CN106678380A - Control valve with zero leakage in liquid chlorine charging system - Google Patents
Control valve with zero leakage in liquid chlorine charging system Download PDFInfo
- Publication number
- CN106678380A CN106678380A CN201610729391.XA CN201610729391A CN106678380A CN 106678380 A CN106678380 A CN 106678380A CN 201610729391 A CN201610729391 A CN 201610729391A CN 106678380 A CN106678380 A CN 106678380A
- Authority
- CN
- China
- Prior art keywords
- liquid chlorine
- valve
- valve rod
- rod
- cavity
- 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.)
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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
- 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
- F16K1/36—Valve members
-
- 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
- F16K1/44—Details of seats or valve members of double-seat valves
Abstract
The invention discloses a control valve with zero leakage in a liquid chlorine charging system. The control valve comprises a valve body and a valve core, the valve body is internally provided with a liquid chlorine channel, and the two sides of the valve body are provided with an inlet and an outlet communicating with the liquid chlorine channel; the valve core comprises a valve core body and a valve seat, and the horizontally-arranged U-shaped valve seat is installed in the middle of the liquid chlorine channel and separates the liquid chlorine channel into a first flow pass segment and a second flow pass segment; lower end faces of blocking blocks are provided with outer-diameter conical segments, two vertical segments of the valve seat are both provided with communication cavities, and a valve rod vertically penetrates through the two communication cavities; the outer walls of the conical segments are provided with a plurality of clamping blocks in the peripheral direction, the inner walls of the communication cavities are provided with a plurality of clamping grooves, and the lower end faces of the conical segments are provided with sealing rings. Through reciprocating movement of the valve rod in the vertical direction, communication and lockage between a liquid chlorine storage tank and a transport tank can be achieved, therefore precision control over liquid chlorine flow in the liquid chlorine filling process can be rapidly achieved, and leakage of liquid chlorine caused by untimely interception or poor interception precision of liquid chlorine is avoided.
Description
Technical field
The present invention relates to a kind of control valve of liquid chlorine filling system, specifically refers to one kind in liquid chlorine filling system zero leakage
Control valve.
Background technology
In chemical industry chlor-alkali production industry, product is related to the harmful influences such as liquid chlorine, and its sale is filled with very big difficulty, and
Fill the very various complexity of formality；Because liquid chlorine has toxicity, easily gasification, once revealing, process not in time or cannot locate
During reason, the person will be caused serious injury, so as to cause serious accident, therefore it fills requirement strictly, safety guarantee
Measure must be perfect.When liquefied chlorine cistern car is carried out, tank car pressure can rise with liquid chlorine temperature in tank car and increase, once hypertonia
Tank car tank body just has the danger that blast occurs.Any liquid chloro container, its volumetric efficiency must not exceed 80%, it is seen that liquid chlorine filling
During accurate metering just seem particularly significant, not only to consider safety factor, and as benefit unit, its measuring accuracy
Also it is directly connected to sales achievement.However, the metering that fills of liquid chlorine is a complex process affected by many factors, such as fill
Error in dipping that the type selecting and alignment error of device itself causes, fill pipeline gas-liquid two-phase and evacuate error in dipping, the ring for causing
Error that error in dipping that border temperature causes, extraneous vibration interference cause etc..Simultaneously to improve quantifying and loading metering benefit, reduce
The lost on sale that error in dipping brings, had not only been had higher measuring accuracy, stability but also had been compared proper measurement environment from a kind of
Mass flowmenter and open the quantitative controller for stopping and seem necessary to improve security, just.
The content of the invention
It is an object of the invention to provide a kind of control valve in liquid chlorine filling system zero leakage, it is ensured that liquid chlorine is when filling
Flexible modulation, improve liquid chlorine measuring accuracy.
