CN116006701B - Cage sleeve type throttle valve - Google Patents
Cage sleeve type throttle valve Download PDFInfo
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- CN116006701B CN116006701B CN202310143895.3A CN202310143895A CN116006701B CN 116006701 B CN116006701 B CN 116006701B CN 202310143895 A CN202310143895 A CN 202310143895A CN 116006701 B CN116006701 B CN 116006701B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The invention belongs to the technical field of petroleum and natural gas engineering, and discloses a cage-type throttle valve, which comprises a valve body, wherein a flow regulating assembly is arranged on the valve body, a valve core assembly is arranged in the valve body, an air inlet channel is positioned at one side of the valve core assembly, and the bottom of the valve core assembly is communicated with an air outlet channel; the flow regulating assembly comprises a valve rod and a flow regulating sleeve connected with the valve rod, the valve core assembly comprises three layers of cage sleeves arranged from outside to inside, the inner wall of the flow regulating sleeve is tightly attached to the cage sleeve on the outermost layer, orifices are distributed on each layer of cage sleeve, and the valve rod drives the flow regulating sleeve to move up and down, so that the opening of the cage sleeve on the outermost layer is changed to regulate the gas flow; the cage-type throttle valve has the advantages of simple and compact structure, gas erosion resistance and accurate pressure regulation.
Description
Technical Field
The invention belongs to the technical field of petroleum and natural gas engineering, and particularly relates to a cage sleeve type throttle valve.
Background
Natural gas wellheads typically have relatively high pressures and natural gas gathering lines can withstand limited pressures, so that it is necessary to throttle and depressurize the natural gas at the wellhead. The throttle reducing valve used at the natural gas wellhead at the present stage has various types, such as a fixed oil nozzle, a needle valve, a wedge valve, a cage type throttle valve and the like. Cage-type throttle valves are widely used in oil and gas fields due to their relatively precise flow regulation range.
The common cage-type throttle valve in the current market is a single-layer cage sleeve, namely, only one layer of throttle holes distributed according to a certain rule are arranged on the cage sleeve, and the overflow area of the throttle holes is changed through sliding of the valve sleeve on the cage sleeve, so that flow regulation is realized. But the throttling effect of the single-layer cage is limited, and the cage and the valve sleeve are subjected to high-speed impact of gas, so that the cage and the valve sleeve are very easy to erode and damage. According to statistics, the cage sleeve type throttle valve used for the domestic high-pressure oil and gas field has the advantages that the cage sleeve is replaced once about 1 month on average, the service life of the cage sleeve is short, the cost is obviously increased due to frequent replacement of the cage sleeve, and meanwhile, the production efficiency is seriously influenced. Meanwhile, although a plurality of layers of cage type throttle valves are arranged, cage type throttle holes of the plurality of layers of cage type throttle valves are not reasonably distributed, so that the gas flow cannot be linearly regulated along with the change of the opening degree of the valve sleeve.
Disclosure of Invention
The present invention aims to solve the above technical problems at least to some extent. To this end, the invention aims to provide a cage-type throttle valve.
The technical scheme adopted by the invention is as follows:
the cage sleeve type throttle valve comprises a valve body, wherein a flow regulating assembly is arranged on the valve body, a valve core assembly is arranged in the valve body, an air inlet channel and an air outlet channel are formed in the valve body, the air inlet channel is positioned at one side of the valve core assembly, and the bottom of the valve core assembly is communicated with the air outlet channel; the flow regulating assembly comprises a valve rod and a flow regulating sleeve connected with the valve rod, the valve core assembly comprises three layers of cage sleeves arranged from outside to inside, the inner wall of the flow regulating sleeve is tightly attached to the cage sleeve on the outermost layer, orifices are distributed on each layer of cage sleeve, and the orifices on each layer of cage sleeve are correspondingly penetrated in the axial direction one by one; the valve rod drives the flow regulating sleeve to move up and down, so that the opening of the outermost cage sleeve is changed to regulate the gas flow; the orifices on each layer of cage cover are divided into a plurality of rows of holes from top to bottom, the first row of holes and the last row of holes are N semicircular holes, the rest rows of holes are N circular holes, and the circle center connecting line of each row of holes is different from the circle center connecting line of one row of holes below the same by a distance of one hole radius in the vertical direction.
