Air conditioner water heater throttle valve and working system

Abstract

The present invention relates to the technical field of air conditioner water heater systems, and in particular to an air conditioner water heater throttle valve. Two parallel pipes are arranged in a valve body, a first parallel pipe comprises a first pipe and a second pipe, and a first capillary tube and a valve A are connected in the first pipe; a valve B is connected in the second pipe; a second parallel pipe comprises a third pipe and a fourth pipe; a valve C is arranged in the third pipe; and a valve D and a second capillary tube are connected in the fourth pipe. Further, the present invention further provides a working system based on the air conditioner water heater throttle valve. According to the present invention, a four-way valve does not need to be frequently switched, and solenoid valves are configured as normally-open and normally-closed and are not frequently started, thereby avoiding the situation that the solenoid valves and the four-way valve are burnt out at high temperatures; further, by making use of the pipe design of an energy-saving air conditioner water heater system in combination, excessive use of solenoid valves is avoided, instead, one-way valves are used, and the one-way valves do not need power supply, are less prone to damage, and work more reliably, so that the whole energy-saving air conditioner water heater system is more reliable to operate.

Description

Throttle valve of air-conditioning water heater and its working system Technical Field

[0001] The invention belongs to the technical field of air-conditioning water heater systems, and in particular to a throttle valve of an air-conditioning water heater and a working system thereof. Background Art

[0002] For decades, numerous companies have been researching and developing air conditioning waste heat recovery technologies. From 2000 to 2005, a significant number of manufacturers developed air conditioning water heaters with this feature. However, these water heaters experienced high failure and repair rates, making them unsuitable for market adoption and ultimately abandoned. After decades of research, the main reasons for the current failure to market air conditioning waste heat recovery products are as follows:

[0003] 1. In the air conditioning water heater system, a four-way valve is usually used. The four-way valve structure includes nylon parts and capillaries. Frequent start-up and rapid wear during operation lead to poor sealing and air leakage, shortening the life of the four-way valve and causing malfunction of the air conditioning water heater system.

[0004] 2. The coil in the solenoid valve structure generates heat when working. After working for a long time, the heat accumulates. When the temperature is high, the solenoid valve will malfunction, affecting the normal operation of the air conditioning water heater system.

[0005] 3. In the pipelines of the air-conditioning water heater system, there are multiple solenoid valves in addition to the four-way valve. When in use, the solenoid valves are frequently switched on and off, and the failure rate will also increase.

[0006] For the reasons mentioned above, the maintenance rate of air-conditioning water heater system products is too high, which causes the factory to lose money or even go bankrupt. Therefore, air-conditioning water heater system products have not been able to enter the market.

[0007] Summary of the Invention

[0008] The present invention provides a throttle valve for an air-conditioning water heater, so as to achieve the purpose of reasonably designing an operating mode and ensuring stable operation.

[0009] At the same time, the present invention also provides a working system based on the throttle valve of the air-conditioning water heater.

[0010] The throttle valve for an air conditioner and water heater is characterized in that two parallel pipelines are provided in the valve body, the first parallel pipeline includes a first pipeline and a second pipeline, a first capillary tube and a valve A are connected in the first pipeline, and a valve B is connected in the second pipeline;

[0011] The second parallel pipeline includes a third pipeline and a fourth pipeline; a valve C is provided in the third pipeline; and a valve D and a second capillary are connected in the fourth pipeline.

[0012] Preferably, the valve A and valve D are solenoid valves.

[0013] Preferably, the valve B and valve C are one-way valves.

[0014] Preferably, in the throttle valve of the air-conditioning water heater, a filter is connected before the first parallel pipeline; in the third pipeline, a filter is connected after the valve C.

[0015] The working system based on the throttle valve of the air-conditioning water heater is characterized by comprising a compressor, an evaporator, an air conditioner, and a water tank;

[0016] A four-way valve is connected to the compressor pipeline, one of which is connected to the evaporator, which is connected to the first parallel pipeline; the second parallel pipeline is connected to the air conditioner and the water tank respectively, wherein the third pipeline is connected to the water tank, which is connected to one of the four-way valve interfaces; the fourth pipeline is connected to the air conditioner, and then the air conditioner is connected to the compressor;

[0017] The third interface of the four-way valve is connected to the fifth pipeline, and the fifth pipeline is connected to the pipeline connecting the air conditioner and the compressor.

[0018] Preferably, the working system based on the throttle valve of the air conditioner and water heater is divided into a home working connection state and a commercial working connection state;

[0019] The four-way valve interfaces are respectively the first interface, the second interface, the third interface and the fourth interface; the first interface is connected to the compressor, and the third interface is connected to the liquid storage tank and the compressor;

[0020] In the home working connection state: the evaporator is connected to the fourth interface, and the water tank is connected to the second interface;

[0021] In the commercial working connection state, the evaporator is connected to the second interface, and the water tank is connected to the fourth interface.

