Valve seat for deep sea oil extraction equipment

Abstract

The utility model relates to the technical field of deep sea oil extraction equipment, and discloses a valve seat for deep sea oil extraction equipment, which comprises a valve body, the valve body comprises a shell, an oil inlet pipe is arranged on one side of the shell, an oil outlet pipe is arranged on one side of the shell, a valve cavity is arranged in the shell, and a valve core is arranged in the valve cavity. The inner surface of the valve cavity is attached to the outer surface of the valve element, a connecting block is installed on the upper surface of the valve element, a valve rod is installed on the upper surface of the connecting block, the upper end of the valve rod penetrates through the inner surface of the sealing plate to be attached to one side of the rotating handle, and a groove is formed in the upper end of the shell. The filtering structure is installed on one side of the oil inlet pipe, impurities in oil can be blocked and then concentrated in the fixing frame, and when the impurities are concentrated to a certain degree, only the filtering structure needs to be taken out to be cleaned, so that abrasion of the impurities to the inner wall of the valve cavity is avoided, and the service life is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of deep - sea oil production equipment, and particularly relates to a valve seat for deep - sea oil production equipment. Background Technique

[0002] Plug valves are widely used in oil - field exploitation, transportation and refining equipment, petrochemical industry, gas, natural gas, liquefied petroleum gas, heating and ventilation industries and general industries. Secondly, plug valves are also suitable for transporting liquids containing suspended solids and particles.

[0003] The utility model patent application document with the publication number of "CN205315756U" discloses a high - pressure low - torque wear - resistant drilling plug valve that can be switched by one person, which mainly consists of a plug - valve body, an upper valve seat, a lower valve seat, a valve core, a valve rod and a positioning block. This technical solution has the advantage of high corner accuracy and solves the problem that most of the existing drilling plug valves can only open and close the plug valve at a low pressure of 8 MPa. The product cannot meet the working conditions of modern drilling. For many users, installing it as a kelly cock safety valve on the drill string is almost just for show. Once a blowout occurs and the ball valve cannot be closed, it will bring catastrophic consequences.

[0004] The wear - resistant drilling plug valve disclosed in the above document has the following defects: After the wear - resistant drilling plug valve has been used for a period of time, impurities in the oil liquid are easily accumulated in the valve cavity inside the plug valve, and the oil liquid cannot be filtered. Since there is no filtering structure inside the wear - resistant drilling plug valve, the process of cleaning the valve cavity is rather troublesome.

[0005] It can be seen from this that the existing wear - resistant drilling plug valve does not have a structure that is convenient for replacing oil - liquid filtration, and it is necessary to improve the existing deficiencies and provide a valve seat for deep - sea oil production equipment. Content of the Utility Model

[0006] To solve the above - mentioned technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to a valve seat for deep - sea oil production equipment, which comprises a valve body. The valve body includes a housing. An oil inlet pipe is installed on one side of the housing, and an oil outlet pipe is installed on one side of the housing. A valve cavity is arranged inside the housing. A valve core is installed inside the valve cavity. The inner surface of the valve cavity fits with the outer surface of the valve core. A connecting block is installed on the upper surface of the valve core, and a valve rod is installed on the upper surface of the connecting block. The upper end of the valve rod penetrates through the inner surface of the sealing plate until it fits with one side of a rotary handle. A groove is opened at the upper end of the housing, and a sealing gasket is placed inside the groove. The inner surface of the sealing gasket fits with the outer surface of the valve rod, and the upper surface of the sealing gasket fits with the lower surface of the sealing plate. A through - groove is opened on one side of the sealing plate, and a mounting plate is installed inside the through - groove. A fixing frame is installed on the lower surface of the mounting plate, and a filter screen is installed on one side of the fixing frame. A groove is opened inside the through - groove, and a sealing ring is placed inside the groove. The upper surface of the sealing ring abuts against the lower surface of the mounting plate. A fixing structure is installed on one side of the mounting plate.

[0008] Further, the fixing structure includes a mounting seat. The lower surface of the mounting seat fits with the upper surface of the sealing plate. One side of the inner wall of the mounting seat fits with one side of a spring, and the other side of the spring fits with one side of a clamping block. The other side of the clamping block penetrates through one side of the inner wall of the mounting seat until it fits with the upper surface of the mounting plate.

[0009] Further, a fixing bolt is installed at the upper end of the valve rod. The lower surface of the fixing bolt fits with the upper surface of the rotary handle.

