CN207717186U - A kind of device of detection lignite high temperature pyrolysis coke powder level - Google Patents
A kind of device of detection lignite high temperature pyrolysis coke powder level Download PDFInfo
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- CN207717186U CN207717186U CN201721738837.1U CN201721738837U CN207717186U CN 207717186 U CN207717186 U CN 207717186U CN 201721738837 U CN201721738837 U CN 201721738837U CN 207717186 U CN207717186 U CN 207717186U
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- detection
- high temperature
- coke powder
- temperature pyrolysis
- pyrolysis coke
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Abstract
The utility model provides a kind of device of detection lignite high temperature pyrolysis coke powder level, including probe unit, cooling unit, control unit；Wherein, the probe unit includes detection pipes and detection electrode, and the detection electrode is mounted on the detection pipes lower part；The detection electrode includes detecting electrode and insulation magnet ring, and the adjacent detecting electrode is separated by the insulation magnet ring；The cooling unit is mounted on the outside on the detection pipes top in the form of coating；Described control unit includes power-supply controller of electric, data converter, and the variation of the power on/off of this detection device of the power-supply controller of electric field control, the resistance value that the probe unit detects is converted to electric signal by the data converter.By designing above, the utility model can be used for detecting the material position of the more complicated lignite high temperature pyrolysis coke powder of operating mode.
Description
Technical field
The utility model belongs to high temperature material-level measure technical field, more particularly to a kind of detection lignite high temperature pyrolysis coke powder
The device of material position.
Background technology
Level gauging is typically referred to material in closed in industrial processes or open container (solid or liquid level)
Height is detected, and the instrument for completing this measurement task is called level meter.Common high temperature material-level detecting device has：Radio frequency is led
Receive level-sensing device, ultrasonic radar level-sensing device, radioactive source level-sensing device etc..
There is defects for the common all kinds of devices for high temperature material-level measure.Radio frequency admittance level-sensing device is in dust concentration phase
When, there are two problem, first problem is that material itself is equivalent to a capacitance to probe, it is not consumed under high working environment
The energy of transmitter, but bridging to containing resistance in the equivalent circuit of probe, then the impedance of bridging can consume energy, to shake
It swings device voltage to pull down, causes bridge output to change, generate measurement error, and error change is very big at different conditions.Second
A problem is for conductive material, and the earth point of probe insulation layer surface covers entire material and bridging area, makes effectively to measure
Capacitance expands to the top of bridging, just generates bridging error in this way, and the stronger error of electric conductivity is bigger.These problems make radio frequency
Admittance level-sensing device cannot accurately detect material position under conditions of hot conditions and material containing electric conductivity, resist stifled and anti-adhesion
It can poor, high failure rate.And radar level gauge and radioactive source level-sensing device are poor to the higher Environment identification degree of dust concentration, and cost compared with
Height, radioactive source also have human body larger injury, management service of high cost.
The use of medium is much solid material, detection environmental condition is very severe, conventional detection device in coal chemical technology
It is unable to reach expected using effect so that lack in running operating process, even provide wrong important basis for estimation, give
Operating personnel bring larger operation difficulty, become system operation risk factors.
It is a kind of high temperature suitable for coal chemical technology of research, inflammable easy in order to measure the material position of lignite high temperature pyrolysis coke powder
Explosion environment, and not because granular material have conductive characteristic due to influence measure material-level detecting device it is imperative.
Utility model content
The purpose of this utility model is to provide a kind of novel Level measurement device simple in structure, may be implemented to measure conductive
Granular material, and can be used for detecting the material position of the more complicated lignite high temperature pyrolysis coke powder of operating mode.The device is not only by material
The influence of electric conductivity, can utilize the electric conductivity of material instead, and the conduction that material different depth is fed back is inserted by electrode
Performance difference realizes the continuous real-time monitoring of high-temperature material (500-900 DEG C) material position.
The device of detection lignite high temperature pyrolysis coke powder level provided by the utility model, including probe unit, cooling list
Member, control unit；
Wherein, the probe unit includes detection pipes and detection electrode, and the detection electrode is mounted under the detection pipes
Portion；The detection electrode includes detecting electrode and insulation magnet ring, and the adjacent detecting electrode is separated by the insulation magnet ring；
The cooling unit is mounted on the outside on the detection pipes top in the form of coating；
Described control unit includes power-supply controller of electric and data converter, and the power-supply controller of electric is for this inspection of field control
The power on/off of measurement equipment, the probe unit are used for the resistance value of Detect change and are converted to telecommunications by the data converter
Number.
Further, the cooling unit includes cooler and radiator, and the cooler supplements cooling be situated between by chuck
Matter carries out forced heat-exchanging cooling, and the radiator is mounted between the cooler and testing container, passes through natural heat dissipation mode
Cool down.
Further, the device of the detection lignite high temperature pyrolysis coke powder level passes through connecting flange above testing container
It is attached, the detection pipes are stretched into across the connecting flange in the testing container ontology.
Further, interval is additionally provided between the insulation magnet ring and the detecting electrode, the length at the interval is 0.5
~1.0mm.
Further, the detection device further includes protective gas control valve and protective gas surge tank, the protection gas
Body surge tank is connected by the protective gas control valve with the probe unit.
Further, one end end of the detection pipes connection described control unit is open state, and the detection pipes are stretched
It is closed state to enter one end end in material to be detected.
Further, each detecting electrode corresponds to input Schmidt's comparator, while input terminal is filtered equipped with RC
Wave circuit.
Further, ground terminal is also set up in the side of described control unit.
Further, connecting terminal being also set up in the side of described control unit, described device is powered using isolated power supply,
Power supply is introduced from the connecting terminal.
By above-mentioned the technical solution of the utility model it is found that utility model takes full advantage of leading for lignite high temperature pyrolysis coke powder
Electrical property solves the problems, such as that the Level measurement device under existing hot conditions is undetectable because of material electric conductivity, can be real
The level of the weak inductives granular material such as coke powder continuously detects under existing hot conditions, and operating operation to pyrolysis of coal device provides reliably
With reference to.
Description of the drawings
Illustrate the detailed composition of the utility model below in conjunction with the accompanying drawings.In attached drawing：
Fig. 1 is the knot of one embodiment of the device of the detection lignite high temperature pyrolysis coke powder level designed by the utility model
Structure schematic diagram
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is a part of the embodiment in the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art can make various changes and
Displacement, and the every other embodiment obtained shall fall within the protection scope of the present invention.
The utility model makes full use of the electric conductivity of high temperature coke powder, and high temperature is realized using multipoint electrode stepping detection mode
The measurement of coke powder level.Temperature-sensitive element and detection device separation, and temperature in use is improved using cooling way.Between detecting electrode
And it is relatively independent between electrode and insulation magnet ring, and there are gaps between electrode and insulation magnet ring, are protected by being blown out in gap
Protect the process that gas realizes cutting bridging.
All detecting electrodes all communicate, but are only contacted with detecting electrode by conductive material, can just make
Detecting electrode forms access by conductive material and vessel so that buries to the spy in the high-temperature coke powder material of high-temperature electric conduction
Surveying electrode has electric current to pass through, and other more than electrode electrodes are with conductive material then because do not contact, by air every
Absolutely, access cannot be formed with vessel, control unit detects the resistance value of detection electrode, and is converted into current signal, fortune
The material position of the corresponding high temperature coke powder of electrode is obtained after calculation.
When carrying out material-level measure using the device of detection lignite high temperature pyrolysis coke powder level as shown in Figure 1, using as follows
Mode builds device.
As shown in Figure 1, by detection pipes 5 and equipment container ontology 6 to be detected by flanged joint, 5 top of detection pipes from
Under up mounting flange, radiator 4, cooler 3, control cabinet 2 successively.Connecting terminal 1, ground terminal 12 are installed on control cabinet 2
With protective gas control valve 10.10 other end of protective gas control valve installs surge tank 11.5 lower part of detection pipes is equipped with detecting electrode
9 and insulation magnet ring 8.Detecting electrode 9 is made of (20-40 groups) multigroup, is separated by the magnet ring 8 that insulate between each detecting electrode 9, absolutely
Edge magnet ring 8 is respectively relatively independent with each detecting electrode 9, and there are 0.5~1.0mm mesopores.From protective gas surge tank 11
Inert gas, can pass through detection pipes 5, insulation magnet ring 8 and each detecting electrode 9 between gap quickly spray, to detection device
Surface bridging carry out cutting and elimination.Testing container 6 is stretched into 5 lower part of detection pipes by connecting flange, and detection electrode stretches into be measured
In lignite high temperature pyrolysis coke powder inside vessel 6.Due to the conductive energy of lignite high temperature pyrolysis coke powder, bury to high temperature
There are current signal, control unit 2 to collect and handle the resistance value of detection electrode in detection electrode in coke powder, is converted into electric current letter
Number, the material position information of corresponding lignite high temperature pyrolysis coke powder is known by measuring current signal.
As shown in Figure 1, the device of the detection lignite high temperature pyrolysis coke powder level designed by the utility model, including detection are single
Member, cooling unit, control unit.
Wherein, probe unit includes detection pipes 5 and detection electrode, and detection electrode is mounted on 5 lower part of detection pipes.Detection pipes 5
One termination control cabinet, the other end are stretched by flange in the detection material 7 inside testing container ontology 6.The connection control of detection pipes 5
One end end of case 2 is open state, thus the conducting wire of purge gas and detecting electrode 9 enters.Detection pipes 5 stretch into object to be detected
One end end in material 7 is closed state.Detection electrode includes detecting electrode 9 and insulation magnet ring 8.Detecting electrode 9 is according to be measured
Height of materials range can be made of multigroup, be separated by the magnet ring 8 that insulate between each group detecting electrode, in insulation magnet ring 8 and detection
Also reserved certain interval has the function that clear up surface bridging for purge gas ejection between electrode 9.
Detection pipes 5 are support and the guard member of detecting electrode 9 and insulation magnet ring 8, play strength support role and prevent material
The effect of erosive wear.The materials such as 304,304h, 309s, 310s, incoloy800 are selected according to optional the case where temperature in use
Material, 500 DEG C -900 DEG C of use temperature range.Detecting electrode 9 is made of (20-40 groups) multigroup, by exhausted between each detecting electrode 9
Edge magnet ring 8 separates, and insulation magnet ring 8 is respectively relatively independent with each detecting electrode 9, and there are the gaps 0.5mm-1.0mm.
Wherein, cooling unit is mounted on the outside on 5 top of detection pipes in the form of coating, and cooling unit includes 3 He of cooler
Radiator 4.Cooler 3 supplements cooling medium by chuck form and carries out forced heat-exchanging cooling, and radiator 4 passes through natural heat dissipation side
Formula cools down.
Specifically, cooler 3 and radiator 4 are provided between control cabinet 2 and the vessel of material position to be measured 6.It is cold
But device 3 is to supplement cooling medium by chuck form to carry out forced heat-exchanging cooling, is located at close to the side of control cabinet 2.Heat dissipation
Device 4 is between cooler 3 and testing container ontology, and since it is close to vessel, temperature is relatively high, by natural heat dissipation side
Formula is tentatively cooled down.
It is no more than 50 DEG C when the present apparatus is run for protection 2 temperature in use of control cabinet, need to consume a small amount of cooling medium (can be
Recirculated water, organic solution etc.), medium consumption is about 200kg/h-500kg/h, is controlled by 3 exits and entrances valve of cooler, to visiting
Test tube 5 cools down.Detection pipes 5 pass through flanged joint with equipment container ontology 6 to be detected.Vessel 6 and cooler 3 it
Between radiator 4 is installed to avoid detection pipes 5 since heat transfer so that temperature is excessively high, 4 installation length 300mm- of radiator
500mm.Cooler and radiator are mounted on the outside of detection pipes 5 in the form of coating.
Wherein, control unit 2 includes power-supply controller of electric and data converter, this equipment of power-supply controller of electric field control is led to
The resistance change for the detecting electrode that probe unit detects is converted to current signal by power-off, data converter.
Specifically, the side setting ground terminal 12 and connecting terminal 1 of control unit 2, connecting terminal 1 is from control cabinet 2
It draws side.There are power-supply controller of electric, control power supply to be introduced from connecting terminal 1 in control cabinet 2, and is powered using isolated power supply.It is logical
Cross power-supply controller of electric can field control this detection device power on/off.It is additionally provided with data converter in control cabinet 2, is detected
The resistance change for surveying electrode, 4mA-20mA current signal transfers are converted to control room by data converter.Current signal
It is shown by 1 teletransmission of connecting terminal to control room.The public electrode of live material-level measure electrode assemblies is connected on shell of reactor,
And be connected on the ground terminal 12 of 2 meter case of material position converter control cabinet, it forms meter housing ground wire and in-site measurement is set
Standby and public electrode is altogether.
Other than probe unit, cooling unit and control unit, material-level detecting device further includes protective gas control valve
10 and protective gas surge tank 11.Gas buffer tank 11 is arranged in purge gas outside testing container, is controlled by protective gas
Valve 10 enters control cabinet, the injection mouth for entering detecting electrode 9 between the magnet ring 8 that insulate along 5 inside of detection pipes.From protective gas
The inert gas of surge tank 11, control pressure 200kPa-350kPa are controlled, the opening time by protective gas control valve 10
0.5s-1.0s, gas spray in a pulsed fashion, and the gap that can pass through between insulation magnet ring 8 and each detecting electrode 9 quickly sprays,
Cutting and elimination is carried out to the surface bridging of detection device.
In addition, Level measurement device described in the utility model measures high temperature half using 20-40 electrode step-by-step system
Burnt material position.To ensure that the stability measured, each detecting electrode correspond to input Schmidt's comparator, circuit design drops as possible
Low input resistance prevents from interfering.Input terminal is designed with RC filter circuits simultaneously, to eliminate electrostatic and noise jamming.Electric current is converted
Circuit is constituted using TL431 voltage-stablizers configuration peripheral components.To prevent the electromagnetism of electrostatic interference and device large electric equipment dry
It disturbs, overall measurement conversion circuit is powered using isolated power supply, isolated from power intensity 1000-1500VDC.Output par, c is using isolation
Intensity carries out isolation output for 1000-1500VDC signal isolators and passes to control room, prevents live ground wire and control ground
Fluctuation interference.
One specific embodiment of the utility model is as described below.
Detection pipes 5 select 304 materials to pass through flanged joint with equipment container ontology to be detected.On 5 top of detection pipes under
Up mounting flange, radiator 4, cooler 3, control cabinet 2 successively, installation connecting terminal 1,12 and of ground terminal on control cabinet 2
Protective gas control valve 10,10 other end of protective gas control valve install protective gas surge tank 11.5 lower part of detection pipes is equipped with inspection
Survey electrode 9 and insulation magnet ring 8.Detecting electrode 9 forms (30 groups) by multigroup, and there are the gaps 0.8mm.4 installation length of radiator
400mm, control cabinet 2 consume circulating water medium.3 exits and entrances valve of cooler controls, and cools down to detection pipes 5.Detection
5 lower part of pipe is stretched by flange in the detection material 7 inside testing container ontology 6, the electricity that control cabinet 2 is collected and processing detection arrives
Resistance value is converted into 100mA current signals and is shown by 1 teletransmission of connecting terminal to control room.
The advantageous effect of the utility model embodiment is：The electric conductivity of high-temperature semi-coke material is taken full advantage of, is solved
Level measurement device under the existing hot conditions undetectable problem because of material electric conductivity.It can be achieved burnt under hot conditions
The level of the weak inductives material such as powder continuously detects, and operating operation to pyrolysis of coal device provides reliable reference.
It, cannot the above content is specific better embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the scope of protection of the utility model.
Claims (9)
1. a kind of device of detection lignite high temperature pyrolysis coke powder level, which is characterized in that including probe unit, cooling unit, control
Unit processed；Wherein,
The probe unit includes detection pipes and detection electrode, and the detection electrode is mounted on the detection pipes lower part；The spy
It includes detecting electrode and insulation magnet ring to survey electrode, and the adjacent detecting electrode is separated by the insulation magnet ring；
The cooling unit is mounted on the outside on the detection pipes top in the form of coating；
Described control unit includes power-supply controller of electric, data converter, this detection device of the power-supply controller of electric field control
The variation of power on/off, the resistance value that the probe unit detects is converted to electric signal by the data converter.
2. the device of detection lignite high temperature pyrolysis coke powder level as described in claim 1, which is characterized in that the cooling unit
Including cooler, radiator, the cooler supplements cooling medium by chuck form and carries out forced heat-exchanging cooling, the heat dissipation
Device is mounted between the cooler and testing container, is cooled down by natural heat dissipation mode.
3. the device of detection lignite high temperature pyrolysis coke powder level as described in claim 1, which is characterized in that the detection lignite
The device of high temperature pyrolysis coke powder level is attached above testing container by connecting flange, and the detection pipes pass through the company
Acting flange stretches into the testing container ontology.
4. the device of detection lignite high temperature pyrolysis coke powder level as described in claim 1, which is characterized in that the insulation magnet ring
Interval is additionally provided between the detecting electrode, the length at the interval is 0.5~1.0mm.
5. the device of detection lignite high temperature pyrolysis coke powder level as described in claim 1, which is characterized in that described device is also wrapped
Protective gas control valve and protective gas surge tank are included, the protective gas surge tank passes through the protective gas control valve and institute
Probe unit is stated to be connected.
6. the device of detection lignite high temperature pyrolysis coke powder level as described in claim 1, which is characterized in that the detection pipes connect
One end end for connecing described control unit is open state, and it is closing that the detection pipes, which stretch into one end end in material to be detected,
State.
7. the device of detection lignite high temperature pyrolysis coke powder level as described in claim 1, which is characterized in that each detection
Electrode corresponds to input Schmidt's comparator, while input terminal is equipped with RC filter circuits.
8. the device of detection lignite high temperature pyrolysis coke powder level as described in claim 1, which is characterized in that single in the control
The side of member also sets up ground terminal.
9. the device of detection lignite high temperature pyrolysis coke powder level as described in claim 1, which is characterized in that single in the control
The side of member also sets up connecting terminal, and described device is powered using isolated power supply, and power supply is introduced from the connecting terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721738837.1U CN207717186U (en) | 2017-12-13 | 2017-12-13 | A kind of device of detection lignite high temperature pyrolysis coke powder level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721738837.1U CN207717186U (en) | 2017-12-13 | 2017-12-13 | A kind of device of detection lignite high temperature pyrolysis coke powder level |
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| Publication Number | Publication Date |
|---|---|
| CN207717186U true CN207717186U (en) | 2018-08-10 |
Family
ID=63055611
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721738837.1U Expired - Fee Related CN207717186U (en) | 2017-12-13 | 2017-12-13 | A kind of device of detection lignite high temperature pyrolysis coke powder level |
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| Country | Link |
|---|---|
| CN (1) | CN207717186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487354A (en) * | 2019-08-28 | 2019-11-22 | 清华大学 | Conductive material material-level measure probe and measuring device in conductive container |
-
2017
- 2017-12-13 CN CN201721738837.1U patent/CN207717186U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487354A (en) * | 2019-08-28 | 2019-11-22 | 清华大学 | Conductive material material-level measure probe and measuring device in conductive container |
| CN110487354B (en) * | 2019-08-28 | 2020-12-29 | 清华大学 | Material level detection probe and measuring device for conductive materials in conductive container |
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| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20180810 |
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Date of cancellation: 20220921 Granted publication date: 20180810 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180810 |