Multi-port metering valves and oil production systems

Abstract

The present disclosure relates to a multi-way metering valve and an oil production system, wherein the multi-way metering valve includes a valve body and a valve core assembly, wherein the valve body has an inner cavity, and at least two liquid inlets are arranged in the circumferential direction of the valve body side wall; the valve body is provided with a collecting and transporting port connected to the inner cavity, and the liquid entering the inner cavity through the at least two liquid inlets is configured to flow out through the collecting and transporting port; the valve core assembly is provided with a metering channel, and the valve core assembly is configured to rotate in the inner cavity until the metering channel is docked with any one of the liquid inlets; the liquid flowing out of the liquid inlet is configured to flow out through the metering channel. The multi-way metering valve disclosed in the present disclosure can both perform selective metering and collect and transport liquid from multiple liquid inlets, thereby improving the practical value of the multi-way metering valve, and there is no need to specially open a metering manifold to install the multi-way metering valve, thereby reducing the floor space and making the structure simple.

Description

Technical Field

[0001] The present invention relates to the technical field of oil well metering equipment, and in particular to a multi-way metering valve and an oil production system. Background Art

[0002] During oil field exploitation, multiple oil pipelines are usually required to transport liquids extracted from different oil wells, and the amount of liquid produced needs to be measured during this process.

[0003] In the prior art, a control valve is usually installed in the oil well metering manifold to selectively connect the separator and a certain oil well manually or automatically so that the liquid from the selected oil well flows into the separator. An automatic liquid level acquisition system is configured on the separator to automatically measure the liquid production of a single well.

[0004] Obviously, the separator of this structure has the function of automatically measuring the liquid production of a single well, but its practical value is low, it occupies too much space, has a complex structure, and is inconvenient to install, operate, and maintain. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the present disclosure provides a multi-way metering valve and an oil production system using the multi-way metering valve.

[0006] According to a first aspect of the present disclosure, there is provided a multi-way metering valve, characterized in that it comprises:

[0007] A valve body, wherein the valve body has an inner cavity, and at least two liquid inlets are arranged in the circumferential direction of the side wall of the valve body; the valve body is provided with a collecting and transporting port communicating with the inner cavity, and the liquid entering the inner cavity through the at least two liquid inlets is configured to flow out through the collecting and transporting port;

[0008] A valve core assembly is provided with a metering channel, and the valve core assembly is configured to rotate in the inner cavity until the metering channel is docked with any one of the liquid inlets; the liquid flowing out of the liquid inlet is configured to flow out through the metering channel.

[0009] In one embodiment of the present disclosure, the valve core assembly includes a valve stem coaxial with and rotatably connected to the valve body, and a valve core extending radially outward from the valve stem; the inlet of the metering channel is arranged at the free end of the valve core.

[0010] In one embodiment of the present disclosure, it also includes a docking portion, the inlet of the metering channel extends to the outside of the docking portion; the docking portion is connected to the free end of the valve core through a first elastic device; the docking portion is configured to be pre-pressed between the valve core and the inner wall of the valve body through the first elastic device.

[0011] In one embodiment of the present disclosure, the docking portion includes a sealing ring surrounding the inlet position; when the inlet and the liquid inlet are docked together, the sealing ring is configured to be pre-pressed at the position of the liquid inlet under the action of the first elastic device.

[0012] In one embodiment of the present disclosure, a guide portion is rotatably connected to the docking portion, a matching portion is provided on the inner wall of the valve body, and the guide portion is configured to be guided and matched with the matching portion.

[0013] In one embodiment of the present disclosure, a positioning groove is provided in the matching portion at a position corresponding to the liquid inlet, and the depth of the positioning groove in the radial direction is greater than the depth of the matching portion;

[0014] When the guide portion enters the positioning groove along the guide groove, the sealing ring is configured to be pre-pressed on the inner wall of the valve body under the action of the first elastic device to seal the liquid inlet and the inlet;

[0015] When the guide portion moves from the positioning groove to the matching portion, a gap is formed between the sealing ring and the inner wall of the valve body.

[0016] In one embodiment of the present disclosure, a scraper ring is further included which surrounds the outer side of the sealing ring, and the scraper ring is connected to the docking portion through a second elastic device; the elastic force of the second elastic device is smaller than the elastic force of the first elastic device;

[0017] When the guide portion moves from the positioning groove to the matching portion, the scraper ring is configured to be pre-pressed on the inner wall of the valve body through the second elastic device;

[0018] When the guide portion enters the positioning groove along the matching portion, the scraper ring is configured to squeeze the second elastic device so that the sealing ring contacts and matches with the inner wall of the valve body.

[0019] In one embodiment of the present disclosure, the guide portion is a roller, the matching portion is a guide groove, and the roller is configured to roll in the guide groove.

[0020] In one embodiment of the present disclosure, a metering pipe is provided on the valve body, a first end of the metering pipe extends outside the valve body, and a second end extends into the inner cavity of the valve body; one end of the valve stem is rotatably connected to the second end of the metering pipe, and an outlet of the metering channel is connected to the second end of the metering pipe.

[0021] In one embodiment of the present disclosure, a connector connected to the liquid inlet is provided on the outer wall of the valve body, the connector is configured to be connected to an external pipeline, and the connector is configured to be connected to the outer wall of the valve body by a spiral.

[0022] In one embodiment of the present disclosure, a sewage outlet connected to the inner cavity is also provided on the valve body; it also includes a ball collecting device connected to the sewage outlet, and the cleaning ball flowing out of the liquid inlet is configured to enter the ball collecting device through the inner cavity and the sewage outlet.

