CN107740867B - A kind of ultra-temperature high-pressure stop valve - Google Patents
A kind of ultra-temperature high-pressure stop valve Download PDFInfo
- Publication number
- CN107740867B CN107740867B CN201710859541.3A CN201710859541A CN107740867B CN 107740867 B CN107740867 B CN 107740867B CN 201710859541 A CN201710859541 A CN 201710859541A CN 107740867 B CN107740867 B CN 107740867B
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- Prior art keywords
- wall
- rod
- mounting blocks
- valve
- side wall
- 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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- 239000000956 alloy Substances 0.000 claims description 7
- 235000005121 Sorbus torminalis Nutrition 0.000 claims description 5
- 244000152100 Sorbus torminalis Species 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 3
- 229910001257 Nb alloy Inorganic materials 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- JDGYBSINTTUGIL-UHFFFAOYSA-N [Co].[Ta].[W].[Nb] Chemical compound [Co].[Ta].[W].[Nb] JDGYBSINTTUGIL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000007774 longterm Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 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
- 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
-
- 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
-
- 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
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/487—Attaching valve members to screw-spindles by a fixing element extending in the axial direction of the spindle, e.g. a screw
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of ultra-temperature high-pressure stop valves, including valve body, the upper end of the valve body is equipped with fixed block, through equipped with valve rod on the fixed block, the upper end of the valve rod is equipped with runner, the lower end of the valve rod is equipped with mounting blocks, the middle part of the mounting blocks is equipped with device chamber, described device is intracavitary to be equipped with guide rod, there are two movable plates for socket on the guide rod, the side wall of two movable plates is equipped with inserted link, two inserted links run through the inner wall of device chamber, the side wall of the mounting blocks is set there are two cylindrical cavity, two cylindrical cavities are located at the two sides of device chamber, the inner wall of two cylindrical cavities is equipped with sliding chamber, the sliding chamber is connected to device chamber, the inner wall of the cylindrical cavity is fixedly connected with fixed block.Rationally, easy to operate, changeable type flap greatly improves the service life of product, while reducing the cost of enterprise for structure of the invention design.
Description
Technical field
The present invention relates to valve technology field more particularly to a kind of ultra-temperature high-pressure stop valves.
Background technique
Existing high temperature and high pressure cut-off valve mainly includes valve body, valve deck, valve rod, flap and operating mechanism etc., the valve
Valve is placed in the cavity of valve body, and described valve rod one end is mutually fixedly connected with flap, and the other end is connected with operating mechanism；To protect
Sealing performance is demonstrate,proved, existing flap mostly uses greatly pyramidal structure and fits to form single sealing with valve seat by it, and use is this
Structure is applied on common shut-off valve and can effectively ensure that its sealing performance, and in high temperature and high pressure cut-off valve, since flap is long-term
By the erosion of high-temperature high-pressure medium, flap is be easy to cause under the erosion of high-temperature high-pressure medium using the single seal form of taper
Deformation with valve seat causes to leak；Secondly as flap is for a long time by the erosion of high-temperature high-pressure medium, thus to the corrosion-resistant of flap
Property and hardness have higher requirements, and are manufactured using common iron, are then unable to satisfy technical requirements, be easy to cause the annealing of flap soft
Change, to also cause to reveal；And if be all made of the nickel alloy material of high rigidity, production cost is higher and processing is imitated
Benefit is lower, is unfavorable for processing, and existing valve rod and flap are integrally formed, and often entire shut-off valve is replaced when with changing, in this way
Cause waste.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of superhigh-temperature and-pressure cut-off proposed
Valve, changeable type flap greatly improve the service life of product, while reducing the cost of enterprise.
To achieve the goals above, present invention employs following technical solutions:
A kind of ultra-temperature high-pressure stop valve, including valve body, the upper end of the valve body are equipped with fixed block, pass through on the fixed block
It is equipped with valve rod, the upper end of the valve rod is equipped with runner, and the lower end of the valve rod is equipped with mounting blocks, sets in the middle part of the mounting blocks
Have a device chamber, described device is intracavitary to be equipped with guide rod, on the guide rod socket there are two movable plate, two movable plates
Side wall is equipped with inserted link, and two inserted links run through the inner wall of device chamber, and the side wall of the mounting blocks is set there are two cylindrical cavity, and two
A cylindrical cavity is located at the two sides of device chamber, and the inner wall of two cylindrical cavities is equipped with sliding chamber, and the sliding chamber is connected to device chamber,
The inner wall of the cylindrical cavity is fixedly connected with fixing piece, runs through on the fixing piece and is equipped with the second threaded rod, second threaded rod
It being threadedly coupled with fixing piece, the opposite inner wall of the cylindrical cavity is equipped with sliding slot, it is equipped with rack gear in the sliding slot, the one of the rack gear
End is fixedly connected on the inner wall of sliding slot by elastic device, and one end that second threaded rod is located at rack gear is fixedly connected with teeth
Wheel, the wheel and rack intermeshing, the gear are fixedly connected with push rod, the push rod far from one end of the second threaded rod
Cylindrical cavity and sliding chamber are sequentially passed through, the push rod is fixedly connected on the side wall of movable plate far from one end of gear, the mounting blocks
Side wall be equipped with the first threaded rod, first threaded rod through mounting blocks side wall and extend in cylindrical cavity, first spiral shell
Rasp bar is threadedly coupled with mounting blocks, and the lower section of the mounting blocks is equipped with flap, and the upper end of the flap is equipped with groove, the installation
Block is located in groove, and the opposite inner wall of the groove is equipped with slot corresponding with inserted link position, and the inserted link is located in slot.
Preferably, the surface of the valve body is coated with epoxy zinc rich primer.
Preferably, the surface of the runner is equipped with rubber sleeve, and the rubber sleeve is fixed on the side wall of runner by anti-skid chequer
On, the surface of the runner is equipped with anti-skid chequer.
Preferably, the part that the guide rod is located between two movable plates is arranged with spring, the both ends point of the spring
It is not fixedly connected on the side wall of two movable plates.
Preferably, the flap and valve rod are all made of the manufacture of tungsten-cobalt tantalum-niobium alloy material, and the valve body and fixed block are equal
It is manufactured using GH3128 alloy material.
In the present invention, flap is for a long time by the erosion of high-temperature high-pressure medium after long-term use for shut-off valve, so that shut-off valve exists
It can be reduced using sealing performance after a certain period of time, operator can open valve body at this time, then rotate the first threaded rod, the first spiral shell
It is mobile that rasp bar rotation makes the first threaded rod, and then keeps rack gear mobile, and the mobile band moving gear of rack gear rotates, and gear rotation makes the second spiral shell
Rasp bar rotation, the rotation of the second threaded rod keep the second threaded rod mobile, and the second threaded rod is mobile to make push rod movement, and then makes movable plate
It moves on the guide bar, movable plate is mobile to drive inserted link movement, and then inserted link is made to be detached from slot, and flap is then removed progress more
It changes.Rationally, easy to operate, changeable type flap greatly improves the service life of product, drops simultaneously for structure of the invention design
The cost of Di Liao enterprise.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of ultra-temperature high-pressure stop valve proposed by the present invention；
Fig. 2 is structure enlargement diagram at a kind of A of ultra-temperature high-pressure stop valve proposed by the present invention；
Fig. 3 is structure enlargement diagram at B in Fig. 2.
In figure: 1 valve body, 2 flaps, 3 valve rods, 4 runners, 5 fixed blocks, 6 first threaded rods, 7 push rods, 8 movable plates, 9 guiding
Bar, 10 mounting blocks, 11 inserted links, 12 gears, 13 elastic devices, 14 second threaded rods, 16 fixing pieces.
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.
Referring to Fig.1-3, a kind of ultra-temperature high-pressure stop valve, including valve body 1, the upper end of valve body 1 is equipped with fixed block 5, fixed
Through being equipped with valve rod 3 on block 5, the upper end of valve rod 3 is equipped with runner 4, and the lower end of valve rod 3 is equipped with mounting blocks 10, in mounting blocks 10
Portion is equipped with device chamber, and device is intracavitary to be equipped with guide rod 9, and there are two movable plate 8, the side walls of two movable plates 8 for socket on guide rod 9
It is equipped with inserted link 11, two inserted links 11 run through the inner wall of device chamber, and the side wall of mounting blocks 10 sets that there are two cylindrical cavity, two cylindrical cavities
Positioned at the two sides of device chamber, the inner wall of two cylindrical cavities is equipped with sliding chamber, and sliding chamber is connected to device chamber, and the inner wall of cylindrical cavity is fixedly connected
There is fixing piece 16, runs through on fixing piece 16 and be equipped with the second threaded rod 14, the second threaded rod 14 is threadedly coupled with fixing piece 16, cylindrical cavity
Opposite inner wall is equipped with sliding slot, and rack gear is equipped in sliding slot, and one end of rack gear is fixedly connected on sliding slot by elastic device 13
On inner wall, one end that the second threaded rod 14 is located at rack gear is fixedly connected with gear 12, and gear 12 and rack gear are intermeshed, the first spiral shell
Rasp bar 6 is mobile, and then keeps rack gear mobile, and the mobile band moving gear 12 of rack gear rotates, the one end of gear 12 far from the second threaded rod 14
It is fixedly connected with push rod 7, the rotation of gear 12 rotates the second threaded rod 14, and the rotation of the second threaded rod 14 moves the second threaded rod 14
Dynamic, the second threaded rod 14 is mobile to keep push rod 7 mobile, and push rod 7 sequentially passes through cylindrical cavity and sliding chamber, the one end of push rod 7 far from gear 12
It is fixedly connected on the side wall of movable plate 8, the side wall of mounting blocks 10 is equipped with the first threaded rod 6, and the first threaded rod 6 runs through mounting blocks
10 side wall simultaneously extends in cylindrical cavity, and the first threaded rod 6 is threadedly coupled with mounting blocks 10, shut-off valve flap 2 after long-term use
For a long time by the erosion of high-temperature high-pressure medium, so that sealing performance can reduce shut-off valve after a certain period of use time, operator at this time
Valve body 1 can be opened, then rotate the first threaded rod 6, the rotation of the first threaded rod 6 keeps the first threaded rod 6 mobile, mounting blocks 10
Lower section is equipped with flap 2, and the upper end of flap 2 is equipped with groove, and mounting blocks 10 are located in groove, and the opposite inner wall of groove is equipped with and inserted link
The corresponding slot in 11 positions, inserted link 11 are located in slot, and push rod 7 is mobile, and then moves movable plate 8 on guide rod 9, living
Movable plate 8 is mobile to drive the movement of inserted link 11, and then inserted link 11 is made to be detached from slot, then removes flap 2 and replaces.
In the present invention, the surface of valve body 1 is coated with epoxy zinc rich primer, and the surface of runner 4 is equipped with rubber sleeve, and rubber sleeve is logical
It crosses anti-skid chequer to be fixed on the side wall of runner 4, the surface of runner 4 is equipped with anti-skid chequer, and guide rod 9 is located between two movable plates 8
Part be arranged with spring, the both ends of spring are respectively fixedly connected on the side wall of two movable plates 8, and flap 2 is adopted with valve rod 3
Manufactured with tungsten-cobalt tantalum-niobium alloy material, valve body 1 and fixed block 5 be all made of GH3128 alloy material manufacture.
