CN201314623Y - Solar water heater heating system and heat collecting device - Google Patents

Abstract

The utility model relates to a heat supply system of a solar water heater and a heat collection device thereof. The heat supply device of the system is a heating radiator connected with a heat medium pipe of a water tank; and the heat medium pipe penetrates the heat radiator and returns to water tank. A liquid-state bromine lithium compound is sealed in the heat radiator. The heat collection device is characterized in that a U-shaped metal pipe is arranged in each vacuum heat collection pipe; and a pipe connection box is arranged at the end of each pipe and is connected with the water tank through an inlet pipe and an output pipe. The heat supply system has good heat collection effect, quick start, high temperature rise speed, water-free and noiseless operation, no escape and leakage, no special smell, high cleanness and environmental protection, and can be used for supplying heat. Compared with other heat supply manners, the heat supply system has the advantages of reduced consumption of energy sources, reduced expenditure, no maintenance and long service life.

Description

Solar water heater heating system and heat collecting device

technical field

The utility model relates to solar energy utilization technology, in particular to a heating system for a solar water heater and a heat collecting device thereof.

Background technique

In recent years, solar energy has been praised by human beings as an environmentally friendly natural thermal energy. The solar water heater that utilizes solar heat energy that people develop to obtain hot water is exactly the best example. At present, the heat collecting devices of most ordinary solar water heaters use water medium to conduct heat exchange in vacuum glass heat collecting tubes to increase the water temperature, and the thermal efficiency is not high enough. In order to improve thermal efficiency, people in the industry have made various improvements to the structure of heat collecting devices, such as installing metal tubes in vacuum glass heat collecting tubes, etc., which have a certain effect on improving heat collecting efficiency. Nowadays, people have higher and higher requirements for the use of solar water heaters. They hope that they can not only supply hot water, but also provide indoor heating. Obviously, it is imperative to seek a solar heat collector with higher heat collection efficiency.

Contents of the invention

The utility model provides a heating system for a solar water heater and a heat collecting device thereof. The purpose of the invention is to realize heating by solar energy by improving the structure and heat collection mode of the solar heat collecting device.

The technical solution of the utility model:

The heating system of the solar water heater in the utility model includes a heat collecting device, a water storage tank and a hot water pipeline heating device, and a heating device. The heating device is a radiator connected to the heat medium pipeline of the water storage tank. through the radiator and back into the storage tank. A closed bromine-lithium liquid compound is arranged in the radiator, and the radiator can be arranged in a single piece, or a plurality of single pieces connected in parallel or in series. The heat collecting device of the utility model is to install a U-shaped metal tube in each vacuum glass heat collecting tube, and the pipe ends of each U-shaped metal tube are provided with a header box, and the header box communicates with the water storage tank through the inlet and outlet pipes. . The sun-facing surface of the outer wall of the U-shaped metal tube is wound and covered with a thin layer of aluminum. The heat collecting medium of the U-shaped metal tube is either water medium, or air, or other liquid substances with good heat conduction effect as the medium.

The beneficial effects of the utility model:

(1) The utility model not only can be used for heating, but also can be used for heating, which is more superior than existing solar water heaters;

(2) The technical support of the heating and heating system of the utility model is a U-shaped metal tube heat collecting device with higher heat collecting effect, so that the temperature of the hot water is greatly improved; and when the high-temperature heat medium pipeline passes through the heating In the film, when the bromine-lithium liquid compound is heated, it undergoes energy fusion, gasification and heat generation to become a superconducting medium, which enables the heating system to start quickly and heat up faster, meeting the needs of indoor heating;

(3) The heating system of the utility model is anhydrous, silent operation, no leakage, no leakage, no peculiar smell, clean and environment-friendly;

(4) Compared with other heating and heating methods, the heating and heating system of the present utility model saves energy, saves expenses, basically requires no maintenance, and has a long service life.

(5) The utility model can not only be used for heating in families and small-area offices, but also can be used for drying industrial and agricultural products.

Description of drawings

Accompanying drawing 1 is the structural representation of heating system of the utility model;

Accompanying drawing 2 is the structural representation of the utility model heat collecting device;

Accompanying drawing 3 is the structure diagram of the utility model system using air or other liquid substances as heat transfer medium.

Detailed ways

As shown in Figure 1,

The utility model uses water as the heat transfer medium, and its heating and heating system is mainly composed of a heat collecting device 1, a water storage tank 2, a hot water pipeline supply device 3, and a heating device 4. The radiator 41 of the heating device is connected in series in the figure. set up. The hot water pipeline 21 that water storage tank draws is divided into two roads, and all the way heating, all the way enters in the radiator, but does not communicate with the radiator inner cavity, and then returns to connect water storage tank again. The liquid compound of bromine lithium (not shown in the figure) is hermetically placed in the radiator.

as shown in picture 2,

The heat collecting device of the present utility model is mainly composed of a vacuum glass tube 11, a tube frame 12, a U-shaped metal tube 13, a header 14, and an inlet and outlet pipeline 15 connected to a water storage tank. The water storage tank is also connected with a hot water pipeline 21 and The cold water pipe 22 and the outer wall of the U-shaped pipe facing the sun are wound and covered with a thin layer of aluminum (not shown in the figure).

As shown in Figure 3,

When the utility model uses air or oil as the heat transfer medium, the water storage tank is a compound tank, and the central cavity 23 stores water and is heated by the hot water pipeline; the peripheral cavity 24 of the central cavity is connected with the heat collecting device through the inlet and outlet pipeline 15 The pipe box 14 is connected to each other; it enters and exits the radiator through the heat medium pipe 16, but does not communicate with the inner cavity of the radiator.

Below in conjunction with accompanying drawing, briefly describe the working process of the present utility model:

(1) Using water as the heat transfer medium:

When the water medium in the U-shaped metal tube of the heat collector absorbs the heat energy of the sun, the heat energy is continuously transferred to the water storage tank through the inlet and outlet pipes connected to the water storage tank, and the cold water in the water storage tank continues to heat up. People need hot water for use. , Obtained from the hot water pipe supply device. And when heating is needed, as long as the hot water pipe is opened to the valve of the radiator, the heat in the hot water pipe in the radiator induces the bromine-lithium liquid compound to heat up and vaporize. After testing, the radiator can heat up to 80°C in only 6-8 minutes, and the indoor temperature is increased to achieve the purpose of heating.

(2) Using air or oil as the heat transfer medium:

In order to match this kind of heat transfer medium and meet the requirements of heating and heating at the same time, the central inner cavity of the water storage tank stores water, and the outer peripheral cavity of the central inner cavity is used for the heat transfer medium to move, so that the central inner cavity and the outer peripheral cavity When people need hot water for use, they can obtain it from the hot water pipe drawn from the central cavity of the water storage tank. When heating is required, as long as the heat medium pipeline connected to the outer peripheral cavity of the water storage tank is opened to the valve of the radiator, the heat in the heat medium pipeline in the radiator will also induce the bromine-lithium liquid compound to heat up and vaporize to achieve the purpose of heating.

In addition, the system of the utility model is also matched with an intelligent control device, and components such as a pressure relief valve and a booster pump to ensure the normal operation of the system.

Claims (7)

1. A heating system for solar water heaters, comprising a heat collecting device, a water storage tank and a hot water pipeline supply device, characterized in that: it also includes a heating device, and the heating device is connected to the water storage tank through a heat medium pipeline The radiator, the heat medium pipeline passes through the radiator and returns to the water storage tank, and the closed bromine lithium liquid compound is arranged in the radiator. 2. A solar water heater heating system according to claim 1, characterized in that: the radiator is either arranged in a single piece, or a plurality of single pieces are arranged in parallel or in series. 3. A solar water heater heating system according to claim 1, characterized in that: the water storage tank is a compound tank with a central cavity and a peripheral cavity, and the hot water pipe supply device is connected to the central cavity ; The radiator of the heating device is connected with the peripheral cavity through the heat medium pipeline. 4. A heat collecting device for a heating system of a solar water heater as claimed in claim 1, comprising a vacuum glass heat collecting tube and a tube frame, characterized in that: it is installed in each vacuum glass heat collecting tube with a U-shaped metal The pipe ends of each U-shaped metal pipe are provided with a header box, and the header box is connected with the water storage tank through the inlet and outlet pipes. 5. The heat collecting device of the solar water heater heating system according to claim 4, characterized in that: the sunny side of the outer tube wall of the U-shaped metal tube is wrapped and covered with a thin layer of aluminum. 6. The heat collecting device of the solar water heater heating system according to claim 4, wherein the heat collecting medium of the U-shaped metal tube is either water, air or oil. 7. The heat collecting device of the solar water heater heating system according to claim 4, characterized in that: the header box of the heat collecting device is connected to the peripheral cavity of the water storage tank through the inlet and outlet pipes.

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