CN105927761B - A kind of anti-rotten high-performance sealed reversal valve - Google Patents
A kind of anti-rotten high-performance sealed reversal valve Download PDFInfo
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- CN105927761B CN105927761B CN201610400163.8A CN201610400163A CN105927761B CN 105927761 B CN105927761 B CN 105927761B CN 201610400163 A CN201610400163 A CN 201610400163A CN 105927761 B CN105927761 B CN 105927761B
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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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
- F16K1/36—Valve members
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a kind of anti-rotten high-performance sealed reversal valve, change valve divides valve body to form by two band cavitys, and the structure for each dividing valve body is：The supporting plate that cavity is separated into epicoele and cavity of resorption is provided in the cavities, and the first connector being connected with epicoele and the second connector being connected with cavity of resorption are provided on valve body is divided；The first connecting hole of epicoele and cavity of resorption can be connected by being offered on supporting plate, valve body upper end divided to offer the second connecting hole, valve rod is connected after passing through the second connecting hole with bored plate, and valve rod is driven by driving device；It is provided with the first sealing structure on the supporting plate of the first connection hole, bored plate covers under the driving of driving device to be pressed on the first connecting hole and pass through the first sealing structure and seal off epicoele and cavity of resorption；Second seals structure is provided between the second connecting hole and valve rod.The reversal valve has good corrosion resistance and sealing performance, greatly reduces the failure rate of reversal valve and coal gas leaks probability.
Description
Technical field
The present invention relates to reversal valve more particularly to a kind of anti-rotten high-performance sealed commutations in gas-fired furnace
Valve.
Background technology
Reversal valve is the guarantee of one of capital equipment of gas-fired furnace and gas-fired furnace safe and reliable operation, because
And it must assure that the chronicity, security, reliability of its work.The primary combustion medium of gas-fired heater is blast furnace gas, high
Reversal valve internal component can be corroded containing a large amount of sour gas and acid impurities, sour gas and acid impurities in producer gas,
So as to influence the sealing performance of reversal valve or damage reversal valve internal component, reversal valve occur coal gas leak or failure it is general
Rate is very big.When reversal valve occur coal gas leak phenomenon when, if leaking to the gas concentration in gas-fired heater working environment
When exceeded, easily there is gas poisoning phenomenon in the operator to work in gas-fired heater working environment, and there are security risks.When
When reversal valve breaks down, then need blowing out then purged, coal gas detection etc. could be to failure reversal valve after safety measures
It is overhauled, this process at least needs eight hours, seriously affects production.In addition, gas-fired heater working environment is severe, work
Environment temperature is up to 45-50 DEG C, and the repair time of reversal valve is longer, easily causes maintenance personal's fatigue, heatstroke, exists serious
Security risk.
The content of the invention
It is the technical issues of solution needed for of the invention：A kind of good seal performance is provided and the anti-of failure rate can be substantially reduced
Rotten high-performance sealed reversal valve.
To solve the above problems, the technical solution adopted by the present invention is：The anti-rotten high-performance sealed reversal valve of described one kind,
Including：Change valve, change valve are made of two points of valve bodies, and the structure for each dividing valve body is：It is set in valve body is divided
Have the cavity of closing, be provided with the supporting plate made of 0Cr18Ni9Ti in the cavities, supporting plate by cavity be separated into epicoele and
Cavity of resorption is provided with the first connector on valve body is divided, and the first connector is connected with epicoele, and the second company is provided on valve body is divided
Interface, the second connector are connected with cavity of resorption；The first connecting hole of up/down perforation is offered on supporting plate, epicoele passes through first
Connecting hole is connected with cavity of resorption；Valve body upper end is being divided to offer the second connecting hole, valve rod lower end is worn made of 0Cr18Ni9Ti
Stretched into after crossing the second connecting hole in epicoele, valve rod can move up and down in the second connecting hole, be fixedly installed in valve rod lower end by
Bored plate made of 0Cr18Ni9Ti, bored plate can cover the first connecting hole, and valve rod upper end is connected with driving device, is driving
The driving lower valve rod of device can move up and down in the second connecting hole, and bored plate is driven to move up and down, and open the first connecting hole or pass
Close the first connecting hole；The first sealing structure is provided on the supporting plate of the first connection hole, bored plate can be in the drive of driving device
Dynamic lower covering is pressed on the first connecting hole and passing through the first sealing structure seals off epicoele and cavity of resorption；In the second connecting hole
Second seals structure is provided between valve rod, second seals structure makes to be tightly connected between the second connecting hole and valve rod.
0Cr18Ni9Ti contains the titanium for resisting intercrystalline corrosion, there is preferable anti intercrystalline corrosion performance and cold working stampability
Can, to oxidizing acid --- such as nitric acid has very strong corrosion resistance, also has to aqueous slkali and most of organic acid and inorganic acid
Certain corrosion resistance.
Further, the anti-rotten high-performance sealed reversal valve of foregoing one kind, wherein, first sealing structure is：
Corrosion resistant high temperature resistance fluorubber sealing strip is provided on the supporting plate of first connection hole.
Further, the anti-rotten high-performance sealed reversal valve of foregoing one kind, wherein, the driving device is cylinder, gas
The extension bar of cylinder is fixedly connected with connecting shaft upper end.
Further, the anti-rotten high-performance sealed reversal valve of foregoing one kind, wherein, it is provided in cylinder and dividing between valve body
3rd sealing structure, the 3rd sealing structure is to the extension bar junction of cylinder block and cylinder and valve rod with valve body is divided to be connected
Place carries out secondary seal.
Further, the anti-rotten high-performance sealed reversal valve of foregoing one kind, wherein, the 3rd sealing structure is：
Valve body upper end is divided to be provided with seal case, seal case is by the extension bar junction and valve rod of cylinder block and cylinder with dividing
Valve body junction closing cap is in seal case.
Further, the anti-rotten high-performance sealed reversal valve of foregoing one kind, wherein, the seal case is by sealing
Cabinet exterior sets silicone rubber seal backing plate to realize the sealing to seal case inner cavity.
Further, the anti-rotten high-performance sealed reversal valve of foregoing one kind, wherein, the second seals structure is：
Guide holder is fixedly installed in second connecting hole, packing cavity is provided in guide holder, valve rod passes through the through hole of packing cavity bottom
After stretch into epicoele, filler and pressing sleeve are provided in packing cavity, filler is pressed in packing cavity by pressing sleeve by hold-down mechanism.
Further, the anti-rotten high-performance sealed reversal valve of foregoing one kind, wherein, the structure of the hold-down mechanism is：
Guide holder upper end is provided with the first connecting plate, several 3rd connecting holes are arranged at intervals on the first connecting plate, on pressing sleeve
End is provided with the second connecting plate, and several 4th connecting holes, each 3rd connecting hole and Ge are arranged at intervals on the second connecting plate
Four connecting holes correspond, and each bolt connects the first connecting plate and second after passing through corresponding 3rd connecting hole and the 4th connecting hole
Plate connects, so that filler is pressed in packing cavity by pressing sleeve.
Further, the anti-rotten high-performance sealed reversal valve of foregoing one kind, wherein, between bored plate and valve rod and stent
Several stiffener plates made of 0Cr18Ni9Ti are respectively arranged between plate and cavity wall, bored plate thickness is 19-22mm.
The beneficial effects of the invention are as follows：The reversal valve has good corrosion resistance and sealing performance, greatly reduces
The failure rate and coal gas of reversal valve leak probability,, will not without blowing out with regard to that can complete the replacement of cylinder when cylinder breaks down
Normal production is influenced, and the cylinder replaced can be transported to safe working environment and be overhauled.
Description of the drawings
Fig. 1 is a kind of internal structure schematic diagram of anti-rotten high-performance sealed reversal valve of the present invention.
Fig. 2 is the internal structure schematic diagram in Fig. 1 left views direction.
Fig. 3 is the structure diagram of the anti-rotten high-performance sealed reversal valve of Fig. 1 overlook directions.
Fig. 4 is the partial enlargement structural representation of part A in Fig. 1.
Specific embodiment
Below in conjunction with the accompanying drawings and preferred embodiment is described in further detail technical solutions according to the invention.
As shown in Figure 1, Figure 2 and Figure 3, the anti-rotten high-performance sealed reversal valve of one kind described in the present embodiment, including：Reversal valve
Valve body, change valve by two structures it is identical valve body 1 is divided to form, the structure for each dividing valve body 1 is：It is set in valve body 1 is divided
The cavity of closing is equipped with, is provided with supporting plate 2 made of 0Cr18Ni9Ti in the cavities, cavity is separated by supporting plate 2
Chamber 11 and cavity of resorption 12 are provided with the first connector 13 on valve body 1 is divided, and the first connector 13 is connected with epicoele 11, is dividing valve
The second connector 14 is provided on body 1, the second connector 14 is connected with cavity of resorption 12；Up/down perforation is offered on supporting plate 1
The first connecting hole 21, epicoele 11 is connected by the first connecting hole 21 with cavity of resorption 12；Second is offered dividing the upper end of valve body 1
Connecting hole, through stretching into epicoele 11 after the second connecting hole, valve rod 3 can be for the lower end of valve rod 3 made of the 0Cr18Ni9Ti
It moves up and down in two connecting holes, the bored plate 4 made of 0Cr18Ni9Ti is fixedly installed in the lower end of valve rod 3, bored plate 4 can be by
One connecting hole 21 covers, and the upper end of valve rod 2 is connected with driving device, can be second in the driving lower valve rod 2 of driving device
It moves up and down in connecting hole, bored plate 4 is driven to move up and down, open the first connecting hole 21 or close the first connecting hole 21, first connects
When connecing the opening of hole 21, epicoele 11 is connected by the first connecting hole 21 with cavity of resorption 12, when the first connecting hole 21 is closed, 11 He of epicoele
Cavity of resorption 12 is separated into two mutually independent chambers by supporting plate 2 and bored plate 4；On the supporting plate 2 at the first connecting hole 21
The first sealing structure is provided with, bored plate 4 can cover under the driving of driving device is pressed on the first connecting hole 21 and passes through
One sealing structure seals off epicoele 11 and cavity of resorption 12.Driving device described in the present embodiment is cylinder 6, and cylinder 6 is stretched
Rod 61 is fixedly connected with the upper end of valve rod 3, and shaft coupling connection can be used in the mode of being fixedly connected.First described in the present embodiment
Sealing structure is：Corrosion resistant high temperature resistance fluorubber sealing strip 5 is provided on the supporting plate 2 at the first connecting hole 21.The present embodiment
In be respectively arranged between bored plate 4 and valve rod 3 and between supporting plate 2 and cavity wall it is several made of 0Cr18Ni9Ti plus
Strengthening tendons plate 7, bored 4 thickness of plate are 19-22mm.0Cr18Ni9Ti contains the titanium for resisting intercrystalline corrosion, there is preferable anti intercrystalline corrosion
Performance and cold working punching performance, have very strong corrosion resistance to oxidizing acid such as nitric acid etc., organic to aqueous slkali and major part
Acid and inorganic acid also have certain corrosion resistance.In actually using, one layer can be also set on the cavity wall for divide valve body
0Cr18Ni9Ti coatings, to enhance the corrosion resistance of point body cavity.
As shown in Figure 1 and Figure 4, second seals structure is provided in the present embodiment between the second connecting hole and valve rod 3, the
Two sealing structures make to be tightly connected between the second connecting hole and valve rod 3.The second seals structure is：In the second connecting hole
Guide holder 8 is fixedly installed, packing cavity is provided in guide holder 8, valve rod 3 stretches into epicoele after passing through the through hole of packing cavity bottom
In 11, filler 81 and pressing sleeve 82 are provided in packing cavity, filler 81 is pressed in packing cavity by pressing sleeve 82 by hold-down mechanism.
The structure of the hold-down mechanism is：8 upper end of guide holder is provided with the first connecting plate 83, is spaced and sets on the first connecting plate 83
Several 3rd connecting holes are equipped with, 82 upper end of pressing sleeve is provided with the second connecting plate 84, is arranged at intervals on the second connecting plate 84
Several 4th connecting holes, each 3rd connecting hole and tetra- connecting holes of Ge correspond, and each bolt 85 passes through corresponding 3rd connecting hole
The first connecting plate 83 and the second connecting plate 84 are connected with after the 4th connecting hole, so that filler 81 is pressed in filler by pressing sleeve 84
In chamber.The distance between first connecting plate 83 and the second connecting plate 84 are adjusted by each bolt 85 filler to be controlled to be pressed in filler
Compression degree in chamber.As shown in Figure 1, Figure 2 and Figure 3, in cylinder 6 and divide between valve body 1 that be provided with the 3rd close in the present embodiment
Seal structure, the 3rd sealing structure can be to 61 junctions of extension bar of cylinder block and cylinder and valve rod 3 with valve body 1 is divided to be connected
Place carries out secondary seal.3rd sealing structure is：1 upper end of valve body is being divided to be provided with seal case 9, seal case 9 will
Cylinder block is with 61 junction of cylinder extension bar and valve rod 3 with dividing 1 junction closing cap of valve body in seal case 9.Institute
The seal case 9 stated in 9 outer wall of seal case by setting silicone rubber seal backing plate 91 to realize to the close of 9 inner cavity of seal case
Envelope.
The reversal valve of said structure in use, when cylinder 6 breaks down, due to cylinder 6 extension bar 61 with
The junction of valve rod 3, which is located at, to be divided on the outside of valve body, valve rod 3 with valve body 1 is divided to be sealed by second seals structure, thus only need by
The extension bar 61 of cylinder 6 is separated with 3 upper end of valve rod can remove cylinder 6, just can complete the replacement of cylinder 6 without blowing out, replace
Malfunctioning cylinder afterwards can be transported in safe working environment and be overhauled, and such maintenance personal does not just have in gas-fired heater high temperature work
Make to be overhauled in environment.Second seals structure can ensure the sealing performance between valve rod and the second connecting hole well, and gas
With sealing structure, sealing structure is carried in second seals structure and cylinder in itself for 61 junction of extension bar of cylinder cylinder body and cylinder
On the basis of the 3rd sealing structure is set, to 61 junction of extension bar of cylinder block and cylinder and valve rod 3 and divide valve body 1
Junction carries out secondary seal, further improves the sealing performance of reversal valve, greatly reduces the failure rate and coal of reversal valve
Gas leaks probability, extends the service life of reversal valve, and reversal valve replacement frequency is effectively extenuated.
The above is only presently preferred embodiments of the present invention, is not the limitation for making any other form to the present invention, and
Any modification or equivalent variations that technical spirit according to the invention is made, still fall within the scope of protection of present invention.
The beneficial effects of the invention are as follows：The reversal valve has good corrosion resistance and sealing performance, greatly reduces
The failure rate and coal gas of reversal valve leak probability, when cylinder 6 breaks down, without blowing out with regard to that can complete the replacement of cylinder 6, no
It can influence normally to produce, and the cylinder 6 replaced can be transported to safe working environment and be overhauled.
Claims (6)
1. a kind of anti-rotten high-performance sealed reversal valve, including：Change valve, change valve are made of two points of valve bodies,
It is characterized in that：It is each divide valve body structure be：The cavity of closing is provided in valve body is divided, is set on the cavity wall for divide valve body
There are 0Cr18Ni9Ti coatings；The supporting plate made of 0Cr18Ni9Ti is provided in the cavities, and cavity is separated by supporting plate
Chamber and cavity of resorption are provided with the first connector on valve body is divided, and the first connector is connected with epicoele, and is provided on valve body is divided
Two connectors, the second connector are connected with cavity of resorption；The first connecting hole of up/down perforation is offered on supporting plate, epicoele passes through
First connecting hole is connected with cavity of resorption；Valve body upper end is being divided to offer the second connecting hole, made of the 0Cr18Ni9Ti under valve rod
It is stretched into after holding through the second connecting hole in epicoele, valve rod can move up and down in the second connecting hole, be fixedly installed in valve rod lower end
There is the bored plate made of 0Cr18Ni9Ti, bored plate can cover the first connecting hole, and valve rod upper end is connected with driving device,
The driving lower valve rod of driving device can move up and down in the second connecting hole, and bored plate is driven to move up and down, and open the first connecting hole
Or close the first connecting hole；The first sealing structure is provided on the supporting plate of the first connection hole, bored plate can be in driving device
Driving under covering be pressed on the first connecting hole and passing through the first sealing structure seals off epicoele and cavity of resorption；Connect second
It connects and second seals structure is provided between hole and valve rod, second seals structure makes to be tightly connected between the second connecting hole and valve rod；
In cylinder and divide between valve body and be provided with the 3rd sealing structure, the 3rd sealing structure connects the extension bar of cylinder block and cylinder
Place and valve rod are with dividing valve body junction to carry out secondary seal；3rd sealing structure is：It is provided with dividing valve body upper end
Seal case, seal case is by the extension bar junction and valve rod of cylinder block and cylinder and divides valve body junction seal closure
It is placed in seal case；The seal case in seal case outer wall by setting silicone rubber seal backing plate to realize to seal box
The sealing of intracoelomic cavity.
2. the anti-rotten high-performance sealed reversal valve of one kind described in accordance with the claim 1, it is characterised in that：The first sealing knot
Structure is：Corrosion resistant high temperature resistance fluorubber sealing strip is provided on the supporting plate of the first connection hole.
3. the anti-rotten high-performance sealed reversal valve of one kind described in accordance with the claim 1, it is characterised in that：The driving device is
Cylinder, the extension bar of cylinder are fixedly connected with connecting shaft upper end.
4. according to the anti-rotten high-performance sealed reversal valve of one kind described in claim 1,2 or 3, it is characterised in that：Described second
Sealing structure is：Guide holder is fixedly installed in the second connecting hole, packing cavity is provided in guide holder, valve rod passes through filler
It is stretched into after the through hole in bottom of chamber portion in epicoele, is provided with filler and pressing sleeve in packing cavity, pressing sleeve is by hold-down mechanism by filler pressure
Tightly in packing cavity.
5. according to the anti-rotten high-performance sealed reversal valve of one kind described in claim 4, it is characterised in that：The hold-down mechanism
Structure is：Guide holder upper end is provided with the first connecting plate, several 3rd connecting holes are arranged at intervals on the first connecting plate,
Pressing sleeve upper end is provided with the second connecting plate, and several 4th connecting holes, each 3rd connecting hole are arranged at intervals on the second connecting plate
It is corresponded with each 4th connecting hole, each bolt is passed through the first connecting plate and the after corresponding 3rd connecting hole and the 4th connecting hole
Two connecting plates connect, so that filler is pressed in packing cavity by pressing sleeve.
6. according to the anti-rotten high-performance sealed reversal valve of one kind described in claim 1,2 or 3, it is characterised in that：In bored plate and valve
Several stiffener plates made of 0Cr18Ni9Ti, bored plate thickness are respectively arranged between bar and between supporting plate and cavity wall
For 19-22mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400163.8A CN105927761B (en) | 2016-06-08 | 2016-06-08 | A kind of anti-rotten high-performance sealed reversal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400163.8A CN105927761B (en) | 2016-06-08 | 2016-06-08 | A kind of anti-rotten high-performance sealed reversal valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927761A CN105927761A (en) | 2016-09-07 |
| CN105927761B true CN105927761B (en) | 2018-05-29 |
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ID=56833607
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610400163.8A Active CN105927761B (en) | 2016-06-08 | 2016-06-08 | A kind of anti-rotten high-performance sealed reversal valve |
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| CN (1) | CN105927761B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204942622U (en) * | 2015-09-17 | 2016-01-06 | 江苏兴辉炉业科技有限公司 | High temperature resistance antiscour soft seal air reversing valve |
| CN204985924U (en) * | 2015-09-09 | 2016-01-20 | 江苏兴辉炉业科技有限公司 | Explosion -proof heating gas trip valve |
| CN205689829U (en) * | 2016-06-08 | 2016-11-16 | 江苏永钢集团有限公司 | A kind of anti-rotten high-performance sealed reversal valve |
-
2016
- 2016-06-08 CN CN201610400163.8A patent/CN105927761B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204985924U (en) * | 2015-09-09 | 2016-01-20 | 江苏兴辉炉业科技有限公司 | Explosion -proof heating gas trip valve |
| CN204942622U (en) * | 2015-09-17 | 2016-01-06 | 江苏兴辉炉业科技有限公司 | High temperature resistance antiscour soft seal air reversing valve |
| CN205689829U (en) * | 2016-06-08 | 2016-11-16 | 江苏永钢集团有限公司 | A kind of anti-rotten high-performance sealed reversal valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927761A (en) | 2016-09-07 |
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Effective date of registration: 20191220 Address after: 215628, Jiangsu, Suzhou, Zhangjiagang Nanfeng Town, wing Union Patentee after: Jiangsu Soviet Peak Industry Co., Ltd. Address before: Nanfeng town Zhangjiagang city Suzhou city Jiangsu province 215600 wing Jiangsu Yonggang Group Co Ltd Patentee before: Jiangsu Yonggang Group Co., Ltd. |
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