CN113750725B - High-temperature gas washing and purifying equipment - Google Patents

High-temperature gas washing and purifying equipment Download PDF

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Publication number
CN113750725B
CN113750725B CN202111176110.XA CN202111176110A CN113750725B CN 113750725 B CN113750725 B CN 113750725B CN 202111176110 A CN202111176110 A CN 202111176110A CN 113750725 B CN113750725 B CN 113750725B
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section
washing
deep
defogging
demisting
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CN113750725A (en
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王武生
黄勇
张晓欠
靳皎
党昱
孔少亮
刘彪
白罡
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Shaanxi Yanchang Petroleum Group Co Ltd
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Shaanxi Yanchang Petroleum Group Co Ltd
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Abstract

The invention discloses high-temperature gas washing and purifying equipment which comprises a primary washing cavity, a deep washing cavity and a demisting cavity, wherein the primary washing cavity is provided with a first washing chamber and a second washing chamber; the primary washing cavity comprises a primary washing section cylinder, the deep washing cavity comprises a deep washing section cylinder and a deep washing section short joint, the demisting cavity comprises a demisting section cylinder, the demisting section cylinder is fixed on the deep washing section short joint and fixes the demisting cavity in the deep washing cavity, and the demisting section liquid return pipe penetrates through the deep washing section washing pipe and extends into the primary washing section cylinder; the whole structure is simple, and three functions of high-temperature gas washing, heat transfer and demisting and purifying can be integrated; the self-powered circulation that high temperature gas can wash simultaneously in single equipment, move heat, defogging and solvent has been realized, dust and soluble component in can high-efficient washing, absorption high temperature gas to improved the precision that low reaches purified gas measured when having reduced washing solvent filling amount and solvent loss volume by a wide margin, and then made the measurement of soluble component content and dust content more accurate in the high temperature gas.

Description

High-temperature gas washing and purifying equipment
Technical Field
The invention relates to the technical field of gas purification, in particular to high-temperature gas washing and purifying equipment.
Background
Compared with the traditional fixed bed lump coal pyrolysis technology, one of the obvious advantages of the pulverized coal fast pyrolysis technology is that the yield of coal tar products can be improved by about one time. The products at the outlet of the reactor in the process of the fast pyrolysis of the pulverized coal mainly comprise high-temperature oil gas, non-condensable gas and semi-coke powder. Usually, most of the semi-coke powder is removed by adopting dust removing equipment such as a cyclone separator or a high-temperature resistant filter element, and the content and the component analysis of components such as condensable oil gas, residual semi-coke powder and the like in high-temperature gas at the outlet of the dust removing equipment have important guiding significance for optimizing process operating conditions of a pulverized coal pyrolysis test device, designing an oil product processing scheme and evaluating the efficiency of the dust removing equipment.
Currently, the most common method for achieving the purpose is to collect coal tar and residual semi-coke powder in high-temperature non-condensable gas by a solvent absorption method, then obtain coke powder and tar samples by liquid-solid separation and liquid-liquid separation and measure the coke powder and the tar samples, and finally calculate the content of the coal tar and the residual semi-coke powder in the high-temperature gas phase by combining with the measurement of the amount of purified tail gas. Patent CN207147914U discloses a device for collecting liquid-solid samples from raw gas, the main disadvantages of which are: the number of devices is large, the solvent consumption is large, and the solvent in the device can not circulate in a closed loop, so that the running time of the device is limited.
