CN108916128A - A kind of phenol steam jet vacuum system - Google Patents
A kind of phenol steam jet vacuum system Download PDFInfo
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- CN108916128A CN108916128A CN201810558830.4A CN201810558830A CN108916128A CN 108916128 A CN108916128 A CN 108916128A CN 201810558830 A CN201810558830 A CN 201810558830A CN 108916128 A CN108916128 A CN 108916128A
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- injector
- level
- condenser
- steam
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
- F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B7/00—Combinations of two or more condensers, e.g. provision of reserve condenser
Abstract
The invention belongs to polycarbonate engineering device technique fields, and in particular to a kind of phenol steam jet vacuum system.A kind of phenol steam jet vacuum system of the present invention, applied in polycarbonate device, in the system, level-one injector 1, first-stage condenser 5, second level injector 2, three-level injector 4, three-level condenser 7 are linked in sequence, and two B grades of injector 3 is connected on secondary condenser 6.A kind of phenol steam jet vacuum system that the present invention records is steam jet vacuum system needed for during being suitable for polycarbonate production, and it can provide final minification the poly- novel device with vacuum degree needed for Prepolycondensating reactor simultaneously, it is reasonable in design, using safe, environmental pollution is small in production process, it can continually and steadily run, to guarantee that polycarbonate device is able to produce the excellent product of mass.
Description
Technical field
The invention belongs to polycarbonate engineering device technique fields, and in particular to a kind of phenol steam jet vacuum system.
Background technique
Vacuum system is a key components in polycarbonate (PC) device, is provided true required for polycondensation reaction
Altitude.Presently, there are the glycol steams for being applied to polyester (PET) device to spray vacuum system, and is applied to poly- to benzene
The butanediol steam jet vacuum system of dioctyl phthalate butanediol ester (PBT) device.
Above vacuum system can be only applied on specific device, and can only provide the vacuum of final polycondensation reactor
Degree, the vacuum degree of Prepolycondensating reactor need other equipment to provide.
Simultaneously because dielectric object gender gap used in vacuum system is larger, the freezing point of especially phenol is higher, so that
The development difficulty of phenol steam jet vacuum system is larger, does not have also disclosed technical solution to record and is suitable for polycarbonate device
In phenol steam jet vacuum system, also without the related introduction of phenol steam jet vacuum system.
Therefore, it needs to develop a kind of phenol steam jet vacuum system, during polycarbonate production is provided
Required vacuum environment fills up polycarbonate steam jet vacuum system blank.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of phenol steam jet vacuum systems, solve phenol solidification
Point is low, and physical property is complicated, applies the disadvantage that difficulty is larger in vacuum system.
In order to realize the purpose, the technical solution adopted by the present invention is that：
A kind of phenol steam jet vacuum system is applied in polycarbonate device, in the system, level-one injector, one
Grade condenser, second level injector, three-level injector, three-level condenser are linked in sequence, and two B grades of injector is connected to secondary condenser
On, specific connection relationship is as follows：
Wherein, the final minification polymers inflow entrance N1 of final polycondensation reactor, level-one adjust steam inlet N4 and level-one injector
Suction inlet connection, the vacuum degree of final polycondensation reactor is controlled by level-one injector；Non-condensable gas export in level-one injector
It is connect with the lower entrances of first-stage condenser；
The upper gas outlet of first-stage condenser is connect with the suction inlet of second level injector, the condensed fluid of first-stage condenser
Into liquid seal trough；
The lower entrances of the outlet of second level injector, the outlet of two B grades of injector and secondary condenser connect；
The prepolycondensate inflow entrance N2 of Prepolycondensating reactor, two B grades adjust steam inlet N5 and two B grades of injector sucking
Mouth connection passes through the vacuum degree that two B grades of injector controls Prepolycondensating reactor；
The top non-condensable gas export of secondary condenser is connect with the suction inlet of three-level injector, the condensation of secondary condenser
Liquid enters liquid seal trough；
The outlet of three-level injector is connect with the lower entrances of three-level condenser, the top mixed gas outlet of three-level condenser
N3 is connected to liquid rotary pump, and the condensed fluid of three-level condenser enters liquid seal trough.
Further, a kind of phenol steam jet vacuum system as described above, level-one injector, second level injector, two B
Grade injector, three-level injector working media are phenol steam.
Further, a kind of phenol steam jet vacuum system as described above, first-stage condenser, secondary condenser, three
Grade condenser working medium is liquid phenol.
