CN103822776B - Lever safety on line valve calibration equipment - Google Patents
Lever safety on line valve calibration equipment Download PDFInfo
- Publication number
- CN103822776B CN103822776B CN201410059383.XA CN201410059383A CN103822776B CN 103822776 B CN103822776 B CN 103822776B CN 201410059383 A CN201410059383 A CN 201410059383A CN 103822776 B CN103822776 B CN 103822776B
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- valve
- hydraulic cylinder
- pole
- safety valve
- pulling force
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Abstract
The invention discloses a kind of lever safety on line valve calibration equipment.Two V-type lower beam one end are hinged, the two ends of pole setting nut are supported on one end of upper boom and lower beam respectively, on pole bolt indentation and upper boom one end hinged, the mid point installing pulling force sensor of upper boom, lower extension iron chains and chuck have the clamp device of horizontal dentation lines, hydraulic hand-pump is connected with single-action hydraulic cylinder, hydraulic cylinder places by hydraulic cylinder the openend that plate is placed on lower beam, hydraulic cylinder push rod contacts with upper boom, displacement transducer is installed bottom hydraulic cylinder, the V-arrangement that two depression bars protrude built with valve body of safety valve, with locking device fastening safety valve valve neck; Clamp device energy fastening safety valve valve rod, safety valve valve rod and pulling force sensor are coaxially installed, and displacement is connected with data processor by data cable with pulling force sensor.The present invention adopts lever principle poppet stem, effectively reduces power and the volume of hoisting gear, and verification is fast, accurately, applied widely, effectively can improve checkability.
Description
Technical field
The present invention relates to testing device of safety valve, especially relate to a kind of lever safety on line valve calibration equipment.
Background technology
Testing device of safety valve is the important checkout equipment of safety valve testing mechanism, large chemical complex and safety valve manufacturer.Safety valve on-line testing is an important detection business of safety valve testing, for large-sized station boiler, large scale chemical plant, it is quick, efficient, economy is that safety valve off-line verification is incomparable, but certain defect all deposited by current safety valve on-line testing instrument.Such as: (1) Assembling is wasted time and energy; (2) during field-checking, displacement is sentenced out, and causes opening pressure to judge inaccurate because displacement is less; (3) during safety valve on-line testing, safety valve on-line testing instrument needs fastening safety valve valve rod, and safety valve valve rod is not of uniform size, valve rod divides into again threaded valve rod and non-band screw thread valve rod (i.e. polished rod); Multiple kinds of molds is needed, when valve rod is polished rod often because of clamping force slippage not when valve rod is screw thread.
For conventional safety valve on-line testing instrument and safety valve connected mode, be divided into two classes: a class is frame-type, a class is tandem, and lever safety on line valve calibration equipment is the 3rd class mode being different from above two classes.
At present, the safety valve on-line testing instrument being extensively exclusively used in field-checking is also few, and domestic manufacturing firm mainly concentrates on Beijing.The sentencing out criterion and can be divided into so a few class of safety valve on-line testing instrument: spring performance method, displacement sentence out method, audio frequency sentences Kai Fa and the combination of this several method.Technology is the most ripe, opening pressure judge be the most accurately spring performance method assist displacement to sentence out method sentence out criterion.The precision that lever safety on line valve calibration equipment can make displacement sentence out method improves twice, makes displacement sentence out method and is fully played.
Summary of the invention
In order to overcome the deficiency of above-mentioned background technology, the object of the present invention is to provide a kind of lever safety on line valve calibration equipment, realizing that safety valve is quick, portable, on-line testing exactly.
The technical solution adopted for the present invention to solve the technical problems is:
The present invention includes: bolt, upper boom, pulling force sensor, iron chains, clamp device, data processor, displacement transducer, locking device on bolt, pole setting nut, pole under lower beam, pole; Lower beam is downward-sloping by one end, two depression bars of middle part forming V-shape protruding upward form, it is hinged that the beveled end of two depression bars forms pole by pin-and-hole and ladder pin lower end, the two ends of pole setting nut are threaded with the lower end of bolt under the pole of ladder pin upper end and the upper bolt of pole respectively, on pole, the upper end of bolt has groove, hinged by one end of the upper bolt pin of pole and upper boom, the point midway installing pulling force sensor of upper boom lower surface, hang with iron chains below pulling force sensor, iron chains be used for one end of clamp device of fastening safety valve valve rod and be connected; Two depression bar V-arrangements of lower beam are outwards most advanced and sophisticated, and the position of openend is provided with the locking device for fastening safety valve valve neck, the V-arrangement that two depression bars protrude built with valve body of safety valve, with locking device fastening safety valve valve neck; The other end energy fastening safety valve valve rod of clamp device, safety valve valve rod and pulling force sensor are coaxially installed, and pulling force sensor is connected with data processor by data cable.