[0022] Preferably, the working system based on the throttle valve of the air-conditioning water heater is provided with a normally open solenoid valve and a normally closed solenoid valve.

[0023] Preferably, the working system based on the throttle valve of the air-conditioning water heater has the following working modes:

[0024] Single air conditioning cooling mode: Close valve A, connect the compressor to the four-way valve, connect the four-way valve to the evaporator, then pass through valve B, valve D and the second capillary tube, pass through the air conditioner, and return to the compressor.

[0025] Preferably, the working system based on the throttle valve of the air-conditioning water heater has the following working modes:

[0026] Air conditioning cooling and hot water production mode: Close valve A, connect the compressor to the four-way valve, connect the four-way valve to the water tank, connect the water tank to valve C, valve D, and the second capillary tube, then pass through the air conditioner and return to the compressor.

[0027] Preferably, the working system based on the throttle valve of the air-conditioning water heater has the following working modes:

[0028] Hot water only mode: Close valve D, connect the compressor to the four-way valve, the four-way valve to the water tank, the water tank to valve C and valve A, then pass through the first capillary tube to the evaporator, the evaporator is connected to the four-way valve and then returns to the compressor.

[0029] Preferably, the working system based on the throttle valve of the air conditioner and water heater has the following working modes in the home working connection state:

[0030] Heating air mode: Use the auxiliary heating function of the air conditioner's internal motor alone.

[0031] Beneficial effects of the present invention:

[0032] The throttle valve and working system of the air-conditioning water heater provided by the present invention are more energy-efficient than an air-conditioning water heater system using solar energy. This is achieved by installing the throttle valve and pipeline design provided by the present invention at the end of the air-conditioning water heater compressor pipeline.

[0033] The energy-saving air-conditioning water heater system of the present invention has at least three operating modes, namely, a single air-conditioning cooling mode; a second air-conditioning cooling and hot water making mode; and a third hot water making mode. Combined with the throttle valve and pipeline design of the present invention, energy saving and higher efficiency can be achieved. In addition, in the air-conditioning cooling and hot water making mode, heat recovery is performed and the air-conditioning outdoor unit is not running, thereby saving more electricity, achieving the effect of energy saving when using air conditioning and providing free hot water.

[0034] The energy-saving air-conditioning water heater system of the present invention can be used as a household machine: less hot water is used, the hot water preparation time is short, and more electricity is saved. It can be used as a commercial machine: based on the household machine, it can be achieved by exchanging the position of the pipe connection in the four-way valve. The commercial machine takes a longer time to prepare hot water, and the four-way valve is in a different connection state from the household machine, which reduces the working time of the coil and increases its life. In the present invention, the four-way valve does not need to be frequently switched, and the solenoid valve is provided with normally open and normally closed functions and is not frequently started, so as to avoid high-temperature burning of the solenoid valve and the four-way valve. In combination with the pipeline design of the energy-saving air-conditioning water heater system, the use of more solenoid valves is avoided and one-way valves are used in the system. The one-way valve does not need to be energized, is not easily damaged, and works more reliably, making the operation of the entire energy-saving air-conditioning water heater system more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a schematic diagram of the connection principle of Example 1 of the present invention;

[0036] FIG2 is a schematic diagram of the connection principle of Example 2 of the present invention;

[0037] Figure 3 is a schematic diagram of the home-to-work connection state;

[0038] FIG4 is a schematic diagram of the operation of a household air conditioner in cooling mode;

[0039] Figure 5 is a schematic diagram of the operation of a household air conditioner in cooling and hot water production modes;

[0040] Figure 6 is a schematic diagram of the operation of the domestic hot water mode;

[0041] FIG7 is a schematic diagram of a commercial working connection state;

[0042] Figure 8 is a schematic diagram of the operation of a commercial air conditioner in cooling mode;

[0043] Figure 9 is a schematic diagram of the operation of a commercial air conditioner in cooling and hot water production mode;

[0044] Figure 10 is a schematic diagram of the commercial hot water mode operation;

[0045] In the figure: 1. First capillary tube; 2. Valve A; 3. Valve B; 4. Valve C; 5. Valve D; 6. Second capillary tube; 7. Filter; 8. Compressor; 9. Evaporator; 10. Air conditioner; 11. Water tank; 12. Four-way valve; 13. First interface; 14. Second interface; 15. Third interface; 16. Fourth interface. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further explained below through specific implementation methods.

[0047] Example 1

[0048] Referring to the accompanying drawings, the present invention provides a throttle valve for an air conditioner and water heater, characterized in that two parallel pipelines are provided in the valve body, the first parallel pipeline includes a first pipeline and a second pipeline, a first capillary tube 1 and a valve A2 are connected in the first pipeline, and a valve B3 is connected in the second pipeline;

[0049] The second parallel management includes a third pipeline and a fourth pipeline; a valve C4 is provided in the third pipeline; and a valve D5 and a second capillary tube 6 are connected in the fourth pipeline.

[0050] The throttle valve for the air-conditioning water heater provided in this embodiment can make the operation of the air-conditioning water heater more stable after being used in the air-conditioning water heater.

[0051] The throttle valve provided in Example 1 is installed at the end of the pipeline of the air-conditioning water heater compressor 8. Combined with the pipeline design of the energy-saving air-conditioning water heater system, fewer electronic valves can be used, thereby reducing the system failure rate.

[0052] Example 2

[0053] Based on the structure of Example 1, in the throttle valve of the air-conditioning water heater, a filter 7 is connected before the first parallel pipeline; in the third pipeline, a filter 7 is connected after the valve C.

[0054] The connection of the filter 7 can filter impurities in the water, thereby reducing scale and extending the service life.

[0055] Example 3

[0056] Based on the structure of embodiment 1, the working system of the air-conditioning water heater throttle valve is characterized by comprising a compressor 8, an evaporator 9, an air conditioner 10, and a water tank 11;

[0057] In this embodiment, a four-way valve 12, a normally open electromagnetic valve, a normally closed electromagnetic valve, two throttle valves or two capillaries are provided in the working system.

[0058] The pipeline from the compressor 8 is connected to a four-way valve 12, one of the ports of the four-way valve 12 is connected to the evaporator 9, and the evaporator 9 is connected to the first parallel pipeline; the second parallel pipeline is connected to the air conditioner 10 and the water tank 11 respectively, wherein the third pipeline is connected to the water tank 11, and the water tank 11 is connected to one of the ports of the four-way valve 12; the fourth pipeline is connected to the air conditioner 10, and then the air conditioner 10 is connected to the compressor 8;

[0059] The third interface of the four-way valve 12 is connected to a fifth pipeline, and the fifth pipeline is connected to the pipeline connecting the air conditioner 10 and the compressor 8.

[0060] Valve A2 and valve D5 are solenoid valves; valve B3 and valve C4 are one-way valves.

[0061] Example 3

[0062] On the basis of Example 2, the working system based on the throttle valve of the air conditioner and water heater is divided into a home working connection state and a commercial working connection state;

[0063] The interfaces of the four-way valve 12 are respectively a first interface 13, a second interface 14, a third interface 15, and a fourth interface 16; the first interface 13 is connected to the compressor 8, and the third interface 15 is connected to the liquid storage tank to the compressor 8;

[0064] In the home working connection state: the evaporator 9 is connected to the fourth interface 16, and the water tank 11 is connected to the second interface 14;

[0065] In the commercial working connection state, the evaporator 9 is connected to the second interface 14 , and the water tank 11 is connected to the fourth interface 16 .

[0066] The working system based on the throttle valve of the air conditioner and water heater provided by the present invention has the following four working modes in the home working connection state:

[0067] 1. Single air conditioning cooling mode:

[0068] In the home working connection state (household machine), the period of air conditioning cooling is long, and the period of hot water making is very short. Therefore, in the system of the present invention, a single air conditioning cooling mode and a single hot water making mode are designed, which is more convenient for customers to use and can achieve the best energy-saving effect.

[0069] Valve D5 is a normally open solenoid valve, and valve A2 is a normally closed solenoid valve. When used at home, the four-way valve 12 is in a de-energized state, valve A2 is closed, and the high-temperature hot air is discharged directly to the evaporator 9. The compressor 8 is connected to the four-way valve 12, and the four-way valve 12 is connected to the evaporator 9. The refrigerant then passes through valve B3, valve D5 and the second capillary tube 6, is cooled by the air conditioner 10, and returns to the compressor 8.

[0070] When used as a household appliance, in the single air-conditioning cooling mode, the four-way valve 12, valve A2, and valve D5 are all used in the non-powered state.

[0071] 2. Air conditioning cooling and hot water production mode:

[0072] Valve D5 is a normally open solenoid valve, and valve A2 is a normally closed solenoid valve; close valve A2, and the compressor 8 is connected to the four-way valve 12. When used at home, the four-way valve 12 is energized, and the four-way valve 12 is connected to the water tank 11. The water tank 11 is connected to valve C4, valve D5, and the second capillary tube 6, and then cooled by the air conditioner 10 and returned to the compressor 8.

