CN110756009A - Hydrogen chloride is transported and is revealed absorption device - Google Patents

Hydrogen chloride is transported and is revealed absorption device Download PDF

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Publication number
CN110756009A
CN110756009A CN201911111609.5A CN201911111609A CN110756009A CN 110756009 A CN110756009 A CN 110756009A CN 201911111609 A CN201911111609 A CN 201911111609A CN 110756009 A CN110756009 A CN 110756009A
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CN
China
Prior art keywords
pipe
absorption
negative pressure
water tank
hydrogen chloride
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Pending
Application number
CN201911111609.5A
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Chinese (zh)
Inventor
马杰
何华伦
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NINGXIA BAOMA PHARMACEUTICAL Co Ltd
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NINGXIA BAOMA PHARMACEUTICAL Co Ltd
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Priority to CN201911111609.5A priority Critical patent/CN110756009A/en
Publication of CN110756009A publication Critical patent/CN110756009A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456—Removing acid components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B01D2252/103—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/204—Inorganic halogen compounds
    • B01D2257/2045—Hydrochloric acid

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

The invention relates to the technical field of environmental protection equipment, in particular to a hydrogen chloride transfer leakage absorption device; the suction cover is a conical cover and is used for a non-airtight cover transfer opening, the conical top of the suction cover is sequentially connected with a suction cover valve, a suction pipe and a negative pressure tank inlet, the negative pressure tank is a pressure-resistant tank, the negative pressure tank inlet is arranged at the top of the negative pressure tank, the head end of an absorption pipe is arranged on the side surface of the negative pressure tank, the absorption pipe is a reducer pipe with large diameters at the head end and the tail end and a reduced diameter at the center to be a throat part, the tail end of the absorption pipe is communicated with a water tank, the liquid level below the bottom of the water tank is communicated with the inlet of a spray pipe pump, the outlet of the spray pipe is connected with an absorption pipe spray pipe, the absorption; the invention provides a low-cost and high-efficiency hydrogen chloride transfer leakage absorbing and removing device which can be used for replacing a sealing structure for preventing leakage in a sealing way and also can be used as a fault backup in a sealing and leakage preventing way, so that the leakage in the high-concentration hydrogen chloride transfer and dumping process is greatly reduced.