[0023] In one embodiment of the present disclosure, the ball collecting device includes a hollow inner cavity surrounded by an external shell, and a separation core rotatably connected to the hollow inner cavity, and also includes a sewage pipeline connected to the hollow inner cavity; the separation core is configured to perform solid-liquid separation during rotation, and the separated liquid is configured to be discharged through the sewage pipeline.

[0024] In one embodiment of the present disclosure, the sewage outlet is arranged at the bottom of the valve body; the collecting and transporting port is arranged at the side wall of the valve body, and the collecting and transporting port is also provided with a blocking portion, and the blocking portion is configured to allow liquid to flow out.

[0025] In one embodiment of the present disclosure, a gate valve is further included, and the gate valve is configured to close or open the sewage outlet.

[0026] According to a second aspect of the present disclosure, an oil production system is further provided, characterized in that it comprises the above-mentioned multi-way metering valve, and the liquid inlets of the multi-way metering valve are respectively connected to the corresponding oil pipelines.

[0027] One beneficial effect of the present disclosure is that the multi-way metering valve of the present disclosure drives the metering channel to rotate through the valve core assembly to selectively meter any one of the liquid inlets, while the other liquid inlets can continue to take in liquid and discharge it from the collecting and transporting port. Under this coordination, the multi-way metering valve of the present disclosure can both perform selective metering and collect and transport liquid from multiple liquid inlets, thereby improving the practical value of the multi-way metering valve, and there is no need to specially open a metering manifold to install the multi-way metering valve, thereby reducing the floor space and making the structure simpler.

[0028] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0030] Figure 1 is a structural schematic diagram of a multi-way metering valve provided in one embodiment of the present disclosure;

[0031] Figure 2 is an axial view of an assembly of a multi-way metering valve and a ball receiving device provided by an embodiment of the present disclosure;

[0032] Figure 3 is a partially enlarged cross-sectional view of a multi-way metering valve provided by an embodiment of the present disclosure at one angle;

[0033] Figure 4 is a partial enlarged view of a multi-way metering valve provided by an embodiment of the present disclosure from another angle;

[0034] Figure 5 is a partial enlarged view of a valve core assembly provided in one embodiment of the present disclosure;

[0035] Figure 6 It is a structural schematic diagram of an assembly of a multi-way metering valve and a ball collecting device provided in another embodiment of the present disclosure.

[0036] Figures 1 to 6 The one-to-one correspondence between the component names and the reference numerals is as follows:

[0037] 1-valve body, 11-liquid inlet, 12-collecting and transporting port, 13-positioning groove, 14-guide groove, 15-metering pipeline, 16-connector, 161-bolt, 17-drainage outlet, 18-gate valve, 181-valve plate, 182-valve stem, 183-handwheel, 20-docking part, 21-metering channel, 22-valve stem, 23-valve core, 24-first elastic device, 25-sealing ring, 26-scraping ring, 27-second elastic device, 28-roller, 29-fastening ring, 3-ball collecting device, 31-external shell, 32-separation inner core, 33-drainage pipeline, 34-ball outlet pipe, 35-cover plate. DETAILED DESCRIPTION

[0038] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless otherwise specifically stated.

[0039] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0040] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0041] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] The specific embodiments of the present disclosure are described below in conjunction with the accompanying drawings.

[0043] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0044] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0045] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0046] The present disclosure provides a multi-way metering valve, which can cooperate with a metering device to measure the amount of liquid produced by an oil well. The multi-way metering valve provided by the present disclosure is highly practical and can also be used to selectively measure the liquid flow discharged from any one of a plurality of liquid pipelines.

[0047] The multi-way metering valve disclosed herein comprises a valve body and a valve core assembly, wherein the valve body has an inner cavity, and at least two liquid inlets are arranged in the circumferential direction of the side wall of the valve body, and the liquid inlets can be connected to an external liquid pipeline; a collecting and transporting port connected to the inner cavity is arranged on the valve body, and the liquid entering the inner cavity through the at least two liquid inlets is configured to flow out through the collecting and transporting port.

[0048] The valve core assembly is provided with a metering channel, and the valve core assembly is configured to rotate in the inner cavity until the metering channel is docked with any liquid inlet, and the liquid flowing out of the liquid inlet is configured to flow out through the metering channel. The outflow end of the metering channel can be connected to a metering device to achieve metering of the liquid flowing out of the liquid inlet.

[0049] Under normal oil production conditions, the liquid from at least two liquid inlets flows out from the gathering and transportation port. When the liquid from one of the liquid inlets needs to be measured, the valve core assembly rotates to make the metering channel dock with the liquid inlet to be measured, and the liquid flowing in from the liquid inlet is introduced into the metering device to measure its liquid output. At the same time, the liquid from other liquid inlets can still be discharged from the gathering and transportation port, and the metering and gathering processes will not interfere with each other.

[0050] It can be seen that by controlling the rotation of the valve core of the multi-way metering valve, the metering channel can be connected to a liquid inlet that needs to be metered, and the metering channel can guide the liquid into the metering device, and the metering device measures the amount of liquid flowing in from the liquid inlet. At the same time, other liquid inlets are still connected to the collecting and delivery ports to discharge liquid normally, which has the functions of collecting and outputting liquid and selectively connecting the oil well and the metering device. Compared with the prior art that uses an external metering delivery pipe to connect the oil well and the metering device, its metering channel is integrated in the valve body, which reduces the number of components, simplifies the structure and the installation space it occupies.

[0051] For ease of understanding, refer to Figures 1 to 6 , the specific structure and working principle of the multi-way metering valve disclosed in the present invention are described in detail in combination with several embodiments.

[0052] refer to Figure 1 and Figure 2 In one embodiment of the present disclosure, the multi-way metering valve includes a valve body 1 , a valve core assembly and a collecting and transporting port 12 .

[0053] At least two liquid inlets 11 are provided on the side wall of the valve body 1, and the at least two liquid inlets 11 are arranged along the circumferential direction of the side wall of the valve body 1. One port of the liquid inlet 11 faces the outside of the valve body 1 and is used to connect with an external liquid infusion pipeline, and the other port of the liquid inlet 11 is communicated with the inner cavity of the valve body 1, so that the liquid in the external liquid infusion pipeline flows into the inner cavity of the multi-way metering valve.

[0054] For example, in this embodiment, sixteen liquid inlets 11 may be provided on the valve body 1, and the sixteen liquid inlets 11 are evenly arranged in the circumferential direction at the same height of the side wall of the valve body 1, and each liquid inlet 11 may be connected to a liquid infusion pipeline, and the liquid enters the inner cavity of the valve body 1 through the liquid infusion pipeline 21 through the liquid inlet 11. Those skilled in the art should know that the number of liquid inlets 11 is related to the specifications of the multi-way metering valve or the actual application scenario of the multi-way metering valve, and the number of liquid inlets 11 can be set according to actual conditions, and this document does not limit this.

[0055] Continue to refer Figure 1 The inner cavity of the valve body 1 can be constructed as an umbrella-shaped structure, and the diameter of the side wall of the valve body 1 extending downward from the liquid inlet 11 decreases successively. This structure is more conducive to the flow of liquid out of the liquid inlet 11 in the inner cavity of the valve body 1 under the action of gravity.

[0056] refer to Figure 2 The valve body 1 is provided with a collection and delivery port 12 connected to the inner cavity, and the liquid entering the inner cavity of the valve body 1 can flow out from the collection and delivery port 12. The outer side of the collection and delivery port 12 can be connected to a liquid manifold, and the liquid manifold transports the liquid to a designated location.

[0057] In detail, along the vertical downward direction, the inner cavity of the valve body 1 includes an upper cylindrical section, an intermediate conical section and a lower cylindrical section which are arranged in sequence. Sixteen liquid inlets 11 are arranged in the upper cylindrical section at intervals in the circumferential direction. The collecting and transporting port 12 is opened in the intermediate conical section. A sewage outlet 17 is opened below the lower cylindrical section. The sewage outlet 17 is used to connect to the sewage discharge device. Under normal liquid production conditions, the sewage outlet 17 is in a blocked state.

[0058] The multiple liquid inlets 11 guide the liquids in the multiple oil wells into the inner cavity of the upper cylindrical section, and then converge to the collecting and transporting port 12 along the inner wall of the middle conical section, and finally output through the collecting and transporting port 12. The valve body 1 of this structure is very convenient for setting multiple liquid inlets 11, and can converge and concentrate the liquids input by these liquid inlets 11 at the collecting and transporting port 12, and the design is ingenious and reasonable.

[0059] Continue to see Figure 1 A valve core assembly is also provided in the valve cavity, and the valve core assembly is provided with a metering channel 21. The valve core assembly is configured to rotate in the inner cavity of the valve body 1 until the metering channel 21 is docked with any one of the liquid inlets 11, and the liquid entering from the liquid inlet 11 will enter the metering channel 21.

[0060] In practical applications, reference Figure 1 and Figure 2 Each liquid inlet 11 can flow liquid into the inner cavity of the valve body 1, and the liquid flows out from the collecting port 12 through the inner cavity of the valve body 1; when it is necessary to meter the liquid in a certain liquid inlet 11, the valve core assembly can be rotated to make the metering channel 21 dock with the liquid inlet 11, and the liquid in the liquid inlet 11 will flow into the metering channel 21, and the liquid in the remaining liquid inlets 11 will continue to flow into the inner cavity of the valve body 1 and flow out from the collecting port 12.

[0061] Continue to refer Figure 1 The valve core assembly includes a valve stem 22 and a valve core 23. The valve stem 22 rotates along the central axis of the valve body 1 and is connected to the valve cover of the valve body 1. The valve core 23 extends radially outward from the valve stem 22 to the corresponding position of the liquid inlet 11 on the side wall of the valve body 1. The inlet of the metering channel 21 is set at the free end of the valve core 23. Under the action of external force, the valve stem 22 will rotate along the central axis of the valve body 1, and the valve core 23 and the valve stem 22 will rotate synchronously to the corresponding position where the inlet of the metering channel 21 is connected to the liquid inlet 11.

[0062] In actual applications, in order to realize the rotation of the valve stem 22, one end of the valve stem 22 connected to the valve cover can also extend out of the outside of the valve cover. The valve stem 22 located outside the valve cover can be connected to the output end of the driving device or any device commonly used in the art, such as a handwheel, which can drive the valve stem 22 to rotate, thereby facilitating the selective docking of the entrance of the metering channel 21 in the valve core 23 with the liquid inlet 11.

[0063] Considering that during the rotation of the valve core 23 , the valve core 23 of the valve core assembly directly contacts the valve body 1 , which may cause wear on both.

[0064] refer to Figure 3In one embodiment of the present disclosure, the valve core assembly further includes a docking portion 20, one end of which is docked with the liquid inlet 11, and the other end is docked with the metering channel 21, and the inlet of the metering channel 21 extends to the outside of the docking portion 20. Specifically, the docking portion 20 has a channel, and the docking portion 20 is docked with the free end of the valve core 23. It can be understood that one end of the channel is docked with the inlet of the metering channel 21, and the other end faces the side wall of the valve body 1, thereby extending the inlet of the metering channel 21 to the outside of the docking portion 20.

