CN101012970A - Non-contact solar collector - Google Patents

Abstract

In order to improve the stability and the durability of a solar water heater system and achieve the perfect combination with a building, the invention can provide the solar heat collector which can meet the requirement. The non-contact solar heat collector comprises an outer barrel (2), a heat insulation layer (3), an inner container (4), a fixing frame (14) and a plurality of vacuum tubes (8), wherein the inner container (4) is arranged in the outer barrel (2), the heat insulation layer (3) is clamped between the outer barrel and the inner container, the inner container (4) is provided with a water inlet and a water outlet, the non-contact solar heat collector is characterized in that aluminum wings (9) and a metal tube (10) are arranged in the vacuum tubes (8), the metal tube (10) is connected with the inner container (4), the connection position is sealed by a pressure-bearing steel double-clamping sleeve joint (7), the metal tube (10) is inserted into the middle of the inner container (4) to facilitate the sufficient thermal circulation of media in the inner container (4), and the vacuum tubes (8) penetrate through the outer.

Description

Non-contact solar collector

technical field

The invention relates to a solar heat collector with a built-in heat-conducting metal tube in an all-glass vacuum heat collection tube, which is suitable for a solar water heating system with high requirements for stability performance and high requirements for building combination.

Background technique

There are also some split pressurized solar collectors on the market now, which are mainly divided into two types: 1. U-shaped tube collectors; 2. Heat pipe collectors. The former U-shaped tube heat collector is also a medium in the metal tube through forced circulation heat exchange, the amount of copper tube is more, the welding requirements are higher, and the cost is higher. The latter type of heat pipe collector uses a vacuumized copper tube, which contains a heat transfer medium that vaporizes at high temperature and condenses at low temperature. Due to the short life of the heat pipe, the life of the whole machine is also reduced, and the production cost is high and the price is high. .

Contents of the invention

In order to improve the stability and durability of the solar water heater system and achieve a perfect combination with the building, the utility model can provide a solar collector that can meet this requirement.

The technical scheme adopted in the present invention is:

It includes an outer barrel, an insulation layer, an inner container, a fixing frame and a plurality of vacuum tubes. The inner container is placed in the outer barrel with an insulating layer interposed between the two. The vacuum tube is equipped with aluminum wings and metal tubes, and the metal tube is connected with the inner tank. The joint is sealed with a pressure-bearing steel double ferrule joint, and the metal tube is inserted into the middle of the inner tank, which is conducive to sufficient heating with the medium in the inner tank Circulation, the vacuum tube is inserted through the outer barrel into the insulation layer.

The aluminum wing adopts a multi-piece arc-shaped sheet structure, and is closely attached to the inner wall of the vacuum tube and the outer wall of the metal tube, so that it can fully conduct the heat from the inner wall of the vacuum tube to the metal tube.

The outer connection of the connection faucet at the connection between the metal pipe and the inner tank is sealed with a pressure-bearing steel double-barrel joint, which is convenient and quick to install.

The connection between the vacuum tube and the outer barrel is sealed with a silicone ring.

There is an adjustable tube support at the bottom of each vacuum tube.

Compared with the prior art, the present invention has the following advantages:

The non-contact solar heat collector of the present invention has good stability, can be perfectly combined with the building, and can operate under pressure. It is a metal tube solar heat collector without medium in the vacuum tube. The metal tube is directly connected with the inner tank. The medium gradually heats up through natural circulation in the metal tube, and then circulates the hot water in the inner tank back to the water storage tank through forced circulation. There is no medium in the vacuum tube, which can prevent the vacuum tube from blowing up. Even if multiple vacuum tubes are damaged, it will not affect the operation of the entire system.

The non-contact solar heat collector of the invention can overcome the disadvantages of the existing models, and has reasonable price and long service life. It can be directly connected to the building body through the fixing frame, the fixing is firm, and the overall structure is perfectly combined with the building.

Description of drawings

Figure 1 is a side sectional view of the collector.

Figure 2 is a front view of the collector.

Figure 3 is a schematic diagram of the internal structure of the vacuum tube.

Detailed ways

Below in conjunction with accompanying drawing, the present invention will be further described:

In the picture: 1-Bucket support 2-Outer barrel 3-Insulation layer 4-Inner liner 5-Connecting spout 6-Silicone ring 7-Pressure steel double-barrel joint 8-Vacuum tube 9-Aluminum wing 10-Metal tube 11-horizontal frame 12-adjustable tube holder 13-shield 14-fixed frame 15-outer glass tube 16-inner glass tube

As shown in Fig. 1 and Fig. 2, the non-contact solar heat collector of the present invention comprises a bucket support (1), an outer bucket (2), an insulation layer (3), and is provided with an inner container ( 4), the fixed frame (14), a plurality of vacuum tubes (8), metal tubes (10) and aluminum wings (9), the liner (4) is placed in the outer barrel (2), and a The insulation layer (3) is provided with a bucket holder (1) under the outer bucket (2). The vacuum tube (8) is made up of an outer glass tube (15) and an inner glass tube (16), as shown in Figure 3, the vacuum tube (8) is sheathed with a metal tube (10) and adapted thereto. One end of the metal pipe (10) is sealed, and the other end is directly connected with the inner bag (4). The heating medium between the metal pipe (10) and the inner bag (4) generally can be water. The connecting portion is sealed by a connecting faucet (5), and the outer side of the connecting faucet (5) is provided with a pressure-bearing steel double ferrule joint (7) and a metal pipe (10) for sealing. The metal tube (10) is inserted into the middle of the inner tank (4), which is conducive to sufficient heat exchange with the medium in the inner tank (4), and the aluminum wing (9) adopts two curved aluminum sheets that fit up and down, as shown in Figure 3 Shown aluminum wing upper piece (17), aluminum wing lower piece (18), and is fixed on the metal pipe (10). The solar energy absorbed by the vacuum tube (8) is transmitted to the metal tube (10) through the aluminum wing (9) like this, and the metal tube (10) transmits the energy to the medium again, and the medium heats up through natural circulation in the metal tube (10).

The vacuum tube (8) is inserted into the insulation layer (3) through the outer barrel (2), and the joint between the vacuum tube (8) and the outer barrel (2) is sealed with a silicone ring (6). The bottom of each vacuum tube (8) is provided with an adjustable tube support (12), so as to adjust the position of the vacuum tube (8) during installation. The bottom of the vacuum tube (8) is provided with a shield (13), a horizontal frame (11) and a fixing frame (14), which are used to protect and support the vacuum tube (8).

Because the present invention adopts the metal tube (10) to directly communicate with the inner tank (8), the medium heats up through natural circulation in the metal tube (10), and then returns to the inner tank (4) through forced circulation, and the vacuum tube (8) does not go out. medium. It can prevent tube explosion, and the damage of single or multiple tubes will not affect the operation of the entire system. The solar heat collector is directly connected with the building body through the fixing frame (14), and is firmly fixed, and the overall structure is perfectly combined with the building.

Claims (5)

1, a kind of non-contact type solar heat collector, it comprises outer bucket (2), heat-insulation layer (3), inner bag (4), fixed mount (14) and many vacuum tubes (8), inner bag (4) places in the outer bucket (2), and establish heat-insulation layer (3) in folder between the two, inner bag (4) is provided with into, delivery port, it is characterized in that in its described vacuum tube (8) the aluminium wing (9) being housed, metal tube (10), metal tube (10) connects with inner bag (4), two cutting ferrule pipe joint (5) sealings of pressure-bearing steel are adopted in the connection place, metal tube (10) is inserted in the middle of the inner bag (4), help and the sufficient heat exchange of inner bag (4) medium, vacuum tube (8) passes outer bucket (2) and inserts in the heat-insulation layers (3).

2, solar heat collector according to claim 1, it is characterized in that the described aluminium wing (9) adopts multiple-piece arc laminated structure, and be close to the inwall of vacuum tube (8) and the outer wall of metal tube (10), it is fully conducted to the heat of vacuum tube (8) inwall on the metal tube.

3, solar heat collector according to claim 1 is characterized in that the sealing that is communicated with the place at metal tube (10) with inner bag (4) adopts the two cutting ferrule pipe joints (5) of pressure-bearing steel.

4, solar heat collector according to claim 1 is characterized in that the described vacuum tube (40) and the junction employing silica gel circle of outer bucket (2) seal (6).

5, solar heat collector according to claim 1 is characterized in that every vacuum tube bottom is provided with adjustable conduit saddle (12).

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