Pipeline blind plugging device
By designing a pipe blind blocking device including a connecting rod, a sealing mechanism, a adjusting member and a replacement pipe, the deformable seal is used to closely contact the inner wall of the pipe, and the complex blind blocking structure and lack of nitrogen replacement function in the prior art are solved. Problem, the combination of simplified structure and nitrogen replacement function is achieved, reducing costs and improving sealing effect.
Patent Information
- Application Number
- CN202421007476.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The existing pipeline blind blocking device is too complex when blind blocking the end of the pipeline, which increases costs and does not have the function of nitrogen replacement, making it difficult to protect catalysts in high-temperature and high-pressure systems.
A blind blocking device for pipes including connecting rods, sealing mechanisms, adjusting parts and replacement pipes is designed. The deformable seal is used to make close contact with the inner wall of the pipe, sealing is achieved, and nitrogen replacement is performed through the replacement pipe.
The blind blocking structure is simplified, the cost is reduced, and the nitrogen replacement function is equipped, which can effectively protect metals and dangerous gases in high-temperature and high-pressure systems, improving the sealing effect and operation convenience.
Smart Images
Figure CN222186237U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline blind plugging, in particular to a pipeline blind plugging device. Background Art
[0002] The synthetic ammonia equipment is a high-temperature and high-pressure system, and there are various hazardous media such as hydrogen, nitrogen, and ammonia in the system. During the maintenance of the synthetic ammonia equipment, the system needs to be depressurized and replaced. Because the synthesis tower is equipped with a catalyst, it is difficult for the system to ensure that the replacement is qualified, and the catalyst in the synthesis tower needs to be protected. In the past maintenance process, the maintenance equipment needs to be isolated from the system with a blind plate, and the blind plate needs to be removed after the maintenance is completed. Because it is a high-pressure system, it takes a lot of time and manpower to pull out and insert the blind plate. If the flange bolts at the blind plate are rusted or damaged due to improper operation, dangerous hot cutting may be required, further increasing the cost consumption.
[0003] The existing pipeline blind plugging device (such as the pipeline blind plugging device disclosed in application number 202321233410.1) is suitable for blind plugging the connection between two connecting pipelines, and its purpose is to control the circulation and blocking of the fluid in the pipeline. When the above-mentioned pipeline blind plugging device is used to blindly plug the end of the pipeline, the structure is too complicated, which increases the blind plugging cost, and also does not have the function of nitrogen replacement. Utility Model Content
[0004] The purpose of the utility model is to overcome the above technical deficiencies and propose a pipeline blind plugging device to solve the technical problems that the pipeline blind plugging device in the prior art has an overly complex structure when blind plugging the end of the pipeline, increases the blind plugging cost, and also does not have the function of nitrogen replacement.
[0005] In order to achieve the above technical purpose, the technical solution of the utility model provides a pipeline blind plugging device, including:
[0006] at least one connecting rod;
[0007] A plugging mechanism, comprising two sealing plates and a sealing member, wherein the two sealing plates are slidably sleeved on each of the connecting rods and are used to slide against the inner wall of the pipeline, and the sealing member has a deformable structure and is arranged between the two sealing plates;
[0008] At least one adjusting member, connected to each of the connecting rods one by one, and used for adjusting the distance between the two sealing plates so that the two sealing plates squeeze the sealing member and the sealing member presses against the inner wall of the pipeline;
[0009] The replacement tube passes through the two sealing plates.
[0010] Furthermore, each of the connecting rods is arranged in parallel and encloses a polygonal structure.
[0011] Furthermore, at least one through hole is formed on each of the two sealing plates, and the two sealing plates are slidably sleeved on the corresponding connecting rods through the through holes.
[0012] Furthermore, the diameters of the two sealing plates are equal to the diameter of the pipeline.
[0013] Furthermore, edges of the two sealing plates on the sides close to each other are each provided with a step of a closed structure, and the two steps enclose a receiving groove for placing the sealing member.
[0014] Furthermore, the sealing member is a sealing ring.
[0015] Furthermore, the connecting rod is a screw rod.
[0016] Furthermore, the adjusting member is a nut, which is threaded onto the screw rod and abuts against the outer sealing plate.
[0017] Furthermore, a replacement port is provided on both sealing plates, one end of the replacement tube is connected to and fixedly connected with the replacement port on the inner sealing plate, and the other end of the replacement tube slides through the replacement port on the outer sealing plate and is used to connect with the hose.
[0018] Furthermore, the pipeline blind plugging device also includes a handle, and the handle is fixed on the outer sealing plate.
