CN201507688U - Fast open-close and safe cut-off electric ball valve - Google Patents
Fast open-close and safe cut-off electric ball valve Download PDFInfo
- Publication number
- CN201507688U CN201507688U CN 200920231301 CN200920231301U CN201507688U CN 201507688 U CN201507688 U CN 201507688U CN 200920231301 CN200920231301 CN 200920231301 CN 200920231301 U CN200920231301 U CN 200920231301U CN 201507688 U CN201507688 U CN 201507688U
- Authority
- CN
- China
- Prior art keywords
- valve
- cam
- chassis
- ball valve
- electric ball
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a fast open-close and safe cut-off electric ball valve, comprising a wiring terminal, valve seats, a ball body and valve seat sealing pads at path openings of the two sides of the ball body, wherein the valve seat is provided with a connecting frame which is internally provided with a valve rod contacted with the ball body; the connecting frame is provided with a chassis; the lower end surface of the connecting frame is provided with a cam connected with the valve rod; the periphery of the cam is provided with a plurality of micro switches which are laminated alternatively by the cam; the upper end surface of the chassis is provided with a high-speed direct-acting precision electric actuator which drives the cam to rotate along the clockwise direction; the chassis is provided with an upper cover which arranges the high-speed direct-acting precision electric actuator therein; and the wiring terminal is arranged on the upper cover. The fast open-close and safe cut-off electric ball valve only needs one second for closing, can realize the occasion without compressed air source driving, and is especially applicable to safety monitoring of boiler hearths for fast cutting off all the fuels entering the hearths. The fast open-close and safe cut-off electric ball valve has compact structure, fast speed response, tight closing, safety, reliability, stable performance, large output torque, higher output rotating speed and convenient use, and meets the requirements of the specifications.
Description
Technical field
The utility model relates to a kind of boiler blowout protection technical field, especially a kind of fast opening and closing safety cut-off electric ball valve that is applicable to that different medium fuel boilers such as fuel oil, combustion gas are flame-out.
Background technique
The boiler furnace safety monitoring system is the important system that guarantees safe operation of the boiler, it is finished when occurring jeopardizing the operating mode of boiler safety, cut off all fuel that enter burner hearth rapidly, prevent the generation of furnace explosion accident, and fast opening and closing safety cut-off electric ball valve is the power unit of rapid fuel shutoff.The common electric ball-valve structure that uses adopts part-turn electric actuator to drive ball valve body more at present, carries out 90 degree and rotates, and realizes valve opening and closing.For satisfying certain output torque, the electric actuator speed ratio is bigger, and angular velocity is slow, and often the valve closing time surpassed for tens seconds, and bore is greater than ball valve shut-in time of DN100 even reached for tens seconds.And " fuel oil (gas) burner safety technique rule " requires the oil burner fuel cut-off time≤1s that stops working; When gas control valve turn-offs, valve latus rectum≤DN100's, be no more than safety shutdown in the time of 1s, latus rectum 〉=DN100's, be no more than safety shutdown in the time of 3s, and existing part-turn electric actuator can not satisfy the fast shut-off electric ball valve, therefore be badly in need of a kind of fast opening and closing safety installations, the problem slow to overcome common electric actuator speed, that the valve opening and closing time is long.
Summary of the invention
Technical problem: the purpose of this utility model overcomes the deficiency in the prior art, and a kind of compact structure is provided, and speed responsive is fast, satisfies code requirement, closes tightly safe and reliable fast opening and closing safety cut-off electric ball valve.
Technological scheme: fast opening and closing safety cut-off electric ball valve of the present utility model, comprise tenminal block, valve seat, be located at spheroid and the valve base sealing pad that is located at spheroid both sides path mouth in the valve seat, described valve seat is provided with link press span, be provided with in the link press span and the contacted valve rod of spheroid, link press span is provided with the chassis, the lower end surface on chassis is provided with the cam that is connected with valve rod, being provided with around the cam is subjected to it to replace a plurality of sensitive switches of pressing, the upper-end surface on chassis is provided with and drives the directly moving accurate electric actuator of high speed that the cam clockwise direction rotates, the chassis is provided with and will directly moves the loam cake that accurate electric actuator is placed in one at a high speed, and tenminal block is located at and covers.
Described a plurality of sensitive switch is four, is divided into two groups, and its contact symmetry that meets at right angles is located at four boss places of cam; The directly moving accurate electric actuator of described high speed is that model is that the gear reduction box that the miniature accurate decelerator of YYCJ90L-2-10 is connected as a single entity with it constitutes by model; The connection end cap that described link press span comprises the bearing support that is connected on the valve seat, the conical plate that links to each other with bearing support, links to each other with conical plate and links to each other with base plate constitutes; Described valve base sealing pad is made by high dense carbon fiber reinforced graphite.
Beneficial effect: owing to adopt straight at a high speed moving accurate electric actuator, the motor driving of its electronic fast opening and closing safety cut-off ball valve has the specific function of quick closedown, the decelerator and the gear reduction box of accurate electric actuator are direct-connected integral type, profile is small and exquisite, and not only closing velocity is fast, and the shut-in time only is 1s, can be implemented in the occasion that does not have compressed air gas source to drive, satisfy code requirement, and close tight, safe and reliable.The sense of rotation of accurate electric actuator is that clockwise single direction rotates, cam and spheroid all are that folk prescription is to rotation, can effectively eliminate the gap that mechanical structure produces like this, make that the spheroid passage becomes parallel lines with pipe passage when opening, negotiability is strong, become vertical angle when closing, close tight.Control put in place the position limit switch fixed-site of signal of the sensitive switch of motor rotation and output in addition, the position need not regulated, guarantee that by element precision its position is reliable fully, thus avoided that artificial adjusting brings inaccurate, or reconcile fastening back because transportation, the loosening inefficacy of colliding with and causing.Realize fast opening and closing by motor driving, satisfy safety requirement, have good sealing effect, resistant to elevated temperatures characteristics.Be applicable to that the boiler furnace security monitoring cuts off all fuel enter burner hearth in case of necessity rapidly.Its compact structure, speed responsive is fast, closes tightly, and safety and reliability are stable, and output torque is big, and output speed is higher, and is easy to use, has practicability widely.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A view of figure.
Among the figure: the straight at a high speed moving accurate electric actuator of 1-loam cake, 2-, 3-tenminal block, 4-sensitive switch, 5-link press span, 6-valve rod, 7-valve seat, 8-spheroid, 9-cam, 10-base plate.
Embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
Shown in Figure 1, the fast opening and closing electric ball valve is mainly by straight moving accurate electric actuator 2, tenminal block 3, sensitive switch 4, link press span 5, valve rod 6, valve seat 7, spheroid 8 and cam 9 constitute at a high speed, spheroid 8 is located in the valve seat 7, spheroid 8 both sides path mouths are provided with the valve base sealing pad, and the valve base sealing pad is made by high dense carbon fiber reinforced graphite.Link press span 5 is installed on valve seat 7, link press span 5 mainly is made of bearing support, conical plate and connection end cap, its bottom bracket is connected on the valve seat 7 by bolt, and the joining end bonnet bolt is fixed on the chassis 10, and up big and down small being connected in respectively of conical plate connects between end cap one bearing support.Be provided with in the link press span 5 and spheroid 8 contacted valve rods 6, chassis 10 is installed on the link press span 5, the lower end surface on chassis 10 is fixed with the cam 9 that is connected with valve rod 6, be provided with around the cam 9 and be subjected to alternately four sensitive switches 4 of pressing of cam 9, be divided into up and down and about two groups, the contact of sensitive switch 4 symmetry that meets at right angles is located at four boss places of cam 9.The upper-end surface on chassis 10 is provided with and drives the directly moving accurate electric actuator 2 of high speed that cam 9 clockwise directions rotate, straight at a high speed moving accurate electric actuator 2 is made of the gear reduction box that miniature accurate decelerator is connected as a single entity with it, and its model is YYCJ90L-2-10.Accurate decelerator and gear reduction box are direct-connected integral type, and profile is small and exquisite, and output torque is big, and output speed is higher relatively.Chassis 10 is provided with and will directly moves the loam cake 1 that accurate electric actuator 2 is placed in one at a high speed, and tenminal block 3 is located on the loam cake 1.
Working principle: the output shaft that accurate decelerator gets electric back driven gear speed reducer slowly runs, and output shaft drives valve rod 6 by cam 9, and valve rod 6 drives spheroid 8 rotations again.Simultaneously, cam 9 rotates together, cam 9 controlling two sensitive switches 4 hocket by setup program connection, disconnect action, make accurate decelerator also by setup program alternate rotation, rest, control spheroid 8 is done 90 ° of rotations, realizes the switch of ball valve.Simultaneously up and down and about two groups of sensitive switches 4 simultaneously by alternately pressing, disconnection, send the working state signal of ball valve.
Claims (5)
1. fast opening and closing safety cut-off electric ball valve, comprise tenminal block (3), valve seat (7), be located at the spheroid (8) in the valve seat (7) and be located at the valve base sealing pad of spheroid (8) both sides path mouth, it is characterized in that: described valve seat (7) is provided with link press span (5), be provided with in the link press span (5) and the contacted valve rod of spheroid (8) (6), link press span (5) is provided with chassis (10), the lower end surface on chassis (10) is provided with the cam (9) that is connected with valve rod (6), being provided with around the cam (9) is subjected to it to replace a plurality of sensitive switches (4) of pressing, the upper-end surface on chassis (10) is provided with and drives the directly moving accurate electric actuator (2) of high speed that cam (9) clockwise direction rotates, chassis (10) is provided with and will directly moves the loam cake (1) that accurate electric actuator (2) is placed in one at a high speed, and tenminal block (3) is located on the loam cake (1).
2. according to the described fast opening and closing safety cut-off of claim 1 electric ball valve, it is characterized in that: described a plurality of sensitive switches (4) are four, are divided into two groups, and its contact symmetry that meets at right angles is located at four boss places of cam (9).
3. according to the described fast opening and closing safety cut-off of claim 1 electric ball valve, it is characterized in that: the directly moving accurate electric actuator (2) of described high speed is that the gear reduction box that the miniature accurate decelerator of YYCJ90L-2-10 is connected as a single entity with it constitutes by model.
4. according to the described fast opening and closing safety cut-off of claim 1 electric ball valve, it is characterized in that: the connection end cap that described link press span (5) comprises the bearing support that is connected on the valve seat (7), the conical plate that links to each other with bearing support, links to each other with conical plate and links to each other with base plate (10) constitutes.
5. according to the described fast opening and closing safety cut-off of claim 1 electric ball valve, it is characterized in that: described valve base sealing pad is made by high dense carbon fiber reinforced graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920231301 CN201507688U (en) | 2009-08-26 | 2009-08-26 | Fast open-close and safe cut-off electric ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920231301 CN201507688U (en) | 2009-08-26 | 2009-08-26 | Fast open-close and safe cut-off electric ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507688U true CN201507688U (en) | 2010-06-16 |
Family
ID=42468815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920231301 Expired - Fee Related CN201507688U (en) | 2009-08-26 | 2009-08-26 | Fast open-close and safe cut-off electric ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507688U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103403417A (en) * | 2011-02-23 | 2013-11-20 | 西屋控股公司 | Ball valve with integrated cam-operated internal microswitch |
| CN103791140A (en) * | 2014-01-24 | 2014-05-14 | 南通神华电气有限公司 | Electric valve |
| CN107504250A (en) * | 2017-09-21 | 2017-12-22 | 安徽荣达阀门有限公司 | A kind of solar-electricity movable valve |
| CN110259980A (en) * | 2019-06-17 | 2019-09-20 | 青岛启旋能源装备科技有限公司 | A kind of rotation clutch operating apparatus |
| CN113124193A (en) * | 2019-12-30 | 2021-07-16 | 浙江三花智能控制股份有限公司 | Electric valve, water heater and control method of electric valve |
-
2009
- 2009-08-26 CN CN 200920231301 patent/CN201507688U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103403417A (en) * | 2011-02-23 | 2013-11-20 | 西屋控股公司 | Ball valve with integrated cam-operated internal microswitch |
| CN103403417B (en) * | 2011-02-23 | 2015-08-12 | 西屋控股公司 | Integration has with the ball valve of cam-operated built-in microswitch |
| CN103791140A (en) * | 2014-01-24 | 2014-05-14 | 南通神华电气有限公司 | Electric valve |
| CN107504250A (en) * | 2017-09-21 | 2017-12-22 | 安徽荣达阀门有限公司 | A kind of solar-electricity movable valve |
| CN110259980A (en) * | 2019-06-17 | 2019-09-20 | 青岛启旋能源装备科技有限公司 | A kind of rotation clutch operating apparatus |
| CN113124193A (en) * | 2019-12-30 | 2021-07-16 | 浙江三花智能控制股份有限公司 | Electric valve, water heater and control method of electric valve |
| CN113124193B (en) * | 2019-12-30 | 2023-08-11 | 浙江三花智能控制股份有限公司 | Electric valve, water heater and control method of electric valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201507688U (en) | Fast open-close and safe cut-off electric ball valve | |
| CN101994847A (en) | Quick opening-closing safety cutoff electric ball valve | |
| CN201382432Y (en) | Main chimney baffle door | |
| CN202646801U (en) | High-flow check valve | |
| CN202227861U (en) | Smoke baffle door driving transmission system | |
| CN102384299B (en) | Quick switching device for valve | |
| CN202302215U (en) | Rapid switching device for valve | |
| CN203453324U (en) | Manual clutch mechanism | |
| CN103453182A (en) | High pressure exhaust check valve | |
| CN201032617Y (en) | Water level control switch | |
| CN202812239U (en) | Electric counter weight butterfly valve | |
| CN105333188A (en) | Adjustable pressure release valve | |
| CN201818881U (en) | Gas cut-off valve | |
| CN202057203U (en) | Furnace pressure control device for waste heat power generation system of glass melting furnace | |
| CN204066751U (en) | Angle stroke electronic actuators | |
| CN203051917U (en) | Control device of valve three-interruption protection | |
| CN204328021U (en) | The effective interior pin tooth type gate valve of cogeneration vertically-supplying air | |
| CN201103705Y (en) | Electromagnetic fast gas safety cut-off valve | |
| CN201554882U (en) | Eccentric rotary valve with adjustable sealing force | |
| CN202868021U (en) | Valve emergency closing executive device | |
| CN2911349Y (en) | Rotary diaphragm valve for flow regulation | |
| CN203522425U (en) | Explosion-proof electric actuator | |
| CN216104526U (en) | Coal feeder coal breakage detection alarm device | |
| CN203703333U (en) | Improved fuel gas safety valve | |
| CN216867572U (en) | Ceramic ball valve with torque limiter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 221004 No. 12 Yang Shan Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee after: XUZHOU KERONG ENVIRONMENTAL RESOURCES CO., LTD. Address before: 221009 No. 12 Yang Shan Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee before: Xuzhou Combustion Control Research Institute Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20180826 |