CN108087897A - A kind of coal mine light concentration mash gas gas catalytic combustion heat-energy utilizing device - Google Patents
A kind of coal mine light concentration mash gas gas catalytic combustion heat-energy utilizing device Download PDFInfo
- Publication number
- CN108087897A CN108087897A CN201810152039.3A CN201810152039A CN108087897A CN 108087897 A CN108087897 A CN 108087897A CN 201810152039 A CN201810152039 A CN 201810152039A CN 108087897 A CN108087897 A CN 108087897A
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- China
- Prior art keywords
- heat
- gas
- catalytic
- temperature
- catalytic bed
- Prior art date
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- 238000007084 catalytic combustion reaction Methods 0.000 title claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000003245 coal Substances 0.000 title claims abstract description 13
- 235000006085 Vigna mungo var mungo Nutrition 0.000 title claims abstract description 10
- 240000005616 Vigna mungo var. mungo Species 0.000 title claims abstract description 10
- 230000003197 catalytic Effects 0.000 claims abstract description 40
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nODVweCcgaGVpZ2h0PSc4NXB4JyB2aWV3Qm94PScwIDAgODUgODUnPgo8IS0tIEVORCBPRiBIRUFERVIgLS0+CjxyZWN0IHN0eWxlPSdvcGFjaXR5OjEuMDtmaWxsOiNGRkZGRkY7c3Ryb2tlOm5vbmUnIHdpZHRoPSc4NS4wJyBoZWlnaHQ9Jzg1LjAnIHg9JzAuMCcgeT0nMC4wJz4gPC9yZWN0Pgo8dGV4dCB4PScxMy4zJyB5PSc1My42JyBjbGFzcz0nYXRvbS0wJyBzdHlsZT0nZm9udC1zaXplOjIzcHg7Zm9udC1zdHlsZTpub3JtYWw7Zm9udC13ZWlnaHQ6bm9ybWFsO2ZpbGwtb3BhY2l0eToxO3N0cm9rZTpub25lO2ZvbnQtZmFtaWx5OnNhbnMtc2VyaWY7dGV4dC1hbmNob3I6c3RhcnQ7ZmlsbDojRTg0MjM1JyA+SDwvdGV4dD4KPHRleHQgeD0nMjguMicgeT0nNjIuOScgY2xhc3M9J2F0b20tMCcgc3R5bGU9J2ZvbnQtc2l6ZToxNXB4O2ZvbnQtc3R5bGU6bm9ybWFsO2ZvbnQtd2VpZ2h0Om5vcm1hbDtmaWxsLW9wYWNpdHk6MTtzdHJva2U6bm9uZTtmb250LWZhbWlseTpzYW5zLXNlcmlmO3RleHQtYW5jaG9yOnN0YXJ0O2ZpbGw6I0U4NDIzNScgPjI8L3RleHQ+Cjx0ZXh0IHg9JzM1LjAnIHk9JzUzLjYnIGNsYXNzPSdhdG9tLTAnIHN0eWxlPSdmb250LXNpemU6MjNweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID5PPC90ZXh0Pgo8L3N2Zz4K O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000004064 recycling Methods 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 238000004880 explosion Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 2
- 238000005039 chemical industry Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 29
- 239000003054 catalyst Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000001351 cycling Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
Apparatus of the present invention are that a kind of coal mine light concentration mash gas catalytic combustion thermal energy utilizes device, mainly comprising low concentration gas catalysis burning processing, the field of engineering technology that catalytic combustion thermal energy recycling is chemical industry and thermal technology is combined.Having the prominent advantages that for it can not only handle coal mine light concentration mash gas gas, moreover it is possible to which processing is higher than the high concentration gas gas of explosion limit.By the real-time monitoring of multipoint temperature sensor, to control the switch of electric heater and the flow of frequency conversion water circulating pump in real time, and then the catalytic temperature of catalytic bed to be controlled to be in optimum state always.Methane gas is catalyzed burning liberated heat in catalytic bed and is on the one hand preheated to air inlet gas, is on the other hand exported by conduction oil, exchanges heat in plate heat exchanger and give user's recirculated water, by hot water supply user（Colliery）It uses.By the device, coal mine light concentration mash gas gas has obtained effective processing, while combustion heat energy has also obtained recycling well.Energy conservation and environmental protection, comprehensive benefit are high.
Description
Technical field
Apparatus of the present invention are handled coal mine light concentration mash gas gas using the principle of catalysis oxidation, while recycle catalysis
Reaction heat on bed belongs to energy conservation and environmental protection field for colliery heat supply.
Technical background
For Safety of Coal Mine Production, it is necessary to fire damp be handled, the main method of use is underground extraction and leads to
Wind dilutes, and the gas quantity that two methods generate is big, but concentration is low, can not directly utilize, most directly to empty, and both wastes
Clean energy resource, and generate substantial amounts of greenhouse gases.
Low concentration gas can not directly burn utilization, but can carry out catalysis oxidation to low concentration gas using catalyst,
Substantial amounts of thermal energy is generated after low concentration gas catalysis oxidation, this partial heat energy can recycle.
The present invention develops a kind of coal mine light concentration mash gas gas catalytic combustion heat-energy utilizing device, in catalytic combustion system
Middle design heat reclaiming system recycles the catalytic bed heat of oxidation using heat recovery system, ensures that catalytic bed is optimal always
Catalytic temperature, while pass through thermostatic control so that low concentration gas can be processed in a wider concentration range, widen
Low concentration gas catalysis combustion range, to low concentration gas catalytic combustion heat amount there are one efficiently utilizing, carries for colliery heat supply
A kind of new clean energy resource has been supplied, has substituted conventional boiler heat source.
The content of the invention
In order to realize above-mentioned purpose, apparatus of the present invention take following technological means：A kind of coal mine light concentration watt
This catalytic combustion thermal energy utilizes device, it mainly includes following several components：Constant temperature catalytic combustion reactor, heat regenerator, electricity
Hinder other parts such as heater, plate heat exchanger, temperature sensor, flow sensor, variable frequency pump, flange, pipeline.Colliery
Before constant temperature catalytic combustion reactor is entered, the heat regenerator for passing through top preheats low-concentration methane gas, recycling catalysis row
High temperature heat in gas, after temperature rise, after low concentration gas is by equal gas-bearing formation, evenly into constant temperature catalytic combustion reactor
Catalytic bed in carry out catalysis burning, release heat.When the present apparatus is opened, electric heater passes through cycling to heat-conducting oil heating
Conduction oil makes catalytic bed reach the start-up temperature that catalysis is burnt, and equipment starts after gas gas being vertically arranged in extension design
Catalytic bed in catalyst combustion reaction occur and release heat, sub-fraction heat maintains the needs of catalysis burning, most of
Heat be sent to by the conduction oil cycled in constant temperature catalytic bed in plate heat exchanger, user is obtained by plate heat exchanger
Heat realizes the recycling of thermal energy.Multipoint temperature sensor is arranged in catalytic bed, it can be to the temperature of catalytic bed
Degree is monitored in real time, and ensures catalytic bed catalytic temperature always in optimized scope by certain measure.If temperature
Design standard is not achieved, on the one hand starts heater, improves the temperature for entering conduction oil in plate heat exchanger, is heated to manually
Design standard, after design standard to be achieved, just immediately deenergization, stops heating；If reaction is violent, catalytic bed temperature
It is excessively high, the flow of frequency conversion water circulating pump is just increased, more heats are exported by plate heat exchanger, allows and enters thermostatic type catalysis
Cold heat conduction oil temperature in combustion reactor is lower, so as to ensure that catalytic bed is in optimal catalytic temperature always.Present invention dress
It puts using above-mentioned technological means, mainly possesses following several features：
1. the set invention device devises catalysis burning and gas-exhausting heat recovering heat exchanger, low-concentration methane gas is preheated, is returned
Receive catalysis smoke evacuation high temperature heat, this partial heat energy eventually by catalytic bed conduction oil heat-exchange system, finally by user profit
With realizing waste heat recovery.
2. devising conduction oil heat-exchange system in catalytic bed, by the heat-exchange system plate heat exchanger, realizing will urge
Change the total catalytic reaction heat supply user of bed.
3. the heat energy utilization system of the covering device while recycling thermal energy, realizes the constant temperature optimization of catalytic bed
Operation, catalytic bed temperature substantially constant from the influence of gas density fluctuation, have widened the concentration model of processing low concentration gas
It encloses, it might even be possible to recycle the low concentration gas higher than explosion limit.
4. the control system of the set invention device, by the real-time monitoring of multipoint temperature sensor, and then to control heating
The real-time adjustment of device and frequency conversion water circulating pump flow, can be precisely controlled catalytic bed temperature so that catalyst is located always
In high activity, the high life, catalysis burning can smoothly be carried out, and calory burning can be maintained in scope of design well,
And then ensure that heat-energy utilizing device being capable of high-efficiency operation.
5. set invention device construction is simple, but high treating effect, utilization efficiency of heat energy are high.
6. this set invention device is used, not only coal mine light concentration mash gas（Greenhouse gases）It is effectively addressed, while is also
Colliery provides a kind of novel energy, instead of traditional boiler heat source.
Description of the drawings
Fig. 1 is the specific implementation figure of coal mine light concentration mash gas gas catalytic combustion heat-energy utilizing device.
Specific embodiment
Below in conjunction with attached drawing, the operation principle of apparatus of the present invention is described in detail.
Apparatus of the present invention contain following component：1st, constant temperature catalytic combustion reactor 2, low-concentration methane gas air inlet
Clean air outlet pipeline 4 after mouthful pipeline 3, processing, heat regenerator 5, low concentration gas uniform device 6,（Even distribution type）Temperature sensing
Device 7, thermal conductivity deep fat flow sensor 8, resistance type heater 9, thermal conductivity hot oil outlet pipeline 10, cold heat conductive oil inlet pipeline 11,
Plate heat exchanger 12, user's circulating water intake pipeline 13, hot-water outlet conduits 14, frequency conversion water circulating pump 15, heat user（Colliery）、
16 oil circulating pumps and other ancillary equipments.
Specific embodiment：Low concentration coal mine gas gas enters 4 heat regenerators by 2 methane gas air inlet ducts
In preheated, recycle the thermal energy of high-temperature cleaning gas, then entered by pipeline in 5 low concentration gas uniform devices carry out it is equal
Change, evenly into 1 constant temperature catalytic combustion reactor of special designing, in the straight tube of the vertical arrangement inside the reactor
Filled with catalyst, under conditions of certain temperature and pressure is kept, catalysis burning occurs in straight tube for methane gas, puts simultaneously
Go out heat.Cold conduction oil in 10 cold heat conductive oil inlet pipelines enters 1 constant temperature catalytic combustion reactor by 16 oil circulating pumps,
Reaction liberated heat is taken away, the temperature of catalytic bed is made to maintain within design standard.6（Even distribution type）Temperature sensor pair
Catalytic bed temperature is monitored in real time, and just during start, design standard is not achieved in the temperature of catalytic bed, starts 8 heating at this time
Device heats conduction oil, by the conduction oil for cycling catalytic bed is made to reach the start-up temperature of catalysis burning, temperature is once
After reaching design standard, with regard to horse back deenergization, stop the heating to conduction oil, ensure that catalytic bed temperature is in optimized scope
It is interior.If catalysis burning is violent, catalytic bed temperature is excessively high, is increased at this time by 14 frequency conversion water circulating pumps into 11 plate heat exchangers
The flow of middle user's recirculated water, takes away more heats.7 flow sensors measure conduction oil outlet flow, if stream
Magnitude has been more than design standard, and the heat being transported at this time by 9 thermal conductivity hot oil pipelines in 11 plate heat exchangers increases, and increases 14
User's circulating water flow of frequency conversion water circulating pump, the heat increased is taken away；If flow value is less than design standard, enter at this time
It can be reduced relatively to the heat in 11 plate heat exchangers, at this moment will reduce the flow of 14 frequency conversion water circulating pumps, by such
Measurement and control, it is possible to ensure the accurate control of the thermal balance and catalytic bed temperature of whole device.It will be in thermal conductivity deep fat
Heat and 12 user's circulating water intake pipelines in user's recirculated water by plate heat exchanger carry out heat exchange, 13 will be obtained
15 heat user of hot water supply in hot-water outlet conduits（Colliery）It uses.
Above-mentioned operation principle is merely to illustrate the present invention, wherein the structure of each component, connection mode etc. are all can be
Variation, every equivalents carried out on the basis of technical measure and improvement should not be excluded the present invention's
Outside protection domain.
Claims (6)
1. a kind of coal mine light concentration mash gas catalytic combustion thermal energy utilizes device, its main feature is as follows：The constant temperature of extension design is urged
Change combustion reactor, heat regenerator, uniform device, electric heater, plate heat exchanger, temperature sensor, flow sensor, frequency conversion follow
Other parts such as ring water pump, flange, pipeline；The set catalytic combustion thermal energy utilizes device catalytic oxidation of low-concentration methane gas,
The thermal energy that catalysis burning is released is exchanged heat to supply into user's recirculated water by plate heat exchanger using Heat-conduction oil circulation system and is used
Family uses, and low concentration gas is not only handled, while the thermal energy that burning is released is catalyzed to it has one effectively to recycle
It utilizes.
2. according to claim 1, it is characterized in that by the riser type catalytic bed of extension design, in wide concentration range
Low-concentration methane gas carries out catalysis oxidation, and upper concentration can be more than explosion limit more than 50%.
3. the conduction oil heat-exchange system according to claim 1, arranged inside catalytic bed, conduction oil are led baffle plate
Under drawing, the cavity inside catalytic bed is flowed uniformly through, after absorbing catalytic combustion heat amount, is sent in plate heat exchanger and exchanges heat, is supplied
It is used to user, while ensure that catalytic bed is in optimal catalytic temperature.
4. according to claim 1, it is characterized in that devising catalytic exhaust gas heat recovering heat exchanger, by the heat exchanger to low dense
Degree methane gas preheated, recycling catalysis smoke evacuation high temperature heat, this partial heat energy eventually by catalytic bed conduction oil
Heat-exchange system is finally widely-available for users.
5. according to claim 1, it is characterized in that devising startup electrical heating on conduction oil heat-exchange system, start electrical heating
Device provides catalytic bed and starts the temperature needed to heat-conducting oil heating.
6. according to claim 1, it is characterized in that realizing monitoring in real time, control to catalytic bed by multipoint temperature sensor
The heating amount of good heater and the flow of water circulating pump, and then to ensure that the temperature of catalytic bed is in an optimal temperature always
In the range of degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152039.3A CN108087897A (en) | 2018-02-14 | 2018-02-14 | A kind of coal mine light concentration mash gas gas catalytic combustion heat-energy utilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810152039.3A CN108087897A (en) | 2018-02-14 | 2018-02-14 | A kind of coal mine light concentration mash gas gas catalytic combustion heat-energy utilizing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112484057A (en) * | 2020-11-23 | 2021-03-12 | 中国科学院力学研究所 | Diffused gas self-sustaining catalytic combustion sensible heat cascade utilization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112484057A (en) * | 2020-11-23 | 2021-03-12 | 中国科学院力学研究所 | Diffused gas self-sustaining catalytic combustion sensible heat cascade utilization device |
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