CN205607709U - Constant speed sampling device is mixed to matrix - Google Patents
Constant speed sampling device is mixed to matrix Download PDFInfo
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- CN205607709U CN205607709U CN201620455228.4U CN201620455228U CN205607709U CN 205607709 U CN205607709 U CN 205607709U CN 201620455228 U CN201620455228 U CN 201620455228U CN 205607709 U CN205607709 U CN 205607709U
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Abstract
The utility model discloses constant speed sampling device is mixed to matrix relates to one kind and is used for carminative solid particle thing of electric power, oil and chemical industry or gaseous pollutant on -line monitoring device. Its purpose is the constant speed sampling device is mixed to matrix in order to provide sample objective accuracy, convenient to use. The utility model discloses constant speed sampling device is mixed to matrix includes analytic unit and sampling unit, sampling unit includes constant speed circulation sampling device, constant speed circulation sampling device is including the sampling rifle, the mouth of pipe of the sampling pipe of sampling rifle is located inside the flue, the sampling pipe outside is provided with the pitot tube speed sensor, be connected with sampling pipeline on the body of a gun, the last sampling fan of installing of sampling pipeline, the air inlet and the gas outlet department of sampling fan respectively install a sampling solenoid valve, sampling pipeline's the other end connects with the import of blender and links to each other, the pipe diameter of the vertical pipe of blender is the same with the pipe diameter sum of each sampling pipe, length equals the length of ten times of sampling pipes, vertical tub of lower part is provided with secondary sampling pipeline.
Description
Technical field
This utility model relates to solid particulate matter or gaseous contaminant monitoring technical field, particularly relates to a kind of for electric power, stone
Oil and the solid particulate matter of chemical industry aerofluxus or gaseous contaminant on-Line Monitor Device.
Background technology
At present, the sampling apparatus of all flue gas in power station boiler solid particulate matters or gaseous contaminant monitoring system all uses single-point to sample
Mode, use environment and the condition of the design of this sample mode are can accurately to measure under the conditions of uniform flow field or relatively uniform flow field
Flue gas particles or the concentration of gaseous contaminant.But owing to domestic large-sized station boiler flue is due to technique and space restriction etc.
Reason, flue is arranged that complexity, narrow space, straight length are shorter, is extremely difficult to uniform flow field or the straight length in relatively uniform flow field
Measuring condition (" in Concentration in Fixed Pollutants Source, solid particulate matter measures and the gaseous contaminant method of sampling " (GB/T16157-1996)
Should there is the flow development length of 6 times of equivalent diameters before requiring sampled measurements cross section, after measuring cross section, should have the straight tube of 3 times of equivalent diameters
Segment length).At present station boiler flue is the most all not up to the sampling condition of above-mentioned national regulations, its single-point sample mode relative to
The complexity of heavy in section flue gas duct and disorderly practical situation, occasionality that its sampling is layouted is very big, the sample being extracted from more without
Method represents this cross section particulate matter of flue or the mean concentration of pollutant, causes flue gas solid particulate matter or pollutant levels measurement data
Error is relatively big, cannot meet environmental administration's relevant criterion to particulate matter or the requirement of pollutant on-line monitoring system, also cannot make
For blowdown enterprise being carried out the lawful basis of collection of drainage dues.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of matrix form sampling objective and accurate, easy to use mixing constant speed and adopts
Sampling device.
This utility model matrix form mixing isokinetic sampling's device, including analytic unit and sampling unit, described sampling unit includes many
Set constant speed circulating sampling device, constant speed circulating sampling device includes that sampling gun, sampling gun include the body of a gun and sampling tube, sampling tube
The mouth of pipe is positioned at inside flue, is provided with pitot tube speed measuring device outside sampling tube, and the mouth of pipe of multiple sampling tubes is internal same at flue
Surrounding in cross section is uniformly distributed, and the mouth of pipe is towards direction of the wind comes from, and the body of a gun is positioned at outside flue, and the body of a gun connects sampling tube
Road, sampling conduit is provided with sampling blower fan, sampling blower fan is provided with converter, and converter can change turning of sampling blower fan
Speed, is respectively provided with a sampling electromagnetic valve, the other end of sampling conduit and blender at the air inlet of sampling blower fan and gas outlet
Inlet union is connected, and the tube wall below the inlet union of blender is long funnel-form, is VERTICAL TUBE, vertically below long funnel-form pipe
The caliber of pipe is identical with the caliber sum of each sampling tube, and the length of VERTICAL TUBE is more than the length of ten sampling pipes, and VERTICAL TUBE bottom sets
Being equipped with double sampling pipeline, double sampling pipeline one end is stretched into inside VERTICAL TUBE, and the other end is connected with the air inlet of analytic unit,
Distance between second sampling tube and VERTICAL TUBE upper end is the length of ten sampling pipes, the gas outlet of analytic unit phase internal with flue
Connection, is provided with blowback between sampling electromagnetic valve and the sampling gun matched at sampling fan air inlet and sweeps pipeline, anti-scavenging conduit
Being provided with blowback electromagnetic valve on road, the connection of the pipeline other end is swept in blowback back-blowing device, sampling electromagnetic valve and the work of blowback electromagnetic valve
Make state and controlled switching by PLC.
This utility model matrix form mixing isokinetic sampling's device, wherein said sampling tube uses the 316L rustless steel of a diameter of 25mm
Pipe.
This utility model matrix form mixing isokinetic sampling's device, wherein said sampling conduit outer wall is provided with heater and is dried
Device.
This utility model matrix form mixing isokinetic sampling's device, the lower end of wherein said long funnel-form pipe is provided with automatic ash removing rod,
Automatic ash removing rod can be around the axis of rotation being fixed in mixer inner walls.
This utility model matrix form mixing isokinetic sampling's device, passes through aerofluxus inside the gas outlet of wherein said analytic unit and flue
Pipe is connected, and being connected between the gas outlet of analytic unit and exhaustor has threeway, and threeway is also connected with the bottom of VERTICAL TUBE.
This utility model matrix form mixing isokinetic sampling's device, the pressure that the purging pressure of wherein said back-blowing device is slightly above in flue
Power.
This utility model matrix form mixing isokinetic sampling's device, wherein said source purge gas uses compressed air.
This utility model matrix form mixing isokinetic sampling's device, during the switching action of wherein said sampling electromagnetic valve and blowback electromagnetic valve
Between be respectively less than 1s, its valve body is all sampled Stainless steel 316 L.
This utility model matrix form mixing isokinetic sampling's device difference from prior art is this utility model matrix form mixing etc.
Speed sampling apparatus is provided with double sampling, and when once sampling, converter records by being arranged on pitot tube speed measuring device on sampling tube
Wind velocity signal adjust the rotating speed of sampling blower fan, make among the wind speed once sampled and flue identical.The gas once sampled enters
After blender, in the VERTICAL TUBE of blender, carry out current-sharing and double sampling.The diameter of VERTICAL TUBE and the diameter of all sampling tubes
Sum is identical, it is ensured that wind speed time in the gas entrance VERTICAL TUBE once sampled is still identical with flue, it is ensured that sampling constant speed is entered
OK；Ten times of a length of sampling tube length of VERTICAL TUBE, had both met the length requirement of particulate matter detection front end, can make again sampling
Gas is more fully mixed.Being provided with double sampling pipeline in blender, be used for carrying out double sampling, double sampling is constant speed
Sampling, design is more reasonable, and sampled data is the most objective and accurate, more representative.It is also associated with blowback on sampling conduit to sweep
Pipeline, can periodically carry out blowback when not sampling and sweep, and the mouth of pipe or the sampling conduit blocking of sampling tube is greatly decreased, improves
Equipment operational reliability, avoids safeguarding, easy to use.
Below in conjunction with the accompanying drawings matrix form of the present utility model mixing isokinetic sampling's device is described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model matrix form mixing isokinetic sampling's device.
