CN202061548U - Low-density methane gas runner catalytic oxidation device - Google Patents
Low-density methane gas runner catalytic oxidation device Download PDFInfo
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- CN202061548U CN202061548U CN2011201662843U CN201120166284U CN202061548U CN 202061548 U CN202061548 U CN 202061548U CN 2011201662843 U CN2011201662843 U CN 2011201662843U CN 201120166284 U CN201120166284 U CN 201120166284U CN 202061548 U CN202061548 U CN 202061548U
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Abstract
The utility model discloses a low-density methane gas runner catalytic oxidation device comprising a heat accumulator, a rotating shaft is mounted in the center of the heat accumulator and supported by bearings at two ends of the heat accumulator, the rotating shaft is connected with a motor through a transmission mechanism, a thermal insulation layer is arranged outside the heat accumulator and cavities are arranged at two ends in the axial direction of the heat accumulator, one cavity is divided into a first inlet cavity and a first exhaust cavity by one partition board at one end and the other cavity is divided into a second exhaust cavity and a second inlet cavity by another partition board at the other end, and the first inlet cavity, the first exhaust cavity, the second exhaust cavity and the second inlet cavity are connected with a first inlet pipe, a first exhaust pipe, a second exhaust pipe and a second inlet pipe respectively. The low-density methane gas runner catalytic oxidation device is suitable for the field of low-density methane gas emission reduction and use, and has the advantages that the airflow direction is not needed to be changed in the running process of the device, the structure is simple and the internal pressure is stable in the running.
Description
Technical field
The utility model relates to a kind of catalytic oxidizing equipment, is specifically related to the catalytic oxidizing equipment of gas.
Background technology
Gas is the main greenhouse gas that is only second to carbon dioxide, and the greenhouse effects that unit mass gas is produced are equivalent to 21 times of homogenous quantities carbon dioxide.Coal mine methane is one of main gas industrial emission source, reduces discharging coal mine wind-lack gas, can reduce greenhouse gas emission.Simultaneously, the main component of coal mine gas is a methane, is the gas energy of high-quality cleaning.Methane concentration in the coal mine methane very low (being generally less than 1%), the fluctuation of concentration scope is big, and these characteristics have determined coal mine wind-lack gas to be difficult to utilize conventional burners directly to burn under the situation of auxiliary fuel not having.At present, the methane in recovery and the processing mine air-lack is all attempted in nearly all colliery, and directly it is discharged among the atmosphere, and this not only causes the huge waste of resource, and atmospheric environment is caused serious pollution.
In the prior art, the use device of relevant coal mine methane has the CFRR catalytic burner of Canadian CANMET energy technology development and the heating power TFRR burner that can be used for handling coal mine methane that U.S. Sequa company announces in the MEGTEC system.Its operation principle is to adopt the recoverable heat interchanger to realize the energy transmission between the gas-solid and shift, and catalyst is used to reduce the activation energy of reaction, thereby reduces the ventilation air gas oxidizing reaction temperature, makes that reaction is easier to be carried out.When device starts,, make reactor central authorities temperature reach firing temperature (1000 ℃) by the heat storage of the pre-thermal reactor of electrical heating elements, mine air-lack is with a direction inflow and pass through reactor, gas is heated by heat storage, and temperature improves constantly, until methane oxidation.Then, the hot gas of oxidation continues to move to the another side of reactor, heat transferred catalyst layer and heat storage medium and cooling gradually.Along with constantly entering of gas, reactor inlet one side temperature reduces gradually, and the outlet side temperature raises gradually.Do not have enough heats gas to be heated to before the oxidizing temperature at entrance side, begin commutation, gas flow direction is reversed, and from other end air inlet, repeats above-mentioned course of reaction.The key of this reactor is the continuous conversion flow direction of gas that will send in the reactor, makes the gas intensification of absorbing heat in heat storage, to guarantee keeping certainly of oxidizing process.The TFRR reactor is identical with textural cardinal principle in operation principle with the CFRR reactor, and the main distinction is that the CFRR reactor has used oxidation catalyst, has reduced the needed temperature of gas oxidation.
Existing technology has the following disadvantages: (1) weary wind need carry out the periodicity commutation in oxidation unit, the self-operating of ability holdout device is finished the complexity that the required pipeline of commutation function, valve and control system have increased system, and the operation maintenance difficulty.(2) for making device can keep self-operating, airflow-reversing is short cycle time, the motor-driven valve frequent movement, this not only can influence the service life of magnetic valve, and pressure generation strong variations in the commutation moment device, device needs a period of time could recover stable, influences device stable operation.
Summary of the invention
For solving the prior art above shortcomings, the utility model provides and need not to change airflow direction, and apparatus structure is simple, a kind of low concentration gas runner catalytic oxidizing equipment of internal pressure stabilises during operation.