In the present invention, flap 2 is for a long time by the erosion of high-temperature high-pressure medium after long-term use for shut-off valve, so that shut-off valve exists
It can be reduced using sealing performance after a certain period of time, operator can open valve body 1 at this time, then rotate the first threaded rod 6, first
It is mobile that the rotation of threaded rod 6 makes the first threaded rod 6, and then keeps rack gear mobile, and the mobile band moving gear 12 of rack gear rotates, and gear 12 rotates
Rotate the second threaded rod 14, the rotation of the second threaded rod 14 keeps the second threaded rod 14 mobile, and the movement of the second threaded rod 14 makes push rod 7
It is mobile, and then move movable plate 8 on guide rod 9, movable plate 8 is mobile to drive the movement of inserted link 11, and then is detached from inserted link 11
Then flap 2 is removed and is replaced by slot.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of ultra-temperature high-pressure stop valve, including valve body (1), which is characterized in that the upper end of the valve body (1) is equipped with fixed block
(5), through valve rod (3) are equipped on the fixed block (5), the upper end of the valve rod (3) is equipped with runner (4), the valve rod (3)
Lower end is equipped with mounting blocks (10), and the middle part of the mounting blocks (10) is equipped with device chamber, and described device is intracavitary to be equipped with guide rod (9),
There are two movable plate (8), the side wall of two movable plates (8) to be equipped with inserted link (11) for socket on the guide rod (9), and two
The inserted link (11) runs through the inner wall of device chamber, and the side wall of the mounting blocks (10) is set there are two cylindrical cavity, two cylindrical cavities
Positioned at the two sides of device chamber, the inner wall of two cylindrical cavities is equipped with sliding chamber, and the sliding chamber is connected to device chamber, the cylindrical cavity
Inner wall is fixedly connected with fixing piece (16), through equipped with the second threaded rod (14), second screw thread on the fixing piece (16)
Bar (14) is threadedly coupled with fixing piece (16), and the opposite inner wall of the cylindrical cavity is equipped with sliding slot, is equipped with rack gear, institute in the sliding slot
The one end for stating rack gear is fixedly connected on the inner wall of sliding slot by elastic device (13), and second threaded rod (14) is located at rack gear
One end be fixedly connected with gear (12), the gear (12) and rack gear are intermeshed, and the gear (12) is far from the second screw thread
One end of bar (14) is fixedly connected with push rod (7), and the push rod (7) sequentially passes through cylindrical cavity and sliding chamber, and the push rod (7) is far from tooth
One end of wheel (12) is fixedly connected on the side wall of movable plate (8), and the side wall of the mounting blocks (10) is equipped with the first threaded rod
(6), first threaded rod (6) is run through the side wall of mounting blocks (10) and is extended in cylindrical cavity, first threaded rod (6) and peace
It fills block (10) to be threadedly coupled, the lower section of the mounting blocks (10) is equipped with flap (2), and the upper end of the flap (2) is equipped with groove, institute
It states mounting blocks (10) to be located in groove, the opposite inner wall of the groove is equipped with slot corresponding with inserted link (11) position, described
Inserted link (11) is located in slot.
2. a kind of ultra-temperature high-pressure stop valve according to claim 1, which is characterized in that the surface of the valve body (1) applies
It is covered with epoxy zinc rich primer.
3. a kind of ultra-temperature high-pressure stop valve according to claim 1, which is characterized in that the surface of the runner (4) is set
Rubber sleeve, the rubber sleeve are fixed on the side wall of runner (4) by anti-skid chequer, and the surface of the runner (4) is equipped with anti-skidding
Line.
4. a kind of ultra-temperature high-pressure stop valve according to claim 1, which is characterized in that the guide rod (9) is located at two
Part between a movable plate (8) is arranged with spring, and the both ends of the spring are respectively fixedly connected in the side of two movable plates (8)
On wall.