[0019] Compared with the prior art, the beneficial effects of the utility model include: when in use, the blind plugging device is placed in the pipeline, and the distance between the two sealing plates can be adjusted by manipulating various adjusting parts, so that the two sealing plates squeeze the seal. Since the seal has a deformable structure, the seal is expanded and deformed outward by the squeezing force of the two sealing plates, and presses against the inner wall of the pipeline, thereby realizing the sealing function. Nitrogen replacement can be conveniently performed through the replacement pipe. The pipeline blind plugging device has a simple structure and can reduce the cost of blind plugging. In addition, when blind plugging is performed on the end of the pipeline, it also has the function of nitrogen replacement. Nitrogen can be selected to protect metals in high-temperature treatment, replace dangerous gases, or be directly used for sealing and plugging. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of a pipeline blind plugging device provided by the utility model;
[0021] In the figure: 100 - connecting rod, 200 - blocking mechanism, 210 - sealing plate, 211 - through hole, 212 - step, 213 - receiving groove, 214 - replacement port, 220 - sealing member, 300 - adjusting member, 400 - replacement tube, 500 - handle. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0023] The utility model provides a pipeline blind plugging device, the structure of which is as follows: Figure 1 As shown, it includes at least one connecting rod 100, a sealing mechanism 200, at least one adjusting member 300 and a replacement tube 400. The sealing mechanism 200 includes two sealing plates 210 and a sealing member 220. The two sealing plates 210 are slidably mounted on each of the connecting rods 100 and are used to slide against the inner wall of the pipeline. The sealing member 220 has a deformable structure and is arranged between the two sealing plates 210. Each of the adjusting members 300 is connected to each of the connecting rods 100 in a one-to-one manner, and is used to adjust the distance between the two sealing plates 210 so that the two sealing plates 210 squeeze the sealing member 220 and make the sealing member 220 press against the inner wall of the pipeline. The replacement tube 400 passes through the two sealing plates 210.
[0024] When in use, the blind plugging device is placed in the pipeline, and the distance between the two sealing plates 210 can be adjusted by manipulating each of the adjusting parts 300, so that the two sealing plates 210 squeeze the sealing member 220. Since the sealing member 220 has a deformable structure, the sealing member 220 is expanded and deformed outward by the squeezing force of the two sealing plates 210, and presses against the inner wall of the pipeline, thereby realizing the sealing function. Nitrogen replacement can be conveniently performed through the replacement tube 400. The pipeline blind plugging device has a simple structure and can reduce the cost of blind plugging. In addition, when blind plugging is performed on the end of the pipeline, it also has the function of nitrogen replacement. Nitrogen can be selected to protect metals in high-temperature treatment, replace hazardous gases, or directly use it for sealing and plugging.
[0025] As a preferred embodiment, please refer to Figure 1 The connecting rods 100 are arranged in parallel and enclosed in a polygonal structure so as to improve the stability of the sliding connection between the two sealing plates 210.
[0026] As a preferred embodiment, please refer to Figure 1 At least one through hole 211 is formed on each of the two sealing plates 210, and each of the through holes 211 is slidably mounted on the corresponding connecting rod 100 to achieve a sliding connection between the two sealing plates 210 and each of the connecting rods 100, and the movement of the two sealing plates 210 can be guided by each of the connecting rods 100.
[0027] As a preferred embodiment, please refer to Figure 1The diameter of the two sealing plates 210 is equal to the diameter of the pipeline, so that the two sealing plates 210 can blindly block a large area of the pipeline, and the sealing member 220 is used to re-seal the abutment between the inner sealing plate 210 and the pipeline to improve the sealing effect.
[0028] As a preferred embodiment, please refer to Figure 1 The edges of the two sealing plates 210 close to each other are each provided with a step 212 of a closed structure, and the two steps 212 enclose a receiving groove 213 for placing the sealing member 220. The receiving groove 213 is a U-shaped structure to reserve an installation position for the sealing member 220.
[0029] As a preferred embodiment, please refer to Figure 1 The edges of the two sealing plates 210 that are away from each other are arc-shaped structures to prevent the two sealing plates 210 from getting stuck during installation or removal.
[0030] As a preferred embodiment, please refer to Figure 1 The seal 220 is a sealing ring, which needs to be regularly inspected and maintained to prevent the sealing ring from being oxidized. The sealing ring needs to be stored in a dry, well-ventilated and light-proof environment. A humid environment may cause the sealing ring to get damp. Long-term exposure to sunlight will cause some elastic materials to harden or age, affecting their sealing ability. The sealing ring should be regularly inspected to ensure that there are no cracks, aging or other damage on its surface. If damage is found, it should be replaced immediately. These measures help ensure that the sealing ring maintains its performance and quality. Therefore, it is crucial to store the sealing ring correctly to ensure that it can effectively play its key role.
[0031] As a preferred embodiment, please refer to Figure 1 The connecting rod 100 is a screw rod, so that the adjusting member 300 is connected to the connecting rod 100, so that the adjusting member 300 has a fastened state fixed to the connecting rod 100 and a movable state that can slide along the length direction of the connecting rod 100.
[0032] As a preferred embodiment, please refer to Figure 1 The adjusting member 300 is a nut, which is threaded onto the screw and abuts against the outer sealing plate 210, and the inner sealing plate 210 abuts against the screw head at the end of the screw. By rotating the nut, the position of the nut can be adjusted, thereby adjusting the distance between the two sealing plates 210 and allowing the two sealing plates 210 to squeeze the sealing ring.