Therefore, when qualitative and quantitative analysis of soluble substances in high-temperature non-condensable gas is required, it is urgently needed to develop a gas purification device which has low solvent consumption and can realize closed-loop self-powered circulation of solvent, and can simultaneously realize washing, heat transfer and demisting purification of high-temperature gas phase in the device.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide high-temperature gas washing and purifying equipment capable of efficiently washing and absorbing dust and soluble components in high-temperature gas phase.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-temperature gas washing and purifying device comprises a primary washing cavity, a deep washing cavity and a demisting cavity;
the primary washing cavity comprises a primary washing section cylinder, the upper end of the primary washing section cylinder is in seamless connection with the deep washing cavity, a primary washing section end socket is connected to the lower end of the primary washing section cylinder to seal the primary washing section cylinder, a primary washing section liquid discharge pipe orifice is arranged at the lower part of the primary washing section end socket, and a primary washing section air inlet pipe orifice is arranged at one side of the primary washing section cylinder;
the deep washing cavity comprises a deep washing section cylinder and a deep washing section short section, the deep washing section short section is connected to the top of the deep washing section cylinder through a flange, the upper end of the deep washing section short section is sealed through an upper flange at the top of the deep washing section, and an exhaust pipe opening of the deep washing section is connected to the upper flange at the top of the deep washing section in a penetrating manner; the deep washing section end enclosure is connected with the bottom of the deep washing section cylinder to seal the bottom of the deep washing section cylinder, one side of the deep washing section cylinder is connected with a deep washing section liquid feeding pipe orifice in a penetrating manner, and a deep washing section washing pipe is connected on the deep washing section end enclosure in a penetrating manner and extends into the lower primary washing section cylinder; the deep washing section liquid return pipe is connected to the deep washing section end enclosure in a through mode, the top end of the deep washing section liquid return pipe extends into the deep washing section cylinder, and the bottom end of the deep washing section liquid return pipe extends into the lower primary washing section cylinder;
the demisting cavity comprises a demisting section barrel, the demisting section barrel is fixed on the deep washing section short section through a suspension mechanism, the demisting cavity is fixedly suspended in the deep washing cavity, a demisting section cone is connected to the lower end of the demisting section barrel, and a demisting section liquid return pipe is connected to the lower end of the demisting section cone in a penetrating manner and penetrates through the deep washing section washing pipe to extend into the primary washing section barrel;
demisting section filter element group spare is installed in demisting section barrel, is provided with the independent air intake space with the outside intercommunication of barrel at demisting section barrel, and this air intake space is isolated with demisting section barrel inner space, and demisting section filter element group spare upper portion is provided with demisting section filter core inlet port, demisting section filter core inlet port and air intake space intercommunication.
Further, the primary washing section jacket is sleeved on the outer side of the primary washing section cylinder, a radial gap is reserved between the primary washing section jacket and the primary washing section cylinder, the edges of the two ends of the primary washing section jacket are in seamless connection with the primary washing section cylinder, and a primary washing section jacket liquid outlet pipe orifice and a primary washing section jacket liquid inlet pipe orifice are respectively in through connection with the high side and the low side of the primary washing section jacket;
the deep-washing section jacket is sleeved on the outer side of the deep-washing section cylinder, a radial gap is reserved between the deep-washing section jacket and the deep-washing section cylinder, the edges of two ends of the deep-washing section jacket are in seamless connection with the deep-washing section cylinder, and a deep-washing section jacket liquid outlet pipe orifice and a deep-washing section jacket liquid inlet pipe orifice are respectively in through connection with the high side and the low side of the deep-washing section jacket.
Furthermore, be provided with deep washing section cooling coil in the deep washing section barrel, deep washing section cooling coil's both ends are all passed deep washing section barrel top flange and are fixed.
Furthermore, the breach has been seted up at defogging section barrel lateral wall, fixed horizontal defogging section upside backup pad and the defogging section downside backup pad that sets up are do not connected along punishment about the breach to inside being located of defogging section barrel, and defogging section upside backup pad and defogging section downside backup pad edge link together through defogging section baffle again in the inside independent air intake space that forms of defogging section upside barrel.
Furthermore, the demisting section cylinder comprises a demisting section lower side cylinder and a demisting section upper side cylinder which are connected through a demisting section cylinder connecting piece;
defogging section filter element group spare is arranged in defogging section downside barrel and defogging section upside barrel, and defogging section filter element group spare is connected with defogging section downside backup pad, and defogging section filter element group spare top is fixed with defogging section upside backup pad through defogging section filter element screw rod mounting.
Furthermore, defogging section upside barrel upper end is connected with defogging section top backup pad, and defogging section top backup pad both sides are placed respectively and are fixed in on the deep washing section barrel top flange after defogging section top downside gasket and defogging section top upside gasket, will remove the fixed suspension in the degree of depth washing chamber in fog chamber.
Furthermore, it is provided with defogging section middle part gasket, defogging section upper portion gasket respectively to link up sealed punishment at defogging section filter element group spare and defogging section downside backup pad, defogging section upside backup pad.
Furthermore, defogging section cone both ends return the liquid pipe and defogging section downside barrel seamless connection with defogging section respectively, defogging section top backup pad and the top seamless connection of defogging section upside barrel.
