Three-position four-way rotary valve, flow distribution console and blowout preventer control system

Abstract

The utility model relates to petroleum hydraulic valve technical field provides a three position four way rotary valve, shunt control platform and blowout preventer control system, this three position four way rotary valve includes valve core, valve panel, valve body, valve cover, valve seat and rotating shaft. The utility model provides three position four way rotary valve through detachable setting valve panel on valve core, make rotating shaft positive direction rotation, input passage intercommunication first passage, second passage intercommunication reflux passage, the valve is in first state, can close blowout preventer, when rotating shaft reverse direction rotation, first through hole and second valve seat intercommunication, second through hole and third valve seat intercommunication, make first passage intercommunication reflux passage, third through hole and fourth valve seat intercommunication, fourth through hole and first valve seat intercommunication, second passage intercommunication input passage, the valve is in second state, can open blowout preventer, make the valve only needs to replace valve panel to complete maintenance, need not to replace whole valve to prolong the life of the valve, reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of petroleum hydraulic valve technology, specifically to a three-position four-way rotary valve, a flow control console, and a blowout preventer control system. Background Technology

[0002] Blowout preventers (BOPs) are used to close the wellhead during oil extraction operations such as well testing, well workover, and well completion to prevent blowout accidents. They combine the functions of full sealing and partial sealing into one unit and are characterized by simple structure, easy operation, and high pressure resistance. They are commonly used safety wellhead sealing devices in oil fields to prevent blowouts.

[0003] During oil extraction, blowout preventers (BOPs) need to be switched on and off frequently. To avoid safety accidents caused by manually rotating the BOP's locking wheel, a hydraulic system is usually used to remotely control the BOP's on / off state. This is achieved by switching the state of a three-position four-way valve in the hydraulic system.

[0004] However, in related blowout preventer control technologies, the three-position four-way valves need to be switched frequently, resulting in a short lifespan and frequent replacements, which increases the cost of use. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, the present invention provides a three-position four-way rotary valve, a flow control console and a blowout preventer control system to solve at least one of the above-mentioned technical defects in the prior art, thereby extending the service life of the three-position four-way rotary valve and reducing the cost of use.

[0006] To achieve the objective of this utility model, this utility model provides a three-position four-way rotary valve, comprising:

[0007] The valve core is provided with a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, wherein the first flow channel and the second flow channel are interconnected, and the third flow channel and the fourth flow channel are interconnected.

[0008] A valve panel is detachably disposed on the valve core. The valve panel is provided with a first through hole communicating with the first flow channel, a second through hole communicating with the second flow channel, a third through hole communicating with the third flow channel, and a fourth through hole communicating with the fourth flow channel.

[0009] The valve body has a receiving cavity, and the valve core and the valve panel are disposed in the receiving cavity;

[0010] The valve cover is equipped with an input channel, a first channel, a return channel, and a second channel;

[0011] The valve seat includes a first valve seat, a second valve seat, a third valve seat, and a fourth valve seat. The first valve seat is connected to the input channel, the second valve seat is connected to the first channel, the third valve seat is connected to the return channel, and the fourth valve seat is connected to the second channel.

[0012] A rotating shaft is connected to the valve core and drives the valve core to rotate;

[0013] In the first state, the rotating shaft rotates in the positive direction, the first through hole engages with the first valve seat, the second through hole engages with the second valve seat, so that the input channel is connected to the first channel; the third through hole engages with the third valve seat, and the fourth through hole engages with the fourth valve seat, so that the second channel is connected to the return channel;

[0014] In the second state, the rotating shaft rotates in the opposite direction, the first through hole engages with the second valve seat, the second through hole engages with the third valve seat, so that the first channel connects to the return channel; the third through hole engages with the fourth valve seat, the fourth through hole engages with the first valve seat, and the second channel connects to the input channel.

[0015] Preferably, it also includes a thrust ball bearing, which is disposed in the receiving cavity.

[0016] The thrust ball bearing abuts against the valve core along the axial direction of the valve core.

[0017] Preferably, it further includes a drive assembly, which includes a drive gear, a rack, and a drive cylinder.

[0018] The drive gear is sleeved on the rotating shaft, and the rack meshes with the drive gear.

[0019] The drive cylinder drives the rack to extend and retract, causing the drive gear to rotate.

[0020] Preferably, the drive assembly further includes a drive handle.

