CN205208961U - Pressure -bearing type solar water heater - Google Patents

Abstract

The utility model discloses a pressure-bearing solar water heater, which is composed of an all-glass vacuum solar heat collecting tube, a water tank shell, a non-pressure-bearing inner tank, a pressure-bearing inner tank and a series of water nozzles. In terms of structure, the water heater uses the all-glass vacuum solar heat collecting tube on the non-pressure-bearing solar water heater as the heat-collecting part, and innovatively designs the structure of the water tank. When the user uses it, there will be no problem that the pressure of the non-pressurized solar water heater depends on the gravity drop and the water pressure of the hot water is small, and the installation position of the pressurized solar water heater is no longer limited to be higher than the point of use of the hot water, and a suitable location can be selected Install nearby; Compared with the heat pipe vacuum tube solar collector water heater, it can effectively reduce the manufacturing cost, and can achieve the same function as the heat pipe vacuum tube solar collector water heater; The ring supporting structure between the end caps of the liner is simple and has good sealing effect.

Description

Pressurized solar water heater

technical field

The utility model relates to a pressurized solar water heater, which belongs to the field of solar energy applications.

Background technique

At present, pressurized solar energy is more and more widely used; pressurized solar water heater is a solar water heater using a pressurized water tank. This pressurized water tank can provide strong water pressure. It directly uses the pressure of the water supply pipe network as the hot water outlet pressure, so that the hot water pressure is equal to the cold water pressure. This pressurized solar water heater solves the problem of ordinary roof-type solar energy relying on gravity drop for hot water with low water pressure, and the water pressure makes bathing more comfortable.

This pressurized solar water heater uses all-glass vacuum solar collector tubes to collect heat, and transfers heat to the water in the non-pressurized inner tank, and the heat of the non-pressurized inner water is transferred to the pressure-bearing inner tank through the wall of the pressurized inner tank. Water, so as to achieve the heating of the water stored in the pressurized inner tank, so that it has the same effect as the pressurized solar water heater.

Utility model content

The purpose of the utility model is to adopt the non-pressurized solar components, and make it have the function of the pressurized solar energy through the design innovation of the structure.

The structural arrangement adopted by the utility model to solve its technical problems is as follows: a pressure-bearing inner tank is placed inside the non-pressure-bearing inner tank, and a T/P valve interface, a cold water inlet and a hot water outlet are installed on the pressure-bearing inner tank , the inlet and outlet nozzles of the pressure-bearing inner tank and the end caps of the non-pressure-bearing inner tank are sealed by a silicone ring, and the supporting ring supports the pressure-bearing inner tank; the system collects solar heat through an all-glass solar vacuum heat collection tube, and the collected heat directly heats the whole The water in the glass vacuum heat collection tube heats the water contained in the non-pressurized inner tank by using the microcirculation principle of cold water sinking and hot water floating up. The water in the inner tank produces a temperature difference, that is, heat transfer occurs, and the temperature of the water in the pressure-bearing inner tank is the same as that of the water contained in the non-pressure-bearing inner tank; therefore, the purpose of heating the water in the pressure-bearing inner tank is achieved;

Effect of the present utility model:

This pressurized water heater adopts all-glass vacuum solar heat collector tubes to collect heat. When users use hot water, the water pressure makes bathing comfortable, and there will be no problem of non-pressurized solar energy relying on gravity drop hot water pressure is small, and this pressurized water heater The installation location is no longer limited to be higher than the hot water use point, but can be installed at a position lower than the hot water use point, which can achieve the same effect as pressurized solar energy;

The water temperature in the non-pressurized inner tank is always lower than 100°C. According to the principle of heat transfer, the temperature of the transferred object is at most consistent with the temperature of the transferred object; therefore, the water temperature in the pressurized inner tank is always lower than 100°C, which can be effectively Increase the service life of the pressure-bearing liner;

The contact area between the pressure-bearing liner and the non-pressure-bearing liner is large (the entire pressure-bearing liner is soaked in the non-pressure-bearing liner). When the user uses hot water, cold water automatically enters the pressure-bearing water tank, and then the non-pressure-bearing liner The water in the tank exchanges heat with the cold water in the pressurized inner tank, which can heat the cold water in time, and will not reduce the amount of hot water used due to the small volume of the pressurized inner tank;

The water in the non-pressurized liner does not need to be used, so there will be no phenomenon of suction, and the wall thickness of the pressure-bearing liner is thicker, so there will be no phenomenon of suction during use;

The price of the all-glass vacuum solar collector tube is lower than that of the heat pipe vacuum tube solar collector tube used in pressurized solar energy.

Description of drawings

Accompanying drawing 1 is the structural schematic diagram of the utility model pressurized solar water heater.

Accompanying drawing 2 is the schematic diagram of the sealing connection between the pressure-bearing inner tank and the non-pressure-bearing outer tank end cover of the practical pressure-bearing solar water heater

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

As shown in Figure 1 and Figure 2, the structure of this practical pressurized solar water heater mainly includes the following parts: exhaust port 1, water outlet of the pressure inner tank 2, drain port 3, water inlet of the pressure inner tank 4, non bearing Pressure liner water inlet 5, T/P valve port 6, pressure liner 7, non-pressure liner 8, water tank shell 9, faucet 10, support ring 11, rubber sealing ring 12. The pressurized solar water heater includes a barrel-shaped water tank shell 9, a non-pressure-bearing inner tank 8 and a pressure-bearing inner tank 7 from the outside to the inside, and the three constitute a tank-in-tank structure; The center of the pressure-bearing inner tank 8 left and right end caps, the pressure-bearing inner tank water inlet 5, the pressure-bearing inner tank water outlet 2 water nozzles pass through the non-pressure-bearing inner tank 8 left and right end caps, the contact area is sealed with a rubber sealing ring 12, and the support ring 11 supports the faucet 10 to prevent the weight of the pressure-bearing liner 7 from being fully borne by the rubber sealing ring 12, thereby affecting the sealing effect.

Claims (2)

1. A pressurized solar water heater is characterized in that, from the outside to the inside, it comprises successively a barrel-shaped water tank shell (9), a non-pressurized inner tank (8) and a pressurized inner tank (7), three The person constitutes a tank-in-tank structure, and has a T/P valve port (6), a cold water inlet (4), and a hot water outlet (2) on the pressure-bearing inner tank (7). 2. The pressurized solar water heater according to claim 1, characterized in that, the annular support ring (11) is welded on the end cover of the non-pressurized inner tank (8), and the pressure-bearing inner tank (8) 7) The faucets on both sides are supported.