CN208459090U - A kind of full-automatic constant speed fly ash sampler - Google Patents
A kind of full-automatic constant speed fly ash sampler Download PDFInfo
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- CN208459090U CN208459090U CN201821223838.7U CN201821223838U CN208459090U CN 208459090 U CN208459090 U CN 208459090U CN 201821223838 U CN201821223838 U CN 201821223838U CN 208459090 U CN208459090 U CN 208459090U
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Abstract
The utility model discloses a kind of full-automatic constant speed fly ash samplers, including probe tube, sampling bottle, separator, union, compressed air adapter tube, it emanates and air ejector and emanates pipe, the probe tube and pipe of emanating are connected on flue tube wall by installing fixed tube socket, the probe tube is connected by electronic sampling valve with separator, pressure regulator valve is arranged in the left side of the compressed air adapter tube, the pressure regulator valve is connected with electronic intake valve, the other end of the electronic intake valve is connected to air ejector of emanating, the other end of the air ejector of emanating connects electronic blow down valve, described pipe one end of emanating is connected with electronic blow down valve, the other end is extend into flue.The utility model can realize probe tube isokinetic sampling, any sample time can be set, without waiting for easy to operate, increase differential pressure measurement in flue and sampling gun, accurate, representative flue gas flying dust available in this way, so that unburned carbon in flue dust is obtained accurate detection, provides reliable foundation for the scientific algorithm of boiler thermal efficiency.
Description
Technical field
The utility model relates to boiler flue Fly ash sampling technical field, specially a kind of full-automatic constant speed Fly ash sampling
Device.
Background technique
Fly ash sampler mainly applies the Fly ash sampling on boiler flue, is a kind of using compressed air as power work
For Venturi nozzle, negative pressure being generated, fume duct fly ash is sucked into separator, flying dust falls into ash bucket after separation, then falls into sampling bottle,
Lack of gas are from a process for newly squeezing into flue.The coal dust of domestic power plant and the sampling method of unburned carbon in flue dust are substantially using shock
Formula sampling point or product fall formula sampling.However current sampler needs are operated manually, inconvenient to use, manipulation strength
Greatly, time-consuming for each point sampling, and pipeline is easy residual, and non-isokinetic sampling, causing sampling, sample representativeness is low is difficult to obtain
Sample that is true and meeting the practical composition of flying dust, thus brings difficulty to the canonical measure of unburned carbon in flue dust.
Utility model content
The purpose of this utility model is to provide a kind of full-automatic constant speed fly ash samplers, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the utility model provides the following technical solutions: a kind of full-automatic constant speed fly ash sampler, packet
Probe tube, sampling bottle, separator, union, compressed air adapter tube, emanate air ejector and pipe of emanating are included, the probe tube and is penetrated
Tracheae is connected on flue tube wall by installing fixed tube socket, and the probe tube is connected by electronic sampling valve with separator,
One end that sampling cavity pressure sensor is connected to differential pressure transmitter is set in the electronic sampling valve and the connecting pipe of separator,
The other end of the differential pressure transmitter is connected on flue pressure sensor；
Pressure regulator valve is arranged in the left side of the compressed air adapter tube, and the pressure regulator valve is connected with electronic intake valve, described electronic
The other end of intake valve is connected to air ejector of emanating, and the other end of the air ejector of emanating connects electronic blow down valve, described to emanate
Pipe one end is connected with electronic blow down valve, and the other end is extend into flue；The electronic blow down valve, electronic intake valve, electronic sampling
Valve is connected with control cabinet respectively.
Preferably, spaced set sampling hole on the probe tube, and the direction of sampling hole alignment flue gas stream is arranged.
Preferably, liquid crystal touch screen and power supply, start stop operation button are set on the control cabinet.
Preferably, the probe tube and electronic sampling valve, separator and air ejector of emanating, electronic blow down valve and pumping of emanating
It is connected by union between device, electronic intake valve and air ejector of emanating.
