CN205262545U - Positive pressure electricity dust and ash removing bucket charge level indicator - Google Patents
Positive pressure electricity dust and ash removing bucket charge level indicator Download PDFInfo
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- CN205262545U CN205262545U CN201520941381.3U CN201520941381U CN205262545U CN 205262545 U CN205262545 U CN 205262545U CN 201520941381 U CN201520941381 U CN 201520941381U CN 205262545 U CN205262545 U CN 205262545U
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Abstract
The utility model discloses a positive pressure electricity dust and ash removing bucket charge level indicator, it includes air supply pump, air -vent valve, three -way valve, pressure transmitter and comparison controller, the air supply pump pass through the air supply hose with the one end of air -vent valve is connected, the other end of air -vent valve pass through the air supply hose with the air inlet of three -way valve is connected, the ash bucket material level department of metal air supply union coupling to the electric precipitation is passed through to the first gas outlet of three -way valve, the second gas outlet of three -way valve pass through the air supply hose with the pressure transmitter inlet end is connected, pressure transmitter's signal output part with relatively the controller electricity is connected. Because the utility model provides a charge level indicator is the malleation, accessible time blows measurand department ash bucket lateral wall off and hangs the ash, has solved traditional charge level indicator owing to reasons such as ash bucket lateral wall string ash often lead to the mistake to send out the problem of material level.
Description
Technical field:
The utility model relates to level-sensing device, particularly relates to a kind of positive-pressure type electric precipitation ash bucket material levelMeter.
Background technology:
At present, the level gauging of thermal power plant electric precipitation ash bucket mainly adopts field-effect level-sensing deviceOr nucleon level-sensing device, field-effect level-sensing device has ashless to its magnetic according to 360 degree around measuring probeLogical impact is measured, but because the reasons such as ash bucket sidewall dust often cause mistake issuance of materials position;Although nucleon level-sensing device is known as non-maintaining product, exist and demarcate and ash bucket sidewall dust problem,When nucleon level-sensing device is installed, ash in ash bucket thoroughly cannot be removed, be difficult to demarcate zero point,Therefore ash bucket sidewall dust still can affect measurement result, causes ash position mistake to be sent out.
So the level-sensing device of current measurement material level all can not solve the problem of ash bucket sidewall dust stratification,Ash bucket sidewall dust stratification all can cause level-sensing device wrong report situation.
Utility model content:
The purpose of this utility model is to provide a kind of positive-pressure type electric precipitation ash bucket level-sensing device, mainSolve the measurement that current electric precipitation ash bucket level-sensing device causes due to electric precipitation ash bucket sidewall dustInaccurate problem.
In order to solve the problems of the technologies described above, the utility model provides a kind of positive-pressure type electro-precipitating dustBucket level-sensing device, it comprises air-source pump, pressure regulator valve, triple valve, pressure transmitter and relatively controlsDevice, the air inlet of described air-source pump, described pressure regulator valve and described triple valve is soft by source of the gas successivelyPipe connects, and the first gas outlet of described triple valve and described pressure transmitter inlet end pass through source of the gasFlexible pipe connects, and the signal output part of described pressure transmitter is electrically connected with described comparison controller,The second gas outlet of described triple valve is connected to the ash bucket material level of electric precipitation by metal gas source pipePlace.
Advantage of the present utility model: a kind of positive-pressure type ash bucket charge level indicator that the utility model provides is adoptedWith malleation source of the gas flexible pipe to the compressed air (pressure is adjustable) that blows certain pressure in ash bucket, at ordinary timesBecause metal gas source pipe is close to zero pneumatics power, when ash bucket ash position arrives metal gas source pipe endWhile encirclement by ash, overpressure has significant change, realizes material level survey by measuring tube internal pressureAmount. Because the material level that the utility model provides is counted malleation, can blow in time measured place ash bucket offSidewall dust, has solved traditional level-sensing device and has sent out because the reasons such as ash bucket sidewall dust often cause mistakeThe problem of material level.
Brief description of the drawings:
The knot of the positive-pressure type electric precipitation ash bucket level-sensing device that Fig. 1 provides for the utility model embodimentStructure schematic diagram.
Brief description of the drawings is as follows: 1, air-source pump; 2, pressure regulator valve; 3, triple valve; 4, pressure becomesSend device; 5, comparison controller; 6, ash bucket.
Detailed description of the invention:
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer,Be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, in embodiment of the present utility model, provide a kind of positive-pressure type electricity to removeDirt ash bucket charge level indicator, it comprises air-source pump 1, pressure regulator valve 2, triple valve 3, pressure transmitter 4With comparison controller 5, described air-source pump 1, described pressure regulator valve 2 and 3 air inlets of described triple valveMouth connects by source of the gas flexible pipe successively, described triple valve 3 first gas outlets and described pressure invertingDevice 4 inlet ends connect by source of the gas flexible pipe, the signal output part of described pressure transmitter 4 and instituteState comparison controller 5 and be electrically connected, the second gas outlet of described triple valve 3 is by metal gas source pipeBe connected to the ash bucket 6 material level places of electric precipitation. .
In specific embodiment of the utility model, not homogeneity of pressure regulator valve 2 outlet pressure basesThe dust of amount is set to different value, and the object of pressure transmitter 4 is to measure the metal of level-sensing deviceThe pressure at the ash bucket 6 material level places that gas source pipe touches, pressure transmitter 4 is exported 4-20 milliampereCurrent signal to comparison controller 5, predetermined value of the interior preset in advance of comparison controller 5,The actual pressure value that pressure transmitter 4 records and predetermined value comparison, if actual pressure value is greater thanPredetermined value, comparison controller 5 output alarm signals so, the predetermined value in comparison controller 5Require grey thickness according to actual conditions pressure regulator valve 2 outlet pressures and the interior actual spot of measurement of ash bucket 6 placeArrange, comparison controller 5 can be connected with main frame in actual applications, for staff at any timeDust coverage condition in monitoring ash bucket 6.
A kind of positive-pressure type electric precipitation ash bucket 6 level-sensing devices that the utility model embodiment provides pass throughExperimental results show that the force value that pressure transmitter 4 is measured can react the material level in ash bucket 6, experimentProcess is as follows: by air-source pump 1 power transmission, regulate air-source pump 1 outlet pressure stable to 0.6MPaConstant (simulated field conditions here, to guarantee data reliability).
Regulate pressure regulator valve 2, making its outlet pressure is 0.1MPa, and metal gas source pipe is during to sky, thisTime pressure transmitter 4 show that pressure is 0, metal gas source pipe is contacted to thin ash/cinder surface, noteRecord now pressure transmitter 4 force value, by metal gas source pipe imbed rapidly 10 centimetres of dark thin ashes/In cinder, record now pressure transmitter 4 force value.
Regulate pressure regulator valve 2, making outlet pressure is 0.2MPa, and metal gas source pipe is during to sky, nowPressure transmitter 4 shows that pressure is 0, and metal gas source pipe is contacted to thin ash/cinder surface, recordNow pressure transmitter 4 force value, by metal gas source pipe imbed rapidly 10 centimetres of dark thin ashes/In cinder, record now pressure transmitter 4 force value.
Regulate pressure regulator valve 2, making outlet pressure is 0.3MPa, and metal gas source pipe is during to sky, nowPressure transmitter 4 shows that pressure is 0, and metal gas source pipe is contacted to thin ash/cinder surface, recordNow pressure transmitter 4 force value, by metal gas source pipe imbed rapidly 10 centimetres of dark thin ashes/In cinder, record now pressure transmitter 4 force value.
Regulate pressure regulator valve 2, making outlet pressure is 0.4MPa, and metal gas source pipe is during to sky, nowPressure transmitter 4 shows that pressure is 0, and metal gas source pipe is contacted to thin ash/cinder surface, recordNow pressure transmitter 4 force value, by metal gas source pipe imbed rapidly 10 centimetres of dark thin ashes/In cinder, record now pressure transmitter 4 force value.