Described locking device is equipped with hydraulic cylinder on two connecting rods of openend places plate, hydraulic hand-pump is connected with single-action hydraulic cylinder by oil pipe, single-action hydraulic cylinder is fixed on hydraulic cylinder and places on plate, the push rod of single-action hydraulic cylinder contacts with the lower surface of upper boom, displacement transducer is arranged on the bottom of single-action hydraulic cylinder, and displacement transducer is connected with data processor by data cable.
Described clamp device is scissor lever construction, is connected inside one end two of spider with iron chains, has horizontal dentation lines inside the other end two of spider, fastening safety valve valve rod.
Described locking device is that screw pair connects.
Compared with background technology, the beneficial effect that the present invention has is:
1. apparatus of the present invention adopt lever principle to promote safety valve valve rod, greatly reduce required lifting force, reduce power and the volume of safety valve on-line testing instrument hoisting gear, when the opening pressure of safety valve of required verification is lower, manually lever promotes, save the time needed for promoting, improve checkability.
2. symmetrical expression lever makes lifting force reduce half, displacement equations one times, can increase the accuracy that displacement judges.
3. lever construction is convenient to the Installation Modes changing force snesor, and can be realized by the form of drawing or pressing, the installation of lever also makes various sensor reasonably be arranged.
4. clamping device uses scissor lever, applied widely, and scissors bit is provided with energy movable transverse to teeth, clamping device is made to have versatility, the on-the-spot frequent time changing chuck can be saved, no matter for polished rod type or the safety valve valve rod of screw-type, all reliable holding force can be provided.
5. apparatus of the present invention conveniently can realize oil pressure, manual two kinds of Lifting schemes, for the safety valve of different size, have flexibility of operation.
6. apparatus of the present invention can adopt unitized parts, favourable standardized production, reduce maintenance cost.
Accompanying drawing explanation
Fig. 1 is lever safety on line valve calibration equipment structural representation of the present invention.
Fig. 2 is lower beam structure vertical view of the present invention.
In figure: 1. bolt pin under pole, 2. lower beam, 3. bolt under pole, 4. pole setting nut, 5. the upper bolt of pole, 6. pole upper bolt pin, 7. upper boom, 8. pulling force sensor, 9. iron chains, 10. clamp device, 11. safety valve valve rods, 12. safety valve valve necks, 13. single-action hydraulic cylinders, 14. data processors, 15. hydraulic hand-pumps, 16. oil pipes, 17. displacement transducers, 18. hydraulic cylinders place plate, 19. valve body of safety valves, 20. locking devices, 21. pin-and-holes.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the present invention includes: under lower beam 2, pole, on bolt 3, pole setting nut 4, pole, bolt 5, upper boom 7, pulling force sensor 8, iron chains 9, clamp device 10, single-action hydraulic cylinder 13, data processor 14, hydraulic hand-pump 15, displacement transducer 17, hydraulic cylinder place plate 18, locking device 20, lower beam 2 is downward-sloping by one end, two depression bar compositions of middle part forming V-shape protruding upward, it is hinged that the beveled end of two depression bars forms pole by pin-and-hole 21 and ladder pin lower end, under pole, bolt pin 1 inserts under ladder pin and is located by lower beam 2 in stomidium, the two ends of pole setting nut 4 are threaded with the lower end of bolt 3 under the pole of ladder pin upper end and the upper bolt 5 of pole respectively, on pole, the upper end of bolt 5 has groove, hinged with one end of upper boom 7 by the upper bolt pin 6 of pole, the point midway installing pulling force sensor 8 of upper boom 7 lower surface, pulling force sensor 8 hangs with iron chains 9 below, iron chains 9 be used for one end of clamp device 10 of fastening safety valve valve rod 11 and be connected, two depression bar V-arrangements of lower beam 2 are outwards most advanced and sophisticated, and the position of openend is provided with V-arrangement that locking device 20, two depression bars for fastening safety valve valve neck 12 protrude built with valve body of safety valve 19, with locking device 20 fastening safety valve valve neck 12, the other end energy fastening safety valve valve rod 11 of clamp device 10, safety valve valve rod 11 and pulling force sensor 8 are coaxially installed, and pulling force sensor 8 is connected with data processor 14 by data cable.
