CN108568126B - Low-temperature residual liquid treatment device - Google Patents

Low-temperature residual liquid treatment device Download PDF

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Publication number
CN108568126B
CN108568126B CN201810440346.1A CN201810440346A CN108568126B CN 108568126 B CN108568126 B CN 108568126B CN 201810440346 A CN201810440346 A CN 201810440346A CN 108568126 B CN108568126 B CN 108568126B
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China
Prior art keywords
pipe
cylinder
low
communicated
outlet
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CN108568126A (en
Inventor
刘兴东
刘恒宁
雷雳
李永先
范斌
李小伟
陈虹
宋怡
王艳虹
刘硕
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Sinopec Engineering Group Co Ltd
Sinopec Ningbo Engineering Co Ltd
Sinopec Ningbo Technology Research Institute
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Sinopec Engineering Group Co Ltd
Sinopec Ningbo Engineering Co Ltd
Sinopec Ningbo Technology Research Institute
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Application filed by Sinopec Engineering Group Co Ltd, Sinopec Ningbo Engineering Co Ltd, Sinopec Ningbo Technology Research Institute filed Critical Sinopec Engineering Group Co Ltd
Priority to CN201810440346.1A priority Critical patent/CN108568126B/en
Publication of CN108568126A publication Critical patent/CN108568126A/en
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Publication of CN108568126B publication Critical patent/CN108568126B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/0011Heating features
    • B01D1/0041Use of fluids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/30Accessories for evaporators ; Constructional details thereof

Abstract

The invention discloses a low-temperature residual liquid treatment device which comprises a barrel body with an upper opening, a liquid inlet pipe and a heating pipe, wherein the lower part of the barrel body is buried below the ground of a concrete foundation, a cover plate is arranged at the top end of the barrel body, an exhaust pipe is arranged on the cover plate, the upper end of the exhaust pipe is communicated with the outside atmosphere, the lower end of the exhaust pipe is communicated with the barrel body, an outlet of the liquid inlet pipe penetrates through the side wall of the barrel body to enter the barrel body, the outlet of the liquid inlet pipe faces downwards, a nozzle is arranged at the outlet of the liquid inlet pipe, the inlet of the liquid inlet pipe is communicated with a low Wen Canye liquid outlet pipe of an air separation device, the heating pipe penetrates through the side wall of the barrel body to enter the barrel body, a plurality of exhaust holes are formed in the heating pipe, the inlet of the heating pipe is communicated with a dry heating air source, and cobbles are filled in the barrel body. The device is reasonable in structure, environment-friendly and safe, can safely and effectively treat a small amount of low Wen Canye discharged by the air separation device, avoids leakage of low-temperature liquid, and ensures the environmental safety of a discharge area.

Description

Low-temperature residual liquid treatment device
Technical Field
The invention relates to a residual liquid treatment device, in particular to a low-temperature residual liquid treatment device.
Background
The air separation unit can produce small amount of low temperature liquid under certain working condition. For example: when the air separation device is first put into operation, the pipeline and the equipment are required to be cooled, and the low-temperature liquid for cooling is discharged; in the running process of the air separation device, the working condition that the safety valve takes off to discharge low-temperature liquid exists; the backup system of the air separation device is required to discharge liquid in a low-temperature area before maintenance due to faults or planned shutdown; in addition, after the vehicle is charged, the low-temperature liquid in the rear pipe of the vehicle charging pump is required to be discharged. Because the primary discharge amount of the low-temperature liquid is smaller under the working condition, most factories choose to lead the collecting pipe into the residual liquid pit for direct discharge, but the low-temperature liquid is in a cryogenic state, the temperature is generally about-180 ℃, and the direct discharge can not only freeze the civil foundation near the residual liquid pit, but also generate a large amount of thick fog in the surrounding area of the residual liquid pit, thereby causing great harm to operators and environmental safety.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the low-temperature residual liquid treatment device which is reasonable in structure, environment-friendly and safe, and can safely and effectively treat a small amount of low Wen Canye discharged by the air separation device under various working conditions, thereby avoiding adverse effects on surrounding personnel, environment, equipment and civil engineering foundation caused by direct discharge of low-temperature liquid.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a low temperature raffinate processing apparatus, includes upper portion open-ended barrel, feed liquor pipe and heating pipe, the lower part of barrel bury underground in the ground of concrete foundation, the top of barrel install the apron, the apron on install the blast pipe, the upper end of blast pipe with external atmosphere open, the lower extreme of blast pipe communicate with each other with the barrel, the export of feed liquor pipe pass the lateral wall of barrel get into in the barrel, the export of feed liquor pipe face down, the exit of feed liquor pipe install the nozzle, the entry of feed liquor pipe communicate with each other with the low Wen Canye fluid-discharge tube of air separation device, the heating pipe pass the lateral wall of barrel get into in the barrel, the heating pipe on set up a plurality of exhaust holes, the entry of heating pipe communicate with each other with dry heating air supply, the barrel in filled with the cobblestone.