[0065] The free end of the valve core can be constructed as a groove that allows the docking part to extend into, and one end of the docking part is in contact with the inner wall of the groove, and can move in the groove along the central axis direction of the valve core 23. A first elastic device 24 can also be provided between the valve core 23 and the docking part, and the docking part 20 is connected to the free end of the valve core 23 through the first elastic device 24. The docking part 20 is pre-pressed between the valve core 23 and the inner wall of the valve body 1 through the first elastic device 24. For example, the first elastic device 24 can be a spring, and at least two springs can be provided between the docking part 20 and the valve core 23.

[0066] It can be understood that one end of the docking portion 20 is against the inner wall of the valve body, and the other end applies pressure to the first elastic device 24, so that the first elastic device 24 has elastic potential energy and obtains elastic force. When the inlet of the metering channel 21 is docked with any one of the liquid inlets 11 on the valve body 1, under the action of the first elastic device 24, the inlet of the metering channel 21 and the liquid inlet 11 are tightly attached to each other to prevent leakage.

[0067] In order to increase the sealing effect between the entrance of the metering channel 21 and the liquid inlet 11, refer to Figure 3 In one embodiment of the present disclosure, a sealing ring 25 is also provided at the position of the docking portion 20 surrounding the entrance of the metering channel 21. When the entrance of the metering channel 21 is docked with the liquid inlet 11, the sealing ring 25 is pre-pressed at the position of the liquid inlet 11 under the action of the first elastic device 24.

[0068] It can be understood that when the entrance of the metering channel 21 and the liquid inlet 11 are connected together, the sealing ring 25 will block the outer edge of the metering channel 21. At the same time, under the action of the first elastic device 24, the entrance of the metering channel 21 and the liquid inlet 11 will squeeze the sealing ring 25. The sealing ring 25 can be made of soft rubber material and can be deformed when squeezed, so that there is no gap between the entrance of the metering channel 21 and the liquid inlet 11, thereby improving the sealing effect and further preventing leakage.

[0069] In the process of the valve stem 22 driving the valve core 23 to rotate, the docking portion 20 moves synchronously with the valve core 23. In order to ensure the stability of the rotation process and the accuracy of the docking, in one embodiment of the present disclosure, Figure 3 A guide portion is rotatably connected to the docking portion 20 , and a matching portion is provided at a corresponding position on the inner wall of the valve body 1 , and the matching portion is configured to match with the guide portion.

[0070] In detail, the matching portion can be arranged along the circumferential direction of the inner wall of the valve body 1. Under the cooperation of the guide portion and the matching portion, when the valve core 23 rotates, the valve core 23 will move along the matching portion in the circumferential direction through the guide portion to the position where the metering channel 21 is connected with the liquid inlet 11 on the valve body 1. The position of the matching portion and the position of the guide portion are determined to achieve that the inlet of the metering channel 21 can be accurately connected with the liquid inlet 11.

[0071] It should be noted that the matching portion can be constructed as a boss protruding from the inner wall of the valve body 1, or as a groove sunken to a certain depth into the inner wall of the valve body 1, that is, it can achieve the positioning and guiding functions of the matching guide portion.

[0072] It should be noted that the matching portion and the guiding portion of the present disclosure are matched grooves and bosses, wherein one of the groove and the boss is arranged on the docking portion 20 , and the other is arranged on the inner wall of the valve body 1 .

[0073] In one embodiment of the present disclosure, reference Figure 3 and Figure 4 A positioning groove 13 is provided at the position of the matching portion corresponding to the liquid inlet 11, and the depth of the positioning groove 13 on the valve body 1 is greater than the depth of the matching portion. The positioning groove 13 can be constructed into a shape that matches the guide portion, allowing the guide portion to extend therein. Since the position of the positioning groove 13 is determined, under the cooperation of the guide portion and the positioning groove 13, the metering channel 21 is accurately connected to the liquid inlet 11.

[0074] In one embodiment, reference Figure 4 When the guide portion reaches the position of the positioning groove 13 along the matching portion, the guide portion will enter the positioning groove 13 under the action of the elastic force of the first elastic device 24, and the sealing ring 25 will be pressed against the inner wall of the valve body 1 under the action of the first elastic device 24 to seal the entrance of the metering channel 21 and the liquid inlet 11, thereby improving the positioning and docking effect and the sealing effect.

[0075] In another embodiment, reference Figure 4 When the guide portion moves from the positioning groove 13 to the matching portion, the sealing ring 25 leaves the inner wall of the valve body 1 and there is a certain gap between the sealing ring 25 and the valve body 1 .

[0076] It can be understood that when the guide portion is located in the positioning groove 13, the sealing ring 25 will contact the inner wall of the valve body 1 under the action of the first elastic device 24; when the guide portion moves from the positioning groove 13 to the matching portion, since the inner wall depth of the matching portion is less than the inner wall depth of the positioning groove 13, the inner wall of the valve body 1 will squeeze the guide portion, so that the first elastic device 24 is compressed, and the sealing ring 25 also moves in the direction of the valve stem 22 together with the guide portion with the compression of the first elastic device 24, so that the sealing ring 25 leaves the inner wall of the valve body 1 and has a certain gap with the inner wall of the valve body 1. In this way, the guide portion contacts the inner wall of the valve body 1 during the rotation of the valve core 23 in the matching portion, and the sealing ring 25 contacts the valve body 1 only after the guide portion reaches the positioning groove 13, so as to prevent the inner wall of the valve body 1 from causing wear to the sealing ring 25 during the rotation process, thereby extending the service life of the sealing ring.

