CN108485720B - Cooling system and cooling method for biomass fuel gas - Google Patents
Cooling system and cooling method for biomass fuel gas Download PDFInfo
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- CN108485720B CN108485720B CN201810429473.1A CN201810429473A CN108485720B CN 108485720 B CN108485720 B CN 108485720B CN 201810429473 A CN201810429473 A CN 201810429473A CN 108485720 B CN108485720 B CN 108485720B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/30—Fuel charging devices
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Solid-Fuel Combustion (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a cooling system and a cooling method for biomass fuel gas, wherein the cooling system comprises a biomass dryer, a screw feeder, a gasification furnace, a cyclone separator, a fuel gas cooler, a fuel gas booster fan and a primary fan for supplying air to the gasification furnace, which are connected in sequence; the process omits a heat conduction oil system in the traditional process, directly exchanges heat between biomass fuel gas and air, and has low energy consumption and low investment; the gas cooler is in the form of a U-shaped tube heat exchanger and is used for heat exchange between biomass gas and air, when the gas cooler works, the pressure of the side of the biomass gas is 0.1-0.5 MPa higher than that of the air side, and a component measuring point is arranged in an air outlet pipeline to detect CO and H 2 The concentration of the heat exchange tube can be effectively judged in time, whether the heat exchange tube has leakage points or not is judged, and the system is safe and reliable; meanwhile, the top of the heater shell is provided with the steam purging heads, so that steam purging and cleaning can be performed in the operation process of the heater or after the heater is stopped, and the operation is simple and convenient and the service life of the heater is long.
Description
Technical Field
The invention belongs to the technical field of energy and chemical industry, and particularly relates to a cooling system and a cooling method for biomass fuel gas. .
Background
Along with the urgent national demands for optimizing energy structures, guaranteeing energy safety, improving environmental quality and preventing and treating haze, the importance of cleaning renewable biomass energy is higher and higher. The biomass energy is efficiently developed and utilized by utilizing the biomass gasification coupling power generation technology, so that the consumption of coal resources can be reduced, the environment is protected, the pollutant emission is reduced, the energy structure optimization is promoted, and the biomass energy generation device has important significance in the aspects of reasonably utilizing project local biomass resources, enhancing the economic benefit of enterprises, increasing the income of peasants and the like.
The traditional technology of the existing biomass gasification coupling technology in China is that biomass raw materials are gasified in a gasification furnace to generate fuel gas, and then the fuel gas is sent into a boiler to be combusted together with pulverized coal to generate steam for power generation after dust removal and temperature reduction. Because biomass fuel gas has higher temperature and contains tar and ash, in order to prevent tar from precipitating and avoid pipeline blockage, a heat conduction oil system is generally adopted for heat exchange and cooling, and then heat conduction oil is used for indirectly heating air. However, the heat conduction oil system has complex process, large heat loss and higher investment and energy consumption. If the biomass fuel gas and the air are directly subjected to heat exchange, the process is relatively simple, the investment and the energy consumption are low, but when the heat exchanger is in internal leakage, the high-temperature biomass fuel gas is in contact with the air, so that the contact is very dangerous.
Therefore, in order to shorten the technological process of the existing biomass power generation technology and reduce investment and energy consumption, developing a safe and reliable cooling process and cooler structure for biomass fuel gas is a very significant task.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a cooling system and a cooling method for biomass fuel gas, which can omit a heat conduction oil system in the traditional process, and can directly exchange heat between the biomass fuel gas and air, thereby having low energy consumption and low investment.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
a cooling system for biomass fuel gas comprises a biomass dryer 16, a screw feeder 17 connected with the biomass dryer 16, a gasification furnace 18 connected with the screw feeder 17, a cyclone separator 19 connected with the gasification furnace 18, a fuel gas cooler 20 connected with the cyclone separator 19, a fuel gas booster fan 21 connected with the fuel gas cooler 20 and a blower 22 for conveying air to the gasification furnace 18;
the gas cooler 20 comprises a heater shell 1, a sealing head 2 connected with the heater shell 1 and sealed, a biomass gas inlet 9 and a plurality of steam purging heads 13 are arranged at the top of the heater shell 1, and a oil collecting groove 8 and a biomass gas outlet 10 are arranged at the bottom of the heater shell 1; the inside of the heater shell 1 is provided with a heat exchange tube 4, a plurality of upper baffle plates 5 and lower baffle plates 6 are arranged in the heater shell 1 at intervals along the vertical direction of the heat exchange tube 4, and an oil guide groove 7 is arranged at the bottom of the lower baffle plates 6; the top and the bottom of the seal head 2 are respectively provided with a cold air inlet 11 and a hot air outlet 12, a cold air and hot air separation partition plate 3 is arranged in the seal head 2, and a pressure measuring point 15 and detecting CO and H in a tube side medium are arranged on the hot air outlet 12 2 A component measuring point 14 of the content; the cold air inlet 11 is communicated with the inlet of the heat exchange tube 4, and the hot air outlet 12 is communicated with the outlet of the heat exchange tube 4; the tube side medium of the gas cooler 20 is cold air; the shell side medium is hot biomass fuel gas.
The gas cooler 20 is in the form of a U-shaped tube heat exchanger, and the shell side medium has a working pressure which is 0.1-0.5 MPa higher than that of the tube side medium.
The bottom of the heater shell 1 is a curved surface with a low center point, high periphery and gradient.
The heat exchange tube 4 is provided with at least 2 equal numbers of upper baffle plates 5 and lower baffle plates 6 along the vertical direction, and the upper baffle plates 5 and the lower baffle plates 6 are arranged in an equidistant staggered manner.
The oil guide groove 7 is rectangular in shape, and has the function of enabling impurities such as tar to pass through and enter the oil collecting groove 8 during steam purging.
The top of the heater shell 1 is provided with at least one steam blowing head 13, the position of the steam blowing head 13 is arranged at the center of the distance between the upper baffle plate 5 and the lower baffle plate 6, and the temperature of steam for blowing is not lower than 150 ℃.
The cooling method of the cooling system for biomass fuel gas,
the crushed biomass raw material enters a biomass dryer 16 to be dried, then is sent into a gasification furnace 18 by a screw feeder 17, is subjected to gasification reaction with air which is sent from a blower 22 and is heated by a gas cooler 20, and the generated high-temperature gas is subjected to ash removal by a cyclone separator, enters the gas cooler 20 to be cooled, and is sent into a subsequent boiler by a gas booster fan 21 to be combusted to generate electricity;
in the gas cooler 20, biomass gas enters the shell side of the gas cooler 20 from the biomass gas inlet 9, is baffled by the upper baffling baffle 5 and the lower baffling baffle 6, exchanges heat with cold air entering the tube side of the heat exchange tube 4 from the cold air inlet 11, flows out along the hot air outlet 12 after being heated, and flows out along the biomass gas outlet 10 after being cooled; the whole fuel gas cooler 20 is in the form of a U-shaped tube heat exchanger, when the fuel gas cooler works, the pressure of the biomass fuel gas side is 0.1-0.5 MPa higher than the pressure of the air side, a component measuring point 14 is arranged on a pipeline of a hot air outlet 12, the concentration of CO and H2 is detected, if the detection result of the component measuring point 14 shows that the CO and the H2 are increased, the leakage point of the heat exchange tube 4 can be judged, the valve of the biomass fuel gas inlet 9 is closed for subsequent maintenance, and the system is safe and reliable; because biomass fuel gas contains tar and ash, the tar and the ash are sticky and deposited on the wall surfaces of the heat exchange pipe 4, the upper baffle plate 5 and the lower baffle plate 6 after the equipment runs for a period of time, the heat exchange effect is affected, even the equipment is blocked, a plurality of steam purging heads 13 are arranged at the top of the heater shell 1, high-temperature steam vertically purges the tar and the ash downwards to the bottom of the fuel gas cooler 20, and the tar and the ash flow into the oil guide groove 7 along the curved surface of the bottom and then flow into the oil collecting groove 8 for discharging; the steam sweeping and cleaning can be carried out both in the operation process and after the stop of the heater, and the operation is simple and convenient.
Compared with the prior art, the invention has the following advantages:
the invention relates to a cooling system for biomass fuel gas, which comprises a biomass dryer 16, a screw feeder 17, a gasifier 18, a cyclone separator 19, a fuel gas cooler 20, a fuel gas booster fan 21 and a primary fan 22 for supplying air to the gasifier, which are connected in sequence. The heat conduction oil system in the traditional process is omitted, the biomass fuel gas and the air are directly subjected to heat exchange, the energy consumption is low, and the investment is low.
The gas cooler 20 is characterized by a form of a U-tube heat exchanger for heat exchange between the biomass gas and air, and because the biomass gas contains tar and ash, the shell side medium is hot biomass gas and the tube side medium is cleaner cold air. When the biomass gas heat exchange device works, the pressure of the biomass gas side is 0.1-0.5 MPa higher than the pressure of the air side, the component measuring points 14 are arranged in the air outlet pipeline, the concentration of CO and H2 is detected, if the detection result of the component measuring points 14 shows that the CO and H2 are increased, the leakage point of the heat exchange tube 4 can be judged, the valve of the biomass gas inlet can be closed for subsequent maintenance, and the system is safe and reliable. Meanwhile, a plurality of steam blowing heads 13 are arranged at the top of the heater shell 1, tar and ash are blown down to the bottom of the heater vertically by high-temperature steam, and enter the oil guide groove 7 along the curved surface of the bottom to flow into the oil gathering groove 8 and then are discharged. The steam sweeping and cleaning can be carried out both in the operation process and after the stop of the heater, and the operation is simple and convenient.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Fig. 2 is a schematic diagram of the structure of the gas cooler in the present invention.
FIG. 3 is a schematic view of a partial structure of a gas cooler according to the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings. Those skilled in the art will appreciate that the following is not a limitation on the scope of the present invention. Any modifications and variations made on the basis of the present invention are within the scope of the present invention.
As shown in fig. 1, the cooling system for biomass gas according to the present invention comprises a biomass dryer 16, a screw feeder 17 connected to the biomass dryer 16, a gasification furnace 18 connected to the screw feeder 17, a cyclone 19 connected to the gasification furnace 18, a gas cooler 20 connected to the cyclone 19, a gas booster fan 21 connected to the gas cooler 20, and a blower 22 for delivering air to the gasification furnace 18.
As shown in fig. 2 and 3, the gas cooler 20 is in the form of a U-tube heat exchanger, and comprises a heater housing 1, a sealing head 2 connected with the heater housing 1 and sealed, a biomass gas inlet 9 and a plurality of steam purging heads 13 are arranged at the top of the heater housing 1, and a oil collecting tank 8 and a biomass gas outlet 10 are arranged at the bottom of the heater housing 1. The heater shell 1 is internally provided with a heat exchange tube 4, a plurality of upper baffle plates 5 and lower baffle plates 6 are arranged in the heater shell 1 at intervals along the vertical direction of the heat exchange tube 4, and an oil guide groove 7 is arranged at the bottom of the lower baffle plates 6. The top and the bottom of the seal head 2 are respectively provided with an air inlet 11 and an air outlet 12, a separation partition plate 3 is arranged in the seal head 2, and a component measuring point 14 and a pressure measuring point 15 are arranged on the air outlet 12; the cold air inlet 11 is communicated with the inlet of the heat exchange tube 4, and the hot air outlet 12 is communicated with the outlet of the heat exchange tube 4.
As a preferred embodiment of the invention, the air heater is in the form of a U-shaped tube heat exchanger, and the tube side medium is cold air; the shell side medium is hot biomass fuel gas. The working pressure of the shell side medium is 0.1-0.5 MPa higher than that of the tube side medium.
In a preferred embodiment of the present invention, the bottom of the heater housing 1 is a curved surface with a low center point, slightly higher periphery and gradient.
As a preferred embodiment of the present invention, the heat exchange tube 4 is disposed in the heater casing 1, and the heat exchange tube 4 is provided with at least 2 equal numbers of upper baffle plates 5 and lower baffle plates 6 along the vertical direction, and the baffle plates 5 and the lower baffle plates 6 are arranged in an equidistant staggered manner.
As a preferred embodiment of the present invention, the bottom of the lower baffle 6 is provided with an oil guiding groove 7, and the shape of the oil guiding groove 7 is rectangular, which is used for allowing impurities such as tar to pass through and enter the oil collecting groove 8 during steam purging.
As a preferred embodiment of the present invention, at least one steam purge head 13 is disposed at the top of the heater housing 1, the position of the steam purge head 13 is disposed at the center of the distance between the upper baffle plate 5 and the lower baffle plate 6, and the temperature of the steam for purging is not lower than 150 ℃.
The component measuring point 14 mainly detects CO and H in a tube side medium 2 The content is as follows.
According to the cooling method of the cooling system for biomass fuel gas, crushed biomass raw materials enter a biomass dryer 16 to be dried, then are sent into a gasification furnace 18 by a screw feeder 17, undergo gasification reaction with air which is sent from a blower 22 and is heated by a fuel gas cooler 20, and generated high-temperature fuel gas enters the fuel gas cooler 20 to be cooled after being subjected to ash removal by a cyclone separator, and then are sent into a subsequent boiler by a fuel gas booster fan 21 to be combusted to generate electricity.
In the gas cooler 20, biomass gas enters the shell side of the gas cooler 20 from the biomass gas inlet 9, is baffled by the upper baffling baffle 5 and the lower baffling baffle 6, exchanges heat with cold air entering the tube side of the heat exchange tube 4 from the cold air inlet 11, flows out along the hot air outlet 12 after being heated, and flows out along the biomass gas outlet 10 after being cooled. The whole fuel gas cooler 20 is in the form of a U-shaped tube heat exchanger, when the fuel gas cooler works, the pressure of the biomass fuel gas side is 0.1-0.5 MPa higher than the pressure of the air side, a component measuring point 14 is arranged on a pipeline of the hot air outlet 12, the concentration of CO and H2 is detected, if the detection result of the component measuring point 14 shows that the CO and the H2 are increased, the leakage point of the heat exchange tube 4 can be judged, the valve of the biomass fuel gas inlet 9 is closed for subsequent maintenance, and the system is safe and reliable. Because biomass fuel gas contains tar and ash, the tar and the ash can be sticky and deposited on the wall surfaces of the heat exchange pipe 4, the upper baffle plate 5 and the lower baffle plate 6 after the equipment runs for a period of time, the heat exchange effect is affected, and even the blockage occurs, so the invention is provided with a plurality of steam blowing heads 13 at the top of the heater shell 1, and high-temperature steam vertically blows the tar and the ash downwards to the bottom of the fuel gas cooler 20, and flows into the oil collecting groove 8 along the curved surface of the bottom, flows into the oil guiding groove 7 and is discharged outwards. The steam sweeping and cleaning can be carried out both in the operation process and after the stop of the heater, and the operation is simple and convenient.
Claims (4)
1. A cooling system for biomass fuel gas, characterized in that: comprises a biomass dryer (16), a screw feeder (17) connected with the biomass dryer (16), a gasification furnace (18) connected with the screw feeder (17), a cyclone separator (19) connected with the gasification furnace (18), a gas cooler (20) connected with the cyclone separator (19), a gas booster fan (21) connected with the gas cooler (20) and a blower (22) for conveying air for the gasification furnace (18);
the gas cooler (20) comprises a heater shell (1), a sealing head (2) connected with the heater shell (1) and sealed, a biomass gas inlet (9) and a plurality of steam purging heads (13) are arranged at the top of the heater shell (1), and a oil collecting groove (8) and a biomass gas outlet (10) are arranged at the bottom of the heater shell (1); the heat exchange tube (4) is arranged in the heater shell (1), a plurality of upper baffle plates (5) and lower baffle plates (6) are arranged in the heater shell (1) at intervals along the vertical direction of the heat exchange tube (4), and an oil guide groove (7) is arranged at the bottom of the lower baffle plates (6); the top and the bottom of the seal head (2) are respectively provided with a cold air inlet (11) and a hot air outlet (12), the inside of the seal head (2) is provided with a cold air and hot air separation partition board (3), and the hot air outlet (12) is provided with a pressure measuring point (15) and detects CO and H in a tube side medium 2 A component measuring point (14) of the content; the cold air inlet (11) is communicated with the inlet of the heat exchange tube (4), and the hot air outlet (12) is communicated with the outlet of the heat exchange tube (4); the tube side medium of the gas cooler (20) is cold air; the shell side medium is hot biomass fuel gas;
the gas cooler (20) is in a U-shaped tube heat exchanger, and the working pressure of a shell side medium is 0.1-0.5 MPa higher than that of a tube side medium;
the bottom of the heater shell (1) is a curved surface with a low center point, high periphery and gradient;
the top of the heater shell (1) is provided with at least one steam blowing head (13), the position of the steam blowing head (13) is arranged at the center of the distance between the upper baffle plate (5) and the lower baffle plate (6), and the temperature of steam for blowing is not lower than 150 ℃;
in the gas cooler (20), biomass gas enters the shell side of the gas cooler (20) from a biomass gas inlet (9), is baffled by an upper baffling baffle (5) and a lower baffling baffle (6), exchanges heat with cold air entering the tube side of a heat exchange tube (4) from a cold air inlet (11), flows out along a hot air outlet (12), and flows out along a biomass gas outlet (10); the whole fuel gas cooler (20) is in a U-shaped pipe heat exchanger, when the fuel gas cooler works, the pressure of the biomass fuel gas side is 0.1-0.5 MPa higher than that of the air side, a component measuring point (14) is arranged on a pipeline of a hot air outlet (12), the concentration of CO and H2 is detected, if the detection result of the component measuring point (14) shows that the CO and the H2 are increased, the leakage point of the heat exchange pipe (4) can be judged, the valve of the biomass fuel gas inlet (9) is closed, the subsequent maintenance is carried out, and the system is safe and reliable; because biomass fuel gas contains tar and ash, after the equipment runs for a period of time, the biomass fuel gas can be sticky and deposited on the wall surfaces of a heat exchange pipe (4), an upper baffle plate (5) and a lower baffle plate (6), the heat exchange effect is affected, even the biomass fuel gas is blocked, a plurality of steam blowing heads (13) are arranged at the top of a heater shell (1), high-temperature steam vertically blows the tar and the ash downwards to the bottom of a fuel gas cooler (20), and flows into an oil guide groove (7) along the curved surface of the bottom and then is discharged; the steam sweeping and cleaning can be carried out both in the operation process and after the stop of the heater, and the operation is simple and convenient.
2. A cooling system for biomass fuel gas according to claim 1, characterized in that: the heat exchange tube (4) is provided with at least 2 equal-quantity upper baffle plates (5) and lower baffle plates (6) along the vertical direction, and the upper baffle plates (5) and the lower baffle plates (6) are arranged in an equidistant staggered manner.
3. A cooling system for biomass fuel gas according to claim 1, characterized in that: the oil guide groove (7) is rectangular in shape, and the oil guide groove is used for enabling impurities such as tar to pass through and enter the oil collecting groove (8) when steam is purged.
