A drain valve for oil fields

Abstract

The utility model discloses a kind of drainage valves for oil field, comprising: spherical valve shell, its top is provided as opening and is fixedly connected with cover, the bottom of the spherical valve shell is connected with inlet pipe, the four sides of spherical valve shell are connected with liquid outlet pipe;Ball, its left side and bottom are provided with same L-shaped flow channel, the bottom of L-shaped flow channel is vertically aligned with inlet pipe top end and is communicated, the left side of L-shaped flow channel is communicated with the liquid outlet pipe of left side and is horizontally aligned with.The utility model is provided with a series of structures, it is convenient to switch application between oil discharge or drainage, and according to different direction pool to different direction flexible switching drainage, realize the effect that one drainage valve carries out oil discharge and different direction drainage and carries out flexible switching application, improve use flexibility, and it is convenient to show indicating liquid conveying and discharging direction when rotating, personnel is conveniently clear to know flow direction and whether in staggered cut-off state.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a drainage valve for oil fields. Background Technology

[0002] Oilfield drainage valves are a type of shut-off valve used in oilfield operations. By opening them, water or oil transported in pipelines can be discharged. Existing oilfield shut-off valves often only have the functions of opening and shutting off.

[0003] In applications such as well washing and water injection followed by backflow, it is often necessary to switch between oil drainage and water drainage. In addition, on-site drainage also needs to be directed to different directions depending on the location of the water tank. It is difficult to use a single valve to flexibly switch between oil drainage and drainage in different directions. In view of this, this application proposes a drainage valve for oil fields to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a drainage valve for oil fields to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drainage valve for oil fields, comprising:

[0006] A spherical valve body has an opening at the top and a fixed cap. The bottom of the spherical valve body is connected to and fixed with an inlet pipe, and all four sides of the spherical valve body are connected to and fixed with outlet pipes. The inlet pipe is used to connect to the oilfield drainage outlet to supply liquid, and the multiple outlet pipes are used to connect to drainage pipes or oil drainage pipes in different directions according to site requirements.

[0007] The ball is sealed and movably fitted inside the spherical valve body. The left side and bottom of the ball are provided with the same L-shaped flow channel. The bottom of the L-shaped flow channel is vertically aligned and connected to the top of the liquid inlet pipe, and the left side of the L-shaped flow channel is horizontally aligned and connected to the left side of the liquid outlet pipe.

[0008] A round box with an opening at the bottom that is fixedly connected to the top of a lid;

[0009] The pressure-regulating tensioning rotary drive assembly is fixedly connected between the top of the sphere and the inner wall of the top of the round box. The pressure-regulating tensioning rotary drive assembly is used to drive the sphere to rotate and adjust, and then tighten and lock it after adjustment. The sphere is used to drive the L-shaped flow channel to rotate when rotating, so as to change the flow direction between multiple liquid outlet pipes. With liquid outlet pipes in four positions and the liquid flow direction can be changed according to the usage, it can facilitate the flexible adjustment of the application by personnel according to the oil or water discharge work and the discharge direction.

[0010] The cover indicator component is fixedly sleeved on the outside of the pressure regulating tension rotary drive component; the cover indicator component is used to cover the upper part of the circular box and to indicate the direction when the user adjusts the flow direction.

[0011] Preferably, the pressure-adjustable tensioning rotary drive assembly includes a hard anti-slip rubber ring fixedly connected to the inner wall of the top of the round box. The top of the sphere is configured as a horizontal structure and fixedly connected to a rotating shaft. The cover is rotatably sleeved on the rotating shaft. A pressure plate is provided above the rotating shaft. The top of the pressure plate is fixedly connected in a ring with multiple triangular blocks whose top ends are in tight contact with the hard anti-slip rubber ring. Two vertical guide rods are fixedly connected to the bottom of the pressure plate. The rotating shaft is slidably sleeved on the two vertical guide rods. The same adjusting plate is slidably sleeved on the two vertical guide rods. Two compression springs in a compressed state are fixedly connected between the bottom of the adjusting plate and the top of the rotating shaft. The compression springs are movably sleeved on the corresponding vertical guide rods.

[0012] A T-shaped rotating rod is fixedly embedded in the top of the pressure plate, the round box is movably sleeved on the T-shaped rotating rod, and a T-shaped screw is rotatably installed on the top of the adjusting plate, with the T-shaped rotating rod threaded onto the T-shaped screw.

[0013] Preferably, the cover indicator assembly includes a circular sleeve fixedly fitted on the outside of the T-shaped rotating rod. The bottom of the circular sleeve is set as an opening. The circular sleeve is movably fitted on the circular box. An indicator needle is fixedly connected to the bottom left side of the circular sleeve. The indicator needle is in the same direction as the liquid outlet tube on the left side and cooperates with multiple liquid outlet tubes.

[0014] Preferably, the outer side of the sphere is bonded and covered with a sealing sleeve that is in movable contact with the inner side of the spherical valve housing. The top of the sealing sleeve and the top of the sphere are in movable contact with the bottom of the cap. The left side and bottom of the sealing sleeve are provided with connecting holes, which are respectively connected to the bottom and left side of the L-shaped flow channel.

[0015] Preferably, the bottom end of the T-shaped rotating rod is provided with a groove, and the inner wall of the top of the groove is provided with a threaded hole for threaded connection with the T-shaped screw.

[0016] Preferably, the top of the round box has a circular through hole, and the T-shaped rotating rod is located inside the circular through hole and does not contact the inner wall of the circular through hole.

[0017] Preferably, the top end of the rotating shaft has two vertical guide grooves that slide and fit with the outer side of the corresponding vertical guide rod.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. Through the combination of the inlet pipe, multiple outlet pipes, spherical valve shell, ball, L-shaped flow channel, round box and pressure-regulating tensioning rotary drive assembly, it is possible to switch between oil discharge and drainage and flexibly switch drainage in different directions according to different locations of the water tank. This achieves the effect of flexibly switching between oil discharge and drainage in different directions with a single drainage valve, thus improving the flexibility of use.

[0020] 2. The adjustable tensioning rotary drive component can tighten and lock the ball after adjustment, and can also adjust the tensioning and locking force to avoid the phenomenon of fatigue and weakening of the elasticity of the compression spring after long-term use, which would lead to unstable application, thus improving the stability of subsequent use and extending the service life.

[0021] 3. By combining the pressure-regulating tensioning rotary drive assembly and the cover indicator assembly, the direction of liquid flow and discharge can be clearly indicated during rotation, making it easy for personnel to clearly know the flow direction and whether it is in a staggered cutoff state.

[0022] This utility model, through the setting of a series of structures, facilitates the switching between oil discharge and drainage and the flexible switching of drainage in different directions according to different locations of the water tank. It achieves the effect of flexibly switching between oil discharge and drainage in different directions with a single drainage valve, improving the flexibility of use. It also makes it easy to clearly indicate the direction of liquid flow and discharge when adjusting, so that personnel can clearly know the direction of flow and whether it is in a staggered cut-off state. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a drainage valve for oil fields proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the main sectional view of a drainage valve for oil fields proposed in this utility model;

[0025] Figure 3 for Figure 2 A magnified structural diagram of part A in the diagram.

[0026] In the diagram: 1. Spherical valve body; 101. Outlet pipe; 102. Inlet pipe; 103. Cover; 2. Ball; 201. L-shaped flow channel; 3. Round box; 4. Rotating shaft; 401. Vertical guide rod; 402. Pressure plate; 403. Adjusting plate; 404. Compression spring; 405. Triangular block; 406. T-shaped rotating rod; 407. T-shaped screw; 408. Hard anti-slip rubber ring; 5. Round retaining sleeve; 501. Indicator needle. Detailed Implementation

[0027] 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.

[0028] like Figures 1 to 3 As shown in this embodiment, an oilfield drainage valve includes:

[0029] The spherical valve body 1 has an opening at the top and a cover 103 fixedly connected thereto. The bottom of the spherical valve body 1 is connected to and fixedly connected to an inlet pipe 102. All four sides of the spherical valve body 1 are connected to and fixedly connected to outlet pipes 101. The spherical valve body 1 is formed by two semi-circular spherical shells fixedly connected to each other. The inlet pipe 102 is used to connect to the oilfield drainage outlet to supply liquid. The multiple outlet pipes 101 are used to connect to drainage pipes or oil drainage pipes in different directions outside the site according to the site requirements.

[0030] The ball 2 is sealed and movably sleeved inside the spherical valve body 1. The left side and bottom of the ball 2 are provided with the same L-shaped flow channel 201. The bottom of the L-shaped flow channel 201 is vertically aligned and connected to the top of the liquid inlet pipe 102, and the left side of the L-shaped flow channel 201 is horizontally aligned and connected to the left side of the liquid outlet pipe 101.

[0031] The round box 3 has an opening at its bottom and is fixedly connected to the top of the cover 103;

[0032] The pressure-regulating tensioning rotary drive assembly is fixedly connected between the top of the sphere 2 and the inner wall of the top of the round box 3. The pressure-regulating tensioning rotary drive assembly is used to drive the sphere 2 to rotate and adjust, and to tighten and lock it after adjustment. The sphere 2 is used to drive the L-shaped flow channel 201 to rotate when rotating, so as to change the flow direction among multiple liquid outlet pipes 101. By using the liquid outlet pipes 101 at four positions and the liquid flow direction can be changed according to the usage, it can facilitate the personnel to flexibly adjust the application according to the oil or water discharge work and the discharge direction.

[0033] The cover indicator component is fixedly sleeved on the outside of the pressure regulating tension rotary drive component; the cover indicator component is used to cover the upper part of the circular box 3 and to indicate the direction when the user adjusts the flow direction.

[0034] Specifically, the pressure-adjustable tensioning rotary drive assembly includes a hard anti-slip rubber ring 408 fixedly connected to the inner wall of the top of the round box 3. The top of the ball 2 is set as a horizontal structure and fixedly connected to a rotating shaft 4. The cover 103 is rotatably sleeved on the rotating shaft 4. The top of the cover 103 has a through hole, and a sealed bearing is fixedly sleeved in the through hole. The inner ring of the sealed bearing is fixedly sleeved with the outer side of the rotating shaft 4, which achieves the effect of rotating the rotating shaft 4. A pressure plate 402 is set above the rotating shaft 4. The top of the pressure plate 402 is fixedly connected in a ring with multiple triangular blocks 405, each with its top end in tight contact with a hard anti-slip rubber ring 408. The bottom of the pressure plate 402 is fixedly connected to two vertical guide rods 401. A rotating shaft 4 is slidably sleeved on the two vertical guide rods 401. The top of the rotating shaft 4 has two vertical guide grooves that slide and fit onto the outer side of the corresponding vertical guide rod 401, thus guiding the vertical sliding of the vertical guide rod 401. The same adjusting plate 403 is slidably sleeved on both vertical guide rods 401. The adjusting plate 403 has a guide hole for sliding fitting with the outer side of the corresponding vertical guide rod 401. Two compression springs 404 in a compressed state are fixedly connected between the bottom of the adjusting plate 403 and the top of the rotating shaft 4. The compression springs 404 are movably sleeved on the corresponding vertical guide rod 401. A T-shaped rotating rod 406 is embedded and fixed on the top of the pressure plate 402. The round box 3 is movably sleeved on the T-shaped rotating rod 406. A round through hole is opened on the top of the round box 3. The T-shaped rotating rod 406 is located in the round through hole and is connected to the round through hole. The inner wall of the hole does not contact, allowing the T-shaped rotating rod 406 to move through. A T-shaped screw 407 is rotatably mounted on the top of the adjusting plate 403. The T-shaped rotating rod 406 is threaded onto the T-shaped screw 407. The bottom end of the T-shaped rotating rod 406 has a groove, and the inner wall of the top of the groove has a threaded hole that is threaded to the T-shaped screw 407. The threaded connection between the T-shaped screw 407 and the threaded hole facilitates the vertical and horizontal displacement when the T-shaped screw 407 rotates alone.

[0035] The rigid anti-slip rubber ring 408, rotating shaft 4, pressure plate 402, triangular block 405, vertical guide rod 401, adjusting plate 403, compression spring 404, T-shaped rotating rod 406, and T-shaped screw 407 are configured to work together. Pressing down the T-shaped rotating rod 406 causes it to move the T-shaped screw 407 and pressure plate 402 downwards. The T-shaped screw 407 drives the adjusting plate 403 downwards, compressing the two compression springs 404. When the pressure plate 402 moves downwards, it causes the triangular block 405 to engage with the rigid anti-slip rubber ring 408. The rubber ring 408 is separated, releasing the squeezing and locking state. The T-shaped rotating rod 406 is rotated to drive the pressure plate 402 to rotate. The pressure plate 402 drives the rotating shaft 4 to rotate via two vertical guide rods 401. The rotating shaft 4 drives the ball 2 to rotate for adjustment. After adjusting the liquid flow direction, the pressure on the T-shaped rotating rod 406 is released. The elastic force of the compressed spring 404, which is in a compressed state, drives the adjusting plate 403 to move upwards. The adjusting plate 403 moves upwards via the T-shaped screw 407 and the T-shaped rotating rod. 406 and pressure plate 402 drive multiple triangular blocks 405 upwards to press and tighten against the hard anti-slip rubber ring 408, thereby locking the pressure plate 402. This further locks the ball 2 via the vertical guide rod 401 and rotating shaft 4, achieving the effect of rotating and adjusting the ball 2 and then tightening and locking it. Additionally, when it is necessary to increase the tightening and locking force, or when the elasticity of the compression spring 404 weakens due to fatigue after prolonged use, one hand assists by preventing the T-shaped rotating rod 406 from rotating, while the T-shaped screw 407 is rotated clockwise. The T-shaped screw 407 rotates within the T-shaped rotating rod 406 and moves downwards independently. At this time, the T-shaped screw 407 drives the adjusting plate 403 to slide downwards on the two vertical guide rods 401, and compresses the compression spring 404 downwards independently. This changes the initial compression degree of the compression spring 404, thereby changing its tightening force, achieving convenient adjustment of the tightening and locking force, improving subsequent use stability, and extending service life.

[0036] Furthermore, the covering indicator component includes a circular sleeve 5 fixedly sleeved on the outside of the T-shaped rotating rod 406. The bottom of the circular sleeve 5 is set as an opening. The circular sleeve 5 is movably sleeved on the circular box 3. An indicator needle 501 is fixedly connected to the bottom left side of the circular sleeve 5. The indicator needle 501 is located in the same direction as the liquid outlet pipe 101 on the left side and cooperates with multiple liquid outlet pipes 101. The circular sleeve 5 and the indicator needle 501 cooperate to cover the upper part of the circular box 3. When the T-shaped rotating rod 406 is rotated for adjustment, the T-shaped rotating rod 406 also drives the circular sleeve 5 to rotate. The circular sleeve 5 drives the indicator needle 501 to rotate to indicate the liquid flow direction in real time, so that personnel can clearly know the flow direction.

[0037] Furthermore, the outer side of the ball 2 is covered with a sealing sleeve that is in movable contact with the inner side of the spherical valve housing 1. The top of the sealing sleeve and the top of the ball 2 are in movable contact with the bottom of the cover 103. The left side and bottom of the sealing sleeve are provided with connecting holes, which are connected to the bottom and left side of the L-shaped flow channel 201, respectively. The sealing sleeve provides a movable sealing effect between the outer side of the ball 2 and the inner side of the spherical valve housing 1.

[0038] The usage method of this embodiment is as follows: When using the oilfield drainage valve, the inlet pipe 102 is connected to the oilfield drainage outlet to supply liquid in. Multiple outlet pipes 101 are connected to external drainage pipes or oil drainage pipes in different directions according to site requirements. If the left side is for oil drainage and the other sides are connected to external drainage pipes in different directions, during oil drainage, the oil enters the L-shaped flow channel 201 through the inlet pipe 102 and then flows into the external oil drainage pipe through the outlet pipe 101 on the left side for transportation and drainage. When drainage is required to drain to the front side, the T-shaped rotating rod 406 is first pressed down to drive the T-shaped screw. 407 and pressure plate 402 move downwards. T-shaped screw 407 drives adjusting plate 403 downwards to compress two compression springs 404. When pressure plate 402 moves downwards, it drives two vertical guide rods 401 to slide vertically in the corresponding vertical guide grooves on rotating shaft 4. At the same time, when pressure plate 402 moves downwards, it also drives triangular block 405 to separate from hard anti-slip rubber ring 408, releasing the squeezing and grinding locking state. At this time, rotating T-shaped rotating rod 406 drives pressure plate 402 to rotate. Pressure plate 402 drives rotating shaft 4 to rotate through two vertical guide rods 401. Rotating shaft 4 drives ball 2 to rotate. Ball 2 drives L-shaped flow channel 201 to rotate to the front liquid outlet pipe 1. When aligned, release the pressure on the T-shaped rotating rod 406. The spring force of the compressed spring 404, which is in a compressed state, drives the adjusting plate 403 to move upward. The adjusting plate 403, through the T-shaped screw 407, the T-shaped rotating rod 406, and the pressure plate 402, drives multiple triangular blocks 405 to press and tighten against the hard anti-slip rubber ring 408, thereby locking the pressure plate 402. Furthermore, the ball 2 is locked through the vertical guide rod 401 and the rotating shaft 4, achieving the effect of rotating and adjusting the ball 2 and then tightening and locking it after adjustment. At this time, water enters through the inlet pipe 102 and then passes through the L-shaped flow channel 201 and the outlet on the front side. Pipe 101 discharges water to the front. When the water tank on the front side is full or needs to be changed to drain water to the right, press the T-shaped rotating rod 406 again and rotate it. The movement process is the same as the above-mentioned pressing the T-shaped rotating rod 406 and rotating it. The ball 2 is driven to rotate again to change the conveying direction. The setting of multiple outlet pipes 101 makes it convenient to switch flexibly between multiple drainage directions. It realizes the effect of conveniently switching between oil discharge and water discharge and flexibly switching drainage to different directions according to different water tanks. It is convenient to use a single drain valve to flexibly switch between oil discharge and drainage in different directions, improving the flexibility of use.

[0039] In addition, when it is necessary to stop the application, when adjusting the rotation of the ball 2, the ball 2 can be used to drive the L-shaped flow channel 201 to be staggered with multiple liquid outlet pipes 101. That is, the L-shaped flow channel 201 can be located between any two liquid outlet pipes 101 without being aligned and connected. When the T-shaped rotating rod 406 is pressed, it also drives the circular retaining sleeve 5 to move down. When the T-shaped rotating rod 406 is rotated for adjustment, the T-shaped rotating rod 406 also drives the circular retaining sleeve 5 to rotate. The circular retaining sleeve 5 drives the indicator needle 501 to rotate to indicate the liquid flow direction in real time, so that the personnel can clearly know the flow direction and whether it is in the staggered stop state, so that the personnel can clearly control the adjustment.