Further, a kind of phenol steam jet vacuum system as described above, level-one injector, second level injector, two B
Grade injector, the inwardly projecting orifice of three-level injector, external cylinder are respectively provided with insulation jacket, and the heating agent being passed through in insulation jacket is gas
One of phase heating agent, liquid phase heating agent.
Further, a kind of phenol steam jet vacuum system as described above, first-stage condenser, secondary condenser, three
The cone fragment position of grade condenser is respectively provided with insulation jacket, and the heating agent being passed through in insulation jacket is one of gas phase heating agent, liquid phase heating agent.
Further, a kind of phenol steam jet vacuum system as described above, level-one injector adjust steam inlet and
Two B grades of injector adjusts steam inlet and is all connected with the steam for having identical parameters with power steam, and level-one injector passes through input
Steam adjusts the vacuum degrees of final polycondensation reactor needs, and two B grade injector adjust Prepolycondensating reactor by inputting steam
The vacuum degree needed.
Further, a kind of phenol steam jet vacuum system as described above, level-one injector suction inlet and two B grades draw
Emitter suction inlet is all connected with the steam for having identical parameters with power steam, and absolute pressure is 200~300Kpa.
Further, a kind of phenol steam jet vacuum system as described above, level-one injector, second level injector, two B
Grade injector, three-level injector are all made of special type type face nozzle, and first circular arc constitutes the throat of Laval-cavity nozzle, second circle
The expansion segment of arc composition Laval-cavity nozzle.
Further, a kind of phenol steam jet vacuum system as described above, power steam is taken in level-one injector
The final polycondensation reaction gas that band enters in receiving chamber enters first-stage condenser, after first-stage condenser spray condensation, fixed gas
Body enters secondary condenser through second level injector；Gas in Prepolycondensating reactor enters second level after two B grades of injector
Condenser, on-condensible gas enter three-level condenser by the extraction of three-level injector, and mixed gas is extracted out by liquid rotary pump.
A kind of phenol steam jet vacuum system that the present invention records is steaming needed for during being suitable for polycarbonate production
Vapour sprays vacuum system, and can provide final minification the poly- novel device with vacuum degree needed for Prepolycondensating reactor simultaneously, and structure is set
Rationally, use is safe, and environmental pollution is small in production process, can continually and steadily run, to guarantee polycarbonate device for meter
It is able to produce the excellent product of mass.Specific beneficial effect is：
1, stability
Injector cylinder of the invention, nozzle are and condenser cone section is equipped with insulation jacket, effectively prevent phenol from steaming
Vapour-liquid and the oligomer that may be carried solidification, plug nozzle, greatly extend the vacuum system continuous use time, drop simultaneously
Low frequency of maintenance and maintenance cost, enable the stable operation of polycarbonate device longer time, improve package unit
Stability.
2, vacuum degree control is simple
Level-one injector suction inlet of the present invention, two B grades of injector suction inlet poly-, the Prepolycondensating reactor phase with final minification respectively
Even, the poly- vacuum degree with Prepolycondensating reactor of final minification can be controlled respectively in a set of vacuum system.
3, it adjusts sensitive
Level-one injector entrance and two B grades of injector entrance connection of the invention has the steaming of identical parameters with power steam
Vapour can be passed through steam by level-one injector entrance and two B grades of injector entrance in package unit load variations, to adjust
Final polycondensation reactor and the vacuum degree needed with Prepolycondensating reactor.So that stable product quality.This regulative mode is sensitive, has
It imitates, is easily controllable.
4, production process environmental protection
Power steam and condenser liquid of the invention is all phenol, and every latter linked condenser of level-one injector can incite somebody to action
Most of phenol steam condenses out, and has both reduced the load of next stage injector, has saved the dosage of power steam, and can
It recycles.Phenol is recycled in the closed circuit, discharging of waste liquid is reduced, so that production process is more environmentally-friendly.
Detailed description of the invention
Fig. 1 is a kind of phenol steam jet vacuum system composition schematic diagram.
In figure, level-one injector 1；Second level injector 2；Two B grades of injector 3；Three-level injector 4；First-stage condenser 5；Two
Grade condenser 6；Three-level condenser 7.
Specific embodiment
Technical solution of the present invention is described in detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of phenol steam jet vacuum system of the present invention, is applied in polycarbonate device, the system
In, level-one injector 1, first-stage condenser 5, second level injector 2, three-level injector 4, three-level condenser 7 are linked in sequence, and two B grades
Injector 3 is connected on secondary condenser 6, and specific connection relationship is as follows：
Wherein, the final minification polymers inflow entrance N1 of final polycondensation reactor, level-one adjust steam inlet N4 and level-one injector 1
Suction inlet connection, the vacuum degree of final polycondensation reactor is controlled by level-one injector 1；On-condensible gas in level-one injector 1 goes out
Mouth is connect with the lower entrances of first-stage condenser 5；
The upper gas outlet of first-stage condenser 5 is connect with the suction inlet of second level injector 2, the condensation of first-stage condenser 5
Liquid enters liquid seal trough；
The outlet of second level injector 2, the outlet of two B grades of injector 3 are connect with the lower entrances of secondary condenser 6；
The prepolycondensate inflow entrance N2 of Prepolycondensating reactor, two B grades adjust steam inlet N5 and two B grades of injector 3 suction
Entrance connection, the vacuum degree of Prepolycondensating reactor is controlled by two B grades of injector 3；
The top non-condensable gas export of secondary condenser 6 is connect with the suction inlet of three-level injector 4, secondary condenser 6
Condensed fluid enters liquid seal trough；
The outlet of three-level injector 4 is connect with the lower entrances of three-level condenser 7, the top gaseous mixture of three-level condenser 7
Outlet N3 is connected to liquid rotary pump, and the condensed fluid of three-level condenser 7 enters liquid seal trough.
In the present embodiment：Level-one injector 1, second level injector 2,4 working media of three-level injector are phenol steam；One
Grade condenser 5, secondary condenser 6,7 working media of three-level condenser are liquid phenol；
Level-one injector 1, second level injector 2, the inwardly projecting orifice of three-level injector 4, external cylinder are respectively provided with insulation jacket,
The heating agent being passed through in insulation jacket is one of gas phase heating agent, liquid phase heating agent；
First-stage condenser 5, secondary condenser 6, three-level condenser 7 cone fragment position be respectively provided with insulation jacket, insulation jacket
In the heating agent that is passed through be one of gas phase heating agent, liquid phase heating agent；
1 suction inlet of level-one injector and two B grades of 3 suction inlet of injector are all connected with the steaming for having identical parameters with power steam
Vapour, level-one injector 1 adjust the vacuum degree of final polycondensation reactor needs by input steam, and two B grades of injector 3 passes through input
Steam come adjust Prepolycondensating reactor needs vacuum degree；
Level-one injector 1, second level injector 2, three-level injector 4 are all made of special type type face nozzle, and first circular arc is constituted
The throat of Laval-cavity nozzle, second circular arc constitute the expansion segment of Laval-cavity nozzle.
The final polycondensation reaction gas that power steam is carried along into receiving chamber in level-one injector 1 enters first-stage condenser
5, after the spray condensation of first-stage condenser 5, on-condensible gas enters secondary condenser 6 through second level injector 2；Prepolymerization reaction
Gas in device enters secondary condenser 6 after two B grades of injector 3, and on-condensible gas enters three by the extraction of three-level injector 4
Grade condenser 7, mixed gas is extracted out by liquid rotary pump.
Claims (10)
1. a kind of phenol steam jet vacuum system is applied in polycarbonate device, it is characterised in that：
In the system, level-one injector (1), first-stage condenser (5), second level injector (2), three-level injector (4), three-level condensation
Device (7) is linked in sequence, and two B grades of injector (3) is connected on secondary condenser (6), and specific connection relationship is as follows：
Wherein, the final minification polymers inflow entrance N1 of final polycondensation reactor, level-one adjust the suction of steam inlet N4 and level-one injector (1)
Entrance connection, the vacuum degree of final polycondensation reactor is controlled by level-one injector (1)；On-condensible gas in level-one injector (1)
Outlet is connect with the lower entrances of first-stage condenser (5)；
First-stage condenser (5) upper gas outlet connect with the suction inlet of second level injector (2), first-stage condenser (5) it is cold
Lime set body enters liquid seal trough；
The outlet of second level injector (2), the outlet of two B grades of injector (3) are connect with the lower entrances of secondary condenser (6)；
The prepolycondensate inflow entrance N2 of Prepolycondensating reactor, two B grades adjust steam inlet N5 and two B grades of injector (3) sucking
Mouth connection passes through the vacuum degree that two B grades of injector (3) controls Prepolycondensating reactor；
The top non-condensable gas export of secondary condenser (6) is connect with the suction inlet of three-level injector (4), secondary condenser (6)
Condensed fluid enter liquid seal trough；
The outlet of three-level injector (4) is connect with the lower entrances of three-level condenser (7), the top mixing of three-level condenser (7)
Gas outlet N3 is connected to liquid rotary pump, and the condensed fluid of three-level condenser (7) enters liquid seal trough.
2. a kind of phenol steam jet vacuum system as described in claim 1, it is characterised in that：Level-one injector (1), second level
Injector (2), two B grades of injector (3), three-level injector (4) working media are phenol steam.
3. a kind of phenol steam jet vacuum system as described in claim 1, it is characterised in that：First-stage condenser (5), second level
Condenser (6), three-level condenser (7) working media are liquid phenol.
4. a kind of phenol steam jet vacuum system as described in claim 1, it is characterised in that：Level-one injector (1), second level
Injector (2), two B grades of injector (3), the inwardly projecting orifice of three-level injector (4), external cylinder are respectively provided with insulation jacket, keep the temperature
The heating agent being passed through in collet is one of gas phase heating agent, liquid phase heating agent.
5. a kind of phenol steam jet vacuum system as described in claim 1, it is characterised in that：First-stage condenser (5), second level
Condenser (6), three-level condenser (7) cone fragment position be respectively provided with insulation jacket, the heating agent being passed through in insulation jacket is gas phase heat
One of matchmaker, liquid phase heating agent.
6. a kind of phenol steam jet vacuum system as described in claim 1, it is characterised in that：Level-one injector (1) is adjusted
Steam inlet and two B grades of injector (3) adjust steam inlet and are all connected with the steam for having identical parameters with power steam, and level-one is drawn
Emitter (1) adjusts the vacuum degree of final polycondensation reactor needs by input steam, and two B grades of injector (3) passes through input steam
To adjust the vacuum degree of Prepolycondensating reactor needs.
7. a kind of phenol steam jet vacuum system as claimed in claim 6, it is characterised in that：Level-one injector (1) sucking
Mouthful and two B grade injector (3) suction inlet be all connected with the steam with power steam with identical parameters, absolute pressure for 200~
300Kpa。
8. a kind of phenol steam jet vacuum system as described in claim 1, it is characterised in that：Level-one injector (1), second level
Injector (2), two B grades of injector (3), three-level injector (4) are all made of special type type face nozzle, and first circular arc constitutes daraf(reciprocal of farad) that
The throat of nozzle, second circular arc constitute the expansion segment of Laval-cavity nozzle.
9. a kind of phenol steam jet vacuum system as described in claim 1, it is characterised in that：Level-one injector (1), second level
Injector (2), three-level injector (4) working media are phenol steam；
First-stage condenser (5), secondary condenser (6), three-level condenser (7) working media are liquid phenol；
Level-one injector (1), second level injector (2), the inwardly projecting orifice of three-level injector (4), external cylinder are respectively provided with thermal insulation clamp
It covers, the heating agent being passed through in insulation jacket is one of gas phase heating agent, liquid phase heating agent；
First-stage condenser (5), secondary condenser (6), three-level condenser (7) cone fragment position be respectively provided with insulation jacket, thermal insulation clamp
The heating agent being passed through in set is one of gas phase heating agent, liquid phase heating agent；
Level-one injector (1) suction inlet and two B grades of injector (3) suction inlet are all connected with the steaming for having identical parameters with power steam
Vapour, level-one injector (1) adjust the vacuum degree of final polycondensation reactor needs by input steam, and two B grades of injector (3) passes through
Steam is inputted to adjust the vacuum degree of Prepolycondensating reactor needs；
Level-one injector (1), second level injector (2), three-level injector (4) are all made of special type type face nozzle, first circular arc structure
At the throat of Laval-cavity nozzle, second nozzle constitutes the expansion segment of Laval-cavity nozzle.
10. a kind of phenol steam jet vacuum system as claimed in claim 9, it is characterised in that：In level-one injector (1)
The final polycondensation reaction gas that power steam is carried along into receiving chamber enters first-stage condenser (5), sprays by first-stage condenser (5)
After leaching condensation, on-condensible gas enters secondary condenser (6) through second level injector (2)；Gas in Prepolycondensating reactor passes through
Two B grades of injector (3) enters secondary condenser (6) afterwards, and on-condensible gas enters three-level condenser by three-level injector (4) extraction
(7), mixed gas is extracted out by liquid rotary pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810558830.4A CN108916128A (en) | 2018-06-01 | 2018-06-01 | A kind of phenol steam jet vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810558830.4A CN108916128A (en) | 2018-06-01 | 2018-06-01 | A kind of phenol steam jet vacuum system |
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| Publication Number | Publication Date |
|---|---|
| CN108916128A true CN108916128A (en) | 2018-11-30 |
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ID=64418126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810558830.4A Pending CN108916128A (en) | 2018-06-01 | 2018-06-01 | A kind of phenol steam jet vacuum system |
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| Country | Link |
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| CN (1) | CN108916128A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961033A (en) * | 2019-12-09 | 2020-04-07 | 中国石油天然气集团有限公司 | High-stability high-vacuum method and high-vacuum system suitable for polycarbonate production |
| CN111298717A (en) * | 2019-12-09 | 2020-06-19 | 中国石油天然气集团有限公司 | Anti-blocking high vacuum method and high vacuum system suitable for polycarbonate production |
| CN114772674A (en) * | 2022-05-09 | 2022-07-22 | 南京工业大学 | Low-carbon running saline wastewater treatment system and method applying solar energy and loop heat pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201326587Y (en) * | 2008-12-25 | 2009-10-14 | 无锡四方电炉有限公司 | Vacuumizing device for smelting |
| CN201358966Y (en) * | 2009-02-27 | 2009-12-09 | 鞍山创新实业有限公司 | Steam-jet vacuum pump |
| CN101624980A (en) * | 2009-08-08 | 2010-01-13 | 杭州华达喷射真空设备有限公司 | Butanediol spraying vacuum pump and working method thereof |
| CN202431625U (en) * | 2012-01-17 | 2012-09-12 | 杭州华达喷射真空设备有限公司 | Vacuum pump for ejecting butanediol |
| CN102767543A (en) * | 2012-08-07 | 2012-11-07 | 杭州杭真真空工程技术有限公司 | Polyester vacuum set |
| CN207122449U (en) * | 2017-07-28 | 2018-03-20 | 江苏和时利新材料股份有限公司 | Energy-saving vacuum system |
-
2018
- 2018-06-01 CN CN201810558830.4A patent/CN108916128A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201326587Y (en) * | 2008-12-25 | 2009-10-14 | 无锡四方电炉有限公司 | Vacuumizing device for smelting |
| CN201358966Y (en) * | 2009-02-27 | 2009-12-09 | 鞍山创新实业有限公司 | Steam-jet vacuum pump |
| CN101624980A (en) * | 2009-08-08 | 2010-01-13 | 杭州华达喷射真空设备有限公司 | Butanediol spraying vacuum pump and working method thereof |
| CN202431625U (en) * | 2012-01-17 | 2012-09-12 | 杭州华达喷射真空设备有限公司 | Vacuum pump for ejecting butanediol |
| CN102767543A (en) * | 2012-08-07 | 2012-11-07 | 杭州杭真真空工程技术有限公司 | Polyester vacuum set |
| CN207122449U (en) * | 2017-07-28 | 2018-03-20 | 江苏和时利新材料股份有限公司 | Energy-saving vacuum system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961033A (en) * | 2019-12-09 | 2020-04-07 | 中国石油天然气集团有限公司 | High-stability high-vacuum method and high-vacuum system suitable for polycarbonate production |
| CN111298717A (en) * | 2019-12-09 | 2020-06-19 | 中国石油天然气集团有限公司 | Anti-blocking high vacuum method and high vacuum system suitable for polycarbonate production |
| CN111298717B (en) * | 2019-12-09 | 2023-10-31 | 中国石油天然气集团有限公司 | Anti-blocking high vacuum method and high vacuum system suitable for polycarbonate production |
| CN110961033B (en) * | 2019-12-09 | 2023-12-29 | 中国石油天然气集团有限公司 | High-stability high-vacuum method and high-vacuum system suitable for polycarbonate production |
| CN114772674A (en) * | 2022-05-09 | 2022-07-22 | 南京工业大学 | Low-carbon running saline wastewater treatment system and method applying solar energy and loop heat pipe |
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Application publication date: 20181130 |