CN201412971Y - Solar high-temperature heat collector - Google Patents

Abstract

The utility model provides a solar high-temperature heat collector, which includes a parabolic mirror reflector, and is characterized in that a heat absorber equipped with a heat-generating medium is placed at the focal point of the parabolic mirror reflector, and the heat absorber is equipped with a heat-generating medium The heat transfer tube is connected to the heat exchanger with the heat-generating medium inside, so that the solar energy can be focused on the heat absorber at the focal point through the parabolic mirror reflector, and the heat-generating medium in the heat absorber is first heated, and then mainly through heat conduction. The heat energy is sequentially transferred to the heating medium in the heat transfer tube and the heating medium in the heat exchanger, so as to absorb heat and store energy, and then quickly heat the water flowing through it through the heat exchanger to provide hot water to the user . The utility model not only has fast heat absorption and high heat collection efficiency, is convenient for heat storage and energy storage, has a long heat preservation time and a fast heating speed, but also is not limited by sunshine time, and can meet the needs of users for heating at any time.

Description

Solar High Temperature Collector

technical field

The utility model relates to a solar heat collector, in particular to a high-temperature heat collector, which belongs to the technical field of solar heat collectors.

Background technique

There are mainly two types of solar collectors currently in use, one is a vacuum heat collector placed on a parabolic mirror panel, and the other is a plate solar collector with a feather plate, both of which absorb solar energy and convect it The water inside is directly heated, so it is widely used in solar water heaters to improve hot water for users. However, most of the existing solar heat collectors can only heat water, but not other heat-generating media, which not only makes the utilization of solar energy greatly affected by time, but also restricts the development of solar energy utilization. Therefore, it is absolutely necessary to improve the existing technology to expand the application range of solar energy.

Contents of the invention

The purpose of this utility model is to provide a solar high-temperature heat collector, which absorbs and stores solar energy through the heating medium first, and then performs heat exchange with the heated water. .

The utility model is completed through the following technical solutions: a high-temperature solar heat collector, including a parabolic mirror reflector, is characterized in that the heat absorber equipped with a heat-generating medium is placed at the focal point of the parabolic mirror reflector, and the heat absorber passes through The heat transfer tube with the heat-generating medium inside is connected to the heat exchanger with the heat-generating medium inside, so that the solar energy can be focused on the heat absorber at the focal point through the parabolic mirror reflector, and the heat-generating medium in the heat absorber is first heated. After that, the heat energy is transferred to the heating medium in the heat transfer tube and the heating medium in the heat exchanger in turn mainly through heat conduction, so as to absorb heat and store energy, and then heat the water flowing through it through the heat exchanger. Provide hot water to users.

The heat absorber is set as a closed body with a cavity, and the closed body is set as a rectangle or a cylinder or a sphere or a triangle or a polygon, and the cavity is filled with a heating medium, such as oil, metal powder, etc., so as to absorb heat and quickly dissipate heat. Transfer to the heating medium.

The heat transfer tube is set as a vacuum tube, filled with heating medium, one end of the tube communicates with the cavity of the heat absorber, and the other end communicates with the cavity of the heat exchanger, so as to enhance the heat preservation effect during the heat transfer process.

The heat exchanger is set as a shell with a cavity inside and an inlet on it, the shell is set as a shell with a vacuum layer or a heat insulation layer, the entrance on the shell communicates with the cavity, and the cavity It is filled with heating medium and communicates with the heat transfer tube through the inlet. There is also a serpentine tube or a spiral tube in the cavity. Water outlet, so that the cold water sent into the serpentine tube or spiral tube is exchanged with the high-temperature heating medium outside the tube to heat up into hot water and then sent out for users to use hot water.

The parabolic mirror reflector is set as a lens assembly composed of two transparent parabolic panels with the same size and the same focal point, so as to facilitate focusing and heat absorption.