The technical scheme that the utility model overcomes the above problems is: a kind of low concentration gas runner catalytic oxidizing equipment, comprise heat storage, and described heat storage center is equipped with turning cylinder, by being arranged on the bearings at heat storage two ends.Turning cylinder links to each other with motor by transmission mechanism.The heat storage outside is provided with the insulation layer, axially two ends are provided with chamber, one end is provided with dividing plate chamber is divided into first inlet plenum, first exhaust chamber, other end dividing plate is divided into first exhaust chamber with the chamber correspondence, first inlet plenum, described first inlet plenum, first exhaust chamber, second exhaust chamber, second inlet plenum are connected with first air inlet pipe, downtake pipe, second exhaust pipe, second air inlet pipe respectively.
Furthermore, above-mentioned heat storage is circular ceramic honey comb accumulation of heat runner, in be provided with vertically minim channel, channel surface scribbles the gas oxidation catalyst.Circular ceramic honey comb accumulation of heat runner has stronger heat storage capacity, and minim channel be provided with the abundant heating that is beneficial to gas, it is temperature required that the gas oxidation catalyst can reduce the gas oxidation.
Furthermore, above-mentioned motor is connected with controller.Controller can be regulated control runner rotary speed according to the actual motion needs, thereby improves unit efficiency.
State technical scheme owing to adopt to have gone up, the beneficial effects of the utility model are:
1) in the utility model, the air inlet that contains low concentration gas is from the staggered reverse accumulation of heat runner that enters in device two ends, transmission mechanism drives runner and rotates continuously with lower speed, make accumulation of heat runner inlet end and exhaust end change continuously, oxidation reaction keeps certainly in the assurance device, reduced the airflow-reversing system, apparatus structure is simpler, and safeguards easily.
When 2) the utility model moves, need not change airflow direction, the device internal pressure is stable, has improved the device internal pressure acute variation that existing oxidation unit causes because of the frequent commutation of air-flow, thereby has improved the stability that system moves.
The utility model can be used for handling the low concentration gas that low concentration gas in the coal mine methane or colliery extraction system discharge, and also can be used for the reduction of discharging and the utilization of refuse landfill, sewage treatment plant or the low concentration gas that other occasions produced.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an A-A profile shown in Figure 1.
Fig. 3 is a B-B profile shown in Figure 1 ,+,-represent air inlet and exhaust respectively.
Fig. 4 is a C-C profile shown in Figure 1 ,+,-represent air inlet and exhaust respectively.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figure 1, a kind of low concentration gas runner catalytic oxidizing equipment, device is made up of circular ceramic honey comb accumulation of heat runner 1, first inlet plenum 2, first exhaust chamber 3, second inlet plenum 4, second exhaust chamber 5, first air inlet pipe 6, downtake pipe 7, second air inlet pipe 8, second exhaust pipe 9, insulation layer 10, motor 11, transmission mechanism 12, turning cylinder 13, dividing plate 14, spring bearing 17, controller 18.Circular ceramic honey comb accumulation of heat runner 1 is positioned at whole device center, and the device left end is provided with first inlet plenum 2 and first exhaust chamber 3, and right-hand member is provided with second inlet plenum 4 and second exhaust chamber 5; First inlet plenum 2 and second inlet plenum 4, first exhaust chamber 3 and second exhaust chamber 5 lay respectively at circular ceramic honey comb accumulation of heat runner 1 two ends, interlaced arrangement is up and down middlely separated by dividing plate 14, leaves gap 15 between circular ceramic honey comb accumulation of heat runner 1 and the insulation layer 10.Turning cylinder 13 is equipped with at circular ceramic honey comb accumulation of heat runner 1 center, and turning cylinder 13 is supported by the bearing 17 that is installed in circular ceramic honey comb accumulation of heat runner 1 two ends, and is connected with motor 11 by transmission mechanism 12, and motor 11 is connected with controller 18.
As Fig. 1, shown in Figure 2, in circular ceramic honey comb accumulation of heat runner 1 inside, be provided with along runner shaft to small gas channel 16, channel inner surface scribbles the gas oxidation catalyst.
As Fig. 1, Fig. 3, shown in Figure 4, during the device operation, the air inlet that contains low concentration gas is sent into first inlet plenum 2 and second inlet plenum 4 from device two ends, the left and right sides respectively by first air inlet pipe 6 and second air inlet pipe 8, the gas that enters in the inlet plenum further flows in the circular ceramic honey comb accumulation of heat runner 1 internal gas flow passage 16 that communicates with inlet plenum, forms the air-flow of two bursts of reverse flows up and down.Gas is by circular ceramic honey comb accumulation of heat runner 1 inlet end, under heat effect, temperature raises, simultaneously under the effect of the gas oxidation catalyst around the gas channel 16, gas generation oxidation reaction in the air-flow, generate carbon dioxide and water, emit heat simultaneously, and heat is passed to the exhaust end of circular ceramic honey comb accumulation of heat runner 1, gas is from first exhaust chamber 3 afterwards, second exhaust chamber 5 is discharged, and insulation layer 10 is kept at heat in the device in the whole process, reduces thermal loss.Motor 11 drives circular ceramic honey comb accumulation of heat runner 1 by transmission mechanism 12 and rotates continuously with lower speed, make the inlet end of temperature reduction originally be transformed into exhaust end, and the exhaust end that temperature has promoted is transformed into inlet end, makes being heated by high temperature that air inlet can continue.Because the inlet end and the exhaust end of circular ceramic honey comb accumulation of heat runner 1 are changed continuously, and the insulation effect of insulation layer 10, thereby guaranteed keeping voluntarily of the interior oxidation reaction of device.Install in servicely, controller 18 is controlled transmission mechanism as required, thereby reaches the speed of regulating circular ceramic honey comb accumulation of heat runner 1 rotary speed.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not influence effect and practical applicability that the utility model is implemented.
Claims (3)
1. a low concentration gas runner catalytic oxidizing equipment comprises heat storage, it is characterized in that: described heat storage center is equipped with turning cylinder, by being arranged on the bearings at heat storage two ends; Turning cylinder links to each other with motor by transmission mechanism; The heat storage outside is provided with the insulation layer, axially two ends are provided with chamber, one end is provided with dividing plate chamber is divided into first inlet plenum, first exhaust chamber, other end dividing plate is divided into second exhaust chamber with the chamber correspondence, second inlet plenum, described first inlet plenum, first exhaust chamber, second exhaust chamber, second inlet plenum are connected with first air inlet pipe, downtake pipe, second exhaust pipe, second air inlet pipe respectively.
2. at low concentration gas runner catalytic oxidizing equipment according to claim 1, it is characterized in that: described heat storage is circular ceramic honey comb accumulation of heat runner, and its inside is provided with small gas channel vertically, and channel inner surface scribbles the gas oxidation catalyst.
3. low concentration gas runner catalytic oxidizing equipment according to claim 1, it is characterized in that: described motor is connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201662843U CN202061548U (en) | 2011-05-24 | 2011-05-24 | Low-density methane gas runner catalytic oxidation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201662843U CN202061548U (en) | 2011-05-24 | 2011-05-24 | Low-density methane gas runner catalytic oxidation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202061548U true CN202061548U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201662843U Expired - Fee Related CN202061548U (en) | 2011-05-24 | 2011-05-24 | Low-density methane gas runner catalytic oxidation device |
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| CN (1) | CN202061548U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228792A (en) * | 2011-05-24 | 2011-11-02 | 湖南科技大学 | Rotating wheel catalytic oxidation apparatus for low-concentration gas |
| CN103643986A (en) * | 2013-11-21 | 2014-03-19 | 中国矿业大学 | Self-backheating type coal mine low-concentration gas and ventilation gas cooperative oxidation integrated device |
| CN105822339A (en) * | 2016-04-13 | 2016-08-03 | 山东理工大学 | Mechanical adjusting type gas inlet and flow equalization system of ventilation air methane thermal reverse-flow oxidization device |
-
2011
- 2011-05-24 CN CN2011201662843U patent/CN202061548U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228792A (en) * | 2011-05-24 | 2011-11-02 | 湖南科技大学 | Rotating wheel catalytic oxidation apparatus for low-concentration gas |
| CN103643986A (en) * | 2013-11-21 | 2014-03-19 | 中国矿业大学 | Self-backheating type coal mine low-concentration gas and ventilation gas cooperative oxidation integrated device |
| CN103643986B (en) * | 2013-11-21 | 2015-07-15 | 中国矿业大学 | Self-backheating type coal mine low-concentration gas and ventilation gas cooperative oxidation integrated device |
| CN105822339A (en) * | 2016-04-13 | 2016-08-03 | 山东理工大学 | Mechanical adjusting type gas inlet and flow equalization system of ventilation air methane thermal reverse-flow oxidization device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hao Xiaoli Inventor after: Feng Tao Inventor after: Wang Pengfei Inventor after: Chen Lijuan Inventor after: Lv Yi Inventor after: Xie Donghai Inventor after: Zhu Zhuohui Inventor before: He Xiaoli Inventor before: Feng Tao Inventor before: Wang Pengfei Inventor before: Chen Lijuan Inventor before: Lv Yi Inventor before: Xie Donghai Inventor before: Zhu Zhuohui |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HE XIAOLI FENG TAO WANG PENGFEI CHEN LIJUAN LV YI XIE DONGHAI ZHU ZHUOHUI TO: HAO XIAOLI FENG TAO WANG PENGFEI CHEN LIJUAN LV YI XIE DONGHAI ZHU ZHUOHUI |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20140524 |