CN107499756A - A kind of system for judging coal water slurry storage tank falsity water level - Google Patents
A kind of system for judging coal water slurry storage tank falsity water level Download PDFInfo
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- CN107499756A CN107499756A CN201710593916.6A CN201710593916A CN107499756A CN 107499756 A CN107499756 A CN 107499756A CN 201710593916 A CN201710593916 A CN 201710593916A CN 107499756 A CN107499756 A CN 107499756A
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- water
- coal
- slurry
- storage tank
- temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
Abstract
The present invention relates to a kind of system for judging coal water slurry storage tank falsity water level, including：Water-coal-slurry level sensing band is set inside coal water slurry storage tank, and the water-coal-slurry level sensing strip length is to tank bottom, the wherein water-coal-slurry level sensing band structure at the top of coal water slurry storage tank：Test point is laid in phenolic resin material substrate；The test point is the PT100 platinum resistance temperature inductors being laid in the phenolic resin material substrate, if judging, the resistance of the test point in water-coal-slurry level sensing band changes, the PT100 platinum resistance temperatures inductor occurs temperature as resistance rises and occurs at the uniform velocity to rise, according to the water-coal-slurry temperature province of the stabilization of acquisition, the water-coal-slurry actual liquid level that the water-coal-slurry level sensing band detects is inferred to.The present invention solves liquid level gauge common in water-coal-slurry production and falsity water level and clogging occurs.
Description
Technical field
The invention belongs to observation and control technology field, more particularly to a kind of system for judging coal water slurry storage tank falsity water level.
Background technology
Water-coal-slurry is as a kind of boiler environment-friendly fuel, in water-coal-slurry production, treated coal dust, by ball mill
Steel ball rolling roll and be mixed to form water-coal-slurry with water and additive.And the water-coal-slurry rolled by steel ball can produce big calorimetric
Amount, heat caused by water-coal-slurry can carry vapor, and vapor slowly covers measurement water-coal-slurry liquid level as liquid level goes up
The transmitting probe of supersonic liquid level, this is the main reason for ultrasonic level gage of measurement water-coal-slurry liquid level produces falsity water level.When
, it is necessary to which ultrasonic level gage is pulled down when appearance falsity water level, wiping clean transmitting probe could recover to use.And falsity water level is also difficult
With judge, if without in time find falsity water level if because water-coal-slurry poor fluidity, if coal water slurry storage tank liquid level it is too high or
Person is too low, and discharging pump can not reduce liquid level in time, will result in excessive tank, the phenomenon of dry tank.
It is inappropriate if in general direct contact type liquid level gauge carrys out auxiliary judgment falsity water level.Because water-coal-slurry is long-term
Flow detection mouth is accumulated in, causes hardening to block, cleaning is also very troublesome.So present invention one kind judges coal water slurry storage tank vacation
For the system of liquid level in order to ensure that water-coal-slurry is kept the safety in production, technique smoothness is necessary.
The content of the invention
It is an object of the invention to provide a kind of system for judging coal water slurry storage tank falsity water level.
A kind of system for judging coal water slurry storage tank falsity water level, it is characterised in that including：Water is set inside coal water slurry storage tank
Coal slurry liquid level detection band, the water-coal-slurry level sensing strip length is at the top of coal water slurry storage tank to tank bottom, the wherein water-coal-slurry
Level sensing band structure is：Test point is laid in phenolic resin material substrate；The test point is to be laid on the phenolic aldehyde tree
PT100 platinum resistance temperature inductors in fat material substrate, the PT100 platinum resistance temperatures inductor connect temperature sensor；
Water-coal-slurry level sensing band measurement range be the water-coal-slurry tank top to bottom, measurement liquid level range for 0% ~
100%, lattice sum：10, scale division value：10%, set ten PT100 platinum resistance temperatures inductors to connect temperature sensor altogether；Sentence
If the resistance of the test point in disconnected water-coal-slurry level sensing band changes, temperature occurs for the PT100 platinum resistance temperatures inductor
Degree occurs at the uniform velocity to rise as resistance rises, and according to the water-coal-slurry temperature province of the stabilization of acquisition, is inferred to the water-coal-slurry
The water-coal-slurry liquid level that level sensing band detects, and then obtain the specific true liquid level of coal water slurry storage tank；By PT100 platinum electricity
The true liquid level of coal water slurry storage tank that resistance temperature inductor obtains sends out device, a/d converter big by signal, then passes through data processing mould
Block, it is liquid level by the regioinvertions for sensing water-coal-slurry temperature, is made comparisons with coal water slurry storage tank liquid level gauge measured value, refers to
The true liquid level of coal water slurry storage tank that the PT100 platinum resistance temperatures inductor obtains and coal water slurry storage tank liquid level gauge phase between the two
Poor result, so that it may judge whether coal water slurry storage tank falsity water level.
Further, entered to roll due to water-coal-slurry and can produce amount of heat, so PT100 platinum resistance temperature inductors are straight
Contact water-coal-slurry senses its temperature, the liquid level range swithching that the temperature province sensed is set by water-coal-slurry level sensing band
For actual liquid level, then applying ultrasonic lever meter to measure parameter with coal water slurry storage tank in itself compares, draw whether falsity water level.
Further, the PT100 platinum resistance temperatures inductor detection range is from 0 degree to 200 degree, the temperature detected with
The variation relation of resistance is：When the PT100 platinum resistance temperatures inductor is 0 degree, resistance is 100 ohm, at 100 degree
When, resistance is 138.5 ohm, the resistance of the PT100 platinum resistance temperatures inductor with water-coal-slurry temperature rise and on
Rise.
Further, the PT100 platinum resistance temperatures inductor obtains detection temperature according to relational expression：Actual temperature ×
0.385+100 ohms=actual resistance.
Further, the data processing module also includes connection coal water slurry ball mill reactor effluent stream gauge, by what is detected
Water-coal-slurry flow is converted with coal water slurry storage tank capacity, is drawn and is entered how many tons of water-coal-slurry in coal water slurry storage tank, accounts for water-coal-slurry
The percentage of tank capacity, coal water slurry storage tank actual liquid level is calculated, by gained coal water slurry storage tank actual liquid level and level gauging
Compare.
Further, the water-coal-slurry level sensing band measurement range is the water-coal-slurry tank top to bottom, is surveyed
It is 0% ~ 100% to measure liquid level range, lattice sum：10, scale division value：10%.
Further, the PT100 platinum resistance temperatures inductor also includes automatic Proofreading function, and it is specially to state PT100
Platinum resistance temperature inductor includes electric heater, and the electric heater can be heated to required temperature under automatic Proofreading pattern, so
Transmit to data processing module and checked with corresponding resistance according to PT100 temperature and resistance corresponding table again afterwards.
Beneficial effects of the present invention：
1. the present invention will sense water-coal-slurry temperature by directly contacting water-coal-slurry installed in pt100 resistance temperature inductors
Liquid level is changed in region, avoids the influence that vapor causes falsity water level to detecting instrument.
2. the present invention directly contacts water-coal-slurry by pt100 resistance temperature inductors, avoid water-coal-slurry hardening and block inspection
The phenomenon of mouth is surveyed, saves the human time of dismounting cleaning.
Brief description of the drawings
Fig. 1 is a kind of structural representation for the system for judging coal water slurry storage tank falsity water level of the present invention.
Embodiment
Below with reference to the embodiment of the brief description of the drawings present invention.
A kind of system for judging coal water slurry storage tank falsity water level, it is characterised in that including：Water is set inside coal water slurry storage tank
Coal slurry liquid level detection band, the water-coal-slurry level sensing strip length is at the top of coal water slurry storage tank to tank bottom, the wherein water-coal-slurry
Level sensing band structure is：Test point is laid in phenolic resin material substrate；The test point is to be laid on the phenolic aldehyde tree
PT100 platinum resistance temperature inductors in fat material substrate, the PT100 platinum resistance temperatures inductor connect temperature sensor；
Water-coal-slurry level sensing band measurement range be the water-coal-slurry tank top to bottom, measurement liquid level range for 0% ~
100%, lattice sum：10, scale division value：10%, set ten PT100 platinum resistance temperatures inductors to connect temperature sensor altogether；Sentence
If the resistance of the test point in disconnected water-coal-slurry level sensing band changes, temperature occurs for the PT100 platinum resistance temperatures inductor
Degree occurs at the uniform velocity to rise as resistance rises, and according to the water-coal-slurry temperature province of the stabilization of acquisition, is inferred to the water-coal-slurry
The water-coal-slurry liquid level that level sensing band detects, and then obtain the specific true liquid level of coal water slurry storage tank；By PT100 platinum electricity
The true liquid level of coal water slurry storage tank that resistance temperature inductor obtains sends out device, a/d converter big by signal, then passes through data processing mould
Block, it is liquid level by the regioinvertions for sensing water-coal-slurry temperature, is made comparisons with coal water slurry storage tank liquid level gauge measured value, refers to
The true liquid level of coal water slurry storage tank that the PT100 platinum resistance temperatures inductor obtains and coal water slurry storage tank liquid level gauge phase between the two
Poor result, so that it may judge whether coal water slurry storage tank falsity water level.
The PT100 platinum resistance temperatures inductor detection range is from 0 degree to 200 degree, the change of the temperature and resistance that detect
Change relation is：When the PT100 platinum resistance temperatures inductor is 0 degree, resistance is 100 ohm, at 100 degree, resistance
Resistance is 138.5 ohm, and the resistance of the PT100 platinum resistance temperatures inductor rises as water-coal-slurry temperature rises.
The PT100 platinum resistance temperatures inductor obtains detection temperature according to relational expression：Actual temperature × 0.385+100 Europe
Nurse=actual resistance.
The data processing module also includes connection coal water slurry ball mill reactor effluent stream gauge, the water-coal-slurry flow that will be detected
Converted with coal water slurry storage tank capacity, draw and enter how many tons of water-coal-slurry in coal water slurry storage tank, account for coal water slurry storage tank capacity
Percentage, coal water slurry storage tank actual liquid level is calculated, gained coal water slurry storage tank actual liquid level is compared with level gauging.
The water-coal-slurry level sensing band measurement range is the water-coal-slurry tank top to bottom, measures liquid level range
For 0% ~ 100%, lattice sum：10, scale division value：10%.
The PT100 platinum resistance temperatures inductor also includes automatic Proofreading function, and it is specially to state PT100 platinum resistance temperatures
Inductor includes electric heater, and the electric heater can be heated to required temperature under automatic Proofreading pattern, then transmit again to
Data processing module is checked with corresponding resistance according to PT100 temperature and resistance corresponding table.
Claims (6)
- A kind of 1. system for judging coal water slurry storage tank falsity water level, it is characterised in that including：Water coal is set inside coal water slurry storage tank Slurries position detection band, the water-coal-slurry level sensing strip length is at the top of coal water slurry storage tank to tank bottom, the wherein water-coal-slurry liquid Detect band structure in position：Test point is laid in phenolic resin material substrate；The test point is to be laid on the phenolic resin PT100 platinum resistance temperature inductors in material substrate, the PT100 platinum resistance temperatures inductor connect temperature sensor；Institute It is the water-coal-slurry tank top to bottom to state the water-coal-slurry level sensing band measurement range, and measurement liquid level range is 0% ~ 100%, Lattice sum：10, scale division value：10%, from water-coal-slurry tank deck to bottom, water-coal-slurry level sensing band sets ten PT100 platinum electricity altogether Hinder temperature inductor connection temperature sensor；If judging, the resistance of the test point in water-coal-slurry level sensing band changes, institute State PT100 platinum resistance temperatures inductor temperature occurs as resistance rises and occurs at the uniform velocity to rise, according to the water of the stabilization of acquisition Coal slurry temperature province, it is inferred to the water-coal-slurry liquid level that the water-coal-slurry level sensing band detects, and then obtains specific water coal Starch the true liquid level of storage tank；The true liquid level of coal water slurry storage tank that the PT100 platinum resistance temperatures inductor obtains is sent out by signal Big device, a/d converter, then by data processing module, it will sense that the regioinvertions of water-coal-slurry temperature are liquid level, with water Coal paste storage tank liquid level gauge measured value is made comparisons, and the coal water slurry storage tank obtained with reference to the PT100 platinum resistance temperatures inductor is true Liquid level differs result between the two with coal water slurry storage tank liquid level gauge, so that it may judges whether coal water slurry storage tank falsity water level.
- 2. the system according to claim 1 for judging coal water slurry storage tank falsity water level, it is characterised in that the PT100 platinum electricity Temperature inductor detection range is hindered from 0 degree to 200 degree, and the temperature and the variation relation of resistance that detect are：When the PT100 platinum When resistance temperature inductor is 0 degree, resistance is 100 ohm, and at 100 degree, resistance is 138.5 ohm, described The resistance of PT100 platinum resistance temperature inductors rises as water-coal-slurry temperature rises.
- 3. the system according to claim 2 for judging coal water slurry storage tank falsity water level, it is characterised in that the PT100 platinum electricity Hinder temperature inductor and obtain detection temperature according to relational expression：Measurement temperature × 0.385+100 ohms=measurement resistance；Wherein measure Temperature is water-coal-slurry temperature, when PT100 platinum resistance temperature inductors detect water-coal-slurry temperature, is converted into corresponding resistance value, hair Deliver to data processing module.
- 4. the system according to claim 1 for judging coal water slurry storage tank falsity water level, it is characterised in that the data processing mould Block also includes connection coal water slurry ball mill reactor effluent stream gauge, and the water-coal-slurry flow detected is changed with coal water slurry storage tank capacity Calculate, draw and enter how many tons of water-coal-slurry in coal water slurry storage tank, account for the percentage of coal water slurry storage tank capacity, calculate coal water slurry storage tank Actual liquid level, gained coal water slurry storage tank actual liquid level is compared with level gauging.
- 5. the system according to claim 1 for judging coal water slurry storage tank falsity water level, it is characterised in that the PT100 platinum electricity Resistance temperature inductor also includes automatic Proofreading function, and it is specially to state PT100 platinum resistance temperatures inductor to include electric heater, institute Required temperature can be heated under automatic Proofreading pattern by stating electric heater, then again transmit the temperature heated to data processing Module, heated temperature is carried out with resistance corresponding table according to PT100 temperature and checked with corresponding resistance.
- 6. the system according to claim 1 for judging coal water slurry storage tank falsity water level, it is characterised in that judge whether water Coal paste storage tank falsity water level condition：1. the water-coal-slurry liquid level and coal water slurry storage tank liquid of the PT100 platinum resistance temperatures inductor sensing The difference of position meter measurement liquid level between the two is more than 10%；2. the flowmeter and the liquid level and water-coal-slurry of coal water slurry storage tank conversion Difference between storage tank liquid-level meter measurement liquid level is more than 10%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710593916.6A CN107499756A (en) | 2017-07-20 | 2017-07-20 | A kind of system for judging coal water slurry storage tank falsity water level |
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|---|---|---|---|
| CN201710593916.6A CN107499756A (en) | 2017-07-20 | 2017-07-20 | A kind of system for judging coal water slurry storage tank falsity water level |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114718A (en) * | 1980-02-14 | 1981-09-09 | Toshiba Corp | Liquid level indicator |
| US20050217350A1 (en) * | 2004-03-30 | 2005-10-06 | Core Laboratories Canada Ltd. | Systems and methods for controlling flow control devices |
| CN102829840A (en) * | 2011-06-15 | 2012-12-19 | 北京化工大学 | On-line material level identifying system and method of interval stirring heating device based on temperature detection |
| CN202710130U (en) * | 2012-08-03 | 2013-01-30 | 北京憶众联创电气科技有限公司 | Anti-foam liquor level detector |
| CN205048970U (en) * | 2015-10-26 | 2016-02-24 | 大英德创精工设备有限公司 | Plumbous furnace accretion that can avoid false liquid level appearing constructs |
| CN206019722U (en) * | 2016-08-30 | 2017-03-15 | 中广核久源（成都）科技有限公司 | A kind of novel liquid level liquid temperature measurement sensor |
-
2017
- 2017-07-20 CN CN201710593916.6A patent/CN107499756A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114718A (en) * | 1980-02-14 | 1981-09-09 | Toshiba Corp | Liquid level indicator |
| US20050217350A1 (en) * | 2004-03-30 | 2005-10-06 | Core Laboratories Canada Ltd. | Systems and methods for controlling flow control devices |
| CN102829840A (en) * | 2011-06-15 | 2012-12-19 | 北京化工大学 | On-line material level identifying system and method of interval stirring heating device based on temperature detection |
| CN202710130U (en) * | 2012-08-03 | 2013-01-30 | 北京憶众联创电气科技有限公司 | Anti-foam liquor level detector |
| CN205048970U (en) * | 2015-10-26 | 2016-02-24 | 大英德创精工设备有限公司 | Plumbous furnace accretion that can avoid false liquid level appearing constructs |
| CN206019722U (en) * | 2016-08-30 | 2017-03-15 | 中广核久源（成都）科技有限公司 | A kind of novel liquid level liquid temperature measurement sensor |
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Application publication date: 20171222 |