CN203176509U - Solar vacuum heat-collection tube breakage leakage-proof device - Google Patents

Abstract

The utility model relates to solar water heater accessories, in particular to a solar vacuum heat-collection tube breakage leakage-proof device. The solar vacuum heat-collection tube breakage leakage-proof device comprises a leakage-proof valve body and a leakage-proof valve cover, wherein the leakage-proof valve body is of a hollow cylinder structure, the leakage-proof valve cover is arranged at the position of an opening in the leakage-proof valve body in a sealed mode, a valve rod is perpendicularly fixed on the bottom face of the leakage-proof valve cover, the bottom end of the valve rod penetrates through the bottom of the leakage-proof valve body and connected with the shell wall of the bottom of the leakage-proof valve body in a sliding mode, and a floating ball is fixed at the bottom end of the valve rod. A plurality of water-pervious holes are formed in the shell wall of the bottom of the leakage-proof valve body. The leakage-proof device is assembled in a tube opening of each vacuum heat-collection tube, once the condition that one vacuum heat-collection tube is broken occurs, the leakage-proof device can play a role in leakage prevention, normal use of other vacuum heat-collection tubes is not affected, and therefore under the condition that the broken vacuum heat-collection tube is not replaced, the solar energy can also be normally used.

Description

Anti-leakage device for solar vacuum heat collection tube damage

technical field

The utility model relates to a solar water heater and a solar heat collection engineering accessory, in particular to a damage and leakage prevention device for a solar vacuum heat collection tube.

Background technique

At present, the use of solar water heaters has been very extensive. However, since the vacuum heat collecting tubes of solar water heaters are made of glass, in actual use, the vacuum heat collecting tubes may be damaged from time to time. Once the vacuum heat collection tube is damaged, the water in the water storage tank will leak out through the damaged vacuum heat collection tube, which will cause the solar water heater to fail to work normally, and only a new vacuum heat collection tube can be replaced.

Utility model content

The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide a leak-proof device for solar vacuum heat collecting tube damage. Other evacuated heat collectors as well as normal use of solar energy.

In order to solve the above problems, the technical solution adopted in the utility model is:

A kind of anti-leakage device for solar vacuum heat collection tube damage, characterized in that it includes a leak-proof valve body and a leak-proof valve cover, the leak-proof valve body is a hollow cylindrical structure, and the leak-proof valve cover is sealed and arranged on the leak-proof The opening of the valve body; the bottom surface of the leak-proof valve cover is vertically fixed with a valve stem, and the bottom end of the valve stem runs through the bottom of the leak-proof valve body and is connected to the shell wall at the bottom of the leak-proof valve body. For sliding connection, a floating ball is fixed on the bottom end of the valve stem; several permeable holes are arranged on the shell wall at the bottom of the leak-proof valve body.

Further on:

A spring is sleeved on the valve stem located inside the anti-leakage valve body.

A sealing ring is sleeved on the outer wall of the leak-proof valve cover.

Both the outer diameter of the leak-proof valve body and the outer diameter of the top of the leak-proof valve cover are slightly larger than the inner diameter of the nozzle of the solar vacuum heat collecting tube.

The floating ball is a stainless steel hollow ball.

Beneficial effects: compared with the prior art, the leak-proof device described in the utility model is assembled in the nozzle of each vacuum heat collecting tube. In the actual use process, once the vacuum heat collecting tube is damaged, it will The anti-leakage device at the nozzle of the heat collecting tube will prevent leakage, preventing the water in the solar water storage tank from leaking through the damaged vacuum heat collecting tube, and will not affect the normal use of other vacuum heat collecting tubes. It can also be used normally in the case of damaged vacuum heat collecting tubes.

Description of drawings

Fig. 1 is a structural schematic view of the utility model assembled in a vacuum heat collecting tube.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

Referring to FIG. 1 , the leak-proof device for solar vacuum heat collecting tube damage described in the utility model includes a leak-proof valve body 3 and a leak-proof valve cover 4 . The anti-leakage valve body 3 is a hollow cylindrical structure, the anti-leakage valve cover 4 is sealingly arranged at the opening of the anti-leakage valve body 3 , and the outer wall of the anti-leakage valve cover 4 is covered with a sealing ring 5 . The outer diameter of the leak-proof valve body 3 and the outer diameter of the top of the leak-proof valve cover 4 are slightly larger than the inner diameter of the nozzle of the vacuum heat collecting tube 1, and the leak-proof valve body 3 and the nozzle inner wall of the vacuum heat collecting tube 1 are clearance fit , so that the device can be prevented from slipping from the nozzle of the vacuum heat collecting tube 1 to the inside of the vacuum heat collecting tube 1 during use. The bottom surface of the anti-leak valve cover 4 is vertically fixed with a valve stem 7, and the bottom end of the valve stem 7 runs through the bottom of the anti-leak valve body 3, and is connected to the shell wall at the bottom of the anti-leak valve body 3. Swipe to connect. A spring 6 is sleeved on the valve stem located inside the anti-leakage valve body 3, and a floating ball 2 is fixed on the bottom end of the valve stem 7. In this embodiment, the floating ball 2 is a stainless steel hollow ball. Several permeable holes 8 are arranged on the shell wall at the bottom of the anti-leakage valve body 3 .

When assembling solar energy, first ensure that the vacuum heat collecting tube 1 is filled with water, and a leak-proof device is installed in the mouth of each vacuum heat collecting tube. The vacuum heat collecting tube 1 is filled with water, and the floating ball 2 floats upward under the buoyancy of the water. In this device, the sum of the thrust of the spring 6 on the leak-proof valve cover 4 and the buoyancy of the water on the floating ball 2 is greater than the sum of the gravity of the leak-proof valve cover 4 and the floating ball 2, and the spring force of the spring 6 is smaller than that of the leak-proof valve cover 4 and the sum of the gravity of the float 2.

During normal use, the vacuum heat collecting tube 1 is filled with water, because the sum of the gravity of the leak-proof valve cover 4 and the floating ball 2 is less than the sum of the thrust of the spring 6 on the leak-proof valve cover 4 and the buoyancy of the water on the floating ball 2, so , The leak-proof valve cover 4 is separated from the opening of the leak-proof valve body 3, thereby ensuring that the solar water heater storage tank is communicated with the vacuum heat collecting tube 1. Once the vacuum heat collection tube is damaged, the water originally stored in the vacuum heat collection tube leaks out, and the floating ball 2 loses its buoyancy. The leakage valve cover 4 sinks to seal the leak-proof valve body 3, thereby preventing water in the solar water storage tank from leaking through the damaged vacuum heat collecting tube, so that the solar water heater can be used normally without replacing the damaged vacuum heat collecting tube.

The anti-leakage device described in the utility model can not only be applied to domestic solar water heaters, but also can be applied to solar heat collection projects.

Claims (5)

1. A kind of anti-leakage device for damage of solar vacuum heat collecting tube, is characterized in that: comprise anti-leakage valve body (3) and anti-leakage bonnet (4), described anti-leakage valve body (3) is a hollow cylinder structure; The leak-proof bonnet (4) is sealed and arranged at the opening of the leak-proof valve body (3); the bottom surface of the leak-proof bonnet (4) is vertically fixed with a valve stem (7), and the valve stem (7) ) runs through the bottom of the anti-leakage valve body (3), and is slidingly connected with the shell wall at the bottom of the anti-leakage valve body (3), and a floating ball is fixed on the bottom end of the valve stem (7) (2); the shell wall at the bottom of the anti-leakage valve body (3) is provided with several permeable holes (8). 2. The anti-leakage device for solar vacuum heat collection tube damage according to claim 1, characterized in that a spring (6) is sleeved on the valve stem located inside the anti-leakage valve body (3). 3. The anti-leakage device for solar vacuum heat collection tube damage according to claim 2, characterized in that: the outer wall of the anti-leakage valve cover (4) is covered with a sealing ring (5). 4. The anti-leakage device for solar vacuum heat collection tube damage according to claim 1 or 3, characterized in that: the outer diameter of the anti-leakage valve body (3) and the outer diameter of the top of the anti-leakage valve cover (4) are slightly different. greater than the inner diameter of the solar vacuum heat collecting tube (1) nozzle. 5. The leak-proof device for solar vacuum heat collection tube damage according to claim 4, characterized in that: the floating ball (2) is a stainless steel hollow ball.

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