CN115183025A - Multi-port metering valve and oil production system - Google Patents

Abstract

The present disclosure relates to a multi-port metering valve and an oil production system. The multi-port 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 on the circumferential direction of the side wall of the valve body. The valve body is provided with a collection and delivery port that communicates with the inner cavity, and the liquid entering the inner cavity through at least two liquid inlets is configured to flow out through the collection and delivery ports; the valve core assembly is provided with a metering channel, and the valve core assembly is configured to be rotated in the inner cavity such that the metering channel is docked with any one of the liquid inlets; the liquid flowing from the liquid inlet is configured to flow out through the metering channel. The multi-port metering valve of the present disclosure can not only perform selective metering, but also play the role of collecting and transporting liquid from multiple liquid inlets, which improves the practical value of the multi-port metering valve, and does not require a special metering manifold to install the multi-port metering valve. Through the metering valve, the floor space is reduced and the structure is simplified.

Description

Multi-port metering valve and oil production system

technical field

The present disclosure relates to the technical field of oil well metering equipment, in particular to a multi-port metering valve and an oil production system.

Background technique

In the process of oilfield exploitation, it is usually necessary to transport the liquid extracted from different oil wells by multiple oil pipelines, and it is necessary to measure the liquid exploitation amount in this process.

In the prior art, a control valve is usually installed in the oil well metering manifold to selectively conduct the separator and a certain oil well by manual or automatic means, so that the liquid of the selected oil well flows into the separator. It is equipped with an automatic liquid level acquisition system to automatically measure the liquid production of a single well.

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, the floor space is too large, the structure is complicated, and the installation, operation and maintenance are inconvenient.

SUMMARY OF THE INVENTION

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

According to a first aspect of the present disclosure, there is provided a multi-port metering valve, characterized in that it includes:

A valve body, 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 liquid entering into the inner cavity from at least two of the liquid inlets is configured to flow out through the collection and delivery ports;

a valve core assembly, the valve core assembly is provided with a metering channel, the valve core assembly is configured to rotate in the inner cavity to make the metering channel and any one of the liquid inlets butt together; from the liquid inlet The liquid exiting the port is configured to exit through the metering channel.

In one embodiment of the present disclosure, the valve core assembly includes a valve stem coaxially and rotatably connected to the valve body, and a valve core extending radially outward from the valve stem; the inlet of the metering channel Set on the free end of the valve core.

In an embodiment of the present disclosure, it further includes a butt portion, the inlet of the metering channel extends to the outside of the butt portion; the butt portion is connected to the free end of the valve core through a first elastic device; the The abutting portion is configured to be pre-pressed between the valve core and the valve inner wall by the first elastic means.

In one embodiment of the present disclosure, the abutting portion includes a sealing ring surrounding the position of the inlet; when the inlet and the liquid inlet are butted together, the sealing ring is configured to act on the first elastic device Lower pre-press at the position of the liquid inlet.

In an embodiment of the present disclosure, a guide portion is rotatably connected to the abutting portion, a fitting portion is provided on the inner wall of the valve body, and the guide portion is configured to guide and fit with the fitting portion.

In an 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;

After 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 by the force of the first elastic device, so as to seal the liquid inlet with said entrance;

After the guide portion moves from the positioning groove to the matching portion, there is a gap between the sealing ring and the inner wall of the valve body.

In an embodiment of the present disclosure, it further includes a scraper ring surrounding the outer side of the sealing ring, the scraper ring is connected to the abutting part through a second elastic device; the elastic force of the second elastic device is smaller than that of the second elastic device. the elastic force of the first elastic device;

After 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 by the second elastic device;

After 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 is in contact with the inner wall of the valve body.

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.

In an 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 cavity of the valve body; one end of the valve stem is connected to the valve body. The second end of the metering pipe is rotatably connected, and the outlet of the metering channel communicates with the second end of the metering pipe.

In an embodiment of the present disclosure, a connection head communicated with the liquid inlet is provided on the outer wall of the valve body, the connection head is configured to communicate with an external pipeline, and the connection head is configured to It is connected to the outer wall of the valve body through a screw.

In an embodiment of the present disclosure, the valve body is further provided with a sewage outlet that communicates with the inner cavity; it also includes a ball collecting device that communicates with the sewage outlet, and the cleaning balls flowing out from the liquid inlet are configured In order to enter the ball collecting device through the inner cavity and sewage outlet.

In one embodiment of the present disclosure, the ball collecting device includes a hollow inner cavity enclosed by an outer casing, a separate inner core rotatably connected to the hollow inner cavity, and a sewage discharge line communicating with the hollow inner cavity ; The separation inner core is configured to perform solid-liquid separation during the rotation, and the separated liquid is configured to be discharged through a sewage discharge line.

In an embodiment of the present disclosure, the sewage outlet is provided at the bottom of the valve body; the collection and delivery port is arranged on the side wall of the valve body, and the collection and delivery port is further provided with a blocking part, the The blocking portion is configured to allow liquid to flow out.

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

According to the second aspect of the present disclosure, an oil production system is further provided, which is characterized in that it includes the above-mentioned multi-port metering valve, and the liquid inlets of the multi-port metering valve are respectively butted together with the corresponding oil incoming pipelines.

One beneficial effect of the present disclosure is that the multi-port metering valve of the present disclosure drives the metering channel to rotate through the valve core assembly to selectively measure any one liquid inlet, and at the same time, the remaining liquid inlets can continue to feed liquid and It is discharged from the collecting and exporting port. With this cooperation, the multi-port metering valve of the present disclosure can not only perform selective metering, but also play the role of collecting and transporting liquid from multiple liquid inlets, which improves the practical value of the multi-port metering valve, and does not require a special metering sink. The multi-port metering valve is installed with a pipe, which reduces the floor space and makes the structure simple.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings.

Description of drawings

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

FIG. 1 is a schematic structural diagram of a multi-port metering valve provided by an embodiment of the present disclosure;

2 is an axial view of an assembly of a multi-port metering valve and a ball collecting device provided by an embodiment of the present disclosure;

3 is a partial enlarged cross-sectional view of an angle of a multi-port metering valve provided by an embodiment of the present disclosure;

4 is a partial enlarged view of another angle of the multi-port metering valve provided by an embodiment of the present disclosure;

5 is a partial enlarged view of a valve core assembly provided by an embodiment of the present disclosure;

6 is a schematic structural diagram of an assembly of a multi-port metering valve and a ball collecting device provided by another embodiment of the present disclosure.

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

1-Valve body, 11-Liquid inlet, 12-Gathering port, 13-Locating groove, 14-Guiding groove, 15-Measuring pipe, 16-Connecting head, 161-Bolt, 17-Sewage outlet, 18-Gate valve, 181- valve plate, 182- valve stem, 183- hand wheel, 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-outer shell, 32-separating inner core, 33-sewage line, 34-outlet pipe, 35- cover plate.

Detailed ways

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 the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

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

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

The specific embodiments of the present disclosure will be described below with reference to the accompanying drawings.

In this document, "upper", "lower", "front", "rear", "left", "right", etc. are only used to indicate the relative positional relationship between related parts, rather than limit the absolute positions of these related parts .

In this document, "first", "second", etc. are only used to distinguish each other, but do not indicate the degree of importance and order, and the premise of mutual existence.

In this paper, "equal", "same" and the like are not limitations in strict mathematical and/or geometric senses, and also include errors that can be understood by those skilled in the art and allowed by manufacturing or use.

The present disclosure provides a multi-port metering valve, which can cooperate with a metering device to measure the amount of liquid produced by an oil well. The multi-port metering valve provided by the present disclosure has high practicability and can also be applied to selectively meter multiple The flow rate of liquid discharged from any one of the liquid pipelines.

The multi-port metering valve of the present disclosure includes a valve body and a valve core assembly, the valve body has an inner cavity, and at least two liquid inlets are provided in the circumferential direction of the sidewall of the valve body, and the liquid inlets can be connected with an external liquid pipeline; The valve body is provided with a collection and delivery port communicating with the inner cavity, and the liquid entering the inner cavity through the at least two liquid inlet ports is configured to flow out through the collection and delivery ports.

The valve core assembly is provided with a metering channel, the valve core assembly is configured to rotate in the inner cavity so that the metering channel and any liquid inlet are butted together, and the liquid flowing from the liquid inlet is configured to flow out through the metering channel, and the metering channel The outflow end of the device can be connected with a metering device to realize the metering of the liquid flowing out of the liquid inlet.

Under normal oil production conditions, the liquid from at least two liquid inlets flows out from the collection and delivery ports. When the liquid in one of the liquid inlets needs to be measured, the valve core assembly is rotated so that the metering channel is connected to the liquid inlet to be measured. , the liquid flowing in from the liquid inlet is introduced into the metering device to measure the liquid output. At the same time, the liquid from other liquid inlets can still be discharged from the collecting port, and the process of metering and collecting will not be interfere with each other.

From this, it can be seen that by controlling the rotation of the valve core of the multi-port metering valve, the metering channel can be connected to a liquid inlet to be metered, and the metering channel can lead the liquid into the metering device, and the metering device can measure the liquid from the liquid inlet. At the same time, the other liquid inlets are still connected to the collecting and transporting ports, so that the liquid can be discharged normally, which has the functions of collecting liquid output and selectively conducting the oil well and the metering device. Compared with the prior art using externally designed infusion pipes to conduct oil wells and metering devices, the metering channels are integrated in the valve body, which reduces the number of components, and simplifies the structure and installation space occupied.

For the convenience of understanding, the specific structure and working principle of the multi-port metering valve of the present disclosure will be described in detail below with reference to FIG. 1 to FIG. 6 in conjunction with several embodiments.

Referring to FIG. 1 and FIG. 2 , in one embodiment of the present disclosure, a multi-port metering valve includes a valve body 1 , a valve core assembly, and a collection and delivery port 12 .

The side wall of the valve body 1 is provided with at least two liquid inlet ports 11 , and the at least two liquid inlet ports 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 the external 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 infusion pipeline flows into the valve body 1. Inside the cavity of the multi-port metering valve.

For example, in this embodiment, the valve body 1 can be provided with sixteen liquid inlets 11, and the sixteen liquid inlets 11 are evenly arranged in the circumferential direction of the same height of the side wall of the valve body 1, and each liquid inlet 11 is It can be communicated with 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 the liquid inlets 11 is related to the specification of the multi-port metering valve or the actual application scenario of the multi-port metering valve. limit.

Continuing to refer to FIG. 1, the inner cavity of the valve body 1 can be configured 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 in turn. The flow in the inner cavity of the valve body 1 under the action of gravity.

Referring to FIG. 2 , the valve body 1 is provided with a collection and delivery port 12 communicating with 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 . A liquid manifold can be connected to the outside of the collecting and delivery port 12, and the liquid can be transported to a designated position by the liquid manifold.

In detail, along the vertical downward direction, the inner cavity of the valve body 1 includes an upper cylindrical section, a middle conical section and a lower cylindrical section which are successively arranged in sequence. The collecting and transporting port 12 is opened in the middle conical section, and the lower cylindrical section is provided with a sewage outlet 17, which is used for the communication of the sewage discharge device.

The plurality of liquid inlets 11 guide the liquids in the plurality of 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 advantageous for setting a plurality of liquid inlets 11 , and the liquid inputted by these liquid inlets 11 can be condensed into the collecting and transporting port 12 , and the design is ingenious and reasonable.

Continuing to refer to FIG. 1 , a valve core assembly is also provided in the valve cavity, the valve core assembly is provided with a metering channel 21 , and the valve core assembly is configured to rotate in the inner cavity of the valve body 1 to the metering channel 21 and any one of the liquid inlets 11 . When butted together, the liquid entering through the liquid inlet 11 will enter the metering channel 21 .

In practical applications, referring to Figures 1 and 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 the liquid in one liquid inlet 11 is metered, the valve core assembly can be rotated to make the metering channel 21 dock with the liquid inlet 11, the liquid in the liquid inlet 11 will flow into the metering channel 21, and the remaining liquid inlets 11 The liquid continues to flow into the inner cavity of the valve body 1 and flows out from the collecting port 12 .

Continuing to refer to FIG. 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 , and 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 arranged 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 and the liquid inlet 11 are connected.

In practical applications, in order to realize the rotation of the valve stem 22, the end of the valve stem 22 connected to the valve cover can also extend out of the outside of the valve cover, and the valve stem 22 located outside the valve cover can be connected to the output end of the drive device or the handwheel, etc. Any device common in the art that can drive the valve stem 22 to rotate, thereby facilitating the adjustment of the selective connection between the inlet of the metering channel 21 in the valve core 23 and the liquid inlet 11 .

Considering that during the rotation of the valve core 23, the direct contact between the valve core 23 of the valve core assembly and the valve body 1 may cause wear of the two.

Referring to FIG. 3 , in an embodiment of the present disclosure, the valve core assembly further includes a docking portion 20 , one end of the docking portion 20 is butted with the liquid inlet 11 , and the other end is butted with the metering channel 21 . The inlet extends to the outside of the docking portion 20 . Specifically, the docking part 20 has a channel, and the docking part 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 is facing the side wall of the valve body 1, thereby To achieve the extension of the inlet of the metering channel 21 to the outside of the docking portion 20 .

The free end of the valve core can be configured as a groove into which the abutting part can be inserted. A first elastic device 24 may also be provided between the valve core 23 and the abutting part, the abutting part 20 is connected to the free end of the valve core 23 through the first elastic device 24 , and the butting part 20 is pre-pressed on the valve through the first elastic device 24 Between the core 23 and the inner wall of the valve body 1 , for example, the first elastic device 24 may be a spring, and at least two springs may be provided between the abutting portion 20 and the valve core 23 .

It can be understood that one end of the abutting portion 20 abuts on 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 is closely attached to the liquid inlet 11 to prevent liquid leakage happened.

In order to increase the sealing effect between the inlet of the metering channel 21 and the liquid inlet 11 , referring to FIG. 3 , in one embodiment of the present disclosure, a sealing ring 25 is also provided at the position of the abutting portion 20 surrounding the inlet of the metering channel 21 , When the inlet of the metering channel 21 and the liquid inlet 11 are butted together, the sealing ring 25 is pre-pressed at the position of the liquid inlet 11 under the action of the first elastic device 24 .

It can be understood that when the inlet of the metering channel 21 and the liquid inlet 11 are butted together, the sealing ring 25 will block the outer edge of the metering channel 21, and at the same time, under the action of the first elastic device 24, the inlet of the metering channel 21 The sealing ring 25 will be squeezed with the liquid inlet 11. The sealing ring 25 can be made of soft rubber and can be deformed when being squeezed, so that there is no gap between the inlet of the metering channel 21 and the liquid inlet 11, thereby improving the The sealing effect further prevents the occurrence of liquid leakage.

When the valve stem 22 drives the valve core 23 to rotate, the docking portion 20 moves synchronously with the valve core 23. In order to ensure the smoothness of the rotation process and the accuracy of the docking process, in an embodiment of the present disclosure, referring to FIG. A guide portion is rotatably connected to the butting portion 20 , 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 be matched with the guide portion.

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 to the metering channel 21 in the circumferential direction along the matching portion through the guide portion. The position where it is docked with the liquid inlet 11 on the valve body 1 . Both the position of the matching part and the position of the guide part are determined, so that the inlet of the metering channel 21 can be accurately connected with the liquid inlet 11 .

It should be noted that the matching portion can be configured as a boss protruding from the inner wall of the valve body 1, or can be configured as a groove recessed into the inner wall of the valve body 1 to a certain depth, that is, the matching guide portion can be positioned and guided. effect can be.

It should be noted that the matching portion and the guiding portion of the present disclosure are matched with a groove and a boss, wherein one of the groove and the boss is provided on the abutting portion 20, and the other is provided on the valve body 1 on the inner wall.

In an embodiment of the present disclosure, referring to FIGS. 3 and 4 , 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 on the valve body 1 is greater than that of the matching portion. And the positioning groove 13 can be configured to be in a shape compatible with the guide portion, allowing the guide portion to extend into it. Since the position of the positioning groove 13 is determined, under the cooperation of the guide portion and the positioning groove 13, the accuracy of the metering channel 21 is realized. It is butted together with the liquid inlet 11.

In one embodiment, referring to FIG. 4 , after the guide portion reaches the position of the positioning groove 13 along the matching portion, under the action of the elastic force of the first elastic device 24 , the guide portion will enter the positioning groove 13 , and the sealing ring 25 will enter the positioning groove 13 . Under the action of the first elastic device 24, it will stick to the inner wall of the valve body 1 to seal the inlet of the metering channel 21 and the liquid inlet 11, so as to improve the positioning and docking effect, and also improve the sealing effect.

In another embodiment, referring to FIG. 4 , after the guide portion moves from the positioning groove 13 to the fitting portion, the sealing ring 25 leaves the inner wall of the valve body 1 and has a certain gap with the valve body 1 .

It can be understood that when the guide part 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 part moves from the positioning groove 13 to the matching part, due to the matching The depth of the inner wall where the valve body 1 is located is smaller than the depth of the inner wall where the positioning groove 13 is located, the inner wall of the valve body 1 will squeeze the guide part, so that the first elastic device 24 is compressed, and the sealing ring 25 is also compressed with the first elastic device 24 together with the guide part Moving in the direction of the valve stem 22 , 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, during the rotation of the valve core 23 at the matching portion, the guide portion is in contact with the inner wall of the valve body 1, and only after the guide portion reaches the positioning groove 13, the sealing ring 25 will contact the valve body 1 to prevent During the rotation process, the inner wall of the valve body 1 causes wear to the sealing ring 25, which prolongs the service life of the sealing ring.

Referring to FIG. 3 , in an embodiment of the present disclosure, the butting portion 20 further includes a scraping ring 26 surrounding the outer side of the sealing ring 25 , and the scraping ring 26 is connected to the abutting portion 20 through a second elastic device 27 . For example, when the guide part and the matching part are matched, the scraper ring 26 is tightly attached to the inner wall of the valve body 1 under the action of the elastic force of the second elastic device 27 , and in this case, only the scraper ring 26 and the guide part and the valve body 1 The inner wall of the valve body is in contact, the sealing ring 25 is not in contact with the inner wall of the valve body 1, and the scraper ring 26 can be a rigid material.

Referring to FIG. 4 , when the valve core assembly rotates relative to the valve body 1, before reaching the conductive position between the metering channel 21 and the liquid inlet 11, under the elastic force of the first elastic device 24, the valve core assembly passes the guide portion along the valve along the valve. The mating part of the body 1 moves, and during this process, there is a preset amount of clearance between the sealing ring 25 and the inner wall of the valve body 1 to prevent the sealing ring 25 from sliding and matching 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 .

Continuing to refer to FIG. 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 smaller than that of the first elastic device 24 , the first elastic device 24 Under the elastic force, the butt joint 20 overcomes the elastic force of the second elastic device 27, and drives the sealing ring 25 to move toward the inner wall of the valve body 1 until the sealing ring 25 is sealingly connected to the inner wall of the valve body 1, and at the same time, the scraping ring 26 is blocked by the inner wall of the valve body 1. The squeezing moves against 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 is connected to the liquid inlet 11, and the valve body 1 and the valve core assembly are sealedly connected by the sealing ring 25, and the liquid can flow into the metering channel 21 from the liquid inlet 11, preventing it from flowing from the valve body 1. Leakage between the valve and the spool assembly.

In an 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 by the second elastic device 27 . In detail, since the depth of the matching portion is smaller 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 Pressed by the inner wall of the valve body 1 to move in the direction of the valve core 23, the docking part 20 and the guide part move synchronously. At this time, the second elastic device 27 between the scraping ring 26 and the docking part 20 stretches and pushes the scraping ring 26 is against the inner wall of the valve body 1, and the second elastic device 27 is still in a compressed state, so that the scraping ring 26 can be tightly pressed against the inner wall of the valve body 1, so that the scraping ring 26 and the valve body 1 are in contact with each other. The inner wall has no gap, and the sealing ring 25 is wrapped by the scraping ring 26, and is not in contact with the inner wall of the valve body 1. Therefore, during the rotation of the guide portion at the fitting portion, the scraper ring 26 is always in contact with the inner wall of the valve body 1 , and the sealing ring 25 does not contact the inner wall of the valve body 1 , thus protecting the sealing ring 25 .

In another embodiment of the present disclosure, after the guide portion enters the positioning groove 13 along the fitting portion, the scraping ring 26 is configured to squeeze the second elastic device 27 to make the sealing ring 25 contact the inner wall of the valve body 1 Cooperate.

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 abutting portion 20 moves synchronously with the guide part. Since the depth of the inner wall of the valve body 1 that the scraper 26 contacts is unchanged, and the elastic force of the first elastic device 24 is greater than that of the second elastic device 27, the second elastic device 27 It is compressed by being pressed by the wiper ring 26 and the abutting portion 20 . During this process, the sealing ring 25 and the docking part 20 move in the direction of the inner wall of the valve body 1 synchronously, and are in contact with the inner wall of the valve body 1. Specifically, the sealing ring 25 is in contact with the inner wall around the liquid inlet 11, and the metering channel 21 is in contact with the inner wall of the valve body 1. The liquid inlets 11 are butted against each other, thereby realizing the sealing effect of the sealing ring.

It should be explained that the above-mentioned first elastic device 24 and second elastic device 27 may be springs with different specifications, and the elastic force of the first elastic device 24 is greater than the elastic force of the second elastic device 27, thereby realizing the first elastic device The elastic force of 24 can drive the second elastic means 27 to be compressed.

3 and 4 , in 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 abutting portion 20, and the guide groove 14 is configured to be able to cooperate with the roller and arranged along the circumferential direction of the inner wall of the valve body 1. In this way, the valve body 1 and the The rolling fit of the rollers 28 reduces the wear of the two during the rotation of the valve core assembly.

Referring to FIG. 1 , in one embodiment of the present disclosure, a metering pipe 15 is provided on the valve body 1 , the first end of the metering pipe 15 extends outside the valve body 1 , and the second end extends into 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. 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 inflow of the liquid inlet 11 is realized. liquid to be measured.

In detail, one end of the valve stem 22 is rotatably connected with the second end of the metering pipe 15 , and the outlet of the metering channel 21 is butted with the metering pipe 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 are kept in a connected state. The liquid flowing into the liquid inlet 11 will pass through the valve core 23 and the valve stem in sequence in the metering channel 21. 22. The outlet of the metering channel 21 in the valve stem 22 is butted with the inlet of the metering pipe 15, so that the liquid enters the first end of the metering pipe 15, and then flows into the external metering device through the second end, thereby realizing the The metering of the liquid entering the liquid inlet 11.

It should be noted that the valve stem 22 and the valve core 23 need to be rotated during the process of selecting the liquid inlet 11 , and the metering pipe 15 can be fixed on the valve body 1 by casting, welding, etc., so as to ensure the metering channel 21 Stability of communication with metering pipe 15 .

In one embodiment of the present disclosure, referring to FIG. 1 , the outer wall of the valve body 1 is provided with a connecting head 16 that communicates with the liquid inlet 11 , the connecting head 16 is configured to communicate with an external pipeline, and the connecting head 16 is configured It is connected to the outer wall of the valve body 1 through bolts 161 . The connection head 16 can facilitate the connection of the external pipeline to the valve body 1, and a sealing structure can be provided between the connection head 16 and the outer wall of the valve body 1, thereby increasing the sealing effect.

It should be noted that, the number of the connection heads 16 is the same as the number of the liquid inlets 11, which needs to be determined according to the actual situation, which is not limited.

Referring to FIGS. 1 and 6 , in an embodiment of the present disclosure, the valve body 1 is further provided with a sewage outlet 17 communicating with the inner cavity of the valve body 1 , and also includes a ball collecting device 3 communicated with the sewage outlet 17 . The cleaning balls flowing out of the liquid port 11 are configured to enter the ball collecting device through the inner cavity and the sewage outlet 17 .

It should be noted that after the external pipeline has been transported for a period of time, some viscous liquid or solids in the liquid will adhere to the inner wall of the pipeline, which needs to be cleaned by the cleaning ball. The cleaning ball will move in the direction of the flow of the liquid in the pipeline. In addition, a scraper ring or scraper can be provided on the side of the cleaning ball in contact with the inner wall of the pipeline. During the movement of the cleaning ball, the scraper ring or scraper will scrape off the dirt on the inner wall of the pipeline to achieve the cleanliness of the pipeline. effect.

The ball collecting device 3 is a device that collects the cleaning balls and cleans the 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 The centralized processing and subsequent reuse of the cleaning balls can be facilitated.

As mentioned above, referring to FIG. 6 , the inner cavity of the valve body 1 can be configured as an umbrella shape, the sewage outlet 17 is located at the bottom of the inner cavity, and the cleaning balls entering the inner cavity through any one of the liquid inlets 11 will Under the action of gravity, it moves in the direction of the sewage outlet 17 in the inner cavity, and enters the ball collecting device 3 through the sewage outlet 17. The cleaning balls entering the ball collecting device 3 will be cleaned by the ball collecting device 3. to facilitate subsequent reuse.

In the present disclosure, the ball collecting device 3 is connected with the sewage outlet 17 of the multi-way metering valve, and the cleaning balls in the multiple pipelines can enter the inner cavity of the valve body 1, and then enter the ball collecting device through the sewage outlet 17. 3, thus realizing the collection of multiple pipelines at one time, which is convenient, quick, and easy to control.

In detail, referring to FIG. 6 , the ball collecting device 3 includes a hollow inner cavity enclosed by an outer casing 31 , a separate inner core 32 rotatably connected to the hollow inner cavity, and a drain line 33 communicating with the hollow inner cavity. The cleaning ball can enter into the separation inner core 32 through the sewage outlet 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 through the sewage discharge line 33, so as to realize the cleaning of the cleaning ball.

Since the multi-port metering valve also includes the collecting and transporting port 12, in order to prevent the cleaning balls from entering the collecting and transporting port 12 by mistake, causing the blocking of the collecting and transporting port 12 or being unfavorable for the ball collecting device to collect the cleaning balls, in one of the present disclosure In the embodiment, the sewage outlet 17 is arranged at the bottom of the valve body 1, the collection and delivery port 12 is arranged on the side wall of the valve body 1, and a blocking portion is provided on the collection and delivery port 12, and the barrier portion is configured to allow the liquid to flow out to prevent cleaning. During the movement of the ball to the sewage outlet 17 , the ball passes through the collecting and outputting port 12 and enters the collecting and outputting port 12 by mistake.

For example, the blocking part can be configured as a cross-rib, a grille, etc. at the entrance of the collecting and transporting port 12, which are common in the art and can prevent the cleaning balls from entering the collecting and transporting port 12, which is not limited thereto.

It can be seen from this that when the cleaning ball enters the sewage outlet 17 through the liquid inlet and the inner cavity of the valve body 1, since the opening of the collecting port 12 is provided with a blocking part, the cleaning ball can only be removed under the action of gravity. Entering the ball collecting device 3 through the sewage outlet 17 not only prevents the cleaning balls from entering the collecting and transporting port 12 by mistake and causing blockage of the collecting and transporting port 12 and subsequent pipe sections, but also ensures that the ball collecting device 3 can collect all the cleaning balls into the collecting and transporting port 12. .

In practical applications, the liquid inlet 11 butted with the metering channel 21 may also be scored. Therefore, referring to FIG. 3 and FIG. 5 , there is a fastening ring 29 at the inlet of the metering channel 21, and the fastening ring 29 is used to seal The ring 25 and the scraping ring 26 are fastened on the docking part 20, and a blocking structure can be provided on the fastening ring 29, and the blocking structure can be a cross rib, a grille, etc., which are common in the art to prevent the cleaning ball from entering the metering channel. 21, there is no restriction on this. In order to prevent the cleaning ball from entering the metering channel 21 by mistake, causing damage.

Referring to FIG. 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 handwheel 183. The valve plate 181 and the valve stem 182 are fixedly connected together. The valve plate 181 is configured to move synchronously with the valve stem 182. The valve stem 182 and the handwheel 183 are structured In order to drive in the form of a screw nut, the gate valve 18 can be turned on and off through the rotation of the handwheel 183 during use. Those skilled in the art should know that there are many kinds of valves that can realize the opening and closing of the sewage outlet 17 , which are only illustrated in this embodiment, and are not limited thereto.

In detail, when using the cleaning ball to clean the pipeline, the gate valve 18 can be opened, so that the cleaning balls flowing out of the plurality of liquid inlets 11 enter the ball collecting device 3 through the sewage outlet 17. During this process, the collecting and transporting port 12 The upper blocking part will block the cleaning balls from entering the collecting port 12 , and the liquid will be discharged through the collecting 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 is discharged through the sewage line 33, and then the cleaning ball is separated from the solid-liquid through the separation inner core 32. The liquid is drained through the blowdown line 33 .

Referring to FIG. 2 and FIG. 6 , the outer casing 31 and the split inner core 32 of the ball collecting device 3 may be provided with a ball outlet with the same shape, and the split inner core 32 is rotated relative to the outer casing until its ball outlet is the same as the outer casing. When the ball outlet of the outer casing 31 is at the corresponding position, the collected cleaning balls are discharged. A bulb tube 34 and a cover plate 35 that can close the mouth of the ball outlet tube 34 can also be provided outside the outer casing 31. The cleaning ball is taken out from the ball collecting device 3 through the ball outlet pipe 34 . Those skilled in the art know that there are various structures and methods for removing the cleaning balls from the ball collecting device 3 , and this embodiment is only for illustration, and not limited thereto.

When the cleaning of the pipeline is completed, the gate valve 18 closes the sewage outlet. At this time, the liquid flowing out of the plurality of liquid inlets 11 will enter the collecting port 12 through the inner cavity of the valve body 1, and then the collecting port 12 will be discharged into the external pipeline. .

When metering is required, the valve stem 22 can be rotated to move the valve core 23 to a position corresponding to the liquid inlet 11 to be measured, and the metering channel 21 will be docked with the liquid inlet 11, so that the liquid in the docked liquid inlet 11 Enter into the metering channel 21, and flow into the externally connected device through the second end and the first end of the metering pipe 15 for metering. At the same time, the remaining liquid inlets 11 can be kept in the liquid inlet state, and the incoming liquid is discharged from the collecting and transporting ports 12, which will not affect the use of the metering channel 21; or, the gate valve 18 can be opened, and the rest The cleaning balls entered by the liquid inlet 11 can enter the ball collecting device through the sewage outlet 17 to perform the ball collecting work without affecting the use of the metering channel 21 .

To sum up, the multi-port metering valve of the present disclosure can achieve the function of gathering and transporting multiple external pipelines, metering the oil in a certain pipeline, and can collect the balls by connecting the ball collecting device 3 through the valve body 1 Therefore, the multi-port metering valve of the present disclosure has various uses. Compared with the traditional structure and arrangement in the prior art, the present disclosure can further simplify the connection structure and reduce the footprint space.

In one embodiment of the present disclosure, an oil production system is provided, the system includes the multi-port metering valve and the oil incoming pipeline described in the above embodiments, and the liquid inlets 11 of the multi-port metering valve are respectively connected with the corresponding oil incoming pipeline. butt together.

In this embodiment, the structure, connection relationship and function of the multi-port metering valve are exactly the same as those of the multi-port metering valve described in the above embodiment. Those skilled in the art can fully deduce the multi-port metering valve in this embodiment from the above description. The specific working process of the metering valve will not be repeated here.

In practical applications, the multi-port metering valve includes a plurality of liquid inlets 11, and there are also a plurality of oil inlet pipes. The plurality of liquid inlet ports 11 are connected with their corresponding oil inlet pipes, and the liquid in the oil inlet pipes will Enter the multi-port metering valve through the liquid inlet 11.

When it is necessary to measure the liquid in an incoming oil pipeline, the valve core assembly can be rotated to connect the liquid inlet 11 connected to the incoming oil pipeline, and the oil in the incoming oil pipeline can be introduced into the metering channel 21. , so that the liquid in the incoming oil pipeline can be measured; when the oil incoming pipeline needs to be cleaned, the gate valve 18 can be opened, so that the cleaning balls after cleaning in the incoming oil pipeline enter the ball collecting device 3, In order to realize the recovery and cleaning of the cleaning ball.

It can be seen from this that the oil production system provided in this embodiment can collect, transport, measure or clean and collect the liquid in the oil pipeline through the multi-port metering valve.

Various embodiments of the present disclosure have been described above, and the foregoing descriptions are exemplary, not exhaustive, and not limiting of the disclosed embodiments. Numerous modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen to best explain the principles of the various embodiments, the practical application or technical improvement in the marketplace, or to enable others of ordinary skill in the art to understand the various embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims (15)

