Device pressure gauge for detecting pressure in high-corrosion medium pipeline

Abstract

The utility model provides a device pressure gauge for detecting pressure in a high-corrosion medium pipeline, belongs to the technical field of pressure gauges, and solves the technical problem that the connection of the conventional diaphragm pressure gauge and the anti-corrosion treatment of a connecting section are poor. A device pressure gauge for detecting pressure in a high-corrosion medium pipeline comprises a three-way pipe, and the top end of the three-way pipe is fixedly connected with a fixed flange. According to the utility model, the pressure gauge body is arranged at the top of the three-way pipe, under the action of a conventional three-way structure, the three-way pipe is conveniently connected with medium pipelines with different sizes and specifications, the applicability is high, and the pressure gauge body is connected with the three-way pipe through the flange, so that the cost is reduced, and the maintenance is convenient; under the action that the two sides of the three-way pipe are connected with the anti-corrosion sealing units, the sealing performance and the anti-corrosion effect of connection of the three-way pipe and the connecting section are guaranteed, meanwhile, the three-way pipe and the plug block are integrally sprayed with anti-corrosion materials, the structure is simple, and it is guaranteed that the overall anti-corrosion performance of the pressure gauge is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure gauges, and relates to a pressure gauge for detecting the pressure in a pipeline with a highly corrosive medium, in particular to a device pressure gauge for detecting the pressure in a pipeline with a highly corrosive medium. Background Art

[0002] In the preparation of in vitro diagnostic reagents, there are often materials with high concentrations of chloride ions. The high ion content has a certain corrosive ability on austenitic stainless steel. Therefore, the anti-corrosion treatment of the pipeline pressure detection device during the preparation and transportation process is to spray the anti-corrosion material on the surface of the pressure gauge diaphragm. However, the disadvantage of spraying on the pressure gauge diaphragm is that the sprayed surface is easy to fall off and the price is expensive. Another pressure gauge structure is to purchase a corrosion-resistant PFA diaphragm for the diaphragm and use a flange to connect the diaphragm to the pressure gauge body. This is low-priced, has good corrosion resistance and a long service life.

[0003] A search revealed a highly practical, corrosion-resistant, high-pressure diaphragm pressure gauge disclosed in a Chinese patent document [Application Number: CN202122341507.1; Publication Number: CN215598597U]. This corrosion-resistant, high-pressure diaphragm pressure gauge includes a protective cover, a gauge head, and a connecting flange. A shock-absorbing tube is mounted in the middle of the top of the connecting flange. A sealing ring is mounted near the bottom of the shock-absorbing tube. A measuring tube is mounted on the top of the sealing ring. A piston is mounted inside the measuring tube. An isolation diaphragm is mounted on the top of the measuring tube. The gauge head is mounted on the top of the measuring tube via a connecting column. A spring tube is mounted inside the gauge head, and the end of the spring tube is connected to the top of the isolation diaphragm. A mounting bracket is mounted on the top of the connecting flange.

[0004] The diaphragm pressure gauge disclosed in this patent avoids corrosion of the isolation diaphragm by avoiding direct contact between the isolation diaphragm and the measured fluid, thereby improving the measurement accuracy of the pressure gauge. However, the pressure gauge can only be anti-corrosion treated internally. When the pressure gauge is installed, since the diaphragm pressure gauge requires an interface when connected to the medium pipeline, the components usually do not have an anti-corrosion effect, resulting in poor corrosion resistance at the connection of the pressure gauge, affecting the anti-corrosion stability of the pressure gauge and the connection section and the service life of the pressure gauge. Utility Model Content

[0005] The purpose of this utility model is to address the above-mentioned problems in the existing technology and propose a pressure gauge for detecting pressure in a highly corrosive medium pipeline. The technical problem to be solved by this utility model is: how to achieve the connection of a diaphragm pressure gauge and the anti-corrosion treatment of the connecting section.

[0006] The purpose of this utility model can be achieved through the following technical solutions:

[0007] A pressure gauge for detecting pressure in a highly corrosive medium pipeline comprises a tee pipe, the top end of which is fixedly connected to a fixing flange, the surface of which is fixedly connected to a connecting flange, the top of which is fixedly mounted to a pressure gauge body, and both sides of the outer wall of the tee pipe are sleeved with anti-corrosion sealing units, and the two anti-corrosion sealing units are adjusted by a synchronous locking unit;

[0008] The anti-corrosion sealing unit includes a slip ring, and the slip ring is slidably sleeved on the outer walls of both ends of the tee pipe. A fixed plate is fixedly installed on the outer wall of the slip ring, and a plug is fixedly connected to the outer side of the fixed plate. The plug is arranged in an outward wedge-shaped structure.

[0009] With the above structure, by setting the plugs in a wedge shape on both sides of the tee, the plugs can be filled between the outer wall of the tee and the inner wall of the connecting section when moving outward. Moreover, the wedge-shaped setting ensures the filling and sealing of the plug between the tee and the connecting section. At the same time, the anti-corrosion treatment of the tee and the anti-corrosion sealing unit ensures the anti-corrosion effect and installation convenience of the pressure gauge.

[0010] The outer walls on both sides of the three-way pipe are provided with slideways for accommodating the sliding of the slip ring.

[0011] With the above structure, under the action of the slideway, the slip ring can be driven by the synchronous locking unit to move stably on the surface of the tee pipe, ensuring the sliding effect of the slip ring and limiting the moving path of the slip ring. It also has a simple structure and low maintenance cost.

[0012] A gasket is placed between the fixing flange and the connecting flange, and the fixing flange and the connecting flange are fixedly installed by a plurality of bolts.

[0013] With the above structure, by arranging a gasket between the fixed flange and the connecting flange, the stability and convenience of the installation of the pressure gauge body are ensured, and the subsequent maintenance and inspection of the pressure gauge body are facilitated.

[0014] The synchronous locking unit includes a connecting block, and the connecting block is fixedly installed on the outer wall of the slip ring. A sliding shaft is fixedly installed inside the connecting block, and the outer wall of the sliding shaft is slidably connected to a moving groove, and the outer wall of the moving groove is fixedly installed with a movable plate.

[0015] With the above structure, a movable groove is opened inside the movable plate. Under the action of the sliding shaft inside the movable groove, the movable plate can pull the slip ring to move through the sliding shaft. Moreover, by connecting the movable plate to the slip rings on both sides, the movement of the movable plate can realize the synchronous adjustment of the slip rings on both sides, thereby improving the installation efficiency of the pressure gauge.

[0016] The end of the movable plate away from the sliding shaft is fixedly mounted with a mounting shaft, and the outer wall of the mounting shaft is rotatably connected with a mounting block, and two movable plates are symmetrically arranged on both sides of the mounting block about the central axis.

[0017] With the above structure, by setting the mounting shaft and the movable plate, the mounting block can drive the movable plate to move at different angles through the mounting shaft, so that the movable plate can drive the slip ring at the other end to slide on the outer wall of the tee pipe through the sliding shaft.

[0018] The internal thread of the mounting block is connected to a screw rod, and the end of the screw rod is rotatably connected to a fixing block;

[0019] A reinforcement ring is fixedly installed on the other side of the fixing block, and the reinforcement ring is fixedly sleeved on the three-way connection of the three-way pipe.

[0020] With the above structure, through the threaded connection between the screw and the mounting block, the user can drive the movable plates on both sides to adjust the angle by fixing the mounting block on the outer wall of the screw. Under the connection between the screw and the fixing block, the fixed connection between the screw and the reinforcement ring is facilitated, making it easier for the screw to drive the mounting block to remain stable on the outside of the tee pipe.

[0021] The interior of the three-way pipe and the surface of the plug are sprayed with anti-corrosion material as a whole.

[0022] With the above structure, the internal connection of the tee pipe is made of anti-corrosion material, so that the overall structure of the pressure gauge and the connecting section are connected with good corrosion resistance, which is conducive to extending the service life of the pressure gauge.

[0023] Compared with the prior art, the pressure gauge of the device for detecting pressure in a highly corrosive medium pipeline of the utility model has the following advantages:

[0024] 1. In the utility model, the pressure gauge body is installed on the top of the tee, and under the action of the conventional tee structure, it is convenient to connect with the medium pipelines of different sizes and specifications, and the applicability is improved. The pressure gauge body is connected to the tee through a flange, which reduces the cost and facilitates maintenance. In addition, under the action of the anti-corrosion sealing unit connected on both sides of the tee, the sealing and anti-corrosion effect of the connection between the tee and the connecting section are ensured. At the same time, the tee and the plug are sprayed with anti-corrosion material as a whole, the structure is simple, and the overall anti-corrosion performance of the pressure gauge is improved.

[0025] 2. In the present invention, anti-corrosion sealing units are provided on both sides of the tee pipe. When the two anti-corrosion sealing units are adjusted by the synchronous locking unit, the user can synchronously drive the movable plates on both sides to move synchronously through the mounting block. When the sliding shaft is connected to the movable plate through the movable groove inside the movable plate, the sliding shaft drives the plug block to adjust the distance through the slip ring, so that the plug blocks on both sides can synchronously seal and protect the outer wall of the tee pipe and the inner wall of the connecting section against corrosion, thereby ensuring the installation effect of the pressure gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model is a structural diagram of a pressure gauge of a device for detecting pressure in a highly corrosive medium pipeline.

[0027] Figure 2 It is a structural diagram of the synchronous locking unit in the utility model.

