Sealing structure of oil-water separator for crude benzene treatment

Abstract

The utility model discloses a sealing structure of an oil-water separator for crude benzene treatment, which comprises an oil-water separator main body, casting glue sealing grooves are formed in the corners of the upper end of a fixing ring and the corners of the lower end of a sealing cover, a fixing block is mounted on the outer side of the lower end of the fixing ring in an attached manner, and fixing bolts are mounted on the inner walls of the fixing block and the fixing ring in a penetrating and inserting manner. A rotating shaft is installed on one side of the fixing block, a U-shaped clamping ring is installed on the other side of the rotating shaft in an overturning mode, and a threaded rod is installed at the upper end of the U-shaped clamping ring in a penetrating and inserting mode. According to the sealing structure of the oil-water separator for crude benzene treatment, stable threaded installation can be achieved through the threaded installation ring and the threaded installation groove, buckling sealing can be achieved through the sealing buckling groove and the sealing buckling ring, casting glue filling sealing can be achieved through the casting glue sealing groove, clamping sealing can be achieved through the U-shaped clamping ring and the threaded rod, triple sealing is achieved, and the sealing effect is good. And in addition, the U-shaped clamping ring can be conveniently and independently disassembled, assembled and replaced through the fixing bolt and the fixing block.

Description

Technical Field

[0001] This utility model relates to the technical field of crude benzene oil-water separators, specifically a sealing structure for an oil-water separator used in crude benzene treatment. Background Technology

[0002] Crude benzene oil-water separators are indispensable equipment in the chemical industry. Their main function is to effectively separate the oil and water in crude benzene. The crude benzene taken from the top of the benzene stripping tower still contains a small amount of water after being condensed by the crude benzene distillation unit. After oil-water separation by the crude benzene control separator and the crude benzene oil-water separator, part of it flows back to the benzene stripping tower and part enters the crude benzene intermediate tank as a product.

[0003] An existing crude benzene oil-water separator (CN201721004378.4) can significantly reduce the water content in crude benzene, thereby reducing the heat consumption of the benzene removal tower, improving product quality and production efficiency, and reducing labor intensity. However, it has shortcomings. Damage to the sealing gasket between the top cover and the flange of the existing oil-water separator causes benzene leakage in the tank. The VOCs value detected by a portable gas detector reaches 50 mg / m³, posing a safety hazard, generating VOCs and causing environmental pollution, and making it unsafe to use. Therefore, a sealing structure for an oil-water separator for crude benzene treatment is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing structure for an oil-water separator for crude benzene treatment, so as to solve the problems mentioned in the background art, such as benzene leakage in the tank caused by damage to the sealing gasket between the top cover and the flange of the coalesced crude benzene oil-water separator, which poses safety hazards, generates VOCs and causes environmental pollution, and is unsafe to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for an oil-water separator used in crude benzene treatment, comprising an oil-water separator body, a fixing ring welded to the upper end of the outer wall of the oil-water separator body, and a sealing cover fitted onto the upper end of the oil-water separator body; a threaded mounting groove is provided on the upper end of the inner wall of the oil-water separator body, and a threaded mounting ring is rotatably inserted into the inner wall of the threaded mounting groove; the upper end of the threaded mounting ring is fixedly connected to the lower end of the sealing cover, and a sealing groove is provided on the lower edge of the sealing cover. A sealing buckle ring is inserted into the inner wall of the sealing buckle groove, and the lower end of the sealing buckle ring is fixedly connected to the upper end of the fixing ring. Casting adhesive sealing grooves are opened at the upper corner of the fixing ring and the lower corner of the sealing cover. A fixing block is attached to the outer side of the lower end of the fixing ring. A fixing bolt is inserted through the fixing block and the inner wall of the fixing ring. A rotating shaft is installed on one side of the fixing block. A U-shaped retaining ring is flipped and installed on the other side of the rotating shaft. A threaded rod is inserted through the upper end of the U-shaped retaining ring. A locking pressure block is fixedly connected to the lower end of the threaded rod.

[0006] Preferably, the sealing cover is installed in a rotating splice configuration with the oil-water separator body via a threaded mounting ring and a threaded mounting groove.

[0007] Preferably, the sealing cover is installed in a sealed manner with the fixing ring by a sealing buckle in the sealing buckle groove, and the outer wall of the sealing buckle has a protruding sealant structure.

[0008] Preferably, the sealing cap is connected to the fixing ring in a filling and sealing manner through a casting adhesive sealing groove, and the casting adhesive sealing groove has a mesh-like hollow structure.

