 are all power-off states, and the system is shut down when the 5 modes are switched (that is, the first compressor 101, the second compressor 102, the first four-way valve 201, the second four-way valve 202, the third four-way valve 203, the first fan 305 and the second fan 306 are all switched to the power-off states when the modes are switched).

Additionally, the following table lists the parameters involved in the present manipulation method.

The operation steps of the single refrigeration mode in the present manipulation method are as follows.

After entering the single refrigeration mode shown in fig. 1 and 2, judging whether a single refrigeration starting condition is met, if so, entering and completing a single refrigeration running process, otherwise, judging whether a single refrigeration standby condition is met, if so, entering and completing a single refrigeration standby process, and repeating the steps until the mode is exited.

Specifically, as shown in fig. 2, the single refrigeration operation flow includes a single refrigeration operation flow i and a single refrigeration operation flow ii, the single refrigeration start condition includes a single refrigeration start condition i and a single refrigeration start condition ii, the single refrigeration operation flow i is entered if the single refrigeration start condition i is satisfied, and the single refrigeration operation flow ii is entered if the single refrigeration start condition ii is satisfied.

As shown in FIG. 2, the single refrigeration start condition I includes T2+ T_{Return difference 1}＞T_Into≥T2+T_{Return difference 2}The single refrigeration operation process I comprises the steps of starting an air conditioner water pump, delaying S1, detecting a closing signal of a water flow switch on the air conditioner side, delaying S2, starting a first fan 305, electrifying a first electromagnetic valve 501, electrifying a second four-way valve 202, starting a first compressor 101, wherein S1 is preset first delay time, and S2 is preset second delay time.

As shown in figure 2 of the drawings, in which,the single refrigeration starting condition II comprises T_Into≥T2+T_{Return difference 1}The single refrigeration operation process II comprises the steps of starting an air conditioner water pump, delaying S1, detecting a closing signal of a water flow switch on the air conditioner side, delaying S2, starting a first fan 305 and a second fan 306, electrifying a first electromagnetic valve 501, electrifying a second four-way valve 202, delaying S3, starting a first compressor 101, delaying S4 and starting a second compressor 102.

As shown in FIG. 2, the single refrigeration standby condition includes T_IntoAnd (4) less than or equal to T2, wherein the single refrigeration standby process comprises the steps of stopping the first compressor 101, stopping the second compressor 102, delaying S4, stopping the first fan 305 and stopping the second fan 306, and if the system is in a shutdown state or an alarm state, delaying S5, then powering off the first electromagnetic valve 501, the second four-way valve 202 and stopping the operation of the air-conditioning water pump.

The working principle of the single refrigeration mode is as follows: the working process of the heat pump hot water subsystem in the mode comprises the following steps: high-temperature and high-pressure refrigerant coming out of an exhaust port of a first compressor 101 flows to a first wind side heat exchanger 302 through a first four-way valve 201 and a second four-way valve 202 respectively to release heat to the environment and become normal-temperature and high-pressure liquid refrigerant, the normal-temperature and high-pressure liquid refrigerant enters a first liquid storage device 701 through a first one-way valve 601, the coming out super-cooled refrigerant is throttled and decompressed through a first throttling part 401 to become low-temperature and low-pressure saturated refrigerant, the low-temperature and low-pressure saturated refrigerant enters a first air conditioner side heat exchanger 304 through a first electromagnetic valve 501 and a fifth one-way valve 605 to absorb heat in water (heat release, temperature reduction and refrigeration), the coming out superheated refrigerant after heat exchange; the working process of the air conditioning subsystem in the mode is as follows: high-temperature and high-pressure refrigerant coming out of an exhaust port of the second compressor 102 enters the second air-side heat exchanger 303 through the third four-way valve 203 and releases heat to the environment to become normal-temperature and high-pressure liquid refrigerant, the refrigerant is throttled and depressurized through the second throttling element 402 and then enters the second liquid reservoir 702 to the heat exchanger on the air conditioner side to absorb heat in water (water releases heat and cools and refrigerates), superheated refrigerant coming out of heat exchange flows to an air suction port of the second compressor 102 after passing through the third four-way valve 203 to the second gas-liquid separator 802, and finally flows out of the.

A specific example of the present single cooling mode operation method is given below.

In the case, the refrigeration set temperature T2 of the air conditioner is 15 ℃ and T_{Return difference 1}At 5 ℃ and T_{Return difference 2}Is at 2 ℃:

if the actually detected air conditioner inlet water temperature T_IntoAt 21 ℃ (T)_Into≥T2+T_{Return difference 1}) The actual water temperature is far away from the target water temperature, and the first compressor 101 and the second compressor 102 are both started to accelerate the water temperature to drop;

if T_IntoAt 19.5 ℃ (T2+ T)_{Return difference 1}≥T_Into≥T2+T_{Return difference 1}) When the actual water temperature is not greatly different from the target water temperature, the second compressor 102 does not only start the first compressor 101 system to enable the water temperature to slightly and slowly approach the target water temperature, so that energy waste caused by excessive fluctuation of water temperature adjustment is avoided;

if T_IntoWhen the temperature is reduced to 14.5 ℃ (T)_IntoT2) the actual water temperature has reached the target set point and both the first 101 and second 102 compressors are shut down.

The operation steps of the single heating mode in the present manipulation method are as follows.

And selecting to enter a single heating mode shown in fig. 3 and 4, judging whether a single heating starting condition is met, if so, entering and completing a single heating operation flow, otherwise, judging whether a single heating standby condition is met, if so, entering and completing a single heating standby flow, and repeating the steps until the mode is exited.

Specifically, as shown in fig. 4, the single heating operation flow includes a single heating operation flow i and a single heating operation flow ii, the single heating start condition includes a single heating start condition i and a single heating start condition ii, the single heating operation flow i is entered if the single heating start condition i is satisfied, and the single heating operation flow ii is entered if the single heating start condition ii is satisfied.

As shown in FIG. 4, the single heating start condition I includes T3-T_{Return difference 2}≥T_Into＞T3-T_{Return difference 1}And the single heating operation process I comprises the steps of starting an air conditioner water pump, delaying S1, detecting a closing signal of a water flow switch on the air conditioner side, starting a second fan 306, electrifying a third four-way valve 203, delaying S3 and starting a second compressor 102.

As shown in FIG. 4, the single heating start condition II includes T_Into≤T3-T_{Return difference 1}And the single heating operation flow II comprises the steps of starting the air conditioner water pump, delaying S1, detecting a closing signal of a water flow switch on the air conditioner side, starting the first fan 305, the second fan 306, electrifying the second electromagnetic valve 502, electrifying the first four-way valve 201, electrifying the third four-way valve 203, delaying S3, starting the second compressor 102, delaying S4 and starting the first compressor 101.

As shown in FIG. 4, the single heating standby condition includes T_IntoThe single heating standby flow comprises the first compressor 101 stopping, the second compressor 102 stopping, the time delay S4, the first fan 305 stopping and the second fan 306 stopping, and if the system is in a shutdown state or an alarm state, the time delay S5 is carried out, then the solenoid valve II 502, the four-way valve I201, the four-way valve III 203 lose power, and the air-conditioning water pump stops running.

The working principle of the single heating mode is as follows: the working process of the heat pump hot water subsystem in the mode comprises the following steps: high-temperature and high-pressure refrigerant coming out of an air outlet of the first compressor 101 enters the air-conditioning side heat exchanger 304 through the four-way valve 201 respectively to release heat (absorb heat and raise temperature and heat) into water to become normal-temperature and high-pressure liquid refrigerant, the normal-temperature and high-pressure liquid refrigerant enters the first liquid reservoir 701 through the four-way valve 604, the super-cooled refrigerant coming out is throttled and reduced in pressure through the first throttling part 401 to become low-temperature and low-pressure saturated refrigerant, the low-temperature and low-pressure saturated refrigerant enters the first wind side heat exchanger 302 through the second electromagnetic valve 502 and the third one-way valve 603 to absorb heat in air, the superheated refrigerant coming out after heat exchange passes through the second four-way valve; the working process of the air conditioning subsystem in the mode is as follows: the high-temperature high-pressure refrigerant from the air outlet of the second compressor 102 enters the air-conditioning side heat exchanger 304 through the third four-way valve 203 to release heat (absorb heat to raise temperature and heat) into water and turns into normal-temperature high-pressure liquid refrigerant, the refrigerant flows out of the second liquid reservoir 702, is throttled and reduced in pressure by the second throttling element 402 and then enters the air-side heat exchanger to absorb heat in air, the superheated refrigerant after heat exchange flows to the second compressor 102 air inlet through the third four-way valve 203 and the second gas-liquid separator 802, and finally flows out of the air outlet after being compressed and boosted by the.

A specific example of the manipulation method of the single heating mode is given below.

