CN110220116A - A kind of exhaust gas constant current processing system - Google Patents
A kind of exhaust gas constant current processing system Download PDFInfo
- Publication number
- CN110220116A CN110220116A CN201910483183.XA CN201910483183A CN110220116A CN 110220116 A CN110220116 A CN 110220116A CN 201910483183 A CN201910483183 A CN 201910483183A CN 110220116 A CN110220116 A CN 110220116A
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- CN
- China
- Prior art keywords
- vacuum
- air accumulator
- equipment
- dcs
- exhaust gas
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
Abstract
The present invention discloses a kind of exhaust gas constant current processing system, including buffering air accumulator, and the entrance for buffering air accumulator connects exhaust air discharge equipment, outlet by air inlet pipe and connects off-gas cleaning equipment by escape pipe；The tank body for buffering air accumulator is equipped with the first vacuum meter；The pipeline of escape pipe is successively arranged shut-off valve, vacuum pump and the second vacuum meter along outgassing direction；Pipeline between vacuum pump and the second vacuum meter is also connected with inflated with nitrogen equipment；Constant current processing system further includes DCS, and the first vacuum meter connect the input interface of DCS, the output interface connection vacuum pump and inflated with nitrogen equipment of DCS with the second vacuum meter；Exhaust air discharge equipment discharges exhaust gas to buffering air accumulator by air inlet pipe, and DCS keeps constant exhaust gas flow according to the operation of the vacuum degree control vacuum pump of buffering air accumulator；Meanwhile the vacuum degree of off-gas cleaning equipment front end that DCS is fed back according to the second vacuum meter, the operation of inflated with nitrogen equipment is controlled, off-gas cleaning equipment is made to maintain import step pressure.
Description
Technical field
The present invention relates to industrial waste gas treatment device technical field, specifically a kind of exhaust gas constant current processing system.
Background technique
Industrial waste gas refers to the gas containing pollutant that plant area, enterprise fuel combustion or technical process generate, usual work
Industry exhaust gas is needed before being discharged into atmosphere by emission-control equipment, carries out purified treatment to exhaust gas.
Industrial waste gas processing mode has following four at present:
One, the deleterious particle or tar in high-pressure electrostatic captured gas electric fishing method: are utilized.
Two, washing method: the harmful components in exhaust gas are absorbed or dissolved using water or other liquid.
Three, absorption method: being using porous solid dielectric or chemicals, by one of gas or Multicomponent, product
Poly- or condensation achievees the purpose that separation on surface.
Four, mainly by cloth bag, processing of gathering dust filtration method: is carried out to the dust in exhaust gas.
Above-mentioned four kinds of methods play an important role in gas purification in actual use process.But if industrial waste gas
In the case that there are wave crests and trough, and wave crest and trough differ greatly, the design of equipment is processed will be with the number of wave crest for amount discharge
According to as reference frame, the cost so as to cause equipment is excessively high and the operation and maintenance cost in later period increases, especially some
Special industry, the peak discharge of industrial waste gas may be tens times or even hundreds of times of valley discharge, it will cause at exhaust gas
It is excessively high to manage cost.
Summary of the invention
The purpose of the present invention is to provide a kind of exhaust gas constant current processing system, which can weaken the wave of discharge amount of exhaust gas
Peak and trough, average exhaust gas flow improve the treatment effeciency of exhaust treatment system, reduce exhaust-gas treatment cost.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of exhaust gas constant current processing system, including buffering air accumulator, the entrance for buffering air accumulator connect exhaust gas row by air inlet pipe
Equipment is put, the outlet for buffering air accumulator connects off-gas cleaning equipment by escape pipe；The tank body for buffering air accumulator is equipped with first very
Sky meter；The pipeline of escape pipe is successively arranged shut-off valve, vacuum pump and the second vacuum meter along outgassing direction；Vacuum pump and the second vacuum
Pipeline between meter is also connected with inflated with nitrogen equipment；
The constant current processing system further includes DCS, and the first vacuum meter connect the input interface of DCS with the second vacuum meter, and DCS's is defeated
Outgoing interface connects vacuum pump and inflated with nitrogen equipment；
Exhaust air discharge equipment discharges exhaust gas to buffering air accumulator by air inlet pipe, and the first vacuum meter will buffer the vacuum degree of air accumulator
DCS is fed back to, DCS keeps constant exhaust gas flow according to the operation of the vacuum degree control vacuum pump of buffering air accumulator；Meanwhile
The vacuum degree for the off-gas cleaning equipment front end that DCS is fed back according to the second vacuum meter controls the operation of inflated with nitrogen equipment, keeps exhaust gas net
Change equipment and maintains import step pressure.
The invention has the advantages that being cached by buffering air accumulator to the exhaust gas of discharge, when buffering air accumulator
When vacuum degree is too low, starts vacuum pump, exhaust gas is pumped into off-gas cleaning equipment and is handled, when the vacuum of buffering air accumulator is spent
Gao Shi, then stopping vacuum pump, buffering air accumulator continues to cache exhaust gas, to balance wave crest and trough bring shadow when exhaust
It rings, keeps constant exhaust gas flow；If the vacuum degree of off-gas cleaning equipment front end is lower, DCS controls inflated with nitrogen equipment
It is filled with nitrogen to escape pipe, off-gas cleaning equipment is avoided the phenomenon that negative pressure is backflowed occur.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is system principle diagram of the invention.
Specific embodiment
As shown in Figure 1, the present invention provides a kind of exhaust gas constant current processing system, including buffering air accumulator 1, air accumulator 1 is buffered
Entrance by air inlet pipe 2 connect exhaust air discharge equipment 3, buffering air accumulator 1 outlet by escape pipe 4 connection waste gas purification set
Standby 5；It buffers and is equipped with the first vacuum meter 7 at the top of air accumulator 1；The pipeline of escape pipe 4 is successively arranged shut-off valve 8, true along outgassing direction
Sky pump 9 and the second vacuum meter 10；Pipeline between vacuum pump 9 and the second vacuum meter 10 is also connected with inflated with nitrogen equipment 11.
The constant current processing system further includes DCS12, and the first vacuum meter 7 connect the input of DCS12 with the second vacuum meter 10
Interface, the output interface connection vacuum pump 9 and inflated with nitrogen equipment 11 of DCS12.
Exhaust air discharge equipment 3 discharges exhaust gas to buffering air accumulator 1 by air inlet pipe 2, and buffering air accumulator 1 delays exhaust gas
It deposits, 7 real-time detection of the first vacuum meter buffers the vacuum degree in air accumulator 1, and the vacuum degree for buffering air accumulator is fed back to
DCS12, DCS12 according to buffering air accumulator vacuum degree control vacuum pump 9 operation；Specifically, when buffering air accumulator it is true
When reciprocal of duty cycle is lower than setting value, namely the exhaust gas in buffering air accumulator is excessive, then starting vacuum pump 9, vacuum pump 9 will buffer gas storage
Exhaust gas in tank 1 pumps to off-gas cleaning equipment 5 and carries out purified treatment；When the vacuum degree for buffering air accumulator 1 is higher than setting value,
The exhaust gas buffered in air accumulator is very few, then stopping vacuum pump 9, buffering air accumulator 1 continues to cache exhaust gas；Using buffering gas storage
Tank 1 is simultaneously influenced in conjunction with vacuum pump 9 come wave crest when balancing exhaust and trough bring, keeps constant exhaust gas flow.
At the same time, the vacuum degree for 5 front end of off-gas cleaning equipment that DCS12 is fed back according to the second vacuum meter 10, control are filled
The operation of nitrogen gas preparing 11, namely when the value of feedback of the second vacuum meter 10 is too low, start inflated with nitrogen equipment 11, to waste gas purification
5 import of equipment is passed through nitrogen, to maintain the operating pressure of 5 import of off-gas cleaning equipment, avoids the occurrence of the reflux of exhaust gas negative pressure
Phenomenon.
Traditional foundation electric fishing method, washing method, absorption method or filtration method preparation can be used in off-gas cleaning equipment 5 of the invention
Off-gas cleaning equipment, the of the invention constant flow rate processing for focusing on exhaust gas do not limit off-gas cleaning equipment 5 specifically
System.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form；Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the side of the disclosure above
Method and technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalent reality of equivalent variations
Apply example.Therefore, anything that does not depart from the technical scheme of the invention according to the technical essence of the invention do above embodiments
Any simple modification, equivalent replacement, equivalence changes and modification, all of which are still within the scope of protection of the technical scheme of the invention.
Claims (1)
1. a kind of exhaust gas constant current processing system, which is characterized in that including buffering air accumulator, the entrance for buffering air accumulator passes through air inlet
Pipe connects exhaust air discharge equipment, and the outlet for buffering air accumulator connects off-gas cleaning equipment by escape pipe；Buffer the tank of air accumulator
Body is equipped with the first vacuum meter；The pipeline of escape pipe is successively arranged shut-off valve, vacuum pump and the second vacuum meter along outgassing direction；Vacuum
Pipeline between pump and the second vacuum meter is also connected with inflated with nitrogen equipment；
The constant current processing system further includes DCS, and the first vacuum meter connect the input interface of DCS with the second vacuum meter, and DCS's is defeated
Outgoing interface connects vacuum pump and inflated with nitrogen equipment；
Exhaust air discharge equipment discharges exhaust gas to buffering air accumulator by air inlet pipe, and the first vacuum meter will buffer the vacuum degree of air accumulator
DCS is fed back to, DCS keeps constant exhaust gas flow according to the operation of the vacuum degree control vacuum pump of buffering air accumulator；Meanwhile
The vacuum degree for the off-gas cleaning equipment front end that DCS is fed back according to the second vacuum meter controls the operation of inflated with nitrogen equipment, keeps exhaust gas net
Change equipment and maintains import step pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483183.XA CN110220116B (en) | 2019-06-04 | 2019-06-04 | Waste gas constant current processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910483183.XA CN110220116B (en) | 2019-06-04 | 2019-06-04 | Waste gas constant current processing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110220116A true CN110220116A (en) | 2019-09-10 |
| CN110220116B CN110220116B (en) | 2021-04-06 |
Family
ID=67819798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910483183.XA Active CN110220116B (en) | 2019-06-04 | 2019-06-04 | Waste gas constant current processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110220116B (en) |
Citations (8)
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|---|---|---|---|---|
| CN101486918A (en) * | 2009-02-17 | 2009-07-22 | 北京海润川投资咨询有限公司 | Novel spouted circulating fluid bed timber rapid pyrolysis apparatus and technological process |
| CN101891191A (en) * | 2010-02-03 | 2010-11-24 | 通辽市鼎鑫蜂窝活性炭有限公司 | Waterproof soil matrix formed honeycomb activated carbon and production process thereof |
| US20110160920A1 (en) * | 2009-12-30 | 2011-06-30 | Orr David C | System and method for controlling fluid delivery |
| CN203191151U (en) * | 2012-12-21 | 2013-09-11 | 黄鸣 | Vacuum gauge automatic calibrating device |
| CN104638557A (en) * | 2015-03-06 | 2015-05-20 | 西安北鱼智能科技有限公司 | Gas purification method |
| CN104635776A (en) * | 2013-11-13 | 2015-05-20 | 中国科学院沈阳科学仪器股份有限公司 | Wide-range pressure control system and method applied to vacuum equipment |
| CN105004801A (en) * | 2015-06-17 | 2015-10-28 | 北京空间机电研究所 | Loop heat pipe ammonia working medium purity analysis device |
| CN107670078A (en) * | 2017-09-21 | 2018-02-09 | 武健 | Vacuum system and oxirane system and device |
-
2019
- 2019-06-04 CN CN201910483183.XA patent/CN110220116B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486918A (en) * | 2009-02-17 | 2009-07-22 | 北京海润川投资咨询有限公司 | Novel spouted circulating fluid bed timber rapid pyrolysis apparatus and technological process |
| US20110160920A1 (en) * | 2009-12-30 | 2011-06-30 | Orr David C | System and method for controlling fluid delivery |
| CN101891191A (en) * | 2010-02-03 | 2010-11-24 | 通辽市鼎鑫蜂窝活性炭有限公司 | Waterproof soil matrix formed honeycomb activated carbon and production process thereof |
| CN203191151U (en) * | 2012-12-21 | 2013-09-11 | 黄鸣 | Vacuum gauge automatic calibrating device |
| CN104635776A (en) * | 2013-11-13 | 2015-05-20 | 中国科学院沈阳科学仪器股份有限公司 | Wide-range pressure control system and method applied to vacuum equipment |
| CN104638557A (en) * | 2015-03-06 | 2015-05-20 | 西安北鱼智能科技有限公司 | Gas purification method |
| CN105004801A (en) * | 2015-06-17 | 2015-10-28 | 北京空间机电研究所 | Loop heat pipe ammonia working medium purity analysis device |
| CN107670078A (en) * | 2017-09-21 | 2018-02-09 | 武健 | Vacuum system and oxirane system and device |
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| CN110220116B (en) | 2021-04-06 |
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