Electromagnetic three-way rotary valve for oil field

Abstract

The electromagnetic three-way rotary valve for the oil field relates to the technical field of electromagnetic valves and comprises a valve body, the left side and the right side of the valve body are fixedly connected with installation discs, the sides, away from the valve body, of the installation discs are provided with circular blocks, and the sides, away from the installation discs, of the circular blocks are fixedly connected with rhombic blocks. A pipeline is fixedly connected into the circular block and the rhombic block in a penetrating mode, and the left side and the right side of the valve body are the same in structure and arranged in a mirror image mode. The sealing performance is enhanced through the arrangement of the sealing assembly and the sealing ring, the connection effect is achieved through the arrangement of the threaded sleeve and the threaded opening, and the phenomenon that the sealing assembly is clamped into the surface is avoided through the arrangement of the limiting sleeve; and through the arrangement of a connecting block, a limiting sleeve and an inserting block, a sealing ring can be conveniently jacked after entering a circular opening, the problem that a current connecting mode is complex and not concise is solved, and the effects that connecting and assembling are convenient, and operation is easy and convenient are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic three-way rotary valve for oil fields. Background Art

[0002] An oil field refers to hydrocarbons that occur naturally underground. They usually gather underground to form oil layers and are in a liquid state under surface conditions. An oil field can be a single oil and gas reservoir or the sum of multiple oil and gas reservoirs. It mainly contains oil reservoirs, but may also contain gas reservoirs. An electromagnetic three-way rotary valve is a fluid control element that can control the on-off and flow direction of the medium through electrical signals. It consists of an electromagnet, a valve body, an adjusting spring, a diaphragm, etc., and is often used for flow control in hydraulic systems. The main components of an electromagnetic three-way rotary valve include a valve body, an electromagnet, an adjusting spring, a diaphragm, etc. When the electromagnet is stimulated by an electrical signal, it generates a magnetic field to attract the iron core in the pipeline, thereby changing the position of the orifice in the valve body. The working principle of an electromagnetic three-way rotary valve is usually used for diversion and confluence operations in pipelines, and is mainly used to change the flow direction or on-off of the medium in the pipeline. When the electromagnet is stimulated by an electrical signal, it generates a magnetic field to attract the iron core in the pipeline, thereby changing the position of the orifice in the valve body, causing the medium to flow or cut off.

[0003] According to patent publication number CN202972130U, an energy-saving electromagnetic three-way rotary valve for oil fields is disclosed, including a step mutation DC control circuit, the step mutation DC control circuit includes a first time relay and a second time relay, the first time relay and the second time relay are arranged in parallel, the phase line of the power supply end of the first time relay and the second time relay is connected to the output end of the single-well metering instrument, the neutral line is connected to the neutral line of the single-well metering instrument, the output end of the first time relay is connected to the primary of the transformer, the secondary of the transformer is connected to the AC end of the first silicon bridge rectifier, the DC end of the first silicon bridge rectifier is connected to the electromagnetic drive coil; the output end of the second time relay is connected to the AC end of the second silicon bridge rectifier, and the DC end of the second silicon bridge rectifier is connected to the electromagnetic drive coil. The utility model realizes DC step mutation control, overcomes the shortcomings of the traction AC solenoid valve, is flexible in rotation, and has good sealing performance. The following problems exist in the prior art:

[0004] In the current electromagnetic three-way rotary valve for oil fields, the pipeline connection method is to connect and fix it through multiple bolts in two flanges, which leads to the problem that the assembly connection is not simple and requires tightening all the multiple bolts, which is quite troublesome. At the same time, due to the long-term use of the current electromagnetic three-way rotary valve for oil fields and the large changes in external temperature, the durability of the sealing performance is reduced, so there is a problem that leakage may occur. Utility Model Content

[0005] The utility model provides an electromagnetic three-way rotary valve for oil fields to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An electromagnetic three-way rotary valve for oil fields comprises a valve body, wherein both left and right sides of the valve body are fixedly connected with mounting disks, a circular block is arranged on the side of the mounting disk away from the valve body, a diamond block is fixedly connected to the side of the circular block away from the mounting disk, a pipeline is fixedly connected through the inside of the circular block and the diamond block, and the left and right sides of the valve body have the same structure and are arranged in a mirror image.

[0008] A threaded opening communicating with each other is formed on one side of the mounting disk away from the valve body, a circular opening is formed on one side of the mounting disk away from the valve body, a sealing ring and a sealing assembly are arranged inside the mounting disk, a connecting block is fixedly connected to a side of the circular block close to the mounting disk, a limiting sleeve is fixedly connected to a side of the connecting block away from the circular block, and an insert block is fixedly connected to a side of the limiting sleeve away from the connecting block.

[0009] A further improvement of the technical solution of the utility model is that a sealing ring is fixedly connected to the right side of the inner wall of the circular opening, a sealing assembly is fixedly connected to the left side of the inner wall of the circular opening, the inner side of the sealing assembly overlaps and tightens with the outer surface of the limit sleeve, and the surface of the sealing ring overlaps and tightens with the surface of the plug.

[0010] A further improvement of the technical solution of the utility model is that the outer surfaces of the connecting block, the limiting sleeve and the inserting block overlap with the inner wall of the circular opening.

[0011] A further improvement of the technical solution of the utility model is that a through opening is opened in the middle of the circular block, a threaded sleeve is fixedly connected to the inner wall of the through opening, and the outer surface of the threaded sleeve is threadedly connected to the inner part of the threaded opening.

[0012] A further improvement of the technical solution of the utility model is that the sealing assembly includes two temperature-resistant rubbers, the opposite surfaces of the two temperature-resistant rubbers are overlapped with wear-resistant rubber and aging-resistant rubber, the opposite surfaces of the wear-resistant rubber and aging-resistant rubber are overlapped with elastic rubber, and the temperature-resistant rubber, wear-resistant rubber and elastic rubber are bonded and fixedly connected by using strong glue.

[0013] A further improvement of the technical solution of the utility model is that two annular grooves are provided on the opposite surfaces of the two temperature-resistant rubbers.

[0014] A further improvement of the technical solution of the utility model is that the material of the temperature-resistant rubber is silicone rubber, the material of the wear-resistant rubber is nitrile rubber, and the material of the aging-resistant rubber is styrene-butadiene rubber.

[0015] A further improvement of the technical solution of the utility model lies in that: two annular blocks 1 are fixedly connected to the left and right sides of the wear-resistant rubber, the outer surface of one of the annular blocks 1 is plugged into the interior of the elastic rubber, the outer surface of one of the annular blocks 1 is plugged into the interior of the annular groove, and an annular block 2 is fixedly connected to the side of the aging-resistant rubber away from the elastic rubber, and the outer surface of the annular block 2 is plugged into the interior of one of the temperature-resistant rubbers.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides an electromagnetic three-way rotary valve for oil fields, which adopts the mutual cooperation of a mounting plate, a circular port, a threaded port, a sealing ring, a sealing assembly, a circular block, a connecting block, a limiting sleeve, an insert block, a conical surface, a through port, and a threaded sleeve. The sealing performance is enhanced by the arrangement of the sealing assembly and the sealing ring, the connection effect is achieved by the arrangement of the threaded sleeve and the threaded port, the sealing assembly is easily inserted into the surface by the arrangement of the limiting sleeve, the inner part of the circular port is easily entered by the arrangement of the connecting block, the limiting sleeve and the insert block, and the sealing ring is easily tightened, thereby solving the problem that the current connection method is relatively complicated and not concise, achieving the effect of facilitating connection and assembly, and simple and convenient operation.

[0018] 2. The utility model provides an electromagnetic three-way rotary valve for oil fields, which adopts the mutual cooperation of temperature-resistant rubber, annular groove, wear-resistant rubber, annular block one, elastic rubber, aging-resistant rubber, and annular block two. The sealing performance is improved by setting four kinds of sealing rubbers, and the four kinds of sealing phenomena increase safety and improve durability. It effectively prevents the phenomenon of reduced sealing time caused by external temperature changes, solves the current problem of reduced durability of sealing rubber after long-term use, and achieves the effect of improved sealing performance and longer use time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the mounting plate and the circular block in the valve body of the utility model;

[0021] Figure 3 It is a schematic diagram of the conical surface, through port and threaded sleeve structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the sealing component of the utility model;

[0023] Figure 5This is a schematic structural diagram of the annular block 1 and the annular block 2 of the utility model.

[0024] In the figure: 1. valve body; 2. mounting plate; 21. threaded port; 22. circular port; 23. sealing ring; 24. sealing assembly; 241. temperature-resistant rubber; 2411. annular groove; 242. wear-resistant rubber; 2421. annular block one; 243. elastic rubber; 244. aging-resistant rubber; 2441. annular block two; 3. circular block; 31. connecting block; 32. limiting sleeve; 33. insert block; 331. conical surface; 301. through port; 302. threaded sleeve; 4. diamond block; 5. pipeline. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 As shown, the utility model provides an electromagnetic three-way rotary valve for oil fields, comprising a valve body 1, a mounting plate 2 is fixedly connected to the left and right sides of the valve body 1, a round block 3 is arranged on the side of the mounting plate 2 away from the valve body 1, a diamond block 4 is fixedly connected to the side of the round block 3 away from the mounting plate 2, a pipeline 5 is fixedly connected to the inside of the round block 3 and the diamond block 4, and the left and right sides of the valve body 1 have the same structure and are arranged in a mirror image;

[0027] The installation plate 2 and the circular block 3 are provided to facilitate the connection and fixing of the pipeline 5 and the valve body 1 , and the diamond block 4 is provided to facilitate the disassembly of the valve body 1 after installation.

[0028] like Figure 2-Figure 3 As shown, a threaded opening 21 communicating with the left and right sides is provided on the side of the mounting plate 2 away from the valve body 1, a circular opening 22 is provided on the side of the mounting plate 2 away from the valve body 1, a sealing ring 23 and a sealing assembly 24 are arranged inside the mounting plate 2, a connecting block 31 is fixedly connected to the side of the circular block 3 close to the mounting plate 2, a limiting sleeve 32 is fixedly connected to the side of the connecting block 31 away from the circular block 3, an insert block 33 is fixedly connected to the side of the limiting sleeve 32 away from the connecting block 31, and a sealing ring 23 is fixedly connected to the inner wall of the circular opening 22 on the right side. The sealing ring 23 and the inner wall of the circular opening 22 are fixedly connected with a sealing assembly 24, the inner side of the sealing assembly 24 overlaps and presses against the outer surface of the limiting sleeve 32, the surface of the sealing ring 23 overlaps and presses against the surface of the plug block 33, the outer surfaces of the connecting block 31, the limiting sleeve 32 and the plug block 33 overlap the inner wall of the circular opening 22, a through opening 301 is opened in the middle of the circular block 3, the inner wall of the through opening 301 is fixedly connected with a threaded sleeve 302, and the outer surface of the threaded sleeve 302 is threadedly connected to the inner surface of the threaded opening 21;

[0029] When installation and connection are required, the circular block 3 is aligned with the mounting plate 2 and moved. When it is moved to the appropriate position, the plug-in block 33 enters the interior of the circular opening 22 and, due to the setting of the conical surface 331, squeezes the sealing component 24, causing the inner side of the sealing component 24 to become larger and deform. When it is moved again, the inner side of the sealing component 24 contacts the surface of the limit sleeve 32, thereby tightening the limit seal. The circular block 3 is then rotated to drive the threaded sleeve 302 to move and contact the threaded opening 21, thereby performing a threaded connection and fixing. When it is rotated to the appropriate position, the plug-in block 33 squeezes and tightens the sealing ring 23, thereby providing a secondary seal, thereby facilitating installation. After the pipe 5 is connected to the valve body 1, the other end of the pipe 5 is installed and connected to other equipment, and the pipes 5 on the left and right sides of the valve body 1 are connected in the same manner.

[0030] like Figure 4-Figure 5 As shown, the sealing assembly 24 includes two temperature-resistant rubbers 241, and the opposite surfaces of the two temperature-resistant rubbers 241 are overlapped with wear-resistant rubber 242 and aging-resistant rubber 244, and the opposite surfaces of the wear-resistant rubber 242 and aging-resistant rubber 244 are overlapped with elastic rubber 243. The temperature-resistant rubber 241, the wear-resistant rubber 242, and the elastic rubber 243 are bonded and fixedly connected by strong glue, and the opposite surfaces of the two temperature-resistant rubbers 241 are provided with two annular grooves 2411. The material of the temperature-resistant rubber 241 is silicone rubber, and the wear-resistant rubber 24 The material of the wear-resistant rubber 244 is nitrile rubber, the material of the wear-resistant rubber 242 is styrene-butadiene rubber, and the left and right sides of the wear-resistant rubber 242 are fixedly connected with two annular blocks 1 2421, the outer surface of one annular block 1 2421 is plugged into the inside of the elastic rubber 243, and the outer surface of one annular block 1 2421 is plugged into the inside of the annular groove 2411, and the side of the aging-resistant rubber 244 away from the elastic rubber 243 is fixedly connected with an annular block 2 2441, and the outer surface of the annular block 2 2441 is plugged into the inside of one of the temperature-resistant rubbers 241;

[0031] By setting the annular groove 2411, the annular block 1 2421 and the annular block 2441, it is convenient to firmly bond the temperature-resistant rubber 241 and the elastic rubber 243, so that the bonding contact area is increased. The silicone rubber in the temperature-resistant rubber 241 has high and low temperature resistance, thereby effectively preventing the sealing rubber from being affected by temperature changes. The nitrile rubber in the wear-resistant rubber 242 has oil resistance, wear resistance and durability, and can maintain good sealing performance under high temperature, high pressure and harsh working conditions. The styrene-butadiene rubber and nitrile rubber in the aging-resistant rubber 244 cooperate with each other, thereby improving the oil resistance and wear resistance. The styrene-butadiene rubber has good weather resistance and aging resistance, and still maintains stable performance in various harsh environments. Through the cooperation between the rubbers, multiple sealing is achieved, which improves the sealing performance and durability.

[0032] The following is a detailed description of the working principle of the electromagnetic three-way rotary valve used in the oil field.

[0033] When installation and connection are required, the circular block 3 is aligned with the mounting plate 2 and moved. When it moves to the appropriate position, the plug-in block 33 enters the interior of the circular opening 22 and squeezes the sealing component 24 due to the setting of the conical surface 331. At the same time, the inner side of the sealing component 24 contacts the surface of the limit sleeve 32 to tighten the limit seal. At the same time, the threaded sleeve 302 contacts the threaded opening 21 to perform threaded connection and fixation, so that the plug-in block 33 squeezes and tightens the sealing ring 23, thereby having a secondary seal. The setting of the annular groove 2411, the annular block 1 2421 and the annular block 2 2441 facilitates the phenomenon of firmly bonding the temperature-resistant rubber 241 and the elastic rubber 243. Among them, the temperature-resistant rubber 241, the wear-resistant rubber 242, the aging-resistant rubber 244 and the elastic rubber 243 cooperate with each other to achieve multiple sealing phenomena, thereby improving the sealing performance and durability.

[0034] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An electromagnetic three-way rotary valve for oil fields, comprising a valve body (1), characterized in that: The left and right sides of the valve body (1) are both fixedly connected with a mounting plate (2); a circular block (3) is arranged on the side of the mounting plate (2) away from the valve body (1); a diamond block (4) is fixedly connected to the side of the circular block (3) away from the mounting plate (2); a pipe (5) is fixedly connected through the inside of the circular block (3) and the diamond block (4); the left and right sides of the valve body (1) have the same structure and are arranged in a mirror image; A threaded opening (21) communicating with each other is provided on the side of the mounting plate (2) away from the valve body (1), a circular opening (22) is provided on the side of the mounting plate (2) away from the valve body (1), a sealing ring (23) and a sealing assembly (24) are arranged inside the mounting plate (2), a connecting block (31) is fixedly connected to the side of the circular block (3) close to the mounting plate (2), a limiting sleeve (32) is fixedly connected to the side of the connecting block (31) away from the circular block (3), and an insert block (33) is fixedly connected to the side of the limiting sleeve (32) away from the connecting block (31).

2. The electromagnetic three-way rotary valve for oil fields according to claim 1, characterized in that: A sealing ring (23) is fixedly connected to the right side of the inner wall of the circular opening (22), and a sealing assembly (24) is fixedly connected to the left side of the inner wall of the circular opening (22); the inner side of the sealing assembly (24) overlaps and presses against the outer surface of the limiting sleeve (32), and the surface of the sealing ring (23) overlaps and presses against the surface of the plug (33).

3. The electromagnetic three-way rotary valve for oil fields according to claim 1, characterized in that: The outer surfaces of the connecting block (31), the limiting sleeve (32) and the inserting block (33) overlap with the inner wall of the circular opening (22).

4. The electromagnetic three-way rotary valve for oil fields according to claim 1, characterized in that: A through opening (301) is provided in the middle of the circular block (3), a threaded sleeve (302) is fixedly connected to the inner wall of the through opening (301), and the outer surface of the threaded sleeve (302) is threadedly connected to the inner surface of the threaded opening (21).

5. The electromagnetic three-way rotary valve for oil fields according to claim 1, characterized in that: The sealing assembly (24) comprises two temperature-resistant rubbers (241), the opposing surfaces of the two temperature-resistant rubbers (241) are overlapped with wear-resistant rubbers (242) and aging-resistant rubbers (244), the opposing surfaces of the wear-resistant rubbers (242) and aging-resistant rubbers (244) are overlapped with elastic rubbers (243), and the temperature-resistant rubbers (241), the wear-resistant rubbers (242), and the elastic rubbers (243) are bonded and fixedly connected by using strong glue.

6. The electromagnetic three-way rotary valve for oil fields according to claim 5, characterized in that: Two annular grooves (2411) are formed on the opposite surfaces of the two temperature-resistant rubbers (241).

7. The electromagnetic three-way rotary valve for oil fields according to claim 5, characterized in that: The material of the temperature-resistant rubber (241) is silicone rubber, the material of the wear-resistant rubber (242) is nitrile rubber, and the material of the aging-resistant rubber (244) is styrene-butadiene rubber.

8. The electromagnetic three-way rotary valve for oil fields according to claim 5, characterized in that: Two annular blocks (2421) are fixedly connected to the left and right sides of the wear-resistant rubber (242), the outer surface of one of the annular blocks (2421) is plugged into the interior of the elastic rubber (243), the outer surface of one of the annular blocks (2421) is plugged into the interior of the annular groove (2411), and the side of the aging-resistant rubber (244) away from the elastic rubber (243) is fixedly connected to an annular block (2441), the outer surface of the annular block (2441) is plugged into the interior of one of the temperature-resistant rubbers (241).

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