CN117145997A - Self-pressure-relief gate valve - Google Patents
Self-pressure-relief gate valve Download PDFInfo
- Publication number
- CN117145997A CN117145997A CN202311061312.9A CN202311061312A CN117145997A CN 117145997 A CN117145997 A CN 117145997A CN 202311061312 A CN202311061312 A CN 202311061312A CN 117145997 A CN117145997 A CN 117145997A
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- China
- Prior art keywords
- valve
- flashboard
- self
- valve rod
- gate valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 17
- 238000013022 venting Methods 0.000 claims description 12
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/04—Devices for relieving the pressure on the sealing faces for sliding valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The application relates to the technical field of gate valves, and provides a self-pressure-relief gate valve, which at least comprises: a valve body, the interior of which is provided with a valve cavity; the flashboard is movably inserted into the valve cavity; the valve rod is connected with the flashboard and is suitable for driving the flashboard to move; a first gas channel is formed between the valve rod and the flashboard; the flashboard is provided with a second gas channel; the valve stem has a sealed state that moves to a first position to block the first gas passage from the second gas passage, and an open state that moves to a second position to communicate the first gas passage with the second gas passage. The self-pressure-relief gate valve provided by the application can reduce the blocking effect of unbalanced medium force on the gate plate, avoid the gate plate from being strained and influence the tightness, and is beneficial to prolonging the service life of the self-pressure-relief gate valve, in particular to the self-pressure-relief gate valve with high pressure; moreover, the driving torque required by the valve rod and the flashboard is reduced, so that the power and the energy consumption of the driving device can be reduced, and the production and the use cost of the self-pressure-relieving gate valve are further reduced.
Description
Technical Field
The application relates to the technical field of gate valves, in particular to a self-pressure-relief gate valve.
Background
When the conventional gate valve is closed, torque is transmitted to the valve rod through the gear box, and the valve rod presses the gate plate downwards until the sealing surface of the gate plate is in close contact with the valve seat, so that the valve is sealed. When the valve is opened, the medium force acts on the flashboard, so that the contact force between the flashboard and the valve seat is increased, namely the friction force is increased by times, the valve is difficult to open at the moment, and when the valve is opened, the flashboard and the valve seat are easy to be strained due to the large contact force, so that the sealing performance of the gate valve is reduced, and leakage occurs.
Disclosure of Invention
Therefore, the technical problem to be solved by the application is to overcome the defects that when the gate valve in the prior art is opened, when the gate plate and the valve seat move relatively, the gate valve is easy to be strained, so that the sealing performance of the gate valve is reduced, leakage occurs, and the self-pressure-relief gate valve is provided.
In order to solve the technical problems, the technical scheme of the application is as follows:
the application provides a self-pressure relief gate valve, which at least comprises: a valve body, the interior of which is provided with a valve cavity; the flashboard is movably inserted into the valve cavity and used for blocking the upstream of the valve cavity and the downstream of the valve cavity; the valve rod is connected with the flashboard and is suitable for driving the flashboard to move, and the valve rod can move relative to the flashboard along the axial direction of the valve rod; a first gas channel is formed between the valve rod and the flashboard, and the first gas channel is communicated with the upstream of the valve cavity; the flashboard is provided with a second gas channel, and one end of the second gas channel is communicated with the downstream of the valve cavity; the valve stem has a sealed state that moves to a first position to block the first gas passage from the second gas passage, and an open state that moves to a second position to communicate the first gas passage with the second gas passage.
Further, a first clamping groove is formed in one face, facing the valve rod, of the valve rod, a first clamping block matched with the first clamping groove is arranged at one end, facing the valve rod, of the valve rod, the first clamping block is installed in the first clamping groove, and a first gas channel is formed between the outer wall of the first clamping block and the inner wall of the first clamping groove.
Further, the bottom surface of the first clamping groove is a hemispherical surface which is far away from the recess of the valve rod, and one end of the first clamping block, which faces the bottom surface of the first clamping groove, is provided with a spherical valve core which is matched with the hemispherical surface.
Further, one end of the spherical valve core, which faces the valve rod, is provided with a second clamping block, one surface of the valve rod, which faces the spherical valve core, is provided with a second clamping groove, and the second clamping block is installed in the second clamping groove.
Further, the first clamping block and the second clamping block are clamping blocks with T-shaped sections.
Further, the surface of the spherical valve core and the inner wall of the first clamping groove are provided with wear-resistant layers.
Further, the second gas channel comprises a vertical part and a horizontal part which are communicated; the vertical portion is far away from the one end of horizontal portion extends to the bottom surface of first draw-in groove, the horizontal portion is far away from the one end of vertical portion extends to the lateral wall of flashboard.
Further, a plurality of the second gas passages are provided at intervals along the circumferential direction of the shutter.
Further, a seat ring is arranged on the inner wall of the valve cavity, and when the flashboard blocks the upstream of the valve cavity and the downstream of the valve cavity, the outer wall of the flashboard abuts against the inner wall of the seat ring.
Further, the self-pressure relief gate valve further comprises a driving device which is connected with one end, far away from the flashboard, of the valve rod, and the driving device can drive the valve rod to move along the axial direction of the valve rod.
The technical scheme of the application has the following advantages:
when the valve rod moves downwards to the first position, the valve rod can block the first gas channel and the second gas channel, and when the valve rod moves continuously, the flashboard is forced to be inserted into the valve cavity until the flashboard completely blocks the upstream of the valve cavity and the downstream of the valve cavity. When the valve is opened, the valve rod moves upwards to a second position, the valve rod can be used for communicating the first gas channel with the second gas channel, at the moment, the medium at the upstream of the valve cavity and the medium at the downstream of the valve cavity are gradually balanced in pressure, the flashboard is released under the blocking effect of unbalanced medium force, and when the valve rod moves upwards, the flashboard is forced to be pulled out of the valve cavity, and the self-pressure-relief gate valve is opened. By the arrangement, the blocking effect of unbalanced medium force on the flashboard can be reduced, the flashboard is prevented from being strained, the tightness is prevented from being influenced, the service life of the self-pressure relief gate valve is prolonged, and the self-pressure relief gate valve is particularly high in pressure; moreover, the driving torque required by the valve rod and the flashboard is reduced, so that the power and the energy consumption of the driving device can be reduced, and the production and the use cost of the self-pressure-relieving gate valve are further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a self-venting gate valve in an embodiment of the application;
FIG. 2 is a schematic illustration of a valve stem of a self-venting gate valve in a first position in accordance with an embodiment of the present application;
FIG. 3 is a schematic illustration of a valve stem in a second position of a self-venting gate valve in accordance with an embodiment of the present application;
FIG. 4 is a schematic view of a first fixture block of the self-releasing gate valve according to an embodiment of the present application;
FIG. 5 is a schematic view of a spherical valve element in a self-relieving gate valve according to an embodiment of the present application;
fig. 6 is a schematic diagram of a first clamping groove in the self-pressure-relieving gate valve in an embodiment of the application.
1. A valve body; 2. a flashboard; 3. a valve stem; 4. a seat ring; 5. a driving device; 6. upstream of the valve chamber; 7. downstream of the valve chamber; 8. a first gas passage; 9. a second gas passage; 10. a spherical valve core; 11. a first clamping groove; 12. a first clamping block; 13. a second clamping groove; 14. a second clamping block; 15. a vertical portion; 16. a horizontal portion.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present application described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1, 2 and 3, the present embodiment provides a self-pressure relief gate valve, which at least includes: a valve body 1, the interior of which is provided with a valve cavity; the shutter 2 is movably inserted in the valve chamber to block an upstream 6 of the valve chamber and a downstream 7 of the valve chamber. When the flashboard 2 is inserted to a certain depth, the outer wall of the flashboard 2 is contacted with and abutted against the inner wall of the valve cavity, the upstream 6 of the valve cavity and the downstream 7 of the valve cavity are blocked, so that the self-pressure relief gate valve is closed, and when the flashboard 2 is pulled out upwards, the outer wall of the flashboard 2 is separated from the inner wall of the valve cavity, and the upstream 6 of the valve cavity is communicated with the downstream 7 of the valve cavity, so that the self-pressure relief gate valve is opened; a valve rod 3 connected to the shutter 2, adapted to drive the shutter 2 in motion, and the valve rod 3 being capable of moving in its own axial direction with respect to the shutter 2; a first gas channel 8 is formed between the valve rod 3 and the flashboard 2, and the first gas channel 8 is communicated with the upstream 6 of the valve cavity; the flashboard 2 is provided with a second gas channel 9, and one end of the second gas channel 9 is communicated with the downstream 7 of the valve cavity; the valve stem 3 has a sealed state that moves to a first position to block the first gas passage 8 from the second gas passage 9, and an open state that moves to a second position to communicate the first gas passage 8 with the second gas passage 9.
When the valve rod 3 moves downwards to the first position, the valve rod 3 can block the first gas channel 8 from the second gas channel 9, and at this time, when the valve rod 3 continues to move, the gate plate 2 is forced to be inserted into the valve cavity until the gate plate 2 completely blocks the upstream 6 and the downstream of the valve cavity. When the valve is opened, the valve rod 3 moves upwards to a second position, the valve rod 3 can be communicated with the first gas channel 8 and the second gas channel 9, at the moment, the upstream 6 and the downstream media of the valve cavity are gradually balanced in pressure, the flashboard 2 is released under the blocking effect of unbalanced media force, and when the valve rod 3 continues to move upwards, the flashboard 2 is forced to be pulled out of the valve cavity, and the self-pressure-relief gate valve is opened. By the arrangement, the blocking effect of unbalanced medium force on the flashboard 2 can be reduced, the flashboard 2 is prevented from being pulled, the tightness is prevented from being influenced, the service life of the self-pressure-relieving gate valve is prolonged, and the self-pressure-relieving gate valve is particularly high in pressure; in addition, the driving torque required by the valve rod 3 and the flashboard 2 is reduced, the power and the energy consumption of the driving device 5 can be reduced, and the production and the use cost of the self-pressure relief gate valve are further reduced.
Wherein, the flashboard 2 is provided with first draw-in groove 11 towards the one side of valve rod 3, and the one end of valve rod 3 towards flashboard 2 is provided with the first fixture block 12 with first draw-in groove 11 adaptation, and first fixture block 12 installs in first draw-in groove 11 and forms first gas passage 8 between the outer wall of first fixture block 12 and the inner wall of first draw-in groove 11. For example, the first clamping block 12 may be a clamping block with a T-shaped cross section, and the shape of the first clamping groove 11 is adapted to the shape of the first clamping block 12, so that when the valve rod 3 is lifted upwards, the first clamping block 12 will not fall out from the first clamping groove 11; moreover, since the valve rod 3 can move relative to the gate plate 2, the size of the first clamping groove 11 is slightly larger than that of the first clamping block 12, and a gap formed between the first clamping block 12 and the first clamping groove 11 can form the first gas channel 8, or can allow the first clamping block 12 to move in the first clamping groove 11 by a small extent.
