CN109185467B - Anti-scouring stop valve with replaceable valve seat - Google Patents
Anti-scouring stop valve with replaceable valve seat Download PDFInfo
- Publication number
- CN109185467B CN109185467B CN201811379833.8A CN201811379833A CN109185467B CN 109185467 B CN109185467 B CN 109185467B CN 201811379833 A CN201811379833 A CN 201811379833A CN 109185467 B CN109185467 B CN 109185467B
- Authority
- CN
- China
- Prior art keywords
- valve
- packing
- seat
- valve body
- cover
- 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.)
- Active
Links
- 238000009991 scouring Methods 0.000 title description 9
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 230000006837 decompression Effects 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 9
- 238000012856 packing Methods 0.000 claims description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 230000003628 erosive effect Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000283216 Phocidae Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
- F16K1/427—Attachment of the seat to the housing by one or more additional fixing elements
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a scour-resistant replaceable valve seat stop valve, which comprises a valve body and a valve seat, wherein the middle part of the valve body is provided with the valve seat, the upper end of the valve seat is connected with a decompression sleeve, the middle part of the decompression sleeve is sleeved with a valve handle, the upper end of the valve handle is provided with a valve handle cover, the upper end of the valve handle cover is provided with a valve rod, the upper end of the valve rod is provided with a four-open ring, the upper end of the four-open ring is provided with a valve cover, two sides of the lower end of the valve cover are provided with self-sealing rings, the upper end of the middle part of the valve cover is provided with a filler pad, the upper end of the filler pad is provided with filler, and the upper end of the filler is provided with a filler pressing sleeve. This stop valve is through taking out the ring channel on the valve body, beats symmetrical hole on the disk seat, forms the medium and dashes, and pressure is nearly zero after the dashing, can reduce the injury to sealed face, and the disk seat is withstood to the pressure of disk seat lower part medium, and stable in structure does not have leakage, and the disk seat is removable, and the maintenance of being convenient for still resists erosion, and sealed face just has the matter to mediate after the valve is opened a period, compresses tightly the disk seat, reduces not hard up risk.
Description
Technical Field
The invention relates to the technical field of stop valves, in particular to a scour-resistant stop valve with a replaceable valve seat.
Background
The valve is leaked in the easy valve that causes after the winding gasket is not hard up in the present stop valve to when opening repeatedly, the self sealss ring is not hard up easily causes the hourglass outward, can not play the effect of choking, and the disk seat of stop valve can not be compressed tightly in the use, exists not hard up risk, has increased the potential safety hazard, and can change the maintenance alone when the disk seat takes place to damage, if the disk seat damages then the stop valve damage, has increased cost of maintenance and maintenance degree of difficulty, uses sealing part in the stop valve many places to reach the purpose that zero was revealed, but when using in having corrosive gas or liquid, sealing part is easily corroded the damage.
Disclosure of Invention
The invention aims to provide an anti-scouring stop valve with a replaceable valve seat, which has the characteristics of no leakage and anti-scouring and solves the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an anti-scour removable disk seat stop valve, includes valve body and disk seat, the valve body middle part is equipped with the disk seat, the disk seat upper end is connected with the decompression cover, decompression cover lower extreme edge installs the sealing ring between disk seat upper end edge, decompression cover middle part has cup jointed the valve and has been handled, the valve is handled the upper end and is equipped with the valve and is handled the lid, the valve is handled the lid upper end and is equipped with the valve rod, the valve rod upper end is installed four open rings, four open rings inlay in the ring channel of valve body through hexagon socket screw fixation compaction, four open rings upper end is equipped with the valve gap, the valve gap is installed in valve body upper end middle part, the valve gap lower extreme outside is installed from the sealing ring, from the sealing ring upper end is connected with the backing ring, the backing ring upper end is equipped with pretension nut, pretension nut and backing ring all are located the valve gap outside, valve gap middle part upper end is equipped with the packing, the upper end of the packing pad is provided with packing, the upper end of the packing is provided with a packing pressing sleeve, the packing is positioned between the packing pad, the packing pressing sleeve and the valve cover, the upper end of the valve body is provided with a lower receiving disc, the upper end of the lower receiving disc is provided with a pre-tightening disc, the middle part of the pre-tightening disc is fixedly connected with the lower receiving disc through a square head screw, the lower receiving disc and the pre-tightening disc are both positioned outside the valve cover, the upper end of the packing pressing sleeve is provided with a packing pressing plate, one end of the packing pressing plate is fixedly connected with one end of the pre-tightening disc, the upper end of the packing pressing plate is provided with a guide plate, two ends of the guide plate are connected with four supporting rods, the lower ends of the supporting rods are connected with the upper receiving disc, the middle part of the upper receiving disc is provided with a valve rod nut, the lower end of the valve rod nut is sleeved with a valve rod nut sleeve, the upper end of the upper receiving disc is provided with two bearings, and a bearing gland is arranged at the upper end of the bearing.
Preferably, the material of the filler is high-temperature oxidation-resistant flexible graphite.
Preferably, the side wall of the valve seat is provided with a symmetrical hole.
Preferably, the lower end of the valve rod is positioned in the middle of the valve body, and the middle of the valve rod is connected with the valve cover in series.
Preferably, the self-sealing ring is T-shaped, and the self-sealing ring and the sealing ring are made of reinforced high-temperature oxidation-resistant flexible graphite metal.
Compared with the prior art, the invention has the following beneficial effects:
According to the anti-scouring replaceable valve seat stop valve, the annular groove is drawn out on the valve body, the inner hexagon screw on the four open rings is used for directly compacting, the symmetrical holes are punched on the valve seat, medium hedging is formed, the pressure after hedging is almost zero, damage to a sealing surface can be reduced, the pressure of medium at the lower part of the valve seat is propped against the valve seat, the sealing effect of the V-shaped self-sealing ring is better, the structure is stable and free from leakage, the shutoff effect is good, the valve seat of the stop valve is replaceable, the maintenance is convenient, the anti-scouring is realized, the sealing surface is medium after the valve is opened for a period of time, the service life of sealing parts is prolonged, the valve seat can be compacted, the loosening risk is reduced, and the potential safety hazard is reduced.
Drawings
FIG. 1 is an overall block diagram of the present invention;
fig. 2 is a valve seat structure diagram of the present invention.
In the figure: 1. a valve body; 2. a valve seat; 3. a seal ring; 4. a decompression sleeve; 5. valve handling; 6. a valve handling cover; 7. a valve stem; 8. a fourth ring opening; 9. an inner hexagon screw; 10. a valve cover; 11. self sealing ring; 12. a backing ring; 13. pre-tightening the nut; 14. a lower receiving tray; 15. a filler pad; 16. a filler; 17. a pre-tightening plate; 18. square head screw; 19. packing pressing sleeve; 20. a packing pressing plate; 21. a guide plate; 22. a support rod; 23. an upper tray; 24. a valve stem nut sleeve; 25. a valve stem nut; 26. a bearing; 27. and (5) a bearing gland.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, a shutoff valve with replaceable anti-scouring valve seat comprises a valve body 1 and a valve seat 2, wherein the middle part of the valve body 1 is provided with the valve seat 2, the side wall of the valve seat 2 is provided with symmetrical holes to form medium hedging, the pressure after hedging is almost zero, the damage to a sealing surface can be reduced, the upper end of the valve seat 2 is connected with a decompression sleeve 4, a sealing ring 3 is arranged between the lower end edge of the decompression sleeve 4 and the upper end edge of the valve seat 2, a valve handle 5 is sleeved in the middle part of the decompression sleeve 4, the upper end of the valve handle 5 is provided with a valve handle cover 6, the upper end of the valve handle 6 is provided with a valve rod 7, the lower end of the valve rod 7 is positioned in the middle part of the valve body 1, the middle part of the valve rod 7 is connected with a valve cover 10 in series, the upper end of the valve rod 7 is provided with a four open rings 8, the four open rings 8 are clamped and installed in the annular grooves of the valve body 1 through inner hexagon screws 9 to be fixedly compressed, the upper ends of the four open rings 8 are provided with a valve cover 10, the valve cover 10 is clamped and installed in the middle part of the upper end of the valve body 1, the two sides of the lower end of the valve cover 10 are provided with self-sealing rings 11, the self-sealing rings 11 are T-shaped, the self-sealing rings 11 and the sealing rings 3 are wrapped by reinforced high-temperature oxidation-resistant flexible graphite metal, the upper ends of the self-sealing rings 11 are connected with backing rings 12, the upper ends of the backing rings 12 are provided with pre-tightening nuts 13, the pre-tightening nuts 13 and the backing rings 12 are positioned outside the valve cover 10, the upper ends of the middle parts of the valve cover 10 are provided with packing gaskets 15, the upper ends of the packing gaskets 15 are provided with packing 16, the packing 16 is made of high-temperature oxidation-resistant flexible graphite, the upper ends of the packing 16 are provided with packing press sleeves 19, the packing 16 is positioned between the packing gaskets 15, the packing press sleeves 19 and the valve cover 10, the two sides of the upper end of the valve body 1 are provided with lower joint discs 14, the upper ends of the lower joint discs 17 are provided with pre-tightening discs 17, the middle parts of the pre-tightening discs 17 are fixedly connected with the lower joint discs 14 through square head screws 18, the lower joint discs 14 and the pre-tightening discs 17 are positioned outside the valve cover 10, the upper ends of the packing press sleeves 19 are provided with packing press plates 20, one end of a packing pressing plate 20 is fixedly connected with one end of a pre-tightening disc 17, a guide plate 21 is installed at the upper end of the packing pressing plate 20, four supporting rods 22 are connected to two ends of the guide plate 21, the lower ends of the four supporting rods 22 are connected with the upper end of a lower connecting disc 14, the upper ends of the four supporting rods 22 are connected with an upper connecting disc 23, a valve rod nut 25 is arranged in the middle of the upper connecting disc 23, a valve rod nut sleeve 24 is sleeved at the lower end of the valve rod nut 25, two bearings 26 are installed at the upper end of the upper connecting disc 23, and a bearing gland 27 is installed at the upper end of the bearings 26.
To sum up: according to the anti-scouring replaceable valve seat stop valve, the groove is drawn on the valve body 1, the four-way ring 8 is directly compressed, and the symmetrical holes are punched on the valve seat 2, so that medium hedging is formed, the hedging pressure is almost zero, the damage to a sealing surface can be reduced, the pressure of the medium at the lower part of the valve seat 2 props against the valve seat 2, the sealing effect of the T-shaped self-sealing ring 11 is better, the valve seat 2 of the stop valve is replaceable, the maintenance is convenient, the anti-scouring is realized, the sealing surface is medium after the valve is opened for a period of time, the service life of sealing parts is prolonged, the valve seat 2 can be pressed, the loose risk is reduced, and the potential safety hazard is reduced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an anti-scour removable disk seat stop valve, includes valve body (1) and disk seat (2), its characterized in that: valve disk seat (2) are arranged in the middle of valve body (1), disk seat (2) upper end is connected with decompression cover (4), install sealing ring (3) between disk seat (2) upper end edge in decompression cover (4) lower extreme edge, valve office (5) have been cup jointed in decompression cover (4) middle part, valve office (5) upper end is equipped with valve office lid (6), valve office lid (6) upper end is equipped with valve rod (7), four open loop (8) are installed to valve rod (7) upper end, four open loop (8) inlay card are installed in the ring channel of valve body (1) through hexagon socket head cap screw (9) fixed compaction, four open loop (8) upper end is equipped with valve gap (10), valve gap (10) are installed in valve body (1) upper end middle part, valve gap (10) lower extreme is installed from sealing ring (11), self-sealing ring (11) are connected with packing ring (12) in the upper end, packing ring (12) upper end is equipped with pretension nut (13), pretension nut (13) and packing ring (12) are installed in the ring channel of valve (7) upper end, are equipped with packing (16) and are equipped with packing (16) respectively, packing (16) are equipped with packing (15), the utility model provides a valve body, valve body (1) upper end, valve cover (10) and valve rod, packing (16) are located packing pad (15), packing press sleeve (19) and valve gap (10), lower flange (14) are installed to valve body (1) upper end both sides, lower flange (14) upper end is equipped with pretension dish (17), pretension dish (17) middle part is through square head screw (18) fixed connection lower flange (14), lower flange (14) and pretension dish (17) all are located valve gap (10) outside, packing press sleeve (19) upper end is equipped with packing clamp plate (20), packing clamp plate (20) one end fixed connection pretension dish (17) one end, deflector (21) are installed to packing clamp plate (20) upper end, deflector (21) both ends are connected with four supporting rods (22), four supporting rod (22) lower extreme connection lower flange (14) upper end, four supporting rod (22) upper end are connected with upper flange (23), upper flange (23) middle part is equipped with valve rod nut (25), valve rod (25) one end fixedly connected with gland (26), valve rod (26) are installed to support sleeve (26) upper end nut (26).
2. A scour resistant replaceable seat shut-off valve according to claim 1, wherein: the material of the filler (16) is high-temperature oxidation-resistant flexible graphite.
3. A scour resistant replaceable seat shut-off valve according to claim 1, wherein: the side wall of the valve seat (2) is provided with symmetrical holes.
4. A scour resistant replaceable seat shut-off valve according to claim 1, wherein: the lower end of the valve rod (7) is positioned in the middle of the valve body (1), and the middle of the valve rod (7) is connected with the valve cover (10) in series.
5. A scour resistant replaceable seat shut-off valve according to claim 1, wherein: the self-sealing ring (11) is T-shaped, and the self-sealing ring (11) and the sealing ring (3) are made of reinforced high-temperature oxidation-resistant flexible graphite metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811379833.8A CN109185467B (en) | 2018-11-20 | 2018-11-20 | Anti-scouring stop valve with replaceable valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811379833.8A CN109185467B (en) | 2018-11-20 | 2018-11-20 | Anti-scouring stop valve with replaceable valve seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109185467A CN109185467A (en) | 2019-01-11 |
| CN109185467B true CN109185467B (en) | 2024-06-18 |
Family
ID=64940052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811379833.8A Active CN109185467B (en) | 2018-11-20 | 2018-11-20 | Anti-scouring stop valve with replaceable valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109185467B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635973B (en) * | 2022-03-18 | 2023-09-12 | 南方阀门科技有限公司 | Main steam high-temperature high-pressure replaceable valve seat stop valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209294415U (en) * | 2018-11-20 | 2019-08-23 | 南通龙源电站阀门有限公司 | A kind of antiscour valve with changeable valve seat shut-off valve |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH307085A (en) * | 1952-12-11 | 1955-05-15 | Sulzer Ag | High pressure valve. |
| EP0134866A2 (en) * | 1983-07-18 | 1985-03-27 | Kerotest Manufacturing Corporation | On-off valve |
| CN201687971U (en) * | 2009-11-30 | 2010-12-29 | 南通龙源电站阀门有限公司 | Wedge-type gate valve |
| CN103742693B (en) * | 2014-01-23 | 2017-02-08 | 章华 | High-pressure-difference adjusting valve structure |
| CN105736722A (en) * | 2014-12-12 | 2016-07-06 | 陈松 | Y-shaped stop valve with replaceable valve seat |
| CN205560259U (en) * | 2016-04-15 | 2016-09-07 | 李建通 | Hide scour prevention trap of sealed face |
| CN207112078U (en) * | 2017-07-31 | 2018-03-16 | 南通红星高压阀门有限公司 | A kind of stop valve |
-
2018
- 2018-11-20 CN CN201811379833.8A patent/CN109185467B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209294415U (en) * | 2018-11-20 | 2019-08-23 | 南通龙源电站阀门有限公司 | A kind of antiscour valve with changeable valve seat shut-off valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109185467A (en) | 2019-01-11 |
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