CN202613784U - solar heating system - Google Patents

Abstract

The utility model provides a solar heating system. According to the solar heating system of the present utility model, comprising a solar heat collecting device, the solar heat collecting device comprises a solar heat exchange coil; an energy storage device, the solar heat exchange coil is arranged in the energy storage device, and the energy storage device has an energy storage medium The terminal device, the terminal device includes a drinking water system, the drinking water system includes a drinking water coil, the drinking water coil is arranged in the energy storage device, and the solar heat exchange coil at least partially surrounds the outside of the drinking water coil. By setting up an independent drinking water coil, heat is drawn from the energy storage device to provide hygienic hot drinking water.

Description

solar heating system

technical field

The utility model relates to the field of solar heating, in particular to a solar heating system.

Background technique

As people's awareness of clean energy improves, solar energy is used more and more as a heating energy source, and more and more home users will consider solar heating. However, due to the limited weather conditions in winter, the solar heating system may not be able to provide 100% heat from the solar energy, so gas, oil or electric assistance is required.

There are two main ways to combine existing solar energy systems with gas boilers:

1. The hot water storage tank of the heating device is enamel, but due to the limitation of manufacturing capacity, the enamel water tank cannot be made very large. Therefore, when domestic heating is used, multiple enamel water tanks are usually connected in series and parallel to increase the heat storage capacity. The boiler is connected to one of the water tanks as an auxiliary heat source for domestic hot water, and the boiler is directly connected to the heating equipment. This design does not have a separate drinking water system and cannot provide clean and sanitary drinking hot water. This kind of system requires a large space to place multiple water tanks, which increases the complexity of the control system, and the gas boiler will be started frequently, which will affect the service life.

2. The solar energy system and the gas boiler system heat the hot water storage tank at the same time. The water tank is closed without anti-corrosion treatment. When heating, heat exchange equipment such as plate heat exchangers need to be connected between the hot water storage tank and the heating equipment. And control systems, etc., increase the cost and complexity of the system. When using domestic hot water for bathing, plate heat exchangers, water pumps and control systems are also required, and the cost of the entire system is very high. The heating device combined with the above solar energy and gas boiler requires a complex control system and high cost.

Utility model content

The purpose of the utility model is to provide a solar heating system to solve the technical problem that the existing solar heating system cannot provide clean drinking water.

In order to achieve the above object, the utility model provides a solar heating system, comprising a solar heat collection device, the solar heat collection device includes a solar heat exchange coil; an energy storage device, the solar heat exchange coil is arranged in the energy storage device, There is an energy storage medium in the energy device; the terminal device, the terminal device includes a drinking water system, the drinking water system includes a drinking water coil, the drinking water coil is arranged in the energy storage device, and the solar heat exchange coil is at least partially surrounded by the drinking water tray tube outside.

Further, the solar heating system also includes an auxiliary heating system, which communicates with the energy storage device and heats the energy storage medium in the energy storage device.

Further, the auxiliary heating system is a gas boiler heating device, a heat pump heating device, an oil heating device and/or an electric heating device.

Further, the solar heat collection device has a heat exchange medium, and the heat exchange medium is antifreeze or water.

Further, the terminal device further includes a heating device, which is arranged outside the energy storage device, and the inlet pipe and the outlet pipe of the heating device are respectively connected to the energy storage device.

Further, the energy storage device includes a pressurized heat storage container.

Further, the energy storage medium is water.

Further, the solar heating system also includes a control system, which is electrically or wirelessly connected to the solar heat collecting device and the energy storage device, respectively.

Further, the solar heat collection device includes a circulation pump, and the circulation pump is arranged in the pipeline of the solar heat collection device.

Further, the drinking water coil is a stainless steel bellows.

The utility model has the following beneficial effects:

By setting up an independent drinking water coil, heat is drawn from the energy storage device to provide hygienic hot drinking water.

In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. Below with reference to figure, the utility model is described in further detail.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the attached picture:

Fig. 1 is a schematic diagram of a solar heating system according to the present invention.

Detailed ways

The embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, but the utility model can be implemented in various ways defined and covered by the claims.

Referring to Fig. 1, according to the solar heating system of the present utility model, comprising: a solar heat collecting device, the solar heat collecting device comprises a solar heat exchange coil; an energy storage device, the solar heat exchange coil is arranged in the energy storage device, and the energy storage device There is an energy storage medium in it; the terminal device, the terminal device includes a drinking water system, the drinking water system includes a drinking water coil, the drinking water coil is arranged in the energy storage device, and the solar heat exchange coil is at least partially surrounded outside the drinking water coil .

In order to improve the heat exchange efficiency, the drinking water coil 42 is installed concentrically with the solar heat exchange coil 11, the drinking water coil 42 is at least partly arranged in the solar heat exchange coil 11, the solar heat exchange coil 11 and the drinking water coil 42 The energy storage medium is used for heat exchange, and the best installation method is that the drinking water coil 42 is completely installed in the solar heat exchange coil 11 to achieve the best heat exchange efficiency. The drinking water coil 42 is installed in the energy storage device 30. According to physical principles, the upper part of the energy storage device 30 has a higher temperature and the lower part has a relatively lower temperature. Therefore, the upper part of the drinking water coil 42 has a smaller gap and the lower part has a larger gap. , the drinking water coil 42 is connected to the pressure heat storage container 31 by welding or flange connection, the inlet end 421 of the drinking water coil 42 is arranged on the lower part of the energy storage device 30, and the outlet end 422 is arranged on the energy storage device The upper end of 30. The hot water output from the outlet port 422 can be used for both drinking and bathing. By setting a separate drinking water coil 42 in the energy storage device 30, a separate pipeline design, the material is made of sanitary stainless steel, the water flow in the pipeline does not contact the medium of the energy storage device 30, and only passes through the drinking water coil 42 It is installed in the energy storage device 30, absorbs heat from the energy storage device, and provides clean and hygienic hot drinking water and bathing water.

Referring to FIG. 1 , the solar heating system further includes an auxiliary heating system 20 , which communicates with an energy storage device 30 and heats the energy storage medium in the energy storage device 30 . The auxiliary heating system 20 is a gas boiler heating device, a heat pump heating device, an oil heating device and/or an electric heating device. If the weather is bad, the auxiliary heating system 20 will be started automatically and the water in the pressurized heat storage container 31 will be heated, which solves the problem of frequent starting of the auxiliary heating system 20 if direct heating, and prolongs the life of the auxiliary heating system 20.

Referring to FIG. 1 , the solar thermal collector 10 has a heat exchange medium, and the heat exchange medium is antifreeze or water. The heat exchange medium in the solar heat collecting device 10 is selected according to the specific conditions of the climate. The winter in the north is relatively cold and antifreeze can be selected, and the weather in the south is not very cold in winter and water can be selected as the heat exchange medium. At the same time, in order to improve the service life of the container, a corrosion inhibitor is added to the heat exchange medium.

Referring to FIG. 1 , the terminal device 40 further includes a heating device 41 which is arranged outside the energy storage device 30 , and the inlet pipe and the outlet pipe of the heating device 41 are respectively connected with the energy storage device 30 . The inlet pipe and outlet pipe of the heating device 41 are connected with the pressure heat storage container 31 respectively, and the heated energy storage medium in the pressure heat storage container 31 is circulated to the heating device 41 for utilization, and then the heated energy storage medium in the heating device 41 is cooled. The energy storage medium circulates back into the pressure-bearing heat storage container 31 to be heated again for recycling.

Referring to FIG. 1 , the energy storage device 30 includes a pressurized heat storage container 31 . The energy storage medium is water. Using a single pressure heat storage container 31, instead of using multiple enamel water storage tanks, the water in the pressure heat storage container 31 can be directly heated, without heat transfer through other components such as plate heat exchangers, which improves the heating efficiency , simplify the structure and save the cost.

Referring to FIG. 1 , the solar heating system further includes a control system 50 , which is electrically or wirelessly connected to the solar heat collecting device 10 and the energy storage device 30 . The control system 50 controls the heat exchange between the solar thermal collector 10 and the energy storage device 30 and the process of water exchange between the energy storage device 30 and the outside world. The control system 50 controls the controlled elements through signal transmission.

Referring to FIG. 1 , the solar heat collection device 10 includes a circulation pump 12 , and the circulation pump 12 is arranged in the pipeline of the solar heat collection device 10 . The function of the circulation pump 12 is to accelerate the circulation of the energy storage medium between the solar heat collector and the solar heat exchange coil 11 arranged in the pressure heat storage container 31, and heat the heat in the pressure heat storage container 31 as fast as possible. energy storage medium.

Referring to FIG. 1 , preferably, the drinking water coil 42 is a stainless steel bellows. It can also be a thin-walled copper tube or a heat exchange pipeline of other materials.

The solar heat collection device 10 converts solar energy into thermal energy, and the temperature of the medium inside the solar heat collection device 10 gradually increases. There is a certain temperature difference between the heat of the solar heat collection device 10 and the temperature of the lower part of the pressure heat storage container 31, and then the circulation pump 12 is started to circulate the heat of the solar heat collection device 10 to the lower part of the pressure heat storage container 31 through medium circulation. In the solar heat exchange coil 11. The solar heat exchange coil 11 exchanges heat with the pressure heat storage container 31 , and the temperature of the water in the pressure heat storage container 31 rises. Through multiple cycles, the temperature of the water in the pressurized heat storage container 31 can reach the heating and bathing temperature. The heating control system 50 detects that the temperature of the upper part of the pressurized heat storage container 31 is higher than that of the heating device 41, starts the heating circulation pump, and transfers the heat in the pressurized heat storage container 31 to the heating device 41, thereby realizing the heating function. When the solar collector 10 supplies insufficient heat to the pressurized heat storage container 31 (such as cloudy days), the gas boiler detects that the temperature of the upper part of the pressurized heat storage container 31 is lower than the set value, and will automatically start ignition heating to provide pressure. The heat storage container 31 supplies heat. When the water temperature exceeds the set value, the gas boiler will automatically stop. The solar heating device circulates in this way, so as to achieve the function of solar heating and provide clean drinking water.

When the user takes a bath, he turns on the faucet, and cold water enters from the inlet port 421 of the lower part of the drinking water coil 42 in the pressure heat storage container 31, and performs heat exchange in the water tank, then the temperature rises, and the drinking water from the pressure heat storage container 31 top The outlet end 422 of the water coil pipe 42 reaches the bathing point, thereby meeting the bathing requirements.

From the above description, it can be seen that the above-mentioned embodiments of the utility model have achieved the following technical effects:

By setting an independent drinking water coil, heat is drawn from the energy storage device to provide sanitary hot drinking water; at the same time, a pressure-bearing heat storage container is set to store heat in the pressure-bearing heat storage container, and the number of times the gas boiler is started is reduced, greatly The service life of the gas boiler is extended; the control system is simple and the cost is reduced.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. a solar heating system is characterized in that, comprising:

Solar energy heat collector (10), said solar energy heat collector (10) comprises solar heat-exchange coil pipe (11);

Energy storage device (30), said solar heat-exchange coil pipe (11) are arranged in the said energy storage device (30), and said energy storage device has energy-accumulating medium in (30);

Terminal installation (40); Said terminal installation (40) comprises potable water system; Said potable water system comprises drinking water coil pipe (42); Said drinking water coil pipe (42) is arranged in the said energy storage device (30), and said solar heat-exchange coil pipe (11) part at least is looped around said drinking water coil pipe (42) outside.

2. solar heating system according to claim 1 is characterized in that, also comprises auxiliary heating system (20), is connected with said energy storage device (30), heats the said energy-accumulating medium in the said energy storage device (30).

3. solar heating system according to claim 2 is characterized in that, said auxiliary heating system (20) is gas fired-boiler heater, heat pump heating device, fuel oil heater and/or electric heater unit.

4. solar heating system according to claim 1 is characterized in that, said solar energy heat collector has heat transferring medium in (10), and said heat transferring medium is anti-icing fluid or water.

5. solar heating system according to claim 1; It is characterized in that; Said terminal installation (40) also comprises heating plant (41); Said heating plant (41) is arranged on said energy storage device (30) outside, and the inlet tube of said heating plant (41) and outlet are connected with said energy storage device (30) respectively.

6. solar heating system according to claim 1 is characterized in that, said energy storage device (30) comprises pressure bearing stored fill container (31).

7. solar heating system according to claim 1 is characterized in that, said energy-accumulating medium is a water.

8. solar heating system according to claim 1 is characterized in that, also comprises control system (50), and it is electrically connected or wireless connections with said solar energy heat collector (10) and said energy storage device (30) respectively.

9. solar heating system according to claim 1 is characterized in that, said solar energy heat collector (10) comprises circulating pump (12), and said circulating pump (12) is arranged in solar energy heat collector (10) pipeline.

10. solar heating system according to claim 1 is characterized in that, said drinking water coil pipe (42) is a corrugated stainless steel tubing.

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