5. a kind of ultra-temperature high-pressure stop valve according to claim 1, which is characterized in that the flap (2) and valve rod (3)
It is all made of the manufacture of tungsten-cobalt tantalum-niobium alloy material, the valve body (1) and fixed block (5) are all made of the manufacture of GH3128 alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859541.3A CN107740867B (en) | 2017-09-21 | 2017-09-21 | A kind of ultra-temperature high-pressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859541.3A CN107740867B (en) | 2017-09-21 | 2017-09-21 | A kind of ultra-temperature high-pressure stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107740867A CN107740867A (en) | 2018-02-27 |
| CN107740867B true CN107740867B (en) | 2019-03-26 |
Family
ID=61235466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710859541.3A Active CN107740867B (en) | 2017-09-21 | 2017-09-21 | A kind of ultra-temperature high-pressure stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107740867B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469738B (en) * | 2018-12-06 | 2019-12-13 | 深圳市广安消防装饰工程有限公司 | Fire alarm safety valve |
| CN109944953B (en) * | 2019-03-15 | 2020-03-31 | 汉工阀门股份有限公司 | High-pressure straight-flow stop valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE650369C (en) * | 1937-09-18 | Carl Sandmann Fa | Screw-down valve | |
| CN105840840A (en) * | 2016-06-13 | 2016-08-10 | 浙江新昌三瑞香雪冲业有限公司 | Valve |
| CN106224560A (en) * | 2016-08-29 | 2016-12-14 | 约翰斯顿流体科技（无锡）有限公司 | A kind of regulation valve being conveniently replaceable rubber ring |
| CN206130275U (en) * | 2016-10-26 | 2017-04-26 | 江苏腾龙石化机械有限公司 | Meshing slidingtype stop valve |
| CN107120442A (en) * | 2017-06-20 | 2017-09-01 | 盐城市星火阀业制造股份有限公司 | The valve body and valve seat connecting structure of a kind of butterfly valve |
-
2017
- 2017-09-21 CN CN201710859541.3A patent/CN107740867B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE650369C (en) * | 1937-09-18 | Carl Sandmann Fa | Screw-down valve | |
| CN105840840A (en) * | 2016-06-13 | 2016-08-10 | 浙江新昌三瑞香雪冲业有限公司 | Valve |
| CN106224560A (en) * | 2016-08-29 | 2016-12-14 | 约翰斯顿流体科技（无锡）有限公司 | A kind of regulation valve being conveniently replaceable rubber ring |
| CN206130275U (en) * | 2016-10-26 | 2017-04-26 | 江苏腾龙石化机械有限公司 | Meshing slidingtype stop valve |
| CN107120442A (en) * | 2017-06-20 | 2017-09-01 | 盐城市星火阀业制造股份有限公司 | The valve body and valve seat connecting structure of a kind of butterfly valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107740867A (en) | 2018-02-27 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An ultra high temperature and high pressure stop valve Effective date of registration: 20201224 Granted publication date: 20190326 Pledgee: Tongling Credit Financing Guarantee Group Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2020980009893 |
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Date of cancellation: 20211104 Granted publication date: 20190326 Pledgee: Tongling Credit Financing Guarantee Group Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2020980009893 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An ultra-high temperature and high pressure stop valve Effective date of registration: 20211105 Granted publication date: 20190326 Pledgee: Tongling Credit Financing Guarantee Group Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2021340000022 |
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Date of cancellation: 20220721 Granted publication date: 20190326 Pledgee: Tongling Credit Financing Guarantee Group Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2021340000022 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An ultra high temperature and high pressure stop valve Effective date of registration: 20220728 Granted publication date: 20190326 Pledgee: Tongling Credit Financing Guarantee Group Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2022340000022 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230801 Granted publication date: 20190326 Pledgee: Tongling Credit Financing Guarantee Group Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2022340000022 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An ultra-high temperature and high pressure shut-off valve Effective date of registration: 20230808 Granted publication date: 20190326 Pledgee: Tongling Credit Financing Guarantee Group Co.,Ltd. Pledgor: Anhui Rongda Valve Co.,Ltd. Registration number: Y2023980051353 |