[0010] Further, a plurality of through - grooves are opened at the upper end of the fixing bolt, and a limiting rod is installed inside the through - grooves. One end of the limiting rod penetrates through one end of the valve rod until it reaches the other end of the valve rod.

[0011] Further, flange rings are installed at one ends of both the oil inlet pipe and the oil outlet pipe.

[0012] Further, anti - rust coatings are applied on the surfaces of both the housing and the sealing plate.

[0013] The utility model has the following beneficial effects:

[0014] (1) By installing a filtering structure on one side of the oil inlet pipe, the utility model can block impurities in the oil fluid and then concentrate them inside the fixing frame. When the impurities accumulate to a certain extent, only the filtering structure needs to be taken out for cleaning, thereby avoiding the wear of the inner wall of the valve cavity by impurities and greatly improving the service life.

[0015] Of course, when implementing any product of the utility model, it is not necessarily required to achieve all the above - mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a cross-sectional view of the overall structure of the present utility model;

[0019] Figure 3 It is a top view of the sealing plate structure of the present utility model;

[0020] Figure 4 It is a schematic diagram of the filtering structure of the present utility model;

[0021] Figure 5 It is a cross-sectional view of the fixing structure of the present utility model;

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] In the figure: 1. Valve body; 101. Outer shell; 102. Inlet oil pipe; 103. Outlet oil pipe; 104. Flange ring; 105. Valve cavity; 106. Valve core; 107. Connecting block; 108. Valve rod; 109. Sealing plate; 1010. Rotating handle; 1011. Sealing gasket; 1012. Mounting plate; 1013. Filter net; 1014. Sealing ring; 1015. Fixed frame; 1016. Fixed bolt; 1017. Limit rod; 2. Fixing structure; 201. Mounting seat; 202. Spring; 203. Clamping block. Specific embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0025] Please refer to Figures 1 - 5As shown in the figure, the utility model relates to a valve seat for deep - sea oil - production equipment, including a valve body 1. The valve body 1 includes a housing 101. An oil inlet pipe 102 is installed on one side of the housing 101, and an oil outlet pipe 103 is installed on one side of the housing 101. A valve cavity 105 is arranged inside the housing 101. A valve core 106 is installed inside the valve cavity 105. The inner surface of the valve cavity 105 is in fit with the outer surface of the valve core 106. A connecting block 107 is installed on the upper surface of the valve core 106. A valve rod 108 is installed on the upper surface of the connecting block 107. The upper end of the valve rod 108 penetrates through the inner surface of the sealing plate 109 until it is in fit with one side of the rotary handle 1010. A groove is formed at the upper end of the housing 101. A sealing gasket 1011 is placed inside the groove. The inner surface of the sealing gasket 1011 is in fit with the outer surface of the valve rod 108. The upper surface of the sealing gasket 1011 is in fit with the lower surface of the sealing plate 109. A through - slot is formed on one side of the sealing plate 109. A mounting plate 1012 is installed inside the through - slot. A fixing frame 1015 is installed on the lower surface of the mounting plate 1012. A filter screen 1013 is installed on one side of the fixing frame 1015. A groove is formed inside the through - slot. A sealing ring 1014 is placed inside the groove. The upper surface of the sealing ring 1014 abuts against the lower surface of the mounting plate 1012. A fixing structure 2 is installed on one side of the mounting plate 1012;

[0026] When in use, first hold the rotary handle 1010 and rotate it. Then drive the valve rod 108 to rotate synchronously through the rotary handle 1010, and then drive the valve core 106 to rotate through the valve rod 108. At this time, the oil liquid enters the valve cavity 105 from the oil inlet pipe 102 and is then output from the oil outlet pipe 103. When the oil liquid flows into the valve body 1, it first passes through the filter screen 1013 for filtration, blocking impurities inside the fixing frame 1015. The filter structure installed on one side of the oil inlet pipe 102 can block the impurities in the oil liquid and then concentrate them inside the fixing frame 1015. When the impurities accumulate to a certain extent, only need to take out the filter structure for cleaning, thus avoiding the abrasion of the inner wall of the valve cavity 105 by impurities and greatly improving the service life;

[0027] The fixing structure 2 includes a mounting seat 201. The lower surface of the mounting seat 201 is in fit with the upper surface of the sealing plate 109. One side of the inner wall of the mounting seat 201 is in fit with one side of a spring 202. The other side of the spring 202 is in fit with one side of a clamping block 203. The other side of the clamping block 203 penetrates through one side of the inner wall of the mounting seat 201 until it is in fit with the upper surface of the mounting plate 1012;

[0028] When replacing the filter screen 1013, first move the clamping block 203 to one side, then squeeze the spring 202 on one side through the clamping block 203 to contract until one end of the clamping block 203 separates from the upper end of the fixed frame 1015. Then hold the upper end of the fixed frame 1015 and take it out. Then clean the filter screen 1013, and then install it. Then release the clamping block 203 and the resilience of the spring 202 pushes the clamping block 203 to move until one end of the clamping block 203 engages with the upper end of the fixed frame 1015. At this time, the cleaning is completed. The disassembly efficiency of the filter screen 1013 is greatly improved by the fixing structure 2;

[0029] A fixing bolt 1016 is installed at the upper end of the valve stem 108, and the lower surface of the fixing bolt 1016 is in contact with the upper surface of the rotating handle 1010;

[0030] A number of through grooves are provided at the upper end of the fixing bolt 1016, and a limiting rod 1017 is installed inside the through grooves. One end of the limiting rod 1017 penetrates through one end of the valve stem 108 until the other end of the valve stem 108;

[0031] Flange rings 104 are installed at one ends of the inlet pipe 102 and the outlet pipe 103;

[0032] Antirust coatings are applied to the surfaces of the housing 101 and the sealing plate 109.

[0033] The service life of the valve body 1 is greatly improved by the setting of the antirust coating.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can understand and utilize the present utility model well. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A valve seat for a deep - sea oil production device, comprising a valve body (1), characterized in that: The valve body (1) includes a housing (101). An oil inlet pipe (102) is installed on one side of the housing (101), and an oil outlet pipe (103) is installed on one side of the housing (101). A valve cavity (105) is provided inside the housing (101). A valve core (106) is installed inside the valve cavity (105). The inner surface of the valve cavity (105) is in contact with the outer surface of the valve core (106). A connecting block (107) is installed on the upper surface of the valve core (106), and a valve rod (108) is installed on the upper surface of the connecting block (107). The upper end of the valve rod (108) penetrates through the inner surface of the sealing plate (109) until it is in contact with one side of the rotary handle (1010). A groove is formed at the upper end of the housing (101), and a sealing gasket (1011) is placed inside the groove. The inner surface of the sealing gasket (1011) is in contact with the outer surface of the valve rod (108), and the upper surface of the sealing gasket (1011) is in contact with the lower surface of the sealing plate (109). A through groove is formed on one side of the sealing plate (109), and a mounting plate (1012) is installed inside the through groove. A fixing frame (1015) is installed on the lower surface of the mounting plate (1012), and a filter screen (1013) is installed on one side of the fixing frame (1015). A groove is formed inside the through groove, and a sealing ring (1014) is placed inside the groove. The upper surface of the sealing ring (1014) abuts against the lower surface of the mounting plate (1012). A fixing structure (2) is installed on one side of the mounting plate (1012).

2. The valve seat for a deep - sea oil production device according to claim 1, wherein: The fixing structure (2) includes a mounting seat (201). The lower surface of the mounting seat (201) is in contact with the upper surface of the sealing plate (109). One side of the inner wall of the mounting seat (201) is in contact with one side of a spring (202), and the other side of the spring (202) is in contact with one side of a clamping block (203). The other side of the clamping block (203) penetrates through one side of the inner wall of the mounting seat (201) until it is in contact with the upper surface of the mounting plate (1012).

3. The valve seat for a deep - sea oil production device according to claim 1, characterized in that: A fixing bolt (1016) is installed at the upper end of the valve rod (108), and the lower surface of the fixing bolt (1016) is in contact with the upper surface of the rotary handle (1010).

4. A valve seat for a deep-sea oil production device according to claim 3, characterized in that: A number of through grooves are formed at the upper end of the fixing bolt (1016), and a limiting rod (1017) is installed inside the through grooves. One end of the limiting rod (1017) penetrates through one end of the valve rod (108) until it reaches the other end of the valve rod (108).

5. The valve seat for a deep - sea oil production device according to claim 1, characterized in that: Flange rings (104) are installed at one ends of the oil inlet pipe (102) and the oil outlet pipe (103).

6. The valve seat for a deep - sea oil production device according to claim 1, characterized in that: Antirust coatings are applied on the surfaces of the housing (101) and the sealing plate (109).

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