A flange leak detection tool

Abstract

The utility model relates to flange detection tool technical field, and disclose a kind of flange leakage detection tool, comprising: conveying assembly, detection assembly is installed on conveying assembly, conveying assembly is also installed with protection assembly, conveying assembly includes conveying pipe A, conveying pipe A one end is provided with conveying pipe B, detection assembly includes seamless tube, seamless tube is arranged between conveying pipe A and conveying pipe B, one side of seamless tube is provided with notch, notch and conveying pipe A and conveying pipe B between clearance correspond, the utility model is installed to two groups of flange plate between seamless tube by setting detection assembly, after then, through the limiting of fixed ring to seamless tube, then again protection shell A and protection shell B are installed to conveying pipe A and conveying pipe B, when needing to check whether flange plate leaks in later period, through pump suction type detection instrument cooperation seamless tube can carry out sampling to the gas around flange plate, then through pump suction type detection instrument and carry out detection.

Description

Technical Field

[0001] This utility model relates to the technical field of flange inspection tools, and in particular to a flange leakage detection tool. Background Technology

[0002] A flange, also known as a flange plate or flange, is a mechanical part used for connecting pipes, containers, equipment, etc. It is usually disc-shaped with evenly distributed bolt holes. The two parts are detachably connected by bolts. It is widely used in industrial fields (such as chemical, petroleum, power, water supply and drainage, etc.) and is one of the core components of pipeline systems and equipment connections.

[0003] In the production of hazardous chemicals, some hazardous chemicals require storage, transportation, and reaction equipment with specific temperature environments. To reduce energy loss, sealed insulation layers are added to the outside of pipelines or equipment. However, it is impossible to detect whether there are leaks at the flanges connecting pipelines and equipment or between pipelines, which can easily lead to the accumulation of flammable and explosive gases. The chemicals inside pipelines or equipment often have flammable, explosive, or toxic and harmful properties. Flanges should be inspected regularly, and any micro-leaks or seepage should be dealt with promptly to avoid leakage incidents during use.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: In order to ensure its normal operation, most existing devices will install a closed insulation layer on the outside of the flange. This design can effectively reduce heat exchange and maintain a suitable working temperature inside the device, providing an important guarantee for the stable operation of the entire system. However, the insulation layer tightly wraps the flange, making it difficult for the detection instrument to directly contact the flange interface, making it impossible to quickly and accurately collect gas samples that may be leaking, thereby increasing the operational difficulty and time cost of each test. Utility Model Content

[0005] The technical problem to be solved by this utility model is that, due to the addition of a sealed insulation layer, it is inconvenient to inspect the flange interface in the prior art. Therefore, we propose a flange leakage detection tool.

[0006] To achieve the above objectives, this application adopts the following technical solution: a flange leakage detection tool, comprising: a conveying assembly, a detection assembly mounted on the conveying assembly, and a protection assembly also mounted on the conveying assembly. The conveying assembly includes a conveying pipe A, and a conveying pipe B is provided at one end of the conveying pipe A. The detection assembly includes a seamless pipe, which is disposed between the conveying pipe A and the conveying pipe B. A cut is provided on one side of the seamless pipe, and the cut corresponds to the gap between the conveying pipe A and the conveying pipe B.

[0007] Preferably, flanges are fixedly connected to both conveying pipe A and conveying pipe B. The flanges are assembled together by multiple sets of bolts and nuts, and the inner cavities of conveying pipe A and conveying pipe B are connected.

[0008] It is used to conveniently assemble conveying pipe A and conveying pipe B together, and then carry out the medium conveying operation through conveying pipe A and conveying pipe B.

[0009] Preferably, the cut length is the minimum length at the flange connection, and the diameter of the seamless pipe is smaller than the distance between the two sets of flanges;

[0010] This is used to conveniently install seamless pipes between two sets of flanges, thereby facilitating the sampling of gas between the two sets of flanges.

[0011] Preferably, a plug is installed at the output end of the seamless tube, and a retaining ring is installed on the outer surface of the seamless tube, the width of which corresponds to the spacing between the two sets of flanges;

[0012] This is used to facilitate operators in sealing the output and sampling ends of the seamless tube, preventing external objects from entering the sampling end and affecting subsequent sampling work.

[0013] Preferably, the protective component includes a protective housing A, a protective housing B is disposed below the protective housing A, the protective housing A and the protective housing B are installed on the conveying pipe A and the conveying pipe B, the connection between the conveying pipe A and the conveying pipe B is disposed in the sealed space formed by the protective housing A and the protective housing B, and an insulation layer is disposed in the sealed space formed by the protective housing A and the protective housing B.

[0014] Used to protect the insulation layer from direct exposure to the environment, which could affect its service life.

[0015] Preferably, a protective pad A is fixedly connected to the inner surface of the protective shell A, and a protective pad B is fixedly connected to the inner surface of the protective shell B, with the protective pad A and the protective pad B corresponding to the conveying pipe A and the conveying pipe B;

[0016] Used to prevent protective housing A and protective housing B from directly contacting the outer surfaces of conveying pipe A and conveying pipe B, and to prevent damage to the anti-corrosion coating on the outer surfaces of conveying pipe A and conveying pipe B.

[0017] Preferably, mounting plates A are fixedly connected to both sides of the protective shell A, and mounting plates B are fixedly connected to both sides of the protective shell B. Mounting plates A and mounting plates B are assembled together by bolts and nuts.

[0018] Used to easily assemble protective case A and protective case B together.

[0019] Preferably, the protective housing B has a through hole, and the seamless tube output end extends through the through hole to the outside of the protective housing B;

[0020] This is designed to facilitate subsequent operations where personnel can directly sample the gas between the flanges using seamless pipes.

[0021] The technical effects and advantages of this utility model are as follows: In this utility model, after assembling the conveying pipe A and the conveying pipe B together using two sets of flanges, the seamless pipe is installed between the two sets of flanges. Then, the seamless pipe is limited by a fixing ring. After that, the protective shell A and the protective shell B are installed on the conveying pipe A and the conveying pipe B. When it is necessary to check whether the flange is leaking later, the gas around the flange can be sampled by a pump-suction detection instrument in conjunction with the seamless pipe, and then detected by the pump-suction detection instrument. Attached Figure Description

[0022] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0023] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0024] Figure 2 This is a schematic diagram of the conveying component structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the detection component structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the exploded structure of the protective component of this utility model;

[0027] Figure 5 This is a schematic diagram of the seamless tube portion of this utility model.

[0028] Legend: 1. Conveying assembly; 11. Conveying pipe A; 12. Conveying pipe B; 13. Flange; 2. Detection assembly; 21. Seamless pipe; 22. Cut; 23. Plug; 24. Retaining ring; 3. Protection assembly; 31. Protective housing A; 311. Mounting plate A; 32. Protective pad A; 33. Protective housing B; 331. Through hole; 332. Mounting plate B; 34. Protective pad B. Detailed Implementation

[0029] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0030] Reference Figures 1 to 5As shown, this utility model provides a technical solution: a flange leakage detection tool, including: a conveying assembly 1, a detection assembly 2 installed on the conveying assembly 1, and a protection assembly 3 installed on the conveying assembly 1. The conveying assembly 1 includes a conveying pipe A11, and a conveying pipe B12 is provided at one end of the conveying pipe A11. The detection assembly 2 includes a seamless pipe 21, which is disposed between the conveying pipe A11 and the conveying pipe B12. A cut 22 is provided on one side of the seamless pipe 21, and the cut 22 corresponds to the gap between the conveying pipe A11 and the conveying pipe B12.

[0031] By using flange 13 with bolts and nuts, delivery pipes A11 and B12 can be quickly assembled together. Then, seamless pipe 21 is installed in the gap between the two flanges 13, with the cut 22 facing the central axis of delivery pipes A11 and B12. This allows seamless pipe 21 to better collect the gas between the two flanges 13. Later, with the help of a pump-suction detection instrument, the air between the two flanges 13 can be directly pumped into the instrument. The pump-suction detection instrument can then be used to test the extracted air to determine whether there is a leak in flange 13.

[0032] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, this utility model provides a technical solution: a flange leakage detection tool, wherein flanges 13 are fixedly connected to both the conveying pipe A11 and the conveying pipe B12, and the flanges 13 are assembled together by multiple sets of bolts and nuts. The inner cavities of the conveying pipe A11 and the conveying pipe B12 are connected. The length of the cut 22 is the minimum length of the flange 13 connection. The diameter of the seamless pipe 21 is smaller than the distance between the two sets of flanges 13.

[0033] In the actual installation process, because flanges 13 are installed on both conveying pipe A11 and conveying pipe B12, it is easier for operators to assemble conveying pipe A11 and conveying pipe B12 together. Also, because the diameter of seamless pipe 21 is smaller than the distance between the two sets of flanges 13, it is easier for operators to install seamless pipe 21 in the designated position.

[0034] Reference Figures 1 to 5As shown, this utility model provides a technical solution: a plug 23 is installed at the output end of the seamless pipe 21, and a fixing ring 24 is installed on the outer surface of the seamless pipe 21. The width of the fixing ring 24 corresponds to the distance between the two sets of flanges 13. The protective assembly 3 includes a protective shell A31, and a protective shell B33 is provided below the protective shell A31. The protective shell A31 and the protective shell B33 are installed on the conveying pipe A11 and the conveying pipe B12. The connection between the conveying pipe A11 and the conveying pipe B12 is located in the sealed space formed by the protective shell A31 and the protective shell B33. An insulation layer is provided inside the sealed space. A protective pad A32 is fixedly connected to the inner surface of the protective shell A31, and a protective pad B34 is fixedly connected to the inner surface of the protective shell B33. The protective pads A32 and B34 correspond to the conveying pipes A11 and B12. Mounting plates A311 and B332 are fixedly connected to both sides of the protective shell A31 and B332, respectively. Mounting plates A311 and B332 are assembled together by bolts and nuts. A through hole 331 is provided on the protective shell B33, and the output end of the seamless tube 21 extends through the through hole 331 to the outside of the protective shell B33.

[0035] By installing a plug 23 at the output end of the seamless pipe 21, external impurities are prevented from entering the seamless pipe 21 when sampling is not being performed, thus preventing blockage and affecting subsequent sampling. Furthermore, by setting up protective shells A31 and B33, along with their corresponding protective pads A32, B34, mounting plates A311 and B332, operators can easily assemble protective shells A31 and B33 together to protect the insulation layer. In actual production, appropriate materials are selected to manufacture components such as protective shells A31, B33, and A32 based on the medium transported in the conveying pipes A11 and B12. Simultaneously, a through hole 331 is opened on the protective shell B33, allowing the output end of the seamless pipe 21 to extend through the through hole 331 to the outside of the protective shell B33, making it easier to detect leaks between the flanges 13 later.

[0036] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A flange leakage detection tool, characterized in that, include: A conveying assembly is provided, on which a detection assembly is installed, and a protection assembly is also installed. The conveying assembly includes a conveying pipe A, and a conveying pipe B is provided at one end of the conveying pipe A. The detection assembly includes a seamless pipe, which is provided between the conveying pipe A and the conveying pipe B. A slit is provided on one side of the seamless pipe, and the slit corresponds to the gap between the conveying pipe A and the conveying pipe B.

2. The flange leakage detection tool according to claim 1, characterized in that: Both conveying pipe A and conveying pipe B are fixedly connected to flanges, which are assembled together by multiple sets of bolts and nuts, and the inner cavities of conveying pipe A and conveying pipe B are connected.

3. The flange leakage detection tool according to claim 2, characterized in that: The cut length is the minimum length at the flange connection, and the diameter of the seamless pipe is smaller than the distance between the two sets of flanges.

4. The flange leakage detection tool according to claim 2, characterized in that: A plug is installed at the output end of the seamless tube, and a fixing ring is installed on the outer surface of the seamless tube. The width of the fixing ring corresponds to the distance between the two sets of flanges.

5. The flange leakage detection tool according to claim 1, characterized in that: The protective component includes a protective housing A, and a protective housing B is disposed below the protective housing A. The protective housing A and the protective housing B are installed on the conveying pipe A and the conveying pipe B. The connection between the conveying pipe A and the conveying pipe B is disposed in the sealed space formed by the protective housing A and the protective housing B. An insulation layer is disposed in the sealed space formed by the protective housing A and the protective housing B.

6. The flange leakage detection tool according to claim 5, characterized in that: A protective pad A is fixedly connected to the inner surface of the protective shell A, and a protective pad B is fixedly connected to the inner surface of the protective shell B. The protective pads A and B correspond to the conveying pipe A and the conveying pipe B.

7. The flange leakage detection tool according to claim 5, characterized in that: Mounting plates A are fixedly connected to both sides of the protective shell A, and mounting plates B are fixedly connected to both sides of the protective shell B. Mounting plates A and B are assembled together by bolts and nuts.

8. The flange leakage detection tool according to claim 5, characterized in that: The protective housing B has a through hole, and the output end of the seamless tube extends through the through hole to the outside of the protective housing B.

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