In the case, the refrigeration set temperature T3 of the air conditioner is 40 ℃, T_{Return difference 1}At 5 ℃ and T_{Return difference 2}Is at 2 ℃:

if the actually detected air conditioner inlet water temperature T_IntoAt 33 ℃ (T)_Into≤T3-T_{Return difference 1}) The actual water temperature is far away from the target water temperature, and the first compressor 101 and the second compressor 102 are both started to accelerate the water temperature to rise;

if T_IntoAt 36.5 ℃ (T3-T)_{Return difference 2}≥T_Into≥T3-T_{Return difference 1}) When the actual water temperature is not greatly different from the target water temperature, the system of the compressor II 102 does not only start the compressor I101 to enable the water temperature to slightly and slowly approach the target water temperature, so that energy waste caused by excessive fluctuation of water temperature adjustment is avoided;

if T_IntoWhen the temperature rises to 40.5 ℃ (T)_IntoT3) the actual water temperature has reached the target set point and both compressor one 101 and compressor two 102 are shut down.

The operation steps of the single heating water mode in the control method are as follows.

And selecting to enter a single hot water making mode shown in fig. 5 and 6, judging whether a single hot water making starting condition is met, if so, entering and completing a single hot water making operation process, otherwise, judging whether a single hot water making standby condition is met, if so, entering and completing a single hot water making standby process, and repeating the steps until the mode is exited.

Specifically, as shown in fig. 6, the single heating water start condition includes T_{Water tank}≤T1-T_{Return difference 1}The T is_{Water tank}For the detected water tank temperature and the preset water tank set temperature of T1, the single-heating operation process comprises the steps of starting a hot water pump, delaying S1, detecting a closing signal of a water flow switch at a hot water side, starting a first fan 305, electrifying a second electromagnetic valve 502, delaying S3 and starting a first compressor 101.

As shown in fig. 6, the stand-by condition of single heating water includes T_{Water tank}T1 or more, the single-water-making standby flow comprises the steps of stopping the first compressor 101, delaying S4, stopping the first fan 305, and if the system is in shutdown or alarm state at the momentIn the state, after S5, the second electromagnetic valve 502 loses power and the hot water pump stops running;

the working principle of the single hot water making mode is as follows: the working process of the heat pump hot water subsystem in the mode comprises the following steps: high-temperature and high-pressure refrigerant coming out of an exhaust port of a first compressor 101 enters a hot water side heat exchanger 301 through a first four-way valve 201 to release heat (absorb heat and raise temperature of water and produce hot water) into water to become normal-temperature and high-pressure liquid refrigerant, the normal-temperature and high-pressure liquid refrigerant enters a first liquid storage device 701 through a first one-way valve 601, the coming out super-cooled refrigerant is throttled and reduced pressure through a first throttling part 401 to become low-temperature and low-pressure saturated refrigerant, the low-temperature and low-pressure saturated refrigerant enters a first wind side heat exchanger 302 through a second electromagnetic valve 502 and a third one-way valve 603 to absorb heat in air, the heat-exchanged super-heated refrigerant flows to a first gas; the working process of the air conditioning subsystem in the mode is as follows: and does not work.

A specific example of the control method of the single heating water mode is given below.

The set temperature T1 of the water tank is 50 ℃, T_{Return difference 1}Is at 5 ℃:

when the actually detected water tank temperature T_{Water tank}At 44 ℃ (T)_{Water tank}≤T1-T_{Return difference 1}) Starting a first compressor 101, and starting to raise the water temperature;

when T is_{Water tank}When the temperature rises to 50.5 ℃ (T)_{Water tank}T1) when the actual water temperature in the water tank reaches the target set value, the first compressor 101 is shut down.

The operation steps of the refrigeration and heating water mode in the control method are as follows.

Selecting a mode of entering refrigeration and heating water as shown in fig. 7 to 15, judging whether a starting condition of the refrigeration and heating water is met, if so, entering and completing a running process of the refrigeration and heating water, otherwise, judging whether a standby condition of the refrigeration and heating water is met, if so, entering and completing a standby process of the refrigeration and heating water, and circulating the steps until the mode is exited.

Specifically, as shown in fig. 8 to 12, the cooling + heating water operation flow includes a cooling + heating water operation flow i, a cooling + heating water operation flow ii, a cooling + heating water operation flow iii, a cooling + heating water operation flow iv, and a cooling + heating water operation flow v, the cooling + heating water start condition includes a cooling + heating water start condition i, a cooling + heating water start condition ii, a cooling + heating water start condition iii, a cooling + heating water start condition iv, and a cooling + heating water start condition v, the cooling + heating water operation flow i is entered if the cooling + heating water start condition i is satisfied, the cooling + heating water operation flow ii is entered if the cooling + heating water start condition ii is satisfied, the cooling + heating water operation flow iii is entered if the cooling + heating water start condition iii is satisfied, the cooling + heating water operation flow iv is entered if the cooling + heating water start condition iv is satisfied, and entering a refrigeration and heating water operation flow V if the refrigeration and heating water starting condition V is met.

