CN108613714B - Stainless steel pipe coal level measuring device - Google Patents
Stainless steel pipe coal level measuring device Download PDFInfo
- Publication number
- CN108613714B CN108613714B CN201810420658.6A CN201810420658A CN108613714B CN 108613714 B CN108613714 B CN 108613714B CN 201810420658 A CN201810420658 A CN 201810420658A CN 108613714 B CN108613714 B CN 108613714B
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- stainless steel
- measuring device
- coal
- steel pipe
- pressure
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- 239000003245 coal Substances 0.000 title claims abstract description 71
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 67
- 239000010935 stainless steel Substances 0.000 title claims abstract description 67
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 26
- 238000012545 processing Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000004364 calculation method Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention relates to a stainless steel pipe coal level measuring device for a coal silo, which is used for determining the current coal storage amount of the coal silo by measuring the pressure exerted by coal when a steel pipe is buried in a coal pile of the coal silo. The stainless steel pipe coal level measuring device is formed by splicing a plurality of sections of stainless steel pipe basic unit combination structures, and each unit comprises a stainless steel pipe and a pressure measuring device. The stainless steel tube is a hollow round tube, and has the main functions of: bearing the pressure from coal, conveying the pressure measuring device to a designated position in a coal bunker, and guiding and protecting a signal lead of the pressure measuring device; the pressure measuring device comprises a pressure sensor and a protective shell, and is mainly used for detecting the pressure of coal, connecting an upper section of stainless steel pipe with a lower section of stainless steel pipe and protecting the pressure sensor so that the pressure sensor can stably work under the conditions of corrosion, dust, heavy load and high-frequency collision. The device can realize distributed measurement of the pressure of the coal in the coal silo, and can estimate the real-time reserve of the coal through a specific calculation method.
Description
Technical field:
The invention relates to a stainless steel pipe coal level measuring device, in particular to a pressure measuring stainless steel pipe for measuring coal pressure in a coal silo to estimate real-time coal reserves.
The background technology is as follows:
As known, the coal silo is generally up to tens of meters, and the real-time estimation of the coal quantity can ensure the timely replenishment of coal, so that the operation efficiency of the system and the alarm of the excessive coal level are improved. The method for judging the coal storage amount in the coal silo by naked eyes not only is time-consuming and labor-consuming, but also is difficult to accurately judge when the dust exists in the coal silo, and the method for directly observing the coal silo by naked eyes and measuring the coal storage amount by a manual probe rod has certain potential safety hazards in consideration of the height of the coal silo, so that the real-time measurement of the coal amount is very necessary by utilizing a technical means.
The coal level measurement is carried out under the severe conditions of corrosion, dust, large load and high-frequency collision of the coal silo, and no effective technical means exist in the market at present. The conventional level gauge is provided with a radar, an ultrasonic sensor and the like, but the working environment is bad, and the influence factors are complicated and cannot work normally; conventional pressure sensors and travel switches are not easy to install and have a short service life under corrosive, heavy load and high frequency impact conditions. Therefore, it is very necessary to design a coal level measuring device which is corrosion resistant, has high bearing capacity and is dust-proof.
The invention comprises the following steps:
the invention aims to provide a stainless steel pipe coal level measuring device used under a coal silo. The device can estimate the real-time coal storage amount by carrying out distributed measurement on the pressure value of coal by penetrating into a coal silo under the severe environments of corrosion, dust, large load and high-frequency collision.
The above object of the present invention is achieved by the following technical solutions:
A stainless steel pipe coal level measuring device which is characterized in that: the combined structure is formed by assembling basic units of a plurality of sections of stainless steel pipes, the structures of the sections are identical, and two sections are cut for explanation. The two-section stainless steel tube basic unit combination structure comprises a stainless steel tube I, a rubber sleeve I, a stainless steel tube II, a rubber sleeve II, a stainless steel tube III, a pressure measuring device I and a pressure measuring device II.
The stainless steel pipe I is a hollow circular pipe, and pipe threads are arranged on the upper and lower parts of the inner hole and are used for being connected with the pressure measuring device I. The main function is to bear the pressure from coal, send the pressure measuring device into the designated position in the coal bunker, guide and protect the signal lead I of the pressure measuring device;
The pressure measuring device I is mainly used for connecting the stainless steel pipe I with the stainless steel pipe II and protecting the S-shaped pressure sensor so that the pressure measuring device I can stably work under the conditions of corrosion, dust, large load and high-frequency collision. The left half cylinder pipe and the right half cylinder pipe are assembled through bolts to serve as a protective shell, and the upper section and the lower section of the protective shell are pipe external threads. The rubber sleeve I is sleeved outside the protective shell, and the effect of protecting the S-shaped pressure sensor and transmitting pressure is achieved. The S-shaped pressure sensor is connected with the two force transmission blocks through threads, sufficient allowance is reserved on the length of the threads, and the distance between the force transmission blocks and the S-shaped pressure sensor can be adjusted. The S-shaped pressure sensor is arranged in the protective shell, arc surfaces are arranged in the left semi-cylindrical tube and the right semi-cylindrical tube and used for positioning and mounting the S-shaped pressure sensor, and the force transmission block I and the force transmission block II respectively penetrate through rectangular holes of the left semi-cylindrical tube and the right semi-cylindrical tube to be in contact with the rubber sleeve I. The pressure measuring device I is connected with the stainless steel pipe I and the stainless steel pipe II through pipe threads. The structure of the pressure measuring device II is the same as that of the pressure measuring device I, a rubber sleeve II is sleeved outside the pressure measuring device II, and the pressure measuring device II is connected with a stainless steel pipe II and a stainless steel pipe III through pipe threads.
The stainless steel pipe coal level measuring device formed by splicing the stainless steel pipe basic unit combination structures can adapt to different heights of coal silos, and distributed measurement of coal pressure can be realized by collecting signals of pressure sensors in each section of pressure measuring device.
The technical scheme adopted by the invention has the following technical effects:
1. the structure is simple, and the transportation and the installation are convenient;
2. the invention can be used in severe environments of corrosion, dust, large load and high-frequency collision, has long service life, and is easy to detach and replace at the contact part with coal;
3. the S-shaped pressure sensor selected by the invention has enough measuring range;
4. the invention can carry out distributed measurement on the coal pressure, and can estimate the real-time coal level through data processing of the measured pressure;
5. the invention can protect the signal lead under severe environment, thereby ensuring the stability and accuracy of signal transmission.
6. The invention can adapt to coal silos with different heights by adjusting the number of the sections of the stainless steel tube basic unit combination structure.
Description of the drawings:
the invention is further described below with reference to the accompanying drawings;
FIG. 1 is a schematic diagram of a basic unit combination structure of a two-section stainless steel pipe according to the present invention;
FIG. 2 is a front view in full section of the two-section stainless steel tube base unit assembly of the present invention;
FIG. 3 is a sectional view of the basic unit assembly of the two-section stainless steel tube of the present invention;
FIG. 4 is a full cross-sectional view of the stainless steel tube of the present invention;
FIG. 5 is an isometric projection of a pressure sensor of the present invention;
FIG. 6 is an isometric projection of a pressure sensor transfer block I of the present invention;
FIG. 7 is an isometric projection of the rubber sleeve I of the present invention;
fig. 8 is a front view of an assembled view of the protective case of the pressure measuring device I of the present invention;
Fig. 9 is a left side view of an assembled view of the protective case of the pressure measuring device I of the present invention;
FIG. 10 is a front view of the left semi-cylindrical tube of the present invention;
FIG. 11 is a full cross-sectional view of the left side view of the right semi-cylindrical tube of the present invention;
FIG. 12 is a view of the use of the present invention within a coal silo;
In the figure: 1. stainless steel pipe I,2, rubber sleeve I,3, stainless steel pipe II,4, rubber sleeve II,5, stainless steel pipe III,6, pressure measuring device I,601, left semi-cylindrical pipe, 60101, lower pipe thread, 60102, center section, 60103, bolt hole, 60104, upper pipe thread, 60105, circular arc surface, 60106, rectangular hole, 602, force transmitting block I,603, signal lead I,604, right semi-cylindrical pipe, 605, force transmitting block II,606, bolts I,607, bolts II,608, type S pressure sensor, 7, pressure measuring device II,701, signal lead II.
Specific embodiments:
the invention is described in detail below with reference to the attached drawing figures:
referring to fig. 1, the invention is formed by splicing a plurality of sections of stainless steel tube basic unit combination structures, the structures of the sections are the same, and two sections are cut for illustration. The part of the stainless steel pipe coal level measuring device section contacted with the outside comprises a stainless steel pipe I1, a rubber sleeve I2, a stainless steel pipe II3, a rubber sleeve II4 and a stainless steel pipe III5.
Referring to fig. 2, 3, 5, 8, 9 and 11, the stainless steel pipe coal level measuring device is of a hollow structure, and the stainless steel pipe I1, the stainless steel pipe II3 and the stainless steel pipe III5 are connected by pipe threads through the pressure measuring device I6 and the pressure measuring device II7 respectively. The pressure measuring device I6 and the pressure measuring device II7 have the same structure. The pressure measuring device I6 comprises a left semi-cylindrical pipe 601, a force transmission block I602, a signal lead 603, a right semi-cylindrical pipe 604, a force transmission block II605, a bolt fastener I606, a bolt fastener II607 and an S-shaped pressure sensor 608. The left half cylindrical pipe 601 and the right half cylindrical pipe 604 have the same structure, and are assembled through a bolt I606 and a bolt I607 to serve as a protective shell of the pressure measuring device I. The S-shaped pressure sensor 608 is assembled with the force transmission block I602 and the force transmission block II605 through threaded connection, the force transmission block I602 and the force transmission block II605 have the same structure, and the length direction of the assembled cuboid is vertical to the horizontal direction. The arc surface on the S-shaped pressure sensor 608 is attached to the arc surface 60105 on the left semi-cylindrical pipe 601, the force transmission block I602 passes through the rectangular hole 60106 and contacts the rubber sleeve I2, and the force transmission block II605 passes through the rectangular hole of the right semi-cylindrical pipe 604 and contacts the rubber sleeve I2. The signal lead I603 and the signal lead II701 are pulled to a ground signal receiving end, and are protected from external interference by a stainless steel tube.
Referring to fig. 4, the stainless steel pipe I1 is a stainless steel metal round pipe, and the upper and lower parts in the pipe are pipe internal threads and are connected with the pipe threads of the pressure measuring device I6.
Referring to fig. 6, the force transmission block I602 has a T-shaped structure, an upper portion has a rectangular parallelepiped structure, and a lower portion has a stud, and is assembled with the S-shaped pressure sensor 608 through the stud.
Referring to fig. 7, the rubber sleeve 2 has a circular tube structure, and can be just sleeved outside the pressure measuring device I6, and is in contact with the force transmission block I602 and the force transmission block II 605.
Referring to fig. 10 and 11, the left semi-cylindrical tube 601 includes a lower tube thread 60101, a central section 60102, a bolt hole 60103, an upper tube thread 60104, an arc surface 60105, and a rectangular hole 60106. The left half cylindrical pipe 601 and the right half cylindrical pipe 604 are cut by a stepped shaft, and have the same structure. Lower pipe threads 60101, upper pipe threads 60104 and rectangular holes 60106 in the left semi-cylindrical pipe 601 are assembled with the left semi-cylindrical pipe after the semi-cylindrical groove and the arc surface 60105 are machined. The circular arc surface 60105 is machined according to the circular arc size of the S-shaped pressure sensor 608. Rectangular aperture 60106 is sized to snugly receive force transfer block I602.
Referring to fig. 12, the stainless steel pipe coal level measuring device is installed at the top of the coal bin, and a plurality of sets of measuring devices can be arranged in view of the size of the coal bin so as to obtain the accuracy of measured data.
Working principle:
the stainless steel pipe coal level measuring device is characterized in that a pressure sensor is buried in a coal pile of the coal silo, and the real-time coal level is calculated by measuring the radial pressure of the received coal pile. The stainless steel pipe coal level measuring device can be formed by splicing a plurality of sections of stainless steel pipe basic unit combination structures, and each unit is provided with a pressure measuring device, so that the distributed measurement of coal pressure can be realized, and the device can adapt to different heights of coal silos. The left half cylindrical pipe 601 and the right half cylindrical pipe 604 are assembled by bolts as a protective shell of the pressure measuring device I6, and are connected with the stainless steel pipe I1 and the stainless steel pipe II3 by pipe threads. The outside of the pressure measuring device I6 is sleeved with a rubber sleeve I2. The pressure measuring device I6 is provided with an S-shaped pressure sensor 608 in a protective shell. The S-shaped pressure sensor 608 is connected with the force transmission block I602 and the force transmission block II605 through threads, and the force transmission block I602 and the force transmission block II605 respectively pass through rectangular holes on the left semi-cylindrical pipe 601 and the right semi-cylindrical pipe 604 to be in contact with the rubber sleeve I2. The stainless steel pipe coal level measuring device penetrates into the coal pile and bears radial load from coal. The rubber sleeve I2 is pressed, the force transmission block transmits pressure to the S-shaped pressure sensor 608, a pressure signal is transmitted to an external signal receiver through the signal lead I603, and the stainless steel tube I1 protects the signal lead I603 from the external severe environment. The signal receiver receives pressure signals from the pressure measuring devices at each section, the distributed measurement of the pressure is realized, the data are transmitted to a computer for data processing, and the real-time coal level can be estimated.
Claims (1)
1. The stainless steel pipe coal level measuring device is characterized by being assembled by a plurality of sections of stainless steel pipe basic unit combined structures, and the sections have the same structure; two sections of stainless steel tube basic unit combined structure are cut for illustration, and the two sections of stainless steel tube basic unit combined structure comprise the following parts: stainless steel tube I (1), rubber sleeve I (2), stainless steel tube II (3), rubber sleeve II (4), stainless steel tube III (5), pressure measuring device I (6) and pressure measuring device II (7); the pressure measuring device I (6) is connected with the stainless steel pipe I (1) and the stainless steel pipe II (3) through pipe threads, and the rubber sleeve I (2) is sleeved outside the pressure measuring device I (6); the structure of the pressure measuring device II (7) is the same as that of the pressure measuring device I (6), the pressure measuring device II (7) is connected with the stainless steel pipe II (3) and the stainless steel pipe III (5) through pipe threads, and the rubber sleeve II (4) is sleeved outside the pressure measuring device II (7); the pressure measuring device I (6) comprises a left semi-cylindrical tube (601), a force transmission block I (602), a signal lead (603), a right semi-cylindrical tube (604), a force transmission block II (605), a bolt fastener I (606), a bolt fastener II (607) and an S-shaped pressure sensor (608); the left semi-cylindrical pipe (601) and the right semi-cylindrical pipe (604) are assembled through a bolt I (606) and a bolt I (607) to serve as a protective shell of the pressure measuring device I; the S-shaped pressure sensor (608) is connected with the force transmission block I (602) and the force transmission block II (605) through threads, and the force transmission block I (602) and the force transmission block II (605) respectively penetrate through rectangular holes (60106) of the left semi-cylindrical pipe (601) and the right semi-cylindrical pipe (604) to be in contact with the rubber sleeve I (2); the stainless steel pipe coal level measuring device can carry out distributed measurement on coal pressure, and real-time coal level can be estimated through data processing of measured pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810420658.6A CN108613714B (en) | 2018-05-04 | 2018-05-04 | Stainless steel pipe coal level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810420658.6A CN108613714B (en) | 2018-05-04 | 2018-05-04 | Stainless steel pipe coal level measuring device |
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| Publication Number | Publication Date |
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| CN108613714A CN108613714A (en) | 2018-10-02 |
| CN108613714B true CN108613714B (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810420658.6A Active CN108613714B (en) | 2018-05-04 | 2018-05-04 | Stainless steel pipe coal level measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110745401A (en) * | 2019-11-29 | 2020-02-04 | 河南理工大学 | Automatic coal bunker coal level detection and alarm device based on pressure sensor and use method thereof |
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| CN105222947A (en) * | 2015-10-16 | 2016-01-06 | 中国海洋大学 | Spliced type sea bed with range protective device surpasses hole pressure and measures feeler lever |
| CN206038093U (en) * | 2016-07-22 | 2017-03-22 | 上海波汇科技股份有限公司 | Liquid level measurement device of wide range high accuracy |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2279593Y (en) * | 1996-06-06 | 1998-04-22 | 马玉民 | Bin level meter |
| CN2574023Y (en) * | 2002-10-29 | 2003-09-17 | 成都中商高新技术开发有限公司 | Optoelectronic stored grain level monitoring device |
| US8297119B2 (en) * | 2005-06-16 | 2012-10-30 | Multitrode Pty Ltd | Liquid level monitoring apparatus and methods |
| CN2901271Y (en) * | 2006-06-14 | 2007-05-16 | 中国石油天然气集团公司 | Flange diaphragm sealed liquid level and pressure transmitter |
| CN101210899B (en) * | 2006-12-27 | 2010-08-11 | 中国科学院沈阳应用生态研究所 | Method and device for determining soil moisture |
| CN204142321U (en) * | 2014-10-27 | 2015-02-04 | 无锡昆仑海岸物联科技有限公司 | Barrier film protection throwing static pressure liquid level transmitter |
| CN204535812U (en) * | 2015-03-11 | 2015-08-05 | 牟爱政 | A kind of survey fly ash in electric power plant storehouse, pulverized coal warehouse level-sensing device |
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2018
- 2018-05-04 CN CN201810420658.6A patent/CN108613714B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222947A (en) * | 2015-10-16 | 2016-01-06 | 中国海洋大学 | Spliced type sea bed with range protective device surpasses hole pressure and measures feeler lever |
| CN206038093U (en) * | 2016-07-22 | 2017-03-22 | 上海波汇科技股份有限公司 | Liquid level measurement device of wide range high accuracy |
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| CN108613714A (en) | 2018-10-02 |
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