[0021] The first end of the drive handle is fixed to the rotating shaft, and the second end of the drive handle is a free end.

[0022] Preferably, it also includes a sealing ring, which is sleeved on the rotating shaft.

[0023] The sealing ring is located between the drive gear and the thrust ball bearing.

[0024] The sealing ring is in sealing contact with the thrust ball bearing, the rotating shaft, and the receiving cavity.

[0025] Preferably, it also includes a supporting copper sleeve, and the valve body is further provided with a through hole.

[0026] The supporting copper sleeve is fixed to the through hole.

[0027] The first end of the rotating shaft is connected to the valve core, and the second end of the rotating shaft is rotatably connected to the supporting copper sleeve.

[0028] Preferably, the valve cover is provided with a first groove communicating with the input channel, a second groove communicating with the first channel, a third groove communicating with the return channel, and a fourth groove communicating with the second channel along its own axial direction.

[0029] The first valve seat is disposed in the first groove, and a first sealing ring is also sleeved on the outside of the first valve seat, the first sealing ring sealingly abutting against the first groove.

[0030] The second valve seat is disposed in the second groove, and a second sealing ring is also sleeved on the outside of the second valve seat, the second sealing ring sealingly abutting against the second groove.

[0031] The third valve seat is disposed in the third groove, and a third sealing ring is also sleeved on the outside of the third valve seat, the third sealing ring sealingly abutting against the third groove.

[0032] The fourth valve seat is disposed in the fourth groove, and a fourth sealing ring is also sleeved on the outside of the fourth valve seat, and the fourth sealing ring is sealed and abutted against the fourth groove.

[0033] Preferably, it also includes multiple corrugated springs, wherein the corrugated springs include a first corrugated spring, a second corrugated spring, a third corrugated spring, and a fourth corrugated spring.

[0034] The first corrugated spring is disposed in the first groove, and the first corrugated spring abuts against the first valve seat and the bottom wall of the first groove.

[0035] The second corrugated spring is disposed in the second groove, and the second corrugated spring abuts against the second valve seat and the bottom wall of the second groove.

[0036] The third wave-shaped spring is disposed in the third groove, and the third wave-shaped spring abuts against the third valve seat and the bottom wall of the third groove.

[0037] The fourth wave-shaped spring is disposed in the fourth groove, and the fourth wave-shaped spring abuts against the fourth valve seat and the bottom wall of the fourth groove.

[0038] A second aspect of this utility model provides a flow diversion control console, including the aforementioned three-position four-way rotary valve and the flow diversion control console body.

[0039] The three-position four-way rotary valve is located on the main body of the flow distribution control console.

[0040] The third aspect of this utility model provides a blowout preventer control system, including the aforementioned three-position four-way rotary valve, flow control console, and blowout preventer control system body.

[0041] The three-position four-way rotary valve and the diversion control console are both located on the main body of the blowout preventer control system.

[0042] The beneficial effects of this utility model are as follows: The three-position four-way rotary valve provided by this utility model has a valve panel detachably mounted on the valve core; the valve panel is provided with a first through hole communicating with a first flow channel of the valve core, a second through hole communicating with a second flow channel, a third through hole communicating with a third flow channel, and a fourth through hole communicating with a fourth flow channel; a first valve seat is provided to connect to the input channel of the valve cover, a second valve seat to connect to the first channel, a third valve seat to connect to the return channel, and a fourth valve seat to connect to the second channel; when the rotating shaft rotates in the positive direction, the first through hole engages with the first valve seat, the second through hole engages with the second valve seat, thereby connecting the input channel to the first channel; the third through hole engages with the third valve seat, and the fourth through hole... When the valve engages with the fourth valve seat, the second channel connects to the return channel, placing the valve in its first state and allowing it to close the blowout preventer. Conversely, when the rotating shaft rotates in the opposite direction, the first through hole engages with the second valve seat, and the second through hole engages with the third valve seat, connecting the first channel to the return channel. The third through hole engages with the fourth valve seat, and the fourth through hole engages with the first valve seat, connecting the second channel to the input channel, placing the valve in its second state and allowing it to open the blowout preventer. Because the valve panel is detachably mounted on the valve core, and the valve panel contacts each valve seat, regular replacement of the valve panel is sufficient for maintenance. This eliminates the need for frequent replacement of the entire three-position four-way rotary valve, thus extending its lifespan and reducing operating costs.

