CN204692726U - A kind of high temperature cut-off valve - Google Patents

A kind of high temperature cut-off valve Download PDF

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Publication number
CN204692726U
CN204692726U CN201520399907.XU CN201520399907U CN204692726U CN 204692726 U CN204692726 U CN 204692726U CN 201520399907 U CN201520399907 U CN 201520399907U CN 204692726 U CN204692726 U CN 204692726U
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CN
China
Prior art keywords
valve
high temperature
position limitation
mechanical position
valve rod
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Active
Application number
CN201520399907.XU
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Chinese (zh)
Inventor
黄子龙
杨铭
张其清
柯大雷
林崇诚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wenzhou Lianhe Intellectual Property Service Co.,Ltd.
Original Assignee
JIANGNAN VALVE CO Ltd
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Priority to CN201520399907.XU priority Critical patent/CN204692726U/en
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Publication of CN204692726U publication Critical patent/CN204692726U/en
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Abstract

A kind of high temperature cut-off valve, by adding a mechanical position limitation nut in the end of valve rod, and is fixed by cotter pin.When valve closing, valve rod driving mechanical stop nut moves downward, arrive on Stem Mut upper-end surface, mechanical position limitation nut has encountered the Stem Mut be fixed, stopping moves downward, prevent flashboard from reaching a standard and cause the locking of valve high temperature, thus prevent serious potential safety hazard and the generation of accident.

Description

A kind of high temperature cut-off valve
Technical field
The utility model relates to valve field, is specifically related to a kind of high temperature cut-off valve.
Background technique
Along with industrial expansion and new energy programme propose, improve turbine parameters, the utilization efficiency increasing the energy is also extremely urgent.And the raising of turbine parameters proposes more harsh requirement to valve.The power station valve of High Temperature High Pressure developed rapidly in recent years.It is little that gate valve has flow resistance, and structure is simple, feature applied widely and being applied on power station valve by a large amount of.But high temperature cut-off valve also can be found everywhere because of the situation of the flashboard locking that reach a standard, high-temperature expansion etc. produces, thus causes serious potential safety hazard and accident.For the situation of high temperature cut-off valve flashboard locking.
Summary of the invention
In order to solve the deficiencies in the prior art, of the present utility modelly provide a kind of high temperature cut-off valve.
The technical solution that the utility model adopts is: a kind of high temperature cut-off valve, comprise valve body, described valve body is provided with Electric actuator, described valve body also includes support and valve rod, Stem Mut is arranged with outside described valve rod, described Stem Mut is provided with mechanical position limitation nut, and described mechanical position limitation nut sleeve is located at outside valve rod and is threaded connection, and described mechanical position limitation nut contacts with Stem Mut upper-end surface and coordinates.
Described valve rod is also provided with cotter pin, and described mechanical position limitation nut sleeve is located in cotter pin, and described cotter pin extrudes with mechanical position limitation nut and coordinates.
Described mechanical position limitation nut also includes adjusting portion, and described adjusting portion is provided with regulating tank.
Described Stem Mut is connected by trapezoidal thread with between valve rod.
Described regulating tank is cross recess, and adjusting portion is divided into four parts by described cross recess.
Also thrust bearing is provided with between described Stem Mut and support.
Described valve rod is provided with through hole, and described cotter pin is fixedly connected on through hole.
The beneficial effects of the utility model are: the utility model provides a kind of high temperature cut-off valve, by adding a mechanical position limitation nut in the end of valve rod, and are fixed by cotter pin.When valve closing, valve rod driving mechanical stop nut moves downward, arrive on Stem Mut upper-end surface, mechanical position limitation nut has encountered the Stem Mut be fixed, stopping moves downward, prevent flashboard from reaching a standard and cause the locking of valve high temperature, thus prevent serious potential safety hazard and the generation of accident.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model mechanical position limitation nut structure schematic diagram.
1-Electric actuator in figure, 2-support, 3-valve rod, 4-thrust bearing, 31-Stem Mut, 32-mechanical position limitation nut, 33-cotter pin, 34-adjusting portion, 35-regulating tank.
Embodiment
Existing composition graphs 1, Fig. 2 are further described the utility model, a kind of high temperature cut-off valve, comprise valve body, described valve body is provided with Electric actuator 1, described valve body also includes support 2 and valve rod 3, be arranged with Stem Mut 31 outside described valve rod 3, described Stem Mut 31 is connected by trapezoidal thread with between valve rod 3.Described Stem Mut 31 is provided with mechanical position limitation nut 32, and described mechanical position limitation nut 32 is set in outside valve rod 3 and is threaded connection, and described mechanical position limitation nut 32 contacts with Stem Mut 31 upper-end surface and coordinates.Described valve rod 3 is also provided with cotter pin 33, and described valve rod 3 is provided with through hole, and described cotter pin 33 is fixedly connected on through hole.Described mechanical position limitation nut 32 is set in cotter pin 33, and described cotter pin 33 extrudes with mechanical position limitation nut 32 and coordinates.When valve closing, valve rod 3 driving mechanical stop nut 32 moves downward, and arrive on Stem Mut 31 upper-end surface, mechanical position limitation nut 32 has encountered the Stem Mut 31 be fixed, and stops moving downward, and prevents flashboard from reaching a standard and causes the locking of valve high temperature; During valve opening, valve rod 3 driving mechanical stop nut 32 leaves the upper-end surface of Stem Mut 31, drives flashboard, thus open valve by T-slot.Prevent flashboard from reaching a standard and cause the locking of valve high temperature, thus prevent serious potential safety hazard and the generation of accident.
Described mechanical position limitation nut 32 also includes adjusting portion 34, and described adjusting portion 34 is provided with regulating tank 35, and described regulating tank 35 is cross recess, and adjusting portion 34 is divided into four parts by described cross recess.Cross recess on mechanical position limitation nut 32 is the position that little trace regulates mechanical stop nut 32, and regulated quantity is 1/4 of regular screw threads end pitch on valve rod 3.
Thrust bearing 4 is also provided with between described Stem Mut 31 and support 2.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (7)

1. a high temperature cut-off valve, comprise valve body, described valve body is provided with Electric actuator (1), described valve body also includes support (2) and valve rod (3), it is characterized in that, described valve rod (3) outside is arranged with Stem Mut (31), described Stem Mut (31) is provided with mechanical position limitation nut (32), described mechanical position limitation nut (32) is set in valve rod (3) outside and is threaded connection, and described mechanical position limitation nut (32) contacts with Stem Mut (31) upper-end surface and coordinates.
2. a kind of high temperature cut-off valve according to claim 1, it is characterized in that, described valve rod (3) is also provided with cotter pin (33), and described mechanical position limitation nut (32) is set in cotter pin (33), and described cotter pin (33) extrudes with mechanical position limitation nut (32) and coordinates.
3. a kind of high temperature cut-off valve according to claim 1, is characterized in that, described mechanical position limitation nut (32) also includes adjusting portion (34), and described adjusting portion (34) is provided with regulating tank (35).
4. a kind of high temperature cut-off valve according to claim 1, is characterized in that, described Stem Mut (31) is connected by trapezoidal thread with between valve rod (3).
5. a kind of high temperature cut-off valve according to claim 3, is characterized in that, described regulating tank (35) is cross recess, and adjusting portion (34) is divided into four parts by described cross recess.
6. a kind of high temperature cut-off valve according to claim 1, is characterized in that, is also provided with thrust bearing (4) between described Stem Mut (31) and support (2).
7. a kind of high temperature cut-off valve according to claim 2, is characterized in that, described valve rod (3) is provided with through hole, and described cotter pin (33) is fixedly connected on through hole.
CN201520399907.XU 2015-06-11 2015-06-11 A kind of high temperature cut-off valve Active CN204692726U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520399907.XU CN204692726U (en) 2015-06-11 2015-06-11 A kind of high temperature cut-off valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520399907.XU CN204692726U (en) 2015-06-11 2015-06-11 A kind of high temperature cut-off valve