The utility model has the following advantages and effects: adopting the above scheme, the solar energy can be conveniently focused on the heat absorber through the parabolic mirror reflector or the parabolic lens assembly, so that it absorbs heat and quickly transfers the heat energy to the heating medium, and transfers the heat energy In turn, it is transferred to the heating medium in the heat transfer tube and the heating medium in the heat exchanger for heat absorption and energy storage, and then through the heat exchanger, the cold water sent into the serpentine tube or spiral tube and the cold water outside the tube The high-temperature heating medium undergoes heat exchange to heat up into hot water and then sends it out to provide hot water to users, and at the same time provide hot air or high-temperature heat energy to users. The utility model not only absorbs heat quickly, but also has high heat collection efficiency, and is convenient for heat storage and energy storage , the heat preservation time is long, the heating speed is fast, and it is not limited by the sunshine time, which can meet the needs of users for heating at any time, and maximize the use of solar energy, an inexhaustible energy source, so that it can benefit mankind. .

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is another structural schematic diagram of the utility model.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings, but the content of the utility model is not limited thereto.

The solar high-temperature heat collector provided by the utility model includes a parabolic mirror reflector 1, wherein a heat absorber 2 with a heat-generating medium 3 is placed at the focus position of the parabolic mirror reflector 1, and the heat absorber 2 is equipped with a heat-generating The heat transfer tube of the medium is connected to the heat exchanger 6 containing the heating medium, wherein the heat absorber 2 is set as a closed body with a cavity, the closed body is set as a rectangle, and the cavity is filled with heating medium oil 3, and the heat transfer tube 4 is set as a vacuum tube, and the heating medium oil 3 is filled in the tube 4. One end of the tube 4 communicates with the cavity of the heat absorber 2, and the other end communicates with the cavity 7 of the heat exchanger 6 through the inlet 5, and the heat exchanger 6 is set as its There is a cavity 7 inside, a rectangular shell with an inlet 5 on it, the shell is set as a shell with a vacuum layer, the cavity 7 is filled with heating medium oil 3, and communicated with the heat transfer tube 4 through the inlet 5, so as to pass through The parabolic mirror reflector 1 focuses the solar energy on the heat absorber 2 at the focal point, heats the heating medium 3 in the heat absorber 2 first, and then transfers the heat energy to the heating medium in the heat transfer tube 4 in sequence mainly through heat conduction and the heat-generating medium in the heat exchanger 6, so as to absorb heat and store energy. There is also a spiral tube 9 in the cavity 7 of the heat exchanger 6, and the two ends of the tube 9 extend outward through the shell 6, wherein the lower end It is a cold water inlet 10, and the upper end is a hot water outlet 8, so that the cold water sent into the spiral tube 9 can exchange heat with the high-temperature heat-generating medium oil 3 outside the tube to heat up into hot water and send it out for users to use hot water, such as figure 1.

The parabolic mirror reflector is set as a lens assembly composed of two transparent parabolic panels 11 and 12 of the same size and the same focal point. Water is filled in the cavity between the two transparent parabolic panels to replace transparent glass. A heat absorber 2 is arranged at the focal point of the assembly, and the heat absorber 2 is connected with a heat exchanger 6 through a heat transfer tube 4, as shown in FIG. 2 , and the rest of the structure is the same as that in FIG. 1 .

Claims (5)

1. A solar high-temperature heat collector, comprising a parabolic mirror reflector, characterized in that a heat absorber with a heat-generating medium is placed at the focal point of the parabolic mirror reflector, and the heat absorber passes through a heat-absorbing medium equipped with a heat absorber. The heat pipe is connected with the heat exchanger containing the heat-generating medium. 2. The solar high-temperature heat collector according to claim 1, characterized in that the heat absorber is set as a closed body with a cavity, and the closed body is set as a rectangle, a cylinder, a sphere, a triangle or a polygon, and the inside of the cavity Fill with heating medium. 3. The solar high-temperature heat collector as claimed in claim 1, characterized in that the heat transfer tube is a vacuum tube filled with a heating medium, one end of the tube communicates with the cavity of the heat absorber, and the other end communicates with the cavity of the heat exchanger. The cavities are connected. 4. The solar high-temperature heat collector as claimed in claim 1, characterized in that the heat exchanger is provided with a cavity inside and a casing with an inlet on it, the inlet on the casing communicates with the cavity, and the cavity The cavity is filled with heating medium and communicates with the heat transfer tube through the inlet. There is also a serpentine tube or a spiral tube in the cavity. The two ends of the tube extend outward through the shell. Hot water outlet. 5. The high-temperature solar heat collector according to claim 1, wherein the parabolic mirror reflector is a lens assembly composed of two transparent parabolic panels of the same size and focus.

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