CN109737905A - A kind of safety valve spool displacement monitoring system of large pressurized vessel - Google Patents
A kind of safety valve spool displacement monitoring system of large pressurized vessel Download PDFInfo
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- CN109737905A CN109737905A CN201811589621.2A CN201811589621A CN109737905A CN 109737905 A CN109737905 A CN 109737905A CN 201811589621 A CN201811589621 A CN 201811589621A CN 109737905 A CN109737905 A CN 109737905A
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- valve
- spool
- computer
- telescopic rod
- valve rod
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Abstract
The embodiment of the present invention provides a kind of safety valve spool displacement monitoring system of large pressurized vessel, comprising: spool；The valve rod being connect with spool；Telescopic rod, one end are connect with valve rod, and the other end is connect with valve wall；MEMS obliquity sensor, is mounted on telescopic rod；Computer is mounted on valve wall, and is connect with MEMS obliquity sensor；When valve rod rises or falls, MEMS obliquity sensor detects the inclination angle between telescopic rod and horizontal plane, and computer calculates the vertical displacement of valve rod according to obliquity information, to obtain the displacement information of spool.MEMS device of the system due to using low cost, thus engineering practice with higher and practical value.
Description
Technical field
The present embodiments relate to safety valve technical field more particularly to a kind of safe valve core positions of large pressurized vessel
Move monitoring system.
Background technique
Safety valve is the component for opening closure, and normally off is under by external force.Medium in equipment or pipeline
Pressure rise be more than specified value when, by outside system discharge medium reach release purpose, to guarantee system not because of pressure mistake
It is high and accident occurs.Safety valve is mainly used for boiler, on pressure vessels and pipes, and control internal pressure is no more than specified value, right
Personal safety and equipment have run important protective effect.
The safety valve (also known as breather valve) of large pressurized vessel is most important, if safety valve cannot be opened and closed normally, will make
It explodes or leaks at pressure vessel.Safety valve is usually air-tight state, is not easy to judge whether its spool acts from the external world, Yi Jidong
The amplitude of work.If spool switching motion and displacement can be calculated using displacement sensor spool relative displacement.But it is conventional
Displacement sensor in such application environment using there are certain limitation, such as stay wire displacement sensor is vulnerable to greasy dirt dirt
Interference in air flow when rushing down pressure vulnerable to pressure vessel of dye, ultrasonic distance measurement mode, current vortex sensor need to be according to mechanical parts in valve body
It is specific to calculate and unit price is higher, mangneto displacement sensor is suitable for oil pollution environment, but there are certain range hole, and unit price compared with
It is high.Therefore, a kind of can calculate is needed substantially to be displaced in engineering, and easy to install, inexpensive, oil rub resistance, corrosion resistant on-line monitoring
System.
The prior art (application number CN201410391984.0) discloses a kind of safety valve precise displacement sensor, the displacement
Sensor includes inductive switching stick, position detecting circuit and shaping circuit, and inductive switching stick is mounted on rear side of spool, and and position
Detection circuit electrical connection, position detecting circuit are electrically connected with shaping circuit, and the shaping circuit is simple two-way signal output.Due to
The technical solution generates displacement signal by magnetic field induction principle, detects to spool position, thus in strong electromagnetic radiation area
Domain poor anti jamming capability can not be measured accurately.
Summary of the invention
In view of the problems of the existing technology, the embodiment of the present invention provides a kind of safe valve core position of large pressurized vessel
Move monitoring system.
The embodiment of the present invention provides a kind of safety valve spool displacement monitoring system of large pressurized vessel, which is characterized in that
Include:
Spool；
The valve rod being connect with the spool；
Telescopic rod, one end are connect with the valve rod, and the other end is connect with valve wall；
MEMS obliquity sensor is mounted on the telescopic rod；
Computer is mounted on the valve wall, and is connect with the MEMS obliquity sensor；
When valve rod rises or falls, the MEMS obliquity sensor detect the telescopic rod and horizontal plane it
Between inclination angle, the computer calculates the vertical displacement of the valve rod according to obliquity information, to obtain the position of the spool
Move information.
Further, the displacement information of spool is sent to outside valve body by the computer by wired mode.
Further, the vertical displacement of the valve rod and the relationship at the inclination angle are as follows:
Horizontal distance × tan (inclination angle) of vertical displacement=valve rod and valve wall.
Further, the wired mode is to form through-hole on the valve wall, will be described via the through-hole using conducting wire
Computer is connected to outside, and the computer transmits information to outside by the conducting wire, and external by the conducting wire
To the computer power supply.
Further, the conducting wire is multiply compound wire.
Further, the telescopic rod is left and right symmetrically arranged in the valve rod, and the micro-electro-mechanical systems are installed on each telescopic rod
System obliquity sensor, forms the MEMS obliquity sensor and is symmetrically arranged in the valve rod.
Further, the telescopic rod is connect by articulated manner with the valve rod and the valve wall.
Further, the length and installation site of the telescopic rod can according to valve diameter, spool stroke and mounting condition into
Row adjustment.
Further, the measurement accuracy of the MEMS obliquity sensor is up to 0.1 degree, the vertical displacement of the valve rod
Measurement accuracy can reach 1 millimeter.
Further, low-power-consumption embedded computer can be used in the computer.
The safety valve spool displacement of large pressurized vessel provided in an embodiment of the present invention monitors system, using telescopic rod by valve
Bar up and down motion is converted to telescopic rod change of pitch angle, detects inclination angle using MEMS (MEMS) obliquity sensor and is sent to
In the computer installed in valve, computer calculates displacement of valve rod in real time, judges whether safety valve opens and closes accordingly.It is low due to using
The MEMS device of cost, thus the monitoring system engineering practice with higher and practical value.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, embodiment will be described below
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is some realities of the invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that the safety valve spool displacement of large pressurized vessel of the present invention monitors the structure chart of system.
1- spool, 2- valve rod, 3- valve wall, 4- telescopic rod, 5-MEMS obliquity sensor, 6- computer
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 shows the safety valve spool displacement monitoring system of large pressurized vessel provided in an embodiment of the present invention.
As shown in Figure 1, the monitoring system includes that spool 1, valve rod 2, valve wall 3, telescopic rod 4, MEMS (MEMS) incline
Angle transducer 5, computer 6.Valve rod 2 is located at the top of spool 1, vertical with spool 1 to connect, i.e. valve rod 2 and horizontal plane.It stretches
4 one end of contracting bar is installed on valve rod 2, and one end is installed on valve wall 3, and MEMS obliquity sensor 5 is fixed on telescopic rod 4.It calculates
Machine 6 is mounted on 3 inside of valve wall, is connect by route with MEMS obliquity sensor 5.Inclination angle is formed between telescopic rod 4 and horizontal plane
θ。
When valve rod 2 rises or falls, MEMS obliquity sensor 5 detects inclination angle theta, and computer 6 is counted in real time according to inclination angle theta
The vertical displacement for calculating valve rod 2, to obtain the displacement information of spool 1.
The safety valve spool displacement of large pressurized vessel provided in an embodiment of the present invention monitors system, using telescopic rod by valve
Bar up and down motion is converted to telescopic rod change of pitch angle, calculates the displacement information of spool in real time, and due to using low cost
MEMS device, thus system engineering practice with higher and practical value.
As shown in Figure 1, the horizontal distance between valve rod 2 and valve wall 3 is fixed value, formed between telescopic rod 4 and horizontal plane
There is fixed triangle relation in inclination angle theta, the vertical displacement of valve rod 2 and inclination angle theta, it may be assumed that the level of vertical displacement=valve rod and valve wall
Distance × tan θ.
When valve rod 2 rises, telescopic rod 4 is stretched, and inclination angle theta becomes larger, and MEMS obliquity sensor 5 detects inclination angle theta, computer
6 calculate the climb of valve rod 2 according to above-mentioned relation formula, to obtain the rising displacement information of spool 1.
When valve rod 2 declines, telescopic rod 4 shortens, and inclination angle theta becomes smaller, and MEMS obliquity sensor 5 detects inclination angle theta, computer
6 calculate the dropping distance of valve rod 2 according to above-mentioned relation formula, to obtain the decline displacement information of spool 1.
, can be by wired mode by the displacement information of spool 1 in the embodiment of the present invention, and the safety valve obtained accordingly
Switching motion information is sent to outside valve body.Wired mode is: drilling to valve wall 3, using multiply compound wire by computer 6
It is connected to outside, the switching motion information of the displacement information of spool 1 and safety valve is sent to outside by conducting wire by computer 6.
Meanwhile outside is powered by the multiply compound wire to computer 6, solves the problems, such as information transmission and power supply.