Can bidirectional modulation pole height by the screw thread of pole setting nut 4, before verification, rotate pole setting nut 4 and can make upper boom 7 and lower beam 2 keeping parallelism.On pole, the upper end of bolt 5 has groove, is connected, and forms the fulcrum of lever by the upper bolt pin 6 of pole with upper boom 7.
Described locking device 20 is equipped with hydraulic cylinder on two connecting rods of openend places plate 18, hydraulic hand-pump 15 is connected with single-action hydraulic cylinder 13 by oil pipe 16, single-action hydraulic cylinder 13 is fixed on hydraulic cylinder and places on plate 18, the push rod of single-action hydraulic cylinder 13 contacts with the lower surface of upper boom 7, displacement transducer 17 is arranged on the bottom of single-action hydraulic cylinder 13, and displacement transducer 17 is connected with data processor 14 by data cable.
Described clamp device 10 is scissor lever constructions, be connected with iron chains 9 inside one end two of spider, inside the other end two of spider, there is horizontal dentation lines, fastening safety valve valve rod 11, while can ensureing to clamp the valve rod of different size and promote, can not skidding be produced.
Described locking device 20 is that screw pair connects.
Displacement transducer 17, pulling force sensor 8 and data processor 14 are standard component, can commercially choose.
Principle of work of the present invention is as follows:
Before starting verification, lower beam is clamped safety valve valve neck 12, safety valve is locked with locking device 20, regulate pole setting nut 4, make lower beam keeping parallelism, hydraulic cylinder single-action hydraulic cylinder 13 being placed on lower beam openend is placed on plate, and regulate single-action hydraulic cylinder 13 position to aim at the graticule of upper boom to push rod, namely the distance of graticule and pulling force sensor fixed position equals the fixed position distance of upper boom other end fulcrum and sensor.
When starting to verify, slowly operation hydraulic hand-pump 15 makes hydraulic cylinder 13 promote upper boom 7, and the small size rotation of upper boom 7 drives clamp device 10 clamp and lift safety valve valve rod 11, and pressurization hydraulic hand-pump 15 is till safety valve valve rod 11 pulls valve clack of safety valve to open.Pulling force sensor 8 and the signal real-time Transmission measured by displacement transducer 17 are to data processor 14, and data processor 14 carries out data processing, convert out valve rod 11 displacement, according to the set-pressure sentencing out rule determination safety valve according to the displacement of hydraulic cylinder push rod.
The present invention also can adopt hand hoisting mode.When the safety valve pressure less grade verified, can manual mode be adopted, remove hydraulic lifting apparatus, directly go up bar 7 with portable, also can increase lifting moment at lifting end adjunction stock of upper boom 7 if desired.
Above-mentioned embodiment is used for explaining and the present invention is described, instead of limits the invention, and in the protection domain of spirit of the present invention and claim, any amendment make the present invention and change, all fall into protection scope of the present invention.
Claims (4)
1. a lever safety on line valve calibration equipment, it is characterized in that, comprising: bolt (5), upper boom (7), pulling force sensor (8), iron chains (9), clamp device (10), data processor (14), displacement transducer (17), locking device (20) on bolt (3), pole setting nut (4), pole under lower beam (2), pole;
Lower beam (2) is downward-sloping by one end, two depression bar compositions of middle part forming V-shape protruding upward, it is hinged that the beveled end of two depression bars forms pole by pin-and-hole (21) and ladder pin lower end, the two ends of pole setting nut (4) are threaded with the upper end of bolt (3) under the pole of ladder pin upper end and the lower end of the upper bolt (5) of pole respectively, on pole, the upper end of bolt (5) has groove, hinged with one end of upper boom (7) by the upper bolt pin (6) of pole, point midway installing pulling force sensor (8) of upper boom (7) lower surface, pulling force sensor (8) hangs with iron chains (9) below, iron chains (9) be used for one end of clamp device (10) of fastening safety valve valve rod (11) and be connected, two depression bar V-arrangements of lower beam (2) are outwards most advanced and sophisticated, the position of openend is provided with the locking device (20) for fastening safety valve valve neck (12), the V-arrangement that two depression bars protrude built with valve body of safety valve (19), with locking device (20) fastening safety valve valve neck (12), other end energy fastening safety valve valve rod (11) of clamp device (10), safety valve valve rod (11) and pulling force sensor (8) are coaxially installed, and pulling force sensor (8) is connected with data processor (14) by data cable.