Preferably, a pressure regulating assembly is arranged between the valve core assembly and the air outlet channel, the pressure regulating assembly comprises a pressure control seat, the upper part of the inner wall of the pressure control seat is an inner conical surface, a plurality of sliding grooves are uniformly distributed on the inner conical surface wall, and the sliding grooves are arranged along the direction of a bus of the inner conical surface; the sliding block is arranged in the sliding groove and connected with the pressure control valve, a central through hole is formed in the plurality of pressure control valves in a surrounding mode, a plurality of hydraulic rods are arranged on the pressure control seat, each hydraulic rod is connected with one pressure control valve, and the hydraulic rods are used for controlling the pressure control valve to move up and down.
Preferably, the outer wall of the upper part of the pressure control valve is an outer conical surface matched with the inner conical surface of the pressure control seat, and the sliding block is connected with the pressure control valve through a tension spring.
Preferably, the pressure control seat is provided with a plurality of hinge joints, each pressure control flap is also provided with a hinge joint, the hinge joints on the pressure control seat and the hinge joints on the pressure control flaps are arranged in one-to-one correspondence, and a hydraulic rod is arranged between the two corresponding hinge joints.
Preferably, the flow regulating assembly further comprises a valve rod sealing sleeve, the valve rod movably penetrates through the valve rod sealing sleeve, the outer conical surface at the bottom of the valve rod sealing sleeve is attached to the inner conical surface at the top of the valve body, the union nut is connected with the valve body, and the flange at the top of the union nut is abutted to the flange at the bottom of the valve rod sealing sleeve.
Preferably, the bottom of the valve rod is in a circular truncated cone structure, the upper end face of the circular truncated cone structure is abutted against the inner step of the flow regulating sleeve, an annular groove is formed in the middle of the valve rod, and a split ring is installed in the annular groove and is abutted against the top of the flow regulating sleeve.
Preferably, a circle of boss is arranged at the middle position inside the valve rod sealing sleeve, a fixing ring is arranged on the split ring, and the outer wall of the fixing ring is attached to the inner wall of the valve rod sealing sleeve.
Preferably, the valve rod sealing sleeve is provided with a mounting seat, the top of the mounting seat is provided with a motor, and the valve rod is connected with the motor.
Preferably, the valve rod sealing sleeve is internally provided with a sealing pressing sleeve and a valve rod sealing ring, and the valve rod movably penetrates through the sealing pressing sleeve and the valve rod sealing ring.
Preferably, the valve core assembly further comprises a valve core body and a valve core sleeve, the three layers of the cage sleeves are all arranged on the valve core body, the valve core body is arranged on the valve core sleeve, and the valve core sleeve is arranged on the valve body.
When the cage type throttling valve works, high-pressure natural gas extracted from the bottom of a well enters an outer cage of the three-layer cage through an air inlet channel, and after the first throttling, the flow speed is increased, and the pressure is reduced; the gas sequentially passes through the middle layer cage sleeve and the inner layer cage sleeve, the gas pressure is greatly reduced through three times of throttling, and the flow area of the cage sleeve orifice is changed through the flow adjusting sleeve, so that the purpose of adjusting the flow is realized. The three-layer cage sleeve greatly reduces the pressure of natural gas, but the pressure difference between the inside and the outside of the cage sleeve is still large, and the erosion of gas to the cage sleeve, particularly the outer-layer cage sleeve, is still obvious, at the moment, the relative position of the pressure control valve is changed through the pressure adjusting assembly, so that the flow area of the central through hole is adjusted, the gas pressure in the cage sleeve is increased, the pressure difference between the inside and the outside of the cage sleeve is greatly reduced, the erosion effect of the cage sleeve is greatly reduced, and the service life of the cage sleeve is effectively prolonged; and when the natural gas yield is required to be improved, the overflow area of the central through hole is increased only by the pressure adjusting assembly, and the opening of the cage sleeve is increased by the flow adjusting assembly.
The beneficial effects of the invention are as follows:
the cage type throttle valve provided by the invention has the characteristics of simple structure, strong erosion resistance and capability of accurately adjusting the gas flow, and can greatly improve the resistance of the cage to gas erosion and greatly prolong the service life of the cage. The throttling structure combining the three layers of the cage sleeves and the pressure adjusting assembly can achieve a quadruple throttling effect on gas, meanwhile, the pressure adjusting assembly can greatly reduce the pressure difference and the gas flow velocity inside and outside the three layers of the cage sleeves, and reduce erosion suffered by the cage sleeves, so that the service life of the cage sleeves is prolonged, and coordinated control between the gas flow and the service life of the cage sleeves is achieved. The orifices on the cage sleeve are distributed along the circumferential direction of the cage sleeve, the flow passing areas of the orifices in each row from top to bottom are overlapped by half orifice areas, the linear change of the flow passing areas of the orifices in the moving process of the flow regulating sleeve is ensured, and therefore, the accurate linear control of the flow is ensured.
Drawings
Fig. 1 is a perspective view of a cage-type throttle valve of the present invention.
FIG. 2 is a cross-sectional view of the cage-type throttle valve of the present invention.
FIG. 3 is a schematic view of a flow regulating assembly of the present invention.
FIG. 4 is a schematic illustration of a valve cartridge assembly of the present invention.
FIG. 5 is an expanded view of the orifice arrangement on the cage of the present invention.
FIG. 6 is a block diagram of the pressure regulating assembly of the present invention with the largest central through hole area.
FIG. 7 is a cross-sectional view of the pressure regulating assembly of the present invention with the largest central through hole area.
FIG. 8 is a block diagram of the pressure regulating assembly of the present invention with minimal central through hole area.
FIG. 9 is a cross-sectional view of the pressure regulating assembly of the present invention with a minimum center through hole area.
FIG. 10 is a graph of cage opening versus gas flow in accordance with the present invention.
In the figure: 1-a valve body; 2-a valve core assembly; 21-an inner layer cage; 22-middle layer cage sleeve; 23-an outer cage; 24-valve core body; 25-valve core sleeve; 26-orifice; 3-a pressure regulating assembly; 31-a pressure control seat; 32-sliding grooves; 33-a slider; 34-controlling pressure valve; 35-hydraulic lever; 36-a tension spring; 4-an intake passage; 5-an air outlet channel; 61-valve stem; 62-a flow regulating sleeve; 63-stem gland; 64-valve stem seal ring; 65-union nut; 66-split rings; 67-a fixed ring; 68, sealing and pressing the sleeve; 69-motor.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the embodiments of the present invention, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in place when the product of the present invention is used, or the orientation or positional relationship conventionally understood by those skilled in the art is merely for convenience of describing the present invention and simplifying the description, and is not indicative or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements.
As shown in fig. 1 to 4, a cage-type throttle valve of this embodiment includes a valve body 1, a flow regulating assembly is provided on the valve body 1, a valve core assembly 2 is provided in the valve body 1, an air inlet channel 4 and an air outlet channel 5 are provided on the valve body 1, the air inlet channel 4 is located at one side of the valve core assembly 2, and the bottom of the valve core assembly 2 is communicated with the air outlet channel 5. The flow regulation assembly comprises a valve rod 61 and a flow regulation sleeve 62, wherein the bottom of the valve rod 61 is fixedly connected with the flow regulation sleeve 62 through threads, the valve core assembly 2 comprises three layers of cage sleeves which are arranged from outside to inside, each three layers of cage sleeves comprises three concentric cage sleeves with different inner diameters, each three layers of cage sleeves respectively comprises an outer layer cage sleeve 23, a middle layer cage sleeve 22 and an inner layer cage sleeve 21 from outside to inside, the inner wall of the flow regulation sleeve 62 is tightly attached to the outer layer cage sleeve 23, the flow regulation sleeve 62 can move up and down along the outer layer cage sleeve 23, and the valve rod 61 drives the flow regulation sleeve 62 to move up and down, so that the opening of the outermost layer cage sleeve is changed to regulate the gas flow.
The orifices 26 are distributed on each layer of the cage sleeve, and the orifices 26 on each layer of the cage sleeve are correspondingly penetrated in the axial direction one by one. As shown in fig. 5, the orifices 26 on each layer of the cage are divided into six rows of holes from top to bottom, the first row of holes and the last row of holes are two semicircular holes, the rest rows of holes are two circular holes, and the circle center connecting line of each row of holes is different from the circle center connecting line of one row of holes below the holes by a distance of one hole radius in the vertical direction. The flow regulating sleeve 62 is closed from the maximum opening, when the first row of holes is completely closed, the whole overflow area is closed by two hole areas, when the second row of holes is completely closed, the whole overflow area is closed by four hole areas, which is equivalent to the fact that the flow regulating sleeve 62 is closed for a certain distance each time, the reduction of the overflow area of the orifices on the cage sleeve is equal, the orifices realize accurate linear control on the gas flow in the arrangement mode, and the relation diagram of the opening of the cage sleeve and the gas flow is shown in fig. 10 when the flow regulating sleeve is moved at a uniform speed, and the change of the opening of the cage sleeve and the change of the gas flow of the cage sleeve type throttle valve are in linear relation.
The valve core assembly 2 further comprises a valve core body 24 and a valve core sleeve 25, the three layers of cage sleeves are all arranged on the valve core body 24, the valve core body 24 is arranged on the valve core sleeve 25, and the valve core sleeve 25 is fixedly arranged on the valve body 1 through threads. After the gas enters from the air inlet channel 4, the gas firstly flows into the middle layer cage 22 through the orifices of the outer layer cage 23 and further flows into the inner layer cage 21, and at the moment, the outer wall of the outer layer cage 23 and the orifices of each cage are impacted by a large airflow, especially the orifices of each cage. The flow rate of the gas at the orifice is very high, and solid sand is often carried in the gas, which can easily erode the orifice inner wall and the outlet edge. At this time, a pressure regulating assembly 3 is arranged between the valve core assembly 2 and the air outlet channel 5, the pressure regulating assembly 3 comprises a pressure control seat 31, the upper part of the inner wall of the pressure control seat 31 is an inner conical surface, three sliding grooves 32 are uniformly distributed on the inner conical surface wall, and the sliding grooves 32 are arranged along the direction of a bus of the inner conical surface; the sliding block 33 is installed in the sliding groove 32, the sliding block 33 is connected with the pressure control valve 34, a central through hole is surrounded by the three pressure control valve 34, a plurality of hydraulic rods 35 are installed on the pressure control seat 31, each hydraulic rod 35 is connected with one pressure control valve 34, the hydraulic rods 35 are used for controlling the pressure control valve 34 to move up and down, the pressure control valve 34 changes the area of the central through hole by moving up and down synchronously, and the area of the central through hole is always smaller than the area of an outlet of the valve core body 24.
As shown in fig. 6 to 9, when the three pressure control flaps 34 are closed, the central through hole is a circular through hole, and the through hole has the smallest flow area; the hydraulic rod 35 drives the pressure control valve 34 to move along the inner conical surface of the pressure control seat 31 through expansion and contraction, so that the flow area of the central through hole is changed. When the gas passes through the central through hole of the pressure adjusting assembly, the gas is decelerated and pressurized again due to the reduction of the gas flow area, so that the pressure in the area above the central through hole, namely the area where the cage sleeve is positioned, is increased, the pressure difference between the inner layer cage sleeve and the outer layer cage sleeve is greatly reduced, the erosion effect of the cage sleeve is greatly reduced, and the service life of the cage sleeve is greatly prolonged. Meanwhile, the gas flow area of the central through hole can be changed by adjusting the relative position of the pressure control valve, so that the flow of gas is changed together with the flow adjusting assembly, and the accurate control of the flow of gas is realized; in addition, the opening degree of the central through hole of the pressure regulating assembly also determines the erosion degree of the cage, so that the combined action of the pressure regulating assembly and the flow regulating assembly also realizes the coordination control between the service life of the cage and the gas flow.
The outer wall of the upper part of the pressure control valve 34 is an outer conical surface matched with the inner conical surface of the pressure control seat 31, the sliding block 33 is connected with the pressure control valve 34 through a tension spring 36, the tension spring 36 tightly presses the pressure control valve 34 on the inner conical surface of the pressure control seat 31, and when the pressure control valve 34 moves up and down along with the hydraulic rod 35, the pressure control valve 34 slides along the generatrix direction of the inner conical surface of the pressure control seat 31, so that the change of the area of the central through hole is controlled.
The pressure control seat 31 is provided with a plurality of hinge joints, each pressure control flap 34 is also provided with a hinge joint, the hinge joints on the pressure control seat 31 and the hinge joints on the pressure control flaps 34 are arranged in one-to-one correspondence, and the hydraulic rod 35 is arranged between the two corresponding hinge joints.
The flow regulating assembly further comprises a valve rod sealing sleeve 63, a sealing pressing sleeve 68 and a valve rod sealing ring 64 are arranged in the valve rod sealing sleeve 63, the sealing pressing sleeve 68 is fixedly connected with the valve rod sealing sleeve 63 through threads, and the valve rod 61 penetrates through the sealing pressing sleeve 68 and the valve rod sealing ring 64 and stretches into the valve rod sealing sleeve 63 and the valve body 1. The valve rod gland 63 is provided with a mounting seat, the top of the mounting seat is provided with a motor 69, and the valve rod 61 is connected with the motor 69. The valve rod 61 is driven by a motor 69 to move up and down in the valve body.
The outer conical surface at the bottom of the valve rod sealing sleeve 63 is attached to the inner conical surface at the top of the valve body 1, an annular groove is formed in the outer conical surface of the valve rod sealing sleeve 63, and a sealing ring is arranged in the annular groove. The union nut 65 is connected with the valve body 1 through threads, meanwhile, the top flange of the union nut 65 is abutted against the bottom flange of the valve rod sealing sleeve 63, and under the screwing effect of the threads, the union nut 65 extrudes the valve rod sealing sleeve 63 so that the outer conical surface at the bottom of the valve rod sealing sleeve 63 is tightly attached to the inner conical surface at the top of the valve body 1 to realize sealing.
The bottom of the valve rod 61 is of a truncated cone structure, the upper end face of the truncated cone structure is abutted against the inner step of the flow regulating sleeve 62, an annular groove is formed in the middle of the valve rod 61, a split ring 66 is installed in the annular groove, the split ring 66 is abutted against the top of the flow regulating sleeve 62, and the flow regulating sleeve 62 is driven to move downwards through the split ring 66 in the downward moving process of the valve rod 61. The middle position inside the valve rod sealing sleeve 63 is provided with a circle of boss, the outer wall circumference of the split ring 66 is provided with a fixing ring 67, the outer wall of the fixing ring 67 is attached to the inner wall of the valve rod sealing sleeve 63, sealing and limiting functions are achieved, when the valve rod 61 moves upwards, the upper end face of the circular truncated cone structure at the bottom of the valve rod 61 drives the flow regulating sleeve 62 to move upwards, axial limiting is carried out through the fixing ring 67, and when the split ring 66 moves upwards to the boss, the split ring 66 is blocked and limited to stop moving.
The invention is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present invention, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present invention, fall within the scope of protection of the present invention.
Claims (9)
1. A cage-type throttle valve, characterized in that: the valve comprises a valve body (1), wherein a flow regulating assembly is arranged on the valve body (1), a valve core assembly (2) is arranged in the valve body (1), an air inlet channel (4) and an air outlet channel (5) are formed in the valve body (1), the air inlet channel (4) is positioned on one side of the valve core assembly (2), and the bottom of the valve core assembly (2) is communicated with the air outlet channel (5); the flow regulating assembly comprises a valve rod (61) and a flow regulating sleeve (62) connected with the valve rod (61), the valve core assembly (2) comprises three layers of cage sleeves arranged from outside to inside, the inner wall of the flow regulating sleeve (62) is tightly attached to the cage sleeve on the outermost layer, orifices (26) are distributed on each layer of cage sleeve, and the orifices (26) on each layer of cage sleeve are correspondingly penetrated in the axial direction one by one; the valve rod (61) drives the flow regulating sleeve (62) to move up and down, so that the opening of the outermost cage sleeve is changed to regulate the gas flow; the orifices (26) on each layer of cage cover are divided into a plurality of rows of holes from top to bottom, the first row of holes and the last row of holes are N semicircular holes, the rest rows of holes are N circular holes, and the circle center connecting line of each row of holes is different from the circle center connecting line of one row of holes below the holes by a distance of one hole radius in the vertical direction;
a pressure regulating assembly (3) is arranged between the valve core assembly (2) and the air outlet channel (5), the pressure regulating assembly (3) comprises a pressure control seat (31), the upper part of the inner wall of the pressure control seat (31) is an inner conical surface, a plurality of sliding grooves (32) are uniformly distributed on the inner conical surface wall, and the sliding grooves (32) are arranged along the direction of a bus of the inner conical surface; the sliding chute (32) is internally provided with a sliding block (33), the sliding block (33) is connected with the pressure control valve (34), a central through hole is formed by surrounding a plurality of pressure control valves (34), the pressure control seat (31) is provided with a plurality of hydraulic rods (35), each hydraulic rod (35) is connected with one pressure control valve (34), and the hydraulic rods (35) are used for controlling the pressure control valve (34) to move up and down.