Regulate pressure regulator valve 2, making outlet pressure is 0.5MPa, and metal gas source pipe is during to sky, nowPressure transmitter 4 shows that pressure is 0, and metal gas source pipe is contacted to thin ash/cinder surface, recordNow pressure transmitter 4 force value, by metal gas source pipe imbed rapidly 10 centimetres of dark thin ashes/In cinder, record now pressure transmitter 4 force value.
Regulate pressure regulator valve 2, making outlet pressure is 0.6MPa, and metal gas source pipe is during to sky, nowPressure transmitter 4 shows that pressure is 0, and metal gas source pipe is contacted to thin ash/cinder surface, recordNow pressure transmitter 4 force value, by metal gas source pipe imbed rapidly 10 centimetres of dark thin ashes/In cinder, record now pressure transmitter 4 force value.
By above experiment, while using cinder and thin ash in record experiment respectively, metal gas source pipeWhile being inside blown into different pressures compressed air, the force value of pressure transmitter 4 shown measured points,Experimental data as shown in Table 1 and Table 2.
Table 1
Table 2
According to table 1 and table 2 experimental data, when pressure regulator valve 2 outlet pressures are adjusted by 0.1MPaMake in 0.6MPa process, when metal gas source pipe contact cinder or thin gray surface, pressure invertingDevice 4 force value have slight variation; Metal gas source pipe imbeds rapidly cinder or 10 centimetres of thin ashes are dark, pressure transmitter 4 force value have significant change when at degree the place.
In actual applications, ash bucket 6 arranges three level-sensing devices in low, high, eminence, for exampleThe interior dust stratification of ash bucket 6 for thin ash, pressure regulator valve 2 outlet pressures be 0.4MPa, each level-sensing device pre-If value is all made as 20KPa, the level-sensing device pressure that is arranged on ash bucket 6 lowers is 27.4KPa, superCross 20KPa, the level-sensing device at low material level place sends alarm signal, so the existing 10cm in low material level placeAsh exists, and 2 pressure of locating that are arranged on height, high high charge level place are 0, do not send reportAlert signal, illustrates that two places do not have ash to exist.
The above is preferred embodiment of the present utility model, it should be pointed out that for this technologyThe those of ordinary skill in field, is not departing under the prerequisite of principle described in the utility model,Can also make some improvements and modifications, these improvements and modifications also should be considered as of the present utility modelProtection domain.
Claims (1)
1. a positive-pressure type electric precipitation ash bucket level-sensing device, is characterized in that, it comprise air-source pump,Pressure regulator valve, triple valve, pressure transmitter and comparison controller, described air-source pump, described pressure regulationThe air inlet of valve and described triple valve is connected by source of the gas flexible pipe successively, first of described triple valveGas outlet is connected by source of the gas flexible pipe with described pressure transmitter inlet end, described pressure transmitterSignal output part be electrically connected with described comparison controller, the second gas outlet of described triple valve is logicalCross the ash bucket material level place that metal gas source pipe is connected to electric precipitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941381.3U CN205262545U (en) | 2015-11-20 | 2015-11-20 | Positive pressure electricity dust and ash removing bucket charge level indicator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520941381.3U CN205262545U (en) | 2015-11-20 | 2015-11-20 | Positive pressure electricity dust and ash removing bucket charge level indicator |
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| CN205262545U true CN205262545U (en) | 2016-05-25 |
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| CN201520941381.3U Active CN205262545U (en) | 2015-11-20 | 2015-11-20 | Positive pressure electricity dust and ash removing bucket charge level indicator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323409A (en) * | 2016-08-05 | 2017-01-11 | 武汉理工大学 | Material level meter based on pressure recognition |
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2015
- 2015-11-20 CN CN201520941381.3U patent/CN205262545U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323409A (en) * | 2016-08-05 | 2017-01-11 | 武汉理工大学 | Material level meter based on pressure recognition |
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