CN203732262U - Lever-type online safety valve calibration device - Google Patents
Lever-type online safety valve calibration device Download PDFInfo
- Publication number
- CN203732262U CN203732262U CN201420075599.0U CN201420075599U CN203732262U CN 203732262 U CN203732262 U CN 203732262U CN 201420075599 U CN201420075599 U CN 201420075599U CN 203732262 U CN203732262 U CN 203732262U
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- safety valve
- hydraulic cylinder
- valve
- rod
- pole
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Abstract
The utility model discloses a lever-type online safety valve calibration device. Two V-shaped lower rods are hinged at one end. Two ends of a supporting rod adjusting nut are supported one end of an upper rod and one end of a lower rod separately. A supporting rod upper bolt groove is hinged with one end of the upper rod. A tension sensor is arranged at the middle point of the upper rod. A hanging chain and a chuck have a clamping device having transverse toothed texture. A manual hydraulic pump is connected with a single-action hydraulic cylinder. The hydraulic cylinder is placed on the open end of the lower rod through a hydraulic cylinder placing board. The ejector pin of the hydraulic cylinder is in contact with the upper rod. A displacement sensor is installed on the bottom portion of the hydraulic cylinder. A safety valve body is installed in the V-shaped raised portion of two compression bars. The safety valve neck is clamped through a locking device. The clamping device can be used to clamp the safety valve rod. The safety valve rod and the tension sensor are installed coaxially. The displacement sensor and the tension sensor are connected with a data processor through data cables. According to the utility model, the valve rod is lifted through the lever principle, so the power and size of the lifting mechanism can be effectively reduced, advantages of fast and accurate calibration and wide application range can be realized, and the inspection efficiency can be effectively improved.
Description
Technical field
The utility model relates to testing device of safety valve, especially relates to a kind of lever safety on line valve calibration equipment.
Background technology
Testing device of safety valve is safety valve testing mechanism, large chemical complex and safety valve manufacturer's important checkout equipment.Safety valve on-line testing is the important detection business of of safety valve testing, for large-sized station boiler, large scale chemical plant, it is quick, efficient, economy is that the verification of safety valve off-line is incomparable, but current safety valve on-line testing instrument is all deposited certain defect.Such as: (1) Assembling is wasted time and energy; (2) displacement is sentenced out when field-checking, causes opening pressure to judge inaccurate because displacement is less; (3) when 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 is divided into again threaded valve rod and non-threaded valve rod (being polished rod); In the time that valve rod is screw thread, need multiple kinds of molds, in the time that valve rod is polished rod often because of not slippage of clamping force.
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 that is different from above two classes.
At present, the safety valve on-line testing instrument that is 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 several classes of safety valve on-line testing instrument: the combination of Kai Fa and this several method is sentenced out method, audio frequency and sentenced in spring performance method, displacement.Technology is the most ripe, opening pressure judges it is the criterion of sentencing out that method is sentenced out in the auxiliary displacement of spring performance method the most accurately.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 purpose of this utility model is to provide a kind of lever safety on line valve calibration equipment, realizes that safety valve is quick, portable, on-line testing exactly.
The utility model solves the technical scheme that its technical matters adopts:
The utility model comprises: 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, the beveled end of two depression bars is hinged by pin-and-hole and ladder pin lower end composition pole, 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, the one end of going up bolt pin and upper boom by pole is hinged, the point midway installing pulling force sensor of upper boom lower surface, below pulling force sensor, hang with iron chains, 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, in the V-arrangement of two depression bar protrusions, valve body of safety valve are housed, 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, and two inner sides, one end of spider are connected with iron chains, and the other end two inner sides of spider have horizontal dentation lines, fastening safety valve valve rod.
Described locking device is that screw pair connects.
Compared with background technology, the beneficial effect the utlity model has is:
1. the utility model device adopts lever principle to promote safety valve valve rod, greatly reduce required lifting force, dwindle power and the volume of safety valve on-line testing instrument hoisting gear, in the time that the opening pressure of safety valve of required verification is lower, promote by hand lever, save the required time that promotes, improve checkability.
2. symmetrical expression lever makes lifting force reduce half, and displacement is put and is twice, and can increase the accuracy that displacement is judged.
3. lever construction is convenient to change the Installation Modes of power sensor, can realize by the form of drawing or pressing, and the installation of lever also makes various sensors reasonably be arranged.
4. clamping device uses scissor lever, applied widely, and scissors bit is provided with energy movable transverse to teeth, make clamping device there is versatility, can save the on-the-spot frequent time of changing chuck, no matter for the safety valve valve rod of polished rod type or screw-type, all can provide reliable holding force.
5. the utility model device can conveniently be realized oil pressure, manual two kinds of Lifting schemes, for the safety valve of different size, has flexibility of operation.
6. the utility model device can adopt unitized parts, and favourable standardized production reduces maintenance cost.
Brief description of the drawings
Fig. 1 is lever safety on line valve calibration equipment structural representation of the present utility model.
Fig. 2 is lower beam structure vertical view of the present utility model.