The purpose of the present invention is achieved through the following technical solutions：
A kind of control valve in liquid chlorine filling system zero leakage, including valve body and valve element, are provided with liquid chlorine runner, valve body two in valve body
Side be provided with respectively with the inlet and outlet of liquid chlorine flow passage, the valve element includes insert body and matched U-shaped valve
Seat, the valve seat of horizontal positioned U-shaped is arranged on the middle part of liquid chlorine runner, valve seat by the liquid chlorine channel partition into first paragraph runner and
Second segment runner, the insert body includes valve rod and two sprues being disposed on valve rod, sets on sprue lower surface
There is the conical section that external diameter successively decreases downwards along valve rod axis direction, conical section is set on the outer circle wall of valve rod, the valve seat water
Placing flat, and the connection cavity being engaged with conical section is provided with two vertical sections of valve seat, valve rod vertically runs through two
The connection cavity, circumferentially multiple fixture blocks are being provided with its external wall along the conical section, are provided with connection cavity inner wall many
The individual draw-in groove being adapted with the fixture block, in the lower surface of the conical section sealing ring is fixed with, and the external diameter of the sealing ring is big
In the internal diameter of the connection cavity lower ending opening；Supporter is installed in valve body upper end, gripper shoe is fixed on supporter upper surface,
Cavity is provided with the middle part of supporter, drive rod is installed in valve rod upper end, the drive rod activity runs through the cavity, gripper shoe
After upwardly extend, be provided with filler in the cavity, be additionally provided with retreat stop block in valve inner, the upper surface of retreat stop block is provided with just
Retaining hole to valve rod bottom.
For in prior art, easily there is when in use the inaccurate and caused leakage problem that dams in control valve element, and sends out
It is bright that existing valve element is improved, on the premise of control valve element flexible modulation is ensured, improve damming precisely for control valve element
Degree, to ensure measuring accuracy of the liquid chlorine in filling process, what the loss for reducing liquid chlorine improved liquid chlorine simultaneously fills efficiency；Use
When, it is provided with liquid chlorine runner in valve body, and the valve seat horizontal positioned of U-shaped is arranged on the middle part of liquid chlorine runner so that valve body enters
Mouth connects cavitys and outlet by two be opened on valve seat, and before filling, conical section is contacted with connection cavity wall, while
Fixture block cooperates with draw-in groove so that two connection cavitys realize primary seal, and the sealing ring on conical section lower surface is then real
The secondary seal of cavity lower ending opening is now connected, by primary seal and secondary seal so that liquid chlorine runner is insulated completely
Into two parts, to maintain to control valve element to liquid chlorine storage tank and extraneous isolation effect；When filling, liquid chlorine is flowed into by import
Between U-shaped valve base inner wall and import constitute first paragraph runner in, now stir valve rod so that conical section with connect cavity wall it
Between be gradually disengaged, liquid chlorine then along connection cavity and conical section between gap enter into U-shaped valve seat outer wall and outlet between constitute
Second segment runner in, eventually pass outlet and be injected into transfer cask body.By the reciprocating motion of valve rod in the vertical direction, i.e.,
Connection between achievable liquid chlorine storage tank and transfer cask and opening and closing, and then quickly realize the essence of liquid chlorine flow during liquid chlorine filling
Really control, it is to avoid because liquid chlorine dam not in time or the low precision that dams cause the leakage of liquid chlorine, ensure that liquid chlorine exists to reach
Flexible modulation when filling, improves the purpose of the measuring accuracy of liquid chlorine.
Wherein, liquid chlorine cut-off sealing is realized by the cooperation between valve element and valve seat in valve body, and the drive division of valve rod
Divide same easily appearance leakage, therefore inventor, in the upper surface fixed support body of valve body, the upper end of supporter is fixed with support
Plate, the gripper shoe is used to install the driver parts such as cylinder, and the upper end of valve rod is provided with drive rod, and supporter middle part is provided with sky
Chamber, is filled with filler in cavity, and drive rod is upwardly extended after cavity and gripper shoe of the activity in supporter successively, until
It is connected with the output end of driver part, similarly, sealing gasket is installed in supporter lower end, the sealing gasket can be by drive rod
Isolation between lower end and cavity is opened, and by sealing gasket and dual-seal of the filler to drive rod, can avoid the liquid chlorine Jing in valve body
Leak at the driver part of valve element, also, axle sleeve is installed in the junction of gripper shoe and supporter, drive rod activity runs through institute
Axle sleeve is stated, to ensure that drive rod can be realized pumping after being connected with driver part output end under air-proof condition.