[0077] refer to Figure 3 In one embodiment of the present disclosure, the docking portion 20 further includes a scraper ring 26 surrounding the outer side of the sealing ring 25, and the scraper ring 26 is connected to the docking portion 20 through a second elastic device 27. For example, when the guide portion and the matching portion cooperate, the scraper ring 26 is tightly attached to the inner wall of the valve body 1 under the elastic force of the second elastic device 27, and in this case, only the scraper ring 26 and the guide portion are in contact with the inner wall of the valve body 1, and the sealing ring 25 is not in contact with the inner wall of the valve body 1, and the scraper ring 26 can be made of a rigid material.

[0078] refer to Figure 4 When the valve core assembly rotates relative to the valve body 1, before reaching the conducting position of the metering channel 21 and the liquid inlet 11, the valve core assembly moves along the matching portion of the valve body 1 through the guide portion under the elastic force of the first elastic device 24. During this process, there is a preset gap between the sealing ring 25 and the inner wall of the valve body 1 to prevent the sealing ring 25 from sliding with the valve body for a long time and causing wear. At the same time, the scraper ring 26 is pressed against the inner wall of the valve body 1 under the elastic force of the second elastic device 27.

[0079] Continue to refer Figure 4 When the valve core assembly rotates relative to the valve body 1 until its guide portion enters the positioning groove 13, since the elastic force of the second elastic device 27 is less than the elastic force of the first elastic device 24, the docking portion 20 overcomes the elastic force of the second elastic device 27 under the elastic force of the first elastic device 24, and drives the sealing ring 25 to move toward the inner wall of the valve body 1 until the sealing ring 25 is sealed and connected with the inner wall of the valve body 1. At the same time, the scraper ring 26 is squeezed by the inner wall of the valve body to overcome the elastic force of the second elastic device 27, that is, the second elastic device 27 is compressed. At this time, the metering channel 21 and the liquid inlet 11 are connected, and the valve body 1 and the valve core assembly are sealed and connected through the sealing ring 25. The liquid can flow from the liquid inlet 11 into the metering channel 21, avoiding the leakage problem between the valve body 1 and the valve core assembly.

[0080] In one embodiment of the present disclosure, after the guide portion moves from the positioning groove 13 to the matching portion, the scraper ring 26 is configured to be pre-pressed on the inner wall of the valve body 1 through the second elastic device 27. In detail, since the depth of the matching portion is less than the depth of the positioning groove 13, when the scraper ring 26 is located in the positioning groove 13, the second elastic device 27 is in a compressed state, and after the guide portion moves from the positioning groove 13 to the matching portion, the guide portion will be squeezed by the inner wall of the valve body 1 to move in the direction of the valve core 23, and the docking portion 20 and the guide portion move synchronously. At this time, the second elastic device 27 between the scraper ring 26 and the docking portion 20 is extended, pushing the scraper ring 26 against the inner wall of the valve body 1, and the second elastic device 27 is still in a compressed state, thereby the scraper ring 26 can be tightly pressed against the inner wall of the valve body 1, so that there is no gap between the scraper ring 26 and the inner wall of the valve body 1, and the sealing ring 25 is wrapped by the scraper ring 26 and does not contact the inner wall of the valve body 1. Therefore, during the rotation of the guide portion located at the matching portion, the scraper ring 26 is always in contact with the inner wall of the valve body 1 , and the sealing ring 25 is not in contact with the inner wall of the valve body 1 , thereby protecting the sealing ring 25 .

[0081] In another embodiment of the present disclosure, when the guide portion enters the positioning groove 13 along the matching portion, the scraper ring 26 is configured to squeeze the second elastic device 27 so that the sealing ring 25 contacts and matches with the inner wall of the valve body 1 .

[0082] In detail, after the guide portion enters the positioning groove 13 along the matching portion, since the depth of the positioning groove 13 is greater than the depth of the matching portion, under the action of the first elastic device 24, the guide portion enters the positioning groove 13, and the docking portion 20 moves synchronously with the guide portion. Since the depth of the inner wall of the valve body 1 contacted by the scraper ring 26 remains unchanged, and the elastic force of the first elastic device 24 is greater than the elastic force of the second elastic device 27, the second elastic device 27 is squeezed and compressed by the scraper ring 26 and the docking portion 20. In this process, the sealing ring 25 and the docking portion 20 move synchronously toward the inner wall of the valve body 1 and contact the inner wall of the valve body 1, specifically, the sealing ring 25 contacts the inner wall around the liquid inlet 11, and the metering channel 21 docks with the liquid inlet 11, thereby realizing the sealing effect of the sealing ring.

[0083] It should be explained that the first elastic device 24 and the second elastic device 27 can be springs of different specifications. The elastic force of the first elastic device 24 is greater than the elastic force of the second elastic device 27, thereby achieving that the elastic force of the first elastic device 24 can drive the second elastic device 27 to be compressed.

[0084] refer to Figure 3 and Figure 4In one embodiment of the present disclosure, the guide portion may be a roller 28, the matching portion may be a guide groove 14, and the roller 28 is configured to roll along the guide groove 14. The roller 28 can be rotatably connected to the corresponding position of the guide groove 14 on the inner wall of the valve body 1 of the docking portion 20, and the guide groove 14 is configured to be able to cooperate with the roller and is arranged along the circumferential direction of the inner wall of the valve body 1. In this way, the valve body 1 and the roller 28 are rollingly matched, reducing the wear of the two during the rotation of the valve core assembly.

[0085] refer to Figure 1 In one embodiment of the present disclosure, a metering pipe 15 is provided on the valve body 1, and the first end of the metering pipe 15 extends to the outside of the valve body 1, and the second end extends to the inner cavity of the valve body 1. The first end of the metering pipe 15 can be used to connect a metering device to measure the amount of liquid outflow. The second end of the metering pipe 15 can be connected to the liquid outlet end of the metering channel 21, thereby realizing that the liquid flowing into the liquid inlet 11 is transported to the metering device through the metering channel 21 and the metering pipe 15, and the liquid flowing into the liquid inlet 11 is measured.

[0086] In detail, one end of the valve stem 22 is rotatably connected to the second end of the metering pipeline 15, and the outlet of the metering channel 21 is connected to the metering pipeline 15. The metering channel 21 has two parts, one part is located in the valve core 23, and the other part is located in the valve stem 22, and the two parts remain in a connected state. The liquid flowing into the liquid inlet 11 will pass through the valve core 23 and the valve stem 22 in the metering channel 21 in sequence, and the outlet of the metering channel 21 in the valve stem 22 is connected to the inlet of the metering pipeline 15, so that the liquid enters the first end of the metering pipeline 15, and then flows into the external metering device through the second end, thereby realizing the metering of the liquid entering the liquid inlet 11.

[0087] It should be noted that the valve stem 22 and the valve core 23 need to rotate during the process of selecting the liquid inlet 11, and the metering pipe 15 can be fixed on the valve body 1 by melting, welding, etc., so as to ensure the stability of the connection between the metering channel 21 and the metering pipe 15.

[0088] In one embodiment of the present disclosure, reference Figure 1 A connector 16 connected to the liquid inlet 11 is provided on the outer wall of the valve body 1. The connector 16 is configured to be connected to an external pipeline, and the connector 16 is configured to be connected to the outer wall of the valve body 1 through a bolt 161. The connector 16 can be used to facilitate the connection of an external pipeline to the valve body 1, and a sealing structure can be provided between the connector 16 and the outer wall of the valve body 1 to increase the sealing effect.

[0089] It should be noted that the number of the connectors 16 is the same as the number of the liquid inlets 11 , and it needs to be determined according to actual conditions, and there is no limitation to this.

[0090] refer to Figure 1 and Figure 6 In one embodiment of the present disclosure, a drain port 17 connected to the inner cavity of the valve body 1 is also provided on the valve body 1, and also includes a ball collecting device 3 connected to the drain port 17. The cleaning ball flowing out of the liquid inlet 11 is configured to enter the ball collecting device through the inner cavity and the drain port 17.

[0091] It should be noted that after a period of transportation work, some viscous liquid or solids in the liquid will adhere to the inner wall of the external pipeline, which needs to be cleaned by a cleaning ball. The cleaning ball will move in the direction of the liquid flow in the pipeline, and a scraper ring or scraper blade can be provided on the side where the cleaning ball contacts the inner wall of the pipeline. During the movement of the cleaning ball, the scraper ring or scraper blade will scrape off the dirt on the inner wall of the pipeline to achieve the purpose of cleaning the pipeline.

[0092] The ball collecting device 3 is a device for collecting and cleaning cleaning balls. After the cleaning balls finish cleaning the pipeline, dirt will adhere to the cleaning balls. The ball collecting device 3 collects and cleans the cleaning balls, thereby facilitating centralized processing of the cleaning balls and subsequent reuse.

[0093] As mentioned above, reference Figure 6 The inner cavity of the valve body 1 can be constructed into an umbrella shape, and the drain port 17 is located at the bottom of the inner cavity. The cleaning ball entering the inner cavity from any liquid inlet 11 will move toward the drain port 17 in the inner cavity under the action of gravity, and enter the ball collecting device 3 through the drain port 17. The cleaning ball entering the ball collecting device 3 will be cleaned by the ball collecting device 3 to facilitate subsequent reuse.

[0094] In the present disclosure, the ball collecting device 3 is connected to the drain port 17 of the multi-way metering valve. The cleaning balls in multiple pipelines can enter the inner cavity of the valve body 1, and then enter the ball collecting device 3 through the drain port 17, thereby realizing the ball collecting work of multiple pipelines at one time, which is convenient, fast and easy to control.

[0095] For more details, please refer to Figure 6 The ball collecting device 3 includes a hollow inner cavity surrounded by an outer shell 31, a separation inner core 32 rotatably connected in the hollow inner cavity, and a sewage discharge line 33 connected to the hollow inner cavity. The cleaning ball can enter the separation inner core 32 through the sewage discharge port 17 of the valve body 1. During the rotation of the separation inner core 32, the liquid on the cleaning ball is thrown out due to the centrifugal force, and the separated liquid is discharged from the sewage discharge line 33, thereby cleaning the cleaning ball.

[0096] Since the multi-way metering valve also includes a collecting port 12, in order to prevent the cleaning ball from accidentally entering the collecting port 12, causing blockage of the collecting port 12 or making it difficult for the ball collecting device to collect the cleaning ball, in one embodiment of the present disclosure, a sewage outlet 17 is arranged at the bottom of the valve body 1, and the collecting port 12 is arranged on the side wall of the valve body 1. A blocking portion is arranged on the collecting port 12, and the blocking portion is configured to allow liquid to flow out to prevent the cleaning ball from passing through the collecting port 12 during its movement toward the sewage outlet 17 and accidentally entering the collecting port 12.

[0097] For example, the blocking portion may be constructed as a cross rib, a grille, or other common structure located at the entrance of the collecting and transporting port 12 that can prevent the cleaning ball from entering the collecting and transporting port 12, and there is no limitation to this.