[0028] Figure 3 It is a side cross-sectional structural diagram of the anti-corrosion sealing unit in the utility model.

[0029] In the picture:

[0030] 1. Tee; 2. Fixed flange; 3. Connecting flange; 4. Bolt; 5. Pressure gauge body; 6. Washer; 7. Slip ring; 8. Fixed plate; 9. Plug; 10. Slide; 11. Connecting block; 12. Sliding shaft; 13. Moving groove; 14. Movable plate; 15. Mounting shaft; 16. Mounting block; 17. Screw; 18. Fixed block; 19. Reinforcement ring. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0032] Example

[0033] like Figure 1-Figure 3 As shown;

[0034] A pressure gauge for detecting pressure in a highly corrosive medium pipeline, comprising a tee pipe 1, a fixed flange 2, a connecting flange 3, a bolt 4, a pressure gauge body 5, a gasket 6, a slip ring 7, a fixed plate 8, a plug 9, a slide 10, a connecting block 11, a sliding shaft 12, a movable groove 13, a movable plate 14, a mounting shaft 15, a mounting block 16, a screw 17, a fixed block 18 and a reinforcement ring 19. The top of the tee pipe 1 is fixedly connected to the fixed flange 2, and the surface of the fixed flange 2 is fixedly connected to the connecting flange 3. The fixed flange 2 and the connecting method A gasket 6 is placed between the flanges 3. By arranging the gasket 6 between the fixed flange 2 and the connecting flange 3, the sealing of the connection between the pressure gauge body 5 and the tee pipe 1 is ensured, and the fixed flange 2 and the connecting flange 3 are fixedly installed by multiple bolts 4. At the same time, the pressure gauge body 5 is fixedly installed on the top of the connecting flange 3. Through such an arrangement, the stability and convenience of the installation of the pressure gauge body 5 are ensured, and the subsequent maintenance and inspection of the pressure gauge body 5 are facilitated. Anti-corrosion sealing units are provided on the outer walls of both sides of the tee pipe 1;

[0035] Furthermore, the anti-corrosion sealing unit includes a slip ring 7, and the slip ring 7 is slidably sleeved on the outer walls of both ends of the tee pipe 1. The outer walls of both sides of the tee pipe 1 are provided with slideways 10 that can accommodate the sliding of the slip ring 7. Under the action of the slideway 10, the slip ring 7 can be driven by the synchronous locking unit to move stably on the surface of the tee pipe 1, ensuring the sliding effect of the slip ring 7 and realizing the limitation of the moving path of the slip ring 7. The outer wall of the slip ring 7 is fixedly installed with a fixing plate 8, and the outer side of the fixing plate 8 is fixedly connected with a plug 9. The plug 9 is arranged in an outward wedge-shaped structure. By setting the plug blocks 9 in a wedge shape on both sides of the tee 1, the plug blocks 9 can be filled between the outer wall of the tee 1 and the inner wall of the connecting section when moving outward. Moreover, the wedge-shaped setting of the plug block 9 ensures the filling and sealing performance of the plug block 9 between the tee 1 and the connecting section, and the interior of the tee 1 and the surface of the plug block 9 are sprayed with anti-corrosion material as a whole, so that the overall structure of the pressure gauge has good corrosion resistance when connected to the connecting section, which is beneficial to extending the service life of the pressure gauge.

[0036] Taking into account the stable driving and adjustment of the two anti-corrosion sealing units on both sides, the two anti-corrosion sealing units are adjusted through a synchronous locking unit. Specifically, the synchronous locking unit includes a connecting block 11, and the connecting block 11 is fixedly installed on the outer wall of the slip ring 7. A sliding shaft 12 is fixedly installed inside the connecting block 11, and the outer wall of the sliding shaft 12 is slidably connected to a movable groove 13. A movable plate 14 is fixedly installed on the outer wall of the movable groove 13. An end of the movable plate 14 away from the sliding shaft 12 is fixedly installed with a mounting shaft 15, and the outer wall of the mounting shaft 15 is rotatably connected to a mounting block 16. Two movable plates 14 are symmetrically arranged on both sides of the mounting block 16 about the central axis. Through the arrangement of the mounting shaft 15 and the movable plate 14, the mounting block 16 can drive the movable plate 14 to move at different angles through the mounting shaft 15, so that the movable plate 14 can drive the slip ring 7 at the other end to move in the tee through the sliding shaft 12. The outer wall of the tube 1 slides, and under the action of the two movable plates 14, the movement of the mounting block 16 can synchronously drive the movable plates 14 on both sides to move, thereby realizing the synchronous adjustment of the slip rings 7 on both sides. In order to facilitate the user to operate the mounting block 16, a screw 17 is connected to the internal thread of the mounting block 16, and the end of the screw 17 is rotatably connected to the fixed block 18. A reinforcement ring 19 is fixedly installed on the other side of the fixed block 18, and the reinforcement ring 19 is fixedly sleeved on the tee connection of the tee pipe 1. Through the threaded connection of the screw 17 and the mounting block 16, the user can drive the movable plates 14 on both sides to adjust the angle through the mounting block 16 at the fixed position of the outer wall of the screw 17. Under the connection action of the screw 17 and the fixed block 18, the fixed connection between the screw 17 and the reinforcement ring 19 is facilitated, so that the screw 17 drives the mounting block 16 to remain stable on the outside of the tee pipe 1.

