CN214914697U - A safe processing apparatus for big undulant waste gas - Google Patents
A safe processing apparatus for big undulant waste gas Download PDFInfo
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- CN214914697U CN214914697U CN202120212480.3U CN202120212480U CN214914697U CN 214914697 U CN214914697 U CN 214914697U CN 202120212480 U CN202120212480 U CN 202120212480U CN 214914697 U CN214914697 U CN 214914697U
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- catalytic oxidation
- oxidation treatment
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Abstract
The utility model provides a safe processing device for large-fluctuation waste gas, which comprises a waste gas inlet, an absorber, catalytic oxidation processing equipment and a chimney which are sequentially arranged on a conveying pipeline, wherein the absorber comprises an adsorption box A and an adsorption box B which are arranged in parallel through branch pipelines; the desorption pipeline extends from the outlet of the catalytic oxidation treatment equipment, and reaches the inlet of the catalytic oxidation treatment equipment after passing through the adsorption box A and the adsorption box B in parallel through the desorption branch pipe, the gas at the outlet of the catalytic oxidation treatment equipment is used as desorption gas, and a fan and an electric heater are sequentially arranged between the outlet of the catalytic oxidation treatment equipment and the adsorber along the flow direction of waste gas on the desorption pipeline. The utility model provides a to the processing overload that big undulant waste gas caused waste gas treatment device and assault and the heat unstable condition, carry out the safety processing device that "peak load balancing" technology was handled.
Description
Technical Field
The utility model relates to an exhaust-gas treatment technical field especially relates to a safe processing apparatus that is used for big undulant waste gas to carry out peak load balancing.
Background
In the existing organic waste gas collecting process, due to the diversity and instability of waste gas sources, the common phenomena of large waste gas concentration fluctuation, unstable waste gas components and the like exist. Common catalytic oxidation, catalytic combustion and the like all need certain thermal stability to ensure that the system can stably operate in a self-sustaining manner, and the heat generated by the system is utilized to maintain the temperature required by the reaction. Meanwhile, the short-time high concentration easily causes the device to be in an overload state, so that the catalytic effect is influenced, and even the service life of the catalyst is influenced. Therefore, it is particularly important to perform peak and valley elimination on the exhaust gas with large incoming air fluctuation.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the utility model aims to provide a to the processing overload that big undulant waste gas caused waste gas to exhaust-gas treatment equipment and assault and the unstable condition of heat, carry out the safety processing device that "peak load balancing" technology was handled.
Aiming at the problems, the following technical scheme is provided: a safe treatment device for large-fluctuation exhaust gas, characterized in that: the device comprises a waste gas inlet, an adsorber, catalytic oxidation treatment equipment and a chimney which are sequentially arranged on a conveying pipeline, wherein the adsorber comprises an adsorption tank A and an adsorption tank B which are arranged in parallel through branch pipelines, a valve aI and a valve bI are respectively arranged on the branch pipelines between the waste gas inlet and the adsorption tank A and between the waste gas inlet and the adsorption tank B, and a valve aII and a valve bII are respectively arranged on the branch pipelines between the catalytic oxidation treatment equipment and the adsorption tank A and between the catalytic oxidation treatment equipment and the adsorption tank B; a desorption pipeline opposite to the circulation direction of the waste gas in the conveying pipeline is communicated and arranged on the conveying pipeline between the catalytic oxidation treatment equipment and the chimney, the desorption pipeline extends from an outlet of the catalytic oxidation treatment equipment and passes through an adsorption box A and an adsorption box B in parallel through a desorption branch pipe to reach an inlet of the catalytic oxidation treatment equipment, gas at the outlet of the catalytic oxidation treatment equipment is used as desorption gas in the desorption pipeline, a valve aiII and a valve aiII are respectively arranged on the desorption branch pipe between the outlet of the catalytic oxidation treatment equipment and the adsorption box A and between the outlet of the catalytic oxidation treatment equipment and the adsorption box B, a valve aiIV and a valve aiIV are respectively arranged on the desorption branch pipe between the inlet of the catalytic oxidation treatment equipment and the adsorption box A and between the inlet of the catalytic oxidation treatment equipment and the adsorption box B, one adsorption and one desorption of the adsorption box A and the adsorption box B are sequentially switched through a switching valve and the desorption pipeline, circularly carrying out; and a fan and an electric heater are sequentially arranged on the desorption pipeline between the outlet of the catalytic oxidation treatment equipment and the adsorber along the flow direction of the waste gas.
The utility model discloses further set up to, the installation is equipped with the spark arrester on the pipeline between waste gas entry and the adsorber.
The utility model discloses further set up as, the adsorbent that adopts in the adsorber is active carbon or molecular sieve.
The utility model has the advantages that:
the safety processing device mainly aims at the conditions of processing overload impact and unstable heat caused by high-concentration waste gas with large fluctuation on waste gas processing equipment, and carries out 'peak and valley eliminating' technical processing; the adsorber comprises an adsorption box A and an adsorption box B, one adsorption and one desorption are sequentially switched through a switching valve and a desorption pipeline and are circularly carried out, when the first adsorption box is saturated, the waste gas is switched to the second adsorption box for pretreatment, desorption gas is simultaneously introduced into the first adsorption box for desorption, and the desorbed gas and the pretreated waste gas enter catalytic oxidation treatment equipment together for further treatment and emission reaching the standard; the waste gas after being treated by the safety treatment device has obvious peak and valley eliminating effect, ensures the concentration and stability of the waste gas, reduces the operation fluctuation of the device and reduces the impact on the catalyst.
Drawings
Fig. 1 is a schematic structural diagram of a safety processing device according to an embodiment of the present invention.
The figure shows schematically: 1-a conveying pipeline; 11-a branch conduit; 12-valve ai; 13-valve bi; 14-valve aii; 15-valve bii; 16-a flame arrester; 2-an exhaust gas inlet; 3-an adsorber; 31-adsorption tank a; 32-adsorption tank B; 4-catalytic oxidation treatment equipment; 5-a chimney; 6-stationary intake line; 7-desorption line; 71-desorption branch pipe; 72-valve aiII; 73-valve bii; 74-valve aIV; 75-valve xiv; 8-a fan; 9-an electric heater;
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1, a safe processing device for large fluctuation waste gas comprises a waste gas inlet 2, an adsorber 3, a catalytic oxidation processing device 4 and a chimney 5 which are sequentially installed on a conveying pipeline 1, wherein the adsorber 3 comprises an adsorption tank a31 and an adsorption tank B32 which are arranged in parallel through a branch pipeline 11, a valve a i 12 and a valve B i 13 are respectively arranged on the branch pipeline 11 between the waste gas inlet 2 and the adsorption tank a31 as well as between the waste gas inlet and the adsorption tank B32, and a valve a ii 14 and a valve B ii 15 are respectively arranged on the branch pipeline 11 between the catalytic oxidation processing device 4 and the adsorption tank a31 as well as between the catalytic oxidation processing device and the adsorption tank B32; as shown in the figure, the waste gas is divided into the more stable waste gas and the waste gas with larger fluctuation, the more stable waste gas enters from the waste gas inlet 2 through the stable air inlet pipeline 6, is directly discharged from the chimney 5 after being treated and reached the standard in the catalytic oxidation treatment equipment 4, the waste gas with larger fluctuation enters from the waste gas inlet 2 into the fluctuation air inlet pipeline, namely enters from the conveying pipeline 1, is adsorbed through the adsorber 3, and the adsorbed gas and the more stable waste gas are further treated and discharged after reaching the standard through the catalytic oxidation treatment equipment 4, so that the effect of peak elimination can be realized.
As shown in fig. 1, a desorption pipeline 7 opposite to the exhaust gas flowing direction in the conveying pipeline 1 is communicated with the conveying pipeline 1 between the catalytic oxidation treatment equipment 4 and the chimney 5, the desorption pipeline 7 extends from the outlet of the catalytic oxidation treatment equipment 4 and passes through an adsorption tank a31 and an adsorption tank B32 in parallel through a desorption branch pipe 71 to reach the inlet of the catalytic oxidation treatment equipment 4, the gas at the outlet of the catalytic oxidation treatment equipment 4 is used as the desorption gas in the desorption pipeline 7, a valve a iii 72 and a valve B iii 73 are respectively arranged on the desorption branch pipe 71 between the outlet of the catalytic oxidation treatment equipment 4 and the adsorption tank a31 and the adsorption tank B32, a valve a iv 74 and a valve B iv 75 are respectively arranged on the desorption branch pipe 71 between the inlet of the catalytic oxidation treatment equipment 4 and the adsorption tank a31 and the adsorption tank B32, and an adsorption tank a31 and an adsorption tank B32 adsorb, A desorption step, which is carried out in a circulating way by sequentially switching a switching valve and a desorption pipeline 7; and a fan 8 and an electric heater 9 are sequentially arranged on the desorption pipeline 7 between the outlet of the catalytic oxidation treatment equipment 4 and the adsorber 3 along the flow direction of the waste gas. The adsorbent adopted in the adsorber 3 is activated carbon or molecular sieve.
In the structure, the safety processing device is also provided with a desorption pipeline 7, namely when one adsorption tank is saturated, the waste gas is switched to the other adsorption tank for waste gas pretreatment, the saturated adsorption tank is simultaneously introduced with desorption gas for desorption, the two adsorption tanks, one adsorption tank and one desorption tank are sequentially switched through a switching valve and the desorption pipeline 7 and circularly carried out, and the desorbed gas and the pretreated waste gas enter the catalytic oxidation processing equipment 4 together for further processing and emission reaching the standard; therefore, the effect of 'flat valley' can be realized, the concentration and stability of waste gas are ensured, the operation fluctuation of the device is reduced, and the impact on the catalyst is reduced.
With reference to fig. 1, the specific treatment process is that, firstly, the valve ai 12 and the valve aii 14 are opened, other valves are in a closed state, the exhaust gas with large fluctuation enters the adsorption box a31 for adsorption, and the adsorbed gas and the stable exhaust gas are further treated by the catalytic oxidation treatment equipment 4 to reach the emission standard; when the adsorption tank A31 is saturated, closing the valve aI 12 and the valve aII 14, opening other valves, switching the waste gas with larger fluctuation to the adsorption tank B32 for pretreatment, introducing desorption gas which is discharged from the outlet of the catalytic oxidation treatment equipment 4 and is conveyed to the adsorption tank A31 through the upper fan 8 of the desorption pipeline 7, the electric heater 9 and the valve aIII 72 into the adsorption tank A31 for desorption treatment, and allowing the desorbed gas and the pretreated waste gas to enter the catalytic oxidation treatment equipment 4 through the valve aIV 74 for further treatment and then to reach the standard for emission; when the adsorption tank B32 is saturated, closing the valve bi 13 and the valve bi 15, opening other valves, switching the waste gas with larger fluctuation to the adsorption tank A31 for pretreatment, introducing desorption gas into the adsorption tank B32 for desorption treatment, and allowing the desorbed gas and the pretreated waste gas to enter the catalytic oxidation treatment equipment 4 through the valve bi 75 and be further treated and then to reach the standard for discharge; two adsorption tanks, one adsorbs, a desorption, switches over in proper order through switching over valve and desorption pipeline 7, and the circulation goes on, and the gas after the desorption and the waste gas of preliminary treatment together get into catalytic oxidation treatment facility 4 and further handle discharge to the effect of realization "flat valley".
The adsorption box is used as a device for eliminating peaks and leveling valleys, and the adsorption box does not need to reach the standard after adsorption, so that the use amount of an adsorbent can be reduced. And the gas at the outlet of the catalytic oxidation treatment device 4 is used as desorption gas, the waste heat is recycled, the energy is saved, and when the temperature of the gas at the outlet of the catalytic oxidation treatment device 4 is not enough, the electric heater 9 is used for heat compensation. The adsorbent may be activated carbon, molecular sieve, or the like.
As shown in fig. 1, a flame arrester 16 is installed on the transfer pipe 1 between the exhaust gas inlet 2 and the adsorber 3. The flame arrestor 16 may prevent the flame of the combustible gas from spreading when the combustible gas is being transported within the transportation conduit 1.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.
Claims (3)
1. A safe treatment device for large-fluctuation exhaust gas, characterized in that: the device comprises a waste gas inlet, an adsorber, catalytic oxidation treatment equipment and a chimney which are sequentially arranged on a conveying pipeline, wherein the adsorber comprises an adsorption tank A and an adsorption tank B which are arranged in parallel through branch pipelines, a valve aI and a valve bI are respectively arranged on the branch pipelines between the waste gas inlet and the adsorption tank A and between the waste gas inlet and the adsorption tank B, and a valve aII and a valve bII are respectively arranged on the branch pipelines between the catalytic oxidation treatment equipment and the adsorption tank A and between the catalytic oxidation treatment equipment and the adsorption tank B; a desorption pipeline opposite to the circulation direction of the waste gas in the conveying pipeline is communicated and arranged on the conveying pipeline between the catalytic oxidation treatment equipment and the chimney, the desorption pipeline extends from an outlet of the catalytic oxidation treatment equipment and passes through an adsorption box A and an adsorption box B in parallel through a desorption branch pipe to reach an inlet of the catalytic oxidation treatment equipment, gas at the outlet of the catalytic oxidation treatment equipment is used as desorption gas in the desorption pipeline, a valve aiII and a valve aiII are respectively arranged on the desorption branch pipe between the outlet of the catalytic oxidation treatment equipment and the adsorption box A and between the outlet of the catalytic oxidation treatment equipment and the adsorption box B, a valve aiIV and a valve aiIV are respectively arranged on the desorption branch pipe between the inlet of the catalytic oxidation treatment equipment and the adsorption box A and between the inlet of the catalytic oxidation treatment equipment and the adsorption box B, one adsorption and one desorption of the adsorption box A and the adsorption box B are sequentially switched through a switching valve and the desorption pipeline, circularly carrying out; and a fan and an electric heater are sequentially arranged on the desorption pipeline between the outlet of the catalytic oxidation treatment equipment and the adsorber along the flow direction of the waste gas.
2. A safety processing device for exhaust gas with large fluctuation according to claim 1, characterized in that: and a fire arrestor is arranged on the conveying pipeline between the waste gas inlet and the absorber.
3. A safe handling device for exhaust gas with large fluctuations according to claim 1 or 2, characterized in that: the adsorbent adopted in the adsorber is activated carbon or molecular sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120212480.3U CN214914697U (en) | 2021-01-26 | 2021-01-26 | A safe processing apparatus for big undulant waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120212480.3U CN214914697U (en) | 2021-01-26 | 2021-01-26 | A safe processing apparatus for big undulant waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214914697U true CN214914697U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120212480.3U Active CN214914697U (en) | 2021-01-26 | 2021-01-26 | A safe processing apparatus for big undulant waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214914697U (en) |
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2021
- 2021-01-26 CN CN202120212480.3U patent/CN214914697U/en active Active
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