CN202390400U - Water pipe type waste heat boiler used for cooling biomass synthesis gas - Google Patents
Water pipe type waste heat boiler used for cooling biomass synthesis gas Download PDFInfo
- Publication number
- CN202390400U CN202390400U CN2011205601980U CN201120560198U CN202390400U CN 202390400 U CN202390400 U CN 202390400U CN 2011205601980 U CN2011205601980 U CN 2011205601980U CN 201120560198 U CN201120560198 U CN 201120560198U CN 202390400 U CN202390400 U CN 202390400U
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- heat boiler
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- synthesis gas
- pipe type
- heater
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The utility model relates to a water pipe type waste heat boiler used for cooling biomass synthesis gas. The water pipe type waste heat boiler comprises a boiler barrel and a furnace body arranged below the boiler barrel, wherein the furnace body is of a horizontal type structure, and an inlet joint and an outlet joint are arranged at two horizontal ends of the furnace body; the furnace body comprises a furnace wall and a plurality of heated pipes which are longitudinally arranged, top ends of all the heated pipes are communicated with an upper collecting tank by virtue of upper connecting pipes, bottom ends of all the heated pipes are communicated with a lower collecting tank by virtue of lower connecting pipes; the upper collecting tank is communicated with the boiler barrel by virtue of a steam lead-out tube and is used for recycling steam; the lower collecting tank is communicated with the bottom end of the boiler barrel by virtue of a down pipe and is used for supplying cooling water; and the two side walls of the furnace body are membrane wall tube panels, and the upper end and the lower end of each membrane wall tube panel are respectively communicated with the upper collecting tank and the lower collecting tank. According to the water pipe type waste heat boiler disclosed by the utility model, the two side walls of the furnace body are the membrane wall tube panels, thus applicable temperature range of the waste heat boiler is wider; moreover, the structure ensures good sealing property at the two sides of the furnace body, and no flame retardant coating made from refractory castable is required, thus weight of the whole equipment is obviously reduced.
Description
Technical field
The utility model relates to the cooling system of the high-temperature synthesis gas that produces behind the biomass fuel gasifying, refers to a kind of biomass synthesis gas cooling water pipe type exhaust heat boiler particularly.
Background technology
Along with society growing to energy demand, as the fossil fuel in main energy sources source in rapid minimizing.Therefore, seek the focus that the alternative energy has become social common concern, wherein environmental pollution biomass fuel less, reproducible utilization has obtained using widely.Available biomass fuel mainly contains various agricultural wastes, like rice husk, all kinds of agricultural crop straws etc., forestry waste is arranged also, like branch bavin, tree root, waste and old wood and scrap stock etc.Biomass fuel gasifying is the mode of utilizing that has unusual prospect in the various biomass fuel application modes.So-called biomass fuel gasifying is meant the thermochemical process that solid or liquid fuel is converted into geseous fuel; In this process; Carbon in free oxygen in the gasification installation (like vapourizing furnace) or combination oxygen and solid or the geseous fuel carries out thermal chemical reaction, generates inflammable gas.The synthetic gas that biomass fuel gasifying produces can be done to concentrate or commercial transportation and use after processing such as purification, cooling, compression, can supply gas turbine power generation, air feed direct combustion, biodiesel synthesis etc. specifically.
The temperature of the synthetic gas that biomass fuel directly comes out after in vapourizing furnace, gasifying is higher.In order to make synthetic gas reach industrial request for utilization, must purify, processing such as compression the processing of lowering the temperature earlier of this high-temperature synthesis gas that just requires the autopneumatolysis stove is drawn to synthetic gas.
At present, in the conventional gasification system, synthetic gas lowered the temperature to handle adopt quenching column usually, during equipment work, spray water is mixed with synthetic gas in the steel plate tube, and the temperature of synthetic gas is dropped in the TR that the purified synthesis gas equipment work requires.But the effect of water spray will inevitably cause the gas volume of synthetic gas to increase; This just requires the processing power of the follow-up purified synthesis gas equipment of quenching column also will increase; And usage quantity of purifying waste water in service and later stage sewage load also can increase accordingly, have obviously increased the construction input and the running cost of project.The great amount of heat energy that the while synthetic gas contains has also wasted the not energy-conservation and environmental protection of the total system utmost point.
Also adopt the synthetic gas after waste heat boiler is handled Quench to lower the temperature in the reality; And recovery waste heat; But refractory castable is often laid in the furnace wall of conventional waste heat boiler; The flame retardant coating that thickness is bigger makes whole waste heat boiler weight very big, and along with the temperature of required refrigerative synthetic gas improves, it is bigger that the thickness of flame retardant coating need be done.
The utility model content
The utility model technical problem to be solved just provides a kind of biomass synthesis gas cooling water pipe type exhaust heat boiler, can be applicable to synthetic gas temperature condition with higher, and its heat exchange efficiency is high, weight of equipment is light.
