CN208952133U - A kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system - Google Patents
A kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system Download PDFInfo
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- CN208952133U CN208952133U CN201821275515.2U CN201821275515U CN208952133U CN 208952133 U CN208952133 U CN 208952133U CN 201821275515 U CN201821275515 U CN 201821275515U CN 208952133 U CN208952133 U CN 208952133U
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Abstract
The utility model discloses a kind of nonstationary state catalytic combustion system for handling extremely low concentration petroleum refining industry VOCS, cylindrical tube reactor is insulated including sealing, sealed jacket is externally provided in cylinder, aerogel blanket filled layer is equipped between cylinder and collet, in the upper of cylinder, lower both ends be respectively equipped with into, gas outlet, into, gas outlet is correspondingly provided with motor-driven valve, into, pass through connection between the motor-driven valve of gas outlet, it is correspondingly provided with the time relay on the line, on, lower air inlet passes through admission line respectively and connect with petroleum refining industry VOCS gas source, on, lower gas outlet passes through outlet pipe respectively and connect with system exhaust, catalyst bed is equipped in the middle part of inner barrel cavity, gas distributor, recuperation layer, it is set between cylinder and aerogel blanket filled layer and in region corresponding with catalyst bed position There is electric heater, be catalyzed burning using flow direction transformation, realizes catalyst combustion reaction from maintenance, easy to operate, saving cost, high catalytic efficiency.
Description
Technical field
The utility model belongs to emission-control equipment, and in particular to a kind of to handle extremely low concentration petroleum refining industry VOCS's
Nonstationary state catalytic combustion system.
Background technique
Currently, organic exhaust gas discharge typically directly discharges or by discharging after ordinary combustion, direct emission pollutes environment, general
Logical burning is at high cost in the presence of burning, and apparatus structure is complicated, and ignition temperature is high, and there are security risks.
Summary of the invention
In order to solve the problems, such as in background technique, it is non-that the utility model discloses a kind of processing low concentration petroleum refining industry VOCS
Stationary state catalytic combustion system, using flow direction convert catalysis burning, realize catalyst combustion reaction from maintain, it is easy to operate, save at
Originally, high catalytic efficiency.
In order to achieve the above-mentioned object of the invention, the utility model adopts the following technical solutions:
A kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, the device include adiabatic catalytic combustion
Reactor is burnt, the reactor is sealing cylinder cylinder 18, sealed jacket is externally provided in cylinder 18, between cylinder 18 and collet
Equipped with aerogel blanket filled layer 15, air inlet and air outlet are respectively equipped in the upper/lower terminal of cylinder 18, in air inlet and are gone out
Port is correspondingly provided with motor-driven valve, right on the line by connection between air inlet motor-driven valve and gas outlet motor-driven valve
It should be equipped with the time relay, upper and lower air inlet passes through admission line respectively and connect with petroleum refining industry VOCS gas source 1, above and below
Gas outlet passes through outlet pipe respectively and connect with system exhaust 13, and catalyst bed is equipped in the middle part of 18 internal cavities of cylinder
12, gas distributor, recuperation layer are respectively equipped in the cavity between the upper and lower port and catalyst bed 12 of cylinder 18,
Between cylinder 18 and aerogel blanket filled layer 15 and in the annular region of 12 opposite position of catalyst bed be equipped with electric heating
Device 16.
Described device further includes anti-temperature runaway system, anti-temperature runaway system include the second air compressor machine 2B, thermostat valve 8, temperature controller 9,
Thermocouple 17, air intlet 10 and corresponding air pipeline, air intlet 10 and thermocouple 17 interval be located on cylinder 18 and with
12 opposite position of catalyst bed, air intlet 10 is connect by air pipeline with the second air compressor machine 2B, in the air hose
Pressure maintaining valve 3 and thermostat valve 8 are successively arranged on road, thermocouple 17 is connect by route with 9 input terminal of temperature controller, and temperature controller 9 exports
End is connect with thermostat valve 8, and the second air compressor machine 2B passes through the air intlet 10 and catalyst bed 12 on air pipeline and reactor
Connection.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, cylinder 18 enterprising port,
Upper gas outlet is correspondingly provided with enterprising port motor-driven valve 6B, upper gas outlet motor-driven valve 19B, enterprising port motor-driven valve 6B and upper gas outlet
Connected between motor-driven valve 19B by route B, on route B be equipped with time relay B7B, cylinder 18 lower air inlet, under
Gas outlet is correspondingly provided with lower air inlet motor-driven valve 6A, lower gas outlet motor-driven valve 19A, lower air inlet motor-driven valve 6A and lower gas outlet electricity
It is connected between dynamic valve 19A by route A, time relay A7A is equipped on route A.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, enterprising port motor-driven valve 6B, under
Air inlet motor-driven valve 6A is correspondingly connected with the upper and lower air inlet of cylinder 18 respectively, upper gas outlet motor-driven valve 19B, lower gas outlet electricity
Dynamic valve 19A is correspondingly connected with the upper and lower gas outlet of cylinder 18 respectively, and the starting of electrically operated valve and the flow direction of reactant convert difference
It is controlled to adjust by time relay A7A and time relay B7B, wherein time relay A7A adjusts lower air inlet motor-driven valve
6A and lower gas outlet motor-driven valve 19A, time relay B7B adjust enterprising port motor-driven valve 6B and upper gas outlet motor-driven valve 19B, when
Between relay is corresponding controls electronic valve events and guarantee lower air inlet motor-driven valve 6A and upper gas outlet motor-driven valve 19B open and close simultaneously, on
Air inlet motor-driven valve 6B and lower gas outlet motor-driven valve 19A open and close simultaneously, also, the air inlet motor-driven valve for being located at same port is opened
Gas outlet motor-driven valve is closed when opening, and gas outlet motor-driven valve is opened when the air inlet motor-driven valve of same port is closed, low concentration petroleum
It refines industry VOCS gas and alternately enters adiabatic catalytic reactor transformation period according to certain flowing to.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, recuperation layer includes upper heat storage
11A, lower heat storage 11B, upper heat storage 11A and lower heat storage 11B respectively correspond the upper and lower port that cylinder 18 is arranged in and catalysis
In cavity between agent bed 12, recuperation layer is integral honeycomb shape dichroite-mullite heat storage.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, gas distributor includes upper gas
Distributor 14A, lower gas distributor 14B, upper gas distributor 14A be arranged in cylinder 18 upper port and upper heat storage 11A it
Between cavity in, lower gas distributor 14B is arranged in the cavity between the lower port of cylinder 18 and lower heat storage 11B.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, in petroleum refining industry VOCS gas
The first air compressor machine 2A, pressure maintaining valve 3, mass flow are successively arranged on the admission line that source 1 is connect with the upper and lower air inlet of cylinder 18
Count 4, pressure gauge 5.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, catalyst are integral honeycomb shape
Metal oxide catalyst.
Due to the adoption of the above technical scheme, the utility model have it is following the utility model has the advantages that
1. the utility model uses adiabatic reactor, and sets heat storage in reactor, initial reaction stage discharges heat storage
In heat storage, change airintake direction, using the storage subsequent gas into reactor of heat, makes catalyst combustion reaction
It goes on smoothly, realizes catalyst combustion reaction from maintenance；
2. the utility model uses anti-temperature runaway system, system can be made to have hot spot rapidly to drop to bulk temperature when occurring
Within the scope of the temperature of safety, prevent heat storage internal temperature excessively high and the risk exploded；
3. the utility model uses gas distributor, monoblock type heat storage and monolithic catalyst, make system pressure loss
Small, catalytic efficiency and heat storage performance are good.
Detailed description of the invention
Attached drawing 1 is the utility model section view；
2 the utility model reactor F of attached drawing is to sectional view；
3 containing benezene petroleum refining industry VOCS gas of attached drawing is catalyzed combustion transformation capability；
4 gas flow of attached drawing from the top down when reaction bed temperature distribution map；
5 gas flow of attached drawing from bottom to top when reaction bed temperature distribution map；
In figure: 1, petroleum refining industry VOCS gas source；2A, the first air compressor machine；2B, the second air compressor machine；3, pressure maintaining valve；4, matter
Measure flowmeter；5, pressure gauge；6A, lower air inlet motor-driven valve；6B, enterprising port motor-driven valve；7A, time relay A；7B, time
Relay B；8, thermostat valve；9, temperature controller；10, air intlet；11A, upper heat storage；11B, lower heat storage；12, catalyst bed
Layer；13, system exhaust；14A, upper gas distributor；14B, lower gas distributor；15, aerogel blanket filled layer；16, electricity adds
Hot device；17, thermocouple；18, cylinder；19A, lower gas outlet motor-driven valve；19B, upper gas outlet motor-driven valve.
Specific embodiment
By the following examples can detailed explanation the utility model, open the purpose of this utility model is intended to protect
All technological improvements in the scope of the utility model.
A kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system in conjunction with described in attached drawing 1-2, should
Device includes adiabatic catalytic combustion reactor, and the reactor is sealing cylinder cylinder 18, is externally provided with sealed jacket in cylinder 18,
Between cylinder 18 and collet be equipped with aerogel blanket filled layer 15, the upper/lower terminal of cylinder 18 be respectively equipped with air inlet and
Gas outlet is correspondingly provided with motor-driven valve in air inlet and air outlet, passes through line between air inlet motor-driven valve and gas outlet motor-driven valve
Road connection, is correspondingly provided with the time relay, upper and lower air inlet passes through admission line and petroleum refining work on the route
Industry VOCS gas source 1 connects, and upper and lower gas outlet passes through outlet pipe and connect with system exhaust 13, in 18 internal cavities of cylinder
Middle part is equipped with catalyst bed 12, is respectively equipped with gas in the cavity between the upper and lower port and catalyst bed 12 of cylinder 18
Body distributor, recuperation layer, between cylinder 18 and aerogel blanket filled layer 15 with the corresponding annulus of 12 position of catalyst bed
Electric heater 16 is equipped in domain.
Described device further includes anti-temperature runaway system, anti-temperature runaway system include the second air compressor machine 2B, thermostat valve 8, temperature controller 9,
Thermocouple 17, air intlet 10 and corresponding air pipeline, air intlet 10 and thermocouple 17 interval be located on cylinder 18 and with
12 opposite position of catalyst bed, air intlet 10 is connect by air pipeline with the second air compressor machine 2B, in the air hose
Pressure maintaining valve 3 and thermostat valve 8 are successively arranged on road, thermocouple 17 is connect by route with 9 input terminal of temperature controller, and temperature controller 9 exports
End is connect with thermostat valve 8, and the second air compressor machine 2B passes through the air intlet 10 and catalyst bed 12 on air pipeline and reactor
Connection.
Anti- temperature runaway system is arranged in the utility model, prevents catalyst combustion reaction release heat unstable and generates reactor
Temperature runaway phenomenon, when 12 temperature of catalyst bed is more than the temperature of setting, thermocouple 17 delivers a signal to temperature controller 9, temperature controller 9
Output end controls thermostat valve 8 and automatically turns on, and air blower 2B, which is passed through Cryogenic air into reactor, makes catalyst bed 12 cool down,
After 12 temperature of catalyst bed lowers, thermostat valve 8 is automatically closed, and is stopped air and is entered, restarts catalyst combustion reaction.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, cylinder 18 enterprising port,
Upper gas outlet is correspondingly provided with enterprising port motor-driven valve 6B, upper gas outlet motor-driven valve 19B, enterprising port motor-driven valve 6B and upper gas outlet
Connected between motor-driven valve 19B by route B, on route B be equipped with time relay B7B, cylinder 18 lower air inlet, under
Gas outlet is correspondingly provided with lower air inlet motor-driven valve 6A, lower gas outlet motor-driven valve 19A, lower air inlet motor-driven valve 6A and lower gas outlet electricity
It is connected between dynamic valve 19A by route A, time relay A7A is equipped on route A.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, enterprising port motor-driven valve 6B, under
Air inlet motor-driven valve 6A and the upper and lower air inlet of cylinder 18 are correspondingly connected with, upper gas outlet motor-driven valve 19B, lower gas outlet motor-driven valve
The upper and lower gas outlet of 19A and cylinder 18 are correspondingly connected with, and the starting of valve and the flow direction transformation of reactant pass through time relay respectively
Device A7A, time relay B7B are controlled to adjust, wherein time relay A7A adjusts lower air inlet motor-driven valve 6A and lower gas outlet
Motor-driven valve 19A, time relay B7B adjust enterprising port motor-driven valve 6B and upper gas outlet motor-driven valve 19B, and the time relay is corresponding
It controls electronic valve events and guarantees lower air inlet motor-driven valve 6A and upper gas outlet motor-driven valve 19B open and close simultaneously, enterprising port motor-driven valve
6B and lower gas outlet motor-driven valve 19A simultaneously open and close, also, be located at same port air inlet motor-driven valve open when gas outlet electricity
Dynamic valve is closed, and gas outlet motor-driven valve is opened when the air inlet motor-driven valve of same port is closed, low concentration petroleum refining industry VOCS
Gas alternately enters adiabatic catalytic reactor transformation period according to certain flowing to.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, recuperation layer includes upper heat storage
11A, lower heat storage 11B, upper heat storage 11A and lower heat storage 11B respectively correspond the upper and lower port that cylinder 18 is arranged in and catalysis
In cavity between agent bed 12, recuperation layer is integral honeycomb shape dichroite-mullite heat storage.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, gas distributor includes upper gas
Distributor 14A, lower gas distributor 14B, upper gas distributor 14A be arranged in cylinder 18 upper port and upper heat storage 11A it
Between, lower gas distributor 14B is arranged between the lower port of cylinder 18 and lower heat storage 11B.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, in petroleum refining industry VOCS gas
Be successively arranged on the admission line that source 1 is connect with the air inlet of cylinder 18 first air compressor machine 2A, pressure maintaining valve 3, mass flowmenter 4,
Pressure gauge 5.
The processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, catalyst are integral honeycomb shape
Metal oxide catalyst.
Utility model works process is as follows:
In conjunction with attached drawing 1-2, when enterprising port motor-driven valve 6B is opened, petroleum refining industry VOCS gas is enterprising from reactor
Port enters reactor, passes sequentially through gas distributor 14A, upper heat storage 11A, and heat by and by heat storage 11A, passes through
After 12 combustion reaction heat release of catalyst bed, heat is released into reaction and is transmitted to after the heat storage 11B of lower semisection successively by lower gas
Body distributor 14B, lower gas outlet motor-driven valve 19A, 13 discharge system of system exhaust；In next cycle, lower air inlet is electronic
When valve 6B is opened, reversely air inlet enters reactor to petroleum refining industry VOCS gas under reactor, passes sequentially through lower gas
Distributor 14B, lower heat storage 11B, and heated by and by heat storage 11B, it, will after 12 combustion reaction heat release of catalyst bed
Reaction is released heat and is transmitted to after 11A successively by upper gas distributor 14A, upper gas outlet motor-driven valve 19B, system exhaust 13
Discharge system, in conjunction with attached drawing 4,5 first half cycle of attached drawing, from the top down, the temperature of catalyst bed 12 is with bed for gas flow
Height increases and increases, the later half period, and from bottom to top, catalytic bed bed temperature drops air flow direction as bed height increases
It is low.
In conjunction with attached drawing 3, the utility model processing capacity is 1000m3/h, and concentration is respectively 500mg/m3 、1500mg/m3、
2500mg/m3 、3500mg/m3、4500mg/m3Containing benezene petroleum refining industry VOCS gas, gas by blower 2A convey through upper
Air inlet motor-driven valve 6B enters in adiabatic catalytic combustion reactor, gas pass sequentially through from top to bottom gas distributor 14A, on
Heat storage 11A, catalyst bed are heated to 250-280 DEG C by electric heater 16, reach the initiation temperature of the exhaust gas, catalysis burning
Reaction starts, and closes electric heater 16 at this time, with the progress of reaction, increases reaction end gas temperature due to exothermic heat of reaction,
The partial tail gas enters in lower heat storage 11B, and heat is stored in lower heat storage 11B, and tail gas is successively distributed by lower gas
Device 14B, lower gas outlet motor-driven valve 19A, 13 discharge system of system exhaust；In next cycle, same process, containing benezene stone
Oil refining industry VOCS gas enters in system through blower 2A, and lower air inlet motor-driven valve 6A is opened, and gas reversely passes through from bottom to top
Lower gas distributor 14B, lower heat storage 11B, and heat is stored in heat storage 11B, heated gas is by catalysis
Bed 12 combustion reaction heat release of oxidant layer, tail gas by heat be transmitted to after upper heat storage 11A through upper gas distributor 14A, unlatching it is upper go out
13 discharge system of port motor-driven valve 19B and system exhaust, concentration is respectively 500mg/m3、1500mg/m3、2500mg/m3、
3500mg/m3、4500mg/m3Containing benezene petroleum refining industry VOCS gas in the present invention by catalysis burning after, conversion
Rate reaches 90% or more.
The non-detailed portion of the utility model is the prior art.
The embodiment selected herein to disclose the goal of the invention of the utility model, is presently considered to be suitable,
However, it should be understood that the utility model is intended to include the institute for the embodiment that all belong within the scope of this design and utility model
It changes and improves.
Claims (7)
1. a kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system, it is characterised in that: the device includes
Adiabatic catalytic combustion reactor, the reactor are sealing cylinder cylinder (18), sealed jacket are externally provided in cylinder (18), in cylinder
Aerogel blanket filled layer (15) are equipped between body (18) and collet, are respectively equipped with air inlet in the upper/lower terminal of cylinder (18)
And gas outlet, it is correspondingly provided with motor-driven valve in air inlet and air outlet, is passed through between air inlet motor-driven valve and gas outlet motor-driven valve
Connection is correspondingly provided with the time relay on the route, and upper and lower air inlet passes through admission line respectively and petroleum refines
Industry VOCS gas source (1) connection is made, upper and lower gas outlet passes through outlet pipe respectively and connect with system exhaust (13), in cylinder
(18) catalyst bed (12) are equipped in the middle part of internal cavities, between the upper and lower port and catalyst bed (12) of cylinder (18)
Cavity in be respectively equipped with gas distributor, recuperation layer, between cylinder (18) and aerogel blanket filled layer (15) and with urge
Electric heater (16) are equipped in the corresponding region in agent bed (12) position.
2. a kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system according to claim 1, special
Sign is: described device further includes anti-temperature runaway system, and anti-temperature runaway system includes the second air compressor machine (2B), thermostat valve (8), temperature controller
(9), thermocouple (17), air intlet (10) and corresponding air pipeline, air intlet (10) and thermocouple (17) interval are located at
On cylinder (18) and corresponding with catalyst bed (12) position, air intlet (10) passes through air pipeline and the second air compressor machine (2B)
Connection, is successively arranged pressure maintaining valve (3) and thermostat valve (8) on the air pipeline, and thermocouple (17) passes through route and temperature controller
(9) connection of input terminal, temperature controller (9) output end are connect with thermostat valve (8), and the second air compressor machine (2B) is by air pipeline and instead
The air intlet (10) on device is answered to connect with catalyst bed (12).
3. a kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system according to claim 1, special
Sign is: respectively corresponding in the enterprising port of cylinder (18), upper gas outlet equipped with enterprising port motor-driven valve (6B), upper gas outlet electricity
Dynamic valve (19B), is connect, on route B by route B between enterprising port motor-driven valve (6B) and upper gas outlet motor-driven valve (19B)
Equipped with time relay B(7B), respectively correspond in the lower air inlet of cylinder (18), lower gas outlet equipped with lower air inlet motor-driven valve
(6A), lower gas outlet motor-driven valve (19A) passes through route A between lower air inlet motor-driven valve (6A) and lower gas outlet motor-driven valve (19A)
Connection is equipped with time relay A(7A on route A).
4. a kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system according to claim 1, special
Sign is: recuperation layer includes upper heat storage (11A), lower heat storage (11B), and upper heat storage (11A) and lower heat storage (11B) are respectively
It is correspondingly arranged in the cavity between the upper and lower port of cylinder (18) and catalyst bed (12), recuperation layer is integral honeycomb
Shape dichroite-mullite heat storage.
5. a kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system according to claim 4, special
Sign is: gas distributor includes upper gas distributor (14A), lower gas distributor (14B), and upper gas distributor (14A) sets
It sets between the upper port and upper heat storage (11A) of cylinder (18), lower end of lower gas distributor (14B) setting in cylinder (18)
Between mouth and lower heat storage (11B).
6. a kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system according to claim 1, special
Sign is: successively setting on the admission line that petroleum refining industry VOCS gas source (1) is connect with the upper and lower air inlet of cylinder (18)
There are the first air compressor machine (2A), pressure maintaining valve (3), mass flowmenter (4), pressure gauge (5).
7. a kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system according to claim 1, special
Sign is: catalyst is integral honeycomb shape metal oxide catalyst.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821275515.2U CN208952133U (en) | 2018-08-09 | 2018-08-09 | A kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821275515.2U CN208952133U (en) | 2018-08-09 | 2018-08-09 | A kind of processing low concentration petroleum refining industry VOCS nonstationary state catalytic combustion system |
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| CN208952133U true CN208952133U (en) | 2019-06-07 |
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ID=66733433
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260343A (en) * | 2019-06-19 | 2019-09-20 | 西南化工研究设计院有限公司 | A kind of system and method for the heat-storage catalytic of organic exhaust gas containing VOCs burning |
| CN111735068A (en) * | 2020-06-10 | 2020-10-02 | 苏州华烯环保科技有限公司 | Waste gas catalytic combustion device |
| CN112393556A (en) * | 2020-10-15 | 2021-02-23 | 安顺学院 | Drying device and drying method for feed |
-
2018
- 2018-08-09 CN CN201821275515.2U patent/CN208952133U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260343A (en) * | 2019-06-19 | 2019-09-20 | 西南化工研究设计院有限公司 | A kind of system and method for the heat-storage catalytic of organic exhaust gas containing VOCs burning |
| CN111735068A (en) * | 2020-06-10 | 2020-10-02 | 苏州华烯环保科技有限公司 | Waste gas catalytic combustion device |
| CN112393556A (en) * | 2020-10-15 | 2021-02-23 | 安顺学院 | Drying device and drying method for feed |
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