[0009] Preferably, the sealing cover is locked and fixedly connected to the fixed ring on the U-shaped retaining ring by a threaded rod and a locking block, and the U-shaped retaining ring is flipped and connected to the U-shaped retaining ring by a rotating shaft.

[0010] Preferably, the U-shaped retaining ring and the fixing block are bolted to the fixing ring by fixing bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the sealing structure of the oil-water separator for crude benzene treatment can be stably installed by threaded mounting ring and threaded mounting groove, and can be sealed by sealing buckle groove and sealing buckle ring, and can be sealed by casting adhesive filling groove, and can be sealed by U-shaped retaining ring and threaded rod clamping, achieving triple sealing with excellent effect. Moreover, the U-shaped retaining ring is convenient to be independently disassembled and replaced by fixing bolts and fixing blocks. Attached Figure Description

[0012] Figure 1 This is a front view of the sealing structure of an oil-water separator for crude benzene treatment according to this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the sealing structure of an oil-water separator for crude benzene treatment according to the present invention;

[0014] Figure 3 This utility model relates to a sealing structure for an oil-water separator used in crude benzene treatment. Figure 2 Enlarged view of point A in the middle;

[0015] Figure 4 This utility model relates to a sealing structure for an oil-water separator used in crude benzene treatment. Figure 2 Enlarged view at point B in the middle;

[0016] Figure 5 This utility model relates to a sealing structure for an oil-water separator used in crude benzene treatment. Figure 2 Enlarged view at point C;

[0017] Figure 6 This utility model relates to a sealing structure for an oil-water separator used in crude benzene treatment. Figure 2 Enlarged view at point D;

[0018] Figure 7 This utility model relates to a sealing structure for an oil-water separator used in crude benzene treatment. Figure 2 Enlarged view of point E in the middle.

[0019] In the diagram: 1. Oil-water separator body, 2. Fixing ring, 3. Sealing cover, 4. U-shaped retaining ring, 5. Threaded rod, 6. Locking block, 7. Threaded mounting ring, 8. Threaded mounting groove, 9. Sealing groove, 10. Sealing ring, 11. Casting adhesive sealing groove, 12. Fixing bolt, 13. Rotating shaft, 14. Fixing block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-7 This utility model provides a technical solution: a sealing structure for an oil-water separator for crude benzene treatment, comprising an oil-water separator body 1, a fixing ring 2, a sealing cover 3, a U-shaped retaining ring 4, a threaded rod 5, a locking block 6, a threaded mounting ring 7, a threaded mounting groove 8, a sealing groove 9, a sealing ring 10, a casting adhesive sealing groove 11, a fixing bolt 12, a rotating shaft 13, and a fixing block 14. The fixing ring 2 is welded to the upper end of the outer wall of the oil-water separator body 1, and the sealing cover 3 is installed on the upper end of the oil-water separator body 1. The sealing cover 3 is installed in a rotating splice with the oil-water separator body 1 through the threaded mounting ring 7 and the threaded mounting groove 8, which makes the sealing cover 3 easy to install by thread splicing and stable installation.

[0022] The sealing cover 3 is installed in a sealed groove 9 within the sealing groove 9 by a sealing buckle 10, which is inserted into and sealed to the fixing ring 2. The outer wall of the sealing buckle 10 has a protruding sealant structure, which allows the sealing cover 3 to be snapped shut and sealed, resulting in a good sealing effect. The sealing cover 3 is connected to the fixing ring 2 in a filling and sealing manner through a casting adhesive sealing groove 11, which has a mesh-like hollow structure, allowing the sealing cover 3 to be filled and sealed with casting adhesive, thus strengthening the seal. The sealing cover 3 is locked and fixed to the fixing ring 2 on the U-shaped retaining ring 4 by a threaded rod 5 and a locking block 6. The U-shaped retaining ring 4 is connected to the fixing ring 2 by a rotating shaft 13, which allows the sealing cover 3 to be clamped and sealed by the U-shaped retaining ring 4, thus strengthening the sealing effect.

[0023] The upper end of the inner wall of the oil-water separator body 1 is provided with a threaded mounting groove 8, and a threaded mounting ring 7 is rotatably installed on the inner wall of the threaded mounting groove 8. The upper end of the threaded mounting ring 7 is fixedly connected to the lower end of the sealing cover 3. A sealing groove 9 is provided on the lower edge of the sealing cover 3, and a sealing ring 10 is installed on the inner wall of the sealing groove 9. The lower end of the sealing ring 10 is fixedly connected to the upper end of the fixing ring 2. Casting adhesive sealing grooves 11 are provided on the upper corner of the fixing ring 2 and the lower corner of the sealing cover 3, and the lower outer side of the fixing ring 2 is fitted with the sealing groove 11. The device is equipped with a fixing block 14. The fixing block 14 and the inner wall of the fixing ring 2 are fitted with fixing bolts 12. A rotating shaft 13 is installed on one side of the fixing block 14. A U-shaped retaining ring 4 is installed on the other side of the rotating shaft 13. A threaded rod 5 is fitted through the upper end of the U-shaped retaining ring 4. The U-shaped retaining ring 4 and the fixing block 14 are bolted to the fixing ring 2 by fixing bolts 12. This makes it easy to install and remove the U-shaped retaining ring 4 independently and to replace and maintain it. A locking pressure block 6 is fixedly connected to the lower end of the threaded rod 5.

[0024] Working principle: When using the sealing structure of this crude benzene treatment oil-water separator, the sealing cover 3 of the device is first installed by threaded mounting ring 7 and threaded mounting groove 8 to the oil-water separator body 1. The fixing ring 2 and the sealing cover 3 are then sealed by sealing groove 9 and sealing ring 10. Then, casting adhesive is filled into the casting adhesive sealing groove 11 for the second sealing. Next, the U-shaped retaining ring 4 is flipped upward by the rotating shaft 13 and fastened to the sealing cover 3. Then, the threaded rod 5 and locking block 6 are used to squeeze and lock for the third sealing. When the U-shaped retaining ring 4 is damaged, it can be independently disassembled and replaced by fixing bolt 12 and fixing block 14. This is the usage process of the sealing structure of the crude benzene treatment oil-water separator.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sealing structure for an oil-water separator used in crude benzene treatment, comprising an oil-water separator body (1), wherein a fixing ring (2) is welded to the upper end of the outer wall of the oil-water separator body (1), and a sealing cover (3) is installed on the upper end of the oil-water separator body (1), characterized in that: The upper end of the inner wall of the oil-water separator body (1) is provided with a threaded mounting groove (8), and a threaded mounting ring (7) is rotatably installed on the inner wall of the threaded mounting groove (8). The upper end of the threaded mounting ring (7) is fixedly connected to the lower end of the sealing cover (3), and a sealing buckle groove (9) is provided on the lower edge of the sealing cover (3). A sealing buckle ring (10) is installed on the inner wall of the sealing buckle groove (9), and the lower end of the sealing buckle ring (10) is fixedly connected to the upper end of the fixing ring (2). The upper corner of the fixing ring (2) and the sealing cover are fixedly connected to the sealing cover. (3) A casting adhesive sealing groove (11) is provided at the lower corner, and a fixing block (14) is attached to the outer side of the lower end of the fixing ring (2). A fixing bolt (12) is inserted through the fixing block (14) and the inner wall of the fixing ring (2). A rotating shaft (13) is installed on one side of the fixing block (14), and a U-shaped retaining ring (4) is installed on the other side of the rotating shaft (13). A threaded rod (5) is inserted through the upper end of the U-shaped retaining ring (4), and a locking pressure block (6) is fixedly connected to the lower end of the threaded rod (5).

2. The sealing structure of an oil-water separator for crude benzene treatment according to claim 1, characterized in that: The sealing cover (3) is installed in a rotating splice with the oil-water separator body (1) through a threaded mounting ring (7) and a threaded mounting groove (8).

3. The sealing structure of an oil-water separator for crude benzene treatment according to claim 2, characterized in that: The sealing cover (3) is installed in a sealed manner with the fixing ring (2) in the sealing groove (9) by the sealing buckle (10), and the outer wall of the sealing buckle (10) is a protruding sealant structure.

4. The sealing structure of an oil-water separator for crude benzene treatment according to claim 3, characterized in that: The sealing cover (3) is connected to the fixing ring (2) in a filling and sealing manner through the casting adhesive sealing groove (11), and the casting adhesive sealing groove (11) is a mesh hollow structure.

5. The sealing structure of an oil-water separator for crude benzene treatment according to claim 4, characterized in that: The sealing cover (3) is fastened and fixedly connected to the fixing ring (2) on the U-shaped retaining ring (4) by the threaded rod (5) and the locking block (6), and the U-shaped retaining ring (4) is flipped and connected to the U-shaped retaining ring (4) by the rotating shaft (13).

6. The sealing structure of an oil-water separator for crude benzene treatment according to claim 5, characterized in that: The U-shaped retaining ring (4) and the fixing block (14) are bolted to the fixing ring (2) by fixing bolts (12).

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