CN202512044U - Ultrasonic monitoring transmitting and receiving device for concentration of pulverized coal - Google Patents
Ultrasonic monitoring transmitting and receiving device for concentration of pulverized coal Download PDFInfo
- Publication number
- CN202512044U CN202512044U CN2012201217318U CN201220121731U CN202512044U CN 202512044 U CN202512044 U CN 202512044U CN 2012201217318 U CN2012201217318 U CN 2012201217318U CN 201220121731 U CN201220121731 U CN 201220121731U CN 202512044 U CN202512044 U CN 202512044U
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- Prior art keywords
- sensor
- locating flange
- transmitting
- flange
- receiving device
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- 239000003245 coal Substances 0.000 title claims abstract description 20
- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 238000002604 ultrasonography Methods 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract 1
- 238000012806 monitoring device Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 239000002817 coal dust Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 206010020843 Hyperthermia Diseases 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000005619 thermoelectricity Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Images
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model discloses an ultrasonic monitoring transmitting and receiving device for the concentration of pulverized coal. The ultrasonic monitoring transmitting and receiving device comprises a primary air duct standard dust section (1), positioning flanges (2) and sensor receiving and transmitting devices (3), wherein paired and fixedly-arranged positioning flanges (2) are arranged on the side wall of the primary air duct standard duct section (1); axes of the paired and fixedly-arranged positioning flanges (2) are positioned in a vertical plane where the axis of the primary air duct standard duct section (1) is positioned; the axes of the paired and fixedly-arranged positioning flanges (2) and the axis of the primary air duct standard duct section (1) are arranged in a staggered manner; inner cavities of the paired and fixedly-arranged positioning flanges (2) are communicated with an inner cavity of the primary air duct standard duct section (1); and one end of each sensor receiving and transmitting device (3) extends into the inner cavity of one positioning flange (2) and is fixedly connected with the positioning flange (2). According to the ultrasonic monitoring transmitting and receiving device disclosed by the utility model, by adjusting a transmitting terminal and a receiving terminal of each sensor receiving and transmitting device in a staggered way and introducing a compressed air source to scour the sensor receiving and transmitting device, the monitoring device is stable in performance and is suitable for popularization and application and has the characteristics of simple structure, low cost and convenience for mounting and maintaining.
Description
Technical field
The utility model relates to the instrument and meter monitoring technical field, and specifically a kind of ultrasound wave coal powder density that is used to monitor the interior coal powder density value size of station boiler primary wind and powder pipe and changes is monitored transmitting and receiving device.
Background technology
The boiler of power plant great majority of China adopt the coal dust firing mode.The quality of boiler combustion operating mode is depended in the economy of pulverized coal firing boiler and security to a great extent, and in the adjustment of boiler combustion operating mode, the adjustment of concentration of pulverized coal plays main effect.
In the thermoelectricity cost of electricity-generating, the expense of fuel has accounted for more than 70%, is the requirement of boiler operatiopn economy so be directed against the optimization of boiler combustion.Boiler combustion optimization can reduce flue gas loss and incomplete combustion loss, thereby improves boiler operating efficiency.In the thermoelectricity boiler operatiopn, the accurate measurement of concentration of pulverized coal plays an important role to safe operation of the boiler.The monitoring means of short of reliable concentration of pulverized coal; Boiler is situation such as unreasonable, the flame kernel deflection of kindling point, combustion conditions shakiness in the producer very easily; Thereby cause the local coking of boiler, high temperature corrosion, boiler thermal output descends, and directly causes the boiler extinguishment accident when serious.In addition, the wind speed of an airduct and the control of coal powder density are improper, very easily cause layering, line clogging or the spontaneous combustion of wind powder, possibly cause boiler extinguishment when serious.
To the measurement of concentration of pulverized coal, released the different scheme of measuring principle both at home and abroad, like laser method, microwave method, capacitance method, temperature differential method, pressure decline method, supercritical ultrasonics technology etc.Compare with existing the whole bag of tricks; Supercritical ultrasonics technology has some special advantages, and irrelevant such as the size-grade distribution and the local flow velocity of measurement result and solid phase composition, particle, automatic cleaning action can prevent that sensor from polluting; Do not have blockage problem, thereby be parallel to pipeline wall installation alleviating wearing and tearing etc.
Summary of the invention
The purpose of the utility model is the defective to prior art, provide a kind of simple in structure, do not have leak, wearing and tearing less, the life-span is long, cost is low and be convenient to the ultrasound wave coal powder density monitoring transmitting and receiving device of installation and maintenance.
The purpose of the utility model solves through following technical scheme:
A kind of ultrasound wave coal powder density monitoring transmitting and receiving device; Comprise airduct prover section, locating flange and sensor R-T unit one time; The sidewall of a said airduct prover section is provided with the locating flange that fixedly installs in pairs; The axial line of the locating flange of said paired setting is positioned at the residing perpendicular of axial line of an airduct prover section and the setting of staggering each other, the intracavity inter-connection of the inner chamber of locating flange and an airduct prover section; One end of sensor R-T unit stretches in the inner chamber of locating flange and with locating flange and is fixedly linked.
Described sensor R-T unit comprises sensor dispensing device and the sensor receiving trap on the locating flange that is installed in paired setting respectively.
Described sensor R-T unit comprises that sensor safeguard structure, sensor splicing ear, sensor connecting pipe, wiring flange and ultrasound wave drive connection jaws; One end of said sensor safeguard structure stretches in the inner chamber of locating flange and with locating flange and is fixedly linked; Be provided with the sensor splicing ear in the inner chamber of sensor safeguard structure; One end of sensor splicing ear is embedded in the groove of an end of intracavity inter-connection of a sensor safeguard structure and an airduct prover section; The other end of sensor splicing ear links to each other with an end of sensor connecting pipe, and the wiring flange that the other end of sensor connecting pipe passes sensor safeguard structure arranged outside links to each other with the ultrasound wave driving connection jaws of wiring flange arranged outside.
Described wiring flange is provided with compressed air inlet and temperature survey hole.
Be provided with sealing gasket between the sidewall of a said airduct prover section and the locating flange.
The utility model is compared prior art has following advantage:
The utility model is realized the transmitting terminal and the receiving end dislocation adjustment of sensor R-T unit through the design of locating flange; Solved sensor strictness in the ultrasonic measurement principle to central issue; Increase work efficiency; And the employing non-contact measurement, prevent the wearing and tearing of coal dust to the sensor R-T unit.
The utility model continues to introduce the inner chamber of compressed gas source scour sensor R-T unit through the compressed air inlet that is provided with from the wiring flange; Prevent inside obstruction and the localized hyperthermia and the cleaning surfaces of sensor R-T unit; When increasing thermal resistance, reducing the resistance consumption, reduce the face temperature of sensor R-T unit; Preventing that coal dust from making moist is attached on the surface of internal cavity of sensor R-T unit, makes to increase the service life the stable performance of sensor R-T unit.
The sensor R-T unit of the utility model adopts integral structure, have simple in structure, do not have leak, wearing and tearing less, the life-span is long, cost is low and be convenient to the characteristics of installation and maintenance, suitable promoting the use of.
Description of drawings
Accompanying drawing 1 is the one-piece construction synoptic diagram of the utility model;
Wherein: 1-airduct prover section; 2-locating flange; 3-sensor R-T unit; 4-sensor safeguard structure; 5-sensor splicing ear; 6-sensor connecting pipe; 7-wiring flange; 8-ultrasound wave drives connection jaws; 9-compressed air inlet; 10-temperature survey hole.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Shown in Fig. 1-3: a kind of ultrasound wave coal powder density monitoring transmitting and receiving device; Comprise airduct prover section 1, locating flange 2 and sensor R-T unit 3 one time; The sidewall of an airduct prover section 1 is provided with the locating flange 2 that fixedly installs in pairs; Be provided with sealing gasket to prevent leakage of pulverized coal between the sidewall of an airduct prover section 1 and the locating flange 2; The axial line of the locating flange 2 that wherein is provided with in pairs is positioned at the residing perpendicular of axial line of an airduct prover section 1 and the setting of staggering each other, the intracavity inter-connection of the inner chamber of locating flange 2 and an airduct prover section 1; One end of sensor R-T unit 3 stretches in the inner chamber of locating flange 2 and with locating flange 2 and is fixedly linked, and sensor R-T unit 3 comprises sensor dispensing device and sensor receiving trap on the locating flange 2 that is installed in paired setting respectively.Above-mentioned sensor R-T unit 3 comprises that sensor safeguard structure 4, sensor splicing ear 5, sensor connecting pipe 6, wiring flange 7 and ultrasound wave drive connection jaws 8; Wherein an end of sensor safeguard structure 4 stretches in the inner chamber of locating flange 2 and with locating flange 2 and is fixedly linked; Be provided with sensor splicing ear 5 in the inner chamber of sensor safeguard structure 4; One end of sensor splicing ear 5 is embedded in the groove of an end of intracavity inter-connection of a sensor safeguard structure 4 and an airduct prover section 1; The other end of sensor splicing ear 5 links to each other with an end of sensor connecting pipe 6; The wiring flange 7 that the other end of sensor connecting pipe 6 passes sensor safeguard structure 4 arranged outside links to each other with the ultrasound wave driving connection jaws 8 of wiring flange 7 arranged outside, also is provided with compressed air inlet 9 and temperature survey hole 10 on the wiring flange 7.
The utility model is realized the transmitting terminal and the receiving end dislocation adjustment of sensor R-T unit 3 through the design of locating flange 2; Solved sensor strictness in the ultrasonic measurement principle to central issue; Increase work efficiency; And the employing non-contact measurement, prevent the wearing and tearing of coal dust to sensor R-T unit 3; Continue to introduce the inner chamber of compressed gas source scour sensor R-T unit 3 simultaneously through the compressed air inlet 9 that is provided with from wiring flange 7; Prevent inside obstruction and the localized hyperthermia and the cleaning surfaces of sensor R-T unit 3; When increasing thermal resistance, reducing the resistance consumption, reduce the face temperature of sensor R-T unit 3; Preventing that coal dust from making moist is attached on the surface of internal cavity of sensor R-T unit 3, makes to increase the service life 3 stable performances of sensor R-T unit; And sensor R-T unit 3 adopts integral structures, have simple in structure, do not have leak, wearing and tearing less, the life-span is long, cost is low and be convenient to the characteristics of installation and maintenance, suitable promoting the use of.
The technology that the utility model does not relate to all can realize through prior art.
Claims (5)
1. a ultrasound wave coal powder density is monitored transmitting and receiving device; Comprise an airduct prover section (1), locating flange (2) and sensor R-T unit (3); The sidewall that it is characterized in that a said airduct prover section (1) is provided with the locating flange (2) that fixedly installs in pairs; The axial line of the locating flange of said paired setting (2) is positioned at the residing perpendicular of axial line of an airduct prover section (1) and the setting of staggering each other, the intracavity inter-connection of the inner chamber of locating flange (2) and an airduct prover section (1); One end of sensor R-T unit (3) stretches in the inner chamber of locating flange (2) and with locating flange (2) and is fixedly linked.
2. ultrasound wave coal powder density monitoring transmitting and receiving device according to claim 1 is characterized in that described sensor R-T unit (3) comprises sensor dispensing device and the sensor receiving trap on the locating flange (2) that is installed in paired setting respectively.
3. ultrasound wave coal powder density monitoring transmitting and receiving device according to claim 1 and 2; It is characterized in that described sensor R-T unit (3) comprises that sensor safeguard structure (4), sensor splicing ear (5), sensor connecting pipe (6), wiring flange (7) and ultrasound wave drive connection jaws (8); One end of said sensor safeguard structure (4) stretches in the inner chamber of locating flange (2) and with locating flange (2) and is fixedly linked; Be provided with sensor splicing ear (5) in the inner chamber of sensor safeguard structure (4); One end of sensor splicing ear (5) is embedded in the groove of an end of intracavity inter-connection of sensor safeguard structure (4) and an airduct prover section (1); The other end of sensor splicing ear (5) links to each other with an end of sensor connecting pipe (6), and the wiring flange (7) that the other end of sensor connecting pipe (6) passes sensor safeguard structure (4) arranged outside links to each other with the ultrasound wave driving connection jaws (8) of wiring flange (7) arranged outside.
4. ultrasound wave coal powder density monitoring transmitting and receiving device according to claim 3 is characterized in that described wiring flange (7) is provided with compressed air inlet (9) and temperature survey hole (10).
5. ultrasound wave coal powder density according to claim 1 monitoring transmitting and receiving device is characterized in that being provided with sealing gasket between sidewall and the locating flange (2) of a said airduct prover section (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201217318U CN202512044U (en) | 2012-03-28 | 2012-03-28 | Ultrasonic monitoring transmitting and receiving device for concentration of pulverized coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201217318U CN202512044U (en) | 2012-03-28 | 2012-03-28 | Ultrasonic monitoring transmitting and receiving device for concentration of pulverized coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202512044U true CN202512044U (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201217318U Expired - Lifetime CN202512044U (en) | 2012-03-28 | 2012-03-28 | Ultrasonic monitoring transmitting and receiving device for concentration of pulverized coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202512044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863569A (en) * | 2015-04-22 | 2015-08-26 | 中国矿业大学 | Experimental device for coal powder production and migration rules under ultrasonic wave loading |
-
2012
- 2012-03-28 CN CN2012201217318U patent/CN202512044U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863569A (en) * | 2015-04-22 | 2015-08-26 | 中国矿业大学 | Experimental device for coal powder production and migration rules under ultrasonic wave loading |
| CN104863569B (en) * | 2015-04-22 | 2017-09-26 | 中国矿业大学 | Coal dust generation, the experimental provision of migration rule under ultrasonic pressing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: In Nanjing Ruihua Environmental Protection Technology Co Ltd Assignor: Nanjing Zoneng Ruihua Electric Co., Ltd. Contract record no.: 2015320000637 Denomination of utility model: Ultrasonic monitoring transmitting and receiving device for concentration of pulverized coal Granted publication date: 20121031 License type: Exclusive License Record date: 20151125 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: In Nanjing Ruihua Environmental Protection Technology Co Ltd Assignor: Nanjing Zoneng Ruihua Electric Co., Ltd. Contract record no.: 2015320000637 Date of cancellation: 20160113 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CP03 | Change of name, title or address |
Address after: 210032 Jiangsu Province, Nanjing Jiangbei District Lijing Road No. 2 building A block 4 layer development Patentee after: Nanjing new watt Intelligent Control Technology Co., Ltd. Address before: Pukou high tech Zone in Nanjing city of Jiangsu Province, Lijing road 210032 No. 2 R & D building A block 4 layer Patentee before: Nanjing Zoneng Ruihua Electric Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |
|
| CX01 | Expiry of patent term |