Detailed description of the invention
As it is shown in figure 1, this utility model matrix form mixing isokinetic sampling's device includes analytic unit 1 and sampling unit 3, sampling
Unit 3 includes overlapping constant speed circulating sampling device more.Constant speed circulating sampling device includes that sampling gun, sampling gun include the body of a gun and sampling
Pipe 10, the 316L stainless steel tube that wherein sampling tube 10 uses a diameter of 25mm thickness to be 2mm, the mouth of pipe position of sampling tube 10
Internal in flue 11, it is provided with pitot tube speed measuring device (being not drawn in figure) outside sampling tube 10.The pipe of multiple sampling tubes 10
Mouth surrounding in the internal same cross section of flue 11 is uniformly distributed, and the mouth of pipe is towards direction of the wind comes from.According to " stationary source is arranged
In gas, solid particulate matter measures and the gaseous contaminant method of sampling " requirement of (GB/T16157-1996) 4.2.4.2, by flue 11
Section is divided into suitable homalographic fritter, and Ge Kuai center is measuring point.Flue 11 cross section is divided into homalographic by the present embodiment
Four rectangles, the mouth of pipe of four sampling tubes 10 lays respectively at the center of four rectangles, so makes sampling have more objectivity and representative
Property.The body of a gun is positioned at outside flue 11, on the body of a gun connect have sampling conduit 7, sampling conduit 7 outer wall is provided with heater and
Drying device, in keeping sampling conduit 7, flue-gas temperature is not less than 180 DEG C.Sampling blower fan 4, sampling are installed on sampling conduit 7
Being provided with converter on blower fan 4, converter can change the rotating speed of sampling blower fan 4, the air inlet of sampling blower fan 4 and gas outlet
Place is respectively provided with a sampling electromagnetic valve 5.The other end of sampling conduit 7 is connected with the inlet union of blender 2, blender 2
Inlet union below tube wall be long funnel-form, the lower end of long funnel-form pipe is provided with automatic ash removing rod 16, automatic ash removing rod 16
Can be around the axis of rotation being fixed on blender 2 inwall.It is VERTICAL TUBE 14 below long funnel-form pipe, the caliber of VERTICAL TUBE 14
Identical with the caliber sum of each sampling tube 10, so can ensure that flue gas flow rate is close to the mean flow rate of flue 11 in blender 2,
Improve objectivity and the representativeness of double sampling.The length of VERTICAL TUBE 14, more than the length of ten sampling pipes 10, so can make
Sample gas is flow speed stability in VERTICAL TUBE 14, it is simple to carry out double sampling.VERTICAL TUBE 14 bottom is provided with double sampling pipeline
15, it is internal that VERTICAL TUBE 14 is stretched in double sampling pipeline 15 one end, and the other end is connected with the air inlet of analytic unit 1, and second adopts
Distance between sample pipe 10 and VERTICAL TUBE 14 upper end is the length of ten sampling pipes 10.The gas outlet of analytic unit 1 and flue
The 11 internal exhaustors 12 that pass through are connected, and being connected between the gas outlet of analytic unit 1 with exhaustor 12 has threeway 13, threeway
13 also bottoms with VERTICAL TUBE 14 are connected.It is easy to the gas after analysis being completed be discharged downstream in flue 11.
It is provided with blowback between sampling electromagnetic valve 5 and the sampling gun matched at sampling blower fan 4 air inlet and sweeps pipeline 9, blowback
Sweeping and be provided with blowback electromagnetic valve 6 on pipeline 9, the connection of pipeline 9 other end is swept in blowback back-blowing device 8.Purging pressure can be according to cigarette
The instant pressure in this cross section in road 11, slightly above this pressure purges, and reduces the interference to neighbouring sample operating point.Source purge gas
Station-service compressed air can be used to use after entering surge tank after pressure regulation, it is ensured that pressure stability.
The duty of sampling electromagnetic valve 5 and blowback electromagnetic valve 6 is controlled switching, sampling electromagnetic valve 5 and blowback electromagnetism by PLC
The switching action time of valve 6 is respectively less than 1s, and its valve body is all sampled Stainless steel 316 L.
The material of above-mentioned all pipelines all uses Stainless steel 316 L.
The operation principle of this utility model matrix form mixing isokinetic sampling's device is as follows: when normally working, four set isokinetic sampling's devices
Sample in the way of constant speed tracking respectively, i.e. record the flow velocity of gas in flue 11 by pitot tube speed measuring device, by flow velocity
Data feedback to sampling blower fan 4 on arrange converter in, converter adjust sampling blower fan 4 rotating speed, make sample gas adopt
Flow velocity in sample pipeline 7 is the most identical with flue 11.Sample gas carries out secondary current-sharing in entering blender 2 afterwards, and leads to
Cross double sampling pipeline 15 and obtain final sample gas, be sent to analytic unit 1.
When certain sampling gun breaks down, such as situations such as sampling blower fan 4 tripping operations, can pass through to close sampling blower fan 4 air inlet/outlet
The sampling electrodynamic valve of mouth will appear from the sampling blower fan 4 of fault isolates, after the signal that is concurrently out of order carries out online Fast-Maintenance and maintenance
Put into operation again.User can carry out branch reverse blow work by default, it is ensured that sampling tube according to practical situation every day
Road 7 is totally, dust stratification and the steady in a long-term of system do not run.
Embodiment described above is only to be described preferred implementation of the present utility model, not to of the present utility model
Scope is defined, and on the premise of without departing from this utility model design spirit, those of ordinary skill in the art are to this utility model
The various deformation made of technical scheme and improvement, all should fall in the protection domain that this utility model claims determine.
