Leak detection device

Abstract

The utility model relates to the technical field of polycrystalline silicon, in particular to a leak detection device. The device comprises two half split type bases 6, a pressing part 1, a ball valve flange end sealing groove 2, a ball valve seat sealing groove 3 and a detection pressure gauge 4, a ball valve flange end sealing groove 2 is formed in one side of the interior of the split type base 6, and a ball valve seat sealing groove 3 is formed in the other side of the interior of the split type base 6. The two opposite sides of the outer portion of the split type base 6 are provided with the pressing components 1 respectively. And a detection pressure gauge 4 is arranged outside the split type base 6. The device has the advantages of being simple in structure, convenient to disassemble and assemble and convenient to detect.

Description

Technical Field

[0001] The utility model relates to the technical field of polysilicon, in particular to a leakage detection device. Background Art

[0002] In the production process of polysilicon, a large amount of raw silicon powder is required to be pressed into the reactor by hydrogen at about 3Mpa. In the process of adding silicon powder, the inner wall of the pipeline and valve is severely eroded, and long-term operation is prone to the risk of pipeline and valve damage. The silicon powder feed pipe can be made of thick-walled wear-resistant pipe to solve this problem. However, due to its own structure, the thickness of the valve seat neck of the reactor ball valve is relatively thin, and long-term operation is prone to valve cavity erosion and leakage. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a leakage detection device which has a simple structure, is easy to assemble and disassemble, and is easy to detect.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A leak detection device, the device comprising: a two-part split base 6, a pressing component 1, a ball valve flange end sealing groove 2, a ball valve seat sealing groove 3 and a detection pressure gauge 4;

[0006] A ball valve flange end sealing groove 2 is provided on one side of the split base 6, and a ball valve seat sealing groove 3 is provided on the other side;

[0007] The split base 6 is provided with pressing components 1 on two opposite sides of its exterior;

[0008] A detection pressure gauge 4 is arranged outside the split base 6 .

[0009] Furthermore, the sealing groove 2 at the ball valve flange end matches the ball valve flange.

[0010] Furthermore, the ball valve seat sealing groove 3 matches the ball valve seat.

[0011] Furthermore, a detection discharge valve 5 is arranged outside the split base 6 .

[0012] Furthermore, a screw hole 1 - 1 is provided on the pressing component 1 .

[0013] Furthermore, one end of the split base 6 is fixed to the radial end surface of the ball valve flange, and the other end is fixed to the valve seat of the ball valve. The two halves of the split base 6 are combined to form a sealed chamber 7.

[0014] Furthermore, the split base 6 is assembled by bolts passing through the screw holes 1-1.

[0015] The utility model provides a leak detection device, which determines the leakage situation at the neck of the reactor ball valve seat by detecting the pressure display of a pressure gauge 4, thereby avoiding leakage of materials in the reactor or escape of gas due to valve wear.

[0016] The utility model provides a leak detection device, which uses two half split bases 6, and the clamping parts 1 at both ends are connected by bolts. One end of the split base 6 is fixed to the radial end face of the ball valve flange, and the other end is fixed to the ball valve seat. The split bases 6 at both ends are combined to form a sealed chamber 7, and the leakage is determined by the detection pressure gauge 4. After the detection is completed, the detection discharge valve 5 is opened first. If there is a leak, the split base 6 is disassembled after the pressure is released to ensure safety.

[0017] Compared with the prior art, the leakage detection device provided by the utility model has the following advantages:

[0018] (1)Simple structure.

[0019] (2) Easy to disassemble and assemble.

[0020] (3) Easy to detect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a structural schematic diagram of a leakage detection device provided by the utility model.

[0022] Figure 2 The utility model is a schematic diagram of the side structure of a compression component of a leak detection device.

[0023] Figure 3 The utility model is a side view structural schematic diagram of a leakage detection device provided by the utility model.

[0024] In the figure: 1 is a clamping component, 2 is a sealing groove at the flange end of a ball valve, 3 is a sealing groove at a valve seat of a ball valve, 4 is a detection pressure gauge, 5 is a detection discharge valve, 6 is a split base, 7 is a sealing chamber, and 1-1 is a screw hole. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described in detail in the following embodiments. The following embodiments are only used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0026] A leak detection device, the device comprising: a two-part split base 6, a pressing component 1, a ball valve flange end sealing groove 2, a ball valve seat sealing groove 3 and a detection pressure gauge 4;

[0027] A ball valve flange end sealing groove 2 is provided on one side of the split base 6, and a ball valve seat sealing groove 3 is provided on the other side;

[0028] The split base 6 is provided with pressing components 1 on two opposite sides of its exterior;

[0029] A detection pressure gauge 4 is arranged outside the split base 6 .

[0030] Furthermore, the sealing groove 2 at the ball valve flange end matches the ball valve flange.

[0031] Furthermore, the ball valve seat sealing groove 3 matches the ball valve seat.

[0032] Furthermore, a detection discharge valve 5 is arranged outside the split base 6 .

[0033] Furthermore, a screw hole 1 - 1 is provided on the pressing component 1 .

[0034] Furthermore, one end of the split base 6 is fixed to the radial end surface of the ball valve flange, and the other end is fixed to the valve seat of the ball valve. The two halves of the split base 6 are combined to form a sealed chamber 7.

[0035] Furthermore, the split base 6 is assembled by bolts passing through the screw holes 1-1.

[0036] Example 1

[0037] A leak detection device, the device comprising: two half-split bases 6, a clamping component 1, a ball valve flange end sealing groove 2, a ball valve seat sealing groove 3 and a detection pressure gauge 4; the ball valve flange end sealing groove 2 is arranged on one side of the split base 6, and the ball valve seat sealing groove 3 is arranged on the other side; the clamping components 1 are arranged on two opposite sides of the outside of the split base 6; the detection pressure gauge 4 is arranged outside the split base 6.

[0038] The ball valve flange end sealing groove 2 matches the ball valve flange. The ball valve seat sealing groove 3 matches the ball valve seat. The clamping component 1 is provided with a screw hole 1-1. One end of the split base 6 is fixed to the radial end face of the ball valve flange, and the other end is fixed to the ball valve seat. The two halves of the split base 6 are combined to form a sealed chamber 7. The split base 6 is assembled by bolts through the screw holes 1-1.

[0039] Example 2

[0040] A leak detection device, the device comprising: two half-split bases 6, a clamping component 1, a ball valve flange end sealing groove 2, a ball valve seat sealing groove 3 and a detection pressure gauge 4; the ball valve flange end sealing groove 2 is arranged on one side of the split base 6, and the ball valve seat sealing groove 3 is arranged on the other side; the clamping components 1 are arranged on two opposite sides of the outside of the split base 6; the detection pressure gauge 4 is arranged outside the split base 6.

[0041] The ball valve flange end sealing groove 2 matches the ball valve flange. The ball valve seat sealing groove 3 matches the ball valve seat. The split base 6 is provided with a detection discharge valve 5. The clamping component 1 is provided with a screw hole 1-1. One end of the split base 6 is fixed to the radial end face of the ball valve flange, and the other end is fixed to the ball valve seat. The two halves of the split base 6 are combined to form a sealed chamber 7. The split base 6 is assembled by bolts through the screw holes 1-1.

[0042] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various changes can be made to the technical solution of the present invention. These simple modifications all belong to the protection scope of the present invention.

[0043] It should also be noted that the various specific technical features and steps described in the above specific implementation methods can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0044] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A leak detection device, characterized in that: The device comprises: a two-part split base (6), a pressing component (1), a ball valve flange end sealing groove (2), a ball valve seat sealing groove (3) and a detection pressure gauge (4); A ball valve flange end sealing groove (2) is provided on one side of the split base (6), and a ball valve seat sealing groove (3) is provided on the other side; The split base (6) is provided with pressing components (1) on two opposite sides of its exterior; A detection pressure gauge (4) is arranged outside the split base (6).

2. A leak detection device according to claim 1, characterized in that: The ball valve flange end sealing groove (2) matches the ball valve flange.

3. A leak detection device according to claim 1, characterized in that: The ball valve seat sealing groove (3) matches the ball valve seat.

4. A leak detection device according to claim 1, characterized in that: A detection discharge valve (5) is arranged outside the split base (6).

5. A leak detection device according to claim 1, characterized in that: The pressing component (1) is provided with a screw hole (1-1).

6. A leak detection device according to claim 1, characterized in that: One end of the split base (6) is fixed to the radial end face of the ball valve flange, and the other end is fixed to the valve seat of the ball valve. The two halves of the split base (6) are combined to form a sealed chamber (7).

7. A leak detection device according to claim 1, characterized in that: The split base (6) is assembled by bolts passing through screw holes (1-1).

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