CN202002190U - Solar energy and gas boiler compound heating device - Google Patents

Abstract

The utility model discloses a solar energy and gas boiler compound heating device. The solar energy and gas boiler compound heating device comprises a solar energy heat collection circulating system, a gas boiler, a first temperature sensor which is arranged in a water storage tank and used for acquiring first temperature, a second temperature sensor which is arranged in a living water pipeline and used for acquiring second temperature, and a controller, wherein the input end of the controller is connected with the first temperature sensor and the second temperature sensor, and the output end of the controller is connected with the gas boiler, so the controller starts the gas boiler when the second temperature is at least lower than set temperature and stops the gas boiler when the first temperature and/or the second temperature is equal to the set temperature. In the solar energy and gas boiler compound heating device, the new energy can be used fully, and aims of saving energy and reducing emission can be fulfilled.

Description

Solar energy, gas boiler composite heating device

technical field

The utility model relates to a composite heating device based on solar heating.

Background technique

With the development of my country's economy and the improvement of people's living standards, people's requirements for quality of life and living environment are getting higher and higher. Life, the high energy consumption and high carbon emission heating mode of conventional electric heating seems to be struggling.

Gas wall-hung boiler is a kind of household equipment that uses gas as the main energy source to provide warm and comfortable home heating and domestic water. Its comfort, energy saving and environmental protection have been greatly appreciated and welcomed by users.

Solar energy is an inexhaustible new energy source. After years of development, the technology of solar water heaters has become increasingly mature, and there are various ways of building installation. An effective way of low-carbon life is the best way to improve the quality of life and reduce living expenses.

Contents of the invention

Therefore, the purpose of this utility model is to provide a solar energy and gas boiler composite heating device based on solar heating, fully utilize new energy, and achieve the purpose of energy saving and emission reduction.

The technical scheme that the utility model adopts is:

The composite heating device of solar energy and gas boiler of the utility model comprises:

The solar heat collection circulation system is equipped with a heat collector, a water storage tank connected with an upper water pipe and a first heat exchange coil that forms a heat medium circulation system through the first circulation pipeline and the heat collector;

The gas-fired boiler forms a heat exchange cycle through the second circulation pipeline provided with an electromagnetic valve and the second heat exchange coil arranged in the water storage tank;

a first temperature sensor, arranged in the water storage tank, to obtain a first temperature;

The second temperature sensor is arranged in the domestic water pipeline to obtain the second temperature; and

A controller, the input end is connected with the first temperature sensor and the second temperature sensor, and the output end is connected with the gas boiler, so as to start the gas boiler when at least the second temperature is lower than the set temperature, and When the first temperature and/or the second temperature reach the set high temperature, the gas boiler is stopped.

According to the technical solution of the utility model, the solar energy and gas boiler composite heating device mainly uses solar energy for heating. When the solar energy cannot meet the requirements, an additional gas boiler is used for heating. Use performance.

The use of temperature as a parameter to control has a relatively direct control property.

In the above-mentioned solar energy and gas-fired boiler composite heating device, a circulation pump connected to the output control terminal of the controller is provided on the first circulation pipeline, and a circulation pump connected to the input terminal of the controller is provided on the heat collector. The third temperature sensor is used to start the circulating pump when the temperature collected by the third temperature sensor reaches the set value, and to drive the circulating pump to work periodically when the collected temperature is stable within the set range.

In the solar and gas boiler composite heating device described above, the first heat exchange coil is placed in the lower part of the water storage tank, the second heat exchange coil is placed in the upper part of the water storage tank, and the upper water pipe for replenishing water is connected to the lower end of the water storage tank.

In the solar energy and gas boiler composite heating device, the domestic water pipeline contains a heat circulation pipeline, and the return pipe of the heat circulation pipeline passes through the first three-way solenoid valve and the second heat exchange plate connected to the input terminal of the controller. The water inlet pipe and the water outlet pipe of the pipe are connected to the water inlet pipe of the gas boiler.

The above-mentioned combined solar and gas boiler heating device further includes a fourth temperature sensor connected to the input terminal of the controller for detecting the ambient temperature.

In the above-mentioned combined heating device of solar energy and gas boiler, the gas boiler also includes a domestic water pipeline connected to the boiler from the water storage tank through the second three-way solenoid valve connected to the output terminal of the controller, wherein the first The two-way solenoid valve has two ports, one is connected to the water inlet of the gas boiler, and the other is connected to the water outlet of the gas boiler, and the pipeline drawn from the water outlet is the domestic water pipeline.

For the solar energy and gas boiler combined heating device, the domestic water pipe is provided with a water mixing valve.

In the composite heating device of the above-mentioned solar energy and gas boiler, the outlet pipe of the heat circulation pipeline is provided with a heating water separator, and the water inlet pipe is provided with a heating water collector.

In the solar energy and gas boiler composite heating device described above, the water storage tank is also provided with an electric heating device.

In the solar and gas boiler composite heating device described above, an expansion tank is provided on the heat medium circulation pipeline.

Description of drawings

The technical scheme of the utility model is further described below in conjunction with the accompanying drawings of the description, wherein:

Fig. 1 is a structural principle diagram of a solar energy and gas boiler composite heating device according to the technical solution of the utility model.

In the figure: 1. Controller, 2. Heat collector, 3. Water storage tank, 4. Gas boiler, 5. Circulation pump, 6. Expansion tank, 7. Second three-way solenoid valve, 8. First three-way solenoid Valve, 9, heating water separator, 10, heating water collector, 11, upper water pipe, 12, water mixing valve.

Detailed ways

With reference to accompanying drawing 1, it has shown a kind of solar energy, gas-fired boiler compound heat supply device, comprises:

The solar heat collection circulation system is equipped with a heat collector 2, a water storage tank 3 connected with an upper water pipe and a first heat exchange coil that forms a heat medium circulation system through the first circulation pipeline and the heat collector 2;

The gas boiler 4 forms a heat exchange cycle through the second circulation pipeline provided with a solenoid valve and the second heat exchange coil arranged in the water storage tank 3;

a first temperature sensor, arranged in the water storage tank, to obtain a first temperature;

The second temperature sensor is arranged in the domestic water pipeline to obtain the second temperature; and

The controller 1 is connected to the first temperature sensor and the second temperature sensor at the input end, and connected to the gas boiler 4 at the output end, so as to start the gas boiler 4 when at least the second temperature is lower than the set temperature, And stop the gas boiler when the first temperature and/or the second temperature reach the set high temperature.

Regarding the setting of temperature, one refers to the temperature requirements such as the heating cycle, and the other refers to the temperature requirements of domestic hot water, which can be considered comprehensively, or the heating cycle can be considered separately, because domestic water can be used by mixing water, which is flexible Sex is better.

If only solar energy can be used to reach the required temperature, the water in the water storage tank is directly used for heating cycle through the control of the solenoid valve. Today, when the required temperature cannot be reached by using solar energy, it is necessary to start the gas boiler for auxiliary heating, and the water participating in the heating cycle must pass through the heating channel of the gas boiler.

In order to operate economically, a circulation pump 5 connected to the output control terminal of the controller 1 is provided on the first circulation pipeline, and a second circulation pump 5 connected to the input terminal of the controller 1 is provided on the heat collector 2 Three temperature sensors, to start the circulating pump 5 when the temperature collected by the third temperature sensor reaches the set value, and drive the circulating pump to work periodically when the collected temperature is stable in the set interval.

Further, a preferred option is that the first heat exchange coil is placed at the lower part of the water storage tank 3, and the second heat exchange coil is placed at the upper part of the water storage tank, and the upper water pipe for replenishing water Then it is connected to the lower end of the water storage tank. This type of structure belongs to a top-water method, which utilizes the characteristics of thermal expansion and contraction, and the second heat exchange coil is also placed on the upper part to ensure the best heating cycle.

The domestic water pipeline contains a thermal circulation pipeline, and the return pipe of the thermal circulation pipeline is connected through the first three-way solenoid valve 8 connected to the input terminal of the controller and the water inlet and outlet pipes of the second heat exchange coil. The water inlet pipe of the gas-fired boiler, when the gas-fired boiler is not needed for heating, the water storage tank is heated once and the heating cycle is performed; when the gas-fired boiler is required for heating, it enters the heating cycle through the secondary heating of the gas-fired boiler; when the temperature If it is too low, then the water storage tank is stopped to participate in the circulation through the control of the solenoid valve, and the gas boiler can be directly used for the heating cycle.

It also includes a fourth temperature sensor connected to the input terminal of the controller 1 for detecting the ambient temperature, which can be used for better temperature control. For example, if the ambient temperature is low, the initial heating temperature of the heating cycle needs to be increased. Otherwise, vice versa.

The gas boiler also includes a domestic water pipe connected to the boiler from the water storage tank through a second three-way solenoid valve 7 connected to the output terminal of the controller 1, wherein the second three-way solenoid valve has two One of the ports is connected to the water inlet of the gas boiler, and the other is connected to the water outlet of the gas boiler. The pipeline drawn from the water outlet is the domestic water pipeline. Through the control of the solenoid valve, the hot water in the water storage tank can be used alone. When the temperature is insufficient, it can be used after secondary heating.

In order to better meet the use requirements, the domestic water pipeline is provided with a water mixing valve 12, which can adjust the temperature of the water.

Preferably, for extended use, the outlet pipe of the heat circulation pipeline is provided with a heating water separator 9 , and the water inlet pipe is provided with a heating water collector 10 .

Furthermore, in order to meet multi-directional use requirements, the water storage tank is also equipped with an electric heating device.

In order to improve the reliability of the system, an expansion tank 6 is provided on the heat medium circulation pipeline.

Claims (10)

1. A solar energy and gas boiler composite heating device, comprising: Solar heat collection circulation system, equipped with a heat collector (2), connected to an upper water pipe, and built with a first heat exchange coil that forms a heat medium circulation system through the first circulation pipeline and the heat collector (2) water storage tank (3); It is characterized in that it also includes: The gas boiler (4) forms a heat exchange cycle through the second circulation pipeline provided with a solenoid valve and the second heat exchange coil arranged in the water storage tank (3); a first temperature sensor, arranged in the water storage tank, to obtain a first temperature; The second temperature sensor is arranged in the domestic water pipeline to obtain the second temperature; and A controller (1), the input end is connected with the first temperature sensor and the second temperature sensor, and the output end is connected with the gas boiler (4), so that when at least the second temperature is lower than the set temperature, the gas boiler (4), and stop the gas boiler when the first temperature and/or the second temperature reach a set high temperature. 2. The combined solar and gas boiler heating device according to claim 1, characterized in that: the first circulation pipeline is provided with a circulation pump (5) connected to the output control terminal of the controller (1), And a third temperature sensor connected to the input terminal of the controller (1) is provided on the heat collector (2), so as to start the cycle when the temperature collected by the third temperature sensor reaches a set value The pump (5) operates and drives the circulating pump to work periodically when the collected temperature is stable within the set interval. 3. The combined solar and gas boiler heating device according to claim 1 or 2, characterized in that: the first heat exchange coil is placed at the lower part of the water storage tank (3), and the second heat exchange coil Placed on the upper part of the water storage tank, the upper water pipe for supplementing water is connected to the lower end of the water storage tank. 4. The composite heating device of solar energy and gas boiler according to claim 3, characterized in that: the domestic water pipeline contains a thermal circulation pipeline, and the return pipe of the thermal circulation pipeline is connected to the input terminal of the controller. The water inlet pipe and the water outlet pipe of the first three-way solenoid valve (8) and the second heat exchange coil are connected to the water inlet pipe of the gas boiler. 5. The combined solar and gas boiler heating device according to claim 4, characterized in that it further comprises a fourth temperature sensor connected to the input terminal of the controller (1) for detecting the ambient temperature. 6. The composite heating device of solar energy and gas boiler according to claim 5, characterized in that: the gas boiler also includes a second three-way solenoid valve (7) connected to the output terminal of the controller (1) Connect the domestic water pipeline of the boiler from the water storage tank, wherein the second three-way solenoid valve has two ports, one is connected to the water inlet of the gas boiler, the other is connected to the water outlet of the gas boiler, and the pipeline drawn from the water outlet For the domestic water pipes. 7. The combined solar and gas boiler heating device according to claim 6, characterized in that: the domestic water pipe is provided with a water mixing valve (12). 8. The composite heating device of solar energy and gas boiler according to claim 4, characterized in that: the outlet pipe of the heat circulation pipeline is provided with a heating water separator (9), and the water inlet pipe is provided with a heating water collector ( 10). 9. The composite heating device of solar energy and gas boiler according to claim 1, characterized in that: the water storage tank is also provided with an electric heating device. 10. The combined solar and gas boiler heating device according to claim 1, characterized in that an expansion tank (6) is provided on the heat medium circulation pipeline.

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