CN204202553U - A kind of rupture disk state monitoring apparatus - Google Patents
A kind of rupture disk state monitoring apparatus Download PDFInfo
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- CN204202553U CN204202553U CN201420613057.4U CN201420613057U CN204202553U CN 204202553 U CN204202553 U CN 204202553U CN 201420613057 U CN201420613057 U CN 201420613057U CN 204202553 U CN204202553 U CN 204202553U
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- rupture disk
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- eddy current
- monitoring apparatus
- state monitoring
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Abstract
A kind of rupture disk state monitoring apparatus is protected in the utility model request, rupture disk state monitoring apparatus, comprises the clamper of fixing rupture disk (1), setscrew nut (3), sensor stand (5), grip nut (6), eddy current displacement sensor (7); It is characterized in that: described clamper is sealed by upper clamper (4) and lower gripper (2) and connects firmly, and described eddy current displacement sensor (7) is fixed on the center of sensor stand (5) by grip nut (6).This device realizes the monitoring of rupture disk state by the detection head of eddy current displacement sensor and the distance of rupture disk.Compared to existing technology, the utility model has: the complete advantage such as state alarm, non-contact monitoring, simple installation, long service life.
Description
Technical field
The utility model relates to the technical field such as electric power, chemical industry, particularly a kind of pressure system protection against overpressure assembly---a kind of state monitoring apparatus of rupture disk.
Background technology
Blasting piece device is a kind of overpressure protection device of breaking type, is made up of rupture disk and clamper two parts.Rupture disk is at the element demarcating explosion pressure release at burst pressure and temperature, and clamper is then the auxiliary element of suitable position attaching at container and clamping rupture disk.Blasting piece device is the important safety preventing press device generation superpressure from destroying, and is widely used in the industrial sectors such as electric power, chemical industry, oil, fire-fighting, aviation.
In existing rupture disk condition monitoring technology, main employing three kinds of modes: adopt entity wire transmission of signal; Adopt pressure transducer senses change in pressure transmission of signal; Adopt magnetic induction way transmission of signal.
The mode of entity wire monitoring rupture disk state is form a chopping signal, in this, as the explosion actuating signal of rupture disk by the wire fracture pasted on rupture disk or diaphragm during rupture disk explosion.Which, owing to adopting entity wire transmission of signal, needs to draw position to wire and carries out encapsulation process, easily occur seepage, and need after wire fracture again to change, not reproducible use.
The mode of pressure sensor monitoring rupture disk state is monitored the state of rupture disk by the change of pressure transducer induction pressure internal tank pressure medium, after rupture disk explosion, the pressure of pressure vessel inside sharply declines, form a step signal, in this, as the explosion actuating signal of rupture disk.Which due to sensor run through pressure vessel wall after contact with medium, when encountering Korrosionsmedium, sensor serviceable life can be shortened, makes failure of apparatus, and embed director at sensor and the phase be in high pressure, easily occur seepage.
The mode of magnetic induction sensor monitoring rupture disk state is adopted to be monitored the state of rupture disk by the change in location of magnetic induction sensor induction magnetic patch, after rupture disk explosion, magnetic patch leaves initial position, magnetic induction sensor senses the change of magnetic patch position, send an open circuit signaling, in this, as the explosion actuating signal of rupture disk.Which is non-through pressure vessel wall because sensor embeds, there is not breakthrough, but this device is not suitable for two-phase stainless While steel grippers, because the stainless steel of bilayer has magnetic, can allow detector can not display effect, and strong magnets can be demagnetized in high temperature, strong vibration situation, reduce serviceable life.
Can see from above three kinds of rupture disk condition monitoring technology, they all can only monitor rupture disk whether this state of explosion.And rupture disk is in hyperbaric environment for a long time, though not operating lower than its burst pressure demarcated, but rupture disk produces Strain Accumulation thus and is out of shape, and its burst pressure force value is reduced, and performance reduces, and must change rupture disk in this case.Above three kinds of technology all fail the function of the monitoring realizing rupture disk deformed state, and therefore, it is necessary for developing a set of monitoring device of monitoring rupture disk explosion and deformed state.
Utility model content
The utility model, in order to address the aforementioned drawbacks, provides a kind of noncontact, simple installation, reusable rupture disk state monitoring apparatus.
The utility model solves the thinking that its technical matters takes: rupture disk state monitoring apparatus comprises clamper, setscrew nut (3), sensor stand (5), grip nut (6), the eddy current displacement sensor (7) of fixing rupture disk (1); It is characterized in that: described clamper is sealed by upper clamper (4) and lower gripper (2) and connects firmly, described eddy current displacement sensor (7) is fixed on the center of sensor stand (5) by grip nut (6), and the signal that sensor detects is by host computer or central processing unit process.
Be preferably: described eddy current displacement sensor is placed in rupture disk back pressure side, namely beyond the gas such as water, acid solution or liquid-working-medium, avoid the risk that sensor is corroded for a long time.
Be preferably: described eddy current displacement sensor carries out up-down adjustment by two grip nuts, itself and rupture disk are remained in effective measuring distance.
Be preferably: described sensor stand adopts aluminum, and have mesh at axial direction, radial direction has a sensor signal lines extraction channel, adopt the sealing of refractory seals glue.
Be preferably: electric current eddy current sensor and rupture disk keep the distance set, within this distance is set in 25mm.
Compared to existing technology, the utility model tool has the following advantages:
1. complete state alarm.Can not only provide the explosion alarm of rupture disk, and can provide the deformation alarm of rupture disk, the latter is not available for prior art.
2. non-contact monitoring.The utility model realizes the monitoring of rupture disk state by the distance of eddy current displacement sensor detecting sensor head and rupture disk.Therefore, eddy current displacement sensor can be put into rupture disk back pressure side, in operation not with medium contact, avoid pressure transducer must contact interior media and cause corrode and reveal hidden danger.
3. simple installation.Sensor module is stand-alone assembly, does not weld with blasting piece device, removes stage makeup and costume conveniently.
4. long service life.Sensor probe is not contacting with medium especially Korrosionsmedium at ordinary times, does not have the magnet this life-span to be subject to the assembly of high temperature and vibration effect, still can be able to reuse after rupture disk explosion.
Accompanying drawing explanation
Fig. 1 is application schematic diagram of the present utility model.
In figure: 1. rupture disk, 2. lower gripper, 3. setscrew nut, 4. go up clamper, 5. sensor stand, 6. grip nut, 7. eddy current displacement sensor.
Embodiment
The utility model discloses a kind of rupture disk state monitoring apparatus, described device by fixing the clamper of rupture disk (1), eddy current displacement sensor (7), sensor stand (5), setscrew nut (3) form.It is characterized in that: described clamper is sealed by upper clamper (4) and lower gripper (2) and connects firmly, and described eddy current displacement sensor (7) is fixed on the center of sensor stand (5) by grip nut (6).Described device provide a kind of contactless, install be easy to, can reusable rupture disk state monitoring apparatus, the explosion alarm signal of rupture disk can not only be provided rapidly, and the deformation data of rupture disk can be accurately provided.
The rupture disk state monitoring apparatus that Fig. 1 describes, comprise: eddy current displacement sensor (7) and m, current vortex displacement sensor/sensor is fixed on the center of support by grip nut, during normal work, sensor and rupture disk keep the distance set, this distance, in the effective range of sensor, is generally set within 25mm.When blasting piece device set pressure and temperature under action explosion time, rupture disk breaks, the rupture disk being positioned at center disappears, or there is comparatively large deformation in rupture disk, current vortex sensor can detect this abnormality in 0.001 second, thus send alarm signal, reach the object of monitoring rupture disk state.
The utility model solves prior art is difficult to carry out an accurate measurements difficult problem to rupture disk state.
Above rupture disk state monitoring apparatus provided by the utility model is described in detail, apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping; Meanwhile, for those skilled in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (5)
1. a rupture disk state monitoring apparatus, comprises the clamper of fixing rupture disk (1), setscrew nut (3), sensor stand (5), grip nut (6), eddy current displacement sensor (7); It is characterized in that: described clamper is sealed by upper clamper (4) and lower gripper (2) and connects firmly, and described eddy current displacement sensor (7) is fixed on the center of sensor stand (5) by grip nut (6).
2. rupture disk state monitoring apparatus according to claim 1, is characterized by: described eddy current displacement sensor is placed in rupture disk back pressure side.
3. rupture disk state monitoring apparatus according to claim 1, is characterized by: described eddy current displacement sensor carries out up-down adjustment by two grip nuts, and itself and rupture disk are remained in effective measuring distance.
4. rupture disk state monitoring apparatus according to claim 1, is characterized by: described sensor stand adopts aluminum, and have mesh at axial direction, radial direction has a sensor signal lines extraction channel, adopts the sealing of refractory seals glue.
5. rupture disk state monitoring apparatus according to claim 1, is characterized by: electric current eddy current sensor and rupture disk keep the distance set, within this distance is set in 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420613057.4U CN204202553U (en) | 2014-10-22 | 2014-10-22 | A kind of rupture disk state monitoring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420613057.4U CN204202553U (en) | 2014-10-22 | 2014-10-22 | A kind of rupture disk state monitoring apparatus |
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| CN204202553U true CN204202553U (en) | 2015-03-11 |
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| CN201420613057.4U Active CN204202553U (en) | 2014-10-22 | 2014-10-22 | A kind of rupture disk state monitoring apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253173A (en) * | 2018-02-26 | 2018-07-06 | 大连理工安全技术与控制工程研究中心有限公司 | A kind of automatic Prediction service life and the rupture disk safety device for replacing early warning in real time |
| CN110542530A (en) * | 2019-09-20 | 2019-12-06 | 中国工程物理研究院化工材料研究所 | Anti-knock testing device and experimental method thereof |
| CN113238023A (en) * | 2021-05-25 | 2021-08-10 | 大连度达理工安全工程有限公司 | Device for safety monitoring and early warning of positive arch rupture disk |
| CN113252981A (en) * | 2021-04-30 | 2021-08-13 | 南京林业大学 | Wireless impedance monitoring system for monitoring health state of rupture disk |
-
2014
- 2014-10-22 CN CN201420613057.4U patent/CN204202553U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253173A (en) * | 2018-02-26 | 2018-07-06 | 大连理工安全技术与控制工程研究中心有限公司 | A kind of automatic Prediction service life and the rupture disk safety device for replacing early warning in real time |
| CN110542530A (en) * | 2019-09-20 | 2019-12-06 | 中国工程物理研究院化工材料研究所 | Anti-knock testing device and experimental method thereof |
| CN113252981A (en) * | 2021-04-30 | 2021-08-13 | 南京林业大学 | Wireless impedance monitoring system for monitoring health state of rupture disk |
| CN113238023A (en) * | 2021-05-25 | 2021-08-10 | 大连度达理工安全工程有限公司 | Device for safety monitoring and early warning of positive arch rupture disk |
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