Further, the initial washing section cylinder body consists of an upper cylinder body and a lower cylinder body, and the upper cylinder body and the lower cylinder body are connected together through the initial washing section connecting pieces which are respectively sleeved.
Further, the initial wash section connecting piece, defogging section barrel connecting piece, initial wash section flowing back mouth of pipe, initial wash section press from both sides the cover and go out the liquid mouth of pipe, initial wash section press from both sides the cover feed liquor mouth of pipe, initial wash section admission orifice, the section of pressing from both sides the cover and go out the liquid mouth of pipe, wash section coil pipe liquid mouth of pipe deeply, wash section exhaust mouth of pipe, wash section coil pipe feed liquor mouth of pipe deeply, wash section clamp cover feed liquor mouth of pipe deeply, wash section liquid feeding mouth of pipe deeply and all adopt flange joint structure or threaded connection structure.
Compared with the prior art, the invention has the following beneficial effects:
the device comprises a primary washing cavity, a deep washing cavity and a demisting cavity, wherein the top of the primary washing cavity is seamlessly connected with the deep washing cavity, and the demisting cavity is arranged in the deep washing cavity, so that the device has a simple integral structure and can integrate three functions of high-temperature gas washing, heat transfer and demisting purification; through ingenious runner design, realized that high-temperature gas can wash simultaneously in single equipment, move heat, defogging and solvent's spontaneous circulation, can high-efficient washing, absorb dust and soluble component in the high-temperature gas phase to reduce the filling amount of washing solvent and the loss volume of solvent by a wide margin, and then made tar yield measurement and low reaches and purified the gas measurement more accurate.
The flange connecting structure and the threaded connecting structure at parts related in the invention are favorable for the disassembly and maintenance of equipment and the replacement of spare parts. The technical problems of large equipment quantity, large solvent consumption and easy solvent loss in the washing and purifying process of the high-temperature dust-containing and oil-containing gas are effectively solved, so that the washing and absorption, heat transfer and cooling, demisting and solvent self-circulation of the gas are realized in the same equipment, and all parts of the equipment are easy to disassemble, overhaul and replace.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view showing the construction of a primary washing chamber in the overall construction of the present invention;
FIG. 3 is a schematic diagram of a deep wash chamber in the overall configuration of the present invention;
FIG. 4 is a schematic view of a defogging chamber in an overall configuration of the present invention;
wherein: 100. a primary washing chamber; 200. a deep washing chamber; 300. a defogging cavity; 101. a liquid discharge pipe orifice of the primary washing section; 102. a barrel body at the initial washing section; 103. a jacket at the initial washing section; 104. a jacket liquid outlet pipe orifice of the initial washing section; 105. a primary washing section connecting piece; 106. a liquid inlet pipe orifice of the jacket at the initial washing section; 107. an air inlet pipe orifice of the primary washing section; 108. primarily washing section end sockets; 201. a deep washing section washing pipe; 202. deeply washing a section end socket; 203. a deep washing section cylinder body; 204. a deep washing section jacket; 205. a liquid outlet pipe opening of the jacket of the deep washing section; 206. deep washing the middle lower flange of the section; 207. a flange is arranged in the middle of the deep washing section; 208. a liquid outlet pipe orifice of the coil pipe at the deep washing section; 209. deeply washing a short section; 210. deep washing the lower flange at the top of the section; 211. a flange is arranged on the top of the deep washing section; 212. an exhaust pipe orifice of the deep washing section; 213. a liquid inlet pipe orifice of the coil pipe at the deep washing section; 214. a liquid inlet pipe orifice of the deep washing section jacket; 215. a liquid adding pipe orifice of the deep washing section; 216. a deep washing section cooling coil; 217. a liquid return pipe at the deep washing section; 301. a demisting section liquid return pipe; 302. a barrel at the lower side of the demisting section; 303. a demisting section cylinder connecting piece; 304. a demisting section filter element assembly; 305. a barrel on the upper side of the demisting section; 306. a lower side support plate of the demisting section; 307. a side supporting plate is arranged on the demisting section; 308. a gasket at the lower side of the top of the demisting section; 309. a gasket on the upper side of the top of the demisting section; 310. a demisting section filter element screw fixing piece; 311. a demisting section upper gasket; 312. a demisting section top support plate; 313. a demisting section partition plate; 314. a middle gasket of the demisting section; 315. an air inlet of a demisting section filter element; 316. defogging section cone.
Detailed Description
The present invention will be explained in further detail with reference to examples.
As shown in FIG. 1, the high temperature gas scrubbing and cleaning apparatus of the present invention includes a primary scrubbing chamber 100, a deep scrubbing chamber 200, and a demisting chamber 300.
As shown in fig. 2, the top of the primary washing chamber 100 is seamlessly connected to the deep washing chamber 200, and the primary washing chamber 100 includes a primary washing section liquid discharge pipe orifice 101, a primary washing section cylinder 102, a primary washing section air inlet pipe orifice 107, and a primary washing section sealing head 108. The upper end of the primary washing section cylinder body 102 is connected with the deep washing cavity 200 in a seamless mode, the primary washing section end enclosure 108 is connected with the lower end of the primary washing section cylinder body 102, the primary washing section liquid discharge pipe opening 101 is communicated with the primary washing section end enclosure 108, and the primary washing section air inlet pipe opening 107 is connected to one side of the primary washing section cylinder body 102.
The initial washing section jacket 103 is sleeved outside the initial washing section cylinder 102, a radial gap is reserved between the initial washing section jacket 103 and the initial washing section cylinder 102, the edges of two ends of the initial washing section jacket 103 are in seamless connection with the initial washing section cylinder 102, and an initial washing section jacket liquid outlet pipe opening 104 and an initial washing section jacket liquid inlet pipe opening 106 are respectively connected in a penetrating manner on the high side and the low side of the initial washing section jacket 103.
The initial washing section cylinder 102 is composed of an upper cylinder body and a lower cylinder body, the upper cylinder body and the lower cylinder body are connected together through the initial washing section connecting piece 105 which is respectively sleeved, the initial washing section cylinder body 102 is provided with the initial washing section connecting piece 105 so as to be convenient to disassemble, and the arrangement of the detachable connecting structure is convenient for cleaning the primary washing cavity 100.
As shown in fig. 3, the deep washing chamber 200 includes a deep washing section washing pipe 201, a deep washing section end enclosure 202, a deep washing section cylinder 203, a deep washing section jacket 204, a deep washing section middle lower flange 206, a deep washing section middle upper flange 207, a deep washing section short section 209, a deep washing section top lower flange 210, a deep washing section top upper flange 211, a deep washing section exhaust pipe opening 212, a deep washing section liquid adding pipe opening 215, a deep washing section cooling coil 216, and a deep washing section liquid returning pipe 217.
The upper end of the deep washing section short section 209 is connected with a deep washing section top lower flange 210, a deep washing section top upper flange 211 is connected with the deep washing section top lower flange 210 to seal the upper end of the deep washing section short section 209, a deep washing section exhaust pipe port 212 is connected on the deep washing section top upper flange 211 in a penetrating manner, and the deep washing section exhaust pipe port 212 is installed above the deep washing section short section 209 through flange connection; deep washing section short section 209 lower extreme and deep washing section middle part are gone up flange 207 and are connected, and deep washing section barrel 203 upper end is connected with deep washing section middle part lower flange 206, and deep washing section short section 209 passes through flange joint at deep washing section barrel 203 top, and deep washing section head 202 is connected with deep washing section barrel 203 bottom and is sealed deep washing section barrel 203 bottom, and deep washing section washing pipe 201 through connection is on deep washing section head 202 and stretch into below in the section barrel 102 of just washing.
The deep washing section jacket 204 is sleeved outside the deep washing section cylinder 203, a radial gap is reserved between the deep washing section jacket 204 and the deep washing section cylinder 203, edges of two ends of the deep washing section jacket 204 are in seamless connection with the deep washing section cylinder 203, and a deep washing section jacket liquid outlet pipe opening 205 and a deep washing section jacket liquid inlet pipe opening 214 are respectively connected in a penetrating manner on the high side and the low side of the deep washing section jacket 204. The deep washing section liquid adding pipe mouth 215 is connected with one side of the deep washing section cylinder 203 in a penetrating way.