As shown in FIG. 8, the cooling + heating water start condition I includes T2+ T_{Return difference 1}＞T_Into≥T2+T_{Return difference 2}And T_{Water tank}≤T1-T_{Return difference 1}The refrigeration and heating water operation process I comprises the steps of starting a hot water pump and an air conditioner water pump, delaying S1, detecting a closing signal of a water flow switch on an air conditioner side and a hot water side, delaying S2, electrifying a first electromagnetic valve 501, delaying S3 and starting a first compressor 101.

As shown in fig. 9, the cooling + heating water start condition ii includes T_Into≥T2+T_{Return difference 1}And T_{Water tank}≤T1-T_{Return difference 1}And the refrigeration and hot water production operation process II comprises the steps of starting a hot water pump and an air conditioner water pump, delaying S1, detecting a closing signal of a water flow switch on the air conditioner and the hot water side, delaying S2, starting a second fan 306, electrifying a first electromagnetic valve 501, delaying S3, starting a first compressor 101, delaying S4 and starting a second compressor 102.

As shown in fig. 10, the cooling + heating water start condition iii includes T_{Water tank}≤T1-T_{Return difference 1}The refrigeration and heating water operation process III comprises the steps of starting a hot water pump, delaying S1, detecting a closing signal of a water flow switch on a hot water side, delaying S2, starting a first fan 305, electrifying a second four-way valve 202, delaying S3 and starting a first compressor 101.

As shown in fig. 11, the cooling + heating water start condition iv includes T2+ T_{Return difference 1}＞T_Into≥T2+T_{Return difference 2}The operation process IV of refrigeration and water heating comprises the steps of starting an air conditioner water pump, delaying S1, detecting a closing signal of a water flow switch on the air conditioner side, delaying S2, starting a first fan 305, electrifying a first electromagnetic valve 501, electrifying a second four-way valve 202, delaying S3 and starting a first compressor 101.

As shown in fig. 12, the cooling + heating water start condition v includes T_Into≥T2+T_{Return difference 1}The operation process V of refrigeration and heating water comprises the steps of starting an air conditioner water pump, delaying S1, detecting a closing signal of a water flow switch on the air conditioner side, delaying S2, starting a first fan 305 and a second fan 306, electrifying a first electromagnetic valve 501, electrifying a second four-way valve 202, delaying S3, starting a first compressor 101, delaying S4 and starting a second compressor 102.

Additionally, as shown in fig. 13 to 15, the cooling + heating water standby condition includes a cooling + heating water standby condition i, a cooling + heating water standby condition ii, and a cooling + heating water standby condition iii, the cooling + heating water standby flow includes a cooling + heating water standby flow i, a cooling + heating water standby flow ii, and a cooling + heating water standby flow iii, and if the cooling + heating water standby condition i is satisfied, the cooling + heating water standby flow i is entered, if the cooling + heating water standby condition ii is satisfied, the cooling + heating water standby flow ii is entered, and if the cooling + heating water standby condition iii is satisfied, the cooling + heating water standby flow iii is entered.

As shown in fig. 13, the cooling + heating standby condition i includes T_{Water tank}Not less than T1 and T_IntoT2 is less than or equal to, the refrigeration and hot water production standby process I comprises the steps of stopping the compressor I101, stopping the compressor II 102, delaying S4, stopping the fan I305, stopping the fan II 306, delaying S5, stopping the hot water pump, if the system is in a shutdown state or an alarm state at the moment, the electromagnetic valve I501 loses power, the air conditioner water pump stops running,

as shown in fig. 14, the cooling + heating standby condition ii includes T_{Water tank}Not less than T1, the cooling and hot water preparing standby flow II comprises the starting of the first fan 305, the time delay S2, the electrification of the second four-way valve 202, the time delay S5, the stop of the hot water pump,

as shown in fig. 15, the cooling + heating standby condition iii includes T_IntoNot more than T2, refrigeration and preparationThe hot water standby flow III comprises the steps of stopping the compressor II 102, operating the fan I305, delaying S2, operating the fan II 306, electrifying the solenoid valve II 502 and losing the power of the solenoid valve I501.

The working principle of the refrigeration and heating water mode is as follows: the working process of the heat pump hot water subsystem in the mode comprises the following steps: high-temperature and high-pressure refrigerant coming out of an exhaust port of a first compressor 101 enters a hot water side heat exchanger 301 through a first four-way valve 201 to release heat (absorb heat and raise temperature of water and produce hot water) into water to become normal-temperature and high-pressure liquid refrigerant, the normal-temperature and high-pressure liquid refrigerant enters a first liquid storage device 701 through a first one-way valve 601, the coming out supercooled refrigerant is throttled and reduced in pressure through a first throttling part 401 to become low-temperature and low-pressure saturated refrigerant, the low-temperature and low-pressure saturated refrigerant enters an air conditioner side heat exchanger 304 through a first electromagnetic valve 501 and a fifth one-way valve 605 to absorb heat (release heat and lower temperature and refrigerate) in water, the heat-exchanged superheated refrigerant; the working process of the air conditioning subsystem in the mode is as follows: high-temperature and high-pressure refrigerant coming out of an exhaust port of the second compressor 102 enters the second wind side heat exchanger 303 through the third four-way valve 203 and releases heat to the environment to be changed into normal-temperature and high-pressure liquid refrigerant, the refrigerant is throttled and depressurized through the second throttling element 402 and then enters the second liquid reservoir 702 to the heat exchanger 304 on the air conditioner side to absorb heat in water (water releases heat and cools and refrigerates), superheated refrigerant coming out of heat exchange flows to an air suction port of the second compressor 102 after passing through the third four-way valve 203 to the second gas-liquid separator 802, and finally flows out of.

A specific example of the operation and control method of the cooling and heating water mode is given below.

The set temperature T2 of the air conditioner is 15 ℃, the set temperature T1 of the water tank is 50 ℃, and T_{Return difference 1}At 5 ℃ and T_{Return difference 2}Is at 2 ℃:

1) the operation flow is divided into five conditions:

if the actually detected air conditioner inlet water temperature T_IntoAt 19 ℃ (T2+ T)_{Return difference 1}≥T_Into≥T2+T_{Return difference 2})、T_{Water tank}At 44 ℃ (T)_{Water tank}≤T1-T_{Return difference 1}) When the compressor I101 is started, the heat pump heats waterThe system performs refrigeration while heating water, and the air conditioning subsystem is in a standby state;

if the actually detected air conditioner inlet water temperature T_IntoAt 21 ℃ (T)_Into≥T2+T_{Return difference 1})、T_{Water tank}At 44 ℃ (T)_{Water tank}≤T1-T_{Return difference 1}) If the system runs to produce hot water and simultaneously refrigerates the first compressor 101, the second compressor 102 is started, and the air-conditioning subsystem runs to a refrigeration mode;

if the actually detected air conditioner inlet water temperature T_IntoAt 16.5 ℃ (T)_Into≤T2+T_{Return difference 2})、T_{Water tank}At 44 ℃ (T)_{Water tank}≤T1-T_{Return difference 1}) If the temperature of the air conditioner subsystem is higher than the set temperature, the first compressor 101 is started, the heat pump hot water subsystem only operates to produce hot water, and the air conditioner subsystem is in a standby state;

if the actually detected air conditioner inlet water temperature T_IntoAt 19 ℃ (T2+ T)_{Return difference 1}≥T_Into≥T2+T_{Return difference 2})、T_{Water tank}At 50.5 ℃ (T)_{Water tank}Not less than T1), the first compressor 101 is started, the heat pump hot water subsystem only operates for refrigeration, and the air conditioning subsystem is in a standby state;

if the actually detected air conditioner inlet water temperature T_IntoAt 21 ℃ (T)_Into≥T2+T_{Return difference 1})、T_{Water tank}At 50.5 ℃ (T)_{Water tank}Not less than T1), starting the first compressor 101, enabling the heat pump hot water subsystem to only run for refrigeration, starting the second compressor 102, and enabling the air conditioning subsystem to run for a refrigeration mode;

2) the standby flow is divided into three cases:

if the actually detected air conditioner inlet water temperature T_IntoAt 14.5 ℃ (T)_Into≤T2)、T_{Water tank}At 50.5 ℃ (T)_{Water tank}Not less than T1), stopping the first compressor 101 and the second compressor 102 to be in a standby state, and stopping the hot water pump;

if the actually detected air conditioner inlet water temperature T_IntoAt 15.5 ℃ (T)_Into＞T2)、T_{Water tank}At 50.5 ℃ (T)_{Water tank}Not less than T1), starting the first compressor 101, converting the hot water subsystem of the heat pump into single refrigeration operation, and stopping the operation of the hot water pump;

if the actually detected air conditioner inlet water temperature T_IntoAt 14.5 ℃ (T)_Into≤T2)、T_{Water tank}At 49.5 ℃ (T)_{Water tank}If the temperature is less than T1), the first compressor 101 is started, the heat pump hot water subsystem is converted into single-water-making operation, the second compressor 102 is stopped, and the air-conditioning subsystem is in a standby state.