Publications (1)

Publication Number Publication Date
CN204692726U true CN204692726U (en) 2015-10-07

Family

ID=54233020

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520399907.XU Active CN204692726U (en) 2015-06-11 2015-06-11 A kind of high temperature cut-off valve

Country Status (1)

Country Link
CN (1) CN204692726U (en)

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GR01 Patent grant
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Effective date of registration: 20230505

Address after: Room 1505-1, Zhanqian Commercial Building, Qiandong Community, Railway Station, Lucheng District, Wenzhou City, Zhejiang Province, 325000

Patentee after: Wenzhou Lianhe Intellectual Property Service Co.,Ltd.

Address before: No. 616 Airport Avenue, Longwan District, Wenzhou City, Zhejiang Province, 325000

Patentee before: JIANGNAN VALVE Co.,Ltd.

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Assignee: Zhejiang Ruizhou Valve Technology Co.,Ltd.

Assignor: Wenzhou Lianhe Intellectual Property Service Co.,Ltd.

Contract record no.: X2023330000402

Denomination of utility model: A high-temperature gate valve

Granted publication date: 20151007

License type: Common License

Record date: 20230718

Assignee: Wenzhou Funa Pound Flange Co.,Ltd.

Assignor: Wenzhou Lianhe Intellectual Property Service Co.,Ltd.

Contract record no.: X2023330000396

Denomination of utility model: A high-temperature gate valve

Granted publication date: 20151007

License type: Common License

Record date: 20230718

Assignee: WENZHOU PIONEER VALVE Co.,Ltd.

Assignor: Wenzhou Lianhe Intellectual Property Service Co.,Ltd.

Contract record no.: X2023330000419

Denomination of utility model: A high-temperature gate valve

Granted publication date: 20151007

License type: Common License

Record date: 20230719

Assignee: ZHEJIANG ZHENGPENG VALVE Co.,Ltd.

Assignor: Wenzhou Lianhe Intellectual Property Service Co.,Ltd.

Contract record no.: X2023330000415

Denomination of utility model: A high-temperature gate valve

Granted publication date: 20151007

License type: Common License

Record date: 20230719

Assignee: Lishui spark Valve Co.,Ltd.

Assignor: Wenzhou Lianhe Intellectual Property Service Co.,Ltd.

Contract record no.: X2023330000414

Denomination of utility model: A high-temperature gate valve

Granted publication date: 20151007

License type: Common License

Record date: 20230719

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Assignee: TIANGONG VALVE GROUP Co.,Ltd.

Assignor: Wenzhou Lianhe Intellectual Property Service Co.,Ltd.

Contract record no.: X2023330000439

Denomination of utility model: A high-temperature gate valve

Granted publication date: 20151007

License type: Common License

Record date: 20230721

Assignee: Star Valve Co.,Ltd.

Assignor: Wenzhou Lianhe Intellectual Property Service Co.,Ltd.

Contract record no.: X2023330000434

Denomination of utility model: A high-temperature gate valve

Granted publication date: 20151007

License type: Common License

Record date: 20230721

EE01 Entry into force of recordation of patent licensing contract
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Assignee: Zhejiang Shuangde Valve Manufacturing Co.,Ltd.

Assignor: Wenzhou Lianhe Intellectual Property Service Co.,Ltd.

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Denomination of utility model: A high-temperature gate valve

Granted publication date: 20151007

License type: Common License

Record date: 20230728

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Assignee: Zhejiang Shenglaite Valve Technology Co.,Ltd.

Assignor: Wenzhou Lianhe Intellectual Property Service Co.,Ltd.

Contract record no.: X2023330000489

Denomination of utility model: A high-temperature gate valve

Granted publication date: 20151007

License type: Common License

Record date: 20230807