[0098] It can be seen from this that in the process of the cleaning ball passing through the liquid inlet and the inner cavity of the valve body 1 into the sewage outlet 17, since a blocking portion is provided at the opening of the collecting port 12, the cleaning ball can only enter the ball collecting device 3 through the sewage outlet 17 under the action of gravity, which not only prevents the cleaning ball from mistakenly entering the collecting port 12 and causing blockage of the collecting port 12 and subsequent pipe sections, but also ensures that the ball collecting device 3 can collect all the cleaning balls.

[0099] In practical applications, the liquid inlet 11 connected to the metering channel 21 may also score a goal, so Figure 3 and Figure 5 A fastening ring 29 is provided at the entrance of the metering channel 21, and the fastening ring 29 is used to fasten the sealing ring 25 and the scraping ring 26 to the docking portion 20, and a blocking structure may be provided on the fastening ring 29, and the blocking structure may be a cross rib, a grid, or other common structures in the art that can prevent the cleaning ball from entering the metering channel 21, and there is no limitation on this, so as to prevent the cleaning ball from mistakenly entering the metering channel 21 and causing damage.

[0100] refer to Figure 6 In one embodiment of the present disclosure, a gate valve 18 is further included, and the gate valve 18 is configured to close or open the sewage outlet 17. The gate valve 18 includes a valve plate 181, a valve stem 182, and a hand wheel 183. The valve plate 181 is fixedly connected to the valve stem 182. The valve plate 181 is configured to move synchronously with the valve stem 182. The valve stem 182 and the hand wheel 183 are constructed to be driven in the form of a lead screw nut. When in use, the gate valve 18 can be opened and closed by rotating the hand wheel 183. Those skilled in the art should know that there are many types of valves that can realize the opening and closing of the sewage outlet 17. This embodiment is only used as an example and is not limited to this.

[0101] In detail, when using cleaning balls to clean the pipeline, the gate valve 18 can be opened to allow the cleaning balls flowing out of the multiple liquid inlets 11 to enter the ball collecting device 3 through the sewage outlet 17. During this process, the blocking portion on the collecting and transporting port 12 will prevent the cleaning balls from entering the collecting and transporting port 12, and the liquid will be discharged through the collecting and transporting port 12. After the collection is completed, the gate valve 18 can be closed, and the liquid entering the ball collecting device 3 from the inner cavity of the valve body 1 will be discharged through the sewage pipeline 33 first, and then the cleaning balls are separated into solid and liquid through the separation core 32, and the separated liquid is discharged through the sewage pipeline 33.

[0102] refer to Figure 2 and Figure 6 The outer shell 31 and the separation inner core 32 of the ball collecting device 3 can be provided with ball outlets of the same shape, and when the separation inner core 32 rotates relative to the outer shell until its ball outlet is in a corresponding position with the ball outlet of the outer shell 31, the collected cleaning balls are discharged. A ball outlet pipe 34 and a cover plate 35 that can close the outlet of the ball outlet pipe 34 can also be provided outside the ball outlet of the outer shell 31. After the ball collecting device 3 finishes cleaning the cleaning balls, the cover plate 35 can be opened, and the cleaning balls can be taken out of the ball collecting device 3 through the ball outlet pipe 34. Those skilled in the art know that there are many structures and methods for taking out the cleaning balls from the ball collecting device 3, and this embodiment is only used as an example and is not limited to this.

[0103] When the pipeline is cleaned, the gate valve 18 closes the sewage outlet. At this time, the liquid flowing out of the multiple liquid inlets 11 will enter the collecting port 12 through the inner cavity of the valve body 1, and then be discharged to the external pipeline through the collecting port 12.

[0104] When metering is required, the valve stem 22 can be rotated to make the valve core 23 move to the position corresponding to the liquid inlet 11 that needs to be metered, and the metering channel 21 will dock with the liquid inlet 11, so that the liquid in the docked liquid inlet 11 enters the metering channel 21, and flows into the externally connected device through the second end and the first end of the metering pipeline 15 for metering. At the same time, the remaining liquid inlets 11 can all maintain the liquid inlet state, and the liquid that enters is discharged from the collection port 12, which will not affect the use of the metering channel 21; or, the gate valve 18 can be opened, and the cleaning balls entering the remaining liquid inlets 11 can enter the ball collecting device through the sewage outlet 17 to collect the balls, which will not affect the use of the metering channel 21.

[0105] In summary, the multi-way metering valve disclosed in the present invention can realize the functions of collecting and transporting multiple external pipelines, measuring the oil in a certain pipeline, and can be connected to the ball collecting device 3 through the valve body 1 to perform ball collecting work, and the various processes will not interfere with each other. Therefore, the multi-way metering valve disclosed in the present invention has multiple uses. Compared with the traditional structure and layout in the prior art, the present invention can further simplify the connection structure and reduce the occupied space.

[0106] In one embodiment of the present disclosure, an oil production system is provided. The system includes the multi-way metering valve and the oil pipeline described in the above embodiment. The liquid inlets 11 of the multi-way metering valve are respectively connected to the corresponding oil pipelines.

[0107] In this embodiment, the structure, connection relationship and function of the multi-way metering valve are exactly the same as the multi-way metering valve described in the above embodiments. Those skilled in the art can fully deduce the specific working process of the multi-way metering valve in this embodiment from the above records, which will not be repeated here.

[0108] In practical applications, the multi-way metering valve includes multiple liquid inlets 11 and multiple oil pipelines. The multiple liquid inlets 11 are connected to the corresponding oil pipelines, and the liquid in the oil pipelines enters the multi-way metering valve through the liquid inlets 11.