Deep-washing section cooling coil 216 is arranged in deep-washing section cylinder 203, and both ends of deep-washing section cooling coil 216 are communicated with deep-washing section middle upper flange 207, and are respectively connected with deep-washing section coil liquid outlet pipe mouth 208 and deep-washing section coil liquid inlet pipe mouth 213 in a seamless manner. The arrangement of the jacket, the coil pipe and the matched pipe orifice is mainly used for increasing the heat exchange heat transfer area of cold and hot media and facilitating the introduction of cold water or glycol solution and other refrigeration media, thereby achieving the purpose of cooling and heat transfer of the media in the equipment and further realizing the condensation recovery of the solvent.
The deep washing section liquid return pipe 217 is connected to the deep washing section end enclosure 202 in a penetrating manner, the top end of the deep washing section liquid return pipe 217 extends into the deep washing section cylinder 203, and the bottom end of the deep washing section liquid return pipe 217 extends into the lower primary washing section cylinder 102. The deep-washing section washing pipe 201 and the deep-washing section liquid return pipe 217 are connected with the deep-washing section end enclosure 202 in a seamless mode.
As shown in fig. 4, the defogging chamber 300 is located in the deep washing chamber 200, and the defogging chamber 300 includes a defogging section liquid return pipe 301, a defogging section lower side cylinder 302, a defogging section cylinder connector 303, a defogging section filter element assembly 304, a defogging section upper side cylinder 305, a defogging section lower side support plate 306, a defogging section upper side support plate 307, a defogging section top support plate 312, a defogging section partition 313 and a defogging section cone 316.
Defogging section downside barrel 302 and defogging section upside barrel 305 link to each other through defogging section barrel connecting piece 303, and defogging section cone 316 is connected and is linked together at defogging section downside barrel 302 lower extreme and defogging section downside barrel 302, and defogging section liquid return pipe 301 through-connection is returned in defogging section cone 316 lower extreme and is passed deep washing section washing pipe 201 and stretch into in the primary washing section barrel 102.
Defogging section upside barrel 305 upper end is connected defogging section top backup pad 312, and defogging section top backup pad 312 both sides are placed defogging section top downside gasket 308 and defogging section top upside gasket 309 respectively and are placed in and are bathed deeply between section top lower flange 210 and the section top upper flange 211 of washing deeply, and through bathe section top lower flange 210 and bathe section top upper flange 211 with defogging chamber 300 is fixed to be hung in deep washing chamber 200.
The deep washing chamber 200 and the demisting chamber 300 are detachably connected through a lower gasket 308 at the top of the demisting section, and the upper gasket 309 at the top of the demisting section can be selectively arranged according to actual conditions. Facilitating the maintenance of the defogging chamber 300 and the replacement of the filter element in the chamber.
The breach is seted up to defogging section upside barrel 305 lateral wall, and fixed horizontal defogging section upside backup pad 307 and the defogging section downside backup pad 306 that sets up are connected respectively along punishment about the breach to defogging section upside barrel 305 inside being located in the breach, and defogging section upside backup pad 307 and defogging section downside backup pad 306 edge link together through defogging section baffle 313 again in the inside independent air inlet space that forms of defogging section upside barrel 305, and the air inlet space is isolated between the defogging section upside barrel 305 inner space and is sealed. Defogging section filter element group spare 304 is arranged in defogging section downside barrel 302 and defogging section upside barrel 305, and defogging section filter element group spare 304 is connected with defogging section downside backup pad 306, and defogging section filter element group spare 304 top is fixed with defogging section upside backup pad 307 through defogging section filter core screw rod mounting 310, and defogging section filter element group spare 304 upper portion is provided with defogging section filter core inlet 315, defogging section filter core inlet 315 and air inlet space intercommunication.
And a demisting section middle gasket 314 and a demisting section upper gasket 311 are respectively arranged at the joint sealing position of the demisting section filter element component 304, the demisting section lower side support plate 306 and the demisting section upper side support plate 307. The setting of this structure had both guaranteed that it carries droplet gas to carry out gas-liquid separation through filtering according to the design runner, had ensured again that it is convenient for the whole dismantlement of filter to change.
Defogging section cone 316 both ends return the liquid pipe 301 and defogging section downside barrel 302 seamless connection with defogging section respectively, defogging section top backup pad 312 and defogging section upside barrel 305's top seamless connection. The arrangement of the structure strongly ensures that the gas-phase fluid can flow through according to the channel indicated by the arrow in the figure, thereby realizing purification.
As shown in FIG. 1, the value d1 of the inner diameter of the deep-washing section washing pipe 201 is greater than the value d2 of the outer diameter of the demisting section liquid return pipe 301, and the difference between the two values is in the range of 5-950 mm, and the value of the inner diameter d1 of the deep-washing section washing pipe 201 is in the range of 10-1000 mm. This limited setting has ensured that defogging section liquid return pipe can insert deep washing section washing pipe and two radial reservation annulars to the process medium circulates according to the runner of design.
First wash section connecting piece 105, defogging section barrel connecting piece 303, first wash section flowing back mouth of pipe 101, first wash section presss from both sides cover liquid outlet mouth of pipe 104, first wash section presss from both sides cover feed liquor mouth of pipe 106, first wash section air inlet mouth of pipe 107, deep wash section presss from both sides cover liquid outlet mouth of pipe 205, deep wash section coil pipe liquid outlet mouth of pipe 208, deep wash section exhaust mouth of pipe 212, deep wash section coil pipe feed liquor mouth of pipe 213, deep wash section press from both sides cover feed liquor mouth of pipe 214, deep wash section liquid inlet mouth of pipe 215 all can choose flange joint structure or threaded connection structure for use according to actual conditions. Due to the arrangement of the structure, the related parts can be disassembled more conveniently and rapidly.
The height difference h1 between the bottom end of the liquid return pipe 217 of the deep washing section and the lowest point of the end enclosure 108 of the primary washing section is within the range of 20-500 mm, the height difference h2 between the bottom end of the liquid return pipe 217 of the deep washing section and the lower edge of the corresponding pipeline of the air inlet pipe opening 107 of the primary washing section is within the range of 30-500 mm, and the value of h2 is greater than the value of h 1. This limited setting has ensured that the section head that washes just has certain solid deposition space, has effectively restrained the risk that the section of washing back the liquid pipe deeply is blockked up by bottom entrapment silt to and the risk of gas from returning the intraductal short circuit of liquid.
The bottom end of the deep-washing section washing pipe 201 is higher than the upper edge of the pipeline corresponding to the air inlet pipe opening 107 of the initial-washing section, the height difference h3 between the deep-washing section washing pipe 201 and the upper edge of the pipeline is within the range of 30-500 mm, and the height difference h4 between the bottom end of the deep-washing section washing pipe 201 and the lowest point of the sealing head 108 of the initial-washing section is within the range of 80-1000 mm. The limited arrangement ensures that the air inlet pipe orifice of the initial washing section is below the liquid level of the solvent.
The height difference h5 between the top end of the deep-washing section liquid return pipe 217 and the lowest point of the deep-washing section end socket 202 is within the range of 20-200 mm, the height difference h6 between the lower edge of the pipeline corresponding to the deep-washing section liquid adding pipe opening 215 and the lowest point of the deep-washing section end socket 202 is within the range of 30-500 mm, the lower end of the defogging section cone 316 is in seamless connection with the upper end of the defogging section liquid return pipe 301, the height difference h7 between the connection position and the lowest point of the deep-washing section end socket 202 is within the range of 20-500 mm, and the value of h5 is smaller than the value of h6 and the value of h 7. The limited arrangement ensures that a certain liquid level is arranged at the bottom of the seal head of the deep washing section, thereby realizing the deep washing of gas.
After the primary washing chamber 100, the deep washing chamber 200 and the defogging chamber 300 are assembled, they are vertically installed and used according to the principle that the primary washing chamber 100 is at the lowest side. The limited arrangement avoids gas purification failure caused by the inverted or horizontal installation of the equipment.
The working process is as follows:
high-temperature gas is introduced into the primary washing cavity 100 through the gas inlet pipe port 107 of the primary washing section, and flows through a sleeve annular gap formed by the deep washing section washing pipe 201 and the demisting section liquid return pipe 301 after the lower end of the primary washing cavity 100 is in bubbling contact with a detergent for heat and mass transfer, so that deep washing and temperature reduction are realized. The scrubbed gas then flows through the outer wall of the deep scrubbing section cooling coil 216 in the deep scrubbing chamber 200 and the demisting section filter element assembly 304 in the demisting chamber 300, and finally flows out of the scrubbing and cleaning apparatus through the deep scrubbing section exhaust port 212. In the process, high-temperature gas vaporizes part of the detergent in the primary washing cavity 100, then the part of the detergent is liquefied when meeting cold in the deep washing cavity 200, fog drops collected by the demisting section filter element assembly 304 return to the primary washing cavity 100 for recycling through the demisting section liquid return pipe 301 under the action of gravity, and the deep washing section liquid return pipe 217 is arranged, so that the detergent brought to the deep washing cavity 200 by the gas returns to the primary washing cavity 100 for recycling under the action of gravity. The arrangement of the primary washing section jacket 103, the deep washing section jacket 204 and the deep washing section cooling coil 216 provides an effective heat transfer area for cooling the process medium in the equipment.