The operation steps of the heating and water heating mode in the control method are as follows.

And selecting to enter a heating and hot water making mode shown in fig. 16 and 17, judging whether a heating and hot water making starting condition is met, if so, entering and completing a heating and hot water making operation process, otherwise, judging whether a heating and hot water making standby condition is met, if so, entering and completing a heating and hot water making standby process, and circulating the steps until the mode is exited.

Specifically, as shown in fig. 17, the heating + heating water operation flow includes a heating + heating water operation flow i and a heating + heating water operation flow ii, the heating + heating water start condition includes a heating + heating water start condition i and a heating + heating water start condition ii, if the heating + heating water start condition i is satisfied, the heating + heating water operation flow i is entered, and if the heating + heating water start condition ii is satisfied, the heating + heating water operation flow ii is entered.

As shown in FIG. 17, the heating + heating water start condition I includes T_{Water tank}≤T1-T_{Return difference 1}The heating and hot water production operation process I comprises the steps of starting a hot water pump, delaying S1, detecting a closing signal of a water flow switch on a hot water side, delaying S2, starting the first fan 305, electrifying the second electromagnetic valve 502, delaying S3 and starting the first compressor 101.

Preferably, as shown in fig. 17, the heating + hot water operation flow i further includes when T is after the compressor one 101 is started_{Water tank}After T is not less than T1, if T is not less than T_Into≤T3-T_{Return difference 2}And the four-way valve I201 is electrified till T_{Water tank}≤T1-T_{Return difference 1}And when the four-way valve I201 loses power.

As shown in fig. 17, the heating + heating water start condition ii includes T_Into≤T3-T_{Return difference 2}And the operation flow II of heating and water heating comprises starting the air conditionerAnd (4) delaying the water pump by S1, detecting a closing signal of a water flow switch on the air conditioner side, delaying S2, starting a second fan 306, electrifying a third four-way valve 203, delaying S3 and starting a second compressor 102.

The heating and hot water making standby condition comprises a heating and hot water making standby condition I and a heating and hot water making standby condition II, the heating and hot water making standby flow comprises a heating and hot water making standby flow I and a heating and hot water making standby flow II, if the heating and hot water making standby condition I is met, the heating and hot water making standby flow I is entered, otherwise, if the heating and hot water making standby condition II is met, the heating and hot water making standby flow II is entered.

The standby conditions I of heating and hot water heating comprise T_{Water tank}Not less than T1 and T_Into≥T3-T_{Return difference 2}And the heating and hot water standby process I comprises the first compressor 101 shutdown, the time delay S4 and the first fan 305 shutdown.

The standby conditions of heating and hot water heating II comprise T_IntoNot less than T3 and T_{Water tank}≥T1-T_{Return difference 1}And the heating and hot water standby flow II comprises a first compressor 101 shutdown, a second compressor 102 shutdown, a first fan 305 shutdown and a second fan 306 shutdown, and if the system is in a shutdown state or an alarm state, the second electromagnetic valve 502, the first four-way valve 201, the third four-way valve 203 and the air-conditioning water pump are powered off after S5 is delayed and the air-conditioning water pump stops running.

The working principle of the heating and water heating mode is as follows: the working process of the heat pump hot water subsystem in the mode comprises the following steps: high-temperature and high-pressure refrigerant coming out of an exhaust port of a first compressor 101 enters a hot water side heat exchanger 301 through a first four-way valve 201 to release heat (absorb heat and raise temperature of water and produce hot water) into water to become normal-temperature and high-pressure liquid refrigerant, the normal-temperature and high-pressure liquid refrigerant enters a first liquid storage device 701 through a first one-way valve 601, the coming out supercooled refrigerant is throttled and reduced in pressure through a first throttling part 401 to become low-temperature and low-pressure saturated refrigerant, the low-temperature and low-pressure saturated refrigerant enters a wind side heat exchanger through a second electromagnetic valve 502 and a third one-way valve 603 to absorb heat in air, the heat-exchanged superheated refrigerant flows to a first gas-liquid; the working process of the air conditioning subsystem in the mode is as follows: the high-temperature high-pressure refrigerant from the air outlet of the second compressor 102 enters the air-conditioning side heat exchanger 304 through the third four-way valve 203 to release heat (absorb heat to raise temperature and heat) into water and turns into normal-temperature high-pressure liquid refrigerant, the refrigerant flows out of the second liquid reservoir 702, is throttled and reduced in pressure by the second throttling element 402 and then enters the air-side heat exchanger to absorb heat in air, the superheated refrigerant after heat exchange flows to the second compressor 102 air inlet through the third four-way valve 203 and the second gas-liquid separator 802, and finally flows out of the air outlet after being compressed and boosted by the.