4. A cooling method of a cooling system for biomass gas according to any one of claims 1 to 3, characterized in that:
the crushed biomass raw material enters a biomass dryer (16) to be dried, then is sent into a gasification furnace (18) by a screw feeder (17), and is subjected to gasification reaction with air which is sent from a blower (22) and is heated by a gas cooler (20), and generated high-temperature gas enters the gas cooler (20) to be cooled after being subjected to ash removal by a cyclone separator, and then is sent into a subsequent boiler by a gas booster fan (21) to be combusted to generate electricity;
in the gas cooler (20), biomass gas enters the shell side of the gas cooler (20) from a biomass gas inlet (9), is baffled by an upper baffling baffle (5) and a lower baffling baffle (6), exchanges heat with cold air entering the tube side of a heat exchange tube (4) from a cold air inlet (11), flows out along a hot air outlet (12), and flows out along a biomass gas outlet (10); the whole fuel gas cooler (20) is in a U-shaped pipe heat exchanger, when the fuel gas cooler works, the pressure of the biomass fuel gas side is 0.1-0.5 MPa higher than that of the air side, a component measuring point (14) is arranged on a pipeline of a hot air outlet (12), the concentration of CO and H2 is detected, if the detection result of the component measuring point (14) shows that the CO and the H2 are increased, the leakage point of the heat exchange pipe (4) can be judged, the valve of the biomass fuel gas inlet (9) is closed, the subsequent maintenance is carried out, and the system is safe and reliable; because biomass fuel gas contains tar and ash, after the equipment runs for a period of time, the biomass fuel gas can be sticky and deposited on the wall surfaces of a heat exchange pipe (4), an upper baffle plate (5) and a lower baffle plate (6), the heat exchange effect is affected, even the biomass fuel gas is blocked, a plurality of steam blowing heads (13) are arranged at the top of a heater shell (1), high-temperature steam vertically blows the tar and the ash downwards to the bottom of a fuel gas cooler (20), and flows into an oil guide groove (7) along the curved surface of the bottom and then is discharged; the steam sweeping and cleaning can be carried out both in the operation process and after the stop of the heater, and the operation is simple and convenient.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810429473.1A CN108485720B (en) | 2018-05-08 | 2018-05-08 | Cooling system and cooling method for biomass fuel gas |
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| CN201810429473.1A CN108485720B (en) | 2018-05-08 | 2018-05-08 | Cooling system and cooling method for biomass fuel gas |
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| CN108485720B true CN108485720B (en) | 2023-07-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111280185A (en) * | 2020-03-24 | 2020-06-16 | 青海大学 | Anti-virus disinfectant and preparation method thereof |
| 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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| GB153453A (en) * | 1919-10-16 | 1920-11-11 | Faconeisen Walzwerk L Mannstaedt | Improvements relating to gas coolers |
| CN102093916A (en) * | 2009-12-11 | 2011-06-15 | 深圳市兖能环保科技有限公司 | Method for preparing fuel gas by using garbage microwave cracked pyrolysis gas and tar-removing and de-dusting equipment |
| CN202936392U (en) * | 2012-08-30 | 2013-05-15 | 上海锅炉厂有限公司 | Radiation and convection heat exchange integrated synthesis gas cooler |
| CN103131432A (en) * | 2013-02-27 | 2013-06-05 | 北京旭阳化工技术研究院有限公司 | Method for recovering waste heat from coke oven raw gas |
| CN205878970U (en) * | 2016-08-03 | 2017-01-11 | 上海阿普达实业有限公司 | Shell -and -tube heat exchanger |
-
2018
- 2018-05-08 CN CN201810429473.1A patent/CN108485720B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB153453A (en) * | 1919-10-16 | 1920-11-11 | Faconeisen Walzwerk L Mannstaedt | Improvements relating to gas coolers |
| CN102093916A (en) * | 2009-12-11 | 2011-06-15 | 深圳市兖能环保科技有限公司 | Method for preparing fuel gas by using garbage microwave cracked pyrolysis gas and tar-removing and de-dusting equipment |
| CN202936392U (en) * | 2012-08-30 | 2013-05-15 | 上海锅炉厂有限公司 | Radiation and convection heat exchange integrated synthesis gas cooler |
| CN103131432A (en) * | 2013-02-27 | 2013-06-05 | 北京旭阳化工技术研究院有限公司 | Method for recovering waste heat from coke oven raw gas |
| CN205878970U (en) * | 2016-08-03 | 2017-01-11 | 上海阿普达实业有限公司 | Shell -and -tube heat exchanger |
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| CN108485720A (en) | 2018-09-04 |
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