A feed sealing mechanism for a gas-liquid separator

Abstract

This utility model discloses a feeding and sealing mechanism for a gas-liquid separator, including a feeding pipe fixedly mounted on the side wall of the gas-liquid separator. One end of the feeding pipe is provided with a conveying pipe. A first flange and a second flange are respectively fixed at opposite ends of the feeding pipe and the conveying pipe. Multiple sets of mutually cooperating first bolts and nuts are provided between the first flange and the second flange. A rubber sealing ring is provided between the first flange and the second flange. This utility model utilizes the impact of the flowing gas-liquid mixture on the impeller inside the conveying pipe, which drives the rotating shaft and the symmetrically fixed cleaning mechanism to rotate synchronously. This ensures continuous contact with the connection points of the rubber sealing ring, the feeding pipe, and the conveying pipe, promptly cleaning solid impurities and residual debris in the medium. This prevents impurities from accumulating in the sealing gap and corroding the rubber sealing ring, effectively preventing aging, hardening, and cracking of the rubber sealing ring due to impurity corrosion, extending its service life, and reducing the frequency of sealing component replacement.

Description

Technical Field

[0001] This utility model relates to the field of gas-liquid separator technology, specifically to a feeding sealing mechanism for a gas-liquid separator. Background Technology

[0002] In industrial production processes, gas-liquid separators, as key equipment for separating gas and liquid two-phase media, are widely used in petrochemical, natural gas processing, environmental wastewater treatment and other fields. Their core function is to efficiently separate the gas phase and liquid phase in a mixed medium through gravity sedimentation, centrifugal separation or baffle collision, so as to meet the requirements of subsequent processes for medium purity or to achieve the recycling of the medium.

[0003] The feed inlet of a gas-liquid separator typically needs to be connected to an external conveying pipeline via a sealing mechanism to ensure that the gas-liquid mixture does not leak during transport and to prevent external environmental interference with the separator's internal operating conditions. Currently, the industry commonly uses flange connections to achieve a sealed connection between the feed pipe and the conveying pipe. Matching flanges are installed at the ends of the feed pipe and the conveying pipe, with a rubber gasket sandwiched between the two flanges. The two flanges are then fastened with bolts. The elastic deformation of the rubber gasket fills the microscopic gaps at the flange contact surfaces, thus achieving a seal. However, because it is difficult for the rubber gasket to achieve an absolute fit with the adjacent flange contact surfaces, the actual assembled rubber gasket and flange... Inevitably, tiny gaps will form between the flanges. When the gas-liquid mixture flows through this connection, solid impurities (such as rust chips falling off the inner wall of the pipe and particulate pollutants generated during the process) and corrosive components (such as sulfur-containing gases and acid / alkali mists) contained in the medium will penetrate into the surface and edges of the rubber gasket through these gaps. As the operating time increases, the impurities that have penetrated the gaps will gradually accumulate and continuously erode the rubber gasket, causing the gasket to age, harden, crack, or swell. Ultimately, this will lead to a significant decrease in the sealing effect and even media leakage, which will not only affect the separation efficiency of the gas-liquid separator but may also cause safety hazards and environmental pollution risks.

[0004] Therefore, a feed sealing mechanism for a gas-liquid separator is proposed. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a feeding sealing mechanism for a gas-liquid separator to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution.

[0007] This utility model provides a feeding sealing mechanism for a gas-liquid separator, including a feeding pipe fixedly disposed on the side wall of the gas-liquid separator, a conveying pipe at one end of the feeding pipe, a first flange and a second flange fixedly disposed at opposite ends of the feeding pipe and the conveying pipe, a plurality of sets of mutually cooperating first bolts and nuts being disposed between the first flange and the second flange, and a rubber sealing ring being disposed between the first flange and the second flange.

[0008] The conveying pipe has a rotating shaft inside and rotatable along its length. One end of the rotating shaft is fixedly equipped with an impeller, and the other end of the rotating shaft is symmetrically equipped with two cleaning mechanisms. The cleaning ends of the two cleaning mechanisms are in contact with the connection between the rubber sealing ring, the feed pipe and the conveying pipe.

[0009] Preferably, the rubber sealing ring is fixedly embedded in the side wall of the first flange, and the side wall of the second flange is provided with a sealing groove that seals with the rubber sealing ring.

[0010] Preferably, a support is fixedly provided inside the conveying pipe, and the shaft wall is rotatably connected to the middle part of the support.

[0011] Preferably, the cleaning mechanism includes a fixed rod fixedly mounted on the shaft wall of the rotating shaft, and a cleaning plate is detachably mounted on one end of the fixed rod away from the rotating shaft. The surface of the cleaning plate is fixedly mounted with cleaning brushes that are in contact with the connection points of the rubber sealing ring, the feed pipe and the conveying pipe.

[0012] Preferably, a mounting plate is fixedly provided at the end of the fixing rod away from the rotating shaft, and a second bolt is provided on both sides of the mounting plate. The mounting plate is fitted to the cleaning plate and fixedly connected by the second bolts on both sides.

[0013] Preferably, the cleaning brush uses polytetrafluoroethylene bristles.

[0014] Preferably, the inner wall of the feed pipe is provided with an annular guide groove, and the side of the annular guide groove away from the first flange has a large diameter.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The impeller inside the conveying pipe rotates with the flow of the medium, driving the rotating shaft and the cleaning mechanisms on both sides to operate synchronously. The PTFE cleaning brushes on the surface of the cleaning plate in the cleaning mechanism can continuously contact the connection between the rubber seal and the feed pipe and the conveying pipe, promptly cleaning solid impurities and residual debris in the medium. This prevents impurities from accumulating in the sealing gap and corroding the rubber seal, avoiding problems such as aging, hardening, and cracking, significantly extending the service life of the rubber seal and reducing the replacement frequency. At the same time, the cleaning plate in the cleaning mechanism is detachably connected to the second bolt via the mounting plate. When the cleaning brushes become worn, the first flange and the second flange are separated first, and then the second bolt is loosened to replace the cleaning plate and the cleaning brushes on its surface, improving the cleaning effect on the rubber seal. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-person perspective;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective;

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention after it has been cut open;

[0020] Figure 4 This is a three-dimensional structural diagram of the cleaning mechanism of this utility model.

[0021] In the diagram: 1. Feed pipe; 2. Conveying pipe; 3. First flange; 4. Second flange; 5. First bolt; 6. Nut; 7. Rubber sealing ring; 8. Rotating shaft; 9. Impeller; 10. Cleaning mechanism; 101. Fixing rod; 102. Cleaning plate; 103. Cleaning brush; 104. Mounting plate; 105. Second bolt; 11. Bracket; 12. Annular guide channel. Detailed Implementation

[0022] A feed sealing mechanism for a gas-liquid separator, such as Figure 1-4 As shown, the device includes a feed pipe 1 fixedly mounted on the side wall of the gas-liquid separator. One end of the feed pipe 1 is provided with a conveying pipe 2. The opposite ends of the feed pipe 1 and the conveying pipe 2 are respectively fixed with a first flange 3 and a second flange 4. Multiple sets of first bolts 5 and nuts 6 that cooperate with each other are provided between the first flange 3 and the second flange 4. A rubber sealing ring 7 is provided between the first flange 3 and the second flange 4. The rubber sealing ring 7 is fixedly embedded in the side wall of the first flange 3. The side wall of the second flange 4 is provided with a sealing groove that seals with the rubber sealing ring 7. This not only ensures the sealing of the connection between the first flange 3 and the second flange 4, but also ensures the separation of the first flange 3 and the second flange 4. The rubber sealing ring 7 can fill the gap between the contact surfaces of the first flange 3 and the second flange 4, thereby achieving a seal at the connection between the feed pipe 1 and the conveying pipe 2 and preventing leakage of the gas-liquid mixture.

[0023] A rotating shaft 8 is provided inside the conveying pipe 2 and rotatably along its length. A support 11 is fixedly provided inside the conveying pipe 2. The shaft wall of the rotating shaft 8 is rotatably connected to the middle of the support 11 to achieve stable rotational support. An impeller 9 is fixedly provided at one end of the rotating shaft 8, and two cleaning mechanisms 10 are symmetrically fixed at the other end of the rotating shaft 8. The cleaning ends of the two cleaning mechanisms 10 are in contact with the connection points of the rubber sealing ring 7, the feed pipe 1, and the conveying pipe 2. The cleaning mechanism 10 includes a fixing rod 101 fixedly provided on the shaft wall of the rotating shaft 8. A cleaning plate 102 is detachably provided at the end of the fixing rod 101 away from the rotating shaft 8. The surface of the cleaning plate 102 is fixedly provided with cleaning plates that are in contact with the connection points of the rubber sealing ring 7, the feed pipe 1, and the conveying pipe 2. The cleaning brush 103 is made of polytetrafluoroethylene (PTFE) bristles. PTFE has excellent chemical stability, reacts almost no with any chemicals, and has a low coefficient of friction, so it will not leave fiber debris to contaminate the sealing surface during cleaning. The fixed rod 101 is fixed with a mounting plate 104 at the end away from the rotating shaft 8. The mounting plate 104 has second bolts 105 on both sides. The mounting plate 104 is fitted to the cleaning plate 102 and fixedly connected by the second bolts 105 on both sides. When the cleaning brush 103 needs to be replaced, the operator can loosen the second bolts 105 with a wrench to separate the mounting plate 104 from the cleaning plate 102, so that the cleaning plate 102 and the cleaning brush 103 on the surface can be replaced together.

[0024] The inner wall of the feed pipe 1 is provided with an annular guide groove 12, and the side of the annular guide groove 12 away from the first flange 3 has a large diameter, which can guide the gas-liquid mixed medium to flow smoothly into the separator and avoid liquid accumulation at the bottom of the feed pipe 1.

[0025] In summary: During use, the feed pipe 1 and the conveying pipe 2, which are fixed to the side wall of the gas-liquid separator, are first connected through the first flange 3 and the second flange 4. The rubber sealing ring 7 is fixedly embedded in the side wall of the first flange 3 and seals with the sealing groove of the side wall of the second flange 4. Then, multiple sets of first bolts 5 and nuts 6 are used to tighten the two flanges. The elastic deformation of the rubber sealing ring 7 fills the gap between the contact surfaces of the first flange 3 and the second flange 4, thus initially achieving the seal at the connection between the feed pipe 1 and the conveying pipe 2 and preventing leakage of the gas-liquid mixture.

[0026] When the gas-liquid mixture flows into the conveying pipe 2, it impacts the impeller 9 inside the conveying pipe 2, causing the impeller 9 to rotate. The impeller 9 drives the rotating shaft 8 fixed to it to rotate synchronously (the rotating shaft 8 is stably supported by the bracket 11 fixed inside the conveying pipe 2). Two cleaning mechanisms 10 are symmetrically fixed at the end of the rotating shaft 8 away from the impeller 9, and they rotate together with the rotating shaft 8.

[0027] When the cleaning mechanism 10 rotates, the fixed rod 101 rotates with the rotating shaft 8, driving the detachably connected cleaning plate 102 and the cleaning brush 103 on the surface to move synchronously (the cleaning plate 102 is fixed to the fixed rod 101 by the mounting plate 104 and the second bolts 105 on both sides). The cleaning brush 103 continuously contacts the connection between the rubber sealing ring 7, the feed pipe 1 and the conveying pipe 2, and cleans the impurities (such as solid particles and residual debris in the medium) in this part, avoiding the accumulation of impurities that corrode the rubber sealing ring 7, extending the service life of the rubber sealing ring 7 and improving the sealing effect.

[0028] Meanwhile, the annular guide groove 12 on the inner wall of the feed pipe 1 can guide the gas-liquid mixed medium to flow smoothly into the separator, avoiding liquid accumulation at the bottom of the feed pipe 1.

[0029] In addition, the cleaning brush 103 is made of polytetrafluoroethylene bristles, which can effectively clean impurities without scratching the sealing components. The detachable design of the cleaning plate 102 also facilitates subsequent replacement, ensuring long-term cleaning effect and maintaining the stable performance of the sealing mechanism.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A feeding sealing mechanism for a gas-liquid separator, comprising a feeding pipe (1) fixedly disposed on the side wall of the gas-liquid separator, wherein one end of the feeding pipe (1) is provided with a conveying pipe (2), characterized in that: The feed pipe (1) and the conveying pipe (2) are respectively fixed with a first flange (3) and a second flange (4) at opposite ends. Multiple sets of first bolts (5) and nuts (6) are provided between the first flange (3) and the second flange (4). A rubber sealing ring (7) is provided between the first flange (3) and the second flange (4). The conveying pipe (2) has a rotating shaft (8) inside and rotatable along its length. One end of the rotating shaft (8) is fixedly provided with an impeller (9), and the other end of the rotating shaft (8) is symmetrically fixed with two cleaning mechanisms (10). The cleaning ends of the two cleaning mechanisms (10) are in contact with the connection between the rubber sealing ring (7), the feed pipe (1) and the conveying pipe (2).

2. The feed sealing mechanism for a gas-liquid separator according to claim 1, characterized in that: The rubber sealing ring (7) is fixedly embedded on the side wall of the first flange (3), and the side wall of the second flange (4) is provided with a sealing groove that seals with the rubber sealing ring (7).

3. The feed sealing mechanism for a gas-liquid separator according to claim 1, characterized in that: The conveying pipe (2) is fixedly provided with a bracket (11), and the shaft wall of the rotating shaft (8) is rotatably connected to the middle part of the bracket (11).

4. The feed sealing mechanism for a gas-liquid separator according to claim 1, characterized in that: The cleaning mechanism (10) includes a fixed rod (101) fixedly installed on the shaft wall of the rotating shaft (8). A cleaning plate (102) is detachably provided at one end of the fixed rod (101) away from the rotating shaft (8). A cleaning brush (103) is fixedly provided on the surface of the cleaning plate (102) and is in contact with the connection of the rubber sealing ring (7), the feed pipe (1) and the conveying pipe (2).

5. The feed sealing mechanism for a gas-liquid separator according to claim 4, characterized in that: The fixed rod (101) is fixedly provided with a mounting plate (104) at one end away from the rotating shaft (8). The mounting plate (104) is provided with second bolts (105) on both sides. The mounting plate (104) is fitted to the cleaning plate (102) and fixedly connected by the second bolts (105) on both sides.

6. The feed sealing mechanism for a gas-liquid separator according to claim 4, characterized in that: The cleaning brush (103) is made of polytetrafluoroethylene bristles.

7. The feed sealing mechanism for a gas-liquid separator according to claim 1, characterized in that: The inner wall of the feed pipe (1) is provided with an annular guide groove (12), and the side of the annular guide groove (12) away from the first flange (3) has a large diameter.

Images