In figure: 1. bolt pin under pole, 2. lower beam, 3. bolt under pole, 4. pole setting nut, 5. the upper bolt of pole, the 6. upper bolt pin of pole, 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 are placed plate, 19. valve body of safety valves, 20. locking devices, 21. pin-and-holes.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises: 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 are placed 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, the beveled end of two depression bars is hinged with ladder pin lower end composition pole by pin-and-hole 21, under pole, bolt pin 1 inserts under ladder pin and in stomidium, lower beam 2 is located, 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, go up bolt pin 6 by pole hinged with one end of upper boom 7, the point midway installing pulling force sensor 8 of upper boom 7 lower surfaces, 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 in the V-arrangement protruding for 20, two depression bars of locking device of fastening safety valve valve neck 12 valve body of safety valve 19 is housed, with locking device 20 fastening safety valve valve necks 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.
Screw thread by pole setting nut 4 can bidirectional modulation pole height, before verification, rotates pole setting nut 4 and can make upper boom 7 and lower beam 2 keeping parallelisms.On pole, the upper end of bolt 5 has groove, goes up bolt pin 6 and is connected with upper boom 7, and form the fulcrum of lever by pole.
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, two inner sides, one end of spider are connected with iron chains 9, the other end two inner sides of spider have horizontal dentation lines, and fastening safety valve valve rod 11 can not produce and skid when can ensureing the valve rod of different size to clamp and promote.
Described locking device 20 is that screw pair connects.
Displacement transducer 17, pulling force sensor 8 and data processor 14 are standard component, can on market, choose.
Principle of work of the present utility model is as follows:
Start before verification, lower beam is clamped to safety valve valve neck 12, lock safety valve with locking device 20, regulate pole setting nut 4, make lower beam keeping parallelism, the hydraulic cylinder that single-action hydraulic cylinder 13 is placed on to lower beam openend is placed on plate, regulates single-action hydraulic cylinder 13 positions to aim at the graticule of upper boom to push rod, and the distance of graticule and pulling force sensor fixed position equals the fixed position distance of upper boom other end fulcrum and sensor.
While starting verification, slowly operate hydraulic hand-pump 15 and make hydraulic cylinder 13 promote upper boom 7, the small size rotation of upper boom 7 drives clamp device 10 to clamp and lift safety valve valve rod 11, and pressurization hydraulic hand-pump 15 is until safety valve valve rod 11 pulls valve clack of safety valve to open.The measured signal real-time Transmission of pulling force sensor 8 and displacement transducer 17 is to data processor 14, and data processor 14 carries out data processing, and according to hydraulic cylinder push rod, valve rod 11 displacements are converted out in displacement, according to the set-pressure of sentencing out rule and determine safety valve.
The utility model also can adopt hand hoisting mode.When the safety valve pressure grade of verification hour, can adopt manual mode, remove hydraulic lifting apparatus, directly with the portable bar 7 of going up, also can increase lifting moment at stock of lifting end adjunction of upper boom 7 if desired.
Above-mentioned embodiment is used for the utility model of explaining; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment and change that the utility model is made, all fall into protection domain of the present utility model.
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, the beveled end of two depression bars is hinged with ladder pin lower end composition pole by pin-and-hole (21), 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, the upper end of bolt on pole (5) has groove, go up bolt pin (6) by pole hinged with one end of upper boom (7), 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, the position of openend is provided with the locking device (20) for fastening safety valve valve neck (12), in the V-arrangement of two depression bar protrusions, valve body of safety valve (19) is housed, 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.
2. a kind of lever safety on line valve calibration equipment according to claim 1, it is characterized in that: 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), 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, two inner sides, one end of spider are connected with iron chains (9), the other end two inner sides of spider have 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 |
|---|---|---|---|
| CN201420075599.0U CN203732262U (en) | 2014-02-21 | 2014-02-21 | Lever-type online safety valve calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075599.0U CN203732262U (en) | 2014-02-21 | 2014-02-21 | Lever-type online safety valve calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203732262U true CN203732262U (en) | 2014-07-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420075599.0U Expired - Fee Related CN203732262U (en) | 2014-02-21 | 2014-02-21 | Lever-type online safety valve calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203732262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822776A (en) * | 2014-02-21 | 2014-05-28 | 杭州市特种设备检测研究院 | Lever type online safety valve checking device |
| CN106706304A (en) * | 2017-03-03 | 2017-05-24 | 广东省特种设备检测研究院湛江检测院 | On-line verification device for lever-type safety valve |
-
2014
- 2014-02-21 CN CN201420075599.0U patent/CN203732262U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822776A (en) * | 2014-02-21 | 2014-05-28 | 杭州市特种设备检测研究院 | Lever type online safety valve checking device |
| CN103822776B (en) * | 2014-02-21 | 2016-02-17 | 杭州市特种设备检测研究院 | Lever safety on line valve calibration equipment |
| CN106706304A (en) * | 2017-03-03 | 2017-05-24 | 广东省特种设备检测研究院湛江检测院 | On-line verification device for lever-type safety valve |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20160221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |