CN203036873U - Solar water heating system - Google Patents

Abstract

A solar hot water system, an exhaust valve is installed on the top of the water storage tank, the cold water pipe is connected with the solar workstation and the auxiliary heating device, a circulating water pump is installed on the cold water pipe, and the solar workstation is connected to the water inlet of the heat collection device through the pipe The water outlet of the heat collecting device is connected with the hot water pipe, an expansion valve is installed on the hot water pipe, the water outlet of the auxiliary heating device is connected with the hot water pipe, the radiator and the geothermal device are connected with the water storage tank, The solar workstation is composed of a flow controller, a thermal cycle controller, an exhaust controller, a pressure display, a temperature display and a housing, the flow controller is a pressure feedback flow controller, and the auxiliary heating device It is an electrode-type heating device. Due to the adoption of a solar water heating system of the utility model, it completely overcomes the problem of small hot water supply capacity of existing solar water heaters. It has the characteristics of quick and convenient installation, large amount of hot water supply, and reliable use. .

Description

A solar water heating system

technical field

The utility model relates to a solar water heating system, which belongs to the technical field of solar water heater products.

Background technique

Existing solar water heaters used in large quantities are mainly composed of a bracket, a water storage tank and a number of glass heat collecting tubes. It is connected with the water storage tank, and there is a vent hole on the upper part of the water storage tank, and a plastic pipe is installed on the vent hole for the exhaust of the water storage tank. In actual use, it is found that the solar water heater with this structure is limited by its structure. The water capacity of the water tank is small, it is difficult to meet the large-capacity hot water supply, and the number of glass heat collecting tubes is limited, so the heat collecting capacity of the glass heat collecting tubes is also limited, so the existing solar water heater with this structure is due to its design structure. The limitations of the heat collection capacity and hot water storage capacity are small, and in summer, it can only meet the needs of a family of three for a quick bath. If you want to wash for a while, the hot water may not be enough, especially when it is rainy Because there is no storage of hot water, it can basically not be used, and when the unit is used, it cannot be used at all. Many solar water heaters have to be installed to realize the purpose of supplying more hot water, which causes a waste of financial and material resources, and the installation place on the roof is also limited, so installation is also a problem.

The utility model is made at the above-mentioned existing problems.

Contents of the invention

The utility model provides a novel solar water heating system, which adopts comprehensive control technology to realize the purpose of supplying hot water for a long time with a large capacity of the solar water heating system.

The technical scheme that the utility model adopts is:

A solar hot water system is composed of: water storage tank, heat collecting device, solar workstation, auxiliary heating device, circulating water pump, expansion valve, exhaust valve, radiator, geothermal device, tap water inlet pipe, hot water outlet pipe, cold water It is composed of water pipe and hot water pipe. One side of the water storage tank is connected with a tap water inlet pipe and a hot water outlet pipe. The other side of the water storage tank is connected with a cold water pipe and a hot water pipe. valve, the cold water pipe is connected with the solar workstation and the auxiliary heating device, a circulating water pump is installed on the cold water pipe, the solar workstation is connected with the water inlet of the heat collector through the pipeline, and the water outlet of the heat collector is connected with the hot water pipe. An expansion valve is installed on the hot water pipe, the water outlet of the auxiliary heating device is connected with the hot water pipe, and the radiator and the geothermal device are connected with the water storage tank;

The solar workstation is composed of a flow controller, a heat cycle controller, an exhaust controller, a pressure display, a temperature display and a housing, the flow controller, the heat cycle controller, the exhaust controller, the pressure display and the temperature display Installed in the casing, the cold water pipe is connected to the water inlet of the flow controller, the hot water pipe is connected to the water outlet of the flow controller, and the induction head of the exhaust controller is connected to the exhaust valve , the sensor heads of the thermal cycle controller, pressure display and temperature display are fixedly installed in the hot water pipe;

The flow controller is a pressure feedback flow controller, which is mainly composed of a flow control valve, a servo and a bypass pipe. The water inlet of the flow control valve is connected to the cold water pipe, and the water outlet of the flow control valve is connected to the hot water pipe. Connection, the spool of the flow control valve is connected and communicated with the servo, the servo is connected and communicated with the bypass pipe, and the bypass pipe is connected and communicated with the hot water pipe;

The auxiliary heating device is an electrode-type heating device, and the electrode-type heating device is composed of a current controller, a voltage controller, positive and negative electrode heaters, and an insulating heating element. The positive and negative electrode heaters have two positive and negative electrodes. The insulating heating element is set on the positive and negative electrode heaters. The insulating heating element and the positive and negative electrode heaters are assembled to form an integral structure and then fixedly installed in the water pipe. The positive and negative electrode heaters are connected to the current controller and the voltage controller. The wires are connected, and the auxiliary heating device is installed on the bypass pipeline.

The beneficial effects of the utility model are:

Due to the adoption of a solar water heating system of the utility model, the problem of the small hot water supply capacity of the existing solar water heaters has been completely overcome. , The use of reliable features.

Description of drawings

Figure 1: It is a structural schematic diagram of a solar water heating system of the present invention.

In Figure 1: 1. Water storage tank 2. Heat collector 3. Solar workstation

4. Auxiliary heating device 5. Circulating water pump 6. Expansion valve

7. Exhaust valve 8. Radiator 9. Geothermal device

10. Tap water inlet pipe 11. Hot water outlet pipe

12. Cold water pipe 13. Hot water pipe

Detailed ways

As shown in Figure 1.

A solar hot water system is composed of: water storage tank 1, heat collecting device 2, solar workstation 3, auxiliary heating device 4, circulating water pump 5, expansion valve 6, exhaust valve 7, radiator 8, geothermal device 9, tap water The water inlet pipe 10, the hot water outlet pipe 11, the cold water pipe 12 and the hot water pipe 13 are composed of a tap water inlet pipe 10 and a hot water outlet pipe 11 connected to one side of the water storage tank 1, and connected to the other side of the water storage tank 1. There are cold water pipes 12 and hot water pipes 13. An exhaust valve 7 is installed on the top of the water storage tank 1. The cold water pipes 12 are connected with the solar workstation 3 and the auxiliary heating device 4. A circulating water pump 5 is installed on the cold water pipes 12. The workstation 3 is connected to the water inlet of the heat collecting device 2 through pipelines, the water outlet of the heat collecting device 2 is connected to the hot water pipe 13, and an expansion valve 6 is installed on the hot water pipe 13, and the water outlet of the auxiliary heating device 4 is connected to the The hot water pipe 13 is connected, and the radiator 8 and the geothermal device 9 are connected with the water storage tank 1;

Described solar workstation 3 is made of flow controller, heat cycle controller, exhaust controller, pressure display, temperature display and housing, flow controller, heat cycle controller, exhaust controller, pressure display and temperature The monitor is installed in the casing, the cold water pipe 12 is connected to the water inlet of the flow controller, the hot water pipe 13 is connected to the water outlet of the flow controller, the induction head of the exhaust controller is connected to the exhaust The valves 7 are connected, and the induction heads of the thermal cycle controller, pressure display and temperature display are fixedly installed in the hot water pipe 13;

The flow controller is a pressure feedback flow controller, which is mainly composed of a flow control valve, a servo and a bypass pipe. The water inlet of the flow control valve is connected to the cold water pipe 12, and the water outlet of the flow control valve is connected to the hot water pipe. 13 is connected, the spool of the flow control valve is connected and communicated with the servo, the servo is connected and communicated with the bypass pipe, and the bypass pipe is connected and communicated with the hot water pipe 13;

Described auxiliary heating device 4 is an electrode type heating device, and described electrode type heating device is made of: current controller, voltage controller, positive and negative electrode heater and insulating heating element, and positive and negative electrode heater has positive pole and negative pole Two electrodes, the insulating heating element is set on the positive and negative electrode heaters, the insulating heating element and the positive and negative electrode heaters are assembled to form an integral structure, and then fixedly installed in the water pipe, the positive and negative electrode heaters are connected with the current controller and the voltage controller Connected by wires, the auxiliary heating device 4 is installed on the bypass pipeline.

A large-capacity water storage tank 1 is adopted, and the water storage tank 1 can be placed above the room, and several flat-plate solar collectors are installed on an integral support to form a heat collection device 2, and then the cold water pipe 12 and the hot water pipe 13 are connected as shown in the figure. The structure shown in 1 connects each flat solar collector to each other, the cold water is supplied to the heat collector 2 through the circulating water pump 5, and the heated water comes out from the heat collector 2 and enters the water storage tank 1, that is, passes through the sun The hot water heated by thermal energy enters the water storage tank 1 and is stored.

The operation of the solar water heating system is automatically controlled by the solar workstation 3. When encountering rainy days, the auxiliary heating device 4 can be used for heating to ensure the use. Air valve 7 realizes exhaust to ensure that the pressure of water storage tank 1 remains normal and safe. When the water pressure in the system rises or falls, the expansion valve 6 buffers to ensure the normal, safe and stable water supply of the system pressure, so It is very worry-free and convenient to use.

Because a kind of solar hot water system of the present utility model has adopted large-capacity water storage tank 1 and several flat solar heat collectors, and has adopted circulating water pump 5 to supply water, so the amount of hot water collected per unit time increases greatly, like this It ensures the hot water supply for a long time and realizes the requirement of using hot water for a long time, improves the use efficiency of the solar water heating system, and also improves the cost performance.

Claims (1)

1. A solar water heating system, characterized in that: it is composed of: water storage tank, heat collecting device, solar workstation, auxiliary heating device, circulating water pump, expansion valve, exhaust valve, radiator, geothermal device, tap water inlet pipe, It is composed of hot water outlet pipe, cold water pipe and hot water pipe. One side of the water storage tank is connected with tap water inlet pipe and hot water outlet pipe. The other side of the water storage tank is connected with cold water pipe and hot water pipe. An exhaust valve is installed on the top of the tank, the cold water pipe is connected to the solar workstation and the auxiliary heating device, a circulating water pump is installed on the cold water pipe, the solar workstation is connected to the water inlet of the heat collection device through a pipe, and the water outlet of the heat collection device is connected to the water inlet of the heat collection device. The hot water pipes are connected, an expansion valve is installed on the hot water pipes, the water outlet of the auxiliary heating device is connected with the hot water pipes, and the radiator and the geothermal device are connected with the water storage tank; The solar workstation is composed of a flow controller, a heat cycle controller, an exhaust controller, a pressure display, a temperature display and a housing, the flow controller, the heat cycle controller, the exhaust controller, the pressure display and the temperature display Installed in the casing, the cold water pipe is connected to the water inlet of the flow controller, the hot water pipe is connected to the water outlet of the flow controller, and the induction head of the exhaust controller is connected to the exhaust valve , the sensor heads of the thermal cycle controller, pressure display and temperature display are fixedly installed in the hot water pipe; The flow controller is a pressure feedback flow controller, which is mainly composed of a flow control valve, a servo and a bypass pipe. The water inlet of the flow control valve is connected to the cold water pipe, and the water outlet of the flow control valve is connected to the hot water pipe. Connection, the spool of the flow control valve is connected and communicated with the servo, the servo is connected and communicated with the bypass pipe, and the bypass pipe is connected and communicated with the hot water pipe; The auxiliary heating device is an electrode-type heating device, and the electrode-type heating device is composed of a current controller, a voltage controller, positive and negative electrode heaters, and an insulating heating element. The positive and negative electrode heaters have two positive and negative electrodes. The insulating heating element is set on the positive and negative electrode heaters. The insulating heating element and the positive and negative electrode heaters are assembled to form an integral structure and then fixedly installed in the water pipe. The positive and negative electrode heaters are connected to the current controller and the voltage controller. The wires are connected, and the auxiliary heating device is installed on the bypass pipeline.