CN201043975Y - Continuous monitoring system for fume emission - Google Patents
Continuous monitoring system for fume emission Download PDFInfo
- Publication number
- CN201043975Y CN201043975Y CNU2007201061239U CN200720106123U CN201043975Y CN 201043975 Y CN201043975 Y CN 201043975Y CN U2007201061239 U CNU2007201061239 U CN U2007201061239U CN 200720106123 U CN200720106123 U CN 200720106123U CN 201043975 Y CN201043975 Y CN 201043975Y
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- Prior art keywords
- gas
- monitoring system
- normal temperature
- valve
- flow path
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- 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.)
- Expired - Fee Related
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 239000003517 fume Substances 0.000 title 1
- 239000007789 gas Substances 0.000 claims abstract description 77
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003546 flue gas Substances 0.000 claims abstract description 21
- 238000005070 sampling Methods 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000000862 absorption spectrum Methods 0.000 claims description 2
- 238000004868 gas analysis Methods 0.000 abstract 1
- 238000009833 condensation Methods 0.000 description 12
- 230000005494 condensation Effects 0.000 description 12
- 238000012423 maintenance Methods 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004847 absorption spectroscopy Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- -1 sulphuric dioxide Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a continuous emission monitoring system which comprises a sampling pretreatment device, a heat tracing pipe, a gas flow path, a control subsystem and a gas analysis apparatus; the measured flue gas will be sent into the gas flow path and the control subsystem through the heat tracing pipe after going through the sampling pretreatment device; the gas flow path and the control subsystem comprise a heating working part and a normal temperature working part; the heating working part is provided with gas compartment, and the air inlet of gas compartment connects the heat tracing pipe; the normal temperature working part is provided with normal working parts. This utility model has the advantages of simple and compact structure, low cost and high measurement accuracy.
Description
Technical field
The utility model relates to a kind of flue gas discharge continuous monitoring system.
Background technology
At present, a kind of flue gas discharge continuous monitoring system commonly used comprises sampling pretreatment unit, heat tracing pipe, condensation de-watering apparatus, gas compartment, normal temperature service part and gas analyzing apparatus.The normal temperature service part comprises valve, membrane pump, described valve comprise zeroing with valve, demarcate with valve and blowback with valve etc.Described blowback is installed in before the described condensation de-watering apparatus with valve, is used for described sampling pretreatment unit is carried out blowback.Described zeroing is installed between described condensation de-watering apparatus and the gas compartment with valve with valve and demarcation, is used for described monitoring system is returned to zero and the timing signal use.Described membrane pump is installed in after the condensing unit before the gas compartment usually, is used to extract out the flue gas in the tested pipeline.Usually, described normal temperature service part, gas compartment, gas analyzing apparatus and condensation de-watering apparatus etc. are placed in one or more industrial racks, and this rack is placed in to be analyzed in the cabin.
The course of work of above-mentioned monitoring system is as follows: the flue gas in the tested pipeline is after the sampling of sampling pretreatment unit and filtering, send in the rack of monitoring system through heat tracing pipe again, condensation dewaters to gas sampled to be installed in condensation de-watering apparatus in the rack, and gas is admitted to gas compartment afterwards; Gas analyzing apparatus is measured in the gas compartment all gases component in the flue gas such as the concentration of sulphuric dioxide, nitrogen monoxide etc.
Said system mainly has the following disadvantages: 1) system architecture complexity, and poor reliability, maintenance workload is big, need to use the condensation de-watering apparatus, and the condensation de-watering apparatus comprises refrigerator, as compressor refrigerator or all multi-parts such as semiconductor cooler, water tank, inconvenience is installed; Used moving component simultaneously, as membrane pump; 2) cost is higher, needs to analyze cabin, has used than multi-part, has improved production cost and maintenance cost; 3) measuring accuracy is low, owing to used the condensation de-watering apparatus, some gas such as sulphuric dioxide, hydrogen chloride etc. can be dissolved in the condensate water in the condensation removal process, make measured smoke components be different from the composition in the tested pipeline, have strengthened the measuring error of monitoring system.
The utility model content
In order to solve above shortcomings in the prior art, the utility model provides the flue gas discharge continuous monitoring system that a kind of structure is simple, reliability is higher, maintenance workload is little, cost is lower, measuring accuracy is higher.
For achieving the above object, the utility model is by the following technical solutions:
A kind of flue gas discharge continuous monitoring system comprises sampling pretreatment unit, heat tracing pipe, gas flow path and control subsystem and gas analyzing apparatus; Tested flue gas is sent into described gas flow path and control subsystem through behind the described sampling pretreatment unit by heat tracing pipe; Described gas flow path and control subsystem comprise heating work part and normal temperature working portion, in the described heating work part gas compartment are installed, and the air intake opening of described gas compartment is communicated with described heat tracing pipe; The normal temperature service part is installed in the described normal temperature working portion.
Described normal temperature service part is zeroing with valve, demarcates with one or more with in valve and the solid-state relay of valve, blowback.
Described normal temperature service part is installed on the base plate of described normal temperature working portion, between the cavity of described base plate and described normal temperature working portion switching mechanism is installed.
Described switching mechanism is a hinge.
In the described heating work part ejector is installed also, described ejector is installed in the downstream of the gas outlet of described gas compartment.
In the described heating work part pneumatic valve is installed also, described pneumatic valve is installed on the gas circuit of described gas compartment air intake opening upstream; The solenoid valve of the described pneumatic valve of one control also is installed in the described normal temperature working portion.
In the described heating work part heating arrangement is installed.
Use optical fiber to be connected between described gas compartment and the gas analyzing apparatus.
Described gas analyzing apparatus is the ultra-violet absorption spectrum gas analyzing apparatus.
In the described heating work part oxygen measurement device or humidity measuring instrument are installed also.
Compared with prior art, the beneficial effect that the technical solution of the utility model has is: 1) structure is simply compact, volume is little, the reliability height, maintenance workload is little, saved the condensation de-watering apparatus, and be needing heater element and need not heater element to be installed separately, easy for installation; Use ejector simultaneously, substituted membrane pump with moving component; 2) cost is lower, has saved analysis cabin, rack and other numerous devices, has reduced production and system maintenance cost; 3) measuring accuracy is higher, according to the technical solution of the utility model, be directly to send the heated air chamber to measure, reduced the distortion that the sampling flue gas is caused by the absorption of condensation de-watering apparatus, dissolving, thereby improved measuring accuracy the pretreated tested flue gas of sampling.
Description of drawings
Fig. 1 is the structural representation of a kind of flue gas discharge continuous monitoring system of the present utility model;
Fig. 2 is the structural representation of another kind of flue gas discharge continuous monitoring system of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is done further detailed description.
Embodiment 1:
As shown in Figure 1, a kind of flue gas discharge continuous monitoring system comprises sampling pretreatment unit 202, heat tracing pipe 203, gas flow path and control subsystem 1 and gas analyzing apparatus 2.Described sampling pretreatment unit 202 is installed in the eminence of tested pipeline 201, and is connected with described gas flow path and control subsystem by described heat tracing pipe 203.
Described gas flow path and control subsystem 1 comprise two chambeies up and down, are heating work part 11 above, are normal temperature working portion 12 below, and the chamber wall of described heating chamber 11 is filled insulation with heat-barrier material such as asbestos (not shown).Described gas compartment 110 is installed in the described heating chamber 11, and the air intake opening of described gas compartment 110 is communicated with described heat tracing pipe 203; In the heating chamber 11 heating arrangement is installed, but the electric boiling plate 112 of pull for example is installed in the bottom of heating chamber 11, the gas compartment 110 in the heating chamber 11 is heated.Oxygen measurement device and humidity measuring instrument (all not shown) also are installed on the described gas compartment 110, and described oxygen measurement device is a zirconia sensor.Pneumatic valve 113 and ejector 111 also are installed in the heating chamber 11; Described pneumatic valve 113 is installed on the gas circuit of air intake opening upstream of described gas compartment 110, and described ejector 111 is installed on the gas circuit in downstream, gas outlet of described gas compartment 110.Described normal temperature service part comprises the solenoid valve 123 that is used to control described pneumatic valve 113, zeroing solenoid valve 121, demarcate solenoid valve 122, blowback solenoid valve 120 and solid-state relay, described normal temperature service part is installed on the base plate in the described normal temperature chamber 12, between described base plate and the described casing 1 switching mechanism is installed, described switching mechanism is a hinge, be used to realize the turning of base plate, be convenient to the described zeroing of installation and maintenance solenoid valve 121, demarcate solenoid valve 122, blowback solenoid valve 120, solenoid valve 123 and solid-state relay, described solid-state relay is used to control heat tracing pipe, the temperature of sampling pretreatment unit.
Described gas analyzing apparatus 2 is ultraviolet absorption spectroscopy devices, is installed in a side of described gas flow path and control subsystem 1, and is connected with described gas compartment 110 by optical fiber.
The annexation of each parts is in above-mentioned gas stream and the control subsystem 1: described blowback solenoid valve 120 is connected to by tracheae on the gas circuit of upstream of described pneumatic valve 113, and described zeroing is connected on the air intake opening and the gas circuit between the pneumatic valve 113 of described gas compartment 110 by tracheae respectively with solenoid valve 122 with solenoid valve 121, demarcation.
The course of work of above-mentioned flue gas discharge continuous monitoring system is: ejector 111 work in the heating chamber 11, flue gas in the tested pipeline 201 is through 202 samplings of sampling pretreatment unit, filtration, feed in the described heated gas compartment 110 by heat tracing pipe 203 then, described gas analyzing apparatus 2 is measured the concentration of gases such as sulphuric dioxide in the described heated air chamber 110, nitrogen monoxide.
After above-mentioned monitoring system is used a period of time, described sampling pretreatment unit 202 may stop up, at this moment need to close described pneumatic valve 113 by solenoid valve 123, blowback solenoid valve 120 is opened, the described sampling pretreatment unit 202 of blow-back that blowback this moment source of the gas provides.Above-mentioned monitoring system also needs to demarcate again after using a period of time, and close described pneumatic valve 113 by solenoid valve 123 this moment, and zeroing feeds in the described gas compartment 110 with gas or gas, and described gas analyzing apparatus 2 is demarcated.
Embodiment 2:
As shown in Figure 2, a kind of flue gas discharge continuous monitoring system, as different from Example 1, the normal temperature working portion is installed in independently in the casing 3.
It is pointed out that above-mentioned embodiment should not be construed as the restriction to the utility model protection domain.Be installed in the normal temperature chamber as normal temperature service part among the above-mentioned embodiment, can also split certainly and be installed in more than in one the normal temperature chamber; Described normal temperature service part can also be external outside heating chamber, for example is fixed on the outer base plate of heating chamber; Can also adopt other heating arrangements, such as electrical heating wire, Steam Heating etc. on the cloth in heating chamber.Key of the present utility model is, send into gas flow path and control subsystem after the flue gas process sampling pre-service in the tested pipeline, be divided into heating work part and normal temperature working portion in gas flow path and the control subsystem, need heater block such as the gas compartment in the described system and normal temperature service part are installed in heating work respectively partly and in the normal temperature working portion.Under the situation that does not break away from the utility model spirit, any type of change that the utility model is made all should fall within the protection domain of the present utility model.
Claims (10)
1. a flue gas discharge continuous monitoring system comprises sampling pretreatment unit, heat tracing pipe, gas flow path and control subsystem and gas analyzing apparatus; Tested flue gas is sent into described gas flow path and control subsystem through behind the described sampling pretreatment unit by heat tracing pipe; It is characterized in that: described gas flow path and control subsystem comprise heating work part and normal temperature working portion, in the described heating work part gas compartment are installed, and the air intake opening of described gas compartment is communicated with described heat tracing pipe; The normal temperature service part is installed in the described normal temperature working portion.
2. monitoring system according to claim 1 is characterized in that: described normal temperature service part is zeroing with valve, demarcates with one or more with in valve and the solid-state relay of valve, blowback.
3. monitoring system according to claim 1 and 2 is characterized in that: described normal temperature service part is installed on the base plate of described normal temperature working portion, between the cavity of described base plate and described normal temperature working portion switching mechanism is installed.
4. monitoring system according to claim 3 is characterized in that: described switching mechanism is a hinge.
5. monitoring system according to claim 1 and 2 is characterized in that: in the described heating work part ejector is installed also, described ejector is installed in the downstream of the gas outlet of described gas compartment.
6. monitoring system according to claim 1 and 2 is characterized in that: in the described heating work part pneumatic valve is installed also, described pneumatic valve is installed on the gas circuit of air intake opening upstream of described gas compartment; The solenoid valve of the described pneumatic valve of one control also is installed in the described normal temperature working portion.
7. monitoring system according to claim 1 and 2 is characterized in that: in the described heating work part heating arrangement is installed.
8. monitoring system according to claim 1 and 2 is characterized in that: use optical fiber to be connected between described gas compartment and the gas analyzing apparatus.
9. monitoring system according to claim 8 is characterized in that: described gas analyzing apparatus is the ultra-violet absorption spectrum gas analyzing apparatus.
10. monitoring system according to claim 1 and 2 is characterized in that: in the described heating work part oxygen measurement device or humidity measuring instrument are installed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201061239U CN201043975Y (en) | 2007-01-29 | 2007-01-29 | Continuous monitoring system for fume emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201061239U CN201043975Y (en) | 2007-01-29 | 2007-01-29 | Continuous monitoring system for fume emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201043975Y true CN201043975Y (en) | 2008-04-02 |
Family
ID=39258868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201061239U Expired - Fee Related CN201043975Y (en) | 2007-01-29 | 2007-01-29 | Continuous monitoring system for fume emission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201043975Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592669B (en) * | 2008-05-28 | 2012-11-14 | 宇星科技发展(深圳)有限公司 | Two-in-one cabinet of continuous flue gas monitoring system |
| CN103018075A (en) * | 2012-12-05 | 2013-04-03 | 北京航天益来电子科技有限公司 | Bypass built-in type diluting and sampling probe outside flue |
| CN106018703A (en) * | 2016-06-30 | 2016-10-12 | 力合科技（湖南）股份有限公司 | Flue gas analysis system and method |
| CN107748214A (en) * | 2017-11-20 | 2018-03-02 | 华电智控（北京）技术有限公司 | The pretreatment of volatile organic matter and analysis system |
-
2007
- 2007-01-29 CN CNU2007201061239U patent/CN201043975Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592669B (en) * | 2008-05-28 | 2012-11-14 | 宇星科技发展(深圳)有限公司 | Two-in-one cabinet of continuous flue gas monitoring system |
| CN103018075A (en) * | 2012-12-05 | 2013-04-03 | 北京航天益来电子科技有限公司 | Bypass built-in type diluting and sampling probe outside flue |
| CN103018075B (en) * | 2012-12-05 | 2015-10-07 | 北京航天益来电子科技有限公司 | The outer dilution sampling probe of the built-in flue of bypass |
| CN106018703A (en) * | 2016-06-30 | 2016-10-12 | 力合科技（湖南）股份有限公司 | Flue gas analysis system and method |
| CN107748214A (en) * | 2017-11-20 | 2018-03-02 | 华电智控（北京）技术有限公司 | The pretreatment of volatile organic matter and analysis system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JUGUANG TECHNOLOGY (HANGZHOU) LIMIT CO., LTD. Free format text: FORMER OWNER: WANG JIAN Effective date: 20090605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090605 Address after: Hangzhou City, Zhejiang Province, Binjiang District Lake Road 760, zip code: 310052 Patentee after: Spotlight Technology (Hangzhou) Co., Ltd. Address before: Hangzhou City, Zhejiang Province, Binjiang District Lake Road 1180 No. 3 Building 2 floor, zip code: 310052 Patentee before: Wang Jian |
|
| C56 | Change in the name or address of the patentee |
Owner name: FOCUSED PHOTONICS (HANGZHOU), LTD. Free format text: FORMER NAME: JUGUANG TECHNOLOGY (HANGZHOU) LIMIT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 760 Patentee after: Focused Photonics (Hangzhou) Inc. Address before: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 760 Patentee before: Spotlight Technology (Hangzhou) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080402 Termination date: 20130129 |