1. A multi-port metering valve, characterized in that, comprising: A valve body (1), the valve body (1) has an inner cavity, and at least two liquid inlets (11) are provided in the circumferential direction of the side wall of the valve body (1); the valve body (1) There is a collection port (12) communicating with the inner cavity, and the liquid entering the inner cavity through at least two of the liquid inlets (11) is configured to pass through the collection port (12) outflow; A valve core assembly, the valve core assembly is provided with a metering channel (21), the valve core assembly is configured to rotate in the inner cavity so that the metering channel (21) is connected to any one of the liquid inlets (11) Butted together; the liquid flowing out of the liquid inlet (11) is configured to flow out through the metering channel (21). 2 . The multi-port metering valve according to claim 1 , wherein the valve core assembly comprises a valve stem ( 22 ) coaxially and rotatably connected with the valve body ( 1 ), and the valve stem is connected by the valve stem (22) A valve core (23) extending radially outward; the inlet of the metering channel (21) is provided at the free end of the valve core (23). 3. The multi-port metering valve according to claim 2, characterized in that it further comprises a butt portion (20), and the inlet of the metering channel (21) extends to the outside of the abutment portion (20); the abutment portion (20); The part (20) is connected to the free end of the valve core (23) by a first elastic device (24); the abutting part (20) is configured to be pre-pressed on the between the valve core (23) and the inner wall of the valve body (1). 4. The multi-port metering valve according to claim 3, characterized in that, the abutting part (20) comprises a sealing ring (25) surrounding the inlet position; when the inlet is butted with the liquid inlet (11) When together, the sealing ring (25) is configured to be pre-pressed at the position of the liquid inlet (11) under the action of the first elastic device (24). 5 . The multi-port metering valve according to claim 4 , characterized in that a guide part is rotatably connected to the abutment part ( 20 ), and a matching part is provided on the inner wall of the valve body ( 1 ). The portion is configured to guide fit with the mating portion. 6 . The multi-port metering valve according to claim 5 , wherein a positioning groove ( 13 ) is provided at a position corresponding to the liquid inlet ( 11 ) in the matching portion, and the positioning groove ( 13 ) is radially arranged in the radial direction. 7 . The depth in the direction is greater than the depth of the fitting portion; 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 valve body by the force of the first elastic device (24). (1) to seal the liquid inlet (11) and the inlet; After the guide portion moves from the positioning groove (13) to the matching portion, there is a gap between the sealing ring (25) and the inner wall of the valve body (1). 7 . The multi-port metering valve according to claim 6 , further comprising a scraper ring ( 26 ) surrounding the outer side of the sealing ring ( 25 ), the scraper ring ( 26 ) passing through a second elastic device ( 7 . 27) connected to the abutting portion (20); the elastic force of the second elastic device (27) is smaller than the elastic force of the first elastic device (24); 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) by a second elastic device (27); After 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) is connected to the second elastic device (27). The inner walls of the valve body (1) are in contact with each other. 8 . The multi-port metering valve according to claim 5 , wherein the guide portion is a roller ( 28 ), the matching portion is a guide groove ( 14 ), and the roller ( 28 ) is configured to guide Roll in the groove (14). 9. The multi-port metering valve according to claim 2, wherein a metering pipe (15) is provided on the valve body (1), and the first end of the metering pipe (15) extends to the valve body (1). ), the second end extends into the inner cavity of the valve body (1); one end of the valve stem (22) is rotatably connected with the second end of the metering pipe (15), and the The outlet communicates with the second end of the metering conduit (15). 10 . The multi-port metering valve according to claim 1 , wherein a connecting head ( 16 ) communicating with the liquid inlet ( 11 ) is provided on the outer wall of the valve body ( 1 ), and the The connecting head (16) is configured to communicate with an external pipeline, and the connecting head (16) is configured to be connected to the outer wall of the valve body (1) by means of bolts (161). 11. The multi-port metering valve according to any one of claims 1 to 10, characterized in that, the valve body (1) is further provided with a sewage outlet (17) communicating with the inner cavity; further comprising: In the ball collecting device (3) communicated with the sewage outlet (17), the cleaning balls flowing out from the liquid inlet (11) are configured to enter the ball collecting device (3) through the inner cavity and the sewage outlet (17). 12. The multi-port metering valve according to claim 11, wherein the ball collecting device (3) comprises a hollow inner cavity enclosed by an outer casing (31), and is rotatably connected to the hollow inner cavity The separation inner core (32) in the device also includes a sewage pipeline (33) communicating with the hollow inner cavity; the separation inner core (32) is configured to perform solid-liquid separation during the rotation process, and the separated liquid is configured to pass through The drain line (33) discharges. 13 . The multi-port metering valve according to claim 11 , wherein the sewage outlet ( 17 ) is arranged at the bottom of the valve body ( 1 ); the collection and delivery port ( 12 ) is arranged at the valve. On the side wall of the body (1), the collecting and delivery port (12) is further provided with a blocking part, and the blocking part is configured to allow the liquid to flow out. 14. The multi-port metering valve according to claim 11, further comprising a gate valve (18), the gate valve (18) being configured to close or open the sewage outlet (17). 15. An oil production system, characterized in that it comprises the multi-port metering valve according to any one of claims 1 to 14, wherein the liquid inlets (11) of the multi-port metering valve are respectively butted with corresponding oil pipelines together.

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