Mixed transportation multi-shaft integrated reversing valve

Abstract

The utility model discloses a mixed conveying multi-shaft integrated reversing valve which comprises a valve body, a support, an actuator and a shaft core arranged in the valve body and connected with the output end of the actuator. A middle cavity is formed in the valve body, the shaft core is installed in the middle cavity, the shaft core is provided with a first flow channel and a second flow channel which are not communicated with each other, and the valve body is provided with a first inlet channel, a second inlet channel, a first outlet channel, a second outlet channel, a pump inlet channel and a pump outlet channel which are communicated with the middle cavity. The first flow channel only communicates the first inlet channel with the pump inlet channel, the second flow channel only communicates the pump outlet channel with the first outlet channel, and the first flow channel only communicates the second inlet channel with the pump inlet channel, and the second flow channel only communicates the pump outlet channel with the second outlet channel. The functions of the four sets of reversing valves are integrated, media between the two tank bodies are driven to circulate in a reciprocating mode, and the four-way reversing valve has the advantages of being simple and reliable in structure, lower in cost and higher in durability.

Description

TECHNICAL FIELD

[0001] The utility model relates to medium conveying device technical field, in particular to a kind of mixed transport multi-shaft integrated reversing valve. BACKGROUND

[0002] In oil exploitation, oil well production often accompanies with a certain amount of natural gas, water and solid particles. In order to achieve the purpose of reducing wellhead back pressure, increasing crude oil production, improving development economic benefits and achieving oil and gas closed conveying, oil and gas mixed transport technology is more and more widely used in oil and gas development.

[0003] Oil and gas mixed transport technology is a new technology that mixes and pressurizes crude oil production and directly transports it to the joint station. Compared with traditional oil production process, it can build less gas pipeline and reduce oil and gas separation equipment. For offshore oilfield, it can reduce platform area. Oil and gas mixed transport technology can not only make full use of energy, but also improve environmental conditions, and its economic and social benefits are very considerable.

[0004] The utility model with the application number CN202023352289.3 discloses a kind of multiphase flow mixed transport device and multiphase flow mixed transport application system, it includes first tank body, second tank body and reversing mechanism, reversing mechanism drives the liquid in first tank body and second tank body reciprocating circulation, so that the first tank body and second tank body alternately form vacuum suction cavity and / or compression discharge cavity, to realize the continuous mixing of liquid, gas or gas-liquid mixture Transport.In this structure, four groups of reversing valves need to be set, and the liquid in the first tank body is transported to the second tank body or the liquid in the second tank body is transported to the first tank body by controlling four groups of reversing valves through PLC, its reversing mechanism is relatively complex, the number of reversing valves is large, and the energy consumption of driving reversing valve action is large, so it is necessary to improve the structure. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of mixed transport multi-shaft integrated reversing valve, the utility model integrates four groups of reversing valve functions in one, to drive the reciprocating circulation of medium between two tank bodies, with the advantages of simple and reliable structure, lower cost and stronger durability.

[0006] To achieve the above object, the utility model provides the following technical scheme: mixed transportation multiaxis integrated reversing valve, including the valve body, the support of installing above the valve body, the actuator of setting on the support and the shaft core of rotation setting in the valve body and with the output of the actuator is connected, the valve body is equipped with the middle cavity, the shaft core rotation is installed in the middle cavity, the shaft core is equipped with the first flow channel and the second flow channel that do not communicate with each other, the valve body is equipped with with the middle cavity is linked together import channel no.

[0007] Through adopt above technical scheme, when the practical application, the pump import channel and pump export channel of this reversing valve are connected with the import and export of pump respectively, import channel no.

[0008] The utility model further sets up, the included angle of import channel no.

[0009] Through adopt above technical scheme, through the uniform setting specific included angle, can realize the accurate switching of two way channels.

[0010] The utility model further sets up, the shaft core outer periphery is equipped with with the middle cavity is linked together annular groove, the outlet of first flow channel with the annular groove is linked together.

[0011] Through adopt above technical scheme, no matter how the shaft core rotates, the outlet of first flow channel can keep with the middle cavity communication all the time.

[0012] The utility model further sets up, the shaft core includes upper valve core and lower valve core, first flow channel and second flow channel are arranged on upper valve core and lower valve core respectively, upper valve core and lower valve core are integrated structure or detachably connected together.

[0013] Through adopt above technical scheme, the shaft core structure strength of integrated structure is high, and the degree of durability is good, and the shaft core processing of split type structure is convenient, and is favorable to assembly.

[0014] The utility model further provides for, the detachable structure of upper valve core and lower valve core is the structure of key connection or mortise joint.

[0015] Through adopting above-mentioned technical scheme, it is two kinds of mode of split structure for shaft core, and the connecting structure is simple, and it is favorable to processing and assembly.

[0016] The utility model further provides for, be equipped with upper valve seat and lower valve seat in the middle cavity, upper valve seat and lower valve seat are respectively set in the outer periphery of upper valve core and lower valve core, the side of upper valve seat is equipped with the first through hole that communicates with import channel one and the second through hole that communicates with import channel two, the side of lower valve seat is equipped with the third through hole that communicates with export channel one and the fourth through hole that communicates with export channel two.

[0017] Through adopting above-mentioned technical scheme, by setting upper valve seat and lower valve seat, can guarantee to avoid the medium leakage when upper valve core and lower valve core act to drive a channel to close, guarantee the reliability of reversing structure.

[0018] The utility model further provides for, the outer periphery of upper valve core is equipped with the first sealing ring for constituting sealing cooperation with the inner wall in middle cavity in the position between import end and export end of first flow channel, the outer periphery of lower valve core is equipped with the second sealing ring for constituting sealing cooperation with the inner wall in middle cavity in the position above lower valve seat.

[0019] Through adopting above-mentioned technical scheme, effectively separate the part of upper valve core control on-off and the part of lower valve core control on-off in the middle cavity of valve body, avoid the occurrence of mutual leakage of upper and lower channel medium.

[0020] The utility model further provides for, the upper and lower ends of valve body are connected with upper valve cover and lower valve cover respectively, the upper and lower steps are equipped in the middle cavity, upper valve cover and lower valve cover are respectively pressed tightly on the upper step and lower step of upper valve seat and lower valve seat, upper valve cover and lower valve cover are respectively abutted tightly with the upper end of upper valve core and the lower end of lower valve core, the upper end of upper valve core is equipped with the connecting portion that is connected with the output end of actuator and is stretched to the outside of valve body.

[0021] Through adopting above-mentioned technical scheme, after installing upper valve cover and lower valve cover, the positioning installation of upper valve seat, lower valve seat, upper valve core and lower valve core can be realized, and assembling operation is very convenient.

[0022] The utility model further provides for, the upper end of upper valve cover is equipped with the packing groove that is coaxial with connecting portion, the packing groove is embedded with sealing packing, the upper end of upper valve cover is still locked and is connected with packing gland, and the lower end of packing gland is stretched into packing groove and presses tightly sealing packing in packing groove.

[0023] By adopting the technical scheme, good sealing between the upper valve cover and the shaft core connecting portion can be ensured, and leakage of internal medium from the gap between the two can be avoided.

[0024] The utility model further provides for, the actuator is electric actuator or hydraulic actuator or pneumatic actuator or hand self -operated actuator or manual actuator.

[0025] By adopting the technical scheme, different types of actuators can be configured according to actual application occasions. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 It is the whole structure schematic view of the utility model;

[0027] Fig. 2 It is the internal medium flow direction schematic view when the shaft core of the utility model is located at the first position;

[0028] Fig. 3 It is the internal medium flow direction schematic view when the shaft core of the utility model is located at the second position.

[0029] In the drawing:

[0030] 1, valve body;2, support;3, actuator;4, shaft core;5, cavity;6, first flow channel;7, second flow channel;8, inlet passage one;9, inlet passage two;10, outlet passage one;11, outlet passage two;12, pump inlet passage;13, pump outlet passage;14, annular groove;15, upper valve core;16, lower valve core;17, upper valve seat;18, lower valve seat;19, first via hole;20, second via hole;21, third via hole;22, fourth via hole;23, first sealing ring;24, second sealing ring;25, upper valve cover;26, lower valve cover;27, upper step;28, lower step;29, connecting portion;30, packing groove;31, sealing packing;32, packing gland. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] Embodiment: as attached Figs. 1-3The illustrated mixed transport multi-axis integrated reversing valve includes a valve body 1, a bracket 2 mounted above the valve body 1, an actuator 3 arranged on the bracket 2, and a shaft core 4 rotatably arranged in the valve body 1 and connected to the output end of the actuator 3; the valve body 1 is provided with a middle cavity 5, the shaft core 4 is rotatably arranged in the middle cavity 5, the shaft core 4 is provided with a first flow channel 6 and a second flow channel 7 which are not connected to each other, the valve body 1 is provided with an inlet channel one 8, an inlet channel two 9, an outlet channel one 10, an outlet channel two 11, a pump inlet channel 12 and a pump outlet channel 13 which are connected to the middle cavity 5, when the shaft core 4 operates, the first flow channel 6 only connects the inlet channel one 8 and the pump inlet channel 12, the second flow channel 7 only connects the pump outlet channel 13 and the outlet channel one 10, and the first flow channel 6 only connects the inlet channel two 9 and the pump inlet channel 12, and the second flow channel 7 only connects the pump outlet channel 13 and the outlet channel two 11. In actual application, the pump inlet channel 12 and the pump outlet channel 13 of the reversing valve are respectively connected to the inlet and outlet of the pump, the inlet channel one 8 and the outlet channel one 10 are respectively connected to the first tank body, the inlet channel two 9 and the outlet channel two 11 are respectively connected to the second tank body, when the medium flow direction needs to be switched, the shaft core 4 only needs to be rotated to the first position or the second position by the actuator 3 to realize the switching of the medium flow direction between the first tank body and the second tank body. Compared with the prior art scheme of using four reversing valves, the design integrates the functions of four reversing valves into one to drive the reciprocating circulation of the medium between the two tank bodies, and has the advantages of simple and reliable structure, lower cost and stronger durability.

[0033] The angle between the extension directions of the inlet channel one 8 and the inlet channel two 9 and the angle between the extension directions of the outlet channel one 10 and the outlet channel two 11 are the same, and the angle of the embodiment is 90°. The first flow channel 6 has two inlet ends and one outlet end, and the two inlet ends are also arranged at an angle of 90°. The second flow channel 7 has one inlet end and two outlet ends, and the two outlet ends are also arranged at an angle of 90°. By uniformly setting a specific angle, accurate switching of two channels can be realized.

[0034] As shown in the accompanying drawings, Fig. 1 The shaft core 4 is provided with an annular groove 14 which is connected to the middle cavity 5, and the outlet end of the first flow channel 6 is connected to the annular groove 14. Regardless of the rotation of the shaft core 4, the outlet end of the first flow channel 6 can always be connected to the middle cavity 5.

[0035] As shown in the accompanying drawings, Fig. 1As shown, the shaft core 4 includes an upper valve core 15 and a lower valve core 16, the first flow channel 6 and the second flow channel 7 are arranged on the upper valve core 15 and the lower valve core 16 respectively, and the upper valve core 15 and the lower valve core 16 are in an integrated structure or detachably connected together. The shaft core 4 in the integrated structure has high structural strength and good durability, and the shaft core 4 in the split structure is convenient to process and beneficial to assembly.

[0036] For the split structure of the shaft core 4, the detachable structure of the upper valve core 15 and the lower valve core 16 can be a key connection or a mortise joint structure, or other detachable structures.

[0037] As shown in the accompanying drawings, Fig. 1 As shown, the upper valve core 15 and the lower valve core 16 are arranged in the middle cavity 5, the upper valve core 15 and the lower valve core 16 are respectively sleeved on the outer periphery of the upper valve core 15 and the lower valve core 16, and the outer circular surface of the upper valve core 15 and the outer circular surface of the lower valve core 16 are in close contact with the inner circular surface of the middle cavity 5, the side of the upper valve core 17 is provided with a first through hole 19 communicated with the inlet channel one 8 and a second through hole 20 communicated with the inlet channel two 9, and the side of the lower valve core 18 is provided with a third through hole 21 communicated with the outlet channel one 10 and a fourth through hole 22 communicated with the outlet channel two 11. The upper valve core 17 and the lower valve core 18 are both sleeve structures, and by arranging the upper valve core 17 and the lower valve core 18, it can be ensured that the medium leakage does not occur when the upper valve core 15 and the lower valve core 16 drive a certain channel to close, and the reliability of the reversing structure is ensured.

[0038] As shown in the accompanying drawings, Fig. 1 As shown, the outer periphery of the upper valve core 15 is provided with a first sealing ring 23 corresponding to the position between the inlet end and the outlet end of the first flow channel 6 for sealing cooperation with the inner wall of the middle cavity 5, and the outer periphery of the lower valve core 16 is provided with a second sealing ring 24 corresponding to the position above the lower valve core 18 for sealing cooperation with the inner wall of the middle cavity 5. This design can effectively separate the part controlled by the upper valve core 15 and the part controlled by the lower valve core 16 in the middle cavity 5 of the valve body 1, so as to avoid the mutual leakage of the upper channel and the lower channel.

[0039] As shown in the accompanying drawings, Fig. 1As shown, the upper and lower ends of the valve body 1 are respectively connected with upper valve cover 25 and lower valve cover 26 by screws, and sealing rings are arranged between the upper valve cover 25 and the middle cavity 5 and between the lower valve cover 26 and the middle cavity 5. The middle cavity 5 is provided with an upper step 27 and a lower step 28, and the upper valve cover 25 and the lower valve cover 26 press the upper valve seat 17 and the lower valve seat 18 on the upper step 27 and the lower step 28 respectively. The upper valve cover 25 and the lower valve cover 26 abut against the upper end of the upper valve core 15 and the lower end of the lower valve core 16 respectively. The upper end of the upper valve core 15 is provided with a connecting part 29 extending through the upper valve cover 25 to the outside of the valve body 1 and connected with the output end of the actuator 3. After the upper valve cover 25 and the lower valve cover 26 are installed, the positioning and installation of the upper valve seat 17, the lower valve seat 18, the upper valve core 15 and the lower valve core 16 can be realized, and the assembly operation is very convenient. The upper valve seat 17 and the lower valve seat 18 can be assembled by interference fitting.

[0040] As shown in the accompanying drawings, Fig. 1 The upper end of the upper valve cover 25 is provided with a packing groove 30 coaxial with the connecting part 29, and a sealing packing 31 is embedded in the packing groove 30. The upper end of the upper valve cover 25 is also connected with a packing gland 32 by screw locking. The lower end of the packing gland 32 extends into the packing groove 30 to press the sealing packing 31 tightly in the packing groove 30. This design can ensure good sealing between the upper valve cover 25 and the connecting part 29 of the shaft core 4, and prevent internal medium from leaking from the gap between them.

[0041] In addition, the actuator 3 is an electric actuator (motor driven), a hydraulic actuator (hydraulic cylinder driven), a pneumatic actuator (air cylinder driven), a hand self-operated actuator or a manual actuator (hand wheel). Different types of actuators 3 can be configured according to actual application occasions.

[0042] Working principle: in actual application, the pump inlet channel 12 and the pump outlet channel 13 of the reversing valve are respectively connected with the inlet and outlet of the pump, the inlet channel 8 and the outlet channel 10 are respectively connected with the first tank body, and the inlet channel 9 and the outlet channel 11 are respectively connected with the second tank body.

[0043] When the pump is running, if the valve core is in the first position, the liquid in the first tank body flows through the inlet channel 8, the first flow channel 6, the pump inlet channel 12, the pump, the pump outlet channel 13, the second flow channel 7 and the outlet channel 10 to the second tank body.

[0044] By driving the valve core to the second position by the actuator 3, the liquid in the second tank body flows through the inlet channel 9, the first flow channel 6, the pump inlet channel 12, the pump, the pump outlet channel 13, the second flow channel 7 and the outlet channel 11 to the first tank body.

[0045] In this way, the medium between the two tank bodies is driven to reciprocate and circulate.

Claims

1. A mixed transport multi-axis integrated reversing valve, comprising a valve body (1), a bracket (2) mounted above the valve body (1), an actuator (3) arranged on the bracket (2), and a shaft core (4) rotatably arranged in the valve body (1) and connected to an output end of the actuator (3); characterized in that: The valve body (1) is provided with a middle cavity (5), the shaft core (4) is rotatably installed in the middle cavity (5), the shaft core (4) is provided with a first flow channel (6) and a second flow channel (7) which are not communicated with each other, the valve body (1) is provided with an inlet channel one (8), an inlet channel two (9), an outlet channel one (10), an outlet channel two (11), a pump inlet channel (12) and a pump outlet channel (13) which are communicated with the middle cavity (5), when the shaft core (4) operates, the first flow channel (6) only communicates the inlet channel one (8) with the pump inlet channel (12), the second flow channel (7) only communicates the pump outlet channel (13) with the outlet channel one (10), and the first flow channel (6) only communicates the inlet channel two (9) with the pump inlet channel (12), the second flow channel (7) only communicates the pump outlet channel (13) with the outlet channel two (11).

2. The mixed-flow multi-axis integrated shuttle valve of claim 1, wherein: The included angle of the extension directions of the inlet channel one (8) and the inlet channel two (9) is the same as the included angle of the extension directions of the outlet channel one (10) and the outlet channel two (11).

3. The mixed-flow multi-axis integrated shuttle valve of claim 1, wherein: The outer periphery of the shaft core (4) is provided with an annular groove (14) which is communicated with the middle cavity (5), and the outlet end of the first flow channel (6) is communicated with the annular groove (14).

4. The mixed-circulation multi-axis integrated directional valve according to claim 1, characterized in that: The shaft core (4) comprises an upper valve core (15) and a lower valve core (16), the first flow channel (6) and the second flow channel (7) are arranged on the upper valve core (15) and the lower valve core (16) respectively, and the upper valve core (15) and the lower valve core (16) are in an integrated structure or are detachably connected together.

5. The mixed-flow multi-axis integrated shuttle valve of claim 4, wherein: The detachable structure of the upper valve core (15) and the lower valve core (16) is a key connection or a tenon and mortise structure.

6. The mixed-circulation multi-axis integrated shuttle valve of claim 4, wherein: The middle cavity (5) is provided with an upper valve seat (17) and a lower valve seat (18), the upper valve seat (17) and the lower valve seat (18) are respectively sleeved on the outer periphery of the upper valve core (15) and the lower valve core (16), the upper valve seat (17) is provided with a first through hole (19) which is communicated with the inlet channel one (8) and a second through hole (20) which is communicated with the inlet channel two (9) on the side, and the lower valve seat (18) is provided with a third through hole (21) which is communicated with the outlet channel one (10) and a fourth through hole (22) which is communicated with the outlet channel two (11) on the side.

7. The mixed-circulation multi-axis integrated shuttle valve of claim 4, wherein: The outer periphery of the upper valve core (15) is provided with a first sealing ring (23) which is used for sealing cooperation with the inner wall of the middle cavity (5) at the position between the inlet end and the outlet end of the first flow channel (6), and the outer periphery of the lower valve core (16) is provided with a second sealing ring (24) which is used for sealing cooperation with the inner wall of the middle cavity (5) at the position above the lower valve seat (18).

8. The mixed-circulation multi-axis integrated shuttle valve of claim 4, wherein: The upper and lower ends of the valve body (1) are respectively connected with an upper valve cover (25) and a lower valve cover (26), the middle cavity (5) is provided with an upper step (27) and a lower step (28), the upper valve cover (25) and the lower valve cover (26) respectively press the upper valve seat (17) and the lower valve seat (18) on the upper step (27) and the lower step (28), the upper valve cover (25) and the lower valve cover (26) are respectively abutted with the upper end of the upper valve core (15) and the lower end of the lower valve core (16), the upper end of the upper valve core (15) is provided with a connecting part (29) penetrating through the upper valve cover (25) and extending to the outside of the valve body (1) and connected with the output end of the actuator (3).

9. The mixed-flow multi-axis integrated shuttle valve of claim 8, wherein: The upper end of the upper valve cover (25) is provided with a packing groove (30) coaxial with the connecting part (29), the packing groove (30) is embedded with a sealing packing (31), and the upper end of the upper valve cover (25) is further locked and connected with a packing gland (32), the lower end of the packing gland (32) extends into the packing groove (30) and presses the sealing packing (31) in the packing groove (30).

10. The mixed-circulation multi-axis integrated shuttle valve of claim 1, wherein: The actuator (3) is an electric actuator, a hydraulic actuator, a pneumatic actuator, a hand-automatic actuator or a manual actuator.

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