CN208382184U - A kind of VOCs waste-gas burning system - Google Patents
A kind of VOCs waste-gas burning system Download PDFInfo
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- CN208382184U CN208382184U CN201820672302.7U CN201820672302U CN208382184U CN 208382184 U CN208382184 U CN 208382184U CN 201820672302 U CN201820672302 U CN 201820672302U CN 208382184 U CN208382184 U CN 208382184U
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Abstract
The utility model discloses VOCs waste-gas burning systems, comprising: gas mixing tank is equipped with the first oxygen conten analyser for oxygen content inside detection gas blending tank at gas mixing tank；Gas inlet pipeline, gas inlet pipeline are connected to the inside of VOCs collection device and gas mixing tank；Booster fan, booster fan is arranged at gas inlet pipeline, for providing VOCs exhaust gas pressure difference；Source nitrogen is connected to by nitrogen pipeline, nitrogen pipeline with gas inlet pipeline, and flow regulator is equipped at nitrogen pipeline；Exhaust gas outlet pipe road and burner, exhaust gas outlet pipe road is respectively communicated with the inside of burner Yu gas mixing tank, pressure-regulating valve and differential pressure transmitter are equipped at exhaust gas outlet pipe road, differential pressure transmitter is connect between pressure-regulating valve and gas mixing tank and with pressure-regulating valve.The utility model can carry out safe combustion to the VOCs exhaust gas that VOCs collection device is discharged, and avoid generating the safety accidents such as explosion in whole process.
Description
Technical field
The utility model relates to the burn processing method technical fields of VOCs exhaust gas more particularly to a kind of VOCs exhaust gas to fire
Burning system.
Background technique
With volatile organic matter, the post-processing of abbreviation VOCs, VOCs are in industrial waste gas improvement increasingly by weight
Depending on.After the non-methane hydrocarbon emission limitation of milligram grade has been put into effect in various regions in succession (such as: Beijing < 100mg/m3, Shanghai <
70mg/m3), traditional VOCs complete recovering technique route using " renewable absorption " as latter end technique has been difficult long-term, steady
Determine, continuously meet emission request.Therefore, the process combination using the method for destroying as latter end will become the main of VOCs administration project
Selection.
Compared with VOCs recovery processing, destruction method is difficult to generate direct economic benefit, and scale of investment and operating cost
Also relatively high, these are all that destruction method is difficult the reason of promoting when environmental protection standard is more loose.But completely match for possessing
The large and medium-sized chemical company for covering facility, if existing burner, such as torch can be utilized under the premise of guaranteeing safety
System burns VOCs exhaust gas, then the cost of investment of newly added equipment, and hardly newly-increased energy consumption can be greatly reduced.
VOCs exhaust gas enters the key problem that burner burns and is safety.In view of being mixed in burner
The explosion limit of gas, such as flare system are needed for the oxygen content of the VOCs exhaust gas that is newly incorporated to torch pipe network and pressure etc.
Index is strictly limited.
Summary of the invention
The purpose of the utility model is to provide a kind of VOCs waste-gas burning systems, and VOCs collection device can be discharged
VOCs exhaust gas carries out safe combustion, avoids generating the safety accidents such as explosion in whole process.
The technical scheme that the utility model is provided is as follows:
A kind of VOCs waste-gas burning system, comprising: gas mixing tank is equipped at the gas mixing tank described for detecting
First oxygen conten analyser of oxygen content inside gas mixing tank；Gas inlet pipeline, the gas inlet pipeline are connected to VOCs
The inside of collection device and the gas mixing tank；Booster fan, the booster fan are arranged at the gas inlet pipeline,
For providing VOCs exhaust gas pressure difference；Nitrogen pipeline, source nitrogen is connected to by the nitrogen pipeline with the gas inlet pipeline, described
Flow regulator is equipped at nitrogen pipeline；Exhaust gas outlet pipe road and burner, the exhaust gas outlet pipe road are respectively communicated with institute
The inside of burner Yu gas mixing tank is stated, is equipped with pressure-regulating valve and differential pressure transmitter, institute at the exhaust gas outlet pipe road
Differential pressure transmitter is stated between the pressure-regulating valve and gas mixing tank and is connect with the pressure-regulating valve.
In above structure, the VOCs exhaust gas come out from VOCs collection device is pressurized by booster fan, has VOCs exhaust gas
There are enough pressure differences for resisting the pressure drop of follow-up equipment, guarantees that VOCs exhaust gas can smoothly advance.By in exhaust gas outlet pipe
Differential pressure transmitter is set at road, for detecting the pressure of the mixed gas at exhaust gas outlet pipe road, if the pressure mistake of mixed gas
Gao Shi adjusts pressure by pressure-regulating valve, the pressure of mixed gas is adjusted to desired value and is delivered at burner again, energy
Enough guarantee the danger that will not be exploded at burner.
Preferably, the burner is torch assembly.
There is unit since the torch pipe network of torch assembly includes the high-enriched organics conveyed from other equipment
Point, therefore, it is necessary to control the oxygen content of the mixed gas in input torch pipe network, guarantee to be not susceptible to explosion danger at torch assembly
Danger.
Preferably, the VOCs waste-gas burning system further include: between the VOCs collection device and nitrogen pipeline
Gas inlet pipeline at the second oxygen conten analyser；Control for Oxygen Content system, the Control for Oxygen Content system respectively with institute
State the first oxygen conten analyser, the second oxygen conten analyser is connected with flow regulator.
By the first oxygen conten analyser and the second oxygen conten analyser respectively in gas mixing tank and VOCs exhaust gas
Oxygen content is detected, and guarantees that the oxygen content for the mixed gas being passed through in burner meets the requirements, and avoids causing safety accident.
Unified control is carried out to the first oxygen conten analyser, the second oxygen conten analyser and nitrogen valve by setting Control for Oxygen Content system
System conveniently and saves human cost without manually operating from side.Control for Oxygen Content system contains according to preceding oxygen content signal with rear oxygen
Measure signal big minor adjustment flow regulator state, according to the actual situation control flow regulator opening, close or
Its aperture of person, guarantee the intracorporal oxygen content of gaseous mixture reach the standard that can be passed through burner, i.e. oxygen content whether less than 2%,
The safety being further ensured that at flare system.
Preferably, the VOCs waste-gas burning system further include: demister, the demister are set to the gas mixing
In tank.
Portion in above structure, since the temperature of nitrogen is lower, after nitrogen is mixed with VOCs exhaust gas, in VOCs exhaust gas
Divide volatile organic matter that may condense, therefore, demister is set at gas mixing tank, removes waving for the interior condensation of mixed gas
Hair property organic matter, to avoid occurring free property liquid in exhaust piping.Preferably, the VOCs waste-gas burning system also wraps
It includes: the fluid level transmitter being set on the gas mixing tank；Drain pipe, the bottom of the drain pipe and the gas mixing tank
It is connected to, tapping valve is equipped at the drain pipe, the tapping valve is connect with the fluid level transmitter.
In above structure, pass through the liquid of the volatile organic matter of the condensation in setting fluid level transmitter detection gas blending tank
Position height guarantees that the liquid level in gas mixing tank is lower than the 40% of gas mixing tank height, if liquid level is higher than 40%,
Tapping valve is then opened, the volatile organic matter of the condensation in gas mixing tank is discharged, otherwise easily causes entrained liquid, increase removes
The load of day with fog.
Preferably, the VOCs waste-gas burning system further include: what is be connected to the inside of the gas mixing tank promptly puts
Vacant duct is equipped with stop valve for the internal gas of gas mixing tank to be discharged at the emergency blow-down pipeline.
When differential pressure transmitter detect mixed gas pressure it is too high and be more than safe pressure when, pass through open stop valve will
The inside of gas mixing tank is connected to external environment, carries out pressure release to gas mixing tank, avoids that safety accident occurs.
Preferably, the stop valve is connect with the differential pressure transmitter.
By the way that differential pressure transmitter to be connect with stop valve, it can detect that the pressure of mixed gas is higher than in differential pressure transmitter
When safe pressure, signal is sent to stop valve automatically, to open stop valve, realizes the releasing pressure automatically of gas mixing tank.
Preferably, at the exhaust gas outlet pipe road be equipped with fire arrester, the fire arrester be set to the differential pressure transmitter with
Between burner；And/or check-valves is equipped at the exhaust gas outlet pipe road, the check-valves is set to the fire arrester and combustion
It burns between device.
Fire arrester is used for fiery condition barrier, and more equipment is avoided to be involved by fiery condition.Check-valves can prevent in burner
High-enriched organics organic component pass back into gas mixing tank.
A kind of VOCs waste-gas burning system provided by the utility model, can bring it is following the utility model has the advantages that
The VOCs waste-gas burning system of the utility model can carry out safety to the VOCs exhaust gas that VOCs collection device is discharged
Burning avoids generating the safety accidents such as explosion in whole process.VOCs exhaust gas is mixed to be less than to obtain oxygen content with nitrogen
Mixed gas equal to 2%, after guaranteeing that the mixed gas is passed through burner, burner be not easy to encounter Mars and burn or
Explosion.
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, to VOCs waste-gas burning system
Above-mentioned characteristic, technical characteristic, advantage and its implementation are further described.
Fig. 1 is the structural schematic diagram of the VOCs waste-gas burning system of the utility model.
Drawing reference numeral explanation:
1- gas inlet pipeline, 2- gas mixing tank, 3- nitrogen valve, 4- exhaust gas outlet pipe road, 5- emergency blow-down pipeline,
The first oxygen conten analyser of 6a-, the second oxygen conten analyser of 6b-, 7- Control for Oxygen Content system, 8- differential pressure transmitter, 9- pressure
Regulating valve, 10- fire arrester, 11- check-valves, 12- fluid level transmitter, 13- tapping valve, 14- nitrogen pipeline, 15- demister, 16-
Stop valve, 17-VOCs recovery unit, 18- booster fan, 19- fans entrance pressure transmitter, 20- torch pipe network, A-VOCs are useless
Gas, B- source nitrogen, C- discharge liquor, D- mixed gas, E- purified gas, F- recycle VOCs component.
Specific embodiment
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, attached drawing will be compareed below
Illustrate specific embodiment of the present utility model.It should be evident that the accompanying drawings in the following description is only the one of the utility model
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings, and obtains other embodiments.
To make simplified form, part relevant to the utility model is only schematically shown in each figure, they are simultaneously
Its practical structures as product is not represented.
[embodiment 1]
As shown in Figure 1, embodiment 1 discloses a kind of VOCs exhaust gas A combustion system, for the VOCs exhaust gas A that burns.Specifically
Include:
Gas mixing tank 2 is equipped with the oxygen for the mixed gas D inside detection gas blending tank 2 at gas mixing tank 2
First oxygen conten analyser 6a of content.
Gas inlet pipeline 1, the gas inlet pipeline 1 is by the waste gas outlet of VOCs collection device and gas mixing tank 2
Inside connection, for the VOCs exhaust gas A come out from waste gas outlet to be passed through in gas mixing tank 2.
Booster fan 18, which is set at gas inlet pipeline 1, for providing in gas inlet pipeline 1
VOCs exhaust gas A pressure difference, guarantee VOCs exhaust gas A pressure difference be greater than follow up device pressure drop, to guarantee VOCs exhaust gas A rear
It can smoothly advance in continuous device.Fans entrance pressure transmitter 19, and the blower are equipped at the inlet duct of booster fan 18
Inlet pressure transmitter 19 is connect with booster fan 18, the pressure of the inlet duct for detecting booster fan 18.
Nitrogen pipeline 14, source nitrogen B is connected to by nitrogen pipeline 14 with gas inlet pipeline 1, and is equipped at nitrogen pipeline 14
Flow can be opened, close or be adjusted to flow regulator, the flow regulator, in the present embodiment, flow regulator
For nitrogen valve 3, which is the solenoid valve of adjustable aperture.
When nitrogen valve 3 is opened, the nitrogen of source nitrogen B is passed through in gas inlet pipeline 1 by nitrogen pipeline 14, nitrogen
Gas is mixed with VOCs exhaust gas A, and is entered in gas mixing tank 2 and is mixed again together.
Exhaust gas outlet pipe road 4 and burner, in the present embodiment, burner is torch assembly, and torch assembly includes phase
Intercommunicated torch pipe network 20 and torch, exhaust gas outlet pipe road 4 are respectively communicated with the inside of torch pipe network 20 Yu gas mixing tank 2,
And exhaust gas outlet pipe road 4 is connected to the top of gas mixing tank 2, by the mixed gas D by gas mixing tank 2 after mixing
It is passed through in torch pipe network 20.Pressure-regulating valve 9 and differential pressure transmitter 8 are equipped at exhaust gas outlet pipe road 4, specifically, differential pressure transporting
Device 8 is connect between pressure-regulating valve 9 and gas mixing tank 2 and with pressure-regulating valve 9.Wherein, differential pressure transmitter 8 is for examining
The pressure of the mixed gas D at exhaust gas outlet pipe road 4 is surveyed, and pressure is adjusted by the pressure value that differential pressure transmitter 8 detects
Valve 9 carries out appropriate adjustment, so that mixed gas D has suitable pressure value, mixed gas D when being transported to torch pipe network 20
It into torch pipe network 20, and is blended at torch and burns with the high-enriched organics organic component in torch pipe network 20, finally
Obtained purified gas E is discharged into atmosphere, and purified gas E is carbon dioxide and steam.
The process of the present embodiment includes the following steps:
S10: being pressurized VOCs exhaust gas A by booster fan 18, guarantees the pressure of the inlet duct of booster fan 18
>=-200Pa (G), if when the pressure of the inlet duct of booster fan 18 is lower than -200Pa (G), the inlet tube of booster fan 18
It road may be flat by taking out due to pipe negative pressure；
S20: the oxygen content of the mixed gas D in gas mixing tank 2 is obtained using the first oxygen conten analyser 6a；
S30: if the oxygen content of mixed gas D is greater than 2%, it is believed that the oxygen content of the mixed gas D in gas mixing tank 2
Subsequent combustion device can not be discharged into and need to adjust, then follow the steps S40, if the oxygen content of mixed gas D is less than or equal to 2%,
Think that the oxygen content of the mixed gas D in gas mixing tank 2 can be discharged into subsequent combustion device, thens follow the steps S50；
S40: opening flow regulator, and the nitrogen in source nitrogen B is passed through in gas mixing tank 2 by nitrogen pipeline 14
It being mixed, wherein the aperture of flow regulator is calculated according to the oxygen content for measuring mixed gas D in step S20,
And return to step S20；The aperture of flow regulator with specific reference to actual conditions determine, in order to so that nitrogen with
After VOCs exhaust gas A mixing, the oxygen content of the mixing air in gas mixing tank 2 can be lower than 2%；
S50: the pressure for obtaining mixed gas D by differential pressure transmitter 8 by current pressure and presets pressure as current pressure
Power compares, if current pressure is greater than preset pressure, opens pressure-regulating valve 9, and the pressure of mixed gas D is adjusted to default pressure
Power, the preset pressure are higher than the pressure at torch pipe network 20, that is, can guarantee that the mixed gas D in gas mixing tank 2 can be smooth
Into in torch pipe network 20, wherein 0.5~3.0kPa of pressure that preset pressure is higher than at torch pipe network 20 is best, can protect
Card mixed gas D minimizes the energy consumption at booster fan 18 while can smoothly enter into torch pipe network 20.
By the first oxygen conten analyser 6a being set on gas mixing tank 2, can real-time detection to gas mixing tank 2
Oxygen content in interior gas guarantees the oxygen content for the mixed gas D being passed through in torch pipe network 20 lower than 2%, to guarantee fire
Safety at torch system.By the way that differential pressure transmitter 8 is arranged at exhaust gas outlet pipe road 4, for detecting at exhaust gas outlet pipe road 4
Mixed gas D pressure, if when the hypertonia of mixed gas D, by pressure-regulating valve 9 adjust pressure, by mixed gas D
Pressure adjusting be delivered at torch pipe network 20 again to desired value.
It of courses, VOCs recovery unit 17 can also be set at gas inlet pipeline 1, collected for being recovered from VOCs
The higher volatile organic matter of utility value in the VOCs exhaust gas A of device discharge.According to the difference that VOCs is formed, and
VOCs recycles the difference of scheme, and VOCs recovery unit 17 can use cryogenic technology, can use absorption technique, either
The combination of the two and absorbing process.The advantage of cryogenic technology is the recycling VOCs component F that can directly obtain liquid phase, without carrying out
Solvent recovery.Generally want that obtaining pure VOCs group timesharing mostly uses cryogenic technology recovery process.Cryogenic technology is needed cooling temperature
Drop to the dew-point temperature of VOCs or less.
The recycling for purifying the VOCs exhaust gas A of mixed fractions such as gasoline, diesel oil, mostly uses low-temperature solvent to absorb.Absorption technique
Key be low volatility, the selection of VOCs solvent can be dissolved.Regular price gasoline, diesel oil type VOCs mostly use heavy diesel fuel to absorb.Its
His class VOCs then carries out solvent selection according to similar compatibility principle and economical and easily available principle: include but is not limited to water, higher alcohol,
Ester, organic ammonium salt etc..
[embodiment 2]
As shown in Figure 1, embodiment 2 is on the basis of embodiment 1, embodiment 2 further includes being located at VOCs collection device and nitrogen
The second oxygen conten analyser 6b and Control for Oxygen Content system 7 at gas inlet pipeline 1 between feed channel 14, the second oxygen content
Analyzer 6b is used to detect the oxygen content in the VOCs exhaust gas A of VOCs collection device discharge.Control for Oxygen Content system 7 respectively with
First oxygen conten analyser 6a, the second oxygen conten analyser 6b and nitrogen valve 3 connect.In the present embodiment, nitrogen valve 3 can be with
It is the solenoid valve for adjusting aperture.
The process of the present embodiment includes the following steps:
S10: being pressurized VOCs exhaust gas A by booster fan 18, guarantees the pressure of the inlet duct of booster fan 18
>=-200Pa (G), if when the pressure of the inlet duct of booster fan 18 is lower than -200Pa (G), the inlet tube of booster fan 18
It road may be flat by taking out due to pipe negative pressure；
S20: contained using the oxygen content that the second oxygen conten analyser 6b obtains the gas in gas inlet pipeline 1 as preceding oxygen
Measure signal；Meanwhile first oxygen conten analyser 6a obtain gas mixing tank 2 in mixed gas D rear oxygen content signal；
S30: preceding oxygen content signal selects the opening and closing of two control nitrogen valves 3 with rear oxygen content signal two.When any oxygen content
Signal is greater than 2%, it is believed that from the too high oxygen level of the VOCs exhaust gas A of upstream, can not be discharged into subsequent flare combustion apparatus and need
Adjustment, thens follow the steps S40；It is respectively less than and if only if two oxygen content signals and is equal to 2%, it is believed that the VOCs exhaust gas A from upstream
Oxygen content can be discharged into subsequent combustion device, then follow the steps S50；
S40: opening flow regulator, and the nitrogen in source nitrogen B is passed through in gas mixing tank 2 by nitrogen pipeline 14
It is mixed, wherein the aperture of flow regulator is according to measuring preceding oxygen content signal and rear oxygen content signal in step S20
In take the larger value to be calculated, the aperture of flow regulator is determined with specific reference to actual conditions, in order to so that nitrogen
After mixing with VOCs exhaust gas A, the oxygen content for being passed through the mixed gas D in subsequent combustion device can be lower than 2%；
S50: the pressure for obtaining gas in exhaust gas outlet pipe road 4 by differential pressure transmitter 8 will be pressed currently as current pressure
Power, if current pressure is greater than preset pressure, opens pressure-regulating valve 9, by gas in exhaust gas outlet pipe road 4 compared with preset pressure
The pressure of body is adjusted to preset pressure, which is higher than the pressure at torch pipe network 20, that is, can guarantee gas mixing tank 2
Interior mixed gas D can smoothly enter into torch pipe network 20, wherein preset pressure is higher than the pressure 0.5 at torch pipe network 20
~3.0kPa is best, and booster fan 18 is minimized while can guarantee that mixed gas D can smoothly enter into torch pipe network 20
The energy consumption at place.
By setting Control for Oxygen Content system 7 to the first oxygen conten analyser 6a, the second oxygen conten analyser 6b and nitrogen
Valve 3 is uniformly controlled, without manually being operated from side, convenient and saving human cost.Control for Oxygen Content system 7 receives respectively
The preceding oxygen content signal and the second oxygen conten analyser in VOCs exhaust gas A detected at the first oxygen conten analyser 6a
Rear oxygen content signal at the gas inlet pipeline 1 detected at 6b, Control for Oxygen Content system 7 is according to preceding oxygen content signal with after
The larger value between oxygen content signal is calculated, according to the actual situation control nitrogen valve 3 opening, close or its open
Degree, guarantee mixed gas D oxygen content reach the standard that can be passed through torch pipe network 20, i.e. oxygen content whether less than 2%, thus
Guarantee the safety at torch assembly.
[embodiment 3]
As shown in Figure 1, embodiment 3 is on the basis of Examples 1 to 2, embodiment 3 further include: demister 15, level transmitting
Device 12 and drain pipe, wherein demister 15 is set to the top in gas mixing tank 2 and being in the gas mixing tank 2, liquid level
Transmitter 12 is set on gas mixing tank 2, and for the liquid level in detection gas blending tank 2, the drain pipe and gas are mixed
The bottom connection of tank 2 is closed, and is equipped with tapping valve 13 at drain pipe, tapping valve 13 is connect with fluid level transmitter 12.
When mixing using nitrogen with VOCs exhaust gas A, since the temperature of nitrogen is lower, VOCs can be reduced indirectly in mixing
The temperature of exhaust gas A will lead to part volatile organic matter and condense into liquid, thus when mixed gas D passes through demister 15, condensation
Volatile organic matter can stay in the bottom of gas mixing tank 2 and form the discharge liquor C that is discharged to drain pipe.
When the liquid level of liquid is higher than the 40% of the height of entire gas mixing tank 2, fluid level transmitter 12 can be sent
Signal is to tapping valve 13, so that tapping valve 13 is opened, so that the discharge liquor C in gas mixing tank 2 is discharged by drain pipe, otherwise
Easily cause entrained liquid, increases the load of demister 15.
[embodiment 4]
As shown in Figure 1, embodiment 4, on the basis of Examples 1 to 3, embodiment 4 further includes emergency blow-down pipeline 5, this is tight
Anxious exhausting pipeline 5 is connected to the inside of gas mixing tank 2, and stop valve 16 is equipped at emergency blow-down pipeline 5, is used for gas
The internal gas of blending tank 2 is discharged, and the stop valve 16 is connect with differential pressure transmitter 8.
When detecting that the pressure of mixed gas D is higher than safe pressure at differential pressure transmitter 8, differential pressure transmitter 8 can be automatic
Signal is sent to stop valve 16, to open stop valve 16 so that in gas mixing tank 2 can quick pressure releasing, avoid gas mixed
It closes tank 2 to damage since pressure is too big, or safety accident occurs.
[embodiment 5]
As shown in Figure 1, embodiment 5 on the basis of Examples 1 to 4, is equipped with resistance at the exhaust gas outlet pipe road 4 of embodiment 5
Firearm 10, fire arrester 10 are set between differential pressure transmitter 8 and torch pipe network 20.Check-valves 11 is equipped at exhaust gas outlet pipe road 4,
Check-valves 11 is set between fire arrester 10 and torch pipe network 20.Fire arrester 10 is used for fiery condition barrier, avoid more equipment by
Fiery condition involves.Check-valves 11 can prevent the high-enriched organics organic component in torch pipe network 20 from passing back into gas mixing tank 2.
It should be noted that above-described embodiment can be freely combined as needed.The above is only the utility model
Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle
Under the premise of, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of VOCs waste-gas burning system characterized by comprising
Gas mixing tank is equipped with the first oxygen for detecting oxygen content inside the gas mixing tank at the gas mixing tank and contains
Measure analyzer；
Gas inlet pipeline, the inside of the connection of gas inlet pipeline the VOCs collection device and the gas mixing tank；
Booster fan, the booster fan is arranged at the gas inlet pipeline, for providing VOCs exhaust gas pressure difference；
Source nitrogen is connected to by nitrogen pipeline, the nitrogen pipeline with the gas inlet pipeline, and stream is equipped at the nitrogen pipeline
Quantity regulating device；
Exhaust gas outlet pipe road and burner, the exhaust gas outlet pipe road are respectively communicated with the burner and gas mixing tank
Inside, pressure-regulating valve and differential pressure transmitter are equipped at the exhaust gas outlet pipe road, and the differential pressure transmitter is located at the pressure
It is connect between regulating valve and gas mixing tank and with the pressure-regulating valve.
2. VOCs waste-gas burning system according to claim 1, it is characterised in that:
The burner is torch assembly.
3. VOCs waste-gas burning system according to claim 2, which is characterized in that further include:
The second oxygen conten analyser at gas inlet pipeline between the VOCs collection device and nitrogen pipeline；
Control for Oxygen Content system, the Control for Oxygen Content system are divided with first oxygen conten analyser, the second oxygen content respectively
Analyzer is connected with flow regulator.
4. VOCs waste-gas burning system according to claim 1, which is characterized in that further include:
Demister, the demister are set in the gas mixing tank.
5. VOCs waste-gas burning system according to claim 4, which is characterized in that further include:
The fluid level transmitter being set on the gas mixing tank；
Drain pipe, the drain pipe are connected to the bottom of the gas mixing tank, and tapping valve, the row are equipped at the drain pipe
Liquid valve is connect with the fluid level transmitter.
6. VOCs waste-gas burning system according to claim 1, which is characterized in that further include:
The emergency blow-down pipeline being connected to the inside of the gas mixing tank, for the internal gas of gas mixing tank to be discharged,
Stop valve is equipped at the emergency blow-down pipeline.
7. VOCs waste-gas burning system according to claim 6, it is characterised in that:
The stop valve is connect with the differential pressure transmitter.
8. VOCs waste-gas burning system according to claim 1, it is characterised in that:
Be equipped with fire arrester at the exhaust gas outlet pipe road, the fire arrester be set to the differential pressure transmitter and burner it
Between；
And/or
Check-valves is equipped at the exhaust gas outlet pipe road, the check-valves is set between the fire arrester and burner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820672302.7U CN208382184U (en) | 2018-05-07 | 2018-05-07 | A kind of VOCs waste-gas burning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820672302.7U CN208382184U (en) | 2018-05-07 | 2018-05-07 | A kind of VOCs waste-gas burning system |
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| CN208382184U true CN208382184U (en) | 2019-01-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626733A (en) * | 2018-05-07 | 2018-10-09 | 上海蓝科石化环保科技股份有限公司 | A kind of VOCs waste-gas burning systems and its process |
| CN111871144A (en) * | 2020-08-06 | 2020-11-03 | 临沂恒昌焦化股份有限公司 | Coking waste gas recovery processing system |
| CN114425214A (en) * | 2020-09-28 | 2022-05-03 | 中国石油化工股份有限公司 | Equipment for collecting and conveying VOCs loading gas and method for safely collecting and conveying VOCs gas |
-
2018
- 2018-05-07 CN CN201820672302.7U patent/CN208382184U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626733A (en) * | 2018-05-07 | 2018-10-09 | 上海蓝科石化环保科技股份有限公司 | A kind of VOCs waste-gas burning systems and its process |
| CN111871144A (en) * | 2020-08-06 | 2020-11-03 | 临沂恒昌焦化股份有限公司 | Coking waste gas recovery processing system |
| CN111871144B (en) * | 2020-08-06 | 2022-03-11 | 临沂恒昌焦化股份有限公司 | Coking waste gas recovery processing system |
| CN114425214A (en) * | 2020-09-28 | 2022-05-03 | 中国石油化工股份有限公司 | Equipment for collecting and conveying VOCs loading gas and method for safely collecting and conveying VOCs gas |
| CN114425214B (en) * | 2020-09-28 | 2023-07-18 | 中国石油化工股份有限公司 | Equipment for collecting and conveying VOCs loading gas and method for safely collecting and conveying VOCs gas |
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