[0043] The flow control console provided by this utility model, since it includes the aforementioned three-position four-way rotary valve, inevitably possesses all the advantages of that rotary valve. That is, the flow control console can also be maintained and repaired simply by periodically replacing the valve panel, without frequently replacing the entire three-position four-way rotary valve, thereby extending the lifespan of the three-position four-way rotary valve and reducing operating costs.

[0044] The blowout preventer control system provided by this utility model, since it includes the aforementioned three-position four-way rotary valve and flow divider control console, inevitably possesses all the advantages of the rotary valve and control console. That is, the blowout preventer control system can also be maintained by only periodically replacing the valve panel, without frequently replacing the entire three-position four-way rotary valve, thereby extending the life of the three-position four-way rotary valve and reducing operating costs. Attached Figure Description

[0045] The above and other objects, features, and advantages of this utility model will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this application.

[0046] Figure 1 A schematic diagram of the overall structure of the three-position four-way rotary valve provided in this embodiment of the utility model;

[0047] Figure 2 for Figure 1 Schematic sectional view along the middle AA direction;

[0048] Figure 3 for Figure 1 Cross-sectional view along the middle BB direction;

[0049] Figure 4 A schematic diagram of the structure of the three-position four-way rotary valve provided in this embodiment of the utility model after removing the valve body and part of the drive components;

[0050] Figure 5 for Figure 4 Exploded view;

[0051] Figure 6 for Figure 5 A diagram from another perspective;

[0052] Figure 7 for Figure 5 Cross-sectional view of the valve core along the CC direction;

[0053] Figure 8 for Figure 6 Cross-sectional view of the middle valve cover along the DD direction;

[0054] Figure 9 for Figure 6 Cross-sectional view of the middle valve cover along the EE direction;

[0055] Figure 10 A schematic diagram of the three-position four-way rotary valve and the blowout preventer in the first state provided in this embodiment of the utility model;

[0056] Figure 11 This is a schematic diagram of the three-position four-way rotary valve and the blowout preventer in the second state, as provided in an embodiment of this utility model.

[0057] In the picture:

[0058] 1. Closed cavity; 2. Opened cavity; 3. Piston;

[0059] 100. Valve core; 110. First flow channel; 120. Second flow channel; 130. Third flow channel; 140. Fourth flow channel;

[0060] 200, Valve panel; 210, First through hole; 220, Second through hole; 230, Third through hole; 240, Fourth through hole;

[0061] 300, Valve body; 310, Receiving cavity; 320, Through hole;

[0062] 400, Valve cover; 410, Input channel; 420, First channel; 430, Return channel; 440, Second channel; 450, First groove; 460, Second groove; 470, Third groove; 480, Fourth groove;

[0063] 500, Valve seat; 510, First valve seat; 511, First sealing ring; 520, Second valve seat; 521, Second sealing ring; 540, Fourth valve seat; 541, Fourth sealing ring;

[0064] 600. Rotating shaft; 610. Sealing ring; 620. Supporting copper sleeve;

[0065] 700, Thrust ball bearing;

[0066] 800. Drive assembly; 810. Drive gear; 820. Rack; 830. Drive cylinder; 840. Drive handle;

[0067] 900, Wave-shaped spring; 910, First wave-shaped spring; 920, Second wave-shaped spring; 940, Fourth wave-shaped spring. Detailed Implementation

[0068] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0069] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this applies. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0071] The following is combined with Figures 1 to 11 The embodiments of this utility model will be described below. It should be understood that the following description is merely an illustrative embodiment of this utility model and does not constitute any limitation on this utility model.

[0072] Combination Figures 1 to 11 The present invention provides a three-position four-way rotary valve, which is connected to a blowout preventer and can provide a variable hydraulic source for the blowout preventer, thereby controlling the on / off state of the blowout preventer.

[0073] For example, the blowout preventer has a closing chamber 1 and an opening chamber 2; when hydraulic oil enters the closing chamber 1, the volume of the closing chamber 1 increases, the volume of the opening chamber 2 decreases, the piston 3 moves towards the opening chamber 2, and the blowout preventer closes; when hydraulic oil enters the opening chamber 2, the volume of the opening chamber 2 increases, the volume of the closing chamber 1 decreases, the piston 3 moves towards the closing chamber 1, and the blowout preventer opens.

[0074] An embodiment of this utility model provides a three-position four-way rotary valve including a valve core 100, a valve panel 200, a valve body 300, a valve cover 400, a valve seat 500, and a rotating shaft 600.