A specific example of the control method of the heating + hot water mode is given below.

The set temperature T3 of air conditioning and heating is 40 ℃, the set temperature T1 of the water tank is 50 ℃, and T_{Return difference 1}At 5 ℃ and T_{Return difference 2}Is at 2 ℃:

when the actually detected water tank temperature T_{Water tank}Is 44 ℃ (T)_{Water tank}≤T1-T_{Return difference 1}) And the temperature T of the inlet water of the air conditioner_IntoAt 36 ℃ (T)_Into≤T3-T_{Return difference 2}) The first compressor 101 is started, and the first compressor preferably enters a water heating mode, and the second compressor 102 system enters a heating mode;

when T is_{Water tank}Increasing the temperature to 50.1 ℃ (T)_{Water tank}≧ T1):

A. at this time, if T_IntoIs 38.5 ℃ (T)_Into≥T3-T_{Return difference 2}) The first compressor 101 is shut down;

B. at this time, if T_IntoIs 37.5 ℃ (T)_Into≤T3-T_{Return difference 2}) The four-way valve I201 is switched to a heating mode, and the heat pump hot water subsystem and the air conditioner subsystem both operate in the heating mode;

C. when T is_IntoTo 40.2 ℃ (T)_IntoT3) is stopped for both the first compressor 101 and the second compressor 102.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the heat pump hot water subsystem 1, the air-conditioning subsystem 2, the first refrigerant main pipe a, the second refrigerant main pipe b, the first compressor 101, the second compressor 102, the first four-way valve 201, the second four-way valve 202, the third four-way valve 203, the hot water side heat exchanger 301, the first wind side heat exchanger 302, the second wind side heat exchanger 303, the air-conditioning side heat exchanger 304, the first fan 305, the second fan 306, the first throttle part 401, the second throttle part 402, the third throttle part 403, the first solenoid valve 501, the second solenoid valve 502, the third solenoid valve 503, the first check valve 601, the second check valve 602, the third check valve 603, the fourth check valve 604, the fifth check valve 605, the first reservoir 701, the second reservoir 702, the first gas-liquid separator 801, the second gas-hot water separator 802, the hot water side water inlet pipe 902, the refrigerant side outlet pipe 903, the air-conditioning side inlet pipe 904, the air-side outlet pipe 905, the first refrigerant sub-pipe 906, the second, The terms of the fourth refrigerant sub-pipe 909, the fifth refrigerant sub-pipe 910, and the gas sub-pipe 911 are not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides an air conditioner heat pump hot water system, includes heat pump hot water subsystem and air conditioner subsystem, its characterized in that: the heat pump hot water subsystem comprises a compressor I (101), a double four-way valve assembly, a wind side heat exchanger I (302), a hot water side heat exchanger (301), an air conditioner side heat exchanger (304) and a throttling element I (401), wherein the hot water side heat exchanger (301) is communicated with a water tank through a hot water side water inlet pipe (902) and a hot water side water outlet pipe (903), a hot water pump is arranged on the hot water side water inlet pipe (902) and/or the hot water side water outlet pipe (903), the air conditioner side heat exchanger (304) is communicated with a user use side heat exchanger in an air conditioner through an air conditioner side water inlet pipe (904) and an air conditioner side water outlet pipe (905), an air conditioner water pump is arranged on the air conditioner side water inlet pipe (904) and/or the air conditioner side water outlet pipe (905), and an exhaust end and an air suction end on the compressor I (101) are respectively communicated with the double four-way valve, A refrigerant port on the hot water side heat exchanger (301), a refrigerant port on the wind side heat exchanger (302) and a refrigerant port on the air conditioner side heat exchanger (304) are communicated, the other refrigerant port on the hot water side heat exchanger (301), the other refrigerant port on the wind side heat exchanger (302), the other refrigerant port on the air conditioner side heat exchanger (304) and the first throttling element (401) are connected through a refrigerant sub-pipeline assembly, a valve assembly is arranged on the refrigerant sub-pipeline assembly, any two of the compressor (101), the first throttling element (401) and the three heat exchangers in the heat pump hot water subsystem form a passage for the refrigerant to circularly run through the double four-way valve assembly and the valve assembly, the air conditioner subsystem comprises a second compressor (102), a third four-way valve (203), a second wind side heat exchanger (303) and a second throttling element (402), and the four-way valve III (203) is respectively communicated with the compressor II (102), the wind side heat exchanger II (303) and the air conditioner side heat exchanger (304), and the compressor II (102), the wind side heat exchanger II (303), the air conditioner side heat exchanger (304) and the throttling element II (402) form another passage for circulating the refrigerant through a second refrigerant header pipe (b).

