CN202835831U - Top water type solar water heater static air energy auxiliary heating system - Google Patents

Abstract

The top-water solar water heater assists the air energy static heating system. The air energy heating system is composed of an air energy water heater. The air energy water heater is mainly composed of a compressor, a condenser, a throttle and an evaporator installed in the shell. Installed under the solar water heater water tank, one end of the hot water circulation pipe is installed on the upper part of the condenser, the other end is connected to the middle and upper part of the solar water heater water tank, one end of the cold water circulation pipe is installed on the lower part of the condenser, and the other end is connected to the lower part of the solar water heater water tank. The utility model relies on the gravity of the water in the water tank, and the water between the heat preservation water tank and the condenser is naturally circulated under the drive of the temperature difference, thereby omitting the use of the circulating water pump, reducing the working time of the compressor, and prolonging the working life of the whole machine. The cold water is heated according to the set amount, and hot water can be provided, so that the power loss of the water tank heating work is greatly reduced.

Description

Top water solar water heater static air energy auxiliary heating system

technical field

The utility model belongs to the technical field of auxiliary heating of solar water heaters, and relates to a static air energy auxiliary heating system of a top-water solar water heater.

Background technique

Solar water heaters are generally composed of three parts: brackets, heat collectors and heat preservation water tanks. There are two types of heat collectors: vacuum tube collectors and flat plate heat collectors. After being collected by the collector, the cold water in the heat collector is heated, and the heated water is naturally circulated to the water tank for heat preservation and storage. In cloudy and rainy days, solar water heaters cannot collect the heat of sunlight, and the water in the water tank becomes cold water after being placed for a long time, and it needs auxiliary heating before it can be used. In the prior art, the auxiliary heating system of the solar water heater adopts the method of electric heating, and the electric heating tube is installed on the side or bottom of the heat preservation water tank of the solar water heater to supplement the heating for the solar water heater in cloudy and rainy days. Larger, especially for hotels or units that use large-scale solar water heating systems for central heating, the supplementary heating system needs to consume a lot of electric energy every year, resulting in increased use costs.

The air energy water heater is another energy-saving hot water equipment after the solar water heater. It is mainly composed of a compressor, a condenser, a throttling device, an evaporator and a water storage tank. Installed with a circulating water pump, the air energy water heater can greatly save electricity compared with the electric heating water heater. Because the circulating water pump is used to drive the water in the water storage tank to force circulation between the condenser and the water storage tank, the circulating water driven by the circulating water pump After entering the water tank, the stratified state of hot water and cold water in the water tank will be disturbed, and the compressor will stop working only when the water in the water tank needs to be heated to the set temperature as a whole. There is a lot of water in the water storage tank, and the power of the air source water heater is small. The air source water heater and the circulating water pump need to work for a long time to heat the whole tank of water, the heating speed is slow, and the equipment is easily damaged. In addition, since the heating working environment of the compressor is in the most unfavorable working condition of the heat pump, the power consumption is the largest, which cannot better reflect the energy-saving advantages of the air energy water heater.

Contents of the invention

In view of the existing technology, the auxiliary heating system of the solar water heater water tank adopts the electric heating method, which has the problems of large power consumption and high use cost, and the commonly used air energy water heater adopts the forced circulation of the circulating water pump, and the whole tank of water needs to be pumped every time. Heating, there is the problem that the circulating water pump and compressor work for too long and are easy to be damaged. The utility model provides a top-water solar water heater auxiliary air energy static heating system. The air energy heating system is composed of an air energy water heater. The water heater is mainly composed of a compressor installed in the shell, a condenser, a throttling device and an evaporator. A condensing coil is installed in the condenser. One end of the condensing coil is connected to the exhaust port of the compressor, and the other end is connected to the throttling device. The evaporator is composed of a fan and an evaporating coil. One end of the evaporating coil is connected to the throttling device and the other end is connected to the suction port of the compressor. The fan is installed on the shell next to the evaporating coil. The bottom of the condenser is equipped with a sewage pipe. Installed below the solar water heater water tank, one end of the hot water circulation pipe is installed on the upper part of the condenser, the other end is connected to the middle and upper part of the solar water heater water tank, one end of the cold water circulation pipe is installed on the lower part of the condenser, and the other end is connected to the lower part of the solar water heater water tank.

Adopting the technical scheme of the utility model, the air energy water heater is installed under the heat preservation water tank of the solar water heater. On cloudy and rainy days, when the temperature in the water tank is lower than the set temperature, the air energy water heater starts to work, and the compressor compresses the cold medium, resulting in high temperature When the refrigerant passes through the condensing coil, it transfers heat to the condensed water in the condenser. After being cooled, the high-temperature refrigerant passes through the throttling device, absorbs heat and expands in the evaporating coil, and absorbs heat from the air outside the coil. At this time, the fan keeps Blow away the cold air around the evaporating coil and blow in fresh air from the outside to improve the heat exchange efficiency between the evaporating coil and the air; in the condenser, after the water outside the condensing tube absorbs the heat in the condensing tube, As the temperature rises, high-temperature water rises naturally, and flows from the hot water circulation pipe of the condenser into the top of the solar thermal insulation water tank. The natural circulation of cold and hot water is realized between the condensers. During the natural circulation of cold and hot water, the temperature of the water at the top of the thermal insulation tank continues to rise and gradually increases. When the water temperature reaches the operating temperature, the air source water heater stops working.

Because the utility model installs the air energy water heater under the thermal insulation water tank of the solar water heater, relying on the gravity of the water in the water tank, the water between the thermal insulation water tank and the condenser circulates naturally under the drive of the temperature difference, thereby replacing the air energy water heater with a circulating water pump The traditional working method of forced cold and hot water circulation saves the electric energy required for the circulating water pump; the hot water naturally circulated under the design temperature difference first enters the upper part of the thermal insulation water tank, and does not cause overall disturbance to the water in the water tank. The state of temperature stratification remains unchanged, and the hot water accumulated on the top of the water tank can be released directly from the outlet pipe for use, so this system has the function of quickly replenishing hot water; because the water in the water tank is kept in a layered arrangement according to the temperature during the heating process , the hot water in the upper layer gradually increases, and the cold water in the lower layer gradually decreases. A temperature sensor can be installed in the water tank. When the hot water reaches a fixed water volume, the air source water heater can stop working, which avoids the situation that the air source water heater needs to heat the whole tank of water before it can be used, thereby reducing the working time of the compressor, prolonging the service life of the compressor, and making the electric energy loss is greatly reduced.

Description of drawings

Fig. 1 is a structural schematic diagram of Embodiment 1 of the utility model.

Fig. 2 is a schematic structural diagram of Embodiment 2 of the utility model.

Detailed ways

Embodiment 1: As shown in Figure 1, a top-water solar water heater assists an air energy static heating system, and its air energy heating system is composed of an air energy water heater, and the air energy water heater is mainly composed of a compressor 4, A condenser 8, a throttling device 11 and an evaporator 1 are formed. A condensing coil 7 is installed in the condenser 8. One end of the condensing coil 7 is connected to the exhaust port 10 of the compressor 4, and the other end is connected to the throttling device 11. The evaporator 1. It consists of a fan 13 and an evaporation coil 12. One end of the evaporation coil 12 is connected to the throttling device 11, and the other end is connected to the suction port 3 of the compressor 4. The fan 13 is installed on the shell 2 next to the evaporation coil 12. The condenser The bottom of 8 is equipped with a sewage pipe 5, the air energy water heater is installed below the solar water heater water tank 14, one end of the hot water circulation pipe 9 is installed on the upper part of the condenser 8, the other end is connected to the middle and upper part of the solar water heater water tank 14, and one end of the cold water circulation pipe 6 The bottom of condenser 8 is installed, and the other end connects the bottom of solar water heater water tank 14. Solar water heater water tank 13 is the cylindrical small-sized water tank of household solar water heater.

Embodiment two: as shown in Figure 2, the technical scheme of embodiment two is basically consistent with embodiment one, and the difference is that the solar water heater water tank in embodiment two is the water storage tank 15 that uses in the large-scale solar water heating system, and condensation The hot water circulation pipe 9 on the device 8 is connected on the upper circulation pipe 16 of the solar water heating system on the water storage tank 15 top.

Claims (1)

1. top ability of swimming solar water heater still air can auxiliary heating system, its air can be made of air-source water heater by auxiliary heating system, air-source water heater is mainly by the compressor (4) that is installed in the shell (2), condenser (8), throttling arrangement (11) and evaporimeter (1) consist of, condenser coil (7) is installed in the condenser (8), the exhaust outlet (10) of condenser coil (7) one termination compressors (4), another termination throttling arrangement (11), evaporimeter (1) is comprised of fan (13) and evaporation coil (12), evaporation coil (12) one termination throttling arrangements (11), the air entry (3) of another termination compressor (4), fan (13) is installed on the other shell (2) of evaporation coil (12), blow-off pipe (5) is equipped with in condenser (8) bottom, it is characterized in that: air-source water heater is installed in the below of solar water heater water tank (14), hot-water circulation pipe's (9) one ends are installed in condenser (8) top, the other end is connected to the middle and upper part of solar water heater water tank (14), cool water circulating pipe (6) one ends are installed the bottom of condenser (8), and the other end connects the bottom of solar water heater water tank (14).

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