[0037] The working principle of the present invention is as follows: when in use, the fixing flange 2 and the connecting flange 3 are installed by means of the bolts 4, and a gasket 6 is provided between the fixing flange 2 and the connecting flange 3 to ensure the sealing performance of the connection between the fixing flange 2 and the connecting flange 3, thereby achieving the stable installation of the pressure gauge body 5. When the two ends of the tee pipe 1 are connected to the connecting section, the connecting section is sleeved on the outer wall of the plug 9, and the screw 17 is rotated to facilitate the adjustment of the position of the mounting block 16 on the outer wall of the screw 17, and the other end of the screw 17 is connected to the fixing block 18, and the fixed length of the movable plate 14 is achieved. Under, the movable plate 14 drives the sliding shaft 12 to move through the movable groove 13, so that the slip rings 7 on both sides move on the surface of the slide 10, and the plug 9 moves outward, so that the plug 9 is filled between the outer wall of the tee 1 and the inner wall of the connecting section. Moreover, the wedge-shaped setting of the plug 9 ensures the filling and sealing performance of the plug 9 between the tee 1 and the connecting section. At the same time, the anti-corrosion treatment of the tee 1 and the anti-corrosion sealing unit ensures the anti-corrosion effect and installation convenience of the pressure gauge, thus completing the working principle of the pressure gauge of the device.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A pressure gauge for detecting pressure in a highly corrosive medium pipeline, comprising a tee pipe (1), characterized in that: The top end of the three-way pipe (1) is fixedly connected to a fixed flange (2), and the surface of the fixed flange (2) is fixedly connected to a connecting flange (3), and a pressure gauge body (5) is fixedly installed on the top of the connecting flange (3). The outer walls of both sides of the three-way pipe (1) are both sleeved with anti-corrosion sealing units, and the two anti-corrosion sealing units are adjusted by a synchronous locking unit; The anti-corrosion sealing unit includes a slip ring (7), and the slip ring (7) is slidably sleeved on the outer walls of both ends of the tee pipe (1), the outer wall of the slip ring (7) is fixedly mounted with a fixing plate (8), and the outer side of the fixing plate (8) is fixedly connected with a plug (9), and the plug (9) is arranged in an outward wedge-shaped structure.

2. A pressure gauge for detecting pressure in a highly corrosive medium pipeline according to claim 1, characterized in that: The outer walls on both sides of the three-way pipe (1) are provided with slideways (10) capable of accommodating the sliding of the slip ring (7).

3. The pressure gauge for detecting pressure in a highly corrosive medium pipeline according to claim 1, characterized in that: A gasket (6) is placed between the fixed flange (2) and the connecting flange (3), and the fixed flange (2) and the connecting flange (3) are fixedly mounted by a plurality of bolts (4).

4. The pressure gauge for detecting pressure in a highly corrosive medium pipeline according to claim 1, characterized in that: The synchronous locking unit includes a connecting block (11), and the connecting block (11) is fixedly installed on the outer wall of the slip ring (7); a sliding shaft (12) is fixedly installed inside the connecting block (11), and the outer wall of the sliding shaft (12) is slidably connected to a movable groove (13), and the outer wall of the movable groove (13) is fixedly installed with a movable plate (14).

5. The pressure gauge for detecting pressure in a highly corrosive medium pipeline according to claim 4, characterized in that: The movable plate (14) is fixedly mounted with a mounting shaft (15) at one end away from the sliding shaft (12), and the outer wall of the mounting shaft (15) is rotatably connected with a mounting block (16), and two movable plates (14) are symmetrically arranged on both sides of the mounting block (16) about the central axis.

6. A pressure gauge for detecting pressure in a highly corrosive medium pipeline according to claim 5, characterized in that: The internal thread of the mounting block (16) is connected to a screw rod (17), and the end of the screw rod (17) is rotatably connected to a fixing block (18); A reinforcement ring (19) is fixedly mounted on the other side of the fixing block (18), and the reinforcement ring (19) is fixedly sleeved on the three-way connection of the three-way pipe (1).

7. The pressure gauge for detecting pressure in a highly corrosive medium pipeline according to claim 1, characterized in that: The interior of the three-way pipe (1) and the surface of the plug (9) are sprayed with anti-corrosion material as a whole.

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