As shown in fig. 6, wherein the second gas passage 9 includes a vertical portion 15 and a horizontal portion 16 in communication; the end of the vertical portion 15 away from the horizontal portion 16 extends to the bottom surface of the first clamping groove 11, at this time, the vertical portion 15 and the first gas passage 8 can communicate, and the end of the horizontal portion 16 away from the vertical portion 15 extends to the side wall of the shutter 2, at this time, the horizontal portion 16 remains in communication with the downstream 7 of the valve chamber. When the valve rod 3 moves to the first position, the first clamping block 12 abuts against the bottom surface of the first clamping groove 11, the vertical portion 15 is shielded by the first clamping block 12, and at this time, the vertical portion 15 and the first gas channel 8 are blocked. When the valve rod 3 moves to the second position, the first clamping block 12 is separated from the bottom surface of the first clamping groove 11, the first clamping block 12 cannot shield the vertical portion 15, at this time, the vertical portion 15 is in re-communication with the first gas channel 8, and at this time, the upstream 6 of the valve cavity is communicated with the downstream 7 of the valve cavity through the horizontal portion 16 and the end, away from the vertical portion 15, of the first gas channel 8.
Preferably, the bottom surface of the first clamping groove 11 is a hemispherical surface which is concave towards the direction away from the valve rod 3, and one end of the first clamping block 12, which faces the bottom surface of the first clamping groove 11, is provided with a spherical valve core 10 which is matched with the hemispherical surface. By this arrangement, not only the centering of the valve rod 3 can be facilitated, but also the sealing effect on the vertical portion 15 can be improved by the spherical valve element 10.
The surface of the spherical valve core 10 and the inner wall of the first clamping groove 11 can be overlaid with a wear-resistant layer so as to reduce wear of the spherical valve core and the first clamping groove.
As shown in fig. 4 and 5, a second clamping block 14 is disposed at one end of the spherical valve core 10 facing the valve rod 3, a second clamping groove 13 is disposed at one surface of the valve rod 3 facing the spherical valve core 10, and the second clamping block 14 is installed in the second clamping groove 13. For example, the second clamping block 14 is a clamping block with a T-shaped cross section, and the shape of the second clamping groove 13 is matched with the shape of the second clamping block 14, so that the second clamping block 14 cannot fall off from the second clamping groove 13 when the valve rod 3 is lifted upwards. For example, the second clamping block 14 and the second clamping groove 13 may be in interference fit.
Here, a plurality of second gas passages 9 may be provided at intervals along the circumferential direction of the shutter 2, for example, two second gas passages 9 may be symmetrically provided at both left and right sides of the shutter 2.
The inner wall of the valve cavity can be fixedly provided with the seat ring 4, and when the flashboard 2 is in a sealing state, the outer wall of the flashboard 2 abuts against the inner wall of the seat ring 4, so that the sealing performance is improved.
The self-pressure relief gate valve further comprises a driving device 5, wherein the driving device 5 is connected with one end, far away from the flashboard 2, of the valve rod 3, and the driving device 5 can drive the valve rod 3 to move along the axial direction of the self-pressure relief gate valve. For example, the driving device 5 may be a combination of a motor and a gear, a combination of a motor and a screw nut, a cylinder or a hydraulic cylinder, or the like, or the driving device 5 may be replaced by another device capable of making the valve rod 3 perform linear motion.
When the self-pressure-relief gate valve is used, when the self-pressure-relief gate valve is closed, the valve rod firstly transmits thrust to the spherical valve core, the spherical valve core is transmitted to the gate plate after being contacted with the hemispherical surface sunken in the gate plate, the gate plate is tightly contacted with the seat ring, sealing is achieved, and at the moment, the spherical valve core and the hemispherical surface are sealed, so that the second gas channel is blocked. When the self-pressure-relief gate valve is opened, the valve rod is lifted upwards, and the valve rod drives the spherical valve core, so that the spherical valve core is separated from the hemispherical surface on the gate plate, at the moment, the second gas channel is communicated with the first gas channel, upstream and downstream media in the valve cavity are gradually pressure-balanced, the gate plate is not subjected to unbalanced media force any more, the contact force between the gate plate and the seat ring is relieved, at the moment, the valve rod is lifted upwards continuously, the valve rod drives the gate plate to ascend, and the self-pressure-relief gate valve is opened.
In conclusion, the self-pressure relief gate valve can prolong the service life of the gate valve, in particular to a high-pressure gate valve; in addition, the driving torque required by the gate valve is reduced, and a driving device with smaller power consumption can be selected, so that the gate valve cost is reduced; and the external bypass valve is not required to be additionally arranged outside the valve body, so that the overall sealing performance of the gate valve is improved.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the application.
Claims (10)
1. A self-venting gate valve, comprising at least:
a valve body, the interior of which is provided with a valve cavity;
the flashboard is movably inserted into the valve cavity and used for blocking the upstream of the valve cavity and the downstream of the valve cavity;
the valve rod is connected with the flashboard and is suitable for driving the flashboard to move, and the valve rod can move relative to the flashboard along the axial direction of the valve rod;
a first gas channel is formed between the valve rod and the flashboard, and the first gas channel is communicated with the upstream of the valve cavity; the flashboard is provided with a second gas channel, and one end of the second gas channel is communicated with the downstream of the valve cavity;
the valve stem has a sealed state that moves to a first position to block the first gas passage from the second gas passage, and an open state that moves to a second position to communicate the first gas passage with the second gas passage.
2. The self-venting gate valve of claim 1, wherein,
the valve rod is provided with a first clamping groove towards one face of the valve rod, one end of the valve rod towards the valve rod is provided with a first clamping block matched with the first clamping groove, the first clamping block is installed in the first clamping groove, and a first gas channel is formed between the outer wall of the first clamping block and the inner wall of the first clamping groove.
3. The self-venting gate valve of claim 2, wherein,
the bottom surface of first draw-in groove is for keeping away from the sunken hemisphere of valve rod, first fixture block orientation the one end of the bottom surface of first draw-in groove be provided with hemisphere looks adaptation spherical case.
4. A self-venting gate valve as defined in claim 3, wherein,
the one end that the sphere case faced the valve rod is provided with the second fixture block, the valve rod orientation the one side of sphere case is provided with the second draw-in groove, the second fixture block is installed in the second draw-in groove.
5. The self-venting gate valve of claim 4, wherein,
the first clamping block and the second clamping block are clamping blocks with T-shaped sections.
6. A self-venting gate valve as defined in claim 3, wherein,
and the surface of the spherical valve core and the inner wall of the first clamping groove are respectively provided with a wear-resistant layer.
7. The self-relieving gate valve according to any one of claim 2 to 6, wherein,
the second gas channel comprises a vertical part and a horizontal part which are communicated with each other;
the vertical portion is far away from the one end of horizontal portion extends to the bottom surface of first draw-in groove, the horizontal portion is far away from the one end of vertical portion extends to the lateral wall of flashboard.
8. The self-venting gate valve of claim 7, wherein,
a plurality of second gas passages are provided at intervals along the circumferential direction of the shutter.
9. The self-venting gate valve of claim 1, wherein,
the inner wall of the valve cavity is provided with a seat ring, and when the flashboard blocks the upstream of the valve cavity and the downstream of the valve cavity, the outer wall of the flashboard abuts against the inner wall of the seat ring.
10. The self-venting gate valve of claim 1, wherein,
the valve rod is connected with the valve rod through a connecting rod, and the valve rod is connected with the valve rod through a connecting rod.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202311061312.9A CN117145997A (en) | 2023-08-22 | 2023-08-22 | Self-pressure-relief gate valve |
Applications Claiming Priority (1)
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CN202311061312.9A CN117145997A (en) | 2023-08-22 | 2023-08-22 | Self-pressure-relief gate valve |
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CN117145997A true CN117145997A (en) | 2023-12-01 |
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CN202311061312.9A Pending CN117145997A (en) | 2023-08-22 | 2023-08-22 | Self-pressure-relief gate valve |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117386836A (en) * | 2023-12-13 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
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2023
- 2023-08-22 CN CN202311061312.9A patent/CN117145997A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117386836A (en) * | 2023-12-13 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
CN117386836B (en) * | 2023-12-13 | 2024-02-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Quick response coaxial valve suitable for pulse wind tunnel and application method thereof |
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