CN103808500A - High-temperature safety valve off-line checking device - Google Patents

High-temperature safety valve off-line checking device Download PDF

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Publication number
CN103808500A
CN103808500A CN201410037740.2A CN201410037740A CN103808500A CN 103808500 A CN103808500 A CN 103808500A CN 201410037740 A CN201410037740 A CN 201410037740A CN 103808500 A CN103808500 A CN 103808500A
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CN
China
Prior art keywords
safety valve
temperature
electromagnetic induction
checking
spring
Prior art date
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.)
Pending
Application number
CN201410037740.2A
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Chinese (zh)
Inventor
蔡瑜亮
蔡琼珂
宋泽宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGZHOU YONGYUE ELECTROMECHANICAL ENGINEERING Co Ltd
Original Assignee
GUANGZHOU YONGYUE ELECTROMECHANICAL ENGINEERING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GUANGZHOU YONGYUE ELECTROMECHANICAL ENGINEERING Co Ltd filed Critical GUANGZHOU YONGYUE ELECTROMECHANICAL ENGINEERING Co Ltd
Priority to CN201410037740.2A priority Critical patent/CN103808500A/en
Publication of CN103808500A publication Critical patent/CN103808500A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a high-temperature safety valve off-line checking device which comprises a bottom flange, a gas inlet, a valve spool and a gas outlet, wherein the bottom flange is connected with a checking table, the gas inlet is formed in the bottom of a safety valve, and the valve spool is communicated with the gas inlet. At least two electromagnetic induction coils are arranged on a shell of the safety valve, at least two temperature sensors are arranged on a spring of the safety valve, and at least two electromagnetic induction heaters are arranged between the shell and the spring and correspond to the temperature sensors respectively. The high-temperature safety valve off-line checking device checks the safety valve under an off-line condition, is safe to operate, comfortable in working environment, low in workload and high in checking efficiency, checking is performed at simulated high temperature, and checking data are stable and accurate.

Description

High-temperature safety valve off-line calibration equipment
Technical field
The invention belongs to valve detection apparatus field, more specifically, the present invention relates to a kind of high-temperature safety valve off-line calibration equipment.
Background technology
At present, the verification of Generally Recognized as safe valve can be undertaken by following four kinds of methods:
The first is the verification of checking table off-line, is that safety valve is arranged on checking table, then uses verification medium that safety valve is opened, and confirms opening pressure by observing tensimeter.This method is verification safety valve at normal temperatures, and when the safety valve of verification moves under high temperature or cryogenic media like this, the take-off value of safety valve is because temperature difference has larger deviation;
The second is the real jumping method of boost type, is that safety valve is installed in system, and system people is for boosting, until safety valve jumping up, thereby observes the opening pressure of safety valve.This method of calibration is larger to the sealing face damage of safety valve, and inefficiency consumes a large amount of media, and operational danger is large.And can not detect the sealing property of safety valve;
The third is on-line instrument verification, be by external force by the spring pull-up on safety valve, measure the numerical value of pull-up acting force by power sensor, calculate the opening pressure of safety valve with this.This method does not generally affect production, system pressure need not change, and detection speed is than very fast, but the method operates at the scene, danger is larger, is subject to such environmental effects, to the safety valve of the equipment just having come into operation, because its spring temperature is not yet stable, measurement result has deviation.And can not detect the sealing property of safety valve;
The 4th kind is the verification of high temperature checking table off-line, is that the high temperature and high pressure steam that utilizes boiler to produce is opened safety valve, thus the object of the verification that reaches a high temperature.High temperature, high-pressure boiler that this method is used, invest huge, cost is high, inefficiency, dangerous large.
Summary of the invention
Based on this, in order to overcome the defect of above-mentioned prior art, the invention provides a kind of off-line calibration equipment of high-temperature safety valve.
In order to realize foregoing invention object, the present invention has taked following technical scheme:
A kind of high-temperature safety valve off-line calibration equipment, comprise: the flange in the bottom being connected with checking table, the gas access that is arranged at safety valve bottom, spool and the gas vent being communicated with gas access are provided with at least two electromagnetic induction coils on the shell of safety valve; On the spring of safety valve, be provided with at least two temperature sensors, correspond respectively to described electromagnetic induction coil; Between shell and spring, be provided with at least two electromagnetic induction heaters, correspond respectively to the temperature sensor on spring.
In some embodiment, described temperature sensor corresponds respectively to the spring upper-lower position of safety valve therein, can make like this result that obtains more accurate.
In some embodiment, be provided with electromagnetic induction coil in the upper and lower of described shell therein, thereby make safety valve spring entirety be subject to thermal balance.
Therein in some embodiment, the quantity of described electromagnetic induction coil, electromagnetic induction heater and temperature sensor is identical, make spring entirety be subject to thermal balance, can obtain like this hot environment more approaching with actual state, make the opening pressure value of verification and airtight results of property more accurate.
In some embodiment, along with safety valve size strengthens, described electromagnetic induction coil, electromagnetic induction heater and temperature sensor quantity can correspondingly increase to 3 or 4 therein.
Compared with prior art, the present invention has following beneficial effect:
1, high-temperature safety valve off-line calibration equipment of the present invention verification safety valve under off-line situation, handling safety, comfortable working environment;
2, high-temperature safety valve off-line calibration equipment workload of the present invention is little, and verification efficiency is high;
3, verification under high-temperature safety valve off-line calibration equipment simulation high temperature of the present invention, checking data is stable, accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of high-temperature safety valve off-line calibration equipment in the embodiment of the present invention 1;
Reference numeral: 1, electromagnetic induction coil; 2, temperature sensor; 3, electromagnetic induction coil; 4, temperature sensor; 5, electromagnetic induction heater; 6, electromagnetic induction heater; 7, spring; 8, shell; 9, spool; 10, gas vent; 11, flange in the bottom; 12, gas access.
Embodiment
Describe the present invention in detail below in conjunction with the drawings and specific embodiments.
Embodiment 1 high-temperature safety valve off-line calibration equipment
As shown in Figure 1, be the structural drawing of high-temperature safety valve off-line calibration equipment of the present invention.High-temperature safety valve off-line calibration equipment of the present invention comprises the safety valve flange in the bottom 11 being connected with flange or the clamp device of checking table, the gas access 12 that is arranged at safety valve bottom, spool 9 and the gas vent 10 being communicated with gas access 12, on the shell 8 of safety valve, be provided with two electromagnetic induction coils 1,3, be arranged at respectively the above and below of shell 8; On the spring 7 of safety valve, be provided with two temperature sensors 2,4, be arranged at respectively the upper and lower position of spring 7; Position between shell and spring is provided with two electromagnetic induction heaters 5,6, corresponds respectively to two temperature sensors 2,4 on spring 7.
In order to simulate the unlatching situation of the safety valve under high temperature, before verification starts, energising first makes two electromagnetic induction coils, 1,3 exchange current of the shell 8 of safety valve produce magnetic field, be subject to electromagnetic induction and produce eddy-current heating, heat (self structure of the size of the temperature value t of upper and lower position pressure during with work on the spot, environment around and safety valve is relevant, and these data can read in safety valve working site) by the upper and lower position of 5,6 pairs of safety valve springs 7 of electromagnetic induction heater again.Obtain the real-time temperature of spring 7 by being arranged at two temperature sensors 2,4 of upper-lower position of safety valve spring 7.In the time being heated to design temperature t, electromagnetic induction heater 5,6 stops heating and keeping constant temperature automatically.Now, by " safety valve normal temperature off-line checking procedure ", safety valve is carried out to verification and (pressure gas is passed into the gas access 12 of safety valve, pressure slowly raises, in the time that pressure reaches opening pressure of safety valve, the spool 9 of safety valve is opened, gas is discharged by gas vent 10), just can obtain this safety valve opening pressure value at high temperature.
Similarly, now carry out air-tight test by " safety valve normal temperature air-tight test step ", can obtain this safety valve experiments of sealing performance result at high temperature.
Larger at safety valve bore, in highly higher embodiment, can increase the quantity (as be increased to 4,6 etc.) of electromagnetic induction coil 1,3 (as be increased to 4,6 etc.) and temperature sensor 2,4, correspondingly the quantity of automatic electromagnetic induction heater 5,6 also increases (as be increased to 4,6 etc.) thereupon again, can obtain like this hot environment more approaching with actual state, make the opening pressure value of verification and airtight results of property more accurate.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (5)

1. a high-temperature safety valve off-line calibration equipment, comprise: the flange in the bottom being connected with checking table, the gas access that is arranged at safety valve bottom, spool and the gas vent being communicated with gas access, it is characterized in that, on the shell of safety valve, be provided with at least two electromagnetic induction coils; On the spring of safety valve, be provided with at least two temperature sensors; Between shell and spring, be provided with at least two electromagnetic induction heaters, correspond respectively to described temperature sensor.
2. high-temperature safety valve off-line calibration equipment according to claim 1, is characterized in that, described temperature sensor corresponds respectively to the spring upper-lower position of described safety valve.
3. high-temperature safety valve off-line calibration equipment according to claim 1, is characterized in that, is provided with electromagnetic induction coil in the upper and lower of described shell.
4. according to the high-temperature safety valve off-line calibration equipment described in claim 1-3 any one, it is characterized in that, the quantity of described electromagnetic induction coil, electromagnetic induction heater and temperature sensor is identical.
5. high-temperature safety valve off-line calibration equipment according to claim 4, is characterized in that, described electromagnetic induction coil, electromagnetic induction heater and temperature sensor are 3 or 4.
CN201410037740.2A 2014-01-24 2014-01-24 High-temperature safety valve off-line checking device Pending CN103808500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410037740.2A CN103808500A (en) 2014-01-24 2014-01-24 High-temperature safety valve off-line checking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410037740.2A CN103808500A (en) 2014-01-24 2014-01-24 High-temperature safety valve off-line checking device

Publications (1)

Publication Number Publication Date
CN103808500A true CN103808500A (en) 2014-05-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410037740.2A Pending CN103808500A (en) 2014-01-24 2014-01-24 High-temperature safety valve off-line checking device

Country Status (1)

Country Link
CN (1) CN103808500A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108344911A (en) * 2018-02-09 2018-07-31 天津英创汇智汽车技术有限公司 Spool test device
CN108426682A (en) * 2018-03-16 2018-08-21 天津英创汇智汽车技术有限公司 The airtight measuring device of inlet valve and its measurement method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2773513Y (en) * 2005-02-06 2006-04-19 董陆长 Household electromagnetic induction heating center device
CN201000397Y (en) * 2006-10-31 2008-01-02 王春年 High-temperature steam and normal temperature gas and water three-phase medium safety valve calibration stand
KR100796527B1 (en) * 2007-05-31 2008-01-21 박희성 Operational structure of safety valve
CN201229244Y (en) * 2008-08-06 2009-04-29 鞍山市特种设备检验研究所 External heating type thermal state calibration stand for safety valve
CN101949771A (en) * 2010-08-25 2011-01-19 中国石油大学(北京) Performance tester for gel valve in the course of underbalance well drilling and well completion and application thereof
CN201724832U (en) * 2010-07-09 2011-01-26 攀钢集团钢铁钒钛股份有限公司 Offline-calibration device of steam safety valve
KR101224192B1 (en) * 2012-04-06 2013-01-21 유종훈 High temperature high pressure valve test device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2773513Y (en) * 2005-02-06 2006-04-19 董陆长 Household electromagnetic induction heating center device
CN201000397Y (en) * 2006-10-31 2008-01-02 王春年 High-temperature steam and normal temperature gas and water three-phase medium safety valve calibration stand
KR100796527B1 (en) * 2007-05-31 2008-01-21 박희성 Operational structure of safety valve
CN201229244Y (en) * 2008-08-06 2009-04-29 鞍山市特种设备检验研究所 External heating type thermal state calibration stand for safety valve
CN201724832U (en) * 2010-07-09 2011-01-26 攀钢集团钢铁钒钛股份有限公司 Offline-calibration device of steam safety valve
CN101949771A (en) * 2010-08-25 2011-01-19 中国石油大学(北京) Performance tester for gel valve in the course of underbalance well drilling and well completion and application thereof
KR101224192B1 (en) * 2012-04-06 2013-01-21 유종훈 High temperature high pressure valve test device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108344911A (en) * 2018-02-09 2018-07-31 天津英创汇智汽车技术有限公司 Spool test device
CN108344911B (en) * 2018-02-09 2020-10-27 天津英创汇智汽车技术有限公司 Valve core testing device
CN108426682A (en) * 2018-03-16 2018-08-21 天津英创汇智汽车技术有限公司 The airtight measuring device of inlet valve and its measurement method

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Addressee: GUANGZHOU YONGYUE ELECTROMECHANICAL ENGINEERING CO., LTD.

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Application publication date: 20140521

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