CN204963255U - Solar energy heat supplying system - Google Patents

Abstract

The utility model relates to a solar heat supply system, comprising a solar heat collector, a circulation pump station for providing heat circulation medium water for the solar heat collector, an indoor radiator, a medium water output pipe of the solar heat collector and a phase change storage The input port of the lower heat exchange coil inside the heat box is connected, and the medium water input pipe of the solar collector is connected to the output port of the lower heat exchange coil in the phase change heat storage tank through a circulating pump station. The upper heat exchange coil is installed above the lower heat exchange coil, and the lower heat exchange coil and the upper heat exchange coil in the phase change heat storage tank pass through the latent heat type phase change energy storage material filled in the phase change heat storage tank To realize heat exchange, the medium water of the upper heat exchange coil is input, and the output port is connected to the indoor radiator through pipes. The utility model uses solar energy as the only source of heat energy, and is a new energy heating system in the true sense. Compared with the traditional solar heating system, it has the advantages of zero pollution and zero discharge.

Description

solar heating system

technical field

The utility model belongs to the technical field of solar thermal utilization, in particular to a solar heating system.

Background technique

Solar energy is a kind of radiant energy without any chemical substances. It is the cleanest and most reliable huge energy treasure house. Although the energy radiated to the surface of the earth is only 1/2.2 billion of the total energy radiated by the sun, it is equivalent to 80,000 times the current total power generation in the world. As the most important basic energy in renewable energy, solar energy refers to the direct conversion and utilization of solar energy. The conversion of solar radiation energy into thermal energy through conversion devices belongs to solar thermal utilization technology. At present, the technology of utilizing thermal energy integrates new technologies such as solar photovoltaic power generation, solar heating/hot water supply, solar refrigeration and air conditioning, solar ventilation and cooling, and controllable natural lighting. Technology; my country's solar heat collection technology has gradually matured,

The current solar heating system, as shown in Figure 1, uses solar collectors as the main source of heat energy, and is equipped with coal-fired boilers as auxiliary energy sources. It includes solar collectors, hot water storage tanks, and indoor heat dissipation. The thermal energy collected by the collector, the circulating medium water of the heating system, transfers the heat energy of the flat plate collector to the indoor radiator through heat exchange, so as to achieve the purpose of heating. The existing problems of the solar heating system are as follows: ① The heat source of the existing solar heating system is the solar collector and the coal-fired coil boiler, which cannot provide complete solar heating, and must be supplemented by other energy sources such as the coal-fired boiler; ② The water in the heat preservation water tank is used for energy storage. Due to the low specific heat capacity of water, the stored heat is limited, so it needs to occupy a huge space; Controlling the water temperature in the water tank cannot ensure the constant temperature of the water inlet of the radiator measured by the user. Other stable energy sources must be used to stabilize the water temperature and ensure indoor heating.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a solar heating system.

The utility model solves its technical problem and realizes by taking the following technical solutions:

A solar heating system, including a solar heat collector, a circulating pump station for providing heat circulation medium water for the solar heat collector, and an indoor radiator, the medium water output pipe of the solar heat collector and the internal phase change heat storage tank The input port of the lower heat exchange coil is connected, and the medium water input pipe of the solar collector is connected to the output port of the lower heat exchange coil in the phase change heat storage tank through a circulation pump station. The upper heat exchange coil is installed above the tube, and the lower heat exchange coil and the upper heat exchange coil in the phase change heat storage tank realize heat exchange through the latent heat phase change energy storage material filled in the phase change heat storage tank. The medium water of the upper heat exchange coil is input, and the output port is connected to the indoor radiator through pipes.

Moreover, the output end of the lower heat exchange coil of the phase change heat storage tank is connected to an expansion tank through a pipeline.

Moreover, a liquid replenishment tank is installed on the medium water inlet pipe of the indoor radiator.

