Zero-carbon shower hot water system

Abstract

According to the zero-carbon shower hot water system, a photovoltaic module is arranged on the upper surface of a heat absorption plate, and after the heat absorption plate absorbs heat, a working medium is gasified and enters an integrated heat exchanger and then flows into the heat absorption plate through a liquid storage cavity pipeline to complete siphon circulation; when heat is insufficient, the compressor is started, high-temperature and high-pressure working medium gas discharged by the compressor enters the integrated heat exchanger, exchanges heat with tap water, is condensed into a low-temperature and high-pressure liquid working medium and flows out of the bottom of the integrated heat exchanger, and the liquid working medium passes through the throttling valve and then is evaporated by the evaporator to become a low-temperature and low-pressure gas working medium. And the low-temperature and low-pressure gas working medium is absorbed and compressed by the compressor to become high-temperature and high-pressure gas to complete heat supply circulation of the compressor system. Photovoltaic power generation is adopted for providing power for the system, zero carbon can be achieved, heat is recycled, the evaporation temperature is high, energy efficiency is efficient and stable, few valves, pipelines and control systems are used, and the system is simple, economical, efficient and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of shower hot water supply, in particular to a zero-carbon shower hot water system, which is a shower hot water supply system integrating photovoltaic, thermal radiation and heat pump shower drainage heat recovery. BACKGROUND

[0002] At present, solar energy or traditional heat pump is commonly used to heat bathing water, and these two types of water heaters have many shortcomings, mainly as follows.

[0003] The solar water heater is greatly affected by weather and season, and depends on sunlight. When it is rainy, foggy or cloudy, the heat collection efficiency decreases significantly. In winter, the effect is worse when the sunshine time is short. It is limited by region, and the efficiency is unstable in high latitude areas or cities with perennial rain. Auxiliary energy is dependent, and backup heating is needed. Most solar water heaters are equipped with electric auxiliary heating. In rainy days, it may completely rely on electricity, and the energy-saving effect is discounted. The water temperature is unstable, and in summer it is too hot. When the sunlight is strong, the water temperature may be too high, even boiling, and manual adjustment or water discharge cooling is needed. In winter, the water pipe is easy to freeze in cold areas, and anti-freezing measures such as heat tape are needed, which increases energy consumption. Parts aging, vacuum tube may be broken, sealing ring is easy to age and leak, and maintenance cost is high.

[0004] The traditional heat pump water heater needs to be matched with a water tank, which occupies a large space and has limited continuous water use capacity. The water tank capacity is fixed, and after continuous use by multiple people, it needs to wait for re-heating. It is greatly affected by the ambient temperature, and the efficiency decreases in warm environment. When the air temperature is lower than 0℃, the heating efficiency (COP value) decreases significantly, the power consumption increases, and below-10℃, some ordinary models may not work normally, and need to rely on electric auxiliary heating, which weakens the energy-saving advantage, and is not suitable for scenes in northern extremely cold areas. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the present application provides a zero-carbon shower hot water system.

[0006] The present application is to utilize the high-efficiency silicon crystal material solar photovoltaic module on the front of the absorption plate to generate electricity, and a large amount of waste heat is generated during the photovoltaic module power generation. The system can absorb the waste heat generated during the photovoltaic module power generation. The back of the absorption plate is black heat radiation absorbing material, which can absorb various radiation heat in the environment even in dark or night environment. The heat absorbed by the absorption plate provides heat for the working medium in the multifunctional heat exchanger through the siphon principle. When the heat supply of the absorption plate is insufficient, the compressor is automatically started, and the shower drainage heat absorption type evaporator in the system can absorb the waste heat in the shower drainage, so that the temperature of the drainage is not higher than the temperature of the tap water supply. The waste water of the shower water is discharged during the shower process, and the heat is recycled and utilized, so that the system can reach a COP (heating capacity divided by power consumption) of more than 6. The system has high energy efficiency, is simple, safe, stable and reliable, and can obtain high-quality hot water even in low-temperature working conditions, thereby improving the energy efficiency ratio of the system. Therefore, whether in summer or in cold winter, the system can maintain stable and efficient energy efficiency ratio operation.

[0007] The system adopts photovoltaic module power generation and electricity storage as the power supply, and can supply power for the compressor in the system, so that the system can realize zero-carbon operation. Meanwhile, the heat absorption plate is arranged below the silicon crystal material, the heat generated during the photovoltaic module power generation is absorbed, and the temperature of the silicon crystal is reduced, so that the photovoltaic power generation is more efficient.

[0008] The technical scheme adopted by the present application to solve the technical problems is:

[0009] A zero-carbon shower hot water system comprises an integrated heat exchanger (1), a photovoltaic module (2), a heat absorption plate (3), a compressor (4), an evaporator (5), a throttling valve (6), a tap water outlet (7) and a tap water inlet (8).

[0010] The photovoltaic module (2) is arranged on the upper surface of the heat absorption plate (3), the working medium is gasified after the heat absorption plate (3) absorbs heat, the gasified working medium gas enters the integrated heat exchanger (1), the gas working medium is condensed in the heat exchange pipe inside the integrated heat exchanger (1) and then enters the liquid storage cavity at the bottom of the integrated heat exchanger (1), and then flows into the heat absorption plate (3) through the liquid storage cavity pipeline to complete the siphon cycle; when the heat is insufficient, the compressor (4) is started, the high-temperature and high-pressure working medium gas discharged by the compressor (4) enters the integrated heat exchanger (1), exchanges heat with the tap water supply, and is condensed into low-temperature and high-pressure liquid working medium which flows out from the bottom of the integrated heat exchanger (1), the liquid working medium becomes low-temperature and low-pressure liquid after throttling through the throttling valve (6), and then becomes low-temperature and low-pressure gas working medium after evaporation through the evaporator (5), the low-temperature and low-pressure gas working medium becomes high-temperature and high-pressure gas after being absorbed and compressed by the compressor (4), and the compressor system heat supply cycle is completed.

[0011] The tap water enters the integrated heat exchanger (1) through the tap water inlet (8) and is heated, and then provides hot water through the tap water outlet (7).

[0012] The tap water outlet (7) and the tap water inlet (8) are located on the side wall of the integrated heat exchanger (1), and the height of the tap water outlet (7) is higher than that of the tap water inlet (8).

[0013] The photovoltaic module (2) and the heat absorption plate (3) are arranged in parallel, and the photovoltaic module (2) and the heat absorption plate (3) are placed at an inclined angle with the ground.

[0014] The beneficial effects of the present application are:

[0015] Firstly, the system uses photovoltaic power generation to provide power for the system, and can realize zero carbon.

[0016] Secondly, the system uses the roof space of the bathroom to lay the heat radiation absorption plate, the front of the plate generates electricity, the waste heat generated by the silicon crystal power generation is absorbed, and the environmental heat radiation heat absorbed on the back is recycled together.

[0017] Thirdly, the heat pump evaporator absorbs heat in the hot water discharged after showering, and the waste water is discharged, and the heat is recycled and reused. Since the temperature of the drainage after showering is high and is not affected by the environment, the evaporation temperature of the system is high, and the energy efficiency is high and stable.

[0018] Fourthly, the system integrates radiation absorption heat exchange and compressor heating into one, the integrated heat exchanger uses the siphon principle, the shower drainage heat absorption type evaporator of the compressor is arranged and designed in the bathroom drainage ditch, and the use of valves, pipelines and control systems is reduced, which is simple, economical, efficient and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the connection diagram of the zero-carbon shower hot water system of the present application

[0020] In the figure, 1 is an integrated heat exchanger, 2 is a photovoltaic module, 3 is a heat absorption plate, 4 is a compressor, 5 is an evaporator, 6 is a throttling valve, 7 is a tap water outlet, and 8 is a tap water inlet. DETAILED DESCRIPTION

[0021] The present application will be further described below in combination with the drawings and examples.

[0022] A zero-carbon shower hot water system, comprising an integrated heat exchanger (1), a photovoltaic module (2), a heat absorption plate (3), a compressor (4), an evaporator (5), a throttling valve (6), a tap water outlet (7) and a tap water inlet (8).

[0023] The photovoltaic module (2) is placed on the upper surface of the heat absorption plate (3), the working medium is gasified after the heat absorption plate (3) absorbs heat, the gasified working medium enters the integrated heat exchanger (1), the gas is condensed through the heat exchange pipe inside the integrated heat exchanger (1) and then enters the liquid storage cavity at the bottom of the integrated heat exchanger (1), and then flows into the heat absorption plate (3) through the liquid storage cavity pipeline to complete the siphon cycle; when the heat is insufficient, the compressor (4) is started, the high-temperature and high-pressure working medium gas discharged by the compressor (4) enters the integrated heat exchanger (1), is condensed into low-temperature and high-pressure liquid working medium after heat exchange with tap water supply, and flows out from the bottom of the integrated heat exchanger (1), the liquid working medium becomes low-temperature and low-pressure liquid after throttling through the throttling valve (6), and then becomes low-temperature and low-pressure gas working medium after evaporation through the evaporator (5), the low-temperature and low-pressure gas working medium becomes high-temperature and high-pressure gas after being absorbed and compressed by the compressor (4), and the compressor system heat supply cycle is completed.

[0024] The tap water enters the integrated heat exchanger (1) through the tap water inlet (8) and is heated, and then hot water is provided through the tap water outlet (7).

[0025] The tap water outlet (7) and the tap water inlet (8) are located on the side wall of the integrated heat exchanger (1), and the height of the tap water outlet (7) is higher than that of the tap water inlet (8).

[0026] The photovoltaic module (2) and the heat absorption plate (3) are arranged in parallel, and the photovoltaic module (2) and the heat absorption plate (3) are placed at an inclined angle with the ground.

Claims

1. A zero-carbon shower hot water system, comprising an integrated heat exchanger (1), a photovoltaic module (2), a heat absorption plate (3), a compressor (4), an evaporator (5), a throttle valve (6), a tap water outlet (7) and a tap water inlet (8), characterized in that: In the zero-carbon shower hot water system, the photovoltaic module (2) is placed on the upper surface of the heat absorption plate (3). After absorbing heat, the absorption plate (3) vaporizes the working medium. The vaporized working medium gas enters the integrated heat exchanger (1). After condensing the gaseous working medium through the heat exchange pipe inside the integrated heat exchanger (1), the gaseous working medium enters the liquid storage chamber at the bottom of the integrated heat exchanger (1), and then flows into the heat absorption plate (3) through the liquid storage chamber pipe to complete the siphon cycle. When the heat is insufficient, the compressor (4) is started, and the high-temperature and high-pressure working medium gas discharged by the compressor (4) enters the integrated heat exchanger (1). After heat exchange with the tap water supply, it is condensed into a low-temperature and high-pressure liquid working medium and flows out from the bottom of the integrated heat exchanger (1). The liquid working medium is throttled by the throttle valve (6) to become a low-temperature and low-pressure liquid. After evaporation in the evaporator (5), it becomes a low-temperature and low-pressure gas working medium. The low-temperature and low-pressure gas working medium is absorbed and compressed by the compressor (4) to become a high-temperature and high-pressure gas, completing the compressor system heat supply cycle.

2. The zero-carbon shower hot water system according to claim 1, characterized in that: Tap water enters the integrated heat exchanger (1) through the tap water inlet (8) and is heated, and then provides hot water through the tap water outlet (7).

3. The zero-carbon shower hot water system according to claim 2, characterized in that: The tap water outlet (7) and the tap water inlet (8) are both located on the side wall of the integrated heat exchanger (1), and the height of the tap water outlet (7) is higher than the height of the tap water inlet (8).

4. The zero-carbon shower hot water system according to claim 1, characterized in that: The photovoltaic assembly (2) and the heat absorption plate (3) are arranged in parallel, and the photovoltaic assembly (2) and the heat absorption plate (3) are placed at an oblique angle to the ground.

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