CN208327931U - A kind of cooling system for biological fuel gas - Google Patents
A kind of cooling system for biological fuel gas Download PDFInfo
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- CN208327931U CN208327931U CN201820673521.7U CN201820673521U CN208327931U CN 208327931 U CN208327931 U CN 208327931U CN 201820673521 U CN201820673521 U CN 201820673521U CN 208327931 U CN208327931 U CN 208327931U
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- fuel gas
- biological fuel
- heat exchanger
- air
- cooling system
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Abstract
The utility model discloses a kind of cooling system for biological fuel gas, which includes the biomass drier being sequentially connected, screw(-type) feeder, gasification furnace, cyclone separator, gas cooler, combustion gas booster fan and the primary air fan for gasification furnace air-supply；This technique eliminates the heat-conducting oil system in traditional handicraft, and directly biological fuel gas and air exchange heat, and low energy consumption, small investment；The form of gas cooler is U-tube heat exchanger, and for the heat exchange between biological fuel gas and air, when work, biological fuel gas lateral pressure is 0.1~0.5MPa higher than the pressure of air side, and component measuring point is arranged in air outlet duct, detects CO and H2Concentration, can timely and effectively judge whether heat exchanger tube has leak source, system is safe and reliable；It is provided with several steam blowing heads at the top of heater housings simultaneously, can be carried out steam blowing cleaning either in heater operational process or after stopping, easy to operate, service life is long.
Description
Technical field
The utility model belongs to field of energy and chemical technology, and in particular to a kind of cooling system for biological fuel gas.
Background technique
With country to Optimization of Energy Structure, ensure energy security, improve the urgent of environmental quality and " anti-haze controls haze "
Demand, the importance for cleaning reproducible biomass energy are higher and higher.It is developed using gasification of biomass coupled electricity-generation technique to high-efficiency
Using biomass energy, coal resources consumption can not only be reduced, protection environment reduces pollutant emission, promotes energy resource structure excellent
Change, and rationally using project locality biomass resource, enhancing Business Economic Benefit, in terms of have weight
Want meaning.
The traditional handicraft of domestic existing gasification of biomass coupling technique is that biomass material is first in gasification furnace at present
It carries out gasification and generates combustion gas, then boiler is sent into combustion gas after dedusting and cooling and is generated electricity with coal dust co-fire producing steam.By
Higher in biological fuel gas temperature and contain tar and ash, tar is precipitated in order to prevent, line clogging is avoided, generally using thermally conductive
Oil system carries out heat exchange cooling, then with conduction oil indirect heating air.But the complex process of this heat-conducting oil system, heat loss
Greatly, investment and energy consumption are also higher.If directly biological fuel gas and air exchanged heat, technique is relatively easy, investment and energy
Consume it is less, but when heat exchanger occur in leakage when, high-temperature biomass gas contacted with air just it is abnormally dangerous.
Therefore, to shorten existing biomass generation process flow, investment and energy consumption is reduced, is developed a kind of for biology
It is a very significant task that the safe and reliable cooling technique and cooler construction of matter combustion gas, which is set,.
Summary of the invention
In order to solve the above-mentioned problems of the prior art, the purpose of this utility model is to provide one kind to be used for biomass
The cooling system and cooling means of combustion gas, eliminate the heat-conducting oil system in traditional handicraft, directly by biological fuel gas and air
It exchanges heat, low energy consumption, small investment.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of cooling system for biological fuel gas, including biomass drier 16, are connected with biomass drier 16
Screw(-type) feeder 17, the gasification furnace 18 being connected with screw(-type) feeder 17, the cyclone separator 19 being connected with gasification furnace 18, with rotation
The connected gas cooler 20 of wind separator 19, the combustion gas booster fan 21 being connected with gas cooler 20 and be gasification furnace 18
Convey the pressure fan 22 of air；
The gas cooler 20 includes heater housings 1, the end socket 2 for being connected and sealing with heater housings 1, heater
Biological fuel gas import 9 and several steam blowing heads 13 are provided at the top of shell 1,1 bottom of heater housings is provided with poly- oil
Slot 8 and biological fuel gas outlet 10；Heat exchanger tube 4 is equipped with inside heater housings 1, heater housings 1 are interior vertical along heat exchanger tube 4
Direction is separately equipped with several upper hydraulic barriers 5 and lower hydraulic barrier 6, and lower 6 bottom of hydraulic barrier is equipped with oil guide groove 7；End socket 2
Top and bottom be respectively equipped with inlet of cold air 11 and hot air outlet 12, cold air and hot-air point are equipped with inside end socket 2
Journey partition 3, hot air outlet 12 are equipped with pressure-measuring-point 15 and detect the CO and H in tube side medium2The component measuring point of content
14；The inlet of cold air 11 and 4 inlet communication of heat exchanger tube, hot air outlet 12 and 4 outlet of heat exchanger tube；The combustion
The tube side medium of Gas Cooler 20 is cold air；Shell side medium is hot biological fuel gas.
20 form of gas cooler is U-tube heat exchanger, and shell side medium is higher than the operating pressure of tube side medium by 0.1
~0.5MPa.
Low, surrounding height and curved surface with a slope are put centered on 1 bottom of heater housings.
The heat exchanger tube 4 is equipped with no less than 2 equal number of upper hydraulic barriers 5 and lower hydraulic barrier along the vertical direction
6, upper hydraulic barrier 5 and lower hydraulic barrier 6 are equidistantly staggered.
The shape of the oil guide groove 7 is rectangle, and effect is to make the impurity such as tar by going forward side by side in steam blowing
Enter oil drain tank 8.
No less than one steam blowing head 13, the position of steam blowing head 13 are provided at the top of the heater housings 1
It installs at the spacing center of upper hydraulic barrier 5 and lower hydraulic barrier 6, the vapor (steam) temperature of purging is not less than 150 DEG C.
Compared to the prior art compared with the utility model has following advantage:
The utility model be used for biological fuel gas cooling system, including be sequentially connected biomass drier 16, spiral
Batcher 17, gasification furnace 18, cyclone separator 19, gas cooler 20, combustion gas booster fan 21 and be gasification furnace air-supply
Primary air fan 22.The heat-conducting oil system in traditional handicraft is eliminated, directly biological fuel gas and air exchange heat, energy consumption
It is low, small investment.
Gas cooler 20 is characterized in that form is U-tube heat exchanger, for the heat exchange between biological fuel gas and air,
Because biological fuel gas contains tar and ash, shell side medium is hot biological fuel gas, and tube side medium is cleaner cold air.
When work, biological fuel gas lateral pressure is 0.1~0.5MPa higher than the pressure of air side, and surveys in air outlet duct setting component
Point 14 detects the concentration of CO and H2, if 14 testing result of fruit component measuring point shows that CO and H2 increases, can judge heat exchanger tube 4
There is leak source, then can close the valve of biological fuel gas import, carry out subsequent maintenance, system is safe and reliable.Simultaneously in heater
Several steam blowing heads 13 are provided at the top of shell 1, high-temperature steam purges tar and ash straight down to the bottom of heater,
Outlet again in oil drain tank 8 is flowed into oil guide groove 7 is crossed along bottom curved surface.Either in heater operational process or after stopping all
Steam blowing cleaning can be carried out, it is easy to operate.
Detailed description of the invention
Attached drawing 1 is the process flow chart of the utility model.
Attached drawing 2 is the structural schematic diagram of gas cooler in the utility model.
Attached drawing 3 is the partial structural diagram of gas cooler in the utility model.
Specific embodiment
With reference to the accompanying drawing, the utility model is further described.Skilled in the art realises that following the description is not
It is the limitation to scope of protection of the utility model.Any improvements and changes made on the basis of the utility model are all practical at this
Within novel protection scope.
As shown in Figure 1, a kind of cooling system for biological fuel gas of the utility model, including biomass drier 16,
The screw(-type) feeder 17 being connected with biomass drier 16, the gasification furnace 18 being connected with screw(-type) feeder 17, with 18 phase of gasification furnace
Cyclone separator 19 even, the gas cooler 20 being connected with cyclone separator 19, the combustion gas being connected with gas cooler 20 increase
Pressure fan 21 and the pressure fan 22 that air is conveyed for gasification furnace 18.