Advantage and positive effect of the present utility model are:

1. The utility model uses solar energy as the only source of heat energy, and is a new energy heating system in the true sense. Compared with traditional solar heating systems, it has the advantages of zero pollution and zero emissions.

2. The utility model adopts a new energy storage material of phase change energy storage. Compared with the traditional water tank energy storage, it has the characteristics of high heat storage, small space occupation, and constant temperature energy storage. The phase change material adopts latent heat type material, and the heat exchange occurs in The phase change point of the material, through the metal coil in the energy storage tank, realizes the heat energy exchange of the flat plate collector→phase change material→indoor heat sink.

3. The heat collector part of the utility model is independent from the indoor radiator part, and the circulation pipeline is relatively independent, which is convenient for maintenance.

4. Due to the heat exchange characteristics of the phase change energy storage material, the constant temperature in the energy storage box is guaranteed, so the temperature of the water inlet of the radiator measured by the user is guaranteed to be constant, and secondary heating equipment such as coal-fired boilers is not required.

Description of drawings

Figure 1 is a structural schematic diagram of the current solar heating system;

Fig. 2 is a structural schematic diagram of the solar heating system of the present invention.

detailed description

Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail,

A solar heating system, as shown in Figure 2, includes a solar heat collector 1, a circulation pump station 8 for providing heat circulation medium water for the solar heat collector, and an indoor radiator 3. The innovation of the utility model is: The medium water output pipeline of the solar heat collector is connected with the input port of the lower heat exchange coil 5 inside the phase change heat storage tank 6, and the medium water input pipeline of the solar heat collector is connected with the phase change heat storage tank through a circulating pump station. The output port of the lower heat exchange coil is connected, the upper heat exchange coil 4 is installed above the lower heat exchange coil of the phase change heat storage tank, the lower heat exchange coil and the upper heat exchange coil in the phase change heat storage tank Heat exchange is realized through the latent heat phase change energy storage material 7 filled in the phase change heat storage tank, and the medium water input and output port of the upper heat exchange coil are connected to the indoor radiator through pipes.

In the specific implementation of the utility model, the output end of the lower heat exchange coil of the phase change heat storage tank is connected with an expansion tank 9 through a pipeline, and the expansion tank is used for adjusting the shrinkage and expansion of the medium water in the pipeline of the solar heat collector.

In the specific implementation of the utility model, the inlet pipe of the indoor radiator is installed with a rehydration tank 2, which is used to replenish the medium water in the pipeline of the indoor radiator to ensure the normal circulation of the indoor radiator.

It should be emphasized that the embodiments described in the utility model are illustrative rather than restrictive, so the utility model is not limited to the embodiments described in the specific implementation, anyone skilled in the art according to the utility model Other implementations derived from the technical solution also belong to the protection scope of the present utility model.

Claims (3)

1. a solar energy heat distribution system, comprise solar thermal collector, for solar thermal collector provides the water circulating pump station of hot circulating medium water and indoor radiator, it is characterized in that: the WATER AS FLOW MEDIUM output channel of solar thermal collector is connected with the input port of the bottom heat exchange coil of phase-change thermal storage case inside, the WATER AS FLOW MEDIUM input channel of solar thermal collector is connected with the output port of bottom heat exchange coil in phase-change thermal storage case by water circulating pump station, above phase-change thermal storage lower box part heat exchange coil, top heat exchange coil is installed, bottom heat exchange coil in phase-change thermal storage case and top heat exchange coil realize heat exchange by the latent heat formula phase-changing energy storage material be filled in phase-change thermal storage case, the WATER AS FLOW MEDIUM input of top heat exchange coil, output port is connected with indoor radiator by pipeline.

2. solar energy heat distribution system according to claim 1, is characterized in that: the bottom heat exchange coil output of phase-change thermal storage case is connected with expansion drum by pipeline.

3. solar energy heat distribution system according to claim 1, is characterized in that: the WATER AS FLOW MEDIUM inlet duct of indoors radiator is provided with fluid infusion case.