CN108059981B - Crude gas cooling and purifying device - Google Patents
Crude gas cooling and purifying device Download PDFInfo
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- CN108059981B CN108059981B CN201711459758.1A CN201711459758A CN108059981B CN 108059981 B CN108059981 B CN 108059981B CN 201711459758 A CN201711459758 A CN 201711459758A CN 108059981 B CN108059981 B CN 108059981B
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- pipe
- water ring
- cooling
- ring pipe
- cooling water
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- 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
- C10K1/06—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials combined with spraying with water
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- 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
- C10K1/002—Removal of contaminants
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- 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
- C10K1/02—Dust removal
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- 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
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/101—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids with water only
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
Abstract
A crude gas cooling and purifying device and a purifying method thereof. At present, a coal water slurry gasification furnace occupies a wide market in the field of coal chemical industry, and a crude coal gas cooling and purifying device commonly used for the coal water slurry gasification furnace is mainly a GE chilling ring, most of the chilling ring is a finished product imported from abroad, and the device has a complex structure, great production and processing difficulty and high comprehensive purchase cost. A crude gas cooling and purifying device comprises: the cooling water ring pipe assembly and the cooling water inlet connecting pipe assembly are connected through a water ring pipe connecting flange (5), a connecting pipe (6), an upper semi-water ring pipe (7), a lower semi-water ring pipe (8), a spray pipe (9) and a blocking plate (10) to form the cooling water ring pipe assembly, the cooling water inlet connecting pipe assembly is composed of an inlet flange (1), a reinforcing pipe (2), an inlet connecting flange (3) and a fastener (4), and the cooling water ring pipe assembly and the cooling water inlet connecting pipe assembly form a coarse coal gas cooling and purifying device. The invention is applied to cooling and purifying crude coal gas.
Description
The technical field is as follows:
the invention relates to a crude gas cooling and purifying device.
Background art:
in the field of coal chemical industry, coal is finally prepared into products such as methane, methanol, glycol, olefin, chemical fertilizer and the like, the first process is to gasify the coal through coal combustion to generate crude gas, the main gas components of the crude gas are effective components such as hydrogen, carbon monoxide and the like, and solid impurity particles such as raw material ash and combustion slag and the like, and in order to obtain the crude gas which is low in temperature and does not contain the solid impurity particles, the crude gas in gasification equipment needs to be cooled and purified.
At present, a coal water slurry gasification furnace occupies a wide market in the field of coal chemical industry, and a crude coal gas cooling and purifying device commonly used for the coal water slurry gasification furnace is mainly a GE chilling ring, most of the chilling ring is a finished product imported from abroad, and the device has a complex structure, great production and processing difficulty and high comprehensive purchase cost.
The invention content is as follows:
the invention aims to provide a crude gas cooling and purifying device for a coal gasification device, which improves the cooling and purifying efficiency of crude gas, has simple structure and simple operation, and is easy to process, install, overhaul and replace.
The above purpose is realized by the following technical scheme:
a crude gas cooling and purifying device comprises: the cooling water ring pipe assembly consists of a water ring pipe connecting flange, a connecting pipe, an upper semi-water ring pipe, a lower semi-water ring pipe, a spray pipe and a blocking plate, the cooling water inlet connecting pipe assembly consists of an inlet flange, a reinforcing pipe, an inlet connecting flange and a fastening piece, the fastening piece consists of a bolt, a nut and a winding gasket and is used for connecting the cooling water ring pipe assembly and the cooling water inlet connecting pipe assembly together, and the cooling water ring pipe assembly and the cooling water inlet connecting pipe assembly form a coarse coal gas cooling and purifying device.
The lower semi-water ring pipe is connected with the spray pipes, a group of spray pipes are uniformly distributed below the lower semi-water ring pipe, the lower semi-water ring pipe is connected with one another to form a water ring pipe, the upper semi-water ring pipe is welded with the connecting pipe, the connecting pipe is connected with the water ring pipe connecting flange, and the bottom of each spray pipe is connected with the blocking plate.
The coarse coal gas cooling and purifying device is characterized in that the inlet flange is connected with one end of the reinforcing pipe, the other end of the reinforcing pipe is connected with the inlet connecting flange, and the inlet connecting flange is connected with the water ring pipe connecting flange through the fastening piece.
The crude gas cooling and purifying device is characterized in that the number and the angle of the spray pipes and the pipe holes are increased or decreased according to the crude gas flow, and the number of the cooling water inlet connecting pipe assemblies is increased or decreased according to the required cooling water flow.
The coarse coal gas cooling and purifying device is characterized in that a cooling water overflow seam is arranged on the outer side of the lower semi-water circular pipe, and a group of small holes are formed in the spray pipe.
According to the purification method of the crude gas cooling and purifying device, the lower semi-water ring pipe is connected with the spray pipes, the spray pipes are uniformly distributed below the lower semi-water ring pipe, cooling water sprayed out from the spray pipes in the radial direction is fully mixed with crude gas coming from the upper part of equipment to carry out primary cooling and purification, meanwhile, the crude gas is cooled and ash and slag in the crude gas are separated, so that the cooling water overflows from an overflow seam on the outer side of the lower semi-water ring pipe to form a uniform water film, and diffused crude gas is cooled and purified for the second time.
The invention has the beneficial effects that:
1. the crude gas cooling and purifying device has high crude gas cooling and purifying efficiency, the spray area of cooling water is enlarged due to the design of the spray pipes, the mixing of the cooling water and the crude gas is better realized, and the cooling and purifying device is provided with a two-stage cooling and purifying structure with radial spray and axial overflow water films, so that the high-efficiency cooling and purifying are realized.
The cooling water flow of the invention is easy to adjust, the number and the angle of the spray pipes and the pipe holes are increased and decreased according to the crude gas flow, and the number and the specification and the size of the cooling water inlet connecting pipe components are increased and decreased according to the required cooling water flow.
The invention forms the water ring pipe by two semi-water ring pipes, and the strength of the water ring pipe can be enhanced by the special design of the lower semi-water ring pipe, thereby being beneficial to the installation of the spray pipe and better ensuring the precision of the water ring pipe in the processing and assembling process.
The invention is divided into a cooling water ring pipe assembly and a cooling water inlet connecting pipe assembly which are connected together through fasteners (namely bolts, nuts and winding gaskets). The structure is simple, the operation is simple, and the device has the characteristics of easy processing, installation, overhaul and replacement.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a bottom view of fig. 1.
In the figure: 1. the water ring pipe comprises an inlet flange, 2, a reinforcing pipe, 3, an inlet connecting flange, 4, a fastener, 5, a water ring pipe connecting flange, 6, a connecting pipe, 7, an upper semi-water ring pipe, 8, a lower semi-water ring pipe, 9, a spray pipe, 10, a blocking plate, 11 and a cooling water overflow seam.
The specific implementation mode is as follows:
example 1:
a crude gas cooling and purifying device comprises: the cooling water ring pipe assembly and the cooling water inlet connecting pipe assembly are combined, the cooling water ring pipe assembly is composed of a water ring pipe connecting flange 5, a connecting pipe 6, an upper half water ring pipe 7, a lower half water ring pipe 8, a spray pipe 9 and a blocking plate 10, the cooling water inlet connecting pipe assembly is composed of an inlet flange 1, a reinforcing pipe 2, an inlet connecting flange 3 and a fastening piece 4, the fastening piece is composed of bolts, nuts and winding gaskets and is used for connecting the cooling water ring pipe assembly and the cooling water inlet connecting pipe assembly together, and the cooling water ring pipe assembly and the cooling water inlet connecting pipe assembly form a coarse coal gas cooling and purifying device.
Example 2:
according to the crude gas cooling and purifying device in embodiment 1, the lower semi-water ring pipe is connected with the spray pipes, a group of the spray pipes are uniformly distributed below the lower semi-water ring pipe, the lower semi-water ring pipe is connected with the lower semi-water ring pipe to form a water ring pipe, the lower semi-water ring pipe and the upper semi-water ring pipe are welded with the connecting pipes, the connecting pipes are connected with the water ring pipe through flanges, and the bottoms of the spray pipes are connected with the blocking plates.
Example 3:
according to the crude gas cooling and purifying device in embodiment 1 or 2, the inlet flange is connected with one end of the reinforcing pipe, the other end of the reinforcing pipe is connected with the inlet connecting flange, and the inlet connecting flange is connected with the water ring pipe connecting flange through the fastening piece.
Example 4:
according to the raw gas cooling and purifying device in embodiment 1, 2 or 3, the number and the angle of the spray pipes and the pipe holes are increased or decreased according to the raw gas flow, and the number and the specification and the size of the cooling water inlet connecting pipe assembly are increased or decreased according to the required cooling water flow.
Example 5:
according to the crude gas cooling and purifying device of the embodiment 1, 2, 3 or 4, the outer side of the lower semi-water circular pipe (8) is provided with a cooling water overflow seam, and a plurality of small holes are formed in the spray pipe.
Example 6:
in the method for cooling and purifying raw gas according to any one of embodiments 1 to 5, the lower semi-circular water pipe is connected to the spray pipes, the spray pipes are uniformly distributed below the lower semi-circular water pipe, the cooling water sprayed radially from the spray pipes is fully mixed with the raw gas coming from the upper part of the equipment to carry out primary cooling and purification, simultaneously, the raw gas is cooled and ash and slag in the raw gas are separated, the cooling water overflows from the cooling water overflow seams 11 on the outer side of the lower semi-circular water pipe to form uniform water films, and secondary cooling and purification are carried out on the diffused raw gas.
Claims (1)
1. A crude gas cooling and purifying device comprises: cooling water ring pipe assembly and cooling water entry splicing subassembly, characterized by: the cooling water ring pipe assembly consists of a water ring pipe connecting flange, a connecting pipe, an upper semi-water ring pipe, a lower semi-water ring pipe, a spray pipe and a blocking plate, the cooling water inlet connecting pipe assembly consists of an inlet flange, a reinforcing pipe, an inlet connecting flange and a fastener, the fastener connects the cooling water ring pipe assembly and the cooling water inlet connecting pipe assembly together, and the cooling water ring pipe assembly and the cooling water inlet connecting pipe assembly form a crude gas cooling and purifying device;
the lower semi-water ring pipe is connected with the spray pipes, the spray pipes are uniformly distributed below the lower semi-water ring pipe, the lower semi-water ring pipe and the upper semi-water ring pipe are connected to form a water ring pipe, the lower semi-water ring pipe and the upper semi-water ring pipe are welded with the connecting pipes, the connecting pipes are connected with the water ring pipe connecting flange, and the bottoms of the spray pipes are connected with the blocking plate;
the inlet flange is connected with one end of the reinforcing pipe, the other end of the reinforcing pipe is also connected with the inlet connecting flange, and the inlet connecting flange is connected with the water ring pipe connecting flange through the fastening piece;
the number and the angle of the spraying pipes and the pipe holes are increased or decreased according to the flow of the raw gas, and the number of the cooling water inlet connecting pipe assemblies is increased or decreased according to the required cooling water flow;
the outer side of the lower semi-water ring pipe is provided with a cooling water overflow seam, an included angle is formed between the cooling water overflow seam and a horizontal shaft of the connecting pipe, the reinforcing pipe, the upper semi-water ring pipe and the lower semi-water ring pipe are in the same horizontal axis, and the spraying pipe is provided with a group of small holes;
a two-stage cooling and purifying structure of radial spraying and axial overflowing water film is adopted, so that high-efficiency cooling and purification are realized;
the method for cooling and purifying the coarse coal gas comprises the steps that a lower semi-water ring pipe is connected with a spray pipe, the spray pipe is uniformly distributed below the lower semi-water ring pipe, cooling water sprayed out of the spray pipe in the radial direction is fully mixed with the coarse coal gas coming from the upper portion of equipment to carry out primary cooling and purification, meanwhile, the coarse coal gas is cooled and ash and slag in the coarse coal gas are separated, the cooling water overflows from a cooling water overflow seam on the outer side of the lower semi-water ring pipe to form a uniform water film, and secondary cooling and purification are carried out on the diffused coarse coal gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711459758.1A CN108059981B (en) | 2017-12-28 | 2017-12-28 | Crude gas cooling and purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711459758.1A CN108059981B (en) | 2017-12-28 | 2017-12-28 | Crude gas cooling and purifying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108059981A CN108059981A (en) | 2018-05-22 |
| CN108059981B true CN108059981B (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711459758.1A Active CN108059981B (en) | 2017-12-28 | 2017-12-28 | Crude gas cooling and purifying device |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2563158Y (en) * | 2002-08-29 | 2003-07-30 | 华东理工大学 | Jet flow washing cooling water equal distributor |
| CN103232863B (en) * | 2013-03-01 | 2014-10-08 | 华东理工大学 | High-temperature gas washing and cooling device |
| CN103351890B (en) * | 2013-07-19 | 2015-04-22 | 华东理工大学 | Washing cooling tube with flaring structure |
| DE102013218831A1 (en) * | 2013-09-19 | 2015-03-19 | Siemens Aktiengesellschaft | Central tube with surface body of a combined quench and wash system for an entrainment gasification reactor |
| CN203530259U (en) * | 2013-09-25 | 2014-04-09 | 上海锅炉厂有限公司 | High-temperature coal gas guide tube of gasification furnace |
| CN106635182B (en) * | 2016-11-29 | 2023-03-21 | 东方电气集团东方锅炉股份有限公司 | Chilling ring of gasification furnace |
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| CN108059981A (en) | 2018-05-22 |
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