CN115507219A - Wireless safety valve position accurate measurement device based on Hall principle - Google Patents

Wireless safety valve position accurate measurement device based on Hall principle Download PDF

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Publication number
CN115507219A
CN115507219A CN202211161321.0A CN202211161321A CN115507219A CN 115507219 A CN115507219 A CN 115507219A CN 202211161321 A CN202211161321 A CN 202211161321A CN 115507219 A CN115507219 A CN 115507219A
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CN
China
Prior art keywords
safety valve
hall
valve
monitoring
valve position
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.)
Withdrawn
Application number
CN202211161321.0A
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Chinese (zh)
Inventor
曹永兵
张健
阚勇
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Shuwei Technology Suzhou Co ltd
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Shuwei Technology Suzhou Co ltd
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Priority to CN202211161321.0A priority Critical patent/CN115507219A/en
Publication of CN115507219A publication Critical patent/CN115507219A/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0041—Electrical or magnetic means for measuring valve parameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

The invention relates to the technical field of safety valve position measurement, and discloses a wireless safety valve position accurate measurement device based on a Hall principle. The hall sensor module turns into output voltage's change with the magnetic field that changes, just can monitor magnetic field change through monitoring voltage's change, if magnetic field change when relevant with the position change, then can realize the monitoring to the displacement through the monitoring to voltage, install the composite magnetic stripe structure in the upper portion of valve rod, with the outside of hall sensor module installation and valve cap, will drive composite magnetic stripe structure upward movement when the valve rod motion in-process, and trigger hall sensor module and realize the monitoring to relief valve body action process.

Description

Wireless safety valve position accurate measurement device based on Hall principle
Technical Field
The invention relates to the technical field of safety valve position measurement, in particular to a wireless safety valve position accurate measurement device based on a Hall principle.
Background
The safety valve is used as the last line of defense of pressure equipment, plays a very important role in the process industry, and the monitoring of the action performance of the safety valve is also a very concerned content in the use process of the safety valve. The performance requirements for safety valves mainly include: tight sealing, accurate take-off, overpressure opening and timely seat return. The actual opening height of the safety valve needs to be identified in the performance, so that whether the action performance of the safety valve meets the requirement or not is judged. In addition, abnormal conditions such as misoperation exist in the actual operation process of the safety valve, the misoperation condition of the safety valve can be monitored by monitoring the opening height of the safety valve, and the usability of the safety valve is evaluated.
The monitoring of the valve action position includes two categories, namely contact type and non-contact type, and the difference of the working principle includes: a pull-wire type displacement sensor, a laser displacement sensor, etc. However, the existing displacement sensing mode mainly realizes the displacement monitoring of the moving object through physical contact or photoelectric contact. For most safety valves, the moving parts are sealed inside the safety valve, and the outer side of the safety valve is wrapped by a metal shell capable of bearing certain pressure. Therefore, the valve position cannot be directly measured by displacement sensing methods such as a pull wire type and a laser type. In addition, the action process of the safety valve is very quick, the displacement is large or small, the requirement on the accuracy of the sensor is high, and the influence of external stress of a moving part on the action performance of the safety valve, particularly the set pressure, is great. The safety valve position monitoring device capable of monitoring the action process of the safety valve and meeting the requirement of convenient installation is not available at the present stage under the influence of the reasons.
At present, the method for monitoring the action of the safety valve mainly comprises the following steps: contact displacement sensor measurements, laser sensors, acoustic monitoring, and the like.
(1) Contact type displacement sensor
The contact displacement sensor is common in the safety valve action performance test process, and common monitors comprise a probe type displacement sensor, a pull-wire type displacement sensor and the like. Such a monitoring device usually needs to be directly connected with the structure of the safety valve, when the safety valve is provided with a valve cap (a valve rod is in a closed state), the monitoring device cannot be used, in addition, the monitoring precision of a contact type displacement sensor is generally lower, the identification capability on micro displacement is poorer, and key action parameters such as setting pressure of the safety valve and the like are possibly influenced (because additional acting force is introduced, although the additional acting force is very small, the safety valve is very sensitive)
(2) Laser sensor
Laser sensor can realize the accurate measurement to relief valve rod displacement through transmission, acceptance laser signal, though sensing device does not directly have direct contact with the structure of being surveyed, but equally need place valve rod and sensor in the same space of no separation, installs the unable use of this monitoring devices of valve cap (valve rod is in the encapsulated situation) when the relief valve. In addition, the energy consumption of the laser displacement sensor is large, and the power supply of a small-sized mobile power supply is difficult to realize.
(3) Acoustic, temperature monitoring
The action process of the safety valve can be monitored in the mode of acoustic (vibration) and temperature monitoring, but the monitoring mainly realizes qualitative monitoring on whether the safety valve is opened or not, and cannot realize monitoring on the accurate valve position change of the safety valve.
Namely, the problems of the prior safety valve position measuring device are as follows:
(1) The contact type and laser type displacement sensors cannot be applied to a closed safety valve structure;
(2) Safety valve action monitoring based on acoustic (vibration) and temperature measurement can only be carried out qualitatively, accurate and quantitative measurement cannot be realized, and the monitoring result is greatly influenced by the state of a medium;
(3) The monitoring method based on the multi-Hall sensor structure has large energy consumption and cannot realize passive design.
Disclosure of Invention
The invention aims to provide a wireless safety valve position accurate measuring device based on a Hall principle, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a wireless relief valve position accurate measurement device based on hall principle, includes the relief valve body, this internal valve rod that is equipped with of relief valve, the top of valve rod is connected with compound magnetic stripe structure, the top of valve rod and the top outside of compound magnetic stripe structure are equipped with the valve cap, there is the outside of valve cap to have relief valve wireless valve position monitoring devices through bolted connection.
The preferred improvement mode of a wireless relief valve position precision measurement device based on hall principle that provides as this application, relief valve wireless valve position monitoring devices includes power module, monitoring shell, bluetooth wireless module, hall sensor module and wire, the monitoring shell is connected with the valve cap through the bolt, the inside of monitoring shell is equipped with power module, bluetooth wireless module, hall sensor module, utilize the wire to carry out UNICOM between power module, bluetooth wireless module, the hall sensor module, power module provides electric power for bluetooth wireless module and hall sensor module.
As the preferred improvement mode of the wireless safety valve position accurate measurement device based on the Hall principle that this application provides, the monitoring shell adopts non-metallic material, the wall of monitoring shell is pressed close to the Hall sensor module, and is the symmetric distribution.
As an optimized improvement mode of the Hall principle-based wireless safety valve position accurate measurement device, the Bluetooth wireless module and the Hall sensor module are designed with low power consumption.
The preferred improvement mode of a wireless relief valve position precision measurement device based on hall principle that the application provided, compound magnetic stripe structure includes column magnetic stripe and magnetic stripe subassembly shell, the inside at the magnetic stripe subassembly shell is fixed through the mode of die-casting to the column magnetic stripe, magnetic stripe subassembly shell is connected with the valve rod.
As a preferable improvement mode of the Hall principle-based device for accurately measuring the valve position of the wireless safety valve, the magnetic strip assembly shell is made of a non-metal material.
As the preferable improvement mode of the wireless safety valve position accurate measurement device based on the Hall principle, the top of the valve rod is provided with a threaded hole, the bottom of the magnetic stripe assembly shell is provided with a threaded column, and the threaded hole is matched with the threaded column.
As a preferable improvement mode of the hall-principle-based device for accurately measuring the valve position of the wireless safety valve, the bonnet is made of a non-magnetic material.
As an optimal improvement mode of the Hall principle-based accurate valve position measuring device for the wireless safety valve, the Hall principle-based accurate valve position measuring device comprises an upper computer, wherein the upper computer is connected with a Bluetooth wireless module in a Bluetooth wireless connection mode.
Compared with the prior art, the invention has the beneficial effects that:
according to the device for accurately measuring the valve position of the wireless safety valve based on the Hall principle, aiming at the monitoring requirement of the valve position of the safety valve, a moving part of a safety valve structure usually comprises a valve clack, a recoil disc and a valve rod structure, the valve clack can drive the recoil disc and the valve rod structure to move upwards in the opening process of a safety valve body, whether the safety valve body acts can be monitored through monitoring of the moving part, and the valve cap is installed at the uppermost part of the safety valve body to seal the safety valve body;
the Hall sensor module converts a changed magnetic field into the change of output voltage, the change of the magnetic field can be monitored by monitoring the change of the voltage, if the change of the magnetic field is related to the change of the position, the displacement can be monitored by monitoring the voltage, the composite magnetic stripe structure is arranged on the upper part of the valve rod, the Hall sensor module is arranged on the outer side of the valve cap, the composite magnetic stripe structure is driven to move upwards in the moving process of the valve rod, and the Hall sensor module is triggered to monitor the action process of the safety valve body;
be equipped with power module on the wireless valve position monitoring devices of relief valve, need not the external power supply, sustainable use more than a year, through passing through bluetooth wireless connection mode through the host computer and being connected with bluetooth wireless module, has realized wireless data transmission, can accomplish the monitoring to relief valve body action process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic overall structure diagram of a precise measurement device for a valve position of a wireless safety valve based on the Hall principle;
FIG. 2 is an enlarged view of the position A of the device for accurately measuring the valve position of the wireless safety valve based on the Hall principle;
FIG. 3 is a sectional view of a safety valve wireless valve position monitoring device of the wireless safety valve position accurate measurement device based on the Hall principle;
FIG. 4 is a schematic diagram of a columnar magnetic stripe structure of the device for accurately measuring the valve position of the wireless safety valve based on the Hall principle;
fig. 5 is a schematic structural diagram of a magnetic stripe assembly shell of the device for accurately measuring the valve position of the wireless safety valve based on the hall principle.
In the figure: 1. a safety valve body; 11. a bonnet; 12. a valve stem; 2. a safety valve wireless valve position monitoring device; 21. monitoring the housing; 22. a bolt; 23. a Bluetooth wireless module; 24. a Hall sensor module; 25. a power supply module; 26. a wire; 3. a composite magnetic stripe structure; 31. a columnar magnetic stripe; 32. a magnetic stripe assembly housing; 4. and an upper computer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the invention provides a precise valve position measuring device of a wireless safety valve based on a hall principle, which comprises a safety valve body 1, wherein a valve rod 12 is arranged in the safety valve body 1, the top of the valve rod 12 is connected with a composite magnetic strip structure 3, the top of the valve rod 12 and the outer side of the top of the composite magnetic strip structure 3 are provided with valve caps 11, the outer side of the valve cap 11 is connected with a safety valve wireless valve position monitoring device 2 through bolts 22, moving parts of the structure of the safety valve body 1 usually further comprise a valve clack, a recoil disc and a spring structure, and the valve clack, the recoil disc and the spring structure are arranged in the safety valve body 1.
In one embodiment of the invention, the safety valve wireless valve position monitoring device 2 comprises a power module 25, a monitoring shell 21, a bluetooth wireless module 23, a hall sensor module 24 and a lead 26, wherein the monitoring shell 21 is connected with the valve cap 11 through a bolt 22, the power module 25, the bluetooth wireless module 23 and the hall sensor module 24 are arranged inside the monitoring shell 21, the power module 25, the bluetooth wireless module 23 and the hall sensor module 24 are communicated through the lead 26, and the power module 25 provides power for the bluetooth wireless module 23 and the hall sensor module 24. The Hall sensor module (24) is made according to the Hall effect. The Hall device has the characteristics of small volume, light weight, convenient installation, low power consumption, high frequency, long life, vibration resistance, and resistance to oil stain, water vapor, salt mist, dust and the like.
The Hall sensing principle is adopted to realize non-contact measurement, and a closed safety valve structure can be applied; the Hall sensor module (24) is adopted to realize accurate measurement, and the measurement process is not influenced by temperature and medium state; the Hall sensor module (24) is adopted, and a low-power-consumption design method is utilized to realize passive independent installation and long-period operation.
The valve clack drives the recoil disc and the valve rod 12 structure to move upwards in the opening process of the safety valve body 1, whether the safety valve body 1 moves or not can be monitored by monitoring the moving part, and the valve cap 11 is installed at the uppermost part of the safety valve body 1 to seal the safety valve body 1; hall sensor module 24 turns into output voltage's change with the magnetic field that changes, change through monitoring voltage just can monitor magnetic field change, if magnetic field change when relevant with the position change, then can realize the monitoring to the displacement through the monitoring to voltage, install compound magnetic stripe structure 3 in the upper portion of valve rod 12, install hall sensor module 24 with the outside of valve cap 11, will drive compound magnetic stripe structure 3 upward movement when valve rod 12 motion process, and trigger hall sensor module 24 and realize the monitoring to relief valve body 1 action process.
In one embodiment of the present invention, the monitoring housing 21 is made of a non-metal material, and the hall sensor modules 24 are close to the wall surface of the monitoring housing 21 and are symmetrically distributed.
In one embodiment of the present invention, the bluetooth wireless module 23 and the hall sensor module 24 are designed with low power consumption.
By adopting the low-power design of the Bluetooth wireless module 23 and the Hall sensor module 24, the measuring device can work for at least one year under the passive condition.
In one embodiment of the present invention, the composite magnetic stripe structure 3 comprises a cylindrical magnetic stripe 31 and a magnetic stripe assembly housing 32, the cylindrical magnetic stripe 31 is fixed inside the magnetic stripe assembly housing 32 by die casting, and the magnetic stripe assembly housing 32 is connected with the valve stem 12.
In one embodiment of the present invention, the magnetic stripe assembly housing 32 is a non-metallic material.
The magnetic strip assembly shell 32 is made of non-metal materials, the columnar magnetic strips 31 are fixed in the structure through a die-casting mode, the lengths of the columnar magnetic strips 31 at different heights are different, the magnetic field intensity provided by the columnar magnetic strips is linearly related to the length of the structure, the magnetic pole directions of all the magnetic strips are consistent,
in one embodiment of the present invention, the top of the valve stem 12 is provided with a threaded hole and the bottom of the magnetic strip assembly housing 32 is provided with a threaded post, and the threaded hole and the threaded post are adapted to fit together.
Through utilizing screw hole and threaded column to be connected between valve rod 12 and magnetic stripe assembly shell 32, be convenient for dismantle and be connected between valve rod 12 and the magnetic stripe assembly shell 32.
In one embodiment of the present invention, the bonnet 11 is made of a non-magnetic material.
By using a non-magnetic material for the bonnet 11, the influence on the magnetic field is reduced.
In one embodiment of the present invention, the device comprises an upper computer 4, and the upper computer 4 is connected with a bluetooth wireless module 23 through a bluetooth wireless connection mode.
Through host computer 4 through bluetooth wireless connection mode with be connected with bluetooth wireless module 23, realized wireless data transmission, can accomplish the monitoring to relief valve body 1 action process.
The working principle is as follows: when using this device, the sealing to the medium is realized in the valve clack of spring action in the relief valve body 1 under the normal conditions, after medium pressure rose to setting pressure, medium pressure can promote the valve clack of relief valve body 1, the recoil dish, valve rod 12 upward movement, can drive 3 upward movements of compound magnetic stripe structure after the valve rod 12 upward movement, magnetic stripe motion in-process hall sensor module 24 can receive magnetic field variation's influence output voltage change, voltage variation data will be to host computer 4 through bluetooth wireless transmission's mode, host computer 4 just can accomplish the monitoring to relief valve body 1 action process through handling transmission signal.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a wireless relief valve position accurate measurement device based on hall principle, includes relief valve body (1), its characterized in that, be equipped with valve rod (12) in relief valve body (1), the top of valve rod (12) is connected with compound magnetic stripe structure (3), the top of valve rod (12) and the top outside of compound magnetic stripe structure (3) are equipped with valve cap (11), the outside that has valve cap (11) is connected with relief valve wireless valve position monitoring devices (2) through bolt (22).
2. The Hall principle-based wireless safety valve position accurate measuring device is characterized in that the safety valve position accurate measuring device (2) comprises a power module (25), a monitoring shell (21), a Bluetooth wireless module (23), a Hall sensor module (24) and a wire (26), the monitoring shell (21) is connected with the valve cap (11) through a bolt (22), the monitoring shell (21) is internally provided with the power module (25), the Bluetooth wireless module (23) and the Hall sensor module (24), the power module (25), the Bluetooth wireless module (23) and the Hall sensor module (24) are communicated through the wire (26), and the power module (25) provides power for the Bluetooth wireless module (23) and the Hall sensor module (24).
3. The Hall principle-based wireless safety valve position accurate measurement device is characterized in that the monitoring shell (21) is made of non-metal materials, and the Hall sensor modules (24) are close to the wall surface of the monitoring shell (21) and are symmetrically distributed.
4. The hall-based wireless safety valve position accurate measurement device is characterized in that the bluetooth wireless module (23) and the hall sensor module (24) are designed with low power consumption.
5. The hall-based wireless safety valve position accurate measurement device is characterized in that the composite magnetic strip structure (3) comprises a columnar magnetic strip (31) and a magnetic strip assembly shell (32), the columnar magnetic strip (31) is fixed inside the magnetic strip assembly shell (32) through a die-casting mode, and the magnetic strip assembly shell (32) is connected with the valve rod (12).
6. The Hall-principle-based precise valve position measuring device for the wireless safety valve according to claim 5, wherein the magnetic strip assembly shell (32) is made of a non-metal material.
7. The Hall-principle-based wireless safety valve position accurate measurement device is characterized in that a threaded hole is formed in the top of the valve rod (12), a threaded column is formed in the bottom of the magnetic strip assembly shell (32), and the threaded hole is matched with the threaded column.
8. The hall principle-based wireless safety valve position accurate measurement device is characterized in that the valve cap (11) is made of non-magnetic material.
9. The Hall principle-based wireless safety valve position accurate measurement device is characterized by comprising an upper computer (4), wherein the upper computer (4) is connected with a Bluetooth wireless module (23) in a Bluetooth wireless connection mode.
CN202211161321.0A 2022-09-22 2022-09-22 Wireless safety valve position accurate measurement device based on Hall principle Withdrawn CN115507219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211161321.0A CN115507219A (en) 2022-09-22 2022-09-22 Wireless safety valve position accurate measurement device based on Hall principle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211161321.0A CN115507219A (en) 2022-09-22 2022-09-22 Wireless safety valve position accurate measurement device based on Hall principle

Publications (1)

Publication Number Publication Date
CN115507219A true CN115507219A (en) 2022-12-23

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ID=84506340

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211161321.0A Withdrawn CN115507219A (en) 2022-09-22 2022-09-22 Wireless safety valve position accurate measurement device based on Hall principle

Country Status (1)

Country Link
CN (1) CN115507219A (en)

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Application publication date: 20221223

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