[0040] Additionally, when it is necessary to increase the tightening and locking force, or when the elasticity of the compression spring 404 weakens due to fatigue after prolonged use, one hand can assist by keeping the T-shaped rotating rod 406 stationary while rotating the T-shaped screw 407 clockwise. The T-shaped screw 407 rotates within the T-shaped rotating rod 406 and moves downwards independently. At this time, the T-shaped screw 407 drives the adjusting plate 403 to slide downwards on the two vertical guide rods 401, and compresses the compression spring 404 downwards independently. This changes the initial compression degree of the compression spring 404, thereby changing its tightening force, achieving the effect of convenient adjustment of the tightening and locking force, improving the stability of subsequent use, and extending its service life.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A drainage valve for oilfield use, comprising a spherical valve body (1), characterized in that: include: A spherical valve housing (1) has an opening at its top and a cap (103) fixedly connected thereto. An inlet pipe (102) is fixedly connected to the bottom of the spherical valve housing (1), and an outlet pipe (101) is fixedly connected to all four sides of the spherical valve housing (1). The ball (2) is sealed and movably fitted inside the spherical valve shell (1). The ball (2) has the same L-shaped flow channel (201) on its left side and bottom. The bottom of the L-shaped flow channel (201) is vertically aligned and connected to the top of the liquid inlet pipe (102). The left side of the L-shaped flow channel (201) is horizontally aligned and connected to the liquid outlet pipe (101) on the left side. A round box (3) with an opening at the bottom and fixedly connected to the top of a cover (103); The pressure-adjustable tensioning rotary drive assembly is fixedly connected between the top of the sphere (2) and the inner wall of the top of the round box (3); The cover indicator component is fixedly sleeved on the outside of the pressure-regulating tension rotary drive component.

2. The drainage valve for oilfields according to claim 1, characterized in that: The adjustable tensioning rotary drive assembly includes a hard anti-slip rubber ring (408) fixedly connected to the inner wall of the top of the round box (3). The top of the sphere (2) is set as a horizontal structure and is fixedly connected to a rotating shaft (4). The cover (103) is rotatably sleeved on the rotating shaft (4). A pressure plate (402) is set above the rotating shaft (4). The top of the pressure plate (402) is fixedly connected in a ring with multiple triangular blocks whose top ends are pressed tightly against the hard anti-slip rubber ring (408). (405) The bottom of the pressure plate (402) is fixedly connected to two vertical guide rods (401), and the rotating shaft (4) is slidably sleeved on the two vertical guide rods (401). The same adjusting plate (403) is slidably sleeved on the two vertical guide rods (401). The bottom of the adjusting plate (403) and the top of the rotating shaft (4) are fixedly connected to two compression springs (404) in a compressed state. The compression springs (404) are movably sleeved on the corresponding vertical guide rods (401). The top of the pressure plate (402) is fitted with a T-shaped rotating rod (406), the round box (3) is movably sleeved on the T-shaped rotating rod (406), and the top of the adjusting plate (403) is rotatably installed with a T-shaped screw (407), and the T-shaped rotating rod (406) is threaded onto the T-shaped screw (407).

3. The drainage valve for oilfields according to claim 2, characterized in that: The covering indicator assembly includes a circular sleeve (5) fixedly sleeved on the outside of the T-shaped rotating rod (406). The bottom of the circular sleeve (5) is set as an opening. The circular sleeve (5) is movably sleeved on the circular box (3). An indicator needle (501) is fixedly connected to the bottom left side of the circular sleeve (5). The indicator needle (501) is located in the same direction as the liquid outlet pipe (101) on the left side and cooperates with multiple liquid outlet pipes (101).

4. The drainage valve for oilfields according to claim 1, characterized in that: The outer side of the ball (2) is covered with a sealing sleeve that is in contact with the inner side of the spherical valve shell (1). The top of the sealing sleeve and the top of the ball (2) are in contact with the bottom of the cover (103). The left side and bottom of the sealing sleeve are provided with connecting holes, which are connected to the bottom and left side of the L-shaped flow channel (201) respectively.

5. A drainage valve for oilfields according to claim 2, characterized in that: The bottom end of the T-shaped rotating rod (406) is provided with a groove, and the top inner wall of the groove is provided with a threaded hole for threaded connection with the T-shaped screw (407).

6. The drainage valve for oilfields according to claim 2, characterized in that: The top of the round box (3) has a circular through hole, and the T-shaped rotating rod (406) is located inside the circular through hole and does not contact the inner wall of the circular through hole.

7. A drainage valve for oilfields according to claim 2, characterized in that: The top of the rotating shaft (4) has two vertical guide grooves that slide and fit with the outer side of the corresponding vertical guide rod (401).

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