2. The cage-type throttle valve according to claim 1, wherein: the outer wall of the upper part of the pressure control valve (34) is an outer conical surface matched with the inner conical surface of the pressure control seat (31), and the sliding block (33) is connected with the pressure control valve (34) through a tension spring (36).
3. The cage-type throttle valve according to claim 1, wherein: the pressure control seat (31) is provided with a plurality of hinge joints, each pressure control flap (34) is also provided with a hinge joint, the hinge joints on the pressure control seat (31) are arranged in one-to-one correspondence with the hinge joints on the pressure control flaps (34), and a hydraulic rod (35) is arranged between the two corresponding hinge joints.
4. The cage-type throttle valve according to claim 1, wherein: the flow regulation assembly further comprises a valve rod sealing sleeve (63), the valve rod (61) movably penetrates through the valve rod sealing sleeve (63), the outer conical surface at the bottom of the valve rod sealing sleeve (63) is attached to the inner conical surface at the top of the valve body (1), a union nut (65) is connected with the valve body (1), and the flange at the top of the union nut (65) is abutted to the flange at the bottom of the valve rod sealing sleeve (63).
5. The cage-type throttle valve according to claim 4, wherein: the bottom of the valve rod (61) is of a truncated cone structure, the upper end face of the truncated cone structure is abutted against the inner step of the flow regulating sleeve (62), an annular groove is formed in the middle of the valve rod (61), a splicing ring (66) is arranged in the annular groove, and the splicing ring (66) is abutted against the top of the flow regulating sleeve (62).
6. The cage-type throttle valve according to claim 5, wherein: a circle of boss is arranged in the middle of the inside of the valve rod sealing sleeve (63), a fixing ring (67) is arranged on the splicing ring (66), and the outer wall of the fixing ring (67) is attached to the inner wall of the valve rod sealing sleeve (63).
7. The cage-type throttle valve according to claim 4, wherein: the valve rod sealing sleeve (63) is provided with a mounting seat, a motor (69) is mounted at the top of the mounting seat, and the valve rod (61) is connected with the motor (69).
8. The cage-type throttle valve according to claim 4, wherein: the valve rod sealing sleeve (63) is internally provided with a sealing pressing sleeve (68) and a valve rod sealing ring (64), and the valve rod (61) movably penetrates through the sealing pressing sleeve (68) and the valve rod sealing ring (64).
9. The cage-type throttle valve according to claim 1, wherein: the valve core assembly (2) further comprises a valve core body (24) and a valve core sleeve (25), the three-layer cage sleeves are all arranged on the valve core body (24), the valve core body (24) is arranged on the valve core sleeve (25), and the valve core sleeve (25) is arranged on the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310143895.3A CN116006701B (en) | 2023-02-21 | 2023-02-21 | Cage sleeve type throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310143895.3A CN116006701B (en) | 2023-02-21 | 2023-02-21 | Cage sleeve type throttle valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116006701A CN116006701A (en) | 2023-04-25 |
| CN116006701B true CN116006701B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310143895.3A Active CN116006701B (en) | 2023-02-21 | 2023-02-21 | Cage sleeve type throttle valve |
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| CN (1) | CN116006701B (en) |
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