CN220551583U - Throttle cut-off emptying valve - Google Patents
Throttle cut-off emptying valve Download PDFInfo
- Publication number
- CN220551583U CN220551583U CN202321823999.0U CN202321823999U CN220551583U CN 220551583 U CN220551583 U CN 220551583U CN 202321823999 U CN202321823999 U CN 202321823999U CN 220551583 U CN220551583 U CN 220551583U
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- CN
- China
- Prior art keywords
- valve
- guide sleeve
- energy storage
- valve clack
- storage cavity
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Links
- 238000011010 flushing procedure Methods 0.000 claims abstract description 30
- 238000004146 energy storage Methods 0.000 claims abstract description 24
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 101001017827 Mus musculus Leucine-rich repeat flightless-interacting protein 1 Proteins 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model discloses a throttling cut-off emptying valve, relates to the technical field of valves, and solves the problem of ash adhesion on a guide sleeve. A guide sleeve is arranged between the valve cover and the valve seat, one side of the guide sleeve is axially provided with a multi-channel orifice, an energy storage cavity capable of flowing in media is further arranged in the guide sleeve, the energy storage cavity is positioned in an area between the valve clack and the valve cover, a flushing channel is arranged in the valve clack, the flushing channel penetrates through the self-balancing cavity to the peripheral wall of the valve clack, and when the valve clack is opened, the media in the energy storage cavity impact the inner wall of the guide sleeve through the flushing channel. The medium stored in the energy storage cavity is utilized, the pressure of the medium is released through the flushing channel in the rising process of the valve clack, and then the inner wall of the guide sleeve and the throttling hole are flushed, so that attachments such as ash residues attached to the inner wall of the guide sleeve are separated from and fall off, the phenomenon that the valve clack is scraped by friction with the ash residues in the opening and closing moving process is reduced, leakage or blockage is not easy to occur, the long-term throttling effect is maintained, and the valve is used for a longer time.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a throttling cut-off emptying valve.
Background
The throttling cut-off emptying valve is usually used as a regulating control or cut-off, is a novel throttling, cut-off and emptying product, and has the characteristics of multistage throttling effect, obvious throttling effect, reliable sealing, convenient operation and maintenance and the like. The Chinese patent of the prior art discloses a balanced throttling cut-off emptying valve (publication No. CN 209414628U), which comprises a valve body, a valve cover and a valve rod, wherein a valve cavity communicated with an inlet end and an outlet end is arranged in the valve body, a valve seat is arranged in the valve cavity, a guide sleeve is arranged between the valve cover and the valve seat, a valve clack is arranged at one end of the valve rod in the guide sleeve, a balance cavity for balancing the pressure at two ends of the valve clack is also arranged in the guide sleeve, the balance cavity is positioned in an area between the valve clack and the valve cover, and a multichannel throttling hole is arranged at one side of the guide sleeve along the axial direction of the guide sleeve. The multi-channel throttle hole is arranged on the guide sleeve, so that the flow can be regulated according to the opening degree of the valve clack, and the throttle effect is achieved. However, problems are more in actual application to severe working conditions, particularly under the conditions of high pressure difference and unclean working condition mediums (such as dust ash, sludge and the like), ash residues of the mediums can be adhered to the inner wall of a guide sleeve or blocked in an orifice after long-term use, a valve clack is rubbed with the ash residues in the opening and closing moving process to be scratched, the leakage condition is easy to occur, even serious blocking occurs, the orifice is blocked, the throttling effect is reduced, and the normal use of the valve is influenced.
Disclosure of Invention
The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides a throttling cut-off emptying valve, which solves the problem of ash adhesion on a guide sleeve.
The technical scheme of the utility model is as follows: the valve comprises a valve clack, a valve body, a valve cover, a valve seat and a valve rod, wherein a guide sleeve is arranged between the valve cover and the valve seat, one side of the guide sleeve is axially provided with a multi-channel throttling hole, an energy storage cavity capable of flowing in media is further arranged in the guide sleeve, the energy storage cavity is positioned in an area between the valve clack and the valve cover, a flushing channel is arranged in the valve clack, the flushing channel penetrates through the self-balancing cavity to the peripheral wall of the valve clack, and media in the energy storage cavity impact the inner wall of the guide sleeve through the flushing channel when the valve clack is opened.
By adopting the technical scheme, the medium stored in the energy storage cavity is utilized, the pressure of the medium is released through the flushing channel in the rising process of the valve clack, and then the inner wall of the guide sleeve and the throttle hole are flushed, so that attachments such as ash residues attached to the inner wall of the guide sleeve are separated from falling off, the phenomenon that the valve clack is scraped by friction with the ash residues in the opening and closing moving process is reduced, leakage or blocking is not easy to occur, the long-term throttling effect is maintained, and the valve is used for a longer time.
In one possible design, the flushing channel comprises an inlet hole and an outlet hole which are communicated with each other, the inlet hole is communicated with the energy storage cavity, and the orifice of the outlet hole is covered and sealed by the inner wall of the guide sleeve when the valve clack is in a closed state.
By adopting the design, the medium pressure in the energy storage cavity is prevented from being released when the valve is closed, and the energy storage cavity is ensured to store energy smoothly.
In one possible design, the outlet orifice is located near the bottom end of the valve flap of the valve seat.
By adopting the design, in the process of upward movement of the valve clack, the outlet hole is flushed with the guide sleeve from bottom to top, and the coverage surface of the flushing process is enlarged.
In one possible design, the outlet holes have a plurality of holes, the hole diameter of the outlet holes being smaller than the hole diameter of the inlet holes.
By adopting the design, the outlet holes can be flushed at more positions, the flushing range is more comprehensive, the medium punched from the outlet holes has higher pressure, the impact force is enhanced, and the flushing is more thorough and cleaner.
In one possible embodiment, the flushing channel has at least two groups, which are arranged in rows and uniformly around the central axis of the flap.
By adopting the design, the device is balanced in arrangement and reasonable in design.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of the utility model at A in FIG. 1;
FIG. 3 is an enlarged view of a portion of the opening process of the present utility model;
wherein, 1, valve clack; 2. a valve body; 3. a valve cover; 4. a valve seat; 5. a valve stem; 6. a guide sleeve; 61. an orifice; 62. an energy storage cavity; 11. flushing the channel; 111. an inlet aperture; 112. an outlet aperture.
Description of the embodiments
The throttle stop emptying valve as shown in figures 1-3 comprises a valve clack 1, a valve body 2, a valve cover 3, a valve seat 4 and a valve rod 5, wherein a guide sleeve 6 is arranged between the valve cover 3 and the valve seat 4, the guide sleeve 6 is fixed in the valve body 2, one side of the guide sleeve 6 is axially provided with a multi-channel throttle hole 61, an energy storage cavity 62 capable of flowing in a medium is further arranged in the guide sleeve 6, the energy storage cavity 62 is positioned in a region between the valve clack 1 and the valve cover 3, a flushing channel 11 is arranged in the valve clack 1, the flushing channel 11 penetrates through the self-balancing cavity to the peripheral wall of the valve clack 1, and when the valve clack 1 is opened, the medium in the energy storage cavity 62 impacts the inner wall of the guide sleeve 6 through the flushing channel 11. During the closing process of the valve, some medium flows into the energy storage cavity 62 to form certain pressure of the energy storage cavity 62 until the valve is closed; when the valve needs to be opened, the valve clack 1 gradually rises, and meanwhile, the medium in the energy storage cavity 62 is pressurized, most of the medium in the medium is flushed out through the flushing channel 11, impacts the inner wall of the guide sleeve 6, flushes and falls off the attachments on the inner wall of the guide sleeve 6 and the blocking objects in the throttle hole 61, and flows out of the valve along with the medium.
The flushing channel 11 is at least provided with two groups, and is uniformly distributed around the central axis of the valve clack 1 in a column manner.
The flushing passage 11 includes an inlet port 111 and an outlet port 112 communicating with each other, the inlet port 111 communicating with the accumulator chamber 62. During valve opening, medium from the energy storage chamber 62 enters the inlet opening 111 and flushes out the flushing guide sleeve 6 from the outlet opening 112. The opening of the outlet opening 112 is arranged between the orifices 61 in the closed state of the flap 1 and is closed by the inner wall of the guide sleeve 6, avoiding the release of the medium pressure in the energy storage chamber 62 when the valve is closed.
The outlet hole 112 is required to be arranged at the bottom end position of the valve clack 1 close to the valve seat 4, and the outlet hole 112 gradually flushes the position of the throttle hole 61 area of the guide sleeve 6 from bottom to top along with the upward movement of the valve clack 1.
The plurality of outlet holes 112 are uniformly arranged at intervals around the inlet hole 111, and can also be arranged along the axial direction of the inlet hole 111, so that different flushing positions of the outlet holes 112 are ensured, the positions of the outlet holes 112 which can be flushed are more, and the flushing range is more comprehensive. The aperture of the outlet hole 112 needs to be smaller than that of the inlet hole 111, so that the flushing medium of the outlet hole 112 has more impact force, and the flushing is more thorough and efficient.
Claims (5)
1. The utility model provides a throttle is cut off and is emptied valve, including valve clack, valve body, valve gap, disk seat and valve rod, be provided with the uide bushing between valve gap and the disk seat, one side of uide bushing is provided with multichannel orifice along its axial, its characterized in that: the guide sleeve is internally provided with an energy storage cavity capable of flowing in a medium, the energy storage cavity is positioned in an area between the valve clack and the valve cover, a flushing channel is arranged in the valve clack, the flushing channel penetrates through the peripheral wall of the valve clack from the balance cavity, and the medium in the energy storage cavity impacts the inner wall of the guide sleeve through the flushing channel when the valve clack is opened.
2. The throttling cut-off vent valve of claim 1, wherein: the flushing channel comprises an inlet hole and an outlet hole which are communicated with each other, the inlet hole is communicated with the energy storage cavity, and the orifice of the outlet hole is covered and sealed by the inner wall of the guide sleeve when the valve clack is in a closed state.
3. The throttling cut-off vent valve of claim 2, wherein: the outlet hole is positioned at the bottom end of the valve clack close to the valve seat.
4. The throttling cut-off vent valve of claim 2, wherein: the outlet holes have a plurality of diameters smaller than the diameters of the inlet holes.
5. The throttling cut-off vent valve according to claim 1 or 2, wherein: the flushing channels are at least two groups and are distributed and uniformly distributed around the central axis of the valve clack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321823999.0U CN220551583U (en) | 2023-07-11 | 2023-07-11 | Throttle cut-off emptying valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321823999.0U CN220551583U (en) | 2023-07-11 | 2023-07-11 | Throttle cut-off emptying valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220551583U true CN220551583U (en) | 2024-03-01 |
Family
ID=90009017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321823999.0U Active CN220551583U (en) | 2023-07-11 | 2023-07-11 | Throttle cut-off emptying valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220551583U (en) |
-
2023
- 2023-07-11 CN CN202321823999.0U patent/CN220551583U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |