CN208431788U - Low concentration gas direct combustion device - Google Patents
Low concentration gas direct combustion device Download PDFInfo
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- CN208431788U CN208431788U CN201821094068.0U CN201821094068U CN208431788U CN 208431788 U CN208431788 U CN 208431788U CN 201821094068 U CN201821094068 U CN 201821094068U CN 208431788 U CN208431788 U CN 208431788U
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- conveyance conduit
- low concentration
- gas
- direct combustion
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Abstract
The utility model discloses a kind of low concentration gas direct combustion device, including conveying device, ground flare device, control device, safety guard and burner, conveying device includes conveyance conduit and air mixing equipment, conveyance conduit one end is connected to gas gas source, the other end is connected to burner, ground flare device is connected to conveyance conduit, safety guard is arranged in conveyance conduit, air mixing equipment includes fan and intake stack, conveyance conduit is connected to intake stack, water ring vacuum pump is set on conveyance conduit, flowmeter, temperature sensor, sensing methane concentration device, pressure sensor and flame sensor, water ring vacuum pump, fan, flowmeter, temperature sensor, sensing methane concentration device, pressure sensor and flame sensor and control device communicate to connect, burner includes burner, be provided at the top of burner with outside The stomata of boundary's atmosphere, the methane gas that low concentration gas direct combustion device provided by the utility model is capable of 6% concentrations above directly burn.
Description
Technical field
The utility model relates to gas combustion equipment technical field more particularly to a kind of low concentration gas direct combustion devices.
Background technique
Coal mine gas is a kind of good clean energy resource and a kind of greenhouse gases, and greenhouse effects are titanium dioxides
21 times of carbon.In general, the concentration of coal extraction is higher than 10% gas, it will usually for generating electricity, civilian or industrial production,
And gas of the concentration lower than 10% can be then exhausted directly in the air.China has a large amount of underground mash gas extraction because utilization ways have every year
It limits and is exhausted directly in the air, especially low concentration gas (10% or less).
Low concentration gas regenerative oxidation heat energy utilization complete set technology keeps low concentration gas mixed by intelligence in blending device
Be fitted on 1.2% hereinafter, again through regenerative oxidation device aoxidize generate high-temperature flue gas, thermal energy after processing a part for pit shaft into
Wind heating, another part are used for building heating, worker's bathing.
The shortcomings that prior art (low concentration gas regenerative oxidation technology):
(1) by the way that the higher device in Gas of relative concentration (especially 6%~10%) to be compounded by automatic gas distribution system
The gas (1%) of lower concentration, reduces the quality of device in Gas, and utilization efficiency of heat energy reduces；
(2) technique requires the mixed gas concentration for participating in regenerative oxidation that must not be higher than 1.2%, due to gas density
It changes, the hysteresis quality of the precision of gas concentration detector and testing result, the burning of stablizing of system can all be had an important influence on；
(3) technique is put into greatly in advance, while the service life of ceramic honey comb is not high, and maintenance cost is higher than other utilizations
Mode.
Therefore, a kind of low concentration gas direct combustion device how is provided, to realize the methane gas directly by 6% concentrations above
It burns, is current those skilled in the art technical problem urgently to be resolved.
Utility model content
In view of this, directly will the purpose of this utility model is to provide a kind of low concentration gas direct combustion device with realizing
The methane gas of 6% concentrations above burns.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of low concentration gas direct combustion device, including conveying device, ground flare device, control device, safeguard protection dress
It sets and burner, wherein the conveying device includes conveyance conduit and air mixing equipment, one end of the conveyance conduit and gas
Gas source connection, the other end are connected to the burner, and the ground flare device is connected to the conveyance conduit, described defeated
It send and is provided with the safety guard on pipeline, the air mixing equipment includes fan and intake stack, on the conveyance conduit
Through-hole is provided with for be connected to the intake stack, on the conveyance conduit and positioned at the through-hole and the gas gas source it
Between be provided with water ring vacuum pump and flowmeter, be arranged on the conveyance conduit and between the through-hole and the burner
There are temperature sensor, sensing methane concentration device, pressure sensor and flame sensor, the water ring vacuum pump, the fan, institute
State flowmeter, the temperature sensor, the sensing methane concentration device, the pressure sensor and the flame sensor with
Control device communication connection, the burner includes burner, is provided at the top of the burner and ambient atmosphere
The stomata of connection.
Preferably, gas-liquid separation deduster is additionally provided on above-mentioned conveyance conduit.
Preferably, above-mentioned safety guard includes metallic fiber fire arrester, water sealing type fire retardant blowout device, automatic powder spraying
Explosion suppression device, automatic explosive-resisting device and anti-backflow device.
Preferably, above-mentioned ground flare device includes ground flare cylinder, automatic ignitor, purging motor, air inlet pipeline
And the ground flare cylinder is connected to by control valve, the air inlet pipeline with the conveyance conduit, the automatic ignitor is set
It sets in the ground flare cylinder and is communicated to connect with the control device, the purging motor is arranged in the air inlet pipeline
In, the control valve is arranged on the air inlet pipeline.
Preferably, said burner is the vertical combustor of underneath type burning.
Preferably, spoiler is inserted in the smoke pipe of said burner.
Preferably, said burner is the Horizontal burner of complete three return structures of wetting back-type.
Preferably, earth leakage protective device, overtemperature protection system and anti-dry protection device are provided in said burner.
Preferably, pressure regulator, gas control valve and quick action emergency valve are provided on above-mentioned conveyance conduit.
Low concentration gas direct combustion device provided by the utility model, including conveying device, ground flare device, control dress
It sets, safety guard and burner, wherein the conveying device includes conveyance conduit and air mixing equipment, the delivery pipe
The one end in road is connected to gas gas source, and the other end is connected to the burner, the ground flare device and the conveying
Pipeline connection, is provided with the safety guard on the conveyance conduit, and the air mixing equipment includes fan and intake stack,
Through-hole is provided on the conveyance conduit for be connected to the intake stack, on the conveyance conduit and be located at the through-hole with
It is provided with water ring vacuum pump and flowmeter between the gas gas source, on the conveyance conduit and is located at the through-hole and the combustion
It burns and is provided with temperature sensor, sensing methane concentration device, pressure sensor and flame sensor, the Water-ring vacuum between device
Pump, the fan, the flowmeter, the temperature sensor, the sensing methane concentration device, the pressure sensor and described
Flame sensor is communicated to connect with the control device, and the burner includes burner, is set at the top of the burner
It is equipped with the stomata being connected to ambient atmosphere.
Burner structure is designed by normal pressure, and top is equipped with free vent, and burner works under normal pressure, far from explosion
Danger, in use, low concentration gas reaches burner by conveyance conduit, when the gas density in conveyance conduit is higher than 8%
When, the ignition system of burner first starts the combustor of itself, after the combustion is stabilized, according to the methane of sensing methane concentration device
The pressure of concentration and pressure sensor monitoring, air mixing equipment starting, gas density is stablized to 8% and is burnt.When gas is dense
When degree is 6%-8%, air mixing equipment is closed, and ignition system work starts combustor.To realize directly by 6% concentrations above
Methane gas burn.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the structure of low concentration gas direct combustion device provided by the embodiment of the utility model.
In figure 1 above:
Conveyance conduit 1, intake stack 2, pressure regulator 3, gas control valve 4, flowmeter 5, quick action emergency valve 6, fire arrester 7,
Temperature sensor 8, sensing methane concentration device 9, pressure sensor 10, flame sensor 11, burner 12, fan 13.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Referring to FIG. 1, Fig. 1 is the structural schematic diagram of low concentration gas direct combustion device provided by the embodiment of the utility model.
Low concentration gas direct combustion device provided by the embodiment of the utility model, including conveying device, ground flare device, control
Device, safety guard and burner processed, wherein conveying device includes conveyance conduit 1 and air mixing equipment, conveyance conduit 1
One end be connected to gas gas source, the other end is connected to burner 12, and ground flare device is connected to conveyance conduit 1, defeated
It send and is provided with safety guard on pipeline 1, air mixing equipment includes fan 13 and intake stack 2, is provided on conveyance conduit 1 logical
Hole is provided with water ring vacuum pump and stream on conveyance conduit 1 and between through-hole and gas gas source for being connected to intake stack 2
Meter 5 is provided with fire arrester 7, temperature sensor 8, methane concentration on conveyance conduit 1 and between through-hole and burner 12
Sensor 9, pressure sensor 10 and flame sensor 11, water ring vacuum pump, fan 13, flowmeter 5, temperature sensor 8, methane
Concentration sensor 9, pressure sensor 10 and flame sensor 11 are communicated to connect with control device, and burner 12 includes burning
Device is provided with the stomata being connected to ambient atmosphere at the top of burner.Pressure regulator 3, gas control valve are provided on conveyance conduit 1
4 and quick action emergency valve 6.
12 structure of burner is designed by normal pressure, and top is equipped with free vent, and burner works under normal pressure, far from quick-fried
Fried danger, in use, low concentration gas reaches burner 12 by conveyance conduit 1, when the gas density in conveyance conduit 1 is high
When 8%, the ignition system of burner 12 first starts the combustor of itself, after the combustion is stabilized, according to sensing methane concentration
Gas density is stablized to 8% and is fired by the pressure of methane concentration and pressure sensor 10 monitoring of device 9, air mixing equipment starting
It burns.When gas density is 6%-8%, air mixing equipment is closed, and the gas control valve 4 on conveyance conduit 1 is powered, quick action emergency valve
6 are powered, and ignition system work starts combustor.Directly the methane gas of 6% concentrations above is burnt to realize.
In order to advanced optimize above scheme, gas-liquid separation deduster is additionally provided on conveyance conduit 1.Safety guard
It is filled including metallic fiber fire arrester, water sealing type fire retardant blowout device, automatic powder spraying explosion-suppressing device, automatic explosive-resisting device and counterflow-preventing
It sets.Specifically, safety guard include metallic fiber fire arrester, water sealing type fire retardant blowout device, automatic powder spraying explosion-suppressing device,
(these devices are configured referring especially to AQ1076-2009, are mainly used for low concentration watt for automatic explosive-resisting device, anti-backflow device
This delivery pipeline system is explosion-proof, anti-backfire, anti feedback) and emergency diffusion system (combustion system once accident occurs, transfer pipeline
After cutting, guarantee the normal operation of extraction pumping plant) etc..
Wherein, ground flare device includes ground flare cylinder, automatic ignitor, purging motor, air inlet pipeline and control
Ground flare cylinder is connected to by valve, air inlet pipeline with conveyance conduit, automatic ignitor be arranged in ground flare cylinder and with
Control device communication connection, purging motor are arranged in air inlet pipeline, and control valve is arranged on air inlet pipeline.
Wherein, burner can be the vertical combustor of underneath type burning.Spoiler is inserted in the smoke pipe of burner.Burning
Device may be the Horizontal burner of complete three return structures of wetting back-type.Specifically, to adopt available burner underlying for Vertical Burn equipment
Formula combustion system, fuel pressurized firing in flue are inserted with spoiler in smoke pipe, and the reducing smoke velocity of discharge reinforces heat exchange,
Guarantee the heat farthest heating furnace water that fuel combustion generates, improves the efficiency of heating- utilization of burner.Horizontal burning
Device uses complete three return structures of wetting back-type, and flue gas flow is long, reduces exhaust gas temperature, and the setting of full wave pattern flue generates flame
Strong disturbance, strength improves heat transfer coefficient, and effectively prevents the reduction for leading to equipment life because of metal heat-expansion shrinkage；Big mouth
Diameter smoke pipe and big bridge gap, making burner, scale coating is thin within the equal time and is convenient to clean.
