CN207247227U - A kind of humidity control system of RTO oxidation furnaces - Google Patents
A kind of humidity control system of RTO oxidation furnaces Download PDFInfo
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- CN207247227U CN207247227U CN201721121403.7U CN201721121403U CN207247227U CN 207247227 U CN207247227 U CN 207247227U CN 201721121403 U CN201721121403 U CN 201721121403U CN 207247227 U CN207247227 U CN 207247227U
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Abstract
The utility model discloses a kind of humidity control system of RTO oxidation furnaces, organic exhaust gas is entered RTO regenerative chambers by the system by switch valve, after being heated by heat storage, into oxidation Indoor Combustion, high temperature purification gas after burning enters back into regenerative chamber, heat storage body, after purified gas cooling, chimney is discharged to through air-introduced machine；When RTO oxidizing chambers overtemperature is more than more than 850 DEG C of RTO normal operating temperatures, starts circulation temperature lowering circuit and carry out circulation tonifying Qi, ensure the normal operation of system.Draw Partial cleansing gas into oxidizing chamber or mixed with exhaust gas, purification gas flow is controlled by control valve after air-introduced machine.Draw Partial cleansing gas and enter oxidizing chamber, oxidation room temperature is adjusted using the low temperature of purification gas.Draw Partial cleansing gas to mix with exhaust gas, reduce the content of VOCs, adjust oxidation room temperature, ensure that the temperature normal work of whole RTO oxidation furnaces.
Description
Technical field
A kind of humidity control system of RTO oxidation furnaces is the utility model is related to, is primarily adapted for use in application, printing, shoemaking, change
The VOCs processing of the industry such as work production and pharmacy, especially the RTO treatment process of high concentration VOCs.
Background technology
In recent years, repeatedly there is large-scale haze weather in the multiple areas in China, with ozone, fine particle (PM2. 5)
, the regional air combined pollution problem that is characterized of acid rain becomes increasingly conspicuous.As ozone and Secondary Organic particulate matter it is important before
Body thing, volatile organic matter (Volatile Organic Compounds, VOCs) are played the part of in Atmospheric Chemistry reaction process
Drill extremely important role.Meanwhile most VOCs has stronger irritation and toxicity.As benzene is listed in first
Class carcinogen, n-hexane, heptane and octane can influence the central nervous system of people.VOCs is mainly derived from application, printing, system
The industries such as footwear, Chemical Manufacture and pharmacy.
In most industries, the component of VOCs is not fixed in exhaust gas, and concentration also has very great fluctuation process.Using RTO techniques
During processing, RTO oxidations room temperature can exceed design temperature, existing mainstream technology：
1. high temperature bypasses, part high-temperature flue gas is expelled directly out, controls oxidizing chamber and accumulation of heat room temperature not overtemperature.High temperature
Bypass there is problems：（1）Line size is larger, it is necessary to keep the temperature, increase equipment investment；（2）Regulating valve needs high temperature resistant
（>8850℃）, cracky, regulation performance is poor；（3）Follow-up equipment is considered as insulation and material problem；（4）Reduce RTO recuperations of heat
Efficiency.
2. low temperature bypasses, a part of exhaust gas is directly entered oxidizing chamber, reduces oxidation room temperature.It can solve high temperature bypass
Existing subproblem, but there is problems：（1）VOCs delayed combustions, cause regenerative chamber overtemperature；（2）Aoxidize room temperature
Reduce rapidly, cause treatment effeciency to decline.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, propose that a kind of recycled using purified gas adjusts technique, achieve the goal
First, solve the problems, such as that above two technique exists；Purpose two is to improve RTO purification efficiencies.
Technical solution is used by the utility model：A kind of humidity control system of RTO oxidation furnaces, including be connected to
Regenerative chamber A, regenerative chamber B, regenerative chamber C, air-introduced machine and chimney on exhaust pipe, wherein:Regenerative chamber A, regenerative chamber B and accumulation of heat
Room C is all connected with oxidizing chamber, and regenerative chamber A, regenerative chamber B, regenerative chamber C connect air-introduced machine and chimney by an outlet valve respectively
Into purification circuit；Air-introduced machine is connected to be formed on regenerative chamber A, regenerative chamber B and regenerative chamber C by an air intake valve and purged respectively
Pipeline；Air-introduced machine is connected in oxygen room by a control valve or the inlet end of exhaust pipe forms a circulation temperature lowering
Circuit.
Further, the front end of exhaust pipe into regenerative chamber A are also associated with pressure fan.
Further, the front end of exhaust pipe into pressure fan is additionally provided with gas mixing device, and air-introduced machine passes through a regulating valve
Door connection gas mixing device forms circulation temperature lowering circuit.
The adjusting technique of above-mentioned humidity control system includes the following steps：
A. heat-accumulation combustion, after VOCs exhaust gas is heated by exhaust pipe into regenerative chamber A by high-temperature thermal storage body, into oxidation
Room is burnt, and the high temperature purification gas after burning enters back into heat storage body in regenerative chamber B；
B. purification exhaust, the heat storage in regenerative chamber B are heated, and purified gas reduces the warp by purifying air pipe after temperature
Air-introduced machine is discharged to chimney；
C. cycle purge, Partial cleansing gas enter the last stage into the regenerative chamber C of exhaust gas through scavenging pipeline, residual exhaust gases are blown
Enter to aoxidize Indoor Combustion；When oxidizing chamber overtemperature, control valve is opened, draws low temperature purification gas out of air-introduced machine or mixed thermal
Body enters in oxidizing chamber, reduces oxidation room temperature to normal operating temperature.
Further, control valve is opened, is obtained from circulation temperature lowering circuit when aoxidizing room temperature more than 850 DEG C in step C
Gas is taken, and then reduces the temperature of oxidizing chamber.
Further, total amount is recycled from the purified gas for out participating in circulation temperature lowering circuit and scavenging pipeline of air-introduced machine
Less than the 20% of the exhausted air quantity of RTO processing.
Further, total amount is recycled from the purified gas for out participating in circulation temperature lowering circuit and scavenging pipeline of air-introduced machine
Less than the 40% of the exhausted air quantity of RTO processing.
Compared with prior art, the beneficial effects of the utility model are：The temperature adjustment of the RTO oxidation furnaces of the utility model
System so that exhaust gas enters RTO regenerative chambers by switch valve, after being heated by heat storage, into oxidation Indoor Combustion, after burning
High temperature purification gas enter back into regenerative chamber, heat storage body, after purified gas cooling, chimney is discharged to through air-introduced machine.When RTO oxidizing chambers
During interior overtemperature, draw Partial cleansing gas and enter oxidizing chamber, adjust oxidation room temperature.The principal element for causing oxidizing chamber overtemperature is useless
VOCs contents are high in gas, also can mix Partial cleansing gas with exhaust gas, reduce VOCs contents in exhaust gas, and mixed gas enters
Processing in RTO.
In general, when RTO oxidizing chambers overtemperature is more than more than 850 DEG C of RTO normal operating temperatures, start circulation temperature lowering and return
Road carries out circulation tonifying Qi, ensures the normal operation of system.Draw Partial cleansing gas into oxidizing chamber or mixed with exhaust gas, in air inducing
After machine or again after air-introduced machine, pass through control valve and control purification gas flow.Purification gas flow should be less than RTO treating capacities
40%, optimised quantity should be less than the 20% of RTO treating capacities.Draw Partial cleansing gas and enter oxidizing chamber, utilize the low temperature of purification gas
Adjust oxidation room temperature.Draw Partial cleansing gas to mix with exhaust gas, reduce the content of VOCs, adjust oxidation room temperature.
In conclusion the humidity control system and its technique of the RTO oxidation furnaces of the utility model, establish three accumulation of heats
Room, these three regenerative chambers are commonly connected to combustion chamber, and purified gas is passed through air-introduced machine and cigarette by the first two air inlet regenerative chamber
Chimney exports purified gas, and output while is fully burnt by regenerative chamber C and combustion chamber, and air-introduced machine passes through circulation temperature lowering
Gas benefit is led back combustion chamber in circuit or gas mixing device is supplemented, and ensure that the temperature normal work of whole RTO oxidation furnaces.
Brief description of the drawings
Fig. 1 runs for RTO systems negative pressure, and recycling purified gas is directly entered the schematic diagram of RTO oxidizing chambers；；
Fig. 2 runs for RTO systems negative pressure, the schematic diagram that recycling purified gas is mixed with exhaust gas；
Fig. 3 is RTO system operation under positive pressure, and recycling purified gas is directly entered the schematic diagram of RTO oxidizing chambers；
Fig. 4 is RTO system operation under positive pressure, the schematic diagram that recycling purified gas is mixed with exhaust gas；
Wherein：1- exhaust pipes, 2- regenerative chambers A, 3- regenerative chamber B, 4- regenerative chamber C, 5- oxidizing chamber, 6- pressure fan, 7- tune
Section valve, 8- air-introduced machines, 9- chimneys, 10- purification circuits, 11- gas mixing devices, 12- scavenging pipelines, 13- circulation temperature lowerings circuit,
14- air intake valves, 15- outlet valves.
Embodiment
In order to deepen the understanding to the utility model, with reference to the accompanying drawings and examples to the utility model furtherly
Bright, which is only used for explaining the utility model, and the scope of protection of the utility model is not formed and is limited.
As shown in Figure 1, a kind of humidity control system of RTO oxidation furnaces, including the regenerative chamber being connected on exhaust pipe 1
A2, regenerative chamber B3, regenerative chamber C4, air-introduced machine 8 and chimney 9, wherein:Regenerative chamber A2, regenerative chamber B3 and regenerative chamber C4 are all connected with oxygen
Change room 5, regenerative chamber A2, regenerative chamber B3, regenerative chamber C connect air-introduced machine 8 by an outlet valve 15 respectively and chimney 9 is formed only
Change circuit 10；Air-introduced machine 8 is connected on regenerative chamber A2, regenerative chamber B3 and regenerative chamber C4 by an air intake valve 14 is formed respectively
Scavenging pipeline 12；Air-introduced machine 8 is connected in oxygen room 5 by a control valve 7 or the inlet end of exhaust pipe 1 forms one
A circulation temperature lowering circuit 13.
In the above-described embodiments, the front end that regenerative chamber A2 can be entered in exhaust pipe 1 is also associated with pressure fan 6, air inducing
Machine 8 connects oxidizing chamber 5 by a control valve 7 and forms a circulation temperature lowering circuit 13.It can also enter in exhaust pipe 1
The front end of pressure fan 6 is additionally provided with gas mixing device 11.In the above-described embodiments, air-introduced machine 8 passes through the mixed gas of the connection of control valve 7
Device 11 forms a circulation temperature lowering circuit 13.Both connection relations are respectively provided with preferable using effect.
Embodiment 1
As shown in Figure 1, exhaust gas is by exhaust pipe 1, into regenerative chamber A, after being heated by high-temperature thermal storage body, into oxidizing chamber
5 burnings, the high temperature purification gas after burning are entered back into regenerative chamber B, and heat storage body, the purified gas after cooling is by purifying tracheae
Road 10, chimney 9 is discharged to through air-introduced machine 8 again.For partial fume through scavenging pipeline 12, the regenerative chamber C into the last stage into exhaust gas will be residual
Exhaust gas is stayed to be blown into burning in oxidizing chamber 5.When 5 overtemperature of oxidizing chamber, control valve 7 is opened, draws low temperature purification gas and enters oxidation
In room 5,5 temperature of oxidizing chamber is reduced to normal operating temperature.
Embodiment 2
As shown in Fig. 2, exhaust gas is by exhaust pipe 1, into regenerative chamber A, after being heated by high-temperature thermal storage body, into oxidizing chamber
5 burnings, the high temperature purification gas after burning are entered back into regenerative chamber B, and heat storage body, the purified gas after cooling is by purifying tracheae
Road 11, chimney 9 is discharged to through air-introduced machine 10.Through scavenging pipeline 7, the regenerative chamber C into the last stage into exhaust gas will be remained partial fume
Exhaust gas is blown into burning in oxidizing chamber 5.When 5 overtemperature of oxidizing chamber, control valve 7 is opened, draws low temperature purification gas and enters mixed gas dress
11 are put, is mixed with exhaust gas, the concentration of VOCs in exhaust gas is reduced, so as to reduce by 5 temperature of oxidizing chamber to normal operating temperature.
Embodiment 3
As shown in figure 3, exhaust gas enters regenerative chamber A by pressure fan 6, by exhaust pipe 1, after being heated by high-temperature thermal storage body,
Burn into oxidizing chamber 5, the high temperature purification gas after burning is entered back into regenerative chamber B, and heat storage body, the purified gas after cooling is led to
Purification air pipe 10 is crossed, is discharged to chimney 9.Partial fume is by air-introduced machine 8, through scavenging pipeline 12, into the last stage into the storage of exhaust gas
Residual exhaust gases are blown into burning in oxidizing chamber 5 by hot cell C.When 5 overtemperature of oxidizing chamber, control valve 7 is opened, by air-introduced machine 8 by portion
Divide low temperature purification gas to enter in oxidizing chamber 5, reduce by 5 temperature of oxidizing chamber to normal operating temperature.
Embodiment 4
As shown in figure 4, exhaust gas enters regenerative chamber A by pressure fan 2, by exhaust pipe 3, after being heated by high-temperature thermal storage body,
Burn into oxidizing chamber 5, the high temperature purification gas after burning is entered back into regenerative chamber B, and heat storage body, the purified gas after cooling is led to
Purification air pipe 10 is crossed, is discharged to chimney 9.Partial fume is by air-introduced machine 8, through scavenging pipeline 12, into the last stage into the storage of exhaust gas
Residual exhaust gases are blown into burning in oxidizing chamber 5 by hot cell C.When 5 overtemperature of oxidizing chamber, control valve 7 is opened, by air-introduced machine 8 by portion
Divide low temperature purification gas to enter gas mixing device 11, mixed with exhaust gas, the concentration of VOCs in exhaust gas is reduced, so as to reduce oxidizing chamber 5
Temperature is to normal operating temperature.
The adjusting technique of above-mentioned humidity control system includes the following steps：
A. heat-accumulation combustion, after VOCs exhaust gas is heated by exhaust pipe 1 into regenerative chamber A by high-temperature thermal storage body, into oxygen
Change room burning, the high temperature purification gas after burning enters back into heat storage body in regenerative chamber B；
B. purification exhaust, Partial cleansing gas in regenerative chamber B are discharged to chimney by purify air pipe through air-introduced machine；
C. cycle purge, Partial cleansing gas in regenerative chamber B enter the last stage into the regenerative chamber C of exhaust gas through scavenging pipeline,
Residual exhaust gases are blown into oxidation Indoor Combustion；When oxidizing chamber overtemperature, control valve is opened, out of air-introduced machine or mixed thermal
Draw low temperature purification gas to enter in oxidizing chamber, reduce oxidation room temperature to normal operating temperature.
In step C when aoxidizing room temperature more than 850 DEG C, control valve is opened, gas is obtained from circulation temperature lowering circuit, into
And reduce the temperature of oxidizing chamber.
In the above-described embodiments, followed again from the purified gas for out participating in circulation temperature lowering circuit and scavenging pipeline of air-introduced machine
Ring total amount is less than the 20% of the exhausted air quantity of RTO processing, and optimal embodiment is circulation temperature lowering circuit and the purified gas of scavenging pipeline
Recycle total amount is less than the exhausted air quantity of RTO processing 40%.
What the embodiment of the utility model was announced is preferred embodiment, but is not limited thereto, the common skill of this area
Art personnel, easily according to above-described embodiment, understand the spirit of the utility model, and make different amplification and change, but as long as
The spirit of the utility model is not departed from, it is all within the protection scope of the present utility model.
Claims (3)
- A kind of 1. humidity control system of RTO oxidation furnaces, it is characterised in that：Including being connected to exhaust pipe（1）On regenerative chamber A （2）, regenerative chamber B（3）, regenerative chamber C（4）, air-introduced machine（8）And chimney（9）, wherein:Regenerative chamber A（2）, regenerative chamber B（3）And storage Hot cell C（4）It is all connected with oxidizing chamber（5）, regenerative chamber A（2）, regenerative chamber B（3）, regenerative chamber C（4）Pass through an outlet valve respectively （15）Connect air-introduced machine（8）And chimney（9）Form purification circuit（10）；Air-introduced machine（8）Pass through an air intake valve respectively（14） It is connected to regenerative chamber A（2）, regenerative chamber B（3）With regenerative chamber C（4）Upper formation scavenging pipeline（12）；Air-introduced machine（8）Pass through a tune Save valve（7）It is connected to oxygen room（5）Upper or exhaust pipe（1）Inlet end formed a circulation temperature lowering circuit（13）.
- A kind of 2. humidity control system of RTO oxidation furnaces according to claim 1, it is characterised in that：Exhaust pipe（1）Into Enter regenerative chamber A（2）Front end be also associated with pressure fan（6）.
- A kind of 3. humidity control system of RTO oxidation furnaces according to claim 1 or 2, it is characterised in that：Exhaust pipe （1）Into pressure fan（6）Front end be additionally provided with gas mixing device（11）, air-introduced machine（8）Pass through a control valve（7）The mixed gas of connection Device（11）Form circulation temperature lowering circuit（13）.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721121403.7U CN207247227U (en) | 2017-09-04 | 2017-09-04 | A kind of humidity control system of RTO oxidation furnaces |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721121403.7U CN207247227U (en) | 2017-09-04 | 2017-09-04 | A kind of humidity control system of RTO oxidation furnaces |
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| CN207247227U true CN207247227U (en) | 2018-04-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366922A (en) * | 2017-09-04 | 2017-11-21 | 徐州科融环境资源股份有限公司 | The humidity control system and its regulation technique of a kind of RTO oxidation furnaces |
| CN111322625A (en) * | 2020-03-05 | 2020-06-23 | 杨峥雄 | Method and structure for improving treatment rate of circulating Regenerative Thermal Oxidizer (RTO) |
| CN114427687A (en) * | 2022-03-02 | 2022-05-03 | 山西亚乐士环保技术股份有限公司 | High-temperature low-oxygen heat accumulating type dispersion thermal oxidation treatment device |
-
2017
- 2017-09-04 CN CN201721121403.7U patent/CN207247227U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366922A (en) * | 2017-09-04 | 2017-11-21 | 徐州科融环境资源股份有限公司 | The humidity control system and its regulation technique of a kind of RTO oxidation furnaces |
| CN111322625A (en) * | 2020-03-05 | 2020-06-23 | 杨峥雄 | Method and structure for improving treatment rate of circulating Regenerative Thermal Oxidizer (RTO) |
| CN114427687A (en) * | 2022-03-02 | 2022-05-03 | 山西亚乐士环保技术股份有限公司 | High-temperature low-oxygen heat accumulating type dispersion thermal oxidation treatment device |
| CN114427687B (en) * | 2022-03-02 | 2024-04-26 | 山西亚乐士环保技术股份有限公司 | High-temperature low-oxygen heat accumulating type heat dissipation oxidation treatment device |
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