CN212932087U - CEMS multi-point mixing sampling probe - Google Patents
CEMS multi-point mixing sampling probe Download PDFInfo
- Publication number
- CN212932087U CN212932087U CN202021392314.8U CN202021392314U CN212932087U CN 212932087 U CN212932087 U CN 212932087U CN 202021392314 U CN202021392314 U CN 202021392314U CN 212932087 U CN212932087 U CN 212932087U
- Authority
- CN
- China
- Prior art keywords
- sampling
- probe
- flue gas
- cems
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a CEMS multiple spot mixes sampling probe belongs to the flue gas probe field, and a plurality of sampling probe assemble in air mixing chamber through the pipeline, include: the probe body is provided with a cavity and is connected with a constant-temperature heat tracing pipeline; the first filter is arranged in the cavity; the sampling pipes are arranged at the air inlet of the probe body, the end part of each sampling pipe is provided with a sampling probe, the part of each sampling probe, which extends into the flue gas pipeline, is provided with a plurality of sampling ports, and each sampling port is provided with a second filter; every sampling tube is a preset angle and inserts in flue gas pipeline, and the length of every sampling tube is different, along the direction that the flue gas flows, the length of sampling tube increases gradually. The beneficial effects of the utility model reside in that: the sampling pipes with different lengths are inserted into the flue gas pipeline for a longer length, so that the number of flue gas sampling points is increased; the sampling probe is inserted into the flue gas pipeline at a certain angle, the sampling area is increased, and the accuracy and the reliability of the sample are improved.
Description
Technical Field
The utility model relates to a smoke probe field especially relates to a CEMS multiple spot mixes sampling probe.
Background
The CEMS is a device for continuously monitoring the concentration and the total emission amount of gaseous pollutants and particulate matters emitted from an atmospheric pollution source and transmitting information to a competent department in real time, and is called an automatic flue gas monitoring system, also called a continuous flue gas emission monitoring system or an online flue gas monitoring system. The smoke detection is used as a judgment basis for the qualified smoke treatment, and the accuracy and the reliability of the smoke detection become important points concerned in the field nowadays.
At present, due to the limitation of the shape and the process of a flue, the flue gas in a reducing flue presents a turbulent flow field, so that the flow of the flue gas close to the wall surface of the reducing flue is more disordered, the flow field distribution of the flue gas in the flue is uneven, stable and representative qualified flue gas is difficult to sample, and the measured value of the flue gas component has no representativeness; in addition, because sampling points are few and the length of the sampling probe inserted into the flue is short, the obtained flue gas sample has no representativeness, so that the flue gas detection after denitration has no accuracy and reliability; the sampling point is not representative, so that the environmental monitoring data is inaccurate, the normal uploading of the CEMS data is directly influenced, and the trouble is brought to the environmental protection work.
Disclosure of Invention
An object of the utility model is to provide a CEMS multiple spot mixes sampling probe, technical problem more than solving.
The utility model provides a technical problem can adopt following technical scheme to realize:
the utility model provides a CEMS multiple spot mixes sampling probe, a plurality of sampling probe assemble in air mixing chamber through the pipeline, sampling probe includes:
the probe comprises a probe body, a probe cover and a probe cover, wherein the probe body is provided with a cavity and is connected with a constant-temperature heat tracing pipeline;
a first filter disposed within the chamber;
the sampling pipes are arranged at the air inlet of the probe body, the end part of each sampling pipe is provided with a sampling probe, the part of the sampling probe, which extends into the flue gas pipeline, is provided with a plurality of sampling ports, and each sampling port is provided with a second filter;
every the sampling tube is a default angle and inserts and locate in the flue gas pipeline, every the length of sampling tube is different, along the direction that flue gas flows in the flue gas pipeline, the length of sampling tube increases gradually.
Preferably, the gas outlet of the probe body is provided with a sampling pump and a float flowmeter in sequence.
Preferably, the sampling pump is a venturi pump.
Preferably, the sampling tube with the sampling probe passes through flange joint, the sampling tube with the kneck of sampling probe is equipped with the heating pipe.
Preferably, the temperature range of the heating pipe is [120 ℃, 200 ℃).
Preferably, the temperature of the heating tube is 140 ℃.
Preferably, every the sampling tube is fixed in through the sample fixing base the air inlet of probe body, the sample fixing base with be equipped with the sealing washer between the probe body.
Preferably, the air outlet of the probe body is connected with a purging device through a purging pipeline, and a one-way back-flushing electromagnetic valve is arranged on the purging pipeline.
Preferably, the preset angle is 30 degrees obliquely downward.
Preferably, the air outlet of the sampling probe is provided with a manual stop valve and a pneumatic stop valve.
The utility model discloses technical scheme's beneficial effect lies in:
the CEMS multi-point mixed sampling probe is provided, the sampling body is provided with a plurality of sampling tubes with different lengths, so that the sampling tubes are longer in length when being inserted into a flue gas pipeline, sampling points of flue gas are increased, and the accuracy and reliability of a flue gas sample are improved; meanwhile, the flue gas collected by the plurality of sampling probes is collected in the mixing air chamber, so that the flue gas collected by each sampling point can be fully mixed in the mixing air chamber, and the accuracy and the reliability of the sample are further improved; meanwhile, the sampling probe is inserted into the flue gas pipeline at a preset angle, so that the area of flue gas sampling is increased, and the reliability of sampled flue gas is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a sampling probe according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
The utility model provides a CEMS multiple spot mixes sampling probe belongs to the smoke detector field, as shown in fig. 1 to fig. 2, a plurality of sampling probe assemble in air mixing chamber through the pipeline, and sampling probe includes:
the probe comprises a probe body 1, wherein the probe body 1 is provided with a cavity 12, and the probe body 1 is connected with a constant-temperature heat tracing pipeline 11;
a first filter 13 disposed within the chamber 12;
the sampling pipes 2 are arranged at the air inlet of the probe body 1, a sampling probe 21 is arranged at the end part of each sampling pipe 2, a plurality of sampling ports are formed in the parts, deep into the flue gas pipeline 7, of the sampling probes 21, and each sampling port is provided with a second filter;
every sampling tube 2 is a predetermined angle and inserts and locate flue gas pipeline 7 in, and the length of every sampling tube 2 is different, along the direction that flue gas flows in flue gas pipeline 7, the length of sampling tube 2 increases gradually.
Specifically, in this embodiment, the CEMS sampling probe includes a probe body 1 and a plurality of sampling tubes 2 with different lengths, which are disposed at an air inlet of the probe body 1, a first filter 13 is disposed in a cavity 12 of the probe body 1, the first filter 13 is arc-shaped, and two ends of the first filter surround an interface between the sampling tube 2 and the probe body 1, so that a flue gas sample can be filtered again by the first filter 13 when flowing to the cavity 12, to filter out impurities such as dust and particles in the flue gas, a sleeve is sleeved outside the probe body 1, the sleeve and an outer wall of the cavity 12 form a second cavity, a constant temperature heat tracing pipeline 11 is disposed in the second cavity, the cavity 12 is heated, and the flue gas is prevented from being cooled, so that unnecessary loss is caused; the air inlet of every sampling tube 2 is equipped with sampling probe 21, sampling probe 21's detection portion is along the direction that the flue gas flows and is predetermine the angle and stretch into in flue gas pipeline 7, make the area increase of flue gas sample, ensure the reliability of sample flue gas, a plurality of thief hatch has been seted up to the detection portion, thief hatch department is equipped with the second filter, carry out filtration treatment to the flue gas sample of sample, the dust in the filtering flue gas, impurity such as particulate matter, preferred in this embodiment, 1 air inlet of probe body is provided with 3 sampling tubes 2, 3 length of sampling tube 2 increases in proper order, be a word arrangement or be the triangle arrangement, make sampling tube 2 insert flue gas pipeline 7's length longer, the sampling point of flue gas has been increased simultaneously, wherein the arrangement of a plurality of sampling tubes 2 does not do the injecture, can set for according to actual need.
As preferred embodiment, this CEMS multiple spot mixes sampling probe, wherein the gas outlet of probe body 1 is equipped with sampling pump 3 in proper order, float flowmeter 8, wherein sampling pump 3 adopts the venturi pump, sampling probe is under the effect of venturi pump, the flue gas sample is in the cavity 12 of probe body 1 is got into by inserting sampling tube 2 in flue gas pipeline 7, carry out the gas outlet of secondary filter flow direction probe body 1 through first filter 13, float flowmeter 8 adopts the glass material, the glass material is corrosion-resistant, certain thermal insulation performance has, the flow of control flue gas that glass float flowmeter 8 can be accurate, make the flue gas carry out abundant mixture in can even mild inflow mixing gas chamber 6.
As preferred embodiment, this CEMS multiple spot mixes sampling probe, wherein sampling tube 2 and sampling probe 21 pass through flange 22 to be connected, the mode of connecting through flange 22 can make sampling probe 21 dismantle conveniently, be convenient for subsequent maintenance and maintenance, the kneck of sampling tube 2 and sampling probe 21 is equipped with the heating pipe, the heating pipe adopts endothermic material, high temperature in the usable flue gas pipeline 7 heats the second filter, the environmental protection also can adopt the heating wire to heat the second filter.
As a preferred embodiment, the CEMS multi-point hybrid sampling probe wherein the temperature of the heated tube is in the range of [120 ℃, 200 ℃), preferably wherein the optimal temperature of the heated tube is 140 ℃.
In a preferred embodiment, the CEMS multi-point hybrid sampling probe is characterized in that each sampling tube 2 is fixed to the air inlet of the probe body 1 through a sampling fixing seat 14, and a sealing ring is arranged between the sampling fixing seat 14 and the probe body 1.
Specifically, sample fixing base 14 and probe body 1's air inlet fixed connection are equipped with the sealing washer between sample fixing base 14 and the probe body 1, are equipped with the fixed orifices that can supply sampling tube 2 to alternate on the sample fixing base 14, sampling tube 2 and fixed orifices one-to-one, and sampling tube 2 and 14 interference fit of sample fixing base, are equipped with the sealing washer between sampling tube 2 and the fixed orifices, prevent that the flue gas from leaking, cause air pollution.
As a preferred implementation mode, the CEMS multi-point mixed sampling probe is characterized in that the air outlet of the probe body 1 is connected with the purging device 4 through a purging pipeline, a one-way back-blowing electromagnetic valve 53 is arranged on the purging pipeline, back-blowing cleaning is carried out on the interior of the pipeline after the probe body is used, the accuracy of a flue gas sample is improved, and the service life of the sampling probe is prolonged.
As a preferred embodiment, the CEMS multipoint mixing sampling probe is provided with a preset angle of 30 degrees downwards in an inclined mode, so that the flow of smoke is conformed, and the accuracy of smoke sampling is guaranteed.
In a preferred embodiment, the CEMS multi-point mixing sampling probe is provided with a manual stop valve 51 and a pneumatic stop valve 52 at the air outlet of the sampling probe, and the manual stop valve 51 and the pneumatic stop valve 52 are arranged in parallel, so that the collection of the flue gas sample can be controlled through the stop valves.
A specific example is now provided to explain and explain the present technical solution:
inserting 3 sampling probes into a flue gas pipeline 7 in a downward inclined manner by 30 degrees, connecting a gas outlet of each sampling probe to a mixed gas chamber 6 through a pipeline, opening a manual stop valve 51 and a pneumatic stop valve 52 of the gas outlet of each sampling probe before collecting a flue gas sample, opening a one-way back-blowing electromagnetic valve 53 on a purging pipeline, purging the whole device by purging gas in a purging device 4 through the purging pipeline, and removing impurities; after the sweeping is finished, close the one-way blowback solenoid valve 53 that is close to the device 4 that sweeps, under the effect of venturi pump, the flue gas in the flue gas pipeline 7 is gathered to 9 flue gas sampling probe 21 of 3 sampling probe, the flue gas sample is by inserting 9 sampling probe 21 in the flue gas pipeline 7 entering corresponding sampling tube 2, carry out the primary filtration through the second filter, most dust in the filtering flue gas, impurity such as particulate matter, get into cavity 12 from the air inlet of probe body 1 in, carry out the secondary filtration through first filter 13, behind the remaining impurity of filtering, flow direction probe body 1's gas outlet, flow of flue gas is controlled through adjusting glass float flowmeter 8, make the even gentle inflow of flue gas carry out abundant mixing in the gas mixing chamber 6, obtain accurate reliable flue gas sample, send the flue gas sample to flue gas analyzer and carry out flue gas analysis.
The utility model discloses technical scheme's beneficial effect lies in:
the CEMS multi-point mixed sampling probe is provided, the sampling body is provided with a plurality of sampling tubes with different lengths, so that the sampling tubes are longer in length when being inserted into a flue gas pipeline, sampling points of flue gas are increased, and the accuracy and reliability of a flue gas sample are improved; meanwhile, the flue gas collected by the plurality of sampling probes is collected in the mixing air chamber, so that the flue gas collected by each sampling point can be fully mixed in the mixing air chamber, and the accuracy and the reliability of the sample are further improved; meanwhile, the sampling probe is inserted into the flue gas pipeline at a preset angle, so that the area of flue gas sampling is increased, and the reliability of sampled flue gas is ensured.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (10)
1. A CEMS multi-point hybrid sampling probe in which a plurality of sampling probes converge in a mixing chamber through a conduit, the sampling probe comprising:
the probe comprises a probe body, a probe cover and a probe cover, wherein the probe body is provided with a cavity and is connected with a constant-temperature heat tracing pipeline;
a first filter disposed within the chamber;
the sampling pipes are arranged at the air inlet of the probe body, the end part of each sampling pipe is provided with a sampling probe, the part of the sampling probe, which extends into the flue gas pipeline, is provided with a plurality of sampling ports, and each sampling port is provided with a second filter;
every the sampling tube is a default angle and inserts and locate in the flue gas pipeline, every the length of sampling tube is different, along the direction that flue gas flows in the flue gas pipeline, the length of sampling tube increases gradually.
2. A CEMS multipoint mixing sampling probe according to claim 1, wherein the outlet of the probe body is provided with a sampling pump and a float flowmeter in sequence.
3. A CEMS multi-point hybrid sampling probe according to claim 2, wherein said sampling pump is a venturi pump.
4. A CEMS multi-point hybrid sampling probe according to claim 1, wherein the sampling tube and the sampling probe are connected by a flange, and a heating tube is provided at an interface of the sampling tube and the sampling probe.
5. A CEMS multi-point hybrid sampling probe according to claim 4, wherein the heating tube has a temperature in the range [120 ℃, 200 ℃).
6. A CEMS multi-point hybrid sampling probe according to claim 4, wherein the heating tube temperature is 140 ℃.
7. A CEMS multi-point hybrid sampling probe according to claim 1, wherein each of the sampling tubes is secured to the inlet port of the probe body by a sampling mount, a sealing ring being provided between the sampling mount and the probe body.
8. A CEMS multi-point mixing sampling probe according to claim 1, wherein the gas outlet of the probe body is connected with a purging device through a purging pipeline, and a one-way back-flushing solenoid valve is arranged on the purging pipeline.
9. A CEMS multi-point hybrid sampling probe according to claim 1, wherein the predetermined angle is 30 degrees down.
10. A CEMS multi-point mixing sampling probe according to claim 1, wherein the gas outlet of the sampling probe is provided with a manual shut-off valve and a pneumatic shut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021392314.8U CN212932087U (en) | 2020-07-15 | 2020-07-15 | CEMS multi-point mixing sampling probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021392314.8U CN212932087U (en) | 2020-07-15 | 2020-07-15 | CEMS multi-point mixing sampling probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212932087U true CN212932087U (en) | 2021-04-09 |
Family
ID=75330200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021392314.8U Active CN212932087U (en) | 2020-07-15 | 2020-07-15 | CEMS multi-point mixing sampling probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212932087U (en) |
-
2020
- 2020-07-15 CN CN202021392314.8U patent/CN212932087U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107421790B (en) | Gaseous pollutant multi-point matrix mixed sampling device, sampling method thereof and blowback maintenance method | |
| CN215066412U (en) | Ammonia decomposition catalyst performance evaluation device of real flue gas | |
| CN107367403B (en) | Reliable-working multipoint high-temperature sample gas collecting system | |
| CN103940641B (en) | Denitrification apparatus matrix form multidraw system | |
| CN209132050U (en) | A kind of array multiple spot sampling smoke device | |
| CN210154881U (en) | Sampling system for filterable particles and condensable particles | |
| CN106018002A (en) | Matrix type mixed constant-speed sampling device | |
| CN204758358U (en) | Directly extract flue gas sampling device of formula CEMS system | |
| CN109520790A (en) | A kind of mounting structure of denitration outlet flue gas gridding method mixing sampling apparatus | |
| CN215727140U (en) | Novel CEMS flue gas multiple spot sampling device | |
| CN206038385U (en) | Stationary source volatile organic compounds sampling probe | |
| CN103471876B (en) | Dilution sampling probe | |
| CN105865542A (en) | Integrated measuring device and method for smoke flow and pollutants | |
| JP2006226866A (en) | Exhaust gas sampling device | |
| CN101806679B (en) | Flue gas sampling device | |
| CN212932087U (en) | CEMS multi-point mixing sampling probe | |
| CN211205941U (en) | Differential pressure type flue gas gridding multi-point sampling device | |
| CN203849069U (en) | Matrix type multipoint sampling system for denitration device | |
| CN209372636U (en) | A kind of filter clogging effect verifying attachment | |
| CN218782247U (en) | Flue gas measurement system based on full section multiple spot sampling model | |
| CN116381135A (en) | Pollution emission monitoring system | |
| CN214251709U (en) | Flue gas sampling device, SCR reactor's flue gas monitoring system | |
| CN215525245U (en) | Mixed sampling system that inside mixture of flue | |
| CN214150046U (en) | Be used for SCR denitrification facility subregion net to measure sampling system | |
| CN115372210A (en) | System and method for testing particle size evolution of condensable particles under wet flue gas condition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |