CN219784296U - Decompression rectification flue gas absorption device of easy-sublimation 4-bromodiphenyl - Google Patents
Decompression rectification flue gas absorption device of easy-sublimation 4-bromodiphenyl Download PDFInfo
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- CN219784296U CN219784296U CN202320792807.8U CN202320792807U CN219784296U CN 219784296 U CN219784296 U CN 219784296U CN 202320792807 U CN202320792807 U CN 202320792807U CN 219784296 U CN219784296 U CN 219784296U
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- flue gas
- stainless steel
- cavity
- cavity steel
- steel construction
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000003546 flue gas Substances 0.000 title claims abstract description 49
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 39
- PKJBWOWQJHHAHG-UHFFFAOYSA-N 1-bromo-4-phenylbenzene Chemical group C1=CC(Br)=CC=C1C1=CC=CC=C1 PKJBWOWQJHHAHG-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000000859 sublimation Methods 0.000 title claims abstract description 10
- 230000006837 decompression Effects 0.000 title description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 50
- 239000010935 stainless steel Substances 0.000 claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 238000010276 construction Methods 0.000 claims abstract description 24
- 230000008022 sublimation Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 abstract description 14
- 239000013078 crystal Substances 0.000 abstract description 7
- 238000005461 lubrication Methods 0.000 abstract description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000005292 vacuum distillation Methods 0.000 description 4
- 235000010290 biphenyl Nutrition 0.000 description 3
- 239000004305 biphenyl Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model provides an easy sublimation 4-bromodiphenyl pressure reduction rectification flue gas absorbing device, includes the stainless steel jar body, cavity steel construction, check valve, and cavity steel construction sets up in the inside of the stainless steel jar body, and cavity steel construction's upper end and stainless steel jar body sealing connection, cavity steel construction bottom are equipped with the through-hole of giving vent to anger, also are equipped with the through-hole on the lateral wall of cavity steel construction, and the check valve is installed to the through-hole on the cavity steel construction lateral wall, has the flue gas absorption medium in the stainless steel jar body, and the liquid level of flue gas absorption medium is less than the check valve. The utility model completely cools and absorbs the smoke of the sublimate easily in the vacuum rectifying system through the water absorption liquid, so that the smoke cannot enter the vacuum pump from the vacuum system pipeline, crystal attachments are not easy to form in the vacuum pump, the lubrication of bearings in the vacuum pump is not influenced, and the vacuum pump is not corroded; the smoke absorption under different vacuum conditions can be realized; the device has simple structure, and the absorption liquid can separate out sublimates through the centrifugal machine, and is easy to operate and clean.
Description
Technical Field
The utility model belongs to the technical field of flue gas treatment of a vacuum rectification system; in particular to a decompression rectification smoke absorption device of 4-bromodiphenyl which is easy to sublimate.
Background
The vacuum rectification is a method for separating different components by utilizing the boiling point difference of the materials under the high vacuum condition, namely the purpose of sectionally intercepting the different boiling point components in the materials in a rectification system is realized by utilizing the boiling point difference of the materials under the high vacuum condition.
The high boiling point sublimable 4-bromodiphenyl is boiled and gasified in the process of decompression rectification, most of the material is cooled by a condenser (the temperature of the condenser is close to the melting point of the condenser), the material is recovered in a liquid state at a temperature higher than the melting point of the material, and the temperature is greatly higher than the sublimation point of the material at the moment, because under the high vacuum condition (-0.1 Kpa), part of the material sublimes to form smoke which cannot be cooled and recovered by the condenser, the smoke enters a vacuum pump through a vacuum system pipeline, crystal attachments are formed in the vacuum pump, the lubrication of bearings in the vacuum pump is affected, and the vacuum pump is corroded.
There are several conventional collection apparatuses for sublimates: the box-type condensation collection is realized by densely arranging true fins in a box body, rectifying flue gas is cooled by the vibrating fins in the box body and is adhered to the vibrating fins, and when the maximum adhesion amount is reached, the box body of the vibrating fins is heated to melt and discharge the adhered crystals; a cylindrical automatic rotary scraping blade is characterized in that sublimating smoke is cooled through a cylindrical inner wall, crystals are adhered to the cylindrical inner wall after the smoke is cooled, a motor is arranged above the cylinder to drive a scraper, and the scraper is tightly attached to the cylindrical inner wall to continuously rotate so as to scrape the adhered crystals into a bin below.
At present, both devices are mature, but the devices used by the devices have the following disadvantages:
1) The heating and remelting discharge of the crystal attachments are not suitable for some high-melting-point substances, the attachments are too much and too thick, the heating process time is long, and the complete melting discharge is not easy;
2) In order to ensure smooth operation of the scraper, the inner wall of the cylinder is too smooth, the sublimated flue gas cannot form turbulence, and the collection efficiency is low;
3) Under high vacuum condition, both equipment structures can not let the sublimation flue gas contact with the condensation surface completely to the collection efficiency of sublimation flue gas has been reduced.
Disclosure of Invention
The utility model aims to provide the sublimable 4-bromodiphenyl oxide decompression rectification smoke absorbing device, which is used for completely cooling and absorbing sublimable substance smoke of a vacuum rectification system through water absorption liquid, so that the smoke cannot enter a vacuum pump from a vacuum system pipeline, crystal attachments are not easy to form in the vacuum pump, the lubrication of bearings in the vacuum pump is not influenced, and the vacuum pump is not corroded; the smoke absorption under different vacuum conditions can be realized, and the device can be flexibly adapted to various vacuum working conditions; the device has simple structure, and the absorption liquid can separate out sublimates through the centrifugal machine, and is easy to operate and clean.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an easy sublimation 4-bromodiphenyl pressure reduction rectification flue gas absorbing device, includes the stainless steel jar body, cavity steel construction, check valve, the cavity steel construction sets up the inside at the stainless steel jar body, the upper end and the stainless steel jar body sealing connection of cavity steel construction, cavity steel construction bottom is equipped with the through-hole of giving vent to anger, also be equipped with the through-hole on the lateral wall of cavity steel construction, the check valve is installed to the through-hole on the cavity steel construction lateral wall, there is the flue gas absorption medium in the stainless steel jar body, and the liquid level of flue gas absorption medium is less than the check valve.
The flue gas absorbing medium is water.
Stainless steel baffles are arranged inside the cavity steel structure and above the check valve, and are in semi-closed connection with the cavity steel structure, and an air flow channel is reserved.
The number of the stainless steel baffles is 2, and the 2 stainless steel baffles are arranged in a staggered mode up and down.
The stainless steel tank body is externally connected with a liquid level meter.
The stainless steel tank is characterized in that a water inlet, an air outlet and an air inlet are formed in the upper end of the stainless steel tank body, the water inlet and the air outlet are arranged outside the cavity steel structure, the air inlet is formed in the upper end of the cavity steel structure, and an outlet and a valve are arranged at the bottom of the stainless steel tank body.
And a transparent sight glass is arranged on the side wall of the stainless steel tank body.
Compared with the prior art, the utility model has the beneficial effects that:
1) The problem of low smoke absorption efficiency is avoided by completely contacting the smoke with the water absorption liquid;
2) Through a flue gas check valve arranged in the device, flue gas can only enter the vacuum pump system after being fully absorbed by the water absorption liquid under the vacuum condition, and air can only be communicated with the rectification system through the check valve to achieve air pressure balance after vacuum pressure relief, so that the water absorption liquid cannot flow back into the rectification system;
3) Through the water baffle arranged in the device, the fluctuation splashing of the water absorption liquid can not enter the rectification system under the working condition;
4) The water absorption liquid is easy to treat, only the centrifuge is needed for filtering, heating or scraping knife is not needed, and an additional power supply or a heating system is not needed.
Drawings
FIG. 1 is a schematic diagram of the structure of a sublimable 4-bromodiphenyl oxide vacuum rectification flue gas absorber.
FIG. 2 is a schematic side view of a device for absorbing flue gas by decompression and rectification of sublimable 4-bromodiphenyl oxide.
FIG. 3 is a schematic diagram showing the top view structure of the sublimable 4-bromodiphenyl oxide vacuum rectification flue gas absorber.
In the figure: 1-air inlet, 2-air outlet, 3-water inlet, 4-valve, 5-bracket leg, 6-liquid level meter, 7-check valve, 8-air outlet through hole, 9-stainless steel baffle, 10-stainless steel tank, 11-cavity steel structure, 12-sight glass.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. The specific embodiments described herein are to be considered in a descriptive sense only and not for purposes of limitation, the scope of the utility model being so modified.
The utility model provides an easy sublimation 4-bromodiphenyl pressure reduction rectification flue gas absorbing device, including stainless steel jar body 10, cavity steel construction 11, check valve 7, cavity steel construction 11 sets up in the inside of stainless steel jar body 10, cavity steel construction 11's upper end and stainless steel jar body 10 sealing connection, cavity steel construction 11 bottom is equipped with a plurality of through-hole 8 of giving vent to anger, also is equipped with the through-hole on the lateral wall of cavity steel construction, the check valve 7 is installed to the through-hole on the cavity steel construction lateral wall, there is the flue gas absorption medium in the stainless steel jar body 10, the liquid level of flue gas absorption medium is less than check valve 7. The flue gas absorbing medium is water.
The stainless steel baffle plate 9 is arranged inside the cavity steel structure 11 and above the check valve 7, the stainless steel baffle plate 9 is in semi-closed connection with the cavity steel structure 11, and an air flow channel is reserved.
The number of the stainless steel baffles 9 is 2, and the 2 stainless steel baffles 9 are arranged in a staggered way up and down.
The stainless steel tank body 10 is externally connected with a liquid level meter 6.
The upper end of the stainless steel tank body 10 is provided with a water inlet 3, an air outlet 2 and an air inlet 1, the water inlet 3 and the air outlet 2 are arranged outside the cavity steel structure 11, the air inlet 1 is arranged at the upper end of the cavity steel structure 11, and the bottom of the stainless steel tank body 10 is provided with an outlet and a valve 4. A transparent mirror 12 is provided on the side wall of the stainless steel tank 10.
The gas inlet 1 is connected with a flue gas outlet of the vacuum rectification system, the gas outlet 2 is connected with the vacuum pump system, the ventilation direction from the stainless steel tank 10 into the cavity steel structure 11 is the forward installation direction of the check valve 7, namely, when the internal air pressure of the cavity steel structure 11 is large, the check valve 7 is closed, and when the internal air pressure of the cavity steel structure 11 is small, the check valve 7 is opened.
The stainless steel tank body 10 is supported and fixed by adopting a cylindrical barrel through bracket legs 5; the valve 4 is used for discharging the absorption liquid; the liquid level meter 6 is used for observing the liquid level of the absorption liquid in the tank body, and the transparent sight glass 12 is used for dry observation of the condition in the tank body.
The cavity steel structure 11 is also of a cylindrical barrel structure and is welded inside the stainless steel tank body 10, and a plurality of air outlet through holes 8 are positioned below the water surface; the check valve 7 is positioned above the water surface, when the pressure reduction rectification system works, rectification flue gas enters the cavity steel structure 11 through the air inlet 1, the check valve 7 is closed, the flue gas enters absorption liquid at the bottom of the cavity steel structure 11, then enters a cavity between the stainless steel tank 10 and the cavity steel structure 11 through the air outlet through hole 8, finally flows out to the vacuum pump system through the air outlet 2, and when the pressure reduction rectification system stops working and pressure relief, the check valve 7 is opened, and air flow in the cavity between the stainless steel tank 10 and the cavity steel structure 11 enters the cavity steel structure 11 from the check valve, so that air pressure balance is achieved, and the absorption liquid is prevented from flowing back into the rectification system; the two stainless steel baffles 9 are used for preventing absorption liquid from splashing and flowing back into the rectification system in the gas washing process.
The flue gas absorption liquid is water, the water cost is low, the water is easy to obtain, the flue gas temperature can be reduced, sublimated 4-bromobiphenyl in the flue gas is difficult to flow into a vacuum pump system along with the flue gas after being absorbed by the water, and meanwhile, the sublimated 4-bromobiphenyl is powdery insoluble in the water and can be discharged into a centrifugal machine for recycling.
[ example 1 ]
The sublimated 4-bromodiphenyl oxide vacuum distillation flue gas absorbing device is matched with 900kg of vacuum distillation 4-bromodiphenyl oxide, the vacuum degree of a vacuum pump is 0.5kpa, and 3kg of 4-bromodiphenyl oxide is obtained after the sublimated flue gas of a distillation system is absorbed by water absorption liquid and the water absorption liquid is centrifugally separated.
The implementation steps are as follows:
1) Adding water into the sublimable 4-bromodiphenyl oxide decompression rectification flue gas absorption device, and checking the sealing of the upper cover of the tank body based on the condition that the water is lower than the check valve 7 and passes through the air outlet through hole 8;
2) The air inlet 1 is connected with a pipeline of the rectification system, and the air outlet 2 is connected with a pipeline of the vacuum pump system.
3) And starting a vacuum pump and a rectifying system to enable flue gas of the rectifying system to enter water at the lower part of the cavity steel structure 11, introducing the flue gas into water in the stainless steel tank 10 through the air outlet through hole 8, and finally entering the vacuum system from the air outlet 2.
4) After the rectification process is finished, the vacuum pump is closed to balance the air pressure of the rectification system, and the discharge valve 4 below the stainless steel tank body 10 is opened to discharge turbid water absorption liquid.
5) Separating the water absorption liquid by a centrifugal machine to obtain sublimated 4-bromodiphenyl.
Results of inspection in vacuum pump chamber: no solid biphenyl was attached.
[ example 2 ]
The sublimated 4-bromodiphenyl oxide vacuum distillation flue gas absorbing device is matched with 900kg of vacuum distillation diphenyl oxide, the vacuum degree of a vacuum pump is-0.1 kpa, and sublimated flue gas of a distillation system is absorbed by water absorption liquid, and the water absorption liquid is centrifugally separated to obtain 5kg of diphenyl oxide.
The procedure was the same as in example 1.
Results of inspection in vacuum pump chamber: no solid biphenyl was attached.
[ example 3 ]
By utilizing the sublimation-prone 4-bromodiphenyl vacuum rectification flue gas absorbing device, 900kg of vacuum rectification naphthalene is matched, the vacuum degree of a vacuum pump is-0.1 kpa, sublimation flue gas of a rectification system is absorbed by water absorption liquid, and 6kg of naphthalene is obtained after centrifugal separation of the water absorption liquid.
The procedure was the same as in example 1.
Results of inspection in vacuum pump chamber: no solid naphthalene was attached.
The utility model can also be applied to the absorption of anthracene, phenanthrene, carbazole, biphenyl, naphthalene and the like with high boiling point.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme and the concept of the present utility model, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides an easy sublimation 4-bromodiphenyl pressure reduction rectification flue gas absorbing device, its characterized in that includes the stainless steel jar body, cavity steel construction, check valve, the cavity steel construction sets up the inside at the stainless steel jar body, the upper end and the stainless steel jar body sealing connection of cavity steel construction, cavity steel construction bottom is equipped with the through-hole of giving vent to anger, also be equipped with the through-hole on the lateral wall of cavity steel construction, the check valve is installed to the through-hole on the cavity steel construction lateral wall, there is the flue gas absorption medium in the stainless steel jar body, the liquid level of flue gas absorption medium is less than the check valve.
2. The sublimable 4-bromodiphenyl oxide vacuum rectification flue gas absorber according to claim 1, wherein the flue gas absorbing medium is water.
3. The sublimable 4-bromodiphenyl oxide vacuum rectification flue gas absorbing device according to claim 1, wherein a stainless steel baffle is arranged in the cavity steel structure and above the check valve, and the stainless steel baffle is in semi-closed connection with the cavity steel structure, and an airflow channel is reserved.
4. The sublimable 4-bromodiphenyl oxide vacuum rectification flue gas absorber according to claim 3, wherein the number of the stainless steel baffles is 2, and the 2 stainless steel baffles are arranged in a staggered manner up and down.
5. The sublimable 4-bromodiphenyl oxide vacuum rectification flue gas absorbing device according to claim 1, wherein the stainless steel tank body is externally connected with a liquid level meter.
6. The sublimable 4-bromodiphenyl oxide vacuum rectification flue gas absorbing device according to claim 1, wherein the upper end of the stainless steel tank body is provided with a water inlet, an air outlet and an air inlet, the water inlet and the air outlet are arranged outside the cavity steel structure, the air inlet is arranged at the upper end of the cavity steel structure, and the bottom of the stainless steel tank body is provided with an outlet and a valve.
7. The sublimable 4-bromodiphenyl oxide vacuum rectification flue gas absorber according to claim 1, wherein a transparent sight glass is arranged on the side wall of the stainless steel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320792807.8U CN219784296U (en) | 2023-04-12 | 2023-04-12 | Decompression rectification flue gas absorption device of easy-sublimation 4-bromodiphenyl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320792807.8U CN219784296U (en) | 2023-04-12 | 2023-04-12 | Decompression rectification flue gas absorption device of easy-sublimation 4-bromodiphenyl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219784296U true CN219784296U (en) | 2023-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320792807.8U Active CN219784296U (en) | 2023-04-12 | 2023-04-12 | Decompression rectification flue gas absorption device of easy-sublimation 4-bromodiphenyl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219784296U (en) |
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- 2023-04-12 CN CN202320792807.8U patent/CN219784296U/en active Active
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