[0033] As a preferred embodiment, please refer to Figure 1A replacement port 214 is provided on each of the two sealing plates 210, one end of the replacement tube 400 is connected to and fixedly connected with the replacement port 214 on the inner sealing plate 210, and the other end of the replacement tube 400 slides through the replacement port 214 on the outer sealing plate 210 and is used to be connected to a hose. As the outer sealing plate 210 gradually approaches the inner sealing plate 210, the replacement tube 400 will slide through the replacement port 214 on the outer sealing plate 210, so as to facilitate nitrogen replacement through the replacement tube 400.
[0034] As a preferred embodiment, please refer to Figure 1 The pipeline blind plugging device also includes a handle 500, and the handle 500 is fixed on the outer sealing plate 210 to facilitate installation and uninstallation of the blind plugging device.
[0035] In order to better understand the present invention, the following Figure 1 The working principle of the technical solution of the utility model is described in detail:
[0036] When in use, the blind plugging device is placed in the pipeline, and the pipeline can be blind-plugged over a large area through the two sealing plates 210. The nut can be rotated to adjust the position of the nut, thereby adjusting the spacing between the two sealing plates 210, and allowing the two sealing plates 210 to squeeze the sealing ring. Since the sealing ring has a deformable structure, the sealing ring is expanded and deformed outward by the squeezing force of the two sealing plates 210, and presses against the inner wall of the pipeline. The sealing ring re-seals the abutment between the inner sealing plate 210 and the pipeline to improve the sealing effect. Nitrogen replacement can be conveniently performed through the replacement pipe 400. The pipeline blind plugging device has a simple structure and can reduce the cost of blind plugging. In addition, when blind plugging is performed on the end of the pipeline, it also has the function of nitrogen replacement. Nitrogen can be selected to protect metals in high-temperature treatment, replace dangerous gases, or directly use it for sealing and plugging.
[0037] The utility model provides a pipeline blind plugging device with the following beneficial effects:
[0038] (1) The two sealing plates 210 can be used to blindly block a large area of the pipeline. The nut can be rotated to adjust the position of the nut, thereby adjusting the distance between the two sealing plates 210 and allowing the two sealing plates 210 to squeeze the sealing ring. Since the sealing ring has a deformable structure, the sealing ring is expanded and deformed outward by the squeezing force of the two sealing plates 210 and pressed against the inner wall of the pipeline. The sealing ring re-seals the abutment between the inner sealing plate 210 and the pipeline, thereby improving the sealing effect.
[0039] (2) As the outer sealing plate 210 gradually approaches the inner sealing plate 210, the replacement tube 400 will slide through the replacement port 214 on the outer sealing plate 210, so as to facilitate nitrogen replacement through the replacement tube 400;
[0040] (3) The pipeline blind plugging device has a simple structure and can reduce the blind plugging cost. In addition, when blind plugging the end of the pipeline, it also has the function of nitrogen replacement. Nitrogen can be introduced to protect metals in high-temperature treatment, replace dangerous gases, or be directly used for sealing.
[0041] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A pipeline blind plugging device, characterized in that: include: at least one connecting rod; A plugging mechanism, comprising two sealing plates and a sealing member, wherein the two sealing plates are slidably sleeved on each of the connecting rods and are used to slide against the inner wall of the pipeline, and the sealing member has a deformable structure and is arranged between the two sealing plates; At least one adjusting member, connected to each of the connecting rods one by one, and used for adjusting the distance between the two sealing plates so that the two sealing plates squeeze the sealing member and the sealing member presses against the inner wall of the pipeline; The replacement tube passes through the two sealing plates.
2. The pipeline blind plugging device according to claim 1, characterized in that: The connecting rods are arranged in parallel and enclosed to form a polygonal structure.
3. The pipeline blind plugging device according to claim 1, characterized in that: At least one through hole is formed on each of the two sealing plates, and the two sealing plates are slidably sleeved on the corresponding connecting rods through the respective through holes.
4. The pipeline blind plugging device according to claim 1, characterized in that: The diameters of the two sealing plates are equal to the diameter of the pipeline.
5. The pipeline blind plugging device according to claim 4, characterized in that: The edges of the two sealing plates on the sides close to each other are each provided with a step of a closed structure, and the two steps enclose a receiving groove for placing the sealing member.
6. The pipeline blind plugging device according to claim 5, characterized in that: The sealing member is a sealing ring.
7. The pipeline blind plugging device according to claim 1, characterized in that: The connecting rod is a screw rod.
8. The pipeline blind plugging device according to claim 7, characterized in that: The adjusting member is a nut, which is threaded onto the screw rod and abuts against the outer sealing plate.
9. The pipeline blind plugging device according to claim 1, characterized in that: A replacement port is provided on each of the two sealing plates, one end of the replacement tube is connected to and fixedly connected with the replacement port on the inner sealing plate, and the other end of the replacement tube slides through the replacement port on the outer sealing plate and is used to connect with the hose.
10. The pipeline blind plugging device according to claim 1, characterized in that: It also includes a handle, which is fixed on the outer sealing plate.