When the low-temperature residual liquid treatment device is used, the low-temperature residual liquid of the air separation device is collected into the liquid inlet pipe and is sprayed out by the nozzle at the outlet of the liquid inlet pipe, and the sprayed low-temperature liquid enters the cylinder body. The passage between cobbles in the cylinder is tiny and tortuous, brings great resistance to the flow of low-temperature liquid, can effectively increase the spreading area of the low-temperature liquid, ensures that the low-temperature liquid is very evenly distributed along the flow velocity of the section of the cylinder, improves the heat exchange efficiency, simultaneously, the evaporation of the low-temperature liquid can be further promoted by the heating gas introduced by the heating pipe, the evaporated gas is led to the safe high-level discharge through the exhaust pipe on the cover plate at the top end of the cylinder, the leakage of the low-temperature liquid can be effectively avoided, and the environmental safety of the discharge area is ensured.
Preferably, an interlayer is arranged between the outer side of the cylinder and the concrete foundation, cobblestones are filled in the interlayer, a gas purging mechanism is arranged in the interlayer, the gas purging mechanism comprises a gas blowing pipe, a plurality of gas blowing holes are formed in the gas blowing pipe, an inlet of the gas blowing pipe is communicated with a dry purging gas source, and the gas blowing pipe penetrates through the cobblestones in the interlayer and stretches to the lower side of the cylinder. Cobbles in the interlayer can prevent the side surface of the cylinder from being in direct contact with the concrete foundation so as to protect the foundation. The air blowing pipe plays a continuous gas blowing role on the interlayer, so that the gas filled among cobbles in the interlayer can be kept dry, and a dry peripheral environment is formed around the cylinder body, thereby further improving the heat exchange efficiency and ensuring the treatment effect on the low-temperature residual liquid.
The heating air source and the purging air source select dry air sources, and the purpose is to keep the environment in the cylinder and the interlayer dry and prevent the low-temperature liquid from freezing during discharge. In practice, the heating and purging sources may be selected from dry air or nitrogen.
Further, the outer side of the cylinder is provided with an annular cofferdam, the cofferdam is arranged above the ground of the concrete foundation, an annular stainless steel baffle is fixed on the side wall of the cylinder, the outer side of the stainless steel baffle is positioned above the cofferdam, and a gap is reserved between the stainless steel baffle and the cofferdam. The cofferdam and the baffle are arranged, so that rainwater can be effectively prevented from entering the interlayer to contact the low-temperature barrel body to freeze the surface of the barrel body, and the residual liquid treatment effect is ensured. The gap between the stainless steel baffle plate and the cofferdam is used for ensuring the discharge of the purge gas.
Preferably, the heating pipe comprises a main pipe and a plurality of annular pipes communicated with the main pipe, and the annular pipes are arranged up and down along the inner side wall of the cylinder. The annular pipes are arranged up and down in a layered manner, so that the distribution of the heating gas in the cylinder is more uniform, and the evaporation of the low-temperature liquid is facilitated.
Preferably, the inner side of the cylinder is provided with a plurality of angle steel rings, and the angle steel rings are distributed up and down along the inner side wall of the cylinder. The plurality of angle steel rings can effectively reduce the deformation of the cylinder body caused by larger temperature difference between the inside and the outside.
Preferably, the bottom of the cylinder is supported by a plurality of stainless steel support blocks. The stainless steel supporting blocks can avoid the direct contact between the cylinder body and the concrete foundation, thereby effectively protecting the bottom foundation.
