CN204879440U - Tensile testing device is opened to jar relief valve non - dismantlement state in groove - Google Patents
Tensile testing device is opened to jar relief valve non - dismantlement state in groove Download PDFInfo
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- CN204879440U CN204879440U CN201520596827.3U CN201520596827U CN204879440U CN 204879440 U CN204879440 U CN 204879440U CN 201520596827 U CN201520596827 U CN 201520596827U CN 204879440 U CN204879440 U CN 204879440U
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- safety valve
- sleeve
- groove tank
- explosion
- valve
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Abstract
The utility model discloses a tensile testing device is opened to jar relief valve non - dismantlement state in groove. Explosion -proof sleeve, master collet and stop sleeve be sealing connection in proper order, and the motor suit is in explosion -proof sleeve, and motor and coupling band coaxial arrangement, coupling band are equipped with screw nut, and the screw nut cover is vice at the inner formation lead screw of lead screw, the lead screw outer end is for in taking the screwed step shaft and stretching into the stop sleeve, and lead screw and stop sleeve coaxial arrangement, lead screw outer end thread bush are at the adapter sleeve, and the adapter sleeve thread bush is at the relief valve top, the master collet lateral part is opened there is gaseous output interface, still include PC computer and power module, force sensor and motor are through opening detection module and PC computer link. The utility model discloses can be to groove jar relief valve explosion -proof opening under the not dismantlement state, and realize opening tensile detection, be favorable to improving groove jar detection efficiency.
Description
Technical field
The utility model relates to a kind of valve and opens and detection device, especially relate to a kind of groove tank safety valve non collapsible state and opens stretching force detecting apparatus.
Background technique
Along with the fast development of China's economic construction, get more and more in the items of equipment engineering with pressure management.In view of the needs of equipment pressure release, safety valve plays vital effect in proterctive equipment process.Safety valve is boiler, safety attachment important on pressurized container and other equipment that is stressed.Groove tank safety valve in tank-truck for liquefied petroleum gas or liquefied petroleum gas railway tanker is safe open-shut device, normally off is under spring-loaded, when the pressure medium in groove tank increases to over specified value, exceed the Special valve of specified value by preventing pressure medium in groove tank to discharge medium outside system.Safety valve has run important protective action to personal safety and equipment, and be absolutely necessary important safety attachment.
The groove tank of lng tanker is the one of pressurized container, by " safe technology of pressure vessel Supervision Code ", " liquid gas truck tank safety-supervision regulation " and GB150 " Steel Pressure Vessels " that SBTS promulgates, adopt the special transport vehicle of light-weight design, manufacture, be used to the special purpose vehicle of the liquid gas such as transporting propane, propylene, dimethyl ether, liquefied ammonia, methylamine, acetaldehyde.Groove tank car belongs to special equipment trade, the necessary periodic detection of National Quality Supervision Bureau General's strict regulations lng tanker;
To an important detection in the safety detection of groove tank car, be that the opening force of safety valve detects, the vitals of pressure release when it is normal operation and the superpressure ensureing groove tank.At present, the opening force of safety valve is detected and needs safety valve to disassemble, be put into the opening force that corresponding detection platform could realize safety valve and detect.Safety valve is contained on groove tank, and namely during non collapsible state, its opening force of direct-detection, still can not realize at present.And realize safety valve non collapsible state opening force direct-detection, greatly will improve detection efficiency undoubtedly, and avoid repeatedly dismantling the installation quality problem that may cause.
Model utility content
For realizing safety valve non collapsible state opening force direct-detection, the utility model proposes a kind of groove tank safety valve non collapsible state and opening stretching force detecting apparatus, improving detection efficiency, avoid the installation quality problem that dismounting repeatedly may cause.
The utility model adopts following technological scheme:
In groove tank top, arranged at safety valve installs described device, and described device comprises connecting sleeve, locking nut, stop sleeve, feed screw nut, leading screw, coupling band, motor, master collet and explosion-proof sleeve, and described device is connected with computer through open detection module; Explosion-proof sleeve, master collet and stop sleeve are tightly connected successively, motor to be sleeved in explosion-proof sleeve and to be fixed on master collet end, motor is by explosion-proof sleeve seal protection, coaxially installed by one end of key and coupling band after the output shaft of motor stretches into master collet, in the other end of coupling band, coaxial fixed cover is equipped with feed screw nut, feed screw nut is enclosed within leading screw the inner and forms lead screw pair, is provided with thrust-bearing between feed screw nut and stop sleeve; Leading screw outer end is screwed multidiameter shaft and extend in stop sleeve, leading screw and stop sleeve are coaxially installed, leading screw outer end thread bush is on one end of pulling force sensor, the other end thread bush of pulling force sensor is in one end of connecting sleeve, the other end thread bush of connecting sleeve is at safety valve top, and stop sleeve end face is by seal ring connection safety valve flange; Have gap between stop sleeve inwall and valve gap side face, master collet inner chamber communicates with stop sleeve inner chamber, and master collet sidepiece has the gas output interface of external gas outlet duct; Open detection module and pulling force sensor and motor and open detection model calling.
Described open detection module is installed in explosion-proof electrification box, and motor and pulling force sensor output terminal to be picked out by the approved cable joint on explosion-proof sleeve through approved cable and be connected open detection module.
The safety valve valve gap that described safety valve comprises safety valve thrust spring, the holder of safety valve valve, safety valve connecting rod and covers at groove tank top import and export; Be fixedly connected with by safety valve connecting rod between safety valve valve gap and the holder of safety valve valve, safety valve valve restitope is in groove tank, safety valve thrust spring two ends withstand on groove tank safety valve flange inner wall and the holder of safety valve valve respectively, make safety valve valve gap be pressed on groove tank top import and export by compression thrust, the other end thread bush of described connecting sleeve is at valve gap top side face.
Between described explosion-proof sleeve and master collet, all connected by end flanges between master collet and stop sleeve, and between surface of contact, seal ring is housed, between the end face of stop sleeve and safety valve flange, seal ring is housed.
Described leading screw and connecting sleeve wall are all processed as coarse external screw thread.
Described leading screw and feed screw nut adopt ball-screw nut and ball screw.
Usefulness of the present utility model is:
The utility model can realize the detection of groove tank safety valve non collapsible state being opened to pulling force, improves groove tank detection efficiency, prevents safety valve from repeatedly installing the quality problems that may cause.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model system motion mechanism, pulling force sensor and safety valve.
Fig. 2 is the structural drawing of the utility model system motion mechanism, pulling force sensor and safety valve.
Fig. 3 is the local structural graph of the utility model leading screw attachment portion.
In figure: 1: explosion-proof sleeve; 2: master collet; 3: stop sleeve; 4: groove tank relief valve assembly; 5: motor; 6: coupling band; 7: leading screw; 8: feed screw nut; 9: thrust-bearing; 10: pulling force sensor; 11: connecting sleeve; 12: safety valve valve gap; 13: safety valve flange; 14: safety valve thrust spring; 15: safety valve tightening cover; 16: safety valve lock jack panel; 17: key; 19: groove tank; 29: safety valve connecting rod.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
At groove tank 19 top safety valve 18, the utility model device is installed at place, as shown in Figure 2, device comprises connecting sleeve 11, locking nut 10, stop sleeve 3, feed screw nut 8, leading screw 7, coupling band 6, motor 5, master collet 2 and explosion-proof sleeve 1, and the utility model device is connected with computer through open detection module; Explosion-proof sleeve 1, master collet 2 and stop sleeve 3 are tightly connected successively, motor 5 to be sleeved in explosion-proof sleeve 1 and to be fixed on master collet 2 end, motor 5 is by explosion-proof sleeve 1 seal protection, as shown in Figure 3, coaxially installed by key 17 one end with coupling band 6 after the output shaft of motor 5 stretches into master collet 2, in the other end of coupling band 6, coaxial fixed cover is equipped with feed screw nut 8, and feed screw nut 8 is enclosed within leading screw 7 the inner and forms lead screw pair, is provided with thrust-bearing 9 between feed screw nut 8 and stop sleeve 3; Leading screw 7 outer end is screwed multidiameter shaft and extend in stop sleeve 3, leading screw 7 and stop sleeve 3 are coaxially installed, leading screw 7 outer end thread bush is on one end of pulling force sensor 10, the other end thread bush of pulling force sensor 10 is in one end of connecting sleeve 11, and the other end thread bush of connecting sleeve 11 is at safety valve top; Stop sleeve 3 end face is by seal ring connection safety valve flange 13; Open detection module and pulling force sensor 10 and motor 5 and open detection model calling.
Open detection module is installed in explosion-proof electrification box, and motor 5 and pulling force sensor 10 output terminal to be picked out by the approved cable joint on explosion-proof sleeve 1 through approved cable and be connected open detection module.
The safety valve valve gap 12 that safety valve 18 comprises safety valve thrust spring 14, safety valve valve holder 15, safety valve connecting rod 29 and covers at groove tank 19 top import and export; Be fixedly connected with by safety valve connecting rod 29 between safety valve valve gap 12 and safety valve valve holder 15, safety valve valve holder 15 is positioned at groove tank 19, safety valve thrust spring 14 two ends withstand on groove tank 19 safety valve flange 13 inwall and safety valve valve holder 15 respectively, make safety valve valve gap 12 be pressed on groove tank 19 top import and export by compression thrust, the other end thread bush of connecting sleeve 11 is at valve gap 12 top side face.Safety valve 18 makes arranged at safety valve in normally off under spring force effect; When in groove tank 19, gas pressure is excessive, gas overcomes safety valve thrust spring 14 thrust, backs down safety valve valve gap 12.
Have gap between stop sleeve 3 inwall and valve gap 12 side face, master collet 2 inner chamber communicates with stop sleeve 3 inner chamber, and master collet 2 side has gas output interface, the external gas outlet duct of gas output interface.
Between explosion-proof sleeve 1 and master collet 2, all connected by end flanges between master collet 2 and stop sleeve 3, and between surface of contact, seal ring is housed, between the end face of stop sleeve 3 and safety valve flange 13, seal ring is housed.
Preferred leading screw 7 and connecting sleeve 11 wall are all processed as coarse external screw thread.
Preferred leading screw 7 and feed screw nut 8 adopt ball-screw nut and ball screw.
Concrete implementation process of the present utility model is as follows:
As shown in Figure 1, the utility model device stepper motor 5 Driving Torque, by connecting shaft cover 6, feed screw nut 8 is passed in torque, feed screw nut 8 and leading screw 7 form guide screw movement pair, change into the straight line motion of leading screw 7, leading screw is connected with safety valve valve gap 12 by connecting sleeve 11, due to the existence of frictional force, leading screw 7 can be made not rotate, therefore the rotation of feed screw nut 8 is changed into the extensional motion of leading screw 7, leading screw 7 is connected with one end of pulling force sensor 10, the other end of pulling force sensor is connected with safety valve valve gap 12, therefore pulling force sensor 10 can detect the pulling force in opening process when opening safety valve, but safety valve valve gap bore can be known from the concrete intrinsic parameter of safety valve, and the unlatching pulling force of standard, by detecting the unlatching pulling force and known safety valve valve gap bore that obtain, actual safety valve can be obtained and open pulling force, thus complete unlatching pull force calculation.
Pull force calculation process opened by safety valve, first as shown in Figure 2, before the utility model device is arranged on the valve gap 12 of groove tank safety valve and safety valve flange 13, stretching force detecting apparatus opened by no-load running safety valve in advance, and store pull force calculation data, be subsequently described device is arranged on groove tank safety valve valve gap 12 and safety valve flange 13 on, start open stretching force detecting apparatus.
Thus, the utility model completes the detection of groove tank safety valve being opened to pulling force in non collapsible state, avoid safety valve and repeatedly install the quality problems that may cause, and can improve groove tank detection efficiency, be widely used in effective detection of groove tank safety.
Finally point out, above examples of implementation are only the more representational examples of the utility model.Obviously, the utility model is not limited to above-described embodiment, can also extend to a lot of aspect.All distortion that those of ordinary skill in the art directly derives from content disclosed in the utility model or associates, all should think protection domain of the present utility model.
Claims (6)
1. a groove tank safety valve non collapsible state opens stretching force detecting apparatus, it is characterized in that: described device is installed at groove tank (19) top safety valve (18) place, described device comprises connecting sleeve (11), locking nut (10), stop sleeve (3), feed screw nut (8), leading screw (7), coupling band (6), motor (5), master collet (2) and explosion-proof sleeve (1), and described device is connected with computer through open detection module, explosion-proof sleeve (1), master collet (2) and stop sleeve (3) are tightly connected successively, motor (5) to be sleeved in explosion-proof sleeve (1) and to be fixed on master collet (2) end, motor (5) is by explosion-proof sleeve (1) seal protection, the output shaft of motor (5) is stretched into master collet (2) and is coaxially installed by key (17) one end with coupling band (6) afterwards, in the other end of coupling band (6), coaxial fixed cover is equipped with feed screw nut (8), feed screw nut (8) is enclosed within leading screw (7) the inner and forms lead screw pair, thrust-bearing (9) is installed between feed screw nut (8) and stop sleeve (3), leading screw (7) outer end is screwed multidiameter shaft and extend in stop sleeve (3), leading screw (7) and stop sleeve (3) are coaxially installed, leading screw (7) outer end thread bush is on one end of pulling force sensor (10), the other end thread bush of pulling force sensor (10) is in one end of connecting sleeve (11), the other end thread bush of connecting sleeve (11) is at safety valve top, and stop sleeve (3) end face is by seal ring connection safety valve flange (13), between stop sleeve (3) inwall and valve gap (12) side face, there is gap, master collet (2) inner chamber communicates with stop sleeve (3) inner chamber, and master collet (2) sidepiece has the gas output interface of external gas outlet duct, open detection module and pulling force sensor (10) and motor (5) and open detection model calling.
2. a kind of groove tank safety valve non collapsible state according to claim 1 opens stretching force detecting apparatus, it is characterized in that: described open detection module is installed in explosion-proof electrification box, motor (5) and pulling force sensor (10) output terminal to be picked out by the approved cable joint on explosion-proof sleeve (1) through approved cable and are connected open detection module.
3. a kind of groove tank safety valve non collapsible state according to claim 1 opens stretching force detecting apparatus, it is characterized in that: described safety valve (18) comprises safety valve thrust spring (14), safety valve valve holder (15), safety valve connecting rod (29) and covers the safety valve valve gap (12) at groove tank (19) top import and export; Be fixedly connected with by safety valve connecting rod (29) between safety valve valve gap (12) and safety valve valve holder (15), safety valve valve holder (15) is positioned at groove tank (19), safety valve thrust spring (14) two ends withstand on groove tank (19) safety valve flange (13) inwall and safety valve valve holder (15) respectively, make safety valve valve gap (12) be pressed on groove tank (19) top import and export by compression thrust, the other end thread bush of described connecting sleeve (11) is at valve gap (12) top side face.
4. a kind of groove tank safety valve non collapsible state according to claim 1 opens stretching force detecting apparatus, it is characterized in that: between described explosion-proof sleeve (1) and master collet (2), all connected by end flanges between master collet (2) and stop sleeve (3), and between surface of contact, seal ring is housed, between the end face of stop sleeve (3) and safety valve flange (13), seal ring is housed.
5. a kind of groove tank safety valve non collapsible state according to claim 1 opens stretching force detecting apparatus, it is characterized in that: described leading screw (7) and connecting sleeve (11) wall are all processed as coarse external screw thread.
6. a kind of groove tank safety valve non collapsible state according to claim 1 opens stretching force detecting apparatus, it is characterized in that: described leading screw (7) and feed screw nut (8) adopt ball-screw nut and ball screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520596827.3U CN204879440U (en) | 2015-08-07 | 2015-08-07 | Tensile testing device is opened to jar relief valve non - dismantlement state in groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520596827.3U CN204879440U (en) | 2015-08-07 | 2015-08-07 | Tensile testing device is opened to jar relief valve non - dismantlement state in groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204879440U true CN204879440U (en) | 2015-12-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520596827.3U Withdrawn - After Issue CN204879440U (en) | 2015-08-07 | 2015-08-07 | Tensile testing device is opened to jar relief valve non - dismantlement state in groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204879440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065902A (en) * | 2015-08-07 | 2015-11-18 | 中国计量学院 | Detection system for opening tension of tank safety valve in non-disassembly state |
-
2015
- 2015-08-07 CN CN201520596827.3U patent/CN204879440U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065902A (en) * | 2015-08-07 | 2015-11-18 | 中国计量学院 | Detection system for opening tension of tank safety valve in non-disassembly state |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20170503 |
|
| AV01 | Patent right actively abandoned |