For solving the problems of the technologies described above; A kind of biomass synthesis gas cooling water pipe type exhaust heat boiler that the utility model provides; Comprise drum and the body of heater that is arranged at the drum below, its special feature is: said body of heater is a horizontal type structure, and inlet union and outlet connection are positioned at the horizontal two ends of body of heater; Body of heater comprises the heat pipe of furnace wall and some vertical layouts, and all the top of heat pipe is communicated with upper collecting chamber through last connecting leg, and connecting leg was communicated with the next part case under all the bottom of heat pipe was passed through; Upper collecting chamber is communicated with said drum through the steam fairlead, is used for the recycle-water steam; The next part case is communicated with the bottom of said drum through downtake, is used to provide water coolant; The two side of said body of heater is the membrane wall tube panel, and the top and bottom of membrane wall tube panel also are communicated with upper collecting chamber and next part case respectively.
In the technique scheme, the membrane wall tube panel and the top wall outer surface of said body of heater are laid with thermofin.
Further, said thermofin is the thermofin of insulating cotton material.
In the technique scheme, the bottom surface of said body of heater is connected with ash dropping hopper.
In the technique scheme, said inlet union and outlet connection are tapered.
Further, the inwall of said inlet union and outlet connection is laid with flame retardant coating.
The beneficial effect of the utility model is:
1) compares with the quenching column spray cooling; Adopted the mode of heat pipe heat exchange, thereby avoided adopting the water spray mode can increase the problem of synthetic gas gas volume, reduced to build and dropped into and running cost; Simultaneously fully absorb the heat energy in the synthetic gas, improved the environmental protection and energy saving of total system;
2) compare with common waste heat boiler; The membrane wall tube panel has been adopted in the two side of body of heater, and the TR that waste heat boiler is suitable for is wider, and (pending synthetic gas temperature can consider that synthetic gas is to corrosion of metal in 250 ~ 1000 ℃; Be not suitable for and handle the synthetic gas temperature) in the situation below 250 ℃; And this structure makes the good seal performance of body of heater both sides, and need not the flame retardant coating that refractory castable constitutes, and the weight of entire equipment is significantly alleviated;
3) body of heater is horizontal; And heat pipe arranges vertically that all the tar that helps condensing on the heat pipe flows down along heat pipe, and can discharge through ash dropping hopper; Avoid tar to stick to the phenomenon of stopping up the circulation passage of synthetic gas on the heat pipe for a long time, guaranteed the stability of equipment long-time running;
4) in the entire equipment only with a small amount of flame retardant coating, its whole heat storage capacity is little, the scene of equipment starts and to stop speed fast, can normally move rapidly, has reduced running cost.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Among the figure: 1-heat pipe, 2-membrane wall tube panel, 3-upward connecting legs, 4-upper collecting chamber, 5-following connecting leg, 6-next part case, 7-drum, 8-steam fairlead, 9-downtake, 10-ash dropping hopper, 11-thermofin, 12-inlet union, 13-outlet connection.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further to describe in detail.
As depicted in figs. 1 and 2, a kind of biomass synthesis gas cooling water pipe type exhaust heat boiler of the utility model comprises drum 7 and the body of heater that is arranged at drum 7 belows.This body of heater is a horizontal type structure, and inlet union 12 and outlet connection 13 are positioned at the horizontal two ends of body of heater, and high-temperature synthesis gas is horizontal flow in stove.Body of heater comprises the heat pipe 1 of furnace wall and some vertical layouts, and the two side of body of heater is a membrane wall tube panel 2, plays heat absorption and sealing function.High-temperature synthesis gas is when 1 of some heat pipe are mobile, and heat pipe 1 absorbs the synthetic gas waste heat to reduce the synthetic gas temperature with water coolants in the membrane wall tube panel 2.Weld with last connecting leg 3 and following connecting leg 5 respectively the top of whole heat pipes 1 and bottom, and last connecting leg 3 welds with upper collecting chamber 4 and next part case 6 respectively with 5 of following connecting legs, and the upper and lower end of membrane wall tube panel 2 also welds with upper collecting chamber 4 and next part case 6 respectively.Upper collecting chamber 4 is communicated with drum 7 through steam fairlead 8, and interface is positioned at the liquid level top of drum 7, is used to reclaim water coolant and absorbs the water vapour that produces behind the synthetic gas waste heat, and water vapour can be by other technology use of drum 7 tops derivation confession; Next part case 6 is communicated with the bottom of drum 7 through downtake 9, and the water coolant in the drum 7 gets in heat pipes 1 and the membrane wall tube panel 2 through downtake 9, next part case 6, following connecting leg 5 successively.Like this, utilize water vapor and water coolant between density difference, formed natural water cycle between drum 7 and heat pipe 1 and the membrane wall tube panel 2.
Biomass synthesis gas is when 1 of some heat pipe are mobile; Along with the heat water that constantly is cooled siphons away; Temperature constantly descends, and the tar that contains in the synthetic gas also can constantly freeze-out and stick on the surface of heat pipe 1 and membrane wall tube panel 2, and this moment, tar was in liquid state.Because heat pipe 1 is vertically to arrange with membrane wall tube panel 2,, splashes in the ash dropping hopper 10 that the body of heater bottom surface is provided with and discharge from outlet so under action of gravity, tar can flow downward along heat pipe 1 and membrane wall tube panel 2.
Above-mentioned inlet union 12 can adopt pyramidal structure with outlet connection 13, and its inwall can lay the flame retardant coating that refractory castable constitutes, and also can lay the water-cooled coil pipe in refractory castable inside according to demand.
In addition, the membrane wall tube panel 2 and the top wall outer surface of body of heater are laid with thermofin 11, and thermofin 11 preferred good heat insulating and the little insulating cotton material of density significantly alleviate the more traditional waste heat boiler of weight of equipment.
The core of the utility model is the setting of heat pipe 1 and membrane wall tube panel 2, can fully absorb the synthetic gas waste heat, and refractory castable that need not be thick and heavy, and its heat exchange efficiency is high, weight of equipment is light.So its protection domain is not limited to the foregoing description.Obviously, those skilled in the art can carry out various changes and distortion and not break away from the scope and the spirit of the utility model the utility model, and for example: the structure that the body of heater bottom surface receives tar and dust is not limited to ash dropping hopper 10; The shape of inlet union 12 and outlet connection 13 and whether lay flame retardant coating and water-cooled coil pipe etc. is set also can adjusts as required etc.If these changes and distortion belong in the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and is out of shape interior.
Claims (6)
1. biomass synthesis gas cooling water pipe type exhaust heat boiler; Comprise drum (7) and be arranged at the body of heater of drum (7) below; It is characterized in that: said body of heater is a horizontal type structure, and inlet union (12) and outlet connection (13) are positioned at the horizontal two ends of body of heater; Body of heater comprises the heat pipe (1) of furnace wall and some vertical layouts, and all the top of heat pipe (1) is communicated with upper collecting chamber (4) through last connecting leg (3), and connecting leg (5) was communicated with next part case (6) under all the bottom of heat pipe (1) was passed through; Upper collecting chamber (4) is communicated with said drum (7) through steam fairlead (8), is used for the recycle-water steam; Next part case (6) is communicated with the bottom of said drum (7) through downtake (9), is used to provide water coolant; The two side of said body of heater is membrane wall tube panel (2), and the top and bottom of membrane wall tube panel (2) also are communicated with upper collecting chamber (4) and next part case (6) respectively.
2. biomass synthesis gas cooling water pipe type exhaust heat boiler according to claim 1 is characterized in that: the membrane wall tube panel (2) and the top wall outer surface of said body of heater are laid with thermofin (11).
3. biomass synthesis gas cooling water pipe type exhaust heat boiler according to claim 2, it is characterized in that: said thermofin (11) is the thermofin (11) of insulating cotton material.
4. according to the described biomass synthesis gas cooling water of arbitrary claim pipe type exhaust heat boiler in the claim 1 to 3, it is characterized in that: the bottom surface of said body of heater is connected with ash dropping hopper (10).
5. according to the described biomass synthesis gas cooling water of arbitrary claim pipe type exhaust heat boiler in the claim 1 to 3, it is characterized in that: said inlet union (12) and outlet connection (13) are tapered.
6. biomass synthesis gas cooling water pipe type exhaust heat boiler according to claim 5 is characterized in that: the inwall of said inlet union (12) and outlet connection (13) is laid with flame retardant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205601980U CN202390400U (en) | 2011-12-29 | 2011-12-29 | Water pipe type waste heat boiler used for cooling biomass synthesis gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205601980U CN202390400U (en) | 2011-12-29 | 2011-12-29 | Water pipe type waste heat boiler used for cooling biomass synthesis gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202390400U true CN202390400U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205601980U Expired - Lifetime CN202390400U (en) | 2011-12-29 | 2011-12-29 | Water pipe type waste heat boiler used for cooling biomass synthesis gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202390400U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097536A1 (en) * | 2011-12-29 | 2013-07-04 | 武汉凯迪工程技术研究总院有限公司 | Process for cooling and washing biomass syngas and system thereof |
| CN111207510A (en) * | 2020-01-19 | 2020-05-29 | 河北建筑工程学院 | No fan formula solid heat accumulation electric boiler |
| CN111707121A (en) * | 2020-07-01 | 2020-09-25 | 王军 | Industrial heat exchanger |
-
2011
- 2011-12-29 CN CN2011205601980U patent/CN202390400U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097536A1 (en) * | 2011-12-29 | 2013-07-04 | 武汉凯迪工程技术研究总院有限公司 | Process for cooling and washing biomass syngas and system thereof |
| CN111207510A (en) * | 2020-01-19 | 2020-05-29 | 河北建筑工程学院 | No fan formula solid heat accumulation electric boiler |
| CN111707121A (en) * | 2020-07-01 | 2020-09-25 | 王军 | Industrial heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
|
| CX01 | Expiry of patent term |