CN101994847A - Quick opening-closing safety cutoff electric ball valve - Google Patents
Quick opening-closing safety cutoff electric ball valve Download PDFInfo
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- CN101994847A CN101994847A CN 200910184171 CN200910184171A CN101994847A CN 101994847 A CN101994847 A CN 101994847A CN 200910184171 CN200910184171 CN 200910184171 CN 200910184171 A CN200910184171 A CN 200910184171A CN 101994847 A CN101994847 A CN 101994847A
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- ball valve
- valve seat
- electric ball
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Abstract
The invention relates to a quick opening-closing safety cutoff electric ball valve. The valve comprises a wiring terminal, a valve seat, a ball body and valve seat sealing gaskets at channel ports on the two sides of the ball body, wherein the valve seat is provided with a connecting frame; a valve rod contacted with the ball body is arranged in the connecting frame; the connecting frame is provided with a base plate; the lower end face of the base plate is provided with a cam connected with the valve rod; a plurality of micro switches which are alternately pressed by the cam are arranged at the periphery of the cam; the upper end face of the base plate is provided with a high-speed direct-drive precision electric actuator which drives the cam to rotate clockwise; the base plate is provided with an upper cover in which the high-speed direct-drive precision electric actuator is arranged; and the wiring terminal is arranged on the upper cover. Time for closing the ball valve is only 1 second, so the ball valve can be used for occasions without the drive of a compressed air source, is particularly suitable for quickly cutting off all fuels entering a hearth by a boiler hearth safety monitoring system, has a compact structure, high response speed, output torque and output rotating speed and stable performance, meets the specification requirement, is closely closed, is safe and reliable and is convenient to use.
Description
Technical field
The present invention 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: purpose of the present invention 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 invention, 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.Being applicable to that the boiler furnace security monitoring is cut off rapidly in case of necessity enters all fuel that stove is stared at.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 invention.
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 invention 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 200910184171 CN101994847A (en) | 2009-08-26 | 2009-08-26 | Quick opening-closing safety cutoff electric ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910184171 CN101994847A (en) | 2009-08-26 | 2009-08-26 | Quick opening-closing safety cutoff electric ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101994847A true CN101994847A (en) | 2011-03-30 |
Family
ID=43785389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910184171 Pending CN101994847A (en) | 2009-08-26 | 2009-08-26 | Quick opening-closing safety cutoff electric ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101994847A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286902A (en) * | 2016-09-30 | 2017-01-04 | 浙江沁园水处理科技有限公司 | Electrical ball valve |
| CN107327610A (en) * | 2017-07-14 | 2017-11-07 | 宜昌迅达车用技术有限责任公司 | A kind of valve group control module |
| EP4098914A1 (en) * | 2021-05-31 | 2022-12-07 | Goodrich Corporation | Ball valve assembly |
-
2009
- 2009-08-26 CN CN 200910184171 patent/CN101994847A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286902A (en) * | 2016-09-30 | 2017-01-04 | 浙江沁园水处理科技有限公司 | Electrical ball valve |
| CN106286902B (en) * | 2016-09-30 | 2019-06-14 | 浙江沁园水处理科技有限公司 | Electrical ball valve |
| CN107327610A (en) * | 2017-07-14 | 2017-11-07 | 宜昌迅达车用技术有限责任公司 | A kind of valve group control module |
| CN107327610B (en) * | 2017-07-14 | 2023-07-11 | 宜昌迅达车用技术有限责任公司 | Angle control circuit of valve bank and valve bank control method |
| EP4098914A1 (en) * | 2021-05-31 | 2022-12-07 | Goodrich Corporation | Ball valve assembly |
| US11873910B2 (en) | 2021-05-31 | 2024-01-16 | Goodrich Corporation | Ball valve assembly |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110330 |