CN110118264A - A method of the high-performance expansion sluice valve with back seal function and replacement filler - Google Patents
A method of the high-performance expansion sluice valve with back seal function and replacement filler Download PDFInfo
- Publication number
- CN110118264A CN110118264A CN201910399953.2A CN201910399953A CN110118264A CN 110118264 A CN110118264 A CN 110118264A CN 201910399953 A CN201910399953 A CN 201910399953A CN 110118264 A CN110118264 A CN 110118264A
- Authority
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- China
- Prior art keywords
- valve
- valve rod
- deck
- flashboard
- greasing
- 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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- 239000000945 filler Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012856 packing Methods 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 150000001875 compounds Chemical class 0.000 claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims abstract description 14
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- 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
- F16K3/0227—Packings
-
- 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
-
- 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 kind of high-performance expansion sluice valve with back seal function and the methods for replacing filler, which includes valve body, valve rod, flashboard, valve deck and pressure cap；Valve deck is installed on valve body；Lock slot is provided in valve body；Flashboard is installed in lock slot；Driving handwheel is installed in valve stem tip；Valve rod is passed through from valve deck, is threadedly coupled with flashboard；Back draught shoulder is provided on valve rod；Pressure cap is installed at the top of valve deck；It is arranged on valve rod and bearing is installed；Gland is provided with below bearing；Packing cavity is provided between valve rod and valve deck；Stop-leak compound injection valve and greasing device are installed on valve deck, greasing device passes through the greasing hole tilted upward being arranged on valve deck and is connected to packing cavity.Sealing effect of the present invention is good, meets PR2 grade standard, and safety is good, can realize emergency sealing by greasing after leaking, and avoids that safety accident occurs, maintenance and replacement airtight and watertight padding are convenient, it can be achieved that replacement filler with pressure.
Description
Technical field
The present invention relates to valve field more particularly to a kind of high-performance expansion sluice valve with back seal function and replacement fillers
Method.
Background technique
Valve is the common part in Pipeline transport, defeated commonly used to opening and closing pipeline, control flow direction, regulation and control medium
It send, is the control unit in fluid delivery system, generally there is cut-off, adjusting, water conservancy diversion, prevent adverse current, pressure stabilizing, shunting or overflow
The functions such as pressure release can be used for controlling empty gas and water, steam, various corrosive medias, mud, oil product, liquid metal and radioactivity and be situated between
The flowing of the various types fluid such as matter.Gate valve is one of most common valve.Gate valve is using flashboard as opening and closing element, the movement of flashboard
Direction is perpendicular with flow direction, and gate valve can only make standard-sized sheet and Quan Guan, cannot make adjustments and throttle.Gate valve passes through valve seat and flashboard
Contact is sealed.
By airtight and watertight padding between the valve rod and valve deck of existing expansion sluice valve, sealing is realized.Airtight and watertight padding generallys use
Packing and/or stop-leak compound.Airtight and watertight padding belongs to rapid wear product, it is often necessary to be replaced.Existing expansion sluice valve structure replacement is close
Packing material is very inconvenient, and maintenance and upkeep operation are cumbersome, damages simultaneously for airtight and watertight padding, causes gate valve to be revealed, it is difficult to carry out
Effective quickly processing, poor safety performance.
Summary of the invention
In order to solve the above technical problems, the present invention provides the high-performance expansion sluice valve with back seal function and replacement fillers
Method using back draught shoulder, can be realized back seal function aiming at the shortcomings in the prior art, solve existing swollen
The replacement airtight and watertight padding of expanding brake valve arrangement is very inconvenient, and maintenance and upkeep operation are cumbersome, damages simultaneously for airtight and watertight padding, leads to lock
Valve leakage, it is difficult to effective quickly processing is carried out, the problem of poor safety performance.
In order to achieve the above objectives, technical scheme is as follows: a kind of high-performance expansion sluice valve with back seal function,
Including valve body, valve rod, flashboard, valve deck and pressure cap；The valve deck is installed on the valve body；Lock is provided in the valve body
Slot；The flashboard is installed in the lock slot, is moved along the lock slot；The valve through the valve deck is provided on the valve deck
Rod aperture；The driving handwheel for driving the valve rod rotation is installed in the valve stem tip；The valve rod is from the valve deck
Valve rod hole passes through, and is threadedly coupled with the flashboard；The valve rod rotation, drives the flashboard to move along the lock slot；Described
Back draught shoulder is provided on valve rod, the lower end of the tapered structure of back draught shoulder, the valve rod hole is in and the back taper
Spend the flared structure of shoulder cooperation；Pressure cap is installed at the top of the valve deck；It is arranged on the valve rod and bearing is installed；?
Gland is provided with below the bearing；Packing cavity is provided between the valve rod and valve deck；Filling in the packing cavity
There is airtight and watertight padding；The gland lower end is protruded into the packing cavity；Stop-leak compound injection valve, institute are installed on the valve deck
Stop-leak compound injection valve is stated to be connected to the packing cavity；Greasing device is installed on the valve deck, the greasing device is existed by setting
The greasing hole tilted upward on the valve deck is connected to the packing cavity.
As a preferred solution of the present invention, the pressure to extend radially outwardly along the valve rod is provided on the valve rod
Ring；The bearing is two, positioned at the upper and lower two sides of the pressure ring.
As a preferred solution of the present invention, circular lock hole is provided on the flashboard.
As a preferred solution of the present invention, the airtight and watertight padding includes chevron, filler spacer ring and packing_seal
Circle；The packing_seal circle, filler spacer ring and chevron are sequentially stacked from bottom to top；The V-shaped coil structures of chevron；Institute
Stating packing_seal circle is the cirque structure that lower end offers annular lip；It is installed in the annular lip of the packing_seal circle
There are metallic supports.
As a preferred solution of the present invention, the chevron is multiple, stacked on top of each other；The gland covers
On the chevron.
A method of the high-performance expansion sluice valve with back seal function replaces filler, using any institute of claim 1-5
The expansion sluice valve stated, comprising the following steps:
Step 1, the driving handwheel is rotated, the valve rod is rotated, the flashboard is driven to move downwardly to the lock slot
Bottom simultaneously fastens；
Step 2, the pressure cap is unclamped, separates the pressure cap with the valve deck, rotates the valve rod, the flashboard again
It moves downward again, the upward pushing tow of back draught shoulder makes to realize sealing between the back draught shoulder and the valve deck；
Step 3, it opens the greasing device and is connected to external greasing pump, pumped by external greasing into the packing cavity
Stop-leak compound is injected, the airtight and watertight padding in the packing cavity is extruded, and replaces qualified airtight and watertight padding；
Step 4, the pressure cap is installed again, and rotation valve rod is detached from the back draught shoulder and the valve deck and seals
And clearance fit, the pressure cap is fastened, the gland is made to pressurize to the packing cavity downwards, described close
It seals rouge injection valve and injects stop-leak compound, complete replacement filler process.
The preferred embodiment of method as above-mentioned replacement filler will be in the packing cavity by the greasing device in step 3
Airtight and watertight padding extrude after, the back seal ball in the stop-leak compound injection valve is first opened using professional tooling, then carry out replacement conjunction
The airtight and watertight padding of lattice simultaneously removes professional tooling.
The preferred embodiment of method as above-mentioned replacement filler first passes through the greasing when airtight and watertight padding, which damages, to be revealed
Device is to carrying out urgent greasing sealing in the packing cavity, then carries out replacement filler step.
Through the above technical solutions, the beneficial effect of technical solution of the present invention is: the configuration of the present invention is simple is reasonable, sealing effect
Fruit is good, can reach the requirement at least carrying out 500 high/low temperatures circulation No leakage with pressure, meets PR2 grade standard, and safety is good, when
Emergency sealing can be realized by greasing after there is leakage, avoid that safety accident occurs, maintenance and replacement airtight and watertight padding are convenient, can be real
Existing replacement filler with pressure, without dismantling to valve body, using effect is good.The present invention carries out the method and step letter of replacement filler
Single, replacement speed is fast, and safety is good.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1, Fig. 2 are the structural schematic diagram of different cross section of the invention.