Preferably, the upper end of the exhaust pipe is provided with an elbow, the elbow is close to the outlet of the exhaust pipe, the outlet of the exhaust pipe is provided with a downward groove, and the bevel angle of the groove is 20-40 degrees. The design of the elbow and the bevel groove can effectively prevent rainwater and other sundries from entering the cylinder body through the exhaust pipe.
Preferably, the cover plate is conical, and the cover plate and the cylinder are fixed through a flange ring so as to ensure that no accumulated liquid exists at the top of the cylinder.
Preferably, the plurality of exhaust holes are distributed on the heating pipe at equal intervals; the plurality of air blowing holes are distributed on the air blowing pipe at equal intervals.
Preferably, the outer diameter of the cylinder body is 500-2000 mm, and the height of the cylinder body is 1000-3000 mm.
Compared with the prior art, the invention has the following advantages: the low-temperature residual liquid treatment device disclosed by the invention has the advantages of simple structure, practicability, environmental protection and safety, does not need maintenance, can safely and effectively treat a small amount of low Wen Canye discharged by the air separation device under various working conditions, and avoids adverse effects on surrounding personnel, environment, equipment and civil engineering foundation caused by direct discharge of low-temperature liquid. When the device is used, the channels among cobbles in the cylinder body are tiny and tortuous, so that great resistance is brought to the flow of low-temperature liquid, the spreading area of the low-temperature liquid can be effectively increased, the flow velocity distribution of the low-temperature liquid along the section of the cylinder body is very uniform, the heat exchange efficiency is improved, meanwhile, the evaporation of the low-temperature liquid can be further promoted by heating gas introduced by the heating pipe, the evaporated gas is led to the safe high-temperature discharge through the exhaust pipe on the cover plate at the top end of the cylinder body, the leakage of the low-temperature liquid can be effectively avoided, and the environmental safety of a discharge area is ensured.
Drawings
FIG. 1 is a schematic diagram of a low temperature raffinate treating apparatus of the present invention;
fig. 2 is a schematic diagram of the relative positions of the stainless steel support blocks and the cylinder.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
The low temperature residual liquid treatment device of embodiment 1, as shown in fig. 1, comprises a cylinder 1 with an upper opening, a liquid inlet pipe 2 and a heating pipe 3, wherein the cylinder 1 is made of stainless steel, the lower part of the cylinder 1 is buried under the ground of a concrete foundation 8, a cover plate 6 is arranged at the top end of the cylinder 1, an exhaust pipe 62 is arranged on the cover plate 6, the upper end of the exhaust pipe 62 is communicated with the outside atmosphere, the lower end of the exhaust pipe 62 is communicated with the cylinder 1, the outlet of the liquid inlet pipe 2 passes through the side wall of the cylinder 1 and enters the cylinder 1, the outlet of the liquid inlet pipe 2 faces downwards, a nozzle 21 is arranged at the outlet of the liquid inlet pipe 2, the inlet of the liquid inlet pipe 2 is communicated with a low Wen Canye liquid outlet pipe (not shown in the drawing) of an air separation device (not shown in the drawing), the heating pipe 3 passes through the side wall of the cylinder 1 and enters the cylinder 1, a plurality of exhaust holes 33 are arranged on the heating pipe 3 at equal intervals, the inlet of the 3 is communicated with a dry heating air source (not shown in the drawing), and cobbles are filled in the cylinder 1.
The low temperature residual liquid treatment device of embodiment 2, as shown in fig. 1, comprises a cylinder 1 with an upper opening, a liquid inlet pipe 2 and a heating pipe 3, wherein the cylinder 1 is made of stainless steel, the lower part of the cylinder 1 is buried under the ground of a concrete foundation 8, a cover plate 6 is arranged at the top end of the cylinder 1, an exhaust pipe 62 is arranged on the cover plate 6, the upper end of the exhaust pipe 62 is communicated with the outside atmosphere, the lower end of the exhaust pipe 62 is communicated with the cylinder 1, the outlet of the liquid inlet pipe 2 passes through the side wall of the cylinder 1 and enters the cylinder 1, the outlet of the liquid inlet pipe 2 faces downwards, a nozzle 21 is arranged at the outlet of the liquid inlet pipe 2, the inlet of the liquid inlet pipe 2 is communicated with a low Wen Canye liquid discharge pipe (not shown in the figure) of an air separation device (not shown in the figure), the heating pipe 3 comprises a main pipe 31 and three annular pipes 32 communicated with the main pipe 31, the three annular pipes 32 are vertically arranged along the inner side wall of the cylinder 1, the 3 passes through the side wall of the cylinder 1 and enters the cylinder 1, a plurality of exhaust holes 33 are arranged on the heating pipe 3 at equal intervals, the inlet of the exhaust holes 33 is arranged on the heating pipe 3, the inlet of the heating pipe 3 is communicated with the air source (not shown in the figure) and heated pebbles in the cylinder 1) are filled.
The low temperature residual liquid treatment device of embodiment 3, as shown in fig. 1, comprises a cylinder 1 with an upper opening, a liquid inlet pipe 2 and a heating pipe 3, wherein the cylinder 1 is made of stainless steel, three angle steel rings 4 are arranged on the inner side of the cylinder 1, the three angle steel rings 4 are arranged up and down along the inner side wall of the cylinder 1, the lower part of the cylinder 1 is buried below the ground of a concrete foundation 8, a cover plate 6 is arranged at the top end of the cylinder 1, the cover plate 6 is conical, the cover plate 6 and the cylinder 1 are fixed by a flange ring 61, an exhaust pipe 62 is arranged on the cover plate 6, the upper end of the exhaust pipe 62 is communicated with the outside atmosphere, an elbow 63 is arranged at the upper end of the exhaust pipe 62, the elbow 63 is close to the outlet of the exhaust pipe 62, a downward groove 64 is arranged at the outlet of the exhaust pipe 62, the bevel angle of the groove 64 is 20 degrees, the lower end of the exhaust pipe 62 is communicated with the cylinder 1, the outlet of the liquid inlet pipe 2 penetrates through the side wall of the cylinder 1 to enter the cylinder 1, the outlet of the liquid inlet pipe 2 faces downwards, a nozzle 21 is arranged at the outlet of the liquid inlet pipe 2, the inlet of the liquid inlet pipe 2 is communicated with a low Wen Canye liquid discharge pipe (not shown in the figure) of an air separation device (not shown in the figure), the heating pipe 3 penetrates through the side wall of the cylinder 1 to enter the cylinder 1, a plurality of exhaust holes 33 are formed in the heating pipe 3, the exhaust holes 33 are distributed on the heating pipe 3 at equal intervals of 100mm, the inlet of the heating pipe 3 is communicated with a dry heating air source (not shown in the figure), and cobbles are filled in the cylinder 1; an interlayer 7 is arranged between the outer side of the cylinder body 1 and the concrete foundation 8, cobbles are filled in the interlayer 7, a gas blowing mechanism is arranged in the interlayer 7 and comprises a gas blowing pipe 71, a plurality of gas blowing holes 72 are formed in the gas blowing pipe 71, the gas blowing holes 72 are distributed on the gas blowing pipe 71 at intervals, an inlet of the gas blowing pipe 71 is communicated with a dry blowing gas source (not shown in the figure), and the gas blowing pipe 71 penetrates through the cobbles in the interlayer 7 and stretches to the lower side of the cylinder body 1.
The low temperature residual liquid treatment device of embodiment 4 is shown in fig. 1, which comprises a cylinder 1 with an opening at the upper part, a liquid inlet pipe 2 and a heating pipe 3, wherein the cylinder 1 is made of stainless steel, the lower part of the cylinder 1 is buried below the ground of a concrete foundation 8, a cover plate 6 is installed at the top end of the cylinder 1, the cover plate 6 is conical, the cover plate 6 and the cylinder 1 are fixed through a flange ring 61, an exhaust pipe 62 is installed on the cover plate 6, the upper end of the exhaust pipe 62 is communicated with the outside air, an elbow 63 is arranged at the upper end of the exhaust pipe 62, the elbow 63 is close to the outlet of the exhaust pipe 62, a downward groove 64 is arranged at the outlet of the exhaust pipe 62, the bevel angle of the groove 64 is 35 DEG, the lower end of the exhaust pipe 62 is communicated with the cylinder 1, the outlet of the liquid inlet pipe 2 passes through the side wall of the cylinder 1 and enters the cylinder 1, the outlet of the liquid inlet pipe 2 is downward, a nozzle 21 is installed at the outlet of the liquid inlet pipe 2, the inlet of the liquid inlet pipe 2 is communicated with a low Wen Canye liquid discharge pipe (not shown in the figure) of an air separation device (the figure), the heating pipe 3 passes through the side wall of the cylinder 1 and enters the cylinder 1, the three air inlets 31 and the three air inlets 33 are arranged at intervals of the air inlet pipe 33 and the air inlet pipe 33 are arranged in the air inlet pipe 33, the air inlet pipe 33 is arranged at the air inlet pipe 33 and the air inlet of the air inlet pipe 33; an interlayer 7 is arranged between the outer side of the cylinder body 1 and the concrete foundation 8, cobbles are filled in the interlayer 7, a gas blowing mechanism is arranged in the interlayer 7 and comprises a gas blowing pipe 71, a plurality of gas blowing holes 72 with the aperture of 5mm are formed in the gas blowing pipe 71, the gas blowing holes 72 are distributed on the gas blowing pipe 71 at equal intervals of 100mm, the inlet of the gas blowing pipe 71 is communicated with a dry blowing gas source (not shown in the figure), and the gas blowing pipe 71 penetrates through the cobbles in the interlayer 7 and stretches to the lower side of the cylinder body 1.
The low temperature residual liquid treatment device of example 5, as shown in FIG. 1, comprises a cylinder 1 with an upper opening, a liquid inlet pipe 2 and a heating pipe 3, wherein the cylinder 1 is made of stainless steel, the lower part of the cylinder 1 is buried under the ground of a concrete foundation 8, an annular cofferdam 81 is arranged on the outer side of the cylinder 1, the cofferdam 81 is arranged above the ground of the concrete foundation 8, an annular stainless steel baffle 11 is welded on the side wall of the cylinder 1, the outer side of the stainless steel baffle 11 is positioned above the cofferdam 81, a gap of 10mm is reserved between the stainless steel baffle 11 and the cofferdam 81, a cover plate 6 is arranged at the top end of the cylinder 1, an exhaust pipe 62 is arranged on the cover plate 6, the upper end of the exhaust pipe 62 is communicated with the outside atmosphere, an elbow 63 is arranged at the upper end of the exhaust pipe 62, the elbow 63 is close to the outlet of the exhaust pipe 62, a downward groove 64 is arranged at the outlet of the exhaust pipe 62, the bevel angle of the groove 64 is 35 degrees, the lower end of the exhaust pipe 62 is communicated with the cylinder 1, the outlet of the liquid inlet pipe 2 passes through the side wall of the cylinder 1 and enters the cylinder 1, the outlet of the liquid inlet pipe 2 faces downwards, a nozzle 21 is arranged at the outlet of the liquid inlet pipe 2, the inlet of the liquid inlet pipe 2 is communicated with a low Wen Canye liquid discharge pipe (not shown in the figure) of an air separation device (not shown in the figure), the heating pipe 3 passes through the side wall of the cylinder 1 and enters the cylinder 1, the heating pipe 3 comprises a main pipe 31 and three annular pipes 32 communicated with the main pipe 31, the three annular pipes 32 are vertically distributed along the inner side wall of the cylinder 1, a plurality of exhaust holes 33 with the aperture of 5mm are formed in the heating pipe 3, a plurality of exhaust holes 33 are distributed on the heating pipe 3 at equal intervals of 100mm, the inlet of the heating pipe 3 is communicated with a dry heating air source (not shown in the figure), and cobbles are filled in the cylinder 1; an interlayer 7 is arranged between the outer side of the cylinder body 1 and the concrete foundation 8, cobbles are filled in the interlayer 7, a gas blowing mechanism is arranged in the interlayer 7 and comprises a gas blowing pipe 71, a plurality of gas blowing holes 72 with the aperture of 5mm are formed in the gas blowing pipe 71, the gas blowing holes 72 are distributed on the gas blowing pipe 71 at equal intervals of 100mm, the inlet of the gas blowing pipe 71 is communicated with a dry blowing gas source (not shown in the figure), and the gas blowing pipe 71 penetrates through the cobbles in the interlayer 7 and stretches to the lower side of the cylinder body 1.
The low temperature residual liquid treatment device of example 6, as shown in FIG. 1, comprises a cylinder 1 with an upper opening, a liquid inlet pipe 2 and a heating pipe 3, wherein the cylinder 1 is made of stainless steel, three angle steel rings 4 are arranged on the inner side of the cylinder 1, the three angle steel rings 4 are arranged up and down along the inner side wall of the cylinder 1, the lower part of the cylinder 1 is buried under the ground of a concrete foundation 8, the bottom of the cylinder 1 is supported by four stainless steel supporting blocks 5 (as shown in FIG. 2), an annular cofferdam 81 is arranged on the outer side of the cylinder 1, the cofferdam 81 is arranged above the ground of the concrete foundation 8, an annular stainless steel baffle 11 is welded on the side wall of the cylinder 1, the outer side of the stainless steel baffle 11 is positioned above the cofferdam 81, a gap of 10mm is reserved between the stainless steel baffle 11 and the cofferdam 81, a cover plate 6 is arranged on the top end of the cylinder 1, an exhaust pipe 62 is arranged on the cover plate 6, the upper end of the exhaust pipe 62 is communicated with the outside atmosphere, an elbow 63 is arranged at the upper end of the exhaust pipe 62, the elbow 63 is close to the outlet of the exhaust pipe 62, a downward bevel 64 is arranged at the outlet of the exhaust pipe 62, the bevel 64 has an oblique angle of 35 degrees, the lower end of the exhaust pipe 62 is communicated with the cylinder 1, the outlet of the liquid inlet pipe 2 passes through the side wall of the cylinder 1 to enter the cylinder 1, the outlet of the liquid inlet pipe 2 faces downwards, a nozzle 21 is arranged at the outlet of the liquid inlet pipe 2, the inlet of the liquid inlet pipe 2 is communicated with a low Wen Canye liquid discharge pipe (not shown in the figure) of an air separation device (not shown in the figure), a heating pipe 3 passes through the side wall of the cylinder 1 to enter the cylinder 1, the heating pipe 3 comprises a main pipe 31 and three annular pipes 32 communicated with the main pipe 31, the three annular pipes 32 are vertically distributed along the inner side wall of the cylinder 1, a plurality of vent holes 33 with the aperture of 5mm are arranged on the heating pipe 3, the exhaust holes 33 are distributed on the heating pipe 3 at equal intervals of 100mm, the inlet of the heating pipe 3 is communicated with a dry heating air source (not shown in the figure), and cobbles are filled in the cylinder 1; an interlayer 7 is arranged between the outer side of the cylinder body 1 and the concrete foundation 8, cobbles are filled in the interlayer 7, a gas blowing mechanism is arranged in the interlayer 7 and comprises a gas blowing pipe 71, a plurality of gas blowing holes 72 with the aperture of 5mm are formed in the gas blowing pipe 71, the gas blowing holes 72 are distributed on the gas blowing pipe 71 at equal intervals of 100mm, the inlet of the gas blowing pipe 71 is communicated with a dry blowing gas source (not shown in the figure), and the gas blowing pipe 71 penetrates through the cobbles in the interlayer 7 and stretches to the lower side of the cylinder body 1.
The cobbles selected in the above examples were similar in particle size.
In the above embodiment, the outer diameter of the cylinder 1 is 750 mm and the height is 2000 mm.
The working principle of the low-temperature residual liquid treatment device is as follows: the low-temperature residual liquid of the air separation device is collected and enters the liquid inlet pipe 2, and is sprayed out by a nozzle 21 at the outlet of the liquid inlet pipe 2, and the sprayed low-temperature liquid enters the cylinder body 1. The channels among cobbles in the cylinder body 1 are tiny and tortuous, so that great resistance is brought to the flow of low-temperature liquid, the spreading area of the low-temperature liquid can be effectively increased, the flow velocity distribution of the low-temperature liquid along the section of the cylinder body 1 is very uniform, and the heat exchange efficiency is improved; the air blowing pipe 71 has continuous air blowing effect on the interlayer 7, so that the air filled among cobbles in the interlayer 7 can be kept dry, and a dry peripheral environment is formed around the cylinder 1, thereby further improving the heat exchange efficiency and ensuring the treatment effect on low-temperature residual liquid; the heating gas introduced by the heating pipe 3 can further promote the evaporation of the low-temperature liquid, and the evaporated gas is led to the safe high-level discharge through the exhaust pipe 62 on the cover plate 6 at the top end of the cylinder body 1, so that the leakage of the low-temperature liquid can be effectively avoided, and the environmental safety of a discharge area is ensured.

Claims (6)

1. The low-temperature residual liquid treatment device is characterized by comprising a barrel with an opening at the upper part, a liquid inlet pipe and a heating pipe, wherein the lower part of the barrel is buried below the ground of a concrete foundation, a cover plate is arranged at the top end of the barrel, an exhaust pipe is arranged on the cover plate, the upper end of the exhaust pipe is communicated with the outside atmosphere, the lower end of the exhaust pipe is communicated with the barrel, the outlet of the liquid inlet pipe penetrates through the side wall of the barrel to enter the barrel, the outlet of the liquid inlet pipe faces downwards, a nozzle is arranged at the outlet of the liquid inlet pipe, the inlet of the liquid inlet pipe is communicated with a low Wen Canye liquid outlet pipe of an air separation device, the heating pipe penetrates through the side wall of the barrel to enter the barrel, a plurality of exhaust holes are formed in the heating pipe, the inlet of the heating pipe is communicated with a dry heating air source, and cobblestones are filled in the barrel; an interlayer is arranged between the outer side of the cylinder body and the concrete foundation, cobbles are filled in the interlayer, a gas blowing mechanism is arranged in the interlayer, the gas blowing mechanism comprises a gas blowing pipe, a plurality of gas blowing holes are formed in the gas blowing pipe, an inlet of the gas blowing pipe is communicated with a dry blowing gas source, and the gas blowing pipe penetrates through the cobbles in the interlayer and stretches to the lower side of the cylinder body; the outer side of the cylinder is provided with an annular cofferdam, the cofferdam is arranged above the ground of the concrete foundation, an annular stainless steel baffle is fixed on the side wall of the cylinder, the outer side of the stainless steel baffle is positioned above the cofferdam, and a gap is reserved between the stainless steel baffle and the cofferdam; the heating pipe comprises a main pipe and a plurality of annular pipes communicated with the main pipe, and the annular pipes are arranged up and down along the inner side wall of the cylinder; the upper end of the exhaust pipe is provided with an elbow, the elbow is close to the outlet of the exhaust pipe, the outlet of the exhaust pipe is provided with a downward groove, and the bevel angle of the groove is 20-40 degrees.
2. The device for treating low-temperature residual liquid according to claim 1, wherein a plurality of angle steel rings are arranged on the inner side of the cylinder body, and the plurality of angle steel rings are arranged up and down along the inner side wall of the cylinder body.
3. The apparatus of claim 1, wherein the bottom of the cylinder is supported by a plurality of stainless steel support blocks.
4. The apparatus of claim 1, wherein the cover plate is tapered and is secured to the cylinder by a flange ring.
5. The apparatus for treating a low temperature residual liquid according to claim 1, wherein said plurality of exhaust holes are arranged at equal intervals on said heating pipe; the plurality of air blowing holes are distributed on the air blowing pipe at equal intervals.
6. The device for treating low-temperature residual liquid according to claim 1, wherein the outer diameter of the cylinder is 500-2000 mm and the height is 1000-3000 mm.
CN201810440346.1A 2018-05-10 2018-05-10 Low-temperature residual liquid treatment device Active CN108568126B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN108568126B true CN108568126B (en) 2023-08-04

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110925513B (en) * 2019-10-22 2021-04-27 北京航天试验技术研究所 Low-temperature high-pressure fluid discharge device
CN115040881A (en) * 2022-06-07 2022-09-13 中冶华天工程技术有限公司 Steel pipe and concrete combined raffinate evaporator device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202915046U (en) * 2012-10-23 2013-05-01 中冶南方工程技术有限公司 Integrated device for collection and gasification and diffusion of cryogenic liquid
CN107051307A (en) * 2017-06-27 2017-08-18 洛阳龙门药业有限公司 A kind of uniform mixing device for being used to prepare liquid preparation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202915046U (en) * 2012-10-23 2013-05-01 中冶南方工程技术有限公司 Integrated device for collection and gasification and diffusion of cryogenic liquid
CN107051307A (en) * 2017-06-27 2017-08-18 洛阳龙门药业有限公司 A kind of uniform mixing device for being used to prepare liquid preparation

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