2. A heat pump water heating system with an air conditioner according to claim 1, characterized in that the double four-way valve assembly comprises a first four-way valve (201) and a second four-way valve (202), the first four-way valve (201) is respectively communicated with the exhaust end and the suction end of the first compressor (101), a port on the second four-way valve (202) and a refrigerant port on the heat exchanger (304) at the air conditioner side, and the second four-way valve (202) is respectively communicated with a port on the first four-way valve (201), a refrigerant port on the heat exchanger (301) at the hot water side and a refrigerant port on the heat exchanger (302) at the wind side.

3. An air-conditioning heat pump hot water system as claimed in claim 1, wherein the refrigerant sub-pipeline assembly comprises a first refrigerant sub-pipe (906), a second refrigerant sub-pipe (907), a third refrigerant sub-pipe (908), a fourth refrigerant sub-pipe (909) and a fifth refrigerant sub-pipe (910), the first refrigerant sub-pipe (906) is arranged between another refrigerant port of the hot water side heat exchanger (301) and one port of the first throttling element (401), the second refrigerant sub-pipe (907) is arranged between another port of the first throttling element (401) and another refrigerant port of the air-conditioning side heat exchanger (304), the third refrigerant sub-pipe (908) is arranged between the second refrigerant sub-pipe (907) and another refrigerant port of the first air-side heat exchanger (302), and the fourth refrigerant sub-pipe (909) is arranged between the third refrigerant sub-pipe (908) and one end of another refrigerant port adjacent to the air-conditioning side heat exchanger (304) on the second refrigerant sub-pipe (907) The fifth refrigerant sub-pipe (910) is arranged between the first refrigerant sub-pipe (906) and the third refrigerant sub-pipe (908).

4. A heat pump water heating system with air conditioner according to claim 3, characterized in that the valve assembly comprises an on-off valve subassembly composed of a valve with on-off function, and the on-off valve subassembly comprises a first solenoid valve (501) arranged on the second refrigerant sub-pipe (907) and a second solenoid valve (502) arranged on the third refrigerant sub-pipe (908).

5. An air-conditioning heat pump hot water system as claimed in claim 4, wherein the valve assembly further comprises a check valve subassembly for preventing the backflow of the refrigerant, the check valve subassembly comprising a first check valve (601) disposed on the first refrigerant sub-pipe (906) for allowing the refrigerant to flow only to the first throttling member (401), a second check valve (602) disposed on the fifth refrigerant sub-pipe (910) for allowing the refrigerant to flow only to the first refrigerant sub-pipe (906), a third check valve (603) disposed on the third refrigerant sub-pipe (908) at a position between the second solenoid valve (502) and the fifth refrigerant sub-pipe (910) for allowing the refrigerant to flow only in a direction away from the second solenoid valve (502), a fourth check valve (604) disposed on the fourth refrigerant sub-pipe (909) for allowing the refrigerant to flow only to the first refrigerant sub-pipe (906), and a solenoid valve disposed on the second refrigerant sub-pipe (907) at a position between the first solenoid valve (501) and the fourth sub-pipe (909) And a check valve five (605) allowing the refrigerant to flow in a direction away from the solenoid valve one (501).

6. A heat pump water heating system with air conditioner according to claim 3, characterized in that an air supplement component is arranged between the first refrigerant sub-pipe (906) and the first refrigerant main pipe (a) between the double four-way valve component and the suction end of the first compressor (101).

7. An air-conditioning heat pump hot water system as claimed in claim 6, wherein the air supplement component comprises a refrigerant air supplement sub-pipe (911), the refrigerant air supplement sub-pipe (911) is arranged between the first refrigerant sub-pipe (906) and a first refrigerant main pipe (a) between the double four-way valve component and a suction end of the first compressor (101), and the refrigerant air supplement sub-pipe (911) is sequentially provided with a solenoid valve III (503) and a throttling element III (403) towards the first refrigerant main pipe (a).