As shown in Figure 1, telescopic rod 4 can be mounted on valve rod 2 by articulated manner one end, the other end is mounted on valve wall 3.
Also, telescopic rod 4 can be left and right symmetrically arranged in valve rod 2, and MEMS obliquity sensor 5 is mounted on each telescopic rod 4, be formed
MEMS obliquity sensor 5 is symmetrically distributed in valve rod 2, to further increase the anti-interference ability in detection process.
In the embodiment of the present invention, the length and installation site of telescopic rod 4 can be according to valve diameter, spool stroke and mounting bars
Part is adjusted.The measurement accuracy of MEMS obliquity sensor 5, by adjusting the total length of telescopic rod 4, can will be measured up to 0.1 degree
Degree is scheduled on 0-45 degree range, and the measurement accuracy of 2 vertical displacement of valve rod can reach 1 millimeter.
In the embodiment of the present invention, low-power-consumption embedded computer is can be used in computer 6.
Safety valve spool displacement provided in an embodiment of the present invention monitors system, and valve rod is moved up and down using telescopic rod and is converted
For telescopic rod change of pitch angle, inclination angle is detected using MEMS obliquity sensor and is sent in the computer installed in valve, computer
Displacement of valve rod is calculated in real time, judges whether safety valve opens and closes accordingly.Due to using the MEMS device of low cost, thus the monitoring
System engineering practice with higher and practical value.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of safety valve spool displacement of large pressurized vessel monitors system characterized by comprising
Spool；
The valve rod being connect with the spool；
Telescopic rod, one end are connect with the valve rod, and the other end is connect with valve wall；
MEMS obliquity sensor is mounted on the telescopic rod；
Computer is mounted on the valve wall, and is connect with the MEMS obliquity sensor；
When valve rod rises or falls, the MEMS obliquity sensor is detected between the telescopic rod and horizontal plane
Inclination angle, the computer calculate the vertical displacement of the valve rod according to obliquity information, to obtain the displacement letter of the spool
Breath.
2. system according to claim 1, which is characterized in that the computer is by the displacement information of spool, by wired
Mode is sent to outside valve body.
3. system according to claim 1, which is characterized in that the relationship at the vertical displacement of the valve rod and the inclination angle is such as
Under:
Horizontal distance × tan (inclination angle) of vertical displacement=valve rod and valve wall.
4. system according to claim 2, which is characterized in that the wired mode is to form through-hole on the valve wall,
The computer is connected to outside via the through-hole using conducting wire, the computer is transmitted information to by the conducting wire
Outside, and outside passes through the conducting wire to the computer power supply.
5. system according to claim 4, which is characterized in that the conducting wire is multiply compound wire.
6. system according to claim 1, which is characterized in that the telescopic rod is left and right symmetrically arranged in the valve rod, often
The MEMS obliquity sensor is installed on a telescopic rod, forms the MEMS obliquity sensor in the valve rod
It is symmetrically arranged.
7. system according to claim 6, which is characterized in that the telescopic rod passes through articulated manner and the valve rod and institute
State the connection of valve wall.
8. system according to claim 7, which is characterized in that the length and installation site of the telescopic rod can be according to valve bodies
Diameter, spool stroke and mounting condition are adjusted.
9. system according to claim 1, which is characterized in that the measurement accuracy of the MEMS obliquity sensor can
Up to 0.1 degree, the measurement accuracy of the vertical displacement of the valve rod can reach 1 millimeter.
10. system according to claim 1, which is characterized in that low-power-consumption embedded computer can be used in the computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811589621.2A CN109737905B (en) | 2018-12-25 | 2018-12-25 | Safety valve core displacement monitoring system of large pressure container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811589621.2A CN109737905B (en) | 2018-12-25 | 2018-12-25 | Safety valve core displacement monitoring system of large pressure container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109737905A true CN109737905A (en) | 2019-05-10 |
| CN109737905B CN109737905B (en) | 2021-04-13 |
Family
ID=66361146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811589621.2A Active CN109737905B (en) | 2018-12-25 | 2018-12-25 | Safety valve core displacement monitoring system of large pressure container |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1166139A1 (en) * | 1983-11-18 | 1985-07-07 | Bogatushin Boris Ya | Device for determining values of trigonometric functions |
| US4627013A (en) * | 1982-12-01 | 1986-12-02 | Hitachi Construction Machinery Co., Ltd. | Load weight indicating system for load moving machine |
| JP2009162736A (en) * | 2008-01-07 | 2009-07-23 | Michihide Kondo | Length gauge class loaded with calculation software of angle and planimeter |
| CN102392664A (en) * | 2011-07-26 | 2012-03-28 | 北京天地玛珂电液控制系统有限公司 | Hydraulic support with inclination sensors and height measurement method thereof |
| CN103995542A (en) * | 2014-05-04 | 2014-08-20 | 江苏大学 | Level adjusting device and method thereof |
| CN204329886U (en) * | 2015-01-18 | 2015-05-13 | 蒋梦 | A kind of link-type displacement monitor |
| CN105370936A (en) * | 2014-08-11 | 2016-03-02 | 芜湖市金越电子科技有限公司 | A safety valve precision displacement sensor |
| CN105466371A (en) * | 2015-11-23 | 2016-04-06 | 西安航空制动科技有限公司 | Apparatus of measuring aircraft landing gear wheel shaft end position and measurement method thereof |
| CN105571564A (en) * | 2015-12-11 | 2016-05-11 | 北京天地玛珂电液控制系统有限公司 | Height measuring sensor and hydraulic support using same |
| WO2017167962A1 (en) * | 2016-03-31 | 2017-10-05 | H. Schinkel Holding B.V. | Apparatus comprising a pivotable arm and a configurable spring |
| CN108168513A (en) * | 2018-02-27 | 2018-06-15 | 北京天地玛珂电液控制系统有限公司 | A kind of hydraulic support height measuring device and method |
| CN108413911A (en) * | 2018-02-26 | 2018-08-17 | 中国长江电力股份有限公司 | A kind of main dispensing spool displacement measurement method of contactless governor and device |
| CN207832155U (en) * | 2018-03-08 | 2018-09-07 | 郑小飞 | A kind of portable platform clearance survey equipment |
-
2018
- 2018-12-25 CN CN201811589621.2A patent/CN109737905B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4627013A (en) * | 1982-12-01 | 1986-12-02 | Hitachi Construction Machinery Co., Ltd. | Load weight indicating system for load moving machine |
| SU1166139A1 (en) * | 1983-11-18 | 1985-07-07 | Bogatushin Boris Ya | Device for determining values of trigonometric functions |
| JP2009162736A (en) * | 2008-01-07 | 2009-07-23 | Michihide Kondo | Length gauge class loaded with calculation software of angle and planimeter |
| CN102392664A (en) * | 2011-07-26 | 2012-03-28 | 北京天地玛珂电液控制系统有限公司 | Hydraulic support with inclination sensors and height measurement method thereof |
| CN103995542A (en) * | 2014-05-04 | 2014-08-20 | 江苏大学 | Level adjusting device and method thereof |
| CN105370936A (en) * | 2014-08-11 | 2016-03-02 | 芜湖市金越电子科技有限公司 | A safety valve precision displacement sensor |
| CN204329886U (en) * | 2015-01-18 | 2015-05-13 | 蒋梦 | A kind of link-type displacement monitor |
| CN105466371A (en) * | 2015-11-23 | 2016-04-06 | 西安航空制动科技有限公司 | Apparatus of measuring aircraft landing gear wheel shaft end position and measurement method thereof |
| CN105571564A (en) * | 2015-12-11 | 2016-05-11 | 北京天地玛珂电液控制系统有限公司 | Height measuring sensor and hydraulic support using same |
| WO2017167962A1 (en) * | 2016-03-31 | 2017-10-05 | H. Schinkel Holding B.V. | Apparatus comprising a pivotable arm and a configurable spring |
| CN108413911A (en) * | 2018-02-26 | 2018-08-17 | 中国长江电力股份有限公司 | A kind of main dispensing spool displacement measurement method of contactless governor and device |
| CN108168513A (en) * | 2018-02-27 | 2018-06-15 | 北京天地玛珂电液控制系统有限公司 | A kind of hydraulic support height measuring device and method |
| CN207832155U (en) * | 2018-03-08 | 2018-09-07 | 郑小飞 | A kind of portable platform clearance survey equipment |
Non-Patent Citations (1)
| Title |
|---|
| 王天雷; 张京玲; 王柱; 贺跃帮; 陈振杰: "基于多电动机的智能升降工作台控制系统设计与实现", 《电气应用》 * |
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|---|---|
| CN109737905B (en) | 2021-04-13 |
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