Filterable valve body for petrochemical industry

Abstract

The filterable petrochemical engineering valve body comprises a first valve body and a second valve body, a filtering pipeline is arranged between the first valve body and the second valve body, the two ends of the filtering pipeline are fixedly connected with second flange plates, the lower side of the filtering pipeline is fixedly connected with a collecting pipeline, and the outer wall of the collecting pipeline is fixedly connected with an oil discharging pipe; a sliding groove is formed in the end, close to the first valve body, of the interior of the filtering pipeline, a filtering mechanism is slidably connected into the sliding groove and comprises a conical pipe, a positioning ring is fixedly connected to one end of the conical pipe, a filtering net disc is fixedly connected to the other end of the conical pipe, and a filtering net is fixedly connected into the filtering net disc. A first opening and a second opening are formed in the lower side of the conical pipe, the second opening is located in the lower side of the filter screen, and the rear end of the collecting pipeline is located in the filter pipeline. By means of the structure, the problems that a traditional valve body for the petrochemical industry is mainly used for controlling circulation of fluid, but the filtering capacity for impurities in the fluid is limited are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of petroleum chemical industry, especially to a filterable valve body for petroleum chemical industry. BACKGROUND

[0002] In the petroleum chemical industry, fluid media often contain various impurities such as particulate matter and precipitates. If these impurities enter the subsequent equipment and piping system, they may cause equipment wear and blockage, affecting production efficiency and even causing safety accidents.

[0003] The main function of the traditional valve body for petroleum chemical industry is to control the flow of fluid, but its filtering capacity for impurities in the fluid is limited. Therefore, a filterable valve body for petroleum chemical industry is proposed. SUMMARY

[0004] The utility model discloses a filterable valve body for petroleum chemical industry, which solves the problem of the traditional valve body for petroleum chemical industry, which mainly controls the flow of fluid but has limited filtering capacity for impurities in the fluid.

[0005] To achieve the above-mentioned purpose, a filterable valve body for petroleum chemical industry is provided, which comprises a first valve body and a second valve body. A filter pipeline is arranged between the first valve body and the second valve body. A second flange plate is fixedly connected to both ends of the filter pipeline, and a collection pipeline is fixedly connected to the lower side. An oil drain pipe is fixedly connected to the outer wall of the collection pipeline.

[0006] An end of the filter pipeline close to the first valve body is provided with a sliding groove. A filter mechanism is slidably connected in the sliding groove. The filter mechanism comprises a conical pipe. A positioning ring is fixedly connected to one end of the conical pipe, and a filter screen is fixedly connected to the other end. A filter screen is fixedly connected in the filter screen. A first opening and a second opening are arranged on the lower side of the conical pipe. The second opening is located below the filter screen. The rear end of the collection pipeline is located in the filter pipeline.

[0007] According to the filterable valve body for petroleum chemical industry, the first valve body and the second valve body are of the same size and model. The first valve body comprises a main body. First flange plates are fixedly connected to both ends of the main body. Metal rings and rubber rings are arranged in the first flange plates on both sides.

[0008] According to the filterable valve body for petroleum chemical industry, a ball valve is arranged in the first flange plate. A sealing mechanism is arranged on the upper side of the main body above the ball valve. The sealing mechanism comprises a fixed ring. A third flange is arranged on the upper side of the fixed ring. A first sealing ring is arranged between the fixed ring and the third flange. A fixed seat and a sealing block are arranged above the third flange. A rotating shaft is arranged between the fixed seat and the sealing block. The lower end of the rotating shaft is clamped with the ball valve.

[0009] The fixed ring and the third flange are fixedly connected through bolts, and the fixed seat is welded on the third flange.

[0010] The sealing block is connected on the fixed seat through bolts, and the lower side is provided with a second sealing ring.

[0011] The first opening and the second opening are of the same size.

[0012] The first valve body is an inlet valve, and the second valve body is an outlet valve.

[0013] The collecting pipeline and the oil discharge pipeline are both provided with sealing covers at the lower ends.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] 1. Compared with the prior art, the filter pipeline is arranged between the first valve body and the second valve body, and the collecting pipeline and the oil discharge pipeline are arranged at the lower side of the pipeline.

[0016] 2. Compared with the prior art, the filter mechanism is arranged in the filter pipeline, and under the action of the filter mechanism, the impurities in the petroleum chemical fluid can be intercepted and filtered by the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings and examples.

[0018] Figure 1 It is a structure diagram of the utility model of a filterable petroleum chemical valve body.

[0019] Figure 2 It is a filter pipeline structure diagram of the utility model of a filterable petroleum chemical valve body.

[0020] Figure 3 It is a valve body section view of the utility model of a filterable petroleum chemical valve body.

[0021] Figure 4 It is a filter mechanism structure diagram of the utility model of a filterable petroleum chemical valve body.

[0022] Legend:

[0023] 1, the first valve body; 2, the second valve body; 3, the filter pipeline; 31, the chute; 32, the second flange; 4, the filtering mechanism; 41, the tapered tube; 42, the positioning ring; 43, the filter screen disc; 44, the first opening; 45, the second opening; 46, the filter screen; 5, the collection pipeline; 6, the oil discharge pipe; 7, the main body; 71, the first flange; 72, the metal ring; 73, the rubber ring; 8, the ball valve; 9, the sealing mechanism; 91, the fixed ring; 92, the third flange; 93, the fixed seat; 94, the sealing block; 95, the second sealing ring; 96, the second sealing ring; 97, the rotating shaft. DETAILED DESCRIPTION

[0024] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0025] Reference Figures 1-4 , the utility model discloses a kind of filterable valve bodies for petroleum chemical industry, it includes first valve body 1 and second valve body 2, first valve body 1 is import valve, second valve body 2 is export valve, pass through first valve body 1 for controlling the flow and pressure of petroleum chemical fluid entering valve body, pass through second valve body 2 for adjusting the flow and pressure of filtered fluid flowing out of valve body, filter pipeline 3 is equipped between first valve body 1 and second valve body 2, second flange 32 is fixedly connected at both ends of filter pipeline 3, and lower side is fixedly connected with collection pipeline 5, through second flange 32, filter pipeline 3 can be installed between two side valve bodies, oil discharge pipe 6 is fixedly connected on the outer wall of collection pipeline 5, filter screen is equipped at the pipe opening of oil discharge pipe 6, collection pipeline 5 and oil discharge pipe 6 lower end are all screw threadedly connected with sealing cover, when cleaning, close first valve body 1 and second valve body 2, first open oil discharge pipe 6, then discharge petroleum chemical fluid in collection pipeline 5, then open collection pipeline 5, and impurities are cleaned, convenient operation, convenient for later maintenance;When maintaining, filter pipeline 3 can be individually detached from two side valve bodies;

[0026] The filter pipe 3 is provided with a sliding groove 31 near one end of the first valve body 1, and the filter mechanism 4 is slidably connected in the sliding groove 31. The filter mechanism 4 comprises a conical pipe 41, one end of which is fixedly connected with a positioning ring 42, and the other end is fixedly connected with a filter screen disc 43. The filter screen disc 43 is fixedly connected with a filter screen 46. The diameter of the positioning ring 42 is the same as the inner diameter of the sliding groove 31, and the diameter of the filter screen disc 43 is the same as the inner diameter of the filter pipe 3. A rubber protection ring is arranged between the positioning ring 42 and the sliding groove 31 in the filter pipe 3 to prevent the positioning ring 42 from colliding with the filter pipe 3.

[0027] The conical pipe 41 is provided with a first opening 44 and a second opening 45 on the lower side. The first opening 44 and the second opening 45 are the same size. The second opening 45 is located below the filter screen 46. The rear end of the collection pipe 5 is located in the filter pipe 3. As the filtration process proceeds, the impurities on the surface of the filter screen 46 fall into the collection pipe 5 from the second opening 45 under the action of gravity. The first opening 44 is used to collect the residual impurities in the backflow petroleum chemical fluid.

[0028] The first valve body 1 and the second valve body 2 are the same in size and model. The first valve body 1 comprises a main body 7, both ends of which are fixedly connected with first flange plates 71. Metal rings 72 and rubber rings 73 are arranged in the first flange plates 71 on both sides. A ball valve 8 is arranged in the first flange plate 71. A sealing mechanism 9 is arranged on the upper side of the ball valve 8. The sealing mechanism 9 comprises a fixed ring 91, the upper side of which is provided with a third flange 92. A first sealing ring 95 is arranged between the fixed ring 91 and the third flange 92. A fixed seat 93 and a sealing block 94 are arranged above the third flange 92. A rotating shaft 97 is arranged between the fixed seat 93 and the sealing block 94. The lower end of the rotating shaft 97 is clamped with the ball valve 8. The fixed ring 91 and the third flange 92 are fixedly connected by bolts. The fixed seat 93 is welded on the third flange 92. The sealing block 94 is connected to the fixed seat 93 by bolts, and the lower side is provided with a second sealing ring 96. The first valve body 1 and the second valve body 2 are Class 900 fixed ball valves.

[0029] Working principle: when in use, the filter pipe 3 is installed on both sides of the valve body through the second flange plate 32, and then the first valve body 1 and the second valve body 2 are installed on the petroleum pipeline.

[0030] When the petroleum chemical fluid enters the first valve body 1 from the inlet end, it is first adjusted by the valve of the first valve body 1 to control the flow and pressure of the fluid, and then the fluid enters the filter pipe 3. At this time, under the action of the filter mechanism 4 in the filter pipe 3, the impurities in the fluid are intercepted by the filter screen 46, and the filtered clean fluid continues to flow to the second valve body 2 through the filter screen 46, and finally flows out of the valve through the outlet valve.

[0031] With the filtration process, the impurities on the surface of the filter screen 46 fall into the collecting pipeline 5 from the second opening 45 under the action of gravity, and during cleaning, the first valve body 1 and the second valve body 2 are closed, the oil discharge pipe 6 is opened first, the petrochemical fluid in the collecting pipeline 5 is discharged, and then the collecting pipeline 5 is opened to clean the impurities, which is convenient to operate and convenient for later maintenance.

[0032] The embodiments of the utility model are explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A filterable petrochemical valve body characterized by, Including first valve body (1) and second valve body (2), the first valve body (1) and second valve body (2) are provided with filter pipeline (3), both ends of the filter pipeline (3) are fixedly connected with second flange plate (32), and the lower side is fixedly connected with collecting pipeline (5), the outer wall of the collecting pipeline (5) is fixedly connected with oil drain pipe (6); The end of the filter pipeline (3) close to the first valve body (1) is provided with a chute (31), the chute (31) is slidably connected with a filter mechanism (4), the filter mechanism (4) includes a conical tube (41), one end of the conical tube (41) is fixedly connected with a positioning ring (42), and the other end is fixedly connected with a filter screen disc (43), the filter screen disc (43) is fixedly connected with a filter screen (46), the lower side of the conical tube (41) is provided with a first opening (44) and a second opening (45), the second opening (45) is located below the filter screen (46), and the rear end of the collecting pipeline (5) is located in the filter pipeline (3).

2. A filterable valve body for use in petrochemical applications as claimed in claim 1, wherein The first valve body (1) and the second valve body (2) are the same in size and model, the first valve body (1) includes a main body (7), both ends of the main body (7) are fixedly connected with first flange plates (71), and both sides of the first flange plates (71) are provided with metal rings (72) and rubber rings (73).

3. A filterable valve body for use in the petrochemical industry according to claim 2, characterized in that The first flange plate (71) is provided with a ball valve (8), the main body (7) above the ball valve (8) is provided with a sealing mechanism (9), the sealing mechanism (9) includes a fixed ring (91), the upper side of the fixed ring (91) is provided with a third flange (92), the first sealing ring (95) is arranged between the fixed ring (91) and the third flange (92), the fixed seat (93) and the sealing block (94) are arranged above the third flange (92), the rotating shaft (97) is arranged between the fixed seat (93) and the sealing block (94), and the lower end of the rotating shaft (97) is clamped with the ball valve (8).

4. A filterable valve body for use in the petrochemical industry according to claim 3, characterized in that The fixed ring (91) and the third flange (92) are fixedly connected by bolts, and the fixed seat (93) is welded on the third flange (92).

5. A filterable valve body for use in the petrochemical industry according to claim 4, characterized in that The sealing block (94) is connected to the fixed seat (93) by bolts, and the lower side is provided with a second sealing ring (96).

6. A filterable valve body for use in the petrochemical industry according to claim 5, characterized in that The first opening (44) and the second opening (45) are the same size.

7. A filterable valve body for use in the petrochemical industry according to claim 6, characterized in that The first valve body (1) is an inlet valve, and the second valve body (2) is an outlet valve.

8. A filterable valve body for use in the petrochemical industry according to claim 7, characterized in that The lower end of the collecting pipeline (5) and the oil drain pipe (6) is threadedly connected with a sealing cover.

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