In order to advanced optimize above scheme, earth leakage protective device, overtemperature protection system are provided in burner and prevent dry
Burn protective device.Earth leakage protective, which is leaked electricity, to be automatically cut off the power；Water ultra-temperature reaches alarm temperature in overheating protection, that is, burner
When spending, it is automatically stopped burner and issues alarm；When secondary overheating protection, that is, burner skin temperature is more than 105 DEG C, automatically
Secondary circuit is cut off, burner stops working；The i.e. superior level electrode stick of anti-dry protection monitors water level conditions in real time, because of it
When its reason burner water level reaches, is lower than extremely low water level, burner stops working, and prevents dry combustion method from causing danger.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (9)
1. a kind of low concentration gas direct combustion device, which is characterized in that including conveying device, ground flare device, control device, peace
Full protection device and burner, wherein
The conveying device includes conveyance conduit and air mixing equipment, and one end of the conveyance conduit is connected to gas gas source, another
One end is connected to the burner,
The ground flare device is connected to the conveyance conduit,
The safety guard is provided on the conveyance conduit,
The air mixing equipment includes fan and intake stack, and through-hole is provided on the conveyance conduit and is used for and the intake stack
Connection,
It is provided with water ring vacuum pump and flowmeter on the conveyance conduit and between the through-hole and the gas gas source,
Temperature sensor is provided on the conveyance conduit and between the through-hole and the burner, methane concentration passes
Sensor, pressure sensor and flame sensor,
It is the water ring vacuum pump, the fan, the flowmeter, the temperature sensor, the sensing methane concentration device, described
Pressure sensor and the flame sensor are communicated to connect with the control device,
The burner includes burner, and the stomata being connected to ambient atmosphere is provided at the top of the burner.
2. low concentration gas direct combustion device according to claim 1, which is characterized in that be additionally provided on the conveyance conduit
Gas-liquid separation deduster.
3. low concentration gas direct combustion device according to claim 1, which is characterized in that the safety guard includes gold
Belong to fiber fire arrester, water sealing type fire retardant blowout device, automatic powder spraying explosion-suppressing device, automatic explosive-resisting device and anti-backflow device.
4. low concentration gas direct combustion device according to claim 1, which is characterized in that the ground flare device includes ground
Face torch cylinder, automatic ignitor, purging motor, air inlet pipeline and control valve,
The ground flare cylinder is connected to by the air inlet pipeline with the conveyance conduit, and the automatic ignitor is arranged described
It is communicated to connect in ground flare cylinder and with the control device, the purging motor is arranged in the air inlet pipeline, described
Control valve is arranged on the air inlet pipeline.
5. low concentration gas direct combustion device according to claim 1, which is characterized in that the burner is underneath type burning
Vertical combustor.
6. low concentration gas direct combustion device according to claim 5, which is characterized in that be inserted in the smoke pipe of the burner
Spoiler.
7. low concentration gas direct combustion device according to claim 1, which is characterized in that the burner is full wetting back-type three
The Horizontal burner of return structures.
8. low concentration gas direct combustion device according to claim 1, which is characterized in that be provided with electric leakage in the burner
Protective device, overtemperature protection system and anti-dry protection device.
9. low concentration gas direct combustion device according to claim 1, which is characterized in that be provided with tune on the conveyance conduit
Depressor, gas control valve and quick action emergency valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094068.0U CN208431788U (en) | 2018-07-11 | 2018-07-11 | Low concentration gas direct combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094068.0U CN208431788U (en) | 2018-07-11 | 2018-07-11 | Low concentration gas direct combustion device |
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| Publication Number | Publication Date |
|---|---|
| CN208431788U true CN208431788U (en) | 2019-01-25 |
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ID=65099159
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821094068.0U Active CN208431788U (en) | 2018-07-11 | 2018-07-11 | Low concentration gas direct combustion device |
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| Country | Link |
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| CN (1) | CN208431788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566196A (en) * | 2021-07-30 | 2021-10-29 | 淮南矿业(集团)有限责任公司 | Ultra-low concentration gas heat storage combustion device and combustion method at extremely high temperature |
-
2018
- 2018-07-11 CN CN201821094068.0U patent/CN208431788U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566196A (en) * | 2021-07-30 | 2021-10-29 | 淮南矿业(集团)有限责任公司 | Ultra-low concentration gas heat storage combustion device and combustion method at extremely high temperature |
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