2. a kind of lever safety on line valve calibration equipment according to claim 1, it is characterized in that: the locking device (20) of described lower beam is equipped with hydraulic cylinder on two depression bars of openend places plate (18), hydraulic hand-pump (15) is connected with single-action hydraulic cylinder (13) by oil pipe (16), single-action hydraulic cylinder (13) is fixed on hydraulic cylinder and places on plate (18), the push rod of single-action hydraulic cylinder (13) contacts with the lower surface of upper boom (7), displacement transducer (17) is arranged on the bottom of single-action hydraulic cylinder (13), displacement transducer (17) is connected with data processor (14) by data cable.
3. a kind of lever safety on line valve calibration equipment according to claim 1, it is characterized in that: described clamp device (10) is scissor lever construction, be connected with iron chains (9) inside one end two of spider, inside the other end two of spider, there is horizontal dentation lines, fastening safety valve valve rod (11).
4. a kind of lever safety on line valve calibration equipment according to claim 1, is characterized in that: described locking device (20) is that screw pair connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059383.XA CN103822776B (en) | 2014-02-21 | 2014-02-21 | Lever safety on line valve calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410059383.XA CN103822776B (en) | 2014-02-21 | 2014-02-21 | Lever safety on line valve calibration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103822776A CN103822776A (en) | 2014-05-28 |
| CN103822776B true CN103822776B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410059383.XA Expired - Fee Related CN103822776B (en) | 2014-02-21 | 2014-02-21 | Lever safety on line valve calibration equipment |
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| CN (1) | CN103822776B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706304B (en) * | 2017-03-03 | 2023-09-05 | 广东省特种设备检测研究院湛江检测院 | Lever type safety valve online verification device |
| CN106768989B (en) * | 2017-03-03 | 2019-02-19 | 广东省特种设备检测研究院湛江检测院 | A kind of on-line testing method applied to lever safety valve |
| CN108168867B (en) * | 2017-12-29 | 2024-03-19 | 苏州瑞艾思机械设备有限公司 | Mechanical property detection mechanism for automobile headlight regulator |
| CN109084972B (en) * | 2018-07-26 | 2019-08-09 | 大连理工大学 | A kind of test device and test method for safety valve valve disc lift |
| CN112176906B (en) * | 2020-09-10 | 2022-05-10 | 北京弋宸时代科技有限公司 | Fixing device of pavement sensor |
| CN114235370B (en) * | 2021-12-17 | 2024-06-18 | 中国核动力研究设计院 | Measuring device and method for output precision of electromagnetic actuating mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202814695U (en) * | 2012-09-04 | 2013-03-20 | 李治涛 | Safety valve online detection device |
| CN203065092U (en) * | 2013-02-18 | 2013-07-17 | 吴江 | Scissor type hydraulic and electric lifting jack |
| CN103278314A (en) * | 2013-04-28 | 2013-09-04 | 江南大学 | Safety valve check bench |
| CN103512744A (en) * | 2013-10-11 | 2014-01-15 | 江南大学 | Safety protecting and hoisting device of safety valve calibration console |
| CN203732262U (en) * | 2014-02-21 | 2014-07-23 | 杭州市特种设备检测研究院 | Lever-type online safety valve calibration device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3246695B2 (en) * | 1993-10-27 | 2002-01-15 | 株式会社ユニシアジェックス | Valve operation check device |
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2014
- 2014-02-21 CN CN201410059383.XA patent/CN103822776B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202814695U (en) * | 2012-09-04 | 2013-03-20 | 李治涛 | Safety valve online detection device |
| CN203065092U (en) * | 2013-02-18 | 2013-07-17 | 吴江 | Scissor type hydraulic and electric lifting jack |
| CN103278314A (en) * | 2013-04-28 | 2013-09-04 | 江南大学 | Safety valve check bench |
| CN103512744A (en) * | 2013-10-11 | 2014-01-15 | 江南大学 | Safety protecting and hoisting device of safety valve calibration console |
| CN203732262U (en) * | 2014-02-21 | 2014-07-23 | 杭州市特种设备检测研究院 | Lever-type online safety valve calibration device |
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| CN103822776A (en) | 2014-05-28 |
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Granted publication date: 20160217 |