[0109] When it is necessary to meter the liquid in a certain oil pipeline, the valve core assembly can be rotated to connect with the liquid inlet 11 connected to the oil pipeline, and the oil in the oil pipeline can be introduced into the metering channel 21, thereby achieving the metering of the liquid in the oil pipeline; when it is necessary to clean the oil pipeline, the gate valve 18 can be opened to allow the cleaning ball in the oil pipeline to enter the ball collecting device 3 after cleaning, so as to achieve the recovery and cleaning of the cleaning ball.

[0110] It can be seen from this that the oil production system provided in this embodiment can realize the collection, metering or cleaning of the liquid in the oil pipeline through the multi-way metering valve.

[0111] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A multi-way metering valve, characterized in that: include: A valve body (1), the valve body (1) having an inner cavity, at least two liquid inlets (11) being arranged in the circumferential direction of a side wall of the valve body (1); the valve body (1) being provided with a collecting and transporting port (12) communicating with the inner cavity, the liquid entering the inner cavity through the at least two liquid inlets (11) being configured to flow out through the collecting and transporting port (12); A valve core assembly, the valve core assembly being provided with a metering channel (21), the valve core assembly being configured to rotate in the inner cavity until the metering channel (21) is docked with any one of the liquid inlets (11); liquid flowing out of the liquid inlet (11) is configured to flow out through the metering channel (21), The valve core assembly comprises a valve stem (22) coaxial with and rotatably connected to the valve body (1), a valve core (23) radially extending outward from the valve stem (22), and a docking portion (20), wherein the docking portion (20) is pre-pressed between the valve core (23) and the inner wall of the valve body (1) by a first elastic device (24); a guide portion is rotatably connected to the docking portion (20), a matching portion is provided on the inner wall of the valve body (1), and the guide portion is configured to be guided and matched with the matching portion; a positioning groove (13) is provided in the matching portion at a position corresponding to the liquid inlet (11), and the depth of the positioning groove (13) in the radial direction is greater than the depth of the matching portion; The docking portion (20) comprises a sealing ring (25) surrounding the entrance position of the metering channel (21); when the entrance and the liquid inlet (11) are docked together, after the guide portion enters the positioning groove (13) along the matching portion, the sealing ring (25) is configured to be pre-pressed on the inner wall of the valve body (1) under the action of the first elastic device (24) to seal the liquid inlet (11) and the entrance; when the guide portion moves from the positioning groove (13) to the matching portion, a gap is formed between the sealing ring (25) and the inner wall of the valve body (1); The guide portion is a roller (28), the matching portion is a guide groove (14), and the roller (28) is configured to roll in the guide groove (14).

2. The multi-way metering valve according to claim 1, characterized in that: The inlet of the metering channel (21) is arranged at the free end of the valve core (23).

3. The multi-way metering valve according to claim 2, characterized in that: The inlet of the metering channel (21) extends to the outside of the docking portion (20); the docking portion (20) is connected to the free end of the valve core (23) via a first elastic device (24).

4. The multi-way metering valve according to claim 1, characterized in that: It also includes a scraper ring (26) surrounding the outside of the sealing ring (25), the scraper ring (26) being connected to the docking portion (20) via a second elastic device (27); the elastic force of the second elastic device (27) is smaller than the elastic force of the first elastic device (24); When the guide portion moves from the positioning groove (13) to the matching portion, the scraper ring (26) is configured to be pre-pressed on the inner wall of the valve body (1) through the second elastic device (27); When the guide portion enters the positioning groove (13) along the matching portion, the scraper ring (26) is configured to squeeze the second elastic device (27) so that the sealing ring (25) contacts and matches the inner wall of the valve body (1).

5. The multi-way metering valve according to claim 2, characterized in that: A metering pipe (15) is provided on the valve body (1), wherein a first end of the metering pipe (15) extends outside the valve body (1), and a second end extends into an inner cavity of the valve body (1); one end of the valve stem (22) is rotatably connected to the second end of the metering pipe (15), and an outlet of the metering channel (21) is in communication with the second end of the metering pipe (15).

6. The multi-way metering valve according to claim 1, characterized in that: A connector (16) in communication with the liquid inlet (11) is provided on the outer wall of the valve body (1); the connector (16) is configured to be in communication with an external pipeline, and the connector (16) is configured to be connected to the outer wall of the valve body (1) via bolts (161).

7. The multi-way metering valve according to any one of claims 1 to 6, characterized in that: The valve body (1) is also provided with a sewage outlet (17) connected to the inner cavity; and further comprises a ball collecting device (3) connected to the sewage outlet (17); the cleaning ball flowing out of the liquid inlet (11) is configured to enter the ball collecting device (3) through the inner cavity and the sewage outlet (17).

8. The multi-way metering valve according to claim 7, characterized in that: The ball collecting device (3) comprises a hollow inner cavity surrounded by an outer shell (31), a separation inner core (32) rotatably connected to the hollow inner cavity, and a sewage discharge pipeline (33) connected to the hollow inner cavity; the separation inner core (32) is configured to perform solid-liquid separation during rotation, and the separated liquid is configured to be discharged through the sewage discharge pipeline (33).

9. The multi-way metering valve according to claim 7, characterized in that: The sewage outlet (17) is arranged at the bottom of the valve body (1); the collecting and transporting port (12) is arranged on the side wall of the valve body (1); the collecting and transporting port (12) is also provided with a blocking portion, and the blocking portion is configured to allow liquid to flow out.

10. The multi-way metering valve according to claim 7, characterized in that: It also comprises a gate valve (18), wherein the gate valve (18) is configured to close or open the sewage outlet (17).

11. An oil production system, characterized in that: It comprises a multi-way metering valve according to any one of claims 1 to 10, wherein the liquid inlets (11) of the multi-way metering valve are respectively connected to corresponding oil pipelines.

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