[0073] In the household unit, in the air conditioning cooling and hot water making mode, the four-way valve 12 is in the energized working state; valves A2 and D5 are used in the de-energized state.

[0074] 3. Hot water only mode:

[0075] When indoor cooling is not required but water tank 11 needs to be heated, the system operates in hot water-only mode. Valve D5 is a normally open solenoid valve, and valve A2 is a normally closed solenoid valve. Valve D5 is closed, and compressor 8 is connected to four-way valve 12. For home use, four-way valve 12 is energized and connected to water tank 11. Water tank 11 is connected to valves C4 and A2, then passes through first capillary tube 1 and connects to evaporator 9. Evaporator 9 connects to four-way valve 12 and returns to compressor 8.

[0076] In the case of a household appliance, in the hot water only mode, the four-way valve 12, valve A2, and valve D5 are used in the energized state.

[0077] In the home working connection state, the air conditioner is used for cooling for a long time and the hot water is used for a short time. The second interface 14 is normally closed and the fourth interface 16 is normally open. During cooling, the four-way valve 12 is not powered and the coil does not heat up. When hot water is used, the four-way valve 12 is powered for a shorter time, so no heat is accumulated.

[0078] 4. Heating air mode:

[0079] Use the electric auxiliary heating of the air conditioner indoor unit alone to achieve the hot air blowing function.

[0080] The working system based on the throttle valve of the air conditioner water heater provided by the present invention has the following three working modes in the commercial working connection state:

[0081] 1. Single air conditioning cooling mode:

[0082] Valve D5 is a normally open solenoid valve, and valve A2 is a normally closed solenoid valve. In commercial use, the four-way valve 12 is energized, valve A2 is closed, and the high-temperature hot air is discharged directly to the evaporator 9. The compressor is connected to the four-way valve 12, and the four-way valve 12 is connected to the evaporator 9. The refrigerant then passes through valve B3, valve D5 and the second capillary tube 6, is cooled by the air conditioner 10, and returns to the compressor.

[0083] In the commercial machine, in the single air conditioning cooling mode, the four-way valve 12 is in the energized working state; the valves A2 and D5 are all used in the de-energized state.

[0084] 2. Air conditioning cooling and hot water production mode:

[0085] Valve D5 is a normally open solenoid valve, and valve A2 is a normally closed solenoid valve; close valve A2, and the compressor is connected to the four-way valve 12. During commercial use, the four-way valve 12 is in an unpowered state, and the four-way valve 12 is connected to the water tank 11. The water tank 11 is connected to valve C4, valve D5, and the second capillary tube 6, and then cooled by the air conditioner 10 and returned to the compressor 8.

[0086] In the commercial mode, when the air conditioner is in cooling and hot water production mode, the four-way valve 12, valve A2 and valve D5 are all used in the non-powered state.

[0087] 3. Hot water only mode:

[0088] When indoor cooling is not required but water tank 11 needs to be heated, the system operates in hot water-only mode. Valve D5 is a normally open solenoid valve, and valve A2 is a normally closed solenoid valve. Valve D5 is closed, and compressor 8 is connected to four-way valve 12. During commercial operation, four-way valve 12 is de-energized. Four-way valve 12 connects to water tank 11, which is then connected to valves C4 and A2. The water then passes through first capillary tube 1 and connects to evaporator 9. Evaporator 9 connects to four-way valve 12 and returns to compressor 8.

[0089] In the commercial machine, in the hot water only mode, the four-way valve 12 is in the non-energized working state; the valve A2 and the valve D5 are used in the energized state.

[0090] In commercial operation, both air conditioning and hot water usage are high, such as in hot regions like the Middle East, Southeast Asia, and South Africa, where air conditioning is required year-round. In other cases, such as hotels, guesthouses, restaurants, barber shops, bathhouses, and foot massage parlors, where hot water usage is high, and in other situations where both cooling and hot water usage are high, the second interface 14 is normally open and the fourth interface 16 is normally closed. In the simultaneous cooling and hot water production mode, the four-way valve 12 is de-energized and the coil does not heat, effectively preventing damage to the four-way valve 12 and ensuring stable operation of the air conditioning water heater system. The longer the simultaneous cooling and hot water production mode is used, the more heat is recovered from the air conditioning exhaust, the more hot water is used and produced, the more electricity is saved, and the more energy-saving effects are reflected.

