CN209957721U - Combined type coal gas purifier - Google Patents
Combined type coal gas purifier Download PDFInfo
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- CN209957721U CN209957721U CN201920512034.7U CN201920512034U CN209957721U CN 209957721 U CN209957721 U CN 209957721U CN 201920512034 U CN201920512034 U CN 201920512034U CN 209957721 U CN209957721 U CN 209957721U
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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
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Abstract
The utility model relates to the technical field of gas purification, in particular to a composite gas purification device, which comprises an outlet pipe, an inlet pipe, an outer cylinder and an inner cylinder, wherein the top end part of the outer cylinder is closed and the bottom end is provided with a sewage discharge device; the top end part of the inner cylinder body is provided with a rotating blade capable of rotating around the axis of the inner cylinder body and the bottom end part thereof is provided with an opening, and the inner cylinder body is sleeved in the outer cylinder body at intervals; the inlet pipe is communicated with the outer cylinder; compared with the prior art, the outlet pipe sequentially penetrates through the outer cylinder and the rotating blade to be inserted into the inner cylinder, dust removal and dehydration are completed in the same device, the dust collection efficiency reaches over 80 percent, the dehydration efficiency reaches over 90 percent, hardening, blocking and corrosion of pipelines and valves can be effectively avoided, the heat efficiency of the gas boiler is improved, energy waste is reduced, and the device is simple in structure, small in running resistance, light in weight, small in occupied space, flexible in device scale and convenient to install and maintain.
Description
Technical Field
The invention relates to the technical field of gas purification, in particular to a composite gas purification device.
Background
In the production process of coking, coal chemical industry and steel industry, a large amount of coke oven gas, blast furnace gas and other raw coke oven gas can be generated. A substantial portion of these by-products are fed to a gas boiler for combustion and the production of steam for supply to downstream users or for use in power generation.
The coal gas discharged from coke oven, blast furnace and coal gasifier is desulfurized and dedusted and then conveyed to the boiler for combustion through a pipeline. The coal gas still carries a small amount of dust and water after being desulfurized and dedusted, and a mixture formed by the dust and the water is condensed on the inner wall of the pipeline and the sealing rubber gaskets of various valves, so that the pipeline and the valves are hardened, blocked and corroded; in addition, after a large amount of water carried by the coal gas enters the boiler for heat absorption and evaporation, the latent heat of vaporization is not utilized, and the latent heat is discharged from the tail of the boiler to cause great energy waste.
At present, most of the gas purifiers arranged at the front ends of a gas pipeline and a boiler are simple, the dust removal and dehydration effects are not ideal, and the pipeline valve cannot be effectively protected; or a plurality of series-connected flows are designed for improving the dehydration efficiency, the equipment has large volume, large occupied area and large running resistance, and the actual requirements cannot be met.
Disclosure of Invention
The invention aims to provide a composite gas purification device with simple structure and small volume aiming at the defects in the prior art.
The purpose of the invention is realized by the following technical scheme: a combined type coal gas purification device comprises an outlet pipe, an inlet pipe, an outer cylinder and an inner cylinder, wherein the top end part of the outer cylinder is closed, and the bottom end of the outer cylinder is provided with a sewage discharge device; the top end part of the inner cylinder body is provided with a rotating blade capable of rotating around the axis of the inner cylinder body and the bottom end part thereof is provided with an opening, and the inner cylinder body is sleeved in the outer cylinder body at intervals; the inlet pipe is communicated with the outer cylinder; the outlet pipe penetrates through the outer cylinder and the rotating blades in sequence and is inserted into the inner cylinder.
Wherein, outer barrel and interior barrel coaxial setting.
Wherein, the inlet pipe is communicated with the top end part of the outer cylinder body along the horizontal tangential direction of the outer cylinder body.
Wherein the sewage draining device is a sewage draining valve.
Wherein, the bottom portion of interior barrel is provided with the access way, and the access way extends to the outside of outer barrel.
Wherein, the cross sectional area of outer barrel bottom reduces from top to bottom in proper order.
Wherein, the bottom of the outer cylinder body is in an inverted conical shape.
Wherein, the cross sectional area of the bottom of the inner cylinder body is reduced from top to bottom in sequence.
Wherein, the bottom of the inner cylinder body is in an inverted conical shape.
Wherein the flow velocity of the working medium of the inlet pipe is 20-30m/s, the flow velocity of the working medium of the rotating blade is 15-25m/s, and the flow velocity of the working medium of the outlet pipe is 15-25 m/s.
The invention has the beneficial effects that: the utility model provides a combined type gas purification device's working process, gas relies on self pressure to get into the urceolus from the inlet tube internal, under the centrifugal force effect, the great dust of density and water are thrown to the inner wall of outer barrel, and flow downwards along outer barrel wall face, thereby the less gas of density then concentrates on the central zone at outer barrel top, thereby reach the purpose of the gas of preliminary purification, then, the less gas of density gets into the inner barrel under the rotatory acceleration effect of rotating vane, utilize centrifugal force further to separate out dust and water, accomplish secondary purification gas, gas through secondary purification finally discharges purifier by the outlet pipe, compared with the prior art, accomplish dust removal and dehydration in same device, dust collection efficiency reaches more than 80%, dehydration efficiency reaches more than 90%, can effectively avoid pipeline and valve to harden, block up, corrode, the heat efficiency of the gas boiler is improved, the energy waste is reduced, and the device has the advantages of simple structure, small running resistance, light weight, small occupied area, flexible device scale and convenient installation and maintenance.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a schematic structural diagram of a composite gas purification device of the present invention.
Fig. 2 is a cross-sectional view taken at a-a in fig. 1.
Description of the drawings: the device comprises an inlet pipe 1, an outer cylinder 2, a rotating blade 3, an inner cylinder 4, an outlet pipe 5, a blow-down valve 7 and an overhaul channel 8.
Detailed Description
The invention is further described with reference to the following examples.
The specific embodiment of the composite gas purification device of the invention, as shown in fig. 1 and 2, comprises an outlet pipe 5, an inlet pipe 1, an outer cylinder 2 and an inner cylinder 4, wherein the top end part of the outer cylinder 2 is closed, and the bottom end of the outer cylinder is provided with a pollution discharge device; the top end part of the inner cylinder body 4 is provided with a rotating blade 3 which can rotate around the axis of the inner cylinder body 4, the bottom end part of the inner cylinder body is provided with an opening, and the inner cylinder body 4 is sleeved in the outer cylinder body 2 at intervals; the inlet pipe 1 is communicated with the outer cylinder 2; the outlet pipe 5 is inserted into the inside of the inner cylinder 4 through the outer cylinder 2 and the rotary vane 3 in sequence.
As the preferred scheme, combined type coal gas purifier is nested by outer barrel 2 and interior barrel 4 and forms, and outer barrel 2 and interior barrel 4 coaxial setting guarantee effectively that the interval between outer barrel 2 and the interior barrel 4 equals, guarantee the efficiency and the stability of dust removal, dewatering, further improve coal gas purifier's job stabilization nature.
In this embodiment, referring to fig. 2, the inlet pipe 1 is communicated with the top end of the outer cylinder 2 along the horizontal tangential direction of the outer cylinder 2, so that the gas can enter the outer cylinder 2 to form a vortex by using the pressure of the gas as much as possible, thereby further improving the gas purification efficiency.
In this embodiment, the drainage device is a drainage valve 7, and in practical applications, a gas condensation drainage device is generally installed behind the drainage valve 7 to prevent gas leakage during drainage.
In this embodiment, the bottom end portion of interior barrel 4 is provided with access way 8, and access way 8 extends to the outside of outer barrel 2 to inside clearance, the maintenance of purifier when shutting down to overhaul.
In order to further improve the recovery and cleaning efficiency of pollutants, the cross-sectional area of the bottom of the outer cylinder 2 is sequentially reduced from top to bottom, and preferably, the bottom of the outer cylinder 2 is in an inverted conical shape; the cross section area of the bottom of the inner cylinder body 4 is reduced from top to bottom in sequence, and preferably, the bottom of the inner cylinder body 4 is in an inverted conical shape.
The working process of the combined type gas purification device of the embodiment is that gas enters the outer cylinder 2 from the inlet pipe 1 by virtue of self pressure, under the action of centrifugal force, dust and water with high density are thrown to the inner wall of the outer cylinder 2 and flow downwards along the wall surface of the outer cylinder 2, so that gas with low density is concentrated in the central area at the top end of the outer cylinder 2, thereby achieving the purpose of primarily purifying the gas, then the gas with low density enters the inner cylinder 4 under the action of rotating speed acceleration of the rotating blades 3, the dust and the water are further separated by utilizing the centrifugal force, secondary purification of the gas is completed, and the gas after secondary purification is finally discharged out of the purification device through the outlet pipe 5 The device has the advantages of simple structure, small running resistance, light weight, small occupied area, flexible device scale and convenient installation and maintenance.
It should be noted that the working medium flow velocity of the inlet (inlet pipe 1) of the outer cylinder 2 is 20-30m/s, the working medium flow velocity of the inlet (rotating blade 3) of the inner cylinder 4 is 15-25m/s, and the working medium flow velocity of the outlet pipe 5 is 15-25 m/s; the number, length and angle of the cyclone blades are determined according to the dust content and water content of inlet gas, and the principle is to reduce the running resistance (pressure loss of the pipeline) as much as possible on the premise of ensuring that the dust removal efficiency and the dehydration efficiency are not reduced. The total length of the outer cylinder 2 is 4-20m, the total length of the inner cylinder 4 is 2-18m, the length of the cylinder determines the stroke and time of gas rotary separation, the longer the stroke and time, the better the dust removal and dehydration effects, but the higher the cost.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A combined type gas purification device is characterized in that: comprises an outlet pipe, an inlet pipe, an outer cylinder and an inner cylinder, wherein the top end part of the outer cylinder is closed, and the bottom end of the outer cylinder is provided with a sewage discharge device; the top end part of the inner cylinder body is provided with a rotating blade capable of rotating around the axis of the inner cylinder body and the bottom end part of the inner cylinder body is provided with an opening; the inlet pipe is communicated with the outer cylinder; the outlet pipe penetrates through the outer cylinder and the rotating blades in sequence and is inserted into the inner cylinder.
2. The composite gas purification device as claimed in claim 1, wherein: the outer cylinder and the inner cylinder are coaxially arranged.
3. The composite gas purification device as claimed in claim 1, wherein: the inlet pipe is communicated with the top end part of the outer cylinder body along the horizontal tangential direction of the outer cylinder body.
4. The composite gas purification device as claimed in claim 1, wherein: the sewage discharge device is a sewage discharge valve.
5. The composite gas purification device as claimed in claim 1, wherein: the bottom end of the inner cylinder body is provided with an overhaul channel, and the overhaul channel extends to the outside of the outer cylinder body.
6. The composite gas purification device as claimed in claim 1, wherein: the cross sectional area of outer barrel bottom reduces from top to bottom in proper order.
7. The composite gas purification device as claimed in claim 6, wherein: the bottom of the outer cylinder body is in an inverted conical shape.
8. The composite gas purification device as claimed in claim 1, wherein: the cross sectional area of the bottom of the inner cylinder body is reduced from top to bottom in sequence.
9. The composite gas purification device as claimed in claim 6, wherein: the bottom of the inner cylinder body is in an inverted conical shape.
10. The composite gas purification device as claimed in claim 6, wherein: the flow velocity of the working medium of the inlet pipe is 20-30m/s, the flow velocity of the working medium of the rotating blade is 15-25m/s, and the flow velocity of the working medium of the outlet pipe is 15-25 m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920512034.7U CN209957721U (en) | 2019-04-15 | 2019-04-15 | Combined type coal gas purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920512034.7U CN209957721U (en) | 2019-04-15 | 2019-04-15 | Combined type coal gas purifier |
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| Publication Number | Publication Date |
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| CN209957721U true CN209957721U (en) | 2020-01-17 |
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| CN201920512034.7U Active CN209957721U (en) | 2019-04-15 | 2019-04-15 | Combined type coal gas purifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109988655A (en) * | 2019-04-15 | 2019-07-09 | 广东东实开能能源有限公司 | A kind of combined type gas cleaning device |
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2019
- 2019-04-15 CN CN201920512034.7U patent/CN209957721U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109988655A (en) * | 2019-04-15 | 2019-07-09 | 广东东实开能能源有限公司 | A kind of combined type gas cleaning device |
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