CN204535812U - A kind of survey fly ash in electric power plant storehouse, pulverized coal warehouse level-sensing device - Google Patents
A kind of survey fly ash in electric power plant storehouse, pulverized coal warehouse level-sensing device Download PDFInfo
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- CN204535812U CN204535812U CN201520135456.9U CN201520135456U CN204535812U CN 204535812 U CN204535812 U CN 204535812U CN 201520135456 U CN201520135456 U CN 201520135456U CN 204535812 U CN204535812 U CN 204535812U
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Abstract
The utility model relates to a kind of survey fly ash in electric power plant storehouse, pulverized coal warehouse level-sensing device, comprises the first sensory package, the second sensory package, link rod, flange, terminal box and Displaying Meter; Described second sensory package is arranged on the top of the first sensory package; Described second sensory package is connected with terminal box by link rod, flange; Described Displaying Meter is connected with the first sensory package, the second sensory package respectively by signal wire.The utility model scheme utilizes two the diaphragm type sensing element pressure difference meters installed in same vertical plane to calculate the relation of material unit height and pressure, not by the restriction of burning coal; By diffusion silicon pressure sensor and diaphragm type sensing element are organically combined, comprehensive storehouse (storehouse) level gauging, measurement result is accurate, meets on-the-spot automatic control control overflow; In-site installation, debugging are simply; Non-maintaining, reliability is high, and mission life is at 4-8, and error is at positive and negative 20 centimetres; Robotization networking is convenient, meets different power plant needs.
Description
Technical field
The utility model relates to a kind of material-level measure meter, is specifically related to a kind of level-sensing device being applied to coal-fired station's ash storehouse flyash material level, middle warehouse coal dust real-time online measuring.
Background technology
In coal-fired power plant, the level gauging in flyash storehouse, middle warehouse coal dust storehouse is a difficult problem always.Main cause one is that flyash or coal dust are very thin, easy airborne dust, and easily sticky paying causes measurement to lose efficacy on the measurement probe; Two is the changes due to coal, and flyash or coal dust specific inductive capacity etc. easily change by the change of humidity, causes measurement inaccurate.Manual measurement material level is the most accurate in level gauging, reliable level gauging mode, but because field working conditions is extremely severe, danger is large, is not suitable for employing manual measurement.
Along with scientific development, increasing measuring method is available, as: the continuous quantity metering systems such as switching value metering system and weight, condenser type, Weighing type, radar, ultrasound wave, gamma-rays such as resistance is revolved, tuning fork, radio frequency admittance.But many measurement mechanisms are by measuring principle and restriction that is on-the-spot, manufacturing condition, and the application in power plant's feed bin is not very good.Can realize this level gauging instrument strict to working condition requirement very few, the most frequently used continuous quantity metering system has: radio frequency admittance (ultrasound wave) level-sensing device, Plumb-bob Material Level Meter, radar type level-sensing device etc.
One is radio frequency admittance mode: shortcoming measures feeler lever to be positioned at inside, electric precipitation storehouse (storehouse), easily by ash (coal dust) parcel, causes measurement inaccurate; Storehouse (storehouse) material level can not be measured by gamut; Affect greatly by humidity of materials.
Two is that weight is measured: advantage measures accurately, and operation letter is answered; Shortcoming is that periodic maintenance amount is large, and measured hole emits ash (coal dust) outward, needs periodic maintenance, cleaning; Weight wirerope is easily wound around; Measure discontinuous.
Three is wirerope radargrammetrys: be based on higher-frequency radar principle of reflection; Advantage continuous coverage and measure accurately; Shortcoming is price; Different manufacturers performance difference is large.
More than analyze, inquire into that a kind of reliability is high, coal is adaptable, the flyash storehouse of real-time measurement and middle warehouse breeze material position measurement mechanism have very large meaning.
Utility model content
The utility model object provides one to utilize flyash (coal dust) very thin to overcome the deficiencies in the prior art, has flow characteristics and the pressure characteristic of water, utilize pressure application to survey the level-sensing device of material level under gasification wind action.
For achieving the above object, the technical solution adopted in the utility model is: a kind of survey fly ash in electric power plant storehouse, pulverized coal warehouse level-sensing device, comprise the first sensory package, the second sensory package, link rod, flange, terminal box and Displaying Meter; Described second sensory package is arranged on the top of the first sensory package; Described second sensory package is connected with terminal box by link rod, flange; Described Displaying Meter is connected with the first sensory package, the second sensory package respectively by signal wire.
Improve further as the utility model, described first sensory package is identical with the second sensory package structure.
Improve further as the utility model, described first sensory package or the second sensory package structure comprise sleeve pipe, stay pipe, diaphragm type sensing element and diffuse si sensor; Described sleeve pipe is vertically arranged, and stay pipe radial direction is arranged on sleeve pipe; Described diaphragm type sensing element is fixed on stay pipe by square elbow; Described diffuse si sensor is in sleeve pipe, is connected by kapillary and diaphragm type sensing element; Described kapillary connects an oil fuel tube.
Improve further as the utility model, the diaphragm type sensing element in described first sensory package is on the left of sleeve pipe; Diaphragm type sensing element in described second sensory package is on the right side of sleeve pipe.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
The survey fly ash in electric power plant storehouse of the utility model scheme, pulverized coal warehouse level-sensing device, utilize two the diaphragm type sensing element pressure difference meters installed in same vertical plane to calculate the relation of material unit height and pressure, not by the restriction of burning coal; By diffusion silicon pressure sensor and diaphragm type sensing element are organically combined, comprehensive storehouse (storehouse) level gauging, measurement result is accurate, meets on-the-spot automatic control control overflow; In-site installation, debugging are simply; Non-maintaining, reliability is high, and mission life is at 4-8, and error is at positive and negative 20 centimetres; Robotization networking is convenient, meets different power plant needs.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Accompanying drawing 1 is the structural representation of survey fly ash in electric power plant storehouse of the present utility model, pulverized coal warehouse level-sensing device;
Wherein: 1, the first sensory package; 2, the second sensory package; 3, link rod; 4, flange; 5, terminal box; 6, Displaying Meter; 7, signal wire; 11, sleeve pipe; 12, stay pipe; 13, diaphragm type sensing element; 14, diffuse si sensor; 15, square elbow; 16 kapillaries; 17, oil fuel tube.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1 be described in the utility model one survey fly ash in electric power plant storehouse, pulverized coal warehouse level-sensing device, comprise the first sensory package 1, second sensory package 2, link rod 3, flange 4, terminal box 5 and Displaying Meter 6; Described second sensory package 2 is arranged on the top of the first sensory package 1; Described second sensory package 2 is connected with terminal box 5 by link rod 3, flange 4; Described Displaying Meter 6 is connected with the first sensory package 1, second sensory package 2 respectively by signal wire 7.
In the present embodiment, the first sensory package 1 is identical with the second sensory package 2 structure.
First sensory package 1 or the second sensory package 2 structure comprise sleeve pipe 11 described in sleeve pipe 11, stay pipe 12, diaphragm type sensing element 13 and diffuse si sensor 14 and vertically arrange, and stay pipe 12 radial direction is arranged on sleeve pipe 11; Described diaphragm type sensing element 13 is fixed on stay pipe 12 by square elbow 15; Described diffuse si sensor 14 is in sleeve pipe 11, is connected by kapillary 16 and diaphragm type sensing element 13; Described kapillary 16 connects an oil fuel tube 17.
Diaphragm type sensing element 13 in first sensory package 1 is on the left of sleeve pipe 11; Diaphragm type sensing element in described second sensory package 2 is on the right side of sleeve pipe;
1, the pressure P of flyash in the feature measurement unit area utilizing diaphragm pressure transducer to measure pressed powder pressure;
2, two diaphragm pressure transducer pressure differential Δ P of difference certain altitude H are utilized to calculate the height of unit flyash and the corresponding relation Δ H=Δ P/H of pressure; Material level h=P/ Δ H;
3, installation site is from barrel at least 50 centimetres, prevents fluffy ash on the impact of measuring;
4, backstage non-liner revision is carried out to material level; According to storehouse (storehouse) concrete height, select the vertical range of two sensors;
5, metal guide rod is utilized by two sensors by grey storehouse (powder storehouse) feeding storehouse, top (storehouse) inner bottom part;
6, on-the-spot Realtime Level Displaying Meter is designed;
According to calculating and site test, diaphragm type sensing element diaphragm adopts 316 stainless steels, diaphragm diameter 70-80 millimeter, thickness 0.08 millimeter, adopts sine bellows; Diaphragm type sensing element parent diameter 950-960 millimeter, thickness 150-160 millimeter, material 304 stainless steel, punch in back; No. 50 silicone oil are filled in diaphragm type sensing element; Diaphragm pressure transducer pressure detection part adopts diffuse si sensor; Diaphragm type sensing element kapillary adopts interior diameter 2 millimeter of 304 stainless-steel tube; Upper and lower two diaphragm type sensing elements 180 degree installation; Diaphragm type sensing element installation level is less than 1 degree; It is 1.5 meters that guide rod often saves length, and centre connects with silk braid.
Below be only embody rule example of the present utility model, protection domain of the present utility model is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, all drops within the utility model rights protection scope.
Claims (4)
1. survey fly ash in electric power plant storehouse, a pulverized coal warehouse level-sensing device, it is characterized in that: comprise the first sensory package, the second sensory package, link rod, flange, terminal box and Displaying Meter; Described second sensory package is arranged on the top of the first sensory package; Described second sensory package is connected with terminal box by link rod, flange; Described Displaying Meter is connected with the first sensory package, the second sensory package respectively by signal wire.
2. survey fly ash in electric power plant storehouse according to claim 1, pulverized coal warehouse level-sensing device, is characterized in that: described first sensory package is identical with the second sensory package structure.
3. survey fly ash in electric power plant storehouse according to claim 1 and 2, pulverized coal warehouse level-sensing device, is characterized in that: described first sensory package or the second sensory package structure comprise sleeve pipe, stay pipe, diaphragm type sensing element and diffuse si sensor; Described sleeve pipe is vertically arranged, and stay pipe radial direction is arranged on sleeve pipe; Described diaphragm type sensing element is fixed on stay pipe by square elbow; Described diffuse si sensor is in sleeve pipe, is connected by kapillary and diaphragm type sensing element; Described kapillary connects an oil fuel tube.
4. survey fly ash in electric power plant storehouse according to claim 3, pulverized coal warehouse level-sensing device, is characterized in that: the diaphragm type sensing element in described first sensory package is on the left of sleeve pipe; Diaphragm type sensing element in described second sensory package is on the right side of sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520135456.9U CN204535812U (en) | 2015-03-11 | 2015-03-11 | A kind of survey fly ash in electric power plant storehouse, pulverized coal warehouse level-sensing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520135456.9U CN204535812U (en) | 2015-03-11 | 2015-03-11 | A kind of survey fly ash in electric power plant storehouse, pulverized coal warehouse level-sensing device |
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| Publication Number | Publication Date |
|---|---|
| CN204535812U true CN204535812U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520135456.9U Expired - Fee Related CN204535812U (en) | 2015-03-11 | 2015-03-11 | A kind of survey fly ash in electric power plant storehouse, pulverized coal warehouse level-sensing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613714A (en) * | 2018-05-04 | 2018-10-02 | 吉林大学 | A kind of stainless steel tube coal level measurement device |
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2015
- 2015-03-11 CN CN201520135456.9U patent/CN204535812U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613714A (en) * | 2018-05-04 | 2018-10-02 | 吉林大学 | A kind of stainless steel tube coal level measurement device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150805 Termination date: 20180311 |