Claims (8)

1. The utility model provides a high temperature gas washing clarification plant which characterized in that: comprises a primary washing chamber (100), a deep washing chamber (200) and a demisting chamber (300);
the primary washing cavity (100) comprises a primary washing section cylinder (102), the upper end of the primary washing section cylinder (102) is connected with the deep washing cavity (200) in a seamless mode, a primary washing section end enclosure (108) is connected to the lower end of the primary washing section cylinder (102) to seal the primary washing section cylinder, a primary washing section liquid discharging pipe opening (101) is arranged at the lower portion of the primary washing section end enclosure (108), and a primary washing section air inlet pipe opening (107) is arranged on one side of the primary washing section cylinder (102);
the deep washing cavity (200) comprises a deep washing section cylinder (203) and a deep washing section short section (209), the deep washing section short section (209) is connected to the top of the deep washing section cylinder (203) through a flange, the upper end of the deep washing section short section (209) is sealed through an upper flange (211) at the top of the deep washing section, and an exhaust pipe port (212) of the deep washing section is connected to the upper flange (211) at the top of the deep washing section in a penetrating manner; the deep-washing section end enclosure (202) is connected with the bottom of the deep-washing section cylinder body (203) to seal the bottom of the deep-washing section cylinder body, one side of the deep-washing section cylinder body (203) is connected with a deep-washing section liquid feeding pipe opening (215) in a penetrating manner, and the deep-washing section washing pipe (201) is connected to the deep-washing section end enclosure (202) in a penetrating manner and extends into the lower primary-washing section cylinder body (102); the deep washing section liquid returning pipe (217) is connected to the deep washing section end enclosure (202) in a penetrating manner, the top end of the deep washing section liquid returning pipe (217) extends into the deep washing section cylinder (203), and the bottom end of the deep washing section liquid returning pipe extends into the lower primary washing section cylinder (102);
the demisting cavity (300) comprises a demisting section cylinder body, the demisting section cylinder body is fixed on a deep washing section short joint (209) through a suspension mechanism to fixedly suspend the demisting cavity (300) in the deep washing cavity (200), a demisting section cone (316) is connected to the lower end of the demisting section cylinder body, and a demisting section liquid return pipe (301) is connected to the lower end of the demisting section cone (316) in a penetrating manner and penetrates through a deep washing section washing pipe (201) to extend into the primary washing section cylinder body (102);
the demisting section filter element assembly (304) is arranged in the demisting section cylinder, an independent air inlet space communicated with the outside of the cylinder is arranged in the demisting section cylinder, the air inlet space is isolated from the inner space of the demisting section cylinder, a demisting section filter element air inlet (315) is arranged at the upper part of the demisting section filter element assembly (304), and the demisting section filter element air inlet (315) is communicated with the air inlet space;
a primary washing section jacket (103) is sleeved on the outer side of the primary washing section cylinder (102), a radial gap is reserved between the primary washing section jacket and the primary washing section cylinder, the edges of two ends of the primary washing section jacket (103) are in seamless connection with the primary washing section cylinder (102), and a primary washing section jacket liquid outlet pipe orifice (104) and a primary washing section jacket liquid inlet pipe orifice (106) are respectively connected on the high side and the low side of the primary washing section jacket (103) in a penetrating manner;
the deep-washing section jacket (204) is sleeved on the outer side of the deep-washing section cylinder (203), a radial gap is reserved between the deep-washing section jacket and the deep-washing section cylinder (203), the edges of two ends of the deep-washing section jacket (204) are in seamless connection with the deep-washing section cylinder (203), and a deep-washing section jacket liquid outlet pipe orifice (205) and a deep-washing section jacket liquid inlet pipe orifice (214) are respectively connected on the high side and the low side of the deep-washing section jacket (204) in a penetrating manner;
and a deep washing section cooling coil (216) is arranged in the deep washing section cylinder (203), and two ends of the deep washing section cooling coil (216) penetrate through the top flange of the deep washing section cylinder (203) to be fixed.