As shown in Fig. 2, the form of gas cooler 20 is U-tube heat exchanger, including heater housings 1, with heater case
Body 1 is connected and the end socket 2 that seals, is provided with biological fuel gas import 9 and several steam blowing heads at the top of heater housings 1
13,1 bottom of heater housings is provided with oil drain tank 8 and biological fuel gas outlet 10.Heat exchanger tube 4 is equipped with inside heater housings 1,
Several upper hydraulic barriers 5 and lower hydraulic barrier 6, lower baffling gear are separately equipped with along 4 vertical direction of heat exchanger tube in heater housings 1
6 bottom of plate is equipped with oil guide groove 7.The top and bottom of end socket 2 are respectively equipped with air intlet 11 and air outlet slit 12, inside end socket 2
Equipped with pass partition 3, air outlet slit 12 is equipped with component measuring point 14 and pressure-measuring-point 15；The inlet of cold air 11 and heat exchanger tube
4 inlet communications, hot air outlet 12 and 4 outlet of heat exchanger tube.
As preferred embodiments of the present invention, the air heater form is U type heat exchange of heat pipe, tube side
Medium is cold air；Shell side medium is hot biological fuel gas.Shell side medium is higher than the operating pressure of tube side medium by 0.1~
0.5MPa。
As preferred embodiments of the present invention, put low centered on 1 bottom of heater housings, surrounding is slightly higher
And curved surface with a slope.
As preferred embodiments of the present invention, heat exchanger tube 4, heat exchanger tube 4 are provided in the heater housings 1
It is equipped with no less than 2 equal number of upper hydraulic barriers 5 and lower hydraulic barrier 6, hydraulic barrier 5 and lower baffling gear along the vertical direction
Plate 6 is equidistantly staggered.
As preferred embodiments of the present invention, 6 bottom of lower hydraulic barrier is equipped with oil guide groove 7, oil guide groove 7
Shape be rectangle, effect be that the impurity such as tar can be made to pass through in steam blowing and enter oil drain tank 8.
As preferred embodiments of the present invention, no less than one is provided at the top of the heater housings 1
The spacing center of upper hydraulic barrier 5 and lower hydraulic barrier 6 is arranged in steam blowing head 13, the position of steam blowing head 13, purging
Vapor (steam) temperature is not less than 150 DEG C.
The component measuring point 14 predominantly detects CO and H in tube side medium2Content.
Working principle of the utility model is: by spiral shell after broken biomass material enters the drying of biomass drier 16
It revolves batcher 17 and is sent into gasification furnace 18, gasified reverse occurs with from pressure fan 22 and by the air that gas cooler 20 heats
It answers, the high-temperature fuel gas of generation enters gas cooler 20 after cyclone separator ash disposal and cools down, then by combustion gas booster fan 21
It is sent into subsequent boiler combustion power generation.
Wherein, the working principle of gas cooler are as follows: biological fuel gas enters combustion gas cooling from biological fuel gas import 9
The shell side of device 20 enters the cold of 4 tube side of heat exchanger tube with from inlet of cold air 11 through upper hydraulic barrier 5 and lower 6 baffling of hydraulic barrier
Air exchanges heat, and the air after being heated is flowed out along hot air outlet 12, and biological fuel gas after cooling is along biological fuel gas
10 outflow of outlet.Entire 20 form of gas cooler is U-tube heat exchanger, and when work, biological fuel gas lateral pressure compares air side
The high 0.1~0.5MPa of pressure, and the pipeline of hot air outlet 12 be arranged component measuring point 14, detect CO and H2 concentration, such as
14 testing result of fruit component measuring point shows that CO and H2 increase, and can judge that heat exchanger tube 4 has leak source, then close biological fuel gas into
The valve of mouth 9, carries out subsequent maintenance, system is safe and reliable.Since biological fuel gas contains tar and ash, one section is run in equipment
After time heat transfer effect, or even hair can be influenced in the viscous glutinous deposition of the wall surface of heat exchanger tube 4 and upper hydraulic barrier 5 and lower hydraulic barrier 6
Raw blocking, so the utility model is provided with several steam blowing heads 13 at the top of heater housings 1, high-temperature steam by tar and
Ash is purged straight down to the bottom of gas cooler 20, flows into outlet again in oil drain tank 8 into oil guide groove 7 is crossed along bottom curved surface.
It can be carried out steam blowing cleaning either in heater operational process or after stopping, it is easy to operate.
Claims (6)
1. a kind of cooling system for biological fuel gas, it is characterised in that: dry with biomass including biomass drier (16)
The connected screw(-type) feeder (17) of dry device (16), the gasification furnace (18) being connected with screw(-type) feeder (17), with gasification furnace (18) phase
Cyclone separator (19) even, the gas cooler (20) being connected with cyclone separator (19) are connected with gas cooler (20)
Combustion gas booster fan (21) and for gasification furnace (18) convey air pressure fan (22)；
The gas cooler (20) includes heater housings (1), and the end socket (2) for being connected and sealing with heater housings (1) adds
Biological fuel gas import (9) and several steam blowing heads (13), heater housings (1) bottom are provided at the top of hot device shell (1)
Portion is provided with oil drain tank (8) and biological fuel gas outlet (10)；Heat exchanger tube (4) are equipped with inside heater housings (1), heater case
Several upper hydraulic barriers (5) and lower hydraulic barrier (6), lower baffling gear are separately equipped with along heat exchanger tube (4) vertical direction in body (1)
Plate (6) bottom is equipped with oil guide groove (7)；Inlet of cold air (11) and hot air outlet are respectively equipped at the top and bottom of end socket (2)
(12), cold air and hot-air pass partition (3) are equipped with inside end socket (2), hot air outlet (12) is equipped with pressure-measuring-point
(15) and detection tube side medium in CO and H2The component measuring point (14) of content；The inlet of cold air (11) and heat exchanger tube
(4) inlet communication, hot air outlet (12) and heat exchanger tube (4) outlet；The tube side medium of the gas cooler (20)
For cold air；Shell side medium is hot biological fuel gas.
2. a kind of cooling system for biological fuel gas according to claim 1, it is characterised in that: the combustion gas is cold
But device (20) form is U-tube heat exchanger, and shell side medium is 0.1~0.5MPa higher than the operating pressure of tube side medium.
3. a kind of cooling system for biological fuel gas according to claim 1, it is characterised in that: the heater
Low, surrounding height and curved surface with a slope are put centered on shell (1) bottom.
4. a kind of cooling system for biological fuel gas according to claim 1, it is characterised in that: the heat exchanger tube
(4) it is equipped with no less than 2 equal number of upper hydraulic barriers (5) and lower hydraulic barrier (6), upper hydraulic barrier (5) along the vertical direction
It is equidistantly staggered with lower hydraulic barrier (6).
5. a kind of cooling system for biological fuel gas according to claim 1, it is characterised in that: the oil guide groove
(7) shape is rectangle, and effect is the impurity such as tar to be made to pass through in steam blowing and enter oil drain tank (8).
6. a kind of cooling system for biological fuel gas according to claim 1, it is characterised in that: the heater
No less than one steam blowing head (13) is provided at the top of shell (1), the position of steam blowing head (13) is arranged in upper baffling
The vapor (steam) temperature at the spacing center of baffle (5) and lower hydraulic barrier (6), purging is not less than 150 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820673521.7U CN208327931U (en) | 2018-05-08 | 2018-05-08 | A kind of cooling system for biological fuel gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820673521.7U CN208327931U (en) | 2018-05-08 | 2018-05-08 | A kind of cooling system for biological fuel gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208327931U true CN208327931U (en) | 2019-01-04 |
Family
ID=64776799
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820673521.7U Active CN208327931U (en) | 2018-05-08 | 2018-05-08 | A kind of cooling system for biological fuel gas |
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| CN (1) | CN208327931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522017A (en) * | 2021-07-13 | 2021-10-22 | 鞍钢化学科技有限公司 | Ozone tail gas destruction system and operation method thereof |
-
2018
- 2018-05-08 CN CN201820673521.7U patent/CN208327931U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522017A (en) * | 2021-07-13 | 2021-10-22 | 鞍钢化学科技有限公司 | Ozone tail gas destruction system and operation method thereof |
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