CN202974549U - Online pressure detection device - Google Patents
Online pressure detection device Download PDFInfo
- Publication number
- CN202974549U CN202974549U CN 201220625120 CN201220625120U CN202974549U CN 202974549 U CN202974549 U CN 202974549U CN 201220625120 CN201220625120 CN 201220625120 CN 201220625120 U CN201220625120 U CN 201220625120U CN 202974549 U CN202974549 U CN 202974549U
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- China
- Prior art keywords
- orifice plate
- housing
- pressure transducer
- spool
- valve
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- 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 - Lifetime
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- 238000001514 detection method Methods 0.000 title abstract description 17
- 238000002955 isolation Methods 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 14
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000012795 verification Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an online pressure detection device. The online pressure detection device is characterized in that the online pressure detection device comprises an isolation on-off valve (20); and the upper end of the isolation on-off valve (20) is movably connected with a pressure sensor (17). The online pressure detection device of the utility model is advantageous in convenient assembly, disassembly and usage, avoidance of proneness to leakage of a large quantity of oil or gas, safety and environmental protection.
Description
Technical field
The utility model relates to a kind of pick-up unit, particularly a kind of online pressure-detecting device that is applied to fluid.
Background technology
In general fluid system, particularly in test macro, hydrodynamic pressure is a very important parameter, for this reason, usually need configure the instrument and meter of some detected pressures, such as tensimeter or pressure transducer.In General System, some parameters need to detect for a long time, and some parameters only need be carried out temporary detecting.For temporary detecting, usually after detection, just the detecting instrument instrument is pulled down, and be there is no need to be installed on for a long time system, cause damaging because of long-term work of instrument and meter; For the parameter that need detect for a long time, whether instrument and meter needs instrument and meter itself is proofreaied and correct after using certain hour usually, and coherent detection, accurate to judge this instrument and meter.For this reason, for above-mentioned situation, every detection once or verification once, just need after equipment is out of service, this instrument and meter to be disassembled from system, be very trouble, and easily cause the leakage of fluid or gas, cause safety and pollute.
The utility model content
The purpose of this utility model is, a kind of online pressure detection method and device thereof are provided.The utility model is detected pressures online, and dismounting and easy to use is difficult for causing the leakage of a large amount of fluid or gas, safety and environmental protection.
The technical solution of the utility model: a kind of online pressure-detecting device, comprise the isolation on-off valve, isolation on-off valve upper end is through being connected with pressure transducer.
In aforesaid online pressure-detecting device, described isolation on-off valve comprises housing, be provided with successively the outside access hole, spring placement hole and the housing through flow hole that communicate in housing from top to bottom, outside access is provided with orifice plate and pressure transducer in the hole, pressure transducer is arranged on above orifice plate, is provided with the orifice plate endoporus in the middle part of orifice plate, is provided with the spool of upper end band notch in the orifice plate endoporus, be provided with the spool through flow hole in spool, the spool lower end is connected with the spring that is arranged in the spring placement hole.
In aforesaid online pressure-detecting device, described outside access is provided with internal thread in the hole, and the external thread of described orifice plate and pressure transducer is arranged on outside the access in the hole through internal thread.
In aforesaid online pressure-detecting device, be provided with the pore plate by sealing groove between described orifice plate and bottom, outside access hole, be provided with the pore plate by sealing circle in the pore plate by sealing groove.
In aforesaid online pressure-detecting device, be provided with the sensor O-ring seal between described pressure transducer and isolation on-off valve.
In aforesaid online pressure-detecting device, described housing lower end is provided with for the housing external thread that connects fluid line.
Compared with prior art, the utility model by the isolation on-off valve the mode that adopt to be flexibly connected of upper end one pressure transducer is installed, make cut-offfing of spool by the upper-lower position that changes pressure transducer again, thereby can realize Real-Time Monitoring and periodic monitor, thereby adapt to the job requirement of temporary detecting and long term monitoring, if temporary detecting, twist off after using and get final product, can reuse detection, easy to use, also reduced use cost; If long term monitoring can conveniently be carried out dismounting and be safeguarded, increase the service life, reduce use cost; The utility model can also be isolated again and is screwed into standard pressure transducer on on-off valve and can realizes that the relevant pressure detecting instrument instrument in system compares verification, forms the verification of online instrument and meter, and is easy to use, improves accuracy of detection.The utility model has been realized online detection by the isolation on-off valve, has obviously improved work efficiency, and has avoided repeatedly loading and unloading the oil leakage phenomenon that plug may cause.
Description of drawings
Fig. 1 is opening structural drawing of the present utility model;
Fig. 2 is closed condition structural drawing of the present utility model;
Fig. 3 is the structural representation of orifice plate;
Fig. 4 is the structural representation of housing;
Fig. 5 is the structural representation of spool.
Being labeled as in accompanying drawing: 1-housing seal circle, 2-spring, 3-pore plate by sealing circle, 4-housing, the outside access of 5-hole, 6-mesopore, 7-orifice plate, 8-spool through flow hole, the 9-spool, 10-spring placement hole, 11-housing through flow hole, the 12-internal thread, 13-housing external thread, 14-notch, 15-orifice plate endoporus, 16-sensor O-ring seal, 17-pressure transducer, 18-pore plate by sealing groove, 19-housing seal groove, 20-isolates on-off valve.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described, but not as the foundation to the utility model restriction.
Embodiment.A kind of online pressure-detecting device consists of as shown in Fig. 1-5, comprises isolation on-off valve 20, and isolation on-off valve 20 upper ends are through being connected with pressure transducer 17.
Described isolation on-off valve 20 comprises housing 4, be provided with successively the outside access hole 5, spring placement hole 10 and the housing through flow hole 11 that communicate in housing 4 from top to bottom, outside access is provided with orifice plate 7 and pressure transducer 17 in hole 5, pressure transducer 17 is arranged on orifice plate 7 tops, orifice plate 7 middle parts are provided with orifice plate endoporus 15, be provided with the spool 9 of upper end band notch 14 in orifice plate endoporus 15, be provided with spool through flow hole 8 in spool 9, spool 9 lower ends are connected with the spring 2 that is arranged in spring placement hole 10.
Described outside access is provided with internal thread 12 in hole 5, and the external thread of described orifice plate 7 and pressure transducer 17 is equipped with through internal thread 12 and externally accesses in hole 5.
Be provided with pore plate by sealing groove 18 between described orifice plate and bottom, outside access hole, be provided with pore plate by sealing circle 3 in pore plate by sealing groove 18.
Be provided with sensor O-ring seal 16 between described pressure transducer and isolation on-off valve.
Described housing 4 lower ends are provided with for the housing external thread 13 that connects fluid line.
A kind of online pressure detection method adopts movable connection method to be inserted on the isolation on-off valve pressure transducer, realizes the disconnected of isolation on-off valve or opens by the position that changes pressure transducer, thereby realizing the online detection of pressure transducer convection cell.The movable connection method of described pressure transducer and isolation on-off valve is that pressure transducer is threaded connection and isolates on-off valve and be connected.Described is that pressure transducer is unscrewed by changing the method for position realization to isolating the disconnected of on-off valve or opening of pressure transducer, makes the spool return under the effect of spring in the isolation on-off valve, and the disconnection of on-off valve is isolated in realization; Pressure transducer is tightened, the spool in the isolation on-off valve is return under the effect of pressure transducer, realize opening of isolation on-off valve.Described pressure transducer adopts the sensor O-ring seal to seal with the junction of isolation on-off valve.
Described pressure transducer 17 is the electric detecting element of standard configuration, can flow to Displaying Meter by the conversion of corresponding electric current or voltage signal, realizes the detection of pressure.The spring 2 of packing in the housing 4 of isolation on-off valve 20, the upper end of spring 2 spool 9 of packing into, the orifice plate 7 of packing at last.Housing 4 inside are comprised of three sections ducts on same axis, and the stage casing is spring placement hole 10, and leading portion is less housing through flow hole 11, and afterbody is larger access hole 5, outside, is processed with internal thread 12, its size and orifice plate external thread coupling; The outside of housing 4, leading portion are processed with housing external thread 13, are used for and being connected of system fluid pipeline; Square face is processed at the rear portion, is convenient to fix with spanner; Side, middle part (being the end face between housing external thread 13 and square face) is processed with housing seal groove 19, its size and housing seal circle 1 coupling.The outer ring size of spring 2 and housing 4 middle part spring placement holes 10 are complementary, and inner ring size and the anterior backstay of spool 9 are complementary.Spool 9 is divided into four sections: leading portion is that spool heads into the bar part, and its diameter and orifice plate 7 endoporus are complementary, and flow into external pipe and instrument and equipment for ease of fluid, and the tail end that spool heads into the bar part is processed with corresponding notch 14; Second segment is the valve core cone hermetic unit, mesopore 6 couplings of itself and orifice plate 7; The 3rd section is the spool targeting part, and spring placement hole 10 couplings of its size and housing 4 are processed with spool through flow hole 8 some on cylindrical; Back segment is that valve core spring is located part, its size and spring 2 inner ring sizes couplings.Orifice plate 7 Excircle machining abacus external threads and orifice plate endoporus 15, one side is processed with pore plate by sealing groove 18, orifice plate external thread size and housing internal thread 12 couplings, the cone hermetic unit coupling of orifice plate endoporus 15 sizes and spool 9, pore plate by sealing groove 18 sizes and pore plate by sealing circle 3 couplings.
During described invention assembling, the spring 2 of first packing in housing 4, then spool 9 springs location parts are inserted the inner ring of spring 2, the orifice plate 7 that O-ring seal 3 will be housed at last is screwed into by the internal thread 12 of housing, until O-ring seal 3 is compressed.During being connected of housing external thread 13 and system fluid pipeline, seal with O-ring seal 1 therebetween.Again pressure transducer 17 is screwed in the shell internal thread 12 of isolation on-off valve 20, and seals by reaching sensor O-ring seal 16.O-ring seal plays the effect that prevents fluid leakage.
When pressure transducer 17 was screwed into the access hole 5, outside of housing 4, external force forced in the bar that heads into of spool 9.When external force enough overcomes the spring force of spring 2, spring 2 is compressed, spool 9 is return thereupon, fluid is just from housing through flow hole 11, flow into the outside hole 5 of accessing through the mesopore 6 that forms between spring placement hole 10, spool through flow hole 8, spool 9 and orifice plate endoporus 15, contact with pressure transducer 17, when pressure transducer 17 is in running order, can carry out the detection of corresponding fluids pressure.
when pressure transducer 17 is not screwed into, or when not tightening, the bounce of the spring 2 in the spring placement hole 10 of the housing 4 of described invention promotes spool 9, spool 9 is under spring force and fluid pressure action, its conical surface partly compresses orifice plate 7, realize the sealing of the conical surface and the orifice plate endoporus 15 of spool 9, fluid can not flow into the outside hole 5 of accessing through spring placement hole 10 from housing through flow hole 11, realize the isolation features of isolation on-off valve 20, fluid is because contacting with pressure transducer 17, when pressure transducer 17 is in off working state, can play the protection pressure transducer, the effect that extends its serviceable life.
In working order, as unscrew external pressure transducer 17, spool 4 is return under the effect of spring force, and pressure transducer 17 enters off working state.In pressure transducer 17 is screwed into or unscrews process, a small amount of fluid of retaining in the access hole 5, outside on housing 4 may leak, can not cause a large amount of fluid to flow out, safe ready.
In off working state, external pressure transducer 17 is detachable, and isolation on-off valve 20 only plays the plug effect in the system fluid pipeline.When as required, be screwed into pressure transducer 17 temporarily, can realize the online detection of the relevant pressure in system.
When as required, when the instrument and meter of this device and relevant pressure check point uses simultaneously, as be screwed into standard pressure transducer 17, can realize that the relevant pressure detecting instrument instrument in system compares verification, form the verification of online instrument and meter.
Claims (6)
1. online pressure-detecting device is characterized in that: comprise isolation on-off valve (20), isolation on-off valve (20) upper end is through being connected with pressure transducer (17).
2. online pressure-detecting device according to claim 1, it is characterized in that: described isolation on-off valve (20) comprises housing (4), be provided with successively the access hole (5), outside that communicates in housing (4) from top to bottom, spring placement hole (10) and housing through flow hole (11), be provided with orifice plate (7) and pressure transducer (17) in outside access hole (5), pressure transducer (17) is arranged on above orifice plate (7), orifice plate (7) middle part is provided with orifice plate endoporus (15), be provided with the spool (9) of upper end band notch (14) in orifice plate endoporus (15), be provided with spool through flow hole (8) in spool (9), spool (9) lower end is connected with the spring (2) that is arranged in spring placement hole (10).
3. online pressure-detecting device according to claim 2, it is characterized in that: be provided with internal thread (12) in described outside access hole (5), the external thread of described orifice plate (7) and pressure transducer (17) is equipped with through internal thread (12) and externally accesses in hole (5).
4. online pressure-detecting device according to claim 3, is characterized in that: be provided with pore plate by sealing groove (18) between described orifice plate and bottom, outside access hole, be provided with pore plate by sealing circle (3) in pore plate by sealing groove (18).
5. online pressure-detecting device according to claim 1, is characterized in that: be provided with sensor O-ring seal (16) between described pressure transducer and isolation on-off valve.
6. according to claim 2-5 described online pressure-detecting devices of arbitrary claim is characterized in that: described housing (4) lower end is provided with for the housing external thread (13) that connects fluid line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625120 CN202974549U (en) | 2012-11-22 | 2012-11-22 | Online pressure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625120 CN202974549U (en) | 2012-11-22 | 2012-11-22 | Online pressure detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974549U true CN202974549U (en) | 2013-06-05 |
Family
ID=48515608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220625120 Expired - Lifetime CN202974549U (en) | 2012-11-22 | 2012-11-22 | Online pressure detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202974549U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980718A (en) * | 2012-11-22 | 2013-03-20 | 中航力源液压股份有限公司 | On-line pressure detecting method and device thereof |
| CN105043650A (en) * | 2014-12-23 | 2015-11-11 | 李振安 | Assembly joint for pressure sensor detachable under pressure |
| CN105697456A (en) * | 2014-11-27 | 2016-06-22 | 无锡市海骏液压机电设备有限公司 | Adjustment type hydraulic cylinder pressure measurement device |
| CN111991062A (en) * | 2020-09-03 | 2020-11-27 | 重庆大学附属肿瘤医院 | Nerve blocking needle with resistance feedback |
-
2012
- 2012-11-22 CN CN 201220625120 patent/CN202974549U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980718A (en) * | 2012-11-22 | 2013-03-20 | 中航力源液压股份有限公司 | On-line pressure detecting method and device thereof |
| CN102980718B (en) * | 2012-11-22 | 2015-04-01 | 中航力源液压股份有限公司 | On-line pressure detecting method and device thereof |
| CN105697456A (en) * | 2014-11-27 | 2016-06-22 | 无锡市海骏液压机电设备有限公司 | Adjustment type hydraulic cylinder pressure measurement device |
| CN105043650A (en) * | 2014-12-23 | 2015-11-11 | 李振安 | Assembly joint for pressure sensor detachable under pressure |
| CN111991062A (en) * | 2020-09-03 | 2020-11-27 | 重庆大学附属肿瘤医院 | Nerve blocking needle with resistance feedback |
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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: 20130605 Effective date of abandoning: 20150401 |
|
| RGAV | Abandon patent right to avoid regrant |