The width of the fixture block successively decreases downwards along the axis direction of the valve rod.Fixture block causes conical section with the cooperation of draw-in groove
Increase with the contact area between cavity wall is connected, that is, increase the sealing effectiveness of primary seal, while the width of fixture block is along valve rod
Axis direction successively decrease downwards, similarly connect cavity wall on draw-in groove groove width also successively decrease downwards along the axis direction of valve rod, i.e.,
The liquid chlorine residual quantity in draw-in groove can be reduced when blocking to liquid chlorine runner, and fixture block is in the contact process with draw-in groove,
The deformation quantity that fixture block is squeezed and occurs can be restricted in the part that draw-in groove groove width is gradually reduced, i.e., fixture block and draw-in groove it
Between interaction force along valve rod axially direction directed downwardly be incremented by, and then increase primary seal sealing effectiveness.
The longitudinal cross-section of the sealing ring is the U-shaped of horizontal positioned.Preferably, the longitudinal cross-section of sealing ring is U-shaped, i.e.,
In the folding process of valve rod, sealing ring is gradually contacted with the lower ending opening of connection cavity, until draw-in groove agrees with completely with fixture block,
Valve rod stops movement, and now sealing ring occurs certain deformation and secondary seal is realized in the lower end to connecting cavity, and longitudinal cross-section
For U-shaped sealing ring when with connecting cavity mutually extruding occurring, the deformation of sealing ring outer circumference is by its U-shaped portion point
Possess certain deformation space, that is, prevent the part that sealing function is played on sealing ring not result in internal action stress concentration
And be damaged, to guarantee the stability of secondary seal, while extending the service life of sealing ring.
The fixture block and sealing ring adopt polytetrafluoroethylene (PTFE) material.Preferably, liquid chlorine possess it is active chemically
Matter, is provided simultaneously with corrosivity, and the service life of the general elastomeric material as sealing medium under liquid chlorine environment is shorter, easily
There is the phenomenon of hardening cracking, and inventor selects polytetrafluoroethylene (PTFE) material as fixture block and the raw material of sealing ring, utilizes
Its good decay resistance, to ensure to ensure the stability of primary seal and secondary seal in control valve, while extending
The frequency that low control valve inner part is changed, drops in the service life of fixture block and sealing ring.
The present invention compared with prior art, has the following advantages and advantages：
1st, the reciprocating motion that the present invention passes through valve rod in the vertical direction, you can realize the connection between liquid chlorine storage tank and transfer cask
With opening and closing, and then quickly realize the precise control of liquid chlorine flow during liquid chlorine filling, it is to avoid because liquid chlorine dam not in time or
It is to dam low precision and cause the leakage of liquid chlorine, to reach the flexible modulation for ensureing liquid chlorine when filling, improves the metering of liquid chlorine
The purpose of precision；
2nd, the draw-in groove groove width on connection cavity wall of the invention is also successively decreased downwards along the axis direction of valve rod, i.e., to liquid chlorine runner
The liquid chlorine residual quantity in draw-in groove can be reduced when being blocked, and fixture block, in the contact process with draw-in groove, fixture block is squeezed
And the deformation quantity for occurring can be restricted in the part that draw-in groove groove width is gradually reduced, i.e. interaction between fixture block and draw-in groove
Power along valve rod axially direction directed downwardly be incremented by, and then increase primary seal sealing effectiveness；
3rd, the present invention selects polytetrafluoroethylene (PTFE) material as fixture block and the raw material of sealing ring, using its good corrosion resistance
Can, to ensure to ensure the stability of primary seal and secondary seal in control valve, while extending fixture block and sealing ring
The frequency that low control valve inner part is changed, drops in service life.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of insert body.
Mark and corresponding parts title in accompanying drawing：
1- valve bodies, 2- imports, 3- retainings hole, 4- valve seats, 5- connection cavitys, 51- draw-in grooves, 6- insert bodies, 61- valve rods, 62- are blocked up
Block, 63- conical sections, 64- fixture blocks, 65- sealing rings, 7- outlets, 8- sealing gaskets, 9- drive rods, 10- fillers, 11- supporters, 12-
Axle sleeve, 13- gripper shoes.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment includes being provided with liquid chlorine runner in valve body 1 and valve element, valve body 1, and the both sides of valve body 1 are provided with
Respectively with the import 2 and outlet 7 of liquid chlorine flow passage, the valve element includes insert body 6 and matched U-shaped valve seat 4,
The valve seat 4 of horizontal positioned U-shaped is arranged on the middle part of liquid chlorine runner, valve seat 4 by the liquid chlorine channel partition into first paragraph runner and
Second segment runner, the insert body 6 includes valve rod 61 and two sprues 62 being disposed on valve rod 61, under sprue 62
End face is provided with the conical section 63 that external diameter successively decreases downwards along the axis direction of valve rod 61, and conical section 63 is set in the excircle of valve rod 61
On wall, the horizontal positioned of the valve seat 4, and the connection chamber being engaged with conical section 63 is provided with two vertical sections of valve seat 4
Body 5, valve rod 61 vertically through two connection cavitys 5, circumferentially multiple cards is being provided with its external wall along the conical section 63
Block 64, is provided with multiple draw-in grooves 51 being adapted with the fixture block 64, in the lower end of the conical section 63 on the connection inwall of cavity 5
Face is fixed with sealing ring 65, and the external diameter of the sealing ring 65 is more than the internal diameter for connecting the lower ending opening of cavity 5；On valve body 1
End is provided with supporter 11, and gripper shoe 13 is fixed on the upper surface of supporter 11, is provided with the middle part of supporter 11, in the upper end of valve rod 61
Drive rod 9 is installed, the activity of the drive rod 9 is upwardly extended after the cavity, gripper shoe 13, arranged in the cavity
There is filler 10, retreat stop block is additionally provided with inside valve body 1, the upper surface of retreat stop block is provided with just to the retaining hole 3 of the bottom of valve rod 61.
For in prior art, easily there is when in use the inaccurate and caused leakage problem that dams in control valve element, and sends out
It is bright that existing valve element is improved, on the premise of control valve element flexible modulation is ensured, improve damming precisely for control valve element
Degree, to ensure measuring accuracy of the liquid chlorine in filling process, what the loss for reducing liquid chlorine improved liquid chlorine simultaneously fills efficiency；Use
When, liquid chlorine runner is provided with valve body 1, and the horizontal positioned of valve seat 4 of U-shaped is arranged on the middle part of liquid chlorine runner so that valve body 1
Import 2 is connected by be opened on valve seat 4 two connection cavitys 5 with exporting 7, before filling, conical section 63 with connect the wall of cavity 5
Contact, while fixture block 64 cooperates with draw-in groove 51 so that two connect cavitys 5 and realize primary seal, and the lower end of conical section 63
Sealing ring 65 on face is then realized connecting the secondary seal of the lower ending opening of cavity 5, by primary seal and secondary seal so that
Liquid chlorine runner is insulated into completely two parts, to maintain to control valve element to liquid chlorine storage tank and extraneous isolation effect；When filling,
Liquid chlorine is flowed into the first paragraph runner constituted between the inwall of U-shaped valve seat 4 and import 2 by import 2, now stirs valve rod 61,
So that conical section 63 is gradually disengaged with connecting between the wall of cavity 5, gap of the liquid chlorine then between connection cavity 5 and conical section 63 is entered
Enter in the second segment runner constituted between the outer wall of U-shaped valve seat 4 and outlet 7, eventually pass outlet 7 and be injected into transfer cask body.
By the reciprocating motion of the in the vertical direction of valve rod 61, you can realize the connection and opening and closing between liquid chlorine storage tank and transfer cask, enter
And quickly realize the precise control of liquid chlorine flow during liquid chlorine filling, it is to avoid damming not in time or dam precision because of liquid chlorine
Differ from and cause the leakage of liquid chlorine, to reach the flexible modulation for ensureing liquid chlorine when filling, improve the purpose of the measuring accuracy of liquid chlorine.
Further, retreat stop block is additionally provided with inside valve body 1, the upper surface of retreat stop block is provided with just to the retaining hole of valve rod 61
3, during valve rod 61 is moved down, the end of valve rod 61 can move along a straight line along retaining hole 3, it is to avoid liquid chlorine is when filling to valve
Bar 61 and conical section 63 are impacted and cause valve rod 61 that circular runout occurs, to improve the control accuracy of insert body 6.Its
In, liquid chlorine cut-off sealing is realized by the cooperation between valve element and valve seat 4 in valve body 1, and the drive part of valve rod 61 is same
Easily there is leakage, therefore inventor, in the upper surface fixed support body 11 of valve body 1, the upper end of supporter 11 is fixed with gripper shoe
13, the gripper shoe 13 is used to install the driver parts such as cylinder, and the upper end of valve rod 61 is provided with drive rod 9, and in supporter 11
Portion is provided with cavity, and cavity is interior to be filled with filler 10, the cavity that successively activity runs through in supporter 11 of drive rod 9 and gripper shoe 13
After upwardly extend, until be connected with the output end of driver part, similarly, sealing gasket 8 is installed in the lower end of supporter 11, this is close
Packing 8 can open isolation between the lower end of drive rod 9 and cavity, by sealing gasket 8 with filler 10 to the dual close of drive rod
Envelope, leaks at the driver part that can avoid the liquid chlorine Jing valve elements in valve body 1, also, in the connection of gripper shoe 13 and supporter 11
Place is provided with axle sleeve 12, and the activity of drive rod 9 runs through the axle sleeve 12, to ensure that drive rod 9 is being connected with driver part output end
After can realize pumping under air-proof condition.
The width of the fixture block 64 successively decreases downwards along the axis direction of the valve rod 61.Fixture block 64 makes with the cooperation of draw-in groove 51
Obtain conical section 63 and connect the contact area increase between the wall of cavity 5, that is, increase the sealing effectiveness of primary seal, while fixture block 64
Width successively decrease downwards along the axis direction of valve rod 61, similarly connect the wall of cavity 5 on the groove width of draw-in groove 51 also along valve rod 61
Axis direction successively decreases downwards, i.e., can reduce the liquid chlorine residual quantity in draw-in groove 51, and fixture block when blocking to liquid chlorine runner
64 in the contact process of draw-in groove 51, and the deformation quantity that fixture block 64 is squeezed and occurs can be gradually reduced in the groove width of draw-in groove 51
It is restricted in part, i.e., the interaction force between fixture block 64 and draw-in groove 51 is being passed along valve rod 61 axially direction directed downwardly
Increase, and then increase the sealing effectiveness of primary seal.
Preferably, the longitudinal cross-section of sealing ring 65 is U-shaped, i.e., in the folding process of valve rod 61, sealing ring 65 is gradually
Contact with the lower ending opening of connection cavity 5, until draw-in groove 51 agrees with completely with fixture block 64, valve rod 61 stops movement, now seals
Ring 65 there is certain deformation and the lower end to connecting cavity 5 realize secondary seal, and longitudinal cross-section for U-shaped sealing ring 65 with
When connection cavity 5 occurs mutually to extrude, the deformation of the outer circumference of sealing ring 65 possesses certain deformation by its U-shaped portion point
Space, that is, prevent the part that sealing function is played on sealing ring 65 not result in internal action stress concentration and be damaged, with true
The stability of secondary seal is protected, while extending the service life of sealing ring 65.
Preferably, liquid chlorine possesses active chemical property, corrosivity, the general rubber as sealing medium are provided simultaneously with
Service life of the glue material under liquid chlorine environment is shorter, the phenomenon for hardening cracking easily occur, and inventor selects polytetrafluoroethyl-ne
Alkene material as fixture block 64 and the raw material of sealing ring 65, using its good decay resistance, to ensure in control valve
Ensure the stability of primary seal and secondary seal, while extending the service life of fixture block 64 and sealing ring 65, reduce control
The frequency that valve inner part processed is changed.
Above-described specific embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the specific embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc. all should include
Within protection scope of the present invention.
Claims (4)
1. a kind of control valve in liquid chlorine filling system zero leakage, including valve body（1）And valve element, valve body（1）Inside it is provided with stream of liquid chlorine
Road, valve body（1）Both sides be provided with respectively with the import of liquid chlorine flow passage（2）And outlet（7）, it is characterised in that：The valve element bag
Include insert body（6）And matched U-shaped valve seat（4）, the valve seat of horizontal positioned U-shaped（4）In liquid chlorine runner
Portion, valve seat（4）By the liquid chlorine channel partition into first paragraph runner and second segment runner, the insert body（6）Including valve rod
（61）Be disposed on valve rod（61）On two sprues（62）, in sprue（62）Lower surface is provided with external diameter along valve rod（61）
The conical section that axis direction successively decreases downwards（63）, conical section（63）It is set in valve rod（61）Outer circle wall on, the valve seat（4）
Horizontal positioned, and in valve seat（4）Two vertical sections on be provided with and conical section（63）The connection cavity being engaged（5）, valve rod
（61）Vertically run through two connection cavitys（5）, along the conical section（63）It is circumferential to be provided with multiple fixture blocks on its external wall
（64）, in connection cavity（5）It is provided with inwall multiple with the fixture block（64）Adaptable draw-in groove（51）, in the conical section
（63）Lower surface be fixed with sealing ring（65）, the sealing ring（65）External diameter be more than the connection cavity（5）Lower ending opening
Internal diameter；In valve body（1）Upper end is provided with supporter（11）, gripper shoe（13）It is fixed on supporter（11）Upper surface, is supporting
Body（11）Middle part is provided with cavity, in valve rod（61）Upper end is provided with drive rod（9）, the drive rod（9）Activity runs through the sky
Chamber, gripper shoe（13）After upwardly extend, be provided with filler in the cavity（10）, in valve body（1）Inside is additionally provided with retreat stop block,
The upper surface of retreat stop block is provided with just to valve rod（61）The retaining hole of bottom（3）.
2. a kind of control valve in liquid chlorine filling system zero leakage according to claim 1, it is characterised in that：The fixture block
（64）Width along the valve rod（61）Axis direction successively decrease downwards.
3. a kind of control valve in liquid chlorine filling system zero leakage according to claim 1, it is characterised in that：The sealing
Ring（65）Longitudinal cross-section for horizontal positioned U-shaped.
4. a kind of control valve in liquid chlorine filling system zero leakage according to claim 1, it is characterised in that：The fixture block
（64）And sealing ring（65）Adopt polytetrafluoroethylene (PTFE) material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729391.XA CN106678380A (en) | 2016-08-26 | 2016-08-26 | Control valve with zero leakage in liquid chlorine charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729391.XA CN106678380A (en) | 2016-08-26 | 2016-08-26 | Control valve with zero leakage in liquid chlorine charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678380A true CN106678380A (en) | 2017-05-17 |
Family
ID=58839879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610729391.XA Withdrawn CN106678380A (en) | 2016-08-26 | 2016-08-26 | Control valve with zero leakage in liquid chlorine charging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678380A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19747919A1 (en) * | 1996-10-31 | 1998-05-07 | Yamatake Honeywell Co Ltd | Valve for fluid flow pipe |
| CN202152857U (en) * | 2011-05-19 | 2012-02-29 | 浙江科海仪表有限公司 | Double valve seat adjustable valve |
| CN202531869U (en) * | 2012-05-02 | 2012-11-14 | 郭海新 | Flexible-seal dual-valve-seat plunger adjusting valve |
| CN203214895U (en) * | 2013-03-20 | 2013-09-25 | 河北喜之郎食品有限公司 | Pneumatic angle seat valve |
| CN103671985A (en) * | 2013-12-10 | 2014-03-26 | 重庆巨康建材有限公司 | Rotary control type stop valve |
| CN204942555U (en) * | 2015-09-09 | 2016-01-06 | 浙江伟光泵阀制造有限公司 | A kind of liquid chlorine special valve |
| CN105333159A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Double-valve-element pneumatic control valve |
-
2016
- 2016-08-26 CN CN201610729391.XA patent/CN106678380A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19747919A1 (en) * | 1996-10-31 | 1998-05-07 | Yamatake Honeywell Co Ltd | Valve for fluid flow pipe |
| CN202152857U (en) * | 2011-05-19 | 2012-02-29 | 浙江科海仪表有限公司 | Double valve seat adjustable valve |
| CN202531869U (en) * | 2012-05-02 | 2012-11-14 | 郭海新 | Flexible-seal dual-valve-seat plunger adjusting valve |
| CN203214895U (en) * | 2013-03-20 | 2013-09-25 | 河北喜之郎食品有限公司 | Pneumatic angle seat valve |
| CN103671985A (en) * | 2013-12-10 | 2014-03-26 | 重庆巨康建材有限公司 | Rotary control type stop valve |
| CN204942555U (en) * | 2015-09-09 | 2016-01-06 | 浙江伟光泵阀制造有限公司 | A kind of liquid chlorine special valve |
| CN105333159A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Double-valve-element pneumatic control valve |
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Application publication date: 20170517 |