[0091] In commercial operation (commercial use), in the air conditioner's cooling and hot water production mode, four-way valve 12 is de-energized. High-temperature water from compressor 8 enters water tank 11 for heat exchange, passes through check valve C4, and then through the normally open solenoid valve D5 (the coil of valve D5 is de-energized). The water is then throttled by the second capillary tube before entering air conditioner 10 for cooling and returning to compressor 8. Normally closed solenoid valve A2 is also de-energized. Therefore, when air conditioner 10 is in cooling and hot water production mode, four-way valve 12, normally closed solenoid valve A2, and normally open solenoid valve 5 are all de-energized, and the coil does not heat, making the probability of system failure extremely low.

[0092] Compared to existing solar water heaters, which rely on electrical heating when sunlight is insufficient or when hot water is needed at night, the air-conditioning water heater system of the present invention can heat water at any time, either by recycling exhaust heat from the air conditioner or by using a heat pump to heat the water. Therefore, it is more energy-efficient than solar water heaters. Commercial units are generally used in public places, and air conditioning can also be used as central air conditioning.

Claims

1. Throttle valve for air conditioner water heater, characterized in that: Two parallel pipelines are provided in the valve body. The first parallel pipeline includes a first pipeline and a second pipeline. The first capillary tube and valve A are connected in the first pipeline; the valve B is connected in the second pipeline. The second parallel pipeline includes a third pipeline and a fourth pipeline; a valve C is provided in the third pipeline; and a valve D and a second capillary are connected in the fourth pipeline.

2. The throttle valve for an air-conditioning water heater according to claim 1, characterized in that: The valves A and D are solenoid valves; the valves B and C are one-way valves.

3. The throttle valve for an air-conditioning water heater according to claim 1, characterized in that: In the throttle valve of the air-conditioning water heater, a filter is connected before the first parallel pipeline; in the third pipeline, a filter is connected after the valve C.

4. The working system of the throttle valve of the air-conditioning water heater according to claim 1 is characterized in that: Including compressor, evaporator, air conditioner, water tank; A four-way valve is connected to the compressor pipeline, one of which is connected to the evaporator, which is connected to the first parallel pipeline; the second parallel pipeline is connected to the air conditioner and the water tank respectively, wherein the third pipeline is connected to the water tank, which is connected to one of the four-way valve interfaces; the fourth pipeline is connected to the air conditioner, and then the air conditioner is connected to the compressor; The third interface of the four-way valve is connected to the fifth pipeline, and the fifth pipeline is connected to the pipeline connecting the air conditioner and the compressor.

5. The working system of the throttle valve of the air conditioner water heater according to claim 4, characterized in that: The working system of the air-conditioning water heater throttle valve is divided into a home working connection state and a commercial working connection state; The four-way valve interfaces are the first interface, the second interface, the third interface, and the fourth interface; One interface is connected to the compressor, and the third interface is connected to the liquid storage tank and the compressor; In the home working connection state: the evaporator is connected to the fourth interface, and the water tank is connected to the second interface; In the commercial working connection state, the evaporator is connected to the second interface, and the water tank is connected to the fourth interface.

6. The operating system of the throttle valve of the air-conditioning water heater according to claim 4, characterized in that: The working system of the throttle valve of the air-conditioning water heater is provided with a normally open solenoid valve and a normally closed solenoid valve.

7. The operating system of the throttle valve of the air conditioner water heater according to claim 4, characterized in that: The working system of the throttle valve of the air-conditioning water heater has the following working modes: Single air conditioning cooling mode: Close valve A, connect the compressor to the four-way valve, connect the four-way valve to the evaporator, then pass through valve B, valve D and the second capillary tube, pass through the air conditioner, and return to the compressor.

8. The operating system of the throttle valve of the air conditioner water heater according to claim 4, characterized in that: The working system of the throttle valve of the air-conditioning water heater has the following working modes: Air conditioning cooling and hot water production mode: Close valve A, connect the compressor to the four-way valve, connect the four-way valve to the water tank, connect the water tank to valve C, valve D, and the second capillary tube, then pass through the air conditioner and return to the compressor.

9. The operating system of the throttle valve of the air conditioner water heater according to claim 4, characterized in that: The working system of the throttle valve of the air-conditioning water heater has the following working modes: Hot water only mode: Close valve D, connect the compressor to the four-way valve, the four-way valve to the water tank, the water tank to valve C and valve A, then pass through the first capillary tube to the evaporator, the evaporator is connected to the four-way valve and then returns to the compressor.

10. The operating system of the throttle valve of the air conditioner water heater according to claim 4, characterized in that: The working system of the air-conditioning water heater throttle valve has the following working modes in the home working connection state: heating air mode: using the electromechanical auxiliary heating function of the air conditioner alone.

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