Number and corresponding component title represented by letter in figure:
1. 2. valve rod of valve body, 3. flashboard
4. back draught shoulder 5. drives 6. pressure cap of handwheel
7. 9. packing_seal circle of bearing 8.V shape packing
10. 11. valve deck of filler spacer ring, 12. stop-leak compound injection valve
13. greasing device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In conjunction with Fig. 1, Fig. 2, the present invention provides a kind of high-performance expansion sluice valves with back seal function, in existing gate valve
It is improved in structure, adds back seal structure, it can be achieved that quick-replaceable airtight and watertight padding, safety are good.The present invention includes valve body
1, valve rod 2, flashboard 3, valve deck 11 and pressure cap 6.Valve deck 11 is installed on valve body 1.Lock slot is provided in valve body 1；Flashboard 3 is installed
In in lock slot, moved along lock slot.Circular lock hole is provided on flashboard 3.The valve through valve deck 11 is provided on valve deck 11
Rod aperture.The driving handwheel 5 rotated for driving stem 2 is installed on 2 top of valve rod.Valve rod 2 is passed through from the valve rod hole of valve deck 11,
It is threadedly coupled with flashboard 3.Valve rod 2 rotates, and driving flashboard 3 is moved along lock slot.Back draught shoulder 4, back taper are provided on valve rod 2
The tapered structure of shoulder 4 is spent, the lower end of valve rod hole is in the flared structure cooperated with back draught shoulder 4.When normal use, back taper
Shape shoulder and 11 clearance fit of valve deck；When carrying out replacement filler or emergency sealing, pass through back taper shoulder and valve deck 11
Form sealing surface (specifically, referring to method of replacement filler).
Pressure cap 6 is installed at the top of valve deck 11.It is arranged on valve rod 2 and bearing 7 is installed.Specifically, being arranged on valve rod 2
There is the pressure ring to extend radially outwardly along valve rod 2；Bearing 7 is two, positioned at the upper and lower two sides of pressure ring.It is provided with below bearing 7
Gland；Packing cavity is provided between valve rod 2 and valve deck 11.Airtight and watertight padding is filled in packing cavity.Gland lower end
It protrudes into packing cavity.By fastening pressure cap 6, push gland, the airtight and watertight padding Operating Pressure in seal chamber guarantees sealing
Performance.Stop-leak compound injection valve 12 is installed on valve deck 11, stop-leak compound injection valve 12 is connected to packing cavity.It is installed on valve deck 11
There is greasing device 13, greasing device 13 passes through the greasing hole tilted upward being arranged on valve deck 11 and is connected to packing cavity.Note can be passed through
Rouge device 13 carries out greasing into packing cavity.
In order to guarantee sealing performance of the invention, airtight and watertight padding includes chevron 8, filler spacer ring 10 and packing_seal circle
9.Packing_seal circle 9, filler spacer ring 10 and chevron 8 are sequentially stacked from bottom to top.The V-shaped coil structures of chevron 8.Packing is close
Seal 9 is the cirque structure that lower end offers annular lip.Metal support is installed in the annular lip of packing_seal circle 9
Part.When pressure cap 6 fastens, after gland pushes, chevron 8 is strutted, and realizes edge seal, and packing_seal circle 9 is in metal branch
Under the action of support member, annular lip is strutted, and guarantees sealing effect.Preferably, chevron 8 is multiple, stacked on top of each other；Filler pressure
Lid covers on chevron 8.
The present invention specifically uses following methods to realize replacement filler:
Step 1, rotate driving handwheel 5 rotates valve rod 2, and flashboard 3 is driven to move downwardly to lock trench bottom and fasten；
Step 2, pressure cap 6 is unclamped, separates pressure cap 6 with valve deck 11, again rotation valve rod 2, flashboard 3 moves downward again,
By the upward pushing tow of back draught shoulder 4, make to realize sealing between back draught shoulder 4 and valve deck 11；
Step 3, open greasing device 13 and be connected to external greasing pump, pumped by external greasing injected into packing cavity it is close
Rouge is sealed, the airtight and watertight padding in packing cavity is extruded, and replaces qualified airtight and watertight padding；Specifically, will here by greasing device 13
After airtight and watertight padding in packing cavity extrudes, the back seal ball in stop-leak compound injection valve 12 is first opened using professional tooling, then carry out
It replaces qualified airtight and watertight padding and removes professional tooling.
Step 4, upper pressing cap 6 is installed again, rotation valve rod 2 makes back draught shoulder 4 with the disengaging of valve deck 11 sealing and gap is matched
It closes, pressure cap 6 is fastened, gland is made to pressurize to packing cavity downwards, inject stop-leak compound in stop-leak compound injection valve 12,
Complete replacement filler process.
Quick emergency sealing may be implemented when airtight and watertight padding is damaged and revealed in the present invention, specifically, right by greasing device 13
Urgent greasing sealing is carried out in packing cavity.After emergency sealing, then carry out replacement filler step.
By above-mentioned specific embodiment, the beneficial effects of the present invention are: the configuration of the present invention is simple is reasonable, sealing effect is good,
It can reach the requirement at least carrying out 500 high/low temperatures circulation No leakage with pressure, meet PR2 grade standard, safety is good, when letting out
Emergency sealing can be realized by greasing after leakage, avoid that safety accident occurs, maintenance and replacement airtight and watertight padding are convenient, it can be achieved that with pressure
Filler is replaced, without dismantling to valve body 1, using effect is good.The method and step that the present invention carries out replacement filler is simple, replacement
Speed is fast, and safety is good.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of high-performance expansion sluice valve with back seal function, which is characterized in that including valve body, valve rod, flashboard, valve deck and pressure
Cap；The valve deck is installed on the valve body；Lock slot is provided in the valve body；The flashboard is installed in the lock slot,
It is moved along the lock slot；The valve rod hole through the valve deck is provided on the valve deck；It is installed in the valve stem tip useful
In the driving handwheel for driving the valve rod rotation；The valve rod is passed through from the valve rod hole of the valve deck, is connected with the flashboard screw thread
It connects；The valve rod rotation, drives the flashboard to move along the lock slot；Back draught shoulder is provided on the valve rod, it is described
The tapered structure of back draught shoulder, the lower end of the valve rod hole are in the flared structure cooperated with the back draught shoulder；Institute
It states and pressure cap is installed at the top of valve deck；It is arranged on the valve rod and bearing is installed；Gland is provided with below the bearing；
Packing cavity is provided between the valve rod and valve deck；Airtight and watertight padding is filled in the packing cavity；The gland lower end
It protrudes into the packing cavity；Stop-leak compound injection valve, the stop-leak compound injection valve and the packing cavity are installed on the valve deck
Connection；Greasing device is installed on the valve deck, the greasing device passes through the greasing tilted upward being arranged on the valve deck
Hole is connected to the packing cavity.
2. the high-performance expansion sluice valve according to claim 1 with back seal function, which is characterized in that on the valve rod
It is provided with the pressure ring to extend radially outwardly along the valve rod；The bearing is two, positioned at the upper and lower two sides of the pressure ring.
3. the high-performance expansion sluice valve according to claim 1 with back seal function, which is characterized in that on the flashboard
It is provided with circular lock hole.
4. the high-performance expansion sluice valve according to claim 3 with back seal function, which is characterized in that the airtight and watertight padding
Including chevron, filler spacer ring and packing_seal circle；The packing_seal circle, filler spacer ring and chevron are from bottom to top successively
It is stacked；The V-shaped coil structures of chevron；The packing_seal circle is the cirque structure that lower end offers annular lip；?
Metallic supports are installed in the annular lip of the packing_seal circle.
5. the high-performance expansion sluice valve according to claim 4 with back seal function, which is characterized in that the chevron
It is stacked on top of each other to be multiple；The gland covers on the chevron.
6. a kind of method of the high-performance expansion sluice valve replacement filler with back seal function, which is characterized in that use claim
Any expansion sluice valve of 1-5, comprising the following steps:
Step 1, the driving handwheel is rotated, the valve rod is rotated, the flashboard is driven to move downwardly to the lock trench bottom
And it fastens；
Step 2, the pressure cap is unclamped, separates the pressure cap with the valve deck, rotates the valve rod again, the flashboard is again
It moves downward, the upward pushing tow of back draught shoulder makes to realize sealing between the back draught shoulder and the valve deck；
Step 3, it opens the greasing device and is connected to external greasing pump, pumped by external greasing and injected into the packing cavity
Stop-leak compound extrudes the airtight and watertight padding in the packing cavity, and replaces qualified airtight and watertight padding；
Step 4, the pressure cap is installed again, and rotation valve rod is detached from the back draught shoulder and the valve deck between sealing simultaneously
Gap cooperation, fastens the pressure cap, the gland is made to pressurize to the packing cavity downwards, in the stop-leak compound
Injection valve injects stop-leak compound, completes replacement filler process.
7. the method for the high-performance expansion sluice valve replacement filler according to claim 6 with back seal function, feature exist
In in step 3, after being extruded the airtight and watertight padding in the packing cavity by the greasing device, first using professional tooling opening institute
The back seal ball in stop-leak compound injection valve is stated, then carries out the qualified airtight and watertight padding of replacement and removes professional tooling.
8. the method for the high-performance expansion sluice valve replacement filler according to claim 7 with back seal function, feature exist
In first passing through the greasing device to carrying out urgent greasing sealing in the packing cavity, then carry out when airtight and watertight padding, which damages, to be revealed
Replace filler step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399953.2A CN110118264A (en) | 2019-05-14 | 2019-05-14 | A method of the high-performance expansion sluice valve with back seal function and replacement filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399953.2A CN110118264A (en) | 2019-05-14 | 2019-05-14 | A method of the high-performance expansion sluice valve with back seal function and replacement filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110118264A true CN110118264A (en) | 2019-08-13 |
Family
ID=67522431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910399953.2A Pending CN110118264A (en) | 2019-05-14 | 2019-05-14 | A method of the high-performance expansion sluice valve with back seal function and replacement filler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110118264A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283441A (en) * | 2020-10-20 | 2021-01-29 | 吴忠仪表有限责任公司 | Use method of multistage expansion curing device for inner cavity of control valve stem packing box |
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| CN202165038U (en) * | 2011-07-08 | 2012-03-14 | 湖南唯科拓石油科技服务有限公司 | Tool for fault treatment of underground safety valve |
| CN203499625U (en) * | 2013-09-27 | 2014-03-26 | 李小军 | Sealing inserting pipe for separated layer water injection to oil-water well |
| CN203940023U (en) * | 2014-05-08 | 2014-11-12 | 成都航利阀门成套设备有限公司 | A kind of New forced seal ball-valve |
| CN204004491U (en) * | 2014-08-21 | 2014-12-10 | 金湖恒力机械有限公司 | A kind of back seal dark rod flat plate gate valve of online replacing filler |
| CN108457601A (en) * | 2018-04-10 | 2018-08-28 | 山东普瑞思德石油技术有限公司 | Gas-lift production one plows completion tubular column and technique |
| CN208268455U (en) * | 2018-05-29 | 2018-12-21 | 凯斯特阀门集团有限公司 | A kind of greasing gate valve |
| CN210661437U (en) * | 2019-05-14 | 2020-06-02 | 苏州博雷特流体控制有限公司 | High-performance expansion gate valve with inverted sealing function |
-
2019
- 2019-05-14 CN CN201910399953.2A patent/CN110118264A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201334890Y (en) * | 2009-01-06 | 2009-10-28 | 四机赛瓦石油钻采设备有限公司 | Blanking plug |
| CN202039815U (en) * | 2011-05-11 | 2011-11-16 | 江苏金石富源机械有限公司 | High-temperature expansion sluice valve |
| CN202165038U (en) * | 2011-07-08 | 2012-03-14 | 湖南唯科拓石油科技服务有限公司 | Tool for fault treatment of underground safety valve |
| CN203499625U (en) * | 2013-09-27 | 2014-03-26 | 李小军 | Sealing inserting pipe for separated layer water injection to oil-water well |
| CN203940023U (en) * | 2014-05-08 | 2014-11-12 | 成都航利阀门成套设备有限公司 | A kind of New forced seal ball-valve |
| CN204004491U (en) * | 2014-08-21 | 2014-12-10 | 金湖恒力机械有限公司 | A kind of back seal dark rod flat plate gate valve of online replacing filler |
| CN108457601A (en) * | 2018-04-10 | 2018-08-28 | 山东普瑞思德石油技术有限公司 | Gas-lift production one plows completion tubular column and technique |
| CN208268455U (en) * | 2018-05-29 | 2018-12-21 | 凯斯特阀门集团有限公司 | A kind of greasing gate valve |
| CN210661437U (en) * | 2019-05-14 | 2020-06-02 | 苏州博雷特流体控制有限公司 | High-performance expansion gate valve with inverted sealing function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283441A (en) * | 2020-10-20 | 2021-01-29 | 吴忠仪表有限责任公司 | Use method of multistage expansion curing device for inner cavity of control valve stem packing box |
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