2. A high temperature gas scrubbing apparatus as recited in claim 1, wherein: the breach has been seted up at defogging section barrel lateral wall, fixed horizontal defogging section upside backup pad (307) and the defogging section downside backup pad (306) that set up are connected respectively to border punishment about the breach inside defogging section barrel that is located of defogging section barrel, and defogging section upside backup pad (307) link together in defogging section upside barrel (305) inside independent air inlet space of formation with defogging section downside backup pad (306) edge rethread defogging section baffle (313).
3. A high temperature gas scrubbing apparatus as recited in claim 2, wherein: the demisting section cylinder comprises a demisting section lower side cylinder (302) and a demisting section upper side cylinder (305) which are connected through a demisting section cylinder connecting piece (303);
defogging section filter element group spare (304) are arranged in defogging section downside barrel (302) and defogging section upside barrel (305), and defogging section filter element group spare (304) are connected with defogging section downside backup pad (306), and defogging section filter element group spare (304) top is fixed with defogging section upside backup pad (307) through defogging section filter core screw rod mounting (310).
4. A high temperature gas scrubbing apparatus as recited in claim 3, wherein: defogging section upside barrel (305) upper end is connected with defogging section top backup pad (312), and defogging section top backup pad (312) both sides are placed defogging section top downside gasket (308) and defogging section top upside gasket (309) respectively and are fixed in on deep washing section barrel (203) top flange, with defogging chamber (300) fixed suspension in degree of depth washing chamber (200).
5. The high temperature gas scrubbing apparatus of claim 3, wherein: and a demisting section middle gasket (314) and a demisting section upper gasket (311) are respectively arranged at the joint sealing position of the demisting section filter element assembly (304) and the demisting section lower side support plate (306) and the demisting section upper side support plate (307).
6. The high temperature gas scrubbing apparatus of claim 4, wherein: defogging section cone (316) both ends respectively with defogging section liquid return pipe (301) and defogging section downside barrel (302) seamless connection, defogging section top backup pad (312) and the top seamless connection of defogging section upside barrel (305).
7. A high temperature gas scrubbing apparatus as recited in claim 3, wherein: the initial washing section cylinder (102) is composed of an upper cylinder and a lower cylinder, and the upper cylinder and the lower cylinder are connected together through initial washing section connecting pieces (105) which are respectively sleeved.
8. A high temperature gas scrubbing apparatus as recited in claim 3, wherein: first wash section connecting piece (105), defogging section barrel connecting piece (303), first wash section flowing back mouth of pipe (101), first wash section press from both sides cover and go out liquid mouth of pipe (104), first wash section press from both sides cover feed liquor mouth of pipe (106), first wash section inlet pipe mouth (107), wash section clamp cover deep and go out liquid mouth of pipe (205), wash section coil pipe liquid mouth of pipe (208) deeply, wash section exhaust mouth of pipe (212) deeply, wash section coil pipe feed liquor mouth of pipe (213) deeply, wash section clamp cover feed liquor mouth of pipe (214) deeply, wash section feeding mouth of pipe (215) deeply and all adopt flange joint structure or threaded connection structure.
CN202111176110.XA 2021-10-09 2021-10-09 High-temperature gas washing and purifying equipment Active CN113750725B (en)

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Publication number Priority date Publication date Assignee Title
CN105080225B (en) * 2014-05-16 2017-10-13 中盐吉兰泰盐化集团有限公司 Gas demister
CN104258653B (en) * 2014-09-25 2016-04-27 上海安赐环保科技股份有限公司 A kind of desulfidation tail gas high-efficiency demisting apparatus and demist technique
CN106955549A (en) * 2016-01-11 2017-07-18 刘英聚 A kind of gas scrubbing process and scrubbing tower
CN106221726A (en) * 2016-08-09 2016-12-14 中石化宁波工程有限公司 A kind of containing dust high-temperature oil gas wash cooling device and wash cooling method
CN107008079A (en) * 2017-05-08 2017-08-04 新疆中泰新鑫化工科技股份有限公司 Defroster filter element and demister

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