Compared with prior art, the utility model has the beneficial effects that the full-automatic constant speed fly ash sampler of the utility model
It is that impacting type sampler and product is replaced to fall the novel product of formula sampler, for power plant, a automation of power station flue sampling
Equipment, it has spot sampling, and timing sampling can be realized probe tube isokinetic sampling, can set by being simply provided
It is any sample time, available relatively accurate in this way without waiting for easy to operate, differential pressure measurement in increase flue and sampling gun
, representative flue gas flying dust, so that unburned carbon in flue dust is obtained accurate detection, provided for the scientific algorithm of boiler thermal efficiency
Reliable foundation.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is circuit connection diagram in the utility model control cabinet；
In figure: 1 probe tube, 2 sampling bottles, 3 separators, 4 unions, 5 compressed airs adapter tube, 6 electronic intake valves, 7 pressure regulation
Valve, 8 emanate air ejector, 9 electronic blow down valves, 10 emanate pipe, 11 electronic sampling valves, 12 fixed tube sockets, 13 sampling cavity pressures are installed
Sensor, 14 differential pressure transmitters, 15 control cabinets, 16 flues, 17 flue pressure sensors.
Specific embodiment
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 describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of full-automatic constant speed fly ash sampler, including
Probe tube 1, sampling bottle 2, separator 3, union 4, compressed air adapter tube 5, emanate air ejector 8 and pipe 10 of emanating, the sampling
Pipe 1 and pipe 10 of emanating are connected on 16 tube wall of flue by installing fixed tube socket 12, and the probe tube 1 passes through electronic sampling valve 11
It is connected with separator 3, sampling cavity pressure sensor 13 is set in the electronic sampling valve 11 and the connecting pipe of separator 3 and is connected
It is connected to one end of differential pressure transmitter 14, the other end of the differential pressure transmitter 14 is connected on flue pressure sensor 17；It is described
Pressure regulator valve 7 is arranged in the left side of compressed air adapter tube 5, and the pressure regulator valve 7 and electronic intake valve 6 connect, the electronic intake valve 6
The other end is connected to air ejector 8 of emanating, and the other end of the air ejector 8 of emanating connects electronic blow down valve 9, the pipe 10 1 of emanating
End and the connection of electronic blow down valve 9, the other end are extend into flue 16；The electronic blow down valve 9, electronic intake valve 6, electronic sampling
Valve 11 is connected with control cabinet 15 respectively；Spaced set sampling hole on the probe tube 1, and by sampling hole alignment flue gas stream side
To setting；Liquid crystal touch screen and power supply, start stop operation button are set on the control cabinet 15；The probe tube 1 and electronic sampling
Valve 11, separator 3 and air ejector 8 of emanating, electronic blow down valve 9 and air ejector 8 of emanating, electronic intake valve 6 and emanate air ejector 8 it
Between connected by union 4.
Utility model works principle: in 16 pipeline of flue, when the flow velocity of flying dust is equal to flying dust flow velocity in sampling gun, into
Row Fly ash sampling is just representative.And sampler can automatically adjust so that the sampling process moment is all constant speed.Flue gas
After stream enters sampling hole, negative pressure ventilation is formed using compressed air and is acted on, by probe tube 1, enters rotation along wall tangential direction
Wind molecular separator 3, then rotated from top to down along wall, in rotary course, flying dust is thrown to wall because gravity inertial acts on
On, and fall into the grey funnel of collection by gravity along wall and enter sampling bottle 2.When flue gas flow rate is 6m/s--14m/s range, etc.
Fast sampling rate > 95%, sampler compressed air does power source, it can be achieved that operation free of discontinuities, in unit load 70 ~/F--100% model
In enclosing, there is constant speed regulatory function.
Isokinetic sampling is to import differential pressure transmitter by pressure, pressure at both sides in 16 pressure of measurement flue, and measurement probe tube 1
14, it is controlled by pressure regulator valve 7, allows pressure at both sides in same numerical value, realize isokinetic sampling.
In sampling process, first carries out pipeline blowback and sweeps, previous sample pipe residual sample is blown off, electronic intake valve 6 is opened,
Electronic sampling valve 11 closes electronic blow down valve 9, after purged, enters sample phase after opening electronic blow down valve 9, according to differential pressure
14 signal of transmitter adjusts electronic 6 aperture of intake valve, realizes isokinetic sampling.Electronic blow down valve 9 is turned off after sampling, is carried out anti-
Purging, closes other valves, entire sampling process terminates.
Timing sampling is to can according to need any setting sampling interval time, improves measurement boiler fly ash monitoring frequency,
The sufficiently operating condition of reflection boiler combustion each period.
The utility model mainly controls three motor-driven valves, is respectively used to control gas original and enters, sampling, purges.System is automatic
When operation, it should ensure that external gas supply is normal, power supply is normal, and control cabinet operation includes two kinds of operation moulds of manual mode and automatic mode
Formula.Under manual mode, user can be individually operated to every actuator；Under automatic mode, system can be sampled automatically, and be set
There is idle function to realize continuous sampling function.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ",
The terms such as " fixation ", " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or at one
Body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the interaction relationship of connection or two elements inside two elements, unless otherwise restricted clearly, for this field
Those of ordinary skill for, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of full-automatic constant speed fly ash sampler, including probe tube (1), sampling bottle (2), separator (3), union (4), pressure
Contracting air takes over (5), air ejector of emanating (8) and pipe of emanating (10), it is characterised in that: the probe tube (1) and pipe of emanating (10)
It is connected on flue (16) tube wall by installing fixed tube socket (12), the probe tube (1) is by electronic sampling valve (11) and divides
It is connected from device (3), sampling cavity pressure sensor is set in the connecting pipe of the electronic sampling valve (11) and separator (3)
(13) it is connected to one end of differential pressure transmitter (14), the other end of the differential pressure transmitter (14) is connected to flue pressure sensor
(17) on；
Pressure regulator valve (7) are arranged in the left side of the compressed air adapter tube (5), the pressure regulator valve (7) and electronic intake valve (6) connection,
The other end of the electronic intake valve (6) is connected to air ejector of emanating (8), and the other end of the air ejector of emanating (8) connects electricity
Dynamic blow down valve (9), described pipe of emanating (10) one end and electronic blow down valve (9) connection, the other end are extend into flue (16)；It is described
Electronic blow down valve (9), electronic intake valve (6), electronic sampling valve (11) are connected with control cabinet (15) respectively.
2. a kind of full-automatic constant speed fly ash sampler according to claim 1, it is characterised in that: on the probe tube (1)
Spaced set sampling hole, and the direction of sampling hole alignment flue gas stream is arranged.
3. a kind of full-automatic constant speed fly ash sampler according to claim 1, it is characterised in that: on the control cabinet (15)
Liquid crystal touch screen and power supply, start stop operation button are set.
4. a kind of full-automatic constant speed fly ash sampler according to claim 1, it is characterised in that: the probe tube (1) and
Electronic sampling valve (11), separator (3) and air ejector of emanating (8), electronic blow down valve (9) and air ejector of emanating (8), electronic air inlet
It is connected by union (4) between valve (6) and air ejector of emanating (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821223838.7U CN208459090U (en) | 2018-08-01 | 2018-08-01 | A kind of full-automatic constant speed fly ash sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821223838.7U CN208459090U (en) | 2018-08-01 | 2018-08-01 | A kind of full-automatic constant speed fly ash sampler |
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| Publication Number | Publication Date |
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| CN208459090U true CN208459090U (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821223838.7U Active CN208459090U (en) | 2018-08-01 | 2018-08-01 | A kind of full-automatic constant speed fly ash sampler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286008A (en) * | 2019-08-13 | 2019-09-27 | 新中天环保股份有限公司 | A kind of self-priming fly ash sampling device |
| CN110763525A (en) * | 2019-10-16 | 2020-02-07 | 华电电力科学研究院有限公司 | Rotary fly ash sampling device and sampling method for coal-fired power plant |
| CN115628949A (en) * | 2022-10-01 | 2023-01-20 | 华能淮阴第二发电有限公司 | Fly ash sampling device for boiler flue |
-
2018
- 2018-08-01 CN CN201821223838.7U patent/CN208459090U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286008A (en) * | 2019-08-13 | 2019-09-27 | 新中天环保股份有限公司 | A kind of self-priming fly ash sampling device |
| CN110286008B (en) * | 2019-08-13 | 2022-02-11 | 新中天环保股份有限公司 | Self-suction type fly ash sampling device |
| CN110763525A (en) * | 2019-10-16 | 2020-02-07 | 华电电力科学研究院有限公司 | Rotary fly ash sampling device and sampling method for coal-fired power plant |
| CN115628949A (en) * | 2022-10-01 | 2023-01-20 | 华能淮阴第二发电有限公司 | Fly ash sampling device for boiler flue |
| CN115628949B (en) * | 2022-10-01 | 2023-09-12 | 华能淮阴第二发电有限公司 | Fly ash sampling device for boiler flue |
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