Claims (8)
1. matrix form mixing isokinetic sampling's device, including analytic unit and sampling unit, it is characterised in that: described sampling is single
Unit includes overlapping constant speed circulating sampling device more, and constant speed circulating sampling device includes that sampling gun, sampling gun include the body of a gun and sampling tube,
The mouth of pipe of sampling tube is positioned at inside flue, is provided with pitot tube speed measuring device outside sampling tube, and the mouth of pipe of multiple sampling tubes is at flue
Surrounding in internal same cross section is uniformly distributed, and the mouth of pipe is towards direction of the wind comes from, and the body of a gun is positioned at outside flue, and the body of a gun connects
Having sampling conduit, sampling conduit is provided with sampling blower fan, sampling blower fan is provided with converter, converter can change sampling
The rotating speed of blower fan, is respectively provided with a sampling electromagnetic valve at the sampling air inlet of blower fan and gas outlet, the other end of sampling conduit with
The inlet union of blender is connected, and the tube wall below the inlet union of blender is long funnel-form, is vertical below long funnel-form pipe
Pipe, the caliber of VERTICAL TUBE is identical with the caliber sum of each sampling tube, and the length of VERTICAL TUBE is more than the length of ten sampling pipes, vertically
Pipe bottom is provided with double sampling pipeline, and double sampling pipeline one end is stretched into inside VERTICAL TUBE, the other end and the air inlet of analytic unit
Mouth connects, and the distance between the second sampling tube and VERTICAL TUBE upper end is the length of ten sampling pipes, the gas outlet of analytic unit and cigarette
It is connected inside road, is provided with blowback between sampling electromagnetic valve and the sampling gun matched at sampling fan air inlet and sweeps pipeline,
Blowback is swept and is provided with blowback electromagnetic valve on pipeline, and the connection of the pipeline other end is swept in blowback back-blowing device, sampling electromagnetic valve and blowback electricity
The duty of magnet valve is controlled switching by PLC.
Matrix form the most according to claim 1 mixing isokinetic sampling's device, it is characterised in that: described sampling tube uses diameter
316L stainless steel tube for 25mm.
Matrix form the most according to claim 1 mixing isokinetic sampling's device, it is characterised in that: on described sampling conduit outer wall
It is provided with heater and drying device.
Matrix form the most according to claim 1 mixing isokinetic sampling's device, it is characterised in that: under described long funnel-form pipe
End is provided with automatic ash removing rod, and automatic ash removing rod can be around the axis of rotation being fixed in mixer inner walls.
Matrix form the most according to claim 1 mixing isokinetic sampling's device, it is characterised in that: giving vent to anger of described analytic unit
Mouth is internal with flue to be connected by exhaustor, and being connected between the gas outlet of analytic unit and exhaustor has threeway, and threeway is also with perpendicular
The bottom of straight tube is connected.
Matrix form the most according to claim 1 mixing isokinetic sampling's device, it is characterised in that: the purging of described back-blowing device
Pressure is slightly above the pressure in flue.
Matrix form the most according to claim 1 mixing isokinetic sampling's device, it is characterised in that: described source purge gas uses pressure
Contracting air.
Matrix form the most according to claim 1 mixing isokinetic sampling's device, it is characterised in that: described sampling electromagnetic valve is with anti-
The switching action time blowing electromagnetic valve is respectively less than 1s, and its valve body is all sampled Stainless steel 316 L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620455228.4U CN205607709U (en) | 2016-05-17 | 2016-05-17 | Constant speed sampling device is mixed to matrix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620455228.4U CN205607709U (en) | 2016-05-17 | 2016-05-17 | Constant speed sampling device is mixed to matrix |
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| Publication Number | Publication Date |
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| CN205607709U true CN205607709U (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620455228.4U Active CN205607709U (en) | 2016-05-17 | 2016-05-17 | Constant speed sampling device is mixed to matrix |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018002A (en) * | 2016-05-17 | 2016-10-12 | 南京友智科技有限公司 | Matrix type mixed constant-speed sampling device |
-
2016
- 2016-05-17 CN CN201620455228.4U patent/CN205607709U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018002A (en) * | 2016-05-17 | 2016-10-12 | 南京友智科技有限公司 | Matrix type mixed constant-speed sampling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220415 Address after: 210000 Room 903, floor 9, block n, Himalayan business center, No. 3, Minzhi Road, Yuhua street, Yuhuatai District, Nanjing, Jiangsu Province Patentee after: Jiangsu Baoxin Technology Research Institute Co.,Ltd. Address before: 210012 west part and third floor of Building 9, Wangu mobile Internet technology park, No. 16, Xiaoxing Road, Yuhuatai District, Nanjing, Jiangsu Province Patentee before: NANJING YOUZHI TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |