CN204389243U - Pneumatic flue gas sampler - Google Patents
Pneumatic flue gas sampler Download PDFInfo
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- CN204389243U CN204389243U CN201520046562.XU CN201520046562U CN204389243U CN 204389243 U CN204389243 U CN 204389243U CN 201520046562 U CN201520046562 U CN 201520046562U CN 204389243 U CN204389243 U CN 204389243U
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- probe
- pipeline
- blowback
- mixing tank
- motorized valve
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Abstract
The utility model relates to a kind of pneumatic flue gas sampler, multiple probe is connected with mixing tank (1) respectively by the road, the structure of each probe is, probe cavity (CV) is connected to dilution tunnel (4), probe cavity (CV) connects mixing tank (1) through the first pipeline of this probe, first pipeline of this probe is provided with the first motorized valve (SV2), it is characterized in that: mixing tank (1) connects pneumatic withdrawal device (2).
Description
Technical field
The utility model relates to a kind of pneumatic flue gas sampler.
Background technology
Flue gas discharge continuous monitoring system (being called for short CMES) is in power industry, emission SO2, NOx that chemistry and petrochemistry are produced, it is the principal element causing acid rain, it is to human health, livestock and plant have very large harm, along with environmental protection dynamics is strengthened, flue-gas dust-removing and desulfurization technology people more and more pay attention to.In prior art, for the flue gas sampler of monitoring flue gas, mostly adopt vacuum pump or fan extracting high-temperature corrosion flue gas, can not provide uninterrupted operation, off and on, functional reliability is poor in data acquisition, and service life of equipment is short.
Utility model content
Goal of the invention of the present utility model is to provide a kind of pneumatic flue gas sampler, effectively can improve functional reliability, extension device serviceable life.
Realize the technical scheme of the present utility model object:
A kind of pneumatic flue gas sampler, multiple probe is connected with mixing tank (1) respectively by the road, the structure of each probe is, probe cavity (CV) is connected to dilution tunnel (4), probe cavity (CV) connects mixing tank (1) through the first pipeline of this probe, first pipeline of this probe is provided with the first motorized valve (SV2), it is characterized in that: mixing tank (1) connects pneumatic withdrawal device (2).
Be provided with heating arrangement in each probe cavity (CV), can heat sample gas; First pipeline of each probe connects mixing tank (1) through heat tracing pipe (3), and heat tracing pipe (3) skin is provided with resistive heater.
In each probe cavity (CV), the outlet of corresponding sample inserting tube (4) is provided with filtration unit;
Each probe cavity (CV) is also connected to the second pipeline, second pipeline is provided with the second motorized valve (SV1), second motorized valve (SV1) is provided with evacuation port, first pipeline of the second pipeline and this probe forms loop, and this loop heat tracing pipe (3) corresponding with this probe is communicated with;
Also be provided with blowback pipeline (5), blowback pipeline (5) is provided with blowback motorized valve (SV8), and blowback pipeline (5) connects the heat tracing pipe corresponding to each probe respectively.
Blowback pipeline (5) connects mixing tank (1) by blowback bye-pass (6), blowback bye-pass (6) is provided with blowback bye-pass motorized valve (SV10), mixing tank is corresponding is connected to the emptying motorized valve of blowback (SV9), and the emptying motorized valve of blowback (SV9) is provided with evacuation port.
The beneficial effect that the utility model has:
The utility model mixing tank connects pneumatic withdrawal device (i.e. vacuum generator), can realize running without interruption, data acquisition is continuous, the stability of effective raising work and reliability, utilize siphon principle to realize high-temperature flue gas to be separated, the serviceable life of effective extension device.The use of pneumatic withdrawal device, avoids the sampling of conventional use pump or fan and brings high cost, high maintenance amount; Pneumatic withdrawal device compares with pump, and pneumatic withdrawal device is more high temperature resistant, and the cigarette temperature of SCR side is general at 300-400 DEG C, and the heatproof of pump, generally below 100 DEG C, can not directly use; Pneumatic vacuum generator compares with blower fan, and the sizableness of pneumatic air ejector is in 1/100 of routine sampling blower fan, and it is extremely convenient to install, and blower fan takes up an area comparatively large, and will often clear up;
Be provided with heating arrangement in each probe cavity (CV) of the utility model, can heat sample gas; First pipeline of each probe connects mixing tank (1) through heat tracing pipe (3), and heat tracing pipe (3) skin is provided with resistive heater; In each probe cavity (CV), the outlet of corresponding sample inserting tube (4) is provided with filtration unit, effectively prevent flue dust blocking and Yin Wendu reduction generation condensation water problem, solve the problem of sampling under high temperature, Gao Chen, high humidity environment, further increase functional reliability.
The utility model is also provided with blowback pipeline (5), and blowback pipeline (5) is provided with blowback motorized valve (SV8), and blowback pipeline (5) connects the heat tracing pipe corresponding to each probe respectively; Blowback pipeline (5) connects mixing tank (1) by blowback bye-pass (6), blowback bye-pass (6) is provided with blowback bye-pass motorized valve (SV10), mixing tank is corresponding is connected to the emptying motorized valve of blowback (SV9), and the emptying motorized valve of blowback (SV9) is provided with evacuation port.The utility model can carry out blowback to probe, mixing tank, prevents the blocking of sampling thief gas circuit, further increases functional reliability.
Accompanying drawing explanation
Accompanying drawing is structure principle chart of the present utility model.
Embodiment
As shown in the figure, multiple probe is connected with mixing tank 1 respectively by the road, in the present embodiment, adopts 3 probes.Each probe cavity CV is connected to dilution tunnel 4, probe cavity CV connects mixing tank 1 through the first pipeline of this probe, first pipeline of this probe is provided with motorized valve SV2 (corresponding another two probes are respectively SV4, SV6), and mixing tank 1 connects pneumatic withdrawal device (i.e. vacuum generator) 2.
Be provided with heating arrangement in each probe cavity CV, can heat sample gas; First pipeline of each probe connects mixing tank 1 through heat tracing pipe 3, and heat tracing pipe 3 skin is provided with resistive heater.
In each probe cavity CV, the outlet of corresponding sample inserting tube 4 is provided with filtration unit.Each probe cavity CV is also connected to the second pipeline, second pipeline is provided with motorized valve SV1 (corresponding another two probes are respectively SV3, SV5), motorized valve SV1 (corresponding another two probes are respectively SV3, SV5) is provided with evacuation port, first pipeline of the second pipeline and this probe forms loop, and this loop heat tracing pipe 3 corresponding with this probe is communicated with;
Also be provided with blowback pipeline 5, blowback pipeline 5 is provided with blowback motorized valve SV8, and blowback pipeline 5 connects the heat tracing pipe corresponding to each probe respectively.Blowback pipeline 5 connects mixing tank 1 by blowback bye-pass 6, and blowback bye-pass 6 is provided with blowback bye-pass motorized valve SV10, and mixing tank is corresponding is connected to the emptying motorized valve SV9 of blowback, and the emptying motorized valve SV9 of blowback is provided with evacuation port.
The inflow point of corresponding mixing tank is also corresponding is provided with flow control valve FV1, FV2, FV3, and blowback pipeline 5 is provided with air strainer F2, and the connecting line of pneumatic vacuum generator is provided with air strainer F1, pressure regulator valve 7.
During work, the sample gas that 3 road dilution tunnels 4 gather, after the filtration devices in probe cavity CV, heating devices heat, converge and be delivered to mixing tank, during sampling, motorized valve SV2, SV4, SV6 open, and sample gas is extracted by pneumatic withdrawal device 2.When carrying out blowback probe, motorized valve SV1, SV2, SV3, SV4, SV5, SV6, SV8 open, and purge gas carries out blowback through blowback pipeline 5 to probe.When need to blowback mixing tank time, motorized valve SV1, SV3, SV5, SV8, SV9, SV10 open, purge gas (instrument air) carries out blowback through blowback pipeline 5 pairs of mixing tanks.During mixing tank calibration, motorized valve SV2, SV4, SV6, SV7 open.
Claims (5)
1. a pneumatic flue gas sampler, multiple probe is connected with mixing tank (1) respectively by the road, the structure of each probe is, probe cavity (CV) is connected to dilution tunnel (4), probe cavity (CV) connects mixing tank (1) through the first pipeline of this probe, first pipeline of this probe is provided with the first motorized valve (SV2), it is characterized in that: mixing tank (1) connects pneumatic withdrawal device (2).
2. pneumatic flue gas sampler according to claim 1, is characterized in that: be provided with heating arrangement in each probe cavity (CV), can heat sample gas; First pipeline of each probe connects mixing tank (1) through heat tracing pipe (3), and heat tracing pipe (3) skin is provided with resistive heater.
3. pneumatic flue gas sampler according to claim 2, is characterized in that: in each probe cavity (CV), the outlet of corresponding sample inserting tube (4) is provided with filtration unit;
Each probe cavity (CV) is also connected to the second pipeline, second pipeline is provided with the second motorized valve (SV1), second motorized valve (SV1) is provided with evacuation port, first pipeline of the second pipeline and this probe forms loop, and this loop heat tracing pipe (3) corresponding with this probe is communicated with;
Also be provided with blowback pipeline (5), blowback pipeline (5) is provided with blowback motorized valve (SV8), and blowback pipeline (5) connects the heat tracing pipe corresponding to each probe respectively.
4. pneumatic flue gas sampler according to claim 3, it is characterized in that: blowback pipeline (5) connects mixing tank (1) by blowback bye-pass (6), blowback bye-pass (6) is provided with blowback bye-pass motorized valve (SV10), mixing tank is corresponding is connected to the emptying motorized valve of blowback (SV9), and the emptying motorized valve of blowback (SV9) is provided with evacuation port.
5. according to the pneumatic flue gas sampler of claim 1-4 described in any one, it is characterized in that: probe adopts 3-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046562.XU CN204389243U (en) | 2015-01-23 | 2015-01-23 | Pneumatic flue gas sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046562.XU CN204389243U (en) | 2015-01-23 | 2015-01-23 | Pneumatic flue gas sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204389243U true CN204389243U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520046562.XU Active CN204389243U (en) | 2015-01-23 | 2015-01-23 | Pneumatic flue gas sampler |
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| CN (1) | CN204389243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021133189A1 (en) * | 2019-12-25 | 2021-07-01 | Schlumberger Technology Corporation | Gas samplers and related methods |
-
2015
- 2015-01-23 CN CN201520046562.XU patent/CN204389243U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021133189A1 (en) * | 2019-12-25 | 2021-07-01 | Schlumberger Technology Corporation | Gas samplers and related methods |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |