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 PDF

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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
Authority
CN
China
Prior art keywords
heat
gas
catalytic
temperature
catalytic bed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810152039.3A
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Chinese (zh)
Inventor
牛永胜
邓先发
邓建国
吴旭明
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Zhong Yuan Chuang (beijing) Technology Co Ltd
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Zhong Yuan Chuang (beijing) Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhong Yuan Chuang (beijing) Technology Co Ltd filed Critical Zhong Yuan Chuang (beijing) Technology Co Ltd
Priority to CN201810152039.3A priority Critical patent/CN108087897A/en
Publication of CN108087897A publication Critical patent/CN108087897A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/07Incinerators 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00Waste heat recuperation
    • F23G2206/20Waste heat recuperation using the heat in association with another installation
    • F23G2206/203Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00Specific waste
    • F23G2209/14Gaseous waste or fumes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/12Heat 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

A kind of coal mine light concentration mash gas gas catalytic combustion heat-energy utilizing device
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.
CN201810152039.3A 2018-02-14 2018-02-14 A kind of coal mine light concentration mash gas gas catalytic combustion heat-energy utilizing device Pending CN108087897A (en)

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

Publications (1)

Publication Number Publication Date
CN108087897A true CN108087897A (en) 2018-05-29

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Application Number Title Priority Date Filing Date
CN201810152039.3A Pending CN108087897A (en) 2018-02-14 2018-02-14 A kind of coal mine light concentration mash gas gas catalytic combustion heat-energy utilizing device

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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