[0075] The valve core 100 is provided with a first flow channel 110, a second flow channel 120, a third flow channel 130, and a fourth flow channel 140. The first flow channel 110 and the second flow channel 120 are interconnected, and the third flow channel 130 and the fourth flow channel 140 are interconnected. The valve core 100 can be made of hard alloy to increase strength and further improve service life.

[0076] The valve panel 200 is detachably mounted on the valve core 100. The valve panel 200 has a first through hole 210 communicating with the first flow channel 110, a second through hole 220 communicating with the second flow channel 120, a third through hole 230 communicating with the third flow channel 130, and a fourth through hole 240 communicating with the fourth flow channel 140. The valve panel 200 can be made of alloy steel to enhance its wear resistance and further improve its service life.

[0077] The valve body 300 is provided with a receiving cavity 310, and the valve core 100 and the valve panel 200 are both located in the receiving cavity 310.

[0078] The valve cover 400 is provided with an input channel 410, a first channel 420, a return channel 430, and a second channel 440.

[0079] Valve seat 500 includes a first valve seat 510, a second valve seat 520, a third valve seat, and a fourth valve seat 540. The first valve seat 510 is connected to the input channel 410, the second valve seat 520 is connected to the first channel 420, the third valve seat is connected to the return channel 430, and the fourth valve seat 540 is connected to the second channel 440.

[0080] The rotating shaft 600 is connected to the valve core 100 and can drive the valve core 100 to rotate within the receiving cavity 310.

[0081] In the first state, the rotating shaft 600 rotates in the positive direction, the first through hole 210 engages with the first valve seat 510, the second through hole 220 engages with the second valve seat 520, making the input channel 410 connect to the first channel 420. The third through hole 230 engages with the third valve seat, and the fourth through hole 240 engages with the fourth valve seat 540, making the second channel 440 connect to the return channel 430.

[0082] The first channel 420 can be connected to the closing chamber 1 of the blowout preventer, and the second channel 440 can be connected to the opening chamber 2 of the blowout preventer. Hydraulic oil can enter the first channel 420 from the input channel 410, and then enter the closing chamber 1, increasing the volume of the closing chamber 1. Hydraulic oil in the opening chamber 2 can enter the second channel 440 and return to the hydraulic oil tank via the return channel 430, decreasing the volume of the opening chamber 2. This causes the piston 3 to move towards the opening chamber 2, closing the blowout preventer.

[0083] In the second state, the rotating shaft 600 rotates in the opposite direction, the first through hole 210 engages with the second valve seat 520, and the second through hole 220 engages with the third valve seat, connecting the first channel 420 to the return channel 430. The third through hole 230 engages with the fourth valve seat 540, and the fourth through hole 240 engages with the first valve seat 510, connecting the second channel 440 to the input channel 410.

[0084] The first channel 420 can be connected to the closing chamber 1 of the blowout preventer, and the second channel 440 can be connected to the opening chamber 2 of the blowout preventer. Hydraulic oil can enter the second channel 440 from the input channel 410, and then enter the opening chamber 2, increasing the volume of the opening chamber 2. Hydraulic oil in the closing chamber 1 can enter the first channel 420 and return to the hydraulic oil tank via the return channel 430, decreasing the volume of the closing chamber 1. This causes the piston 3 to move towards the closing chamber 1, opening the blowout preventer.

[0085] It is understood that the three-position four-way rotary valve provided in the embodiment of this utility model is achieved by detachably mounting the valve panel 200 on the valve core 100; the valve panel 200 is provided with a first through hole 210 communicating with the first flow channel 110 of the valve core 100, a second through hole 220 communicating with the second flow channel 120, a third through hole 230 communicating with the third flow channel 130, and a fourth through hole 240 communicating with the fourth flow channel 140; a first valve seat 510 communicating with the input channel 410 of the valve cover 400, a second valve seat 520 communicating with the first channel 420, a third valve seat communicating with the return channel 430, and a fourth valve seat 540 communicating with the second channel 440; when the rotating shaft 600 rotates in the positive direction, the first through hole 210 engages with the first valve seat 510, the second through hole 220 engages with the second valve seat 520, thereby connecting the input channel 410 to the first channel 420; the third through hole 230 and the third valve seat 540 are connected to the input channel 410 and the return channel 430, respectively; when the rotating shaft 600 rotates in the positive direction, the first through hole 210 engages with the first valve seat 510, the second through hole 220 engages with the second valve seat 520, thereby connecting the input channel 410 to the first channel 420; the third through hole 230 engages with the third valve seat 540 and the return channel 430. When the valve is engaged, the fourth through hole 240 engages with the fourth valve seat 540, thereby connecting the second channel 440 to the return channel 430. In this first state, the valve can close the blowout preventer. When the rotating shaft 600 rotates in the opposite direction, the first through hole 210 engages with the second valve seat 520, and the second through hole 220 engages with the third valve seat, connecting the first channel 420 to the return channel 430. The third through hole 230 engages with the fourth valve seat 540, and the fourth through hole 240 engages with the first valve seat 510, connecting the second channel 440 to the input channel 410. In this second state, the valve can open the blowout preventer. Since the valve panel 200 is detachably mounted on the valve core 100 and contacts each valve seat 500, regular replacement of the valve panel 200 is sufficient for maintenance. This eliminates the need for frequent replacement of the entire three-position four-way rotary valve, thus extending its lifespan and reducing operating costs.

[0086] Furthermore, combined Figures 2 to 6 In some embodiments of this utility model, the three-position four-way rotary valve further includes a thrust ball bearing 700.

[0087] The thrust ball bearing 700 is disposed within the receiving cavity 310.

[0088] The thrust ball bearing 700 abuts against the valve core 100 along the axial direction of the valve core 100. For example, the first end of the thrust ball bearing 700 abuts against the shoulder of the valve body 300 forming the receiving cavity 310, and the second end of the thrust ball bearing 700 abuts against the valve core 100, so that when the valve core 100 is subjected to axial pressure, it can rotate better within the receiving cavity 310, reduce friction, and improve rotational stability.

[0089] In addition, combined Figures 4 to 6 In some embodiments of this utility model, the three-position four-way rotary valve further includes a drive assembly 800, which includes a drive gear 810, a rack 820, and a drive cylinder 830.

[0090] The drive gear 810 is sleeved on the rotating shaft 600, and the rack 820 is meshed with the drive gear 810.

[0091] The drive cylinder 830 is connected to the rack 820, and the drive cylinder 830 can drive the rack 820 to perform telescopic movement, thereby allowing the drive gear 810 to rotate. Using the drive cylinder 830 to drive the rack 820 to perform telescopic movement results in a simpler structure and more sensitive operation; using the rack 820 to drive the gear 810 to rotate improves the transmission accuracy and enhances the control precision of this three-position four-way rotary valve.

[0092] Of course, combined Figure 1 In some embodiments of this utility model, the drive assembly 800 further includes a drive handle 840.

[0093] The first end of the drive handle 840 is fixed to the rotating shaft 600, and the second end of the drive handle 840 is a free end, which improves the manual mode for driving the rotating shaft 600 to rotate, and prevents the three-position four-way rotary valve from failing in the event of a malfunction in the drive cylinder 830. The length direction of the drive handle 840 is perpendicular to the axial direction of the rotating shaft 600 to save the force required for driving.

[0094] To improve the sealing performance between the thrust ball bearing 700 and the rotating shaft 600, combined with Figure 2 In some embodiments of this utility model, the three-position four-way rotary valve further includes a sealing ring 610. The sealing ring 610 is sleeved on the rotating shaft 600.

[0095] The sealing ring 610 is located between the drive gear 810 and the thrust ball bearing 700.

[0096] The sealing ring 610 is in sealing contact with the thrust ball bearing 700, the rotating shaft 600 and the receiving cavity 310 to prevent leakage.

[0097] Combination Figure 2 In some embodiments of this utility model, the three-position four-way rotary valve also includes a supporting copper sleeve 620, and the valve body 300 is also provided with a through hole 320.

[0098] The support copper sleeve 620 is fixed in the through hole 320.

[0099] The first end of the rotating shaft 600 is connected to the valve core 100, and the second end of the rotating shaft 600 is rotatably connected to the supporting copper sleeve 620. The supporting copper sleeve 620 can prevent the rotating shaft 600 from directly contacting the valve body 300, reduce friction, and reduce vibration and noise.

[0100] Combination Figure 5 and Figure 6 , Figure 8 and Figure 9In order to improve the sealing between each valve seat 500 and the valve cover 400, in some embodiments of this utility model, the valve cover 400 is provided with a first groove 450 communicating with the input channel 410, a second groove 460 communicating with the first channel 420, a third groove 470 communicating with the return channel 430, and a fourth groove 480 communicating with the second channel 440 along the axial direction of the valve cover 400 itself.

[0101] The first valve seat 510 is disposed on the first groove 450, and a first sealing ring 511 is also sleeved on the outside of the first valve seat 510, and the first sealing ring 511 is in sealing contact with the first groove 450.

[0102] The second valve seat 520 is disposed on the second groove 460, and a second sealing ring 521 is also sleeved on the outside of the second valve seat 520, and the second sealing ring 521 is sealed and abutted against the second groove 460.

[0103] The third valve seat is disposed on the third groove 470, and a third sealing ring is also sleeved on the outside of the third valve seat, and the third sealing ring is sealed and abutted against the third groove 470.

[0104] The fourth valve seat 540 is disposed in the fourth groove 480, and a fourth sealing ring 541 is also sleeved on the fourth valve seat 540, and the fourth sealing ring 541 is sealed and abutted against the fourth groove 480.

[0105] In addition, combined Figure 2 and Figure 6 In order to ensure that the first valve seat 510, the second valve seat 520, the third valve seat, and the fourth valve seat 540 can all abut against the valve panel 200 when the valve panel 200 rotates, thereby improving the sealing performance between each valve seat 500 and the valve panel 200, in some embodiments of this utility model, the three-position four-way rotary valve also includes multiple corrugated springs 900, including a first corrugated spring 910, a second corrugated spring 920, a third corrugated spring, and a fourth corrugated spring 940.

[0106] The first wave-shaped linear spring 910 is disposed in the first groove 450, and the first wave-shaped linear spring 910 abuts against the first valve seat 510 and the bottom wall of the first groove 450.

[0107] The second wave linear spring 920 is disposed in the second groove 460, and the second wave linear spring 920 abuts against the second valve seat 520 and the bottom wall of the second groove 460.

[0108] The third wave linear spring is disposed in the third groove 470, and the third wave linear spring abuts against the third valve seat and the bottom wall of the third groove 470.

[0109] The fourth wave-shaped spring 940 is disposed in the fourth groove 480, and the fourth wave-shaped spring 940 abuts against the fourth valve seat 540 and the bottom wall of the fourth groove 480.

[0110] Combination Figures 1 to 11 In an embodiment of this utility model, a diversion control console is also provided, which includes the aforementioned three-position four-way rotary valve and the diversion control console body.

[0111] The three-position four-way rotary valve is located on the main body of the flow distribution control console.

[0112] It is understandable that the flow control console provided by this utility model, since it includes the aforementioned three-position four-way rotary valve, inevitably possesses all the advantages of that rotary valve. That is, the flow control console can also be maintained and repaired simply by periodically replacing the valve panel 200, without frequently replacing the entire three-position four-way rotary valve, thereby extending the life of the three-position four-way rotary valve and reducing operating costs.

[0113] Combination Figures 1 to 11 In an embodiment of this utility model, a blowout preventer control system is also provided, which includes the aforementioned three-position four-way rotary valve, flow control console, and blowout preventer control system body.

[0114] The three-position four-way rotary valve and the flow control console are both located in the main body of the blowout preventer control system.

[0115] It is understandable that the blowout preventer control system provided by this utility model, since it includes the aforementioned three-position four-way rotary valve, inevitably possesses all the advantages of that rotary valve. That is, the blowout preventer control system can also be maintained and repaired simply by periodically replacing the valve panel 200, without frequently replacing the entire three-position four-way rotary valve, thereby extending the life of the three-position four-way rotary valve and reducing operating costs.

[0116] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0117] In the description of this specification, the use of terms such as "preferred embodiment," "another embodiment," "some embodiments," "other embodiments," or "specific example," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0118] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A three-position four-way rotary valve, characterized in that, include: The valve core is provided with a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, wherein the first flow channel and the second flow channel are interconnected, and the third flow channel and the fourth flow channel are interconnected. A valve panel is detachably disposed on the valve core. The valve panel is provided with a first through hole communicating with the first flow channel, a second through hole communicating with the second flow channel, a third through hole communicating with the third flow channel, and a fourth through hole communicating with the fourth flow channel. The valve body has a receiving cavity, and the valve core and the valve panel are disposed in the receiving cavity; The valve cover is equipped with an input channel, a first channel, a return channel, and a second channel; The valve seat includes a first valve seat, a second valve seat, a third valve seat, and a fourth valve seat. The first valve seat is connected to the input channel, the second valve seat is connected to the first channel, the third valve seat is connected to the return channel, and the fourth valve seat is connected to the second channel. A rotating shaft is connected to the valve core and drives the valve core to rotate; In the first state, the rotating shaft rotates in the positive direction, the first through hole engages with the first valve seat, the second through hole engages with the second valve seat, so that the input channel is connected to the first channel; the third through hole engages with the third valve seat, and the fourth through hole engages with the fourth valve seat, so that the second channel is connected to the return channel; In the second state, the rotating shaft rotates in the opposite direction, the first through hole engages with the second valve seat, the second through hole engages with the third valve seat, so that the first channel connects to the return channel; the third through hole engages with the fourth valve seat, the fourth through hole engages with the first valve seat, and the second channel connects to the input channel.

2. The three-position four-way rotary valve as described in claim 1, characterized in that, It also includes a thrust ball bearing, which is disposed in the receiving cavity. The thrust ball bearing abuts against the valve core along the axial direction of the valve core.

3. The three-position four-way rotary valve as described in claim 2, characterized in that, It also includes a drive assembly, which comprises a drive gear, a rack, and a drive cylinder. The drive gear is sleeved on the rotating shaft, and the rack meshes with the drive gear. The drive cylinder drives the rack to extend and retract, causing the drive gear to rotate.

4. The three-position four-way rotary valve as described in claim 3, characterized in that, The drive assembly also includes a drive handle. The first end of the drive handle is fixed to the rotating shaft, and the second end of the drive handle is a free end.

5. The three-position four-way rotary valve as described in claim 4, characterized in that, It also includes a sealing ring, which is sleeved on the rotating shaft. The sealing ring is located between the drive gear and the thrust ball bearing. The sealing ring is in sealing contact with the thrust ball bearing, the rotating shaft, and the receiving cavity.

6. The three-position four-way rotary valve as described in claim 5, characterized in that, It also includes a supporting copper sleeve, and the valve body is further provided with a through hole. The supporting copper sleeve is fixed to the through hole. The first end of the rotating shaft is connected to the valve core, and the second end of the rotating shaft is rotatably connected to the supporting copper sleeve.

7. The three-position four-way rotary valve as described in claim 6, characterized in that, The valve cover is provided with a first groove communicating with the input channel, a second groove communicating with the first channel, a third groove communicating with the return channel, and a fourth groove communicating with the second channel along its own axial direction. The first valve seat is disposed in the first groove, and a first sealing ring is also sleeved on the outside of the first valve seat, the first sealing ring sealingly abutting against the first groove. The second valve seat is disposed in the second groove, and a second sealing ring is also sleeved on the outside of the second valve seat, the second sealing ring sealingly abutting against the second groove. The third valve seat is disposed in the third groove, and a third sealing ring is also sleeved on the outside of the third valve seat, the third sealing ring sealingly abutting against the third groove. The fourth valve seat is disposed in the fourth groove, and a fourth sealing ring is also sleeved on the outside of the fourth valve seat, and the fourth sealing ring is sealed and abutted against the fourth groove.

8. The three-position four-way rotary valve as described in claim 7, characterized in that, It also includes multiple corrugated springs, including a first corrugated spring, a second corrugated spring, a third corrugated spring, and a fourth corrugated spring. The first corrugated spring is disposed in the first groove, and the first corrugated spring abuts against the first valve seat and the bottom wall of the first groove. The second corrugated spring is disposed in the second groove, and the second corrugated spring abuts against the second valve seat and the bottom wall of the second groove. The third wave-shaped spring is disposed in the third groove, and the third wave-shaped spring abuts against the third valve seat and the bottom wall of the third groove. The fourth wave-shaped spring is disposed in the fourth groove, and the fourth wave-shaped spring abuts against the fourth valve seat and the bottom wall of the fourth groove.

9. A traffic splitting control console, characterized in that, Includes the diversion control console body and the three-position four-way rotary valve as described in any one of claims 1 to 8. The three-position four-way rotary valve is located on the main body of the flow distribution control console.

10. A blowout preventer control system, characterized in that, Includes a flow control console, a blowout preventer control system body, and a three-position four-way rotary valve as described in any one of claims 1 to 9. The three-position four-way rotary valve and the diversion control console are both located on the main body of the blowout preventer control system.

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