Description

Hydrogen chloride is transported and is revealed absorption device
The technical field is as follows:
the invention relates to the technical field of environmental protection equipment, in particular to a hydrogen chloride transfer leakage absorption device.
Background art:
hydrogen chloride is a common chemical raw material, and is stored and transported in a liquid state in the state of a high-concentration aqueous solution in many cases.
In the process of transferring the high-concentration hydrogen chloride water solution to the storage and transportation equipment, the hydrogen chloride gas is inevitably separated out and diffused into the air, and if the separated gas is diffused, serious air pollution can be caused besides the loss of hydrogen chloride materials, and the health of personnel in an operation area is harmed.
At present, a completely sealed transfer conveying pipeline interface is adopted for the problem treatment mode, the scheme can completely isolate the separated hydrogen chloride gas in a storage and transportation container when no fault exists, materials are not lost, the environment cannot be polluted, however, due to the high corrosivity of the hydrogen chloride water solution and the gas, the service life of a related sealing structure is short, the leakage is easily caused by corrosion failure, the reliability is ensured by frequent maintenance and replacement of a sealing element, the equipment cost is high, and the leakage accident is easily caused.
The invention content is as follows:
in view of the above, there is a need to design a hydrogen chloride transfer leakage absorption device with low sealing requirement, low cost and easy operation, which can replace or be used as a backup for the current solution for preventing hydrogen chloride transfer leakage.
The absorption device for hydrogen chloride transfer leakage comprises an absorption cover, an absorption cover valve, an absorption pipe, a negative pressure tank, an absorption pipe spray pipe, a water tank and a spray pipe pump.
Wherein, it is the toper cover to inhale except that the cover, a mouth is transported for non-airtight shade, its vertex of a cone connects in order and inhales except that the cover valve, inhale and remove pipe and negative pressure jar import, the negative pressure jar is withstand voltage jar, the negative pressure jar import sets up at negative pressure tank deck portion, negative pressure jar side-mounting absorption tube head end, the absorption tube is big for end to end both ends diameter, the reducing pipe that the central diameter reduces to the throat, absorption tube tail end and water tank UNICOM, below the water tank bottom liquid level with spray tube pump import UNICOM, the absorption tube spray tube is connected to the spray tube pump export, the absorption tube spray tube penetrates and extends to the absorption tube throat by the absorption tube head end, the directional absorption tube tail end of.
The top of the water tank is provided with a water tank exhaust pipe.
When the device works, the non-airtight cover of the absorbing cover is easy to leak, the spray pipe pump works to spray water in the water tank into the tail end side of the throat part of the absorbing pipe through the spray pipe of the absorbing pipe, air in the absorbing pipe forms low pressure under the driving of water flow due to the Bernoulli principle, and then the water flows through the absorbing pipe to enter the water tank and is discharged through the exhaust pipe, air containing hydrogen chloride gas in the absorbing cover area is sucked by the low pressure, and the air enters the absorbing pipe through the absorbing pipe and the negative pressure tank and is absorbed by the water flow to form low-concentration hydrogen chloride solution which is stored in the water tank.
In other words, in the process, when the air in the absorbing and removing cover area has no hydrogen chloride gas leakage, the absorbing and removing speed is low and is only indirectly driven by the sprinkling pump, and when the air in the absorbing and removing cover area has hydrogen chloride gas leakage, the absorbing and removing speed of the absorbing and removing cover area can be accelerated in the process of absorbing hydrogen chloride gas, the absorbing and removing efficiency is improved, and meanwhile, extra energy supply is not needed in the accelerating process.
In the process, the negative pressure tank can store energy for negative pressure, and can also store the water which is sucked back when the concentration of the hydrogen chloride gas is too high, so that the water in the absorption pipe is prevented from being sucked back and sprayed out from the suction cover to pollute materials.
The chemical production is carried out in the corresponding absorption occasion, and when the production tail gas contains alkaline gas such as ammonia, a neutralization alkaline gas inlet pipe can be added in the design, the neutralization alkaline gas inlet pipe is connected to the middle part of the absorption pipe through an alkaline gas valve, the tail gas containing the ammonia is absorbed through the same absorption process, the hydrogen chloride in the water tank can be neutralized while the ammonia is removed for the production tail gas, and the possibility that the hydrogen chloride is separated out, overflowed and corroded in the water tank and a pipeline is reduced.
Preferably, this design still includes negative pressure jar drain pipe, and negative pressure jar drain pipe is installed in negative pressure jar bottom to be provided with the drain valve, this negative pressure jar drain pipe is used for getting rid of because of the water that the suck-back got into in the negative pressure jar.
Preferably, the water tank is provided with a plurality of baffle plates, an air-tight plate and a gas guide pipe, wherein the baffle plates are arranged on the inner side wall of the water tank in a staggered mode, at least the highest layer of the baffle plates is obliquely arranged, the inclined part of the baffle plates and the wall of the water tank form a water bucket, the air-tight plate is arranged on the inner side of the top of the water tank, the lower end of the air-tight plate is located below the liquid level of the water bucket, the air-tight plate and the liquid level of the water bucket form a liquid-tight air seal, the space on one side of the wall of the.
The upper end of the air guide pipe is connected above the liquid level of the upper part of the gas-liquid separation chamber, the lower end of the air guide pipe is connected above the liquid level of the space below the lowest baffle plate, and the exhaust pipe is arranged at the top of the water tank in the region of the gas-liquid separation chamber in the water tank.
During operation, the water flow wrapped with gas enters the gas-liquid separation chamber from the tail end of the absorption tube, gas-liquid separation is realized through a liquid seal formed by the airtight plate and the water bucket, water forms a multi-layer water curtain through the staggered multi-layer baffle plates, gas enters the lower layer of the water tank through the air guide tube, and finally the gas passes through the water curtain layer by layer to rise and is discharged through the exhaust pipe.
Furthermore, the upper end of the bleed air pipe is provided with a non-airtight cover plate which is obliquely arranged and used for preventing tail end drainage of the absorption pipe from entering the bleed air pipe.
Furthermore, the baffling board is the slope installation, and the slope forms the water bucket with the water tank wall, increases the water storage total amount in the water tank, reduces the hydrogen chloride concentration of aquatic, prevents to appear out and leak.
The invention provides a low-cost and high-efficiency hydrogen chloride transfer leakage absorbing and removing device which can be used for replacing a sealing structure for preventing leakage in a sealing way and also can be used as a fault backup in a sealing and leakage preventing way, so that the leakage in the high-concentration hydrogen chloride transfer and dumping process is greatly reduced.
Description of the drawings:
FIG. 1 is a schematic structural view of a specific embodiment of the hydrogen chloride transfer leakage absorption device of the present invention;
FIG. 2 is a schematic view of a partial structure of a water tank according to an embodiment of the hydrogen chloride transfer leakage absorption apparatus of the present invention.
In the figure: the device comprises a suction cover 1, a suction cover valve 101, a suction pipe 102, a neutralized alkali gas inlet pipe 2, a negative pressure tank 3, a negative pressure tank drain pipe 301, a suction pipe 4, a suction pipe spray pipe 401, a water tank 5, a baffle plate 501, an air-tight plate 502, a bleed pipe 503, a cover plate 504, an exhaust pipe 505 and a spray pipe pump 6.
The specific implementation mode is as follows:
the hydrogen chloride is transported and is revealed gettering device is including gettering cover 1, gettering cover valve 101, gettering pipe 102, neutralization alkali gas intake pipe 2, negative pressure jar 3, negative pressure jar drain pipe 301, absorption tube 4, absorption tube spray tube 401, water tank 5 and spray tube pump 6.
Wherein, the suction hood 1 is a conical cover, a mouth is transported to for non-airtight shade, its vertex of a cone connects suction hood valve 101 in order, suction pipe 102 and 3 imports of negative pressure jar, the neutral alkali gas intake pipe 2 is connected at suction pipe 102 middle part through the alkali gas valve, negative pressure jar 3 is withstand voltage jar, 3 imports of negative pressure jar set up at the 3 tops of negative pressure jar, negative pressure jar drain pipe 301 is installed in 3 bottoms of negative pressure jar, and be provided with the drain valve, 3 side-mounting absorption tube 4 head ends of negative pressure jar, absorption tube 4 is that head and the tail both ends diameter is big, the reducing pipe that the central diameter reduces to the throat, 4 tail ends of absorption tube and 5 UNICOM of water tank, below 5 bottoms liquid level with spray tube 6 inlet UNICOM of spray tube pump, 6 exit linkage absorption tube spray tube 401 of spray tube pump, absorption tube 401 penetrates the spray tube by 4 head ends of absorption tube and extends to 4 throats of absorption tube.
The water tank 5 is provided with three baffle plates 501, an air-tight plate 502, an air-bleed pipe 503 and a cover plate 504, wherein the three baffle plates 501 are arranged on the inner side wall of the water tank 5 in a staggered manner, the highest layer of baffle plate 501 is obliquely arranged, the inclined part of the baffle plate forms a water bucket with the water tank 5, the air-tight plate 502 is arranged on the inner side of the top of the water tank 5, the lower end of the air-tight plate 502 is positioned below the liquid level of the water bucket, the air-tight plate 502 forms a liquid-tight air seal with the liquid level of the water bucket, the space on one side of the wall of the water tank 5.
The upper end of the bleed air pipe 503 is connected above the liquid level of the upper part of the gas-liquid separation chamber, the lower end of the bleed air pipe 503 is connected above the liquid level of the space below the lowest baffle plate 501, and the exhaust pipe 505 is installed at the top of the water tank 5 in the region of the gas-liquid separation chamber in the water tank 5.
A non-airtight cover plate 504 is obliquely installed on the upper end of the bleed air pipe 503 for preventing the tail end of the suction pipe 4 from draining into the bleed air pipe 503.
The baffle plate 501 is obliquely arranged, the inclined part and the wall of the water tank 5 form a water bucket, the total amount of water stored in the water tank 5 is increased, the concentration of hydrogen chloride in water is reduced, and leakage is prevented from being separated out.
When the device works, the non-airtight cover of the absorbing cover 1 is easy to leak at the transfer port, the spray pipe pump 6 works to spray water in the water tank 5 into the tail end side of the throat part of the absorbing pipe 4 through the absorbing pipe spray pipe 401, air in the absorbing pipe 4 is driven by water flow to form low pressure due to Bernoulli principle, and then the low pressure is wrapped by the water flow and enters the water tank 5 to be discharged through the exhaust pipe 505, the air containing hydrogen chloride gas in the region of the absorbing cover 1 is absorbed by the low pressure, enters the absorbing pipe 4 through the absorbing pipe 102 and the negative pressure tank 3, low-concentration hydrogen chloride solution is formed by water flow absorption and stored in the water tank 5, and the hydrogen chloride gas can form negative pressure in the absorbing pipe 4 and the negative pressure tank 3 in the absorbing process to accelerate the absorption of the air in the region of the.
In other words, in the above process, when the air in the region of the absorbing cover 1 has no hydrogen chloride gas leakage, the absorbing speed is low and is only indirectly driven by the sprinkling pump, and when the air in the region of the absorbing cover 1 has hydrogen chloride gas leakage, the absorbing speed of the hydrogen chloride gas in the region of the absorbing cover 1 can be accelerated in the process of absorbing hydrogen chloride gas, so that the absorbing efficiency is improved, and meanwhile, no extra energy is required for the accelerating process.
In the process, the negative pressure tank 3 can store energy for negative pressure, and can also store the water sucked back when the concentration of the hydrogen chloride gas is too high, so as to prevent the water in the absorption pipe 4 from being sucked back and sprayed out from the absorption cover 1 to pollute materials.
The water flow carrying the gas enters a gas-liquid separation chamber from the tail end of the absorption pipe 4, gas-liquid separation is realized through a liquid seal formed by the airtight plate 502 and the water bucket, the water forms a multi-layer water curtain through the staggered multi-layer baffle plate 501, the gas enters the lower layer of the water tank 5 through the air entraining pipe 503, passes through the water curtain layer by layer to rise and is finally discharged through the exhaust pipe 505, and the gas is sprayed and absorbed by the water curtain for multiple times in the process, so that the absorption rate of the hydrogen chloride is improved, and the discharge leakage is further reduced.

Claims (6)

1. The hydrogen chloride transfer leakage absorption device is characterized by comprising an absorption cover, an absorption cover valve, an absorption pipe, a negative pressure tank, an absorption pipe spray pipe, a water tank and a spray pipe pump;
the absorption hood is a conical hood and is used for a non-airtight mask transfer opening, the conical top of the absorption hood is sequentially connected with an absorption hood valve, an absorption pipe and a negative pressure tank inlet, the negative pressure tank is a pressure-resistant tank, the negative pressure tank inlet is arranged at the top of the negative pressure tank, the side surface of the negative pressure tank is provided with the head end of the absorption pipe, the absorption pipe is a reducer pipe with large diameters at the head end and the tail end and with a reduced diameter at the center to be a throat part, the tail end of the absorption pipe is communicated with a water tank, the liquid level below the bottom of the water tank is communicated with an inlet of a spray pipe pump, the outlet of the spray pipe pump is connected with an absorption pipe spray pipe, the absorption;
the top of the water tank is provided with a water tank exhaust pipe.
2. The hydrogen chloride transfer leakage absorption device as claimed in claim 1, further comprising a neutralized alkali gas inlet pipe, wherein the neutralized alkali gas inlet pipe is connected to the middle part of the absorption pipe through an alkali gas valve.
3. The hydrogen chloride transfer leakage absorption device as claimed in claim 1, further comprising a negative pressure tank drain pipe, wherein the negative pressure tank drain pipe is installed at the bottom of the negative pressure tank and provided with a drain valve.
4. The hydrogen chloride transportation leakage and absorption device as claimed in claim 1, wherein the water tank is provided with a plurality of baffle plates, an air-tight plate and an air-entraining pipe, wherein the baffle plates are arranged on the inner side wall of the water tank in a staggered manner, at least one highest layer of the baffle plates is obliquely arranged, the inclined part of the baffle plate and the wall of the water tank form a water bucket, the air-tight plate is arranged on the inner side of the top of the water tank, the lower end of the air-tight plate is positioned below the liquid level of the water bucket, the air-tight plate and the liquid level of the water bucket form a liquid-tight air seal, the space on one side of the wall of the water bucket;
the upper end of the air guide pipe is connected above the liquid level of the upper part of the gas-liquid separation chamber, the lower end of the air guide pipe is connected above the liquid level of the space below the lowest baffle plate, and the exhaust pipe is arranged at the top of the water tank in the region of the gas-liquid separation chamber in the water tank.
5. The hydrogen chloride transfer leakage and suction device as set forth in claim 4, wherein the air-bleed pipe is provided at an upper end thereof with a non-airtight cover plate installed obliquely for preventing the tail end of the absorption pipe from draining into the air-bleed pipe.
6. The hydrogen chloride transfer leakage absorption device as claimed in claim 4, wherein the baffle plates are all installed in an inclined mode, and the inclined portions and the wall of the water tank form a water bucket.
CN201911111609.5A 2019-11-14 2019-11-14 Hydrogen chloride is transported and is revealed absorption device Pending CN110756009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911111609.5A CN110756009A (en) 2019-11-14 2019-11-14 Hydrogen chloride is transported and is revealed absorption device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911111609.5A CN110756009A (en) 2019-11-14 2019-11-14 Hydrogen chloride is transported and is revealed absorption device

Publications (1)

Publication Number Publication Date
CN110756009A true CN110756009A (en) 2020-02-07

Family

ID=69338114

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911111609.5A Pending CN110756009A (en) 2019-11-14 2019-11-14 Hydrogen chloride is transported and is revealed absorption device

Country Status (1)

Country Link
CN (1) CN110756009A (en)

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