CN108325232A - One kind prevents material from polymerizeing novel reboiler - Google Patents
One kind prevents material from polymerizeing novel reboiler Download PDFInfo
- Publication number
- CN108325232A CN108325232A CN201810436959.8A CN201810436959A CN108325232A CN 108325232 A CN108325232 A CN 108325232A CN 201810436959 A CN201810436959 A CN 201810436959A CN 108325232 A CN108325232 A CN 108325232A
- Authority
- CN
- China
- Prior art keywords
- connecting plate
- range hood
- shell
- heating tube
- polymerizeing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000005493 welding type Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 44
- 238000003756 stirring Methods 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000002309 gasification Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000006116 polymerization reaction Methods 0.000 abstract description 6
- 238000004939 coking Methods 0.000 abstract description 5
- 230000013011 mating Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- AGSPXMVUFBBBMO-UHFFFAOYSA-N beta-aminopropionitrile Chemical compound NCCC#N AGSPXMVUFBBBMO-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
- B01D3/322—Reboiler specifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01B—BOILING; BOILING APPARATUS ; EVAPORATION; EVAPORATION APPARATUS
- B01B1/00—Boiling; Boiling apparatus for physical or chemical purposes ; Evaporation in general
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses one kind to prevent material from polymerizeing novel reboiler,Including range hood,Air inlet tube,Outlet tube and shell in the range hood side is set,It is fixedly connected with air inlet tube at the top of the range hood,The bottom of the range hood is equipped with outlet tube,The right end of the range hood is equipped with the first connecting plate by the connection type of welding,The intermediate position of first connecting plate and one end of demarcation strip are welded,Position is welded among the left end inner wall of the other end of the demarcation strip and the range hood,Range hood described in the divides is the first inlet chamber,Second into chamber,First connecting plate is fixedly connected by fastening bolt with the second connecting plate,The configuration of the present invention is simple,It is convenient and practical,Pass through range hood,Shell,First set of heat exchange tubes,The mating connection of second set of heat exchange tubes,It is poor to solve existing reboiler storeroom heat-transfer effect,Because local temperature height is easy to happen polymerization,The problem of coking phenomenon.
Description
Technical field：
The present invention relates to technical field of rectification, and in particular to a kind of new method for preventing material from polymerizeing novel reboiler.
Background technology：
Reboiler is widely used general in chemical plant, and reboiler (also referred to as reboiler) can be such that liquid vaporizes again, be one
It is a to exchange heat, while a kind of special heat exchanger of gasifying liquid；Mostly shared with fractionating column；Material is heated swollen in reboiler
Swollen or even vaporization, density becomes smaller, and to leave vaporization space, smoothly returns in tower.After long-time service, object is had in heat exchanger tube
Material dirt, when dirty layer is more and more thicker, production efficiency reduces, or even causes halt production accident.For heated easy polymeric type material, in reality
Material polymerization occurs in the production process of border, coking can increase the probability that safety accident occurs.Horizontal reboiler is general in industry at present
All over the structure using heat exchanger tube circular layout, tube spacing is excessively intensive, and storeroom heat-transfer effect is poor, and thermo-responsive class is easily polymerize
Material brings security risk because local temperature height is easy to happen polymerization, coking phenomenon to manufacturing enterprise and operating personnel, for
The problem above present invention is proposed a kind of new method for preventing material from polymerizeing novel reboiler.
Invention content：
A kind of simple in structure technical problem to be solved by the present invention lies in providing, practical and convenient, having prevents material poly-
The novel reboiler of the advantages of conjunction.
The technical problems to be solved by the invention are realized using technical solution below：One kind prevents material polymerization novel
Reboiler, including range hood, air inlet tube, outlet tube and shell in the range hood side is set, the range hood
Top is fixedly connected with air inlet tube, and the bottom of the range hood is equipped with outlet tube, the company that the right end of the range hood passes through welding
The mode of connecing is equipped with the first connecting plate, and the intermediate position of first connecting plate and one end of demarcation strip are welded, the demarcation strip
The other end and the range hood left end inner wall among position weld, range hood described in the divides is the first air inlet
Chamber, second are into chamber, and first connecting plate is fixedly connected by fastening bolt with the second connecting plate, second connecting plate and institute
The port welding machine of shell is stated, the first heating tube group, the second heating tube group, one end of first heating tube are equipped in the shell
Sequentially pass through second connecting plate, first connecting plate is connected to the inlet chamber, the other end of first heating tube
Sequentially pass through second connecting plate, first connecting plate is connected to the outlet chamber, one end of second heating tube according to
It is secondary to be connected to the inlet chamber through second connecting plate, first connecting plate, the other end of second heating tube according to
Secondary to be connected to the outlet chamber through second connecting plate, first connecting plate, the top of the shell, which is equipped with, to be gasified
The bottom of pipe, the shell is equipped with liquefaction outlet pipe.
Preferably, the end of the shell is equipped with fixed plate, the top bolt of the fixed plate by welding
Positive and negative motor is connected, the positive and negative motor is connect by shaft coupling with link rotatable, and the end of the connecting rod extends to the shell
The inside in internal portion, the connecting rod is fixedly connected with stirring rod.
Preferably, the shell inside interval be arranged two vertical supporting racks, the first heating tube group with it is described
Second heating tube group extends through support frame as described above.
Preferably, the first heating tube group is located at the inside of the second heating tube group.
Preferably, gasket is equipped between the head rod and second connecting rod.
Preferably, the thickness of the stirring blade is gradually incremented by by a lateral other side and the both sides of the stirring blade are consolidated
Fixed connection stirring jaw.
Preferably, the cross section of the range hood is rectangle, and the first connecting rod is with the second connecting rod about described point
Partition board is symmetrical arranged.
The beneficial effects of the invention are as follows：The configuration of the present invention is simple, it is convenient and practical, pass through range hood, shell, the first heat exchanger tube
The mating connection of group, the second set of heat exchange tubes, the first connecting plate, it is poor to solve existing reboiler storeroom heat-transfer effect, for
The thermo-responsive easy polymer material of class, the problem of being easy to happen polymerization, coking phenomenon because of local temperature height, when the present invention is by material rectifying
Between shorten, improve product yield, heat exchanger tube cleans the frequency and reduces, and the end of shell is equipped with positive and negative motor, the positive and negative motor
Output end connects stirring rod, collision of the water to heating inside pipe wall of liquefying by the rotation of stirring rod and in rotary course, with
And in shell liquid due to movement to tying the microseism power of thermotube wall so that heating tube wall can not form dirt, shell it is interior
Two vertical supporting racks are arranged in portion interval, have the function of stabilization, equipped with close between the second connecting rod described in head rod
Packing has sealing, closely effect.
Description of the drawings：
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the cross-section diagram of range hood of the present invention；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 4 is the structural schematic diagram of stirring rod of the present invention；
Fig. 5 is the front view of stirring rod of the present invention；
Wherein：1- range hoods；2- air inlet tubes；The first connecting plates of 3-；The second connecting plates of 4-；5- fastening bolts；6- shells；
7- the first heating tube groups；The first support plates of 8-；9- the second heating tube groups；10- gasification outlet pipes；11- stirring blades；12- connecting rods；
13- shaft couplings；14- motors；15- demarcation strips；16- outlet tubes；The second support plates of 17-；18- gaskets；19- liquefaction outlet pipes；20-
Gasket；21- fixed plates；101- inlet chambers；102- outlet chambers；1101- stirs jaw.
Specific implementation mode：
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Embodiment 1
Such as Fig. 1, shown in Fig. 2, one kind prevents material from polymerizeing novel reboiler, including range hood (1), air inlet tube (2), goes out
Liquid pipe (16) and setting the range hood (1) side shell (6), it is characterised in that：The top of the range hood (1) is solid
Surely the bottom of connection air inlet tube (2), the range hood (1) is equipped with outlet tube (16), and the right end of the range hood (1) passes through weldering
The connection type connect is equipped with the first connecting plate (3), the one end at the intermediate position and demarcation strip (15) of first connecting plate (3)
Position is welded among welding, the other end of the demarcation strip (15) and the left end inner wall of the range hood (1), the demarcation strip
(15) the separation range hood (1) is the first inlet chamber (101), second into chamber (102), and first connecting plate (3) is by tight
Fixing bolt (3) is fixedly connected with the second connecting plate (4), the port welding machine of second connecting plate (4) and the shell (6), institute
It states and is equipped with the first heating tube group (7), the second heating tube group (9) in shell (6), one end of first heating tube (7) is passed through successively
Wear second connecting plate (4), first connecting plate (3) is connected to the inlet chamber (101), first heating tube (7)
The other end sequentially pass through second connecting plate (4), first connecting plate (3) is connected to the outlet chamber (102), described
One end of second heating tube (9) sequentially passes through second connecting plate (4), first connecting plate (3) and the inlet chamber
(101) it is connected to, the other end of second heating tube (9) sequentially passes through second connecting plate (4), first connecting plate
(3) it is connected to the outlet chamber (102), the top of the shell (6) is equipped with gasification outlet pipe (10), the bottom of the shell (6)
Equipped with liquefaction outlet pipe (19), two vertical supporting racks (8), first heating tube is arranged in the inside interval of the shell (6)
Group (7) extends through support frame as described above (8) with the second heating tube group (9), has the function of stabilization, first heating tube
Group (7) is located at the inside of the second heating tube group (9), is equipped between head rod (3) second connecting rod (4)
Gasket (18), has sealing, a closely effect, and the cross section of the range hood (1) is rectangle, the first connecting rod (3) and
The second connecting rod (4) is symmetrical arranged about the demarcation strip (15), and the configuration of the present invention is simple is convenient and practical, passes through range hood
1, shell 6, the mating connection of the first set of heat exchange tubes 7, the second set of heat exchange tubes 9, the first connecting plate 3, solve existing reboiler
Storeroom heat-transfer effect is poor, for the easy polymer material of thermo-responsive class, because local temperature height is easy to happen polymerization, coking phenomenon is asked
Topic, the present invention shorten the material rectifying time, improve product yield, and heat exchanger tube cleans the frequency and reduces.
The present embodiment opens vacuum pump using β-aminopropionitrile as raw material by β-aminopropionitrile 4000L input reboilers,
Collect 110~130 DEG C/10kpa fractions, when temperature reaches 130 DEG C, stop steam, for ensure reboiler heat exchanger tube be in liquid level with
Under, surplus material volume is 800-1000L in distillation control reboiler for the first time.Second of charging 4000L, operating condition is constant,
It is 800-1000L to control surplus material volume in reboiler.Third time charging 400L, operating condition is constant, works as reboiler temperature
Reach 135~155 DEG C of rectifying to terminate.Rectifying used time and quantum of output see the table below：
Three crowdes of rectifying total amount of feeding 12000L, amounting to 23.9 hours used times, 36.1 hours total used times reduced 12.2 compared with before-improvement
Hour, the residual night 600L of rectifying less 400L of 1000L compared with before-improvement.
Embodiment 2
Such as Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, one kind prevents material from polymerizeing novel reboiler, including range hood 1, air inlet tube
2, outlet tube 16 and shell 6 in 1 side of range hood is set, it is characterised in that：The top of range hood 1 is fixedly connected with air inlet connecting
The bottom of pipe 2, range hood 1 is equipped with outlet tube 16, and the right end of range hood 1 is equipped with the first connecting plate by the connection type of welding
3, the intermediate position of the first connecting plate 3 is welded with one end of demarcation strip 15, in the other end of demarcation strip 15 and the left end of range hood 1
Position welding among wall, it is the first inlet chamber 101, second into chamber 102 that demarcation strip 15, which separates range hood 1, and the first connecting plate 3 passes through
Fastening bolt 3 is fixedly connected with the second connecting plate 4, the port welding machine of the second connecting plate 4 and shell 6, and being equipped with first in shell 6 adds
One end of heat pipe heat 7, the second heating tube group 9, the first heating tube 7 sequentially passes through the second connecting plate 4, the first connecting plate 3 and air inlet
Chamber 101 is connected to, and the other end of the first heating tube 7 sequentially passes through the second connecting plate 4, the first connecting plate 3 is connected to outlet chamber 102,
One end of second heating tube 9 sequentially passes through the second connecting plate 4, the first connecting plate 3 is connected to inlet chamber 101, the second heating tube 9
The other end sequentially passes through the second connecting plate 4, the first connecting plate 3 is connected to outlet chamber 102, and the top of shell 6 is equipped with gasification outlet pipe
10, the bottom of shell 6 is equipped with liquefaction outlet pipe 19, and the end of shell 6 is equipped with fixed plate 21, fixed plate 21 by welding
Top bolt connect positive and negative motor 14, positive and negative motor 14 passes through shaft coupling 13 and is rotatablely connected with connecting rod 12, the end of connecting rod 12
Extending to shell, (inside 6, the inside of connecting rod 12 is fixedly connected with stirring rod 11, and two vertical branch are arranged in the inside interval of shell 6
Support 8, the first heating tube group 7 and the second heating tube group 9 extend through supporting rack 8, and the first heating tube group 7 is located at the second heating tube
9 inside is organized, gasket 18 is equipped between 3 second connecting rod 4 of head rod, the thickness of stirring blade 11 is lateral another by one
Side is gradually incremented by and the both sides of stirring blade 11 are fixedly connected with stirring jaw 1101, and the cross section of range hood 1 is rectangle, and first connects
Bar 3 is symmetrical arranged with second connecting rod 4 about demarcation strip 15.Liquefy water pair by the rotation of stirring rod 11 and in rotary course
Heat inside pipe wall collision and shell in liquid due to movement to tie thermotube wall microseism power so that heating tube wall without
Method forms dirt.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. one kind prevents material from polymerizeing novel reboiler, including range hood (1), air inlet tube (2), outlet tube (16) and setting
Shell (6) in the range hood (1) side, it is characterised in that：It is fixedly connected with air inlet tube at the top of the range hood (1)
(2), the bottom of the range hood (1) is equipped with outlet tube (16), and the right end of the range hood (1) is pacified by the connection type of welding
Equipped with the first connecting plate (3), the intermediate position of first connecting plate (3) is welded with one end of demarcation strip (15), the separation
Position is welded among the other end of plate (15) and the left end inner wall of the range hood (1), is changed described in demarcation strip (15) separation
Gas hood (1) is the first inlet chamber (101), second into chamber (102), and first connecting plate (3) passes through fastening bolt (3) and second
Connecting plate (4) is fixedly connected, the port welding machine of second connecting plate (4) and the shell (6), is equipped in the shell (6)
First heating tube group (7), the second heating tube group (9), one end of first heating tube (7) sequentially pass through second connecting plate
(4), first connecting plate (3) is connected to the inlet chamber (101), and the other end of first heating tube (7) sequentially passes through
Second connecting plate (4), first connecting plate (3) are connected to the outlet chamber (102), second heating tube (9)
One end sequentially passes through second connecting plate (4), first connecting plate (3) is connected to the inlet chamber (101), and described second
The other end of heating tube (9) sequentially passes through second connecting plate (4), first connecting plate (3) and the outlet chamber (102)
The top of connection, the shell (6) is equipped with gasification outlet pipe (10), and the bottom of the shell (6) is equipped with liquefaction outlet pipe (19).
2. one kind according to claim 1 prevents material from polymerizeing novel reboiler, it is characterised in that：The shell (6)
End is equipped with fixed plate (21) by welding, and the top bolt of the fixed plate (21) connects positive and negative motor (14),
The positive and negative motor (14) is rotatablely connected by shaft coupling (13) and connecting rod (12), and the end of the connecting rod (12) extends to described
((6) are internal, and the inside of the connecting rod (12) is fixedly connected with stirring rod (11) for shell.
3. one kind according to claim 1 prevents material from polymerizeing novel reboiler, it is characterised in that：The shell (6)
Two vertical supporting racks (8) of inside interval setting, the first heating tube group (7) and the second heating tube group (9) difference
Through support frame as described above (8).
4. one kind according to claim 1 prevents material from polymerizeing novel reboiler, it is characterised in that：First heating tube
Group (7) is located at the inside of the second heating tube group (9).
5. one kind according to claim 1 prevents material from polymerizeing novel reboiler, it is characterised in that：The head rod
(3) gasket (18) is equipped between second connecting rod (4).
6. one kind according to claim 2 prevents material from polymerizeing novel reboiler, it is characterised in that：The stirring blade
(11) thickness is gradually incremented by by a lateral other side and the both sides of the stirring blade (11) are fixedly connected with stirring jaw
(1101)。
7. one kind according to claim 1 prevents material from polymerizeing novel reboiler, it is characterised in that：The range hood (1)
Cross section be rectangle, the first connecting rod (3) and the second connecting rod (4) are symmetrical arranged about the demarcation strip (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810436959.8A CN108325232B (en) | 2018-05-09 | 2018-05-09 | Novel reboiler for preventing material from polymerizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810436959.8A CN108325232B (en) | 2018-05-09 | 2018-05-09 | Novel reboiler for preventing material from polymerizing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108325232A true CN108325232A (en) | 2018-07-27 |
| CN108325232B CN108325232B (en) | 2023-12-22 |
Family
ID=62934685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810436959.8A Active CN108325232B (en) | 2018-05-09 | 2018-05-09 | Novel reboiler for preventing material from polymerizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108325232B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5330624A (en) * | 1991-12-27 | 1994-07-19 | Phillips Petroleum Company | Fractionator-reboiler sludge removal system and method |
| EP1046416A2 (en) * | 1999-04-23 | 2000-10-25 | Nippon Shokubai Co., Ltd. | Method for preventing polymerization in thin-film type evaporating device |
| CN2897370Y (en) * | 2006-04-13 | 2007-05-09 | 杨国华 | Central pipe falling-film dry-pan re-boiler for producing oxygen-18 by reduced-pressure rectification |
| CN202376772U (en) * | 2011-12-08 | 2012-08-15 | 江苏沿江化工资源开发研究院有限公司 | Vertical coil pipe and clamping sleeve combined reboiler |
| CN106267858A (en) * | 2016-08-30 | 2017-01-04 | 安徽安特食品股份有限公司 | A kind of Alcohol Production difficulty fouling reboiler |
| CN206746020U (en) * | 2017-03-28 | 2017-12-15 | 湖北宏嘉化工股份有限公司 | A kind of durable type reboiler of industrial production |
| CN208448684U (en) * | 2018-05-09 | 2019-02-01 | 安庆市鑫富化工有限责任公司 | One kind prevents material from polymerizeing novel reboiler |
-
2018
- 2018-05-09 CN CN201810436959.8A patent/CN108325232B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5330624A (en) * | 1991-12-27 | 1994-07-19 | Phillips Petroleum Company | Fractionator-reboiler sludge removal system and method |
| EP1046416A2 (en) * | 1999-04-23 | 2000-10-25 | Nippon Shokubai Co., Ltd. | Method for preventing polymerization in thin-film type evaporating device |
| CN2897370Y (en) * | 2006-04-13 | 2007-05-09 | 杨国华 | Central pipe falling-film dry-pan re-boiler for producing oxygen-18 by reduced-pressure rectification |
| CN202376772U (en) * | 2011-12-08 | 2012-08-15 | 江苏沿江化工资源开发研究院有限公司 | Vertical coil pipe and clamping sleeve combined reboiler |
| CN106267858A (en) * | 2016-08-30 | 2017-01-04 | 安徽安特食品股份有限公司 | A kind of Alcohol Production difficulty fouling reboiler |
| CN206746020U (en) * | 2017-03-28 | 2017-12-15 | 湖北宏嘉化工股份有限公司 | A kind of durable type reboiler of industrial production |
| CN208448684U (en) * | 2018-05-09 | 2019-02-01 | 安庆市鑫富化工有限责任公司 | One kind prevents material from polymerizeing novel reboiler |
Non-Patent Citations (1)
| Title |
|---|
| 金宇;曹锋州;: "真空精馏高沸点热敏性物质中降膜再沸器的优化设计", 广州化工, no. 15, pages 195 - 198 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108325232B (en) | 2023-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216986316U (en) | Gas-liquid shunting external circulation evaporator | |
| CN201386075Y (en) | Multi-variety asphalt production device | |
| CN208448684U (en) | One kind prevents material from polymerizeing novel reboiler | |
| CN108325232A (en) | One kind prevents material from polymerizeing novel reboiler | |
| CN114432726B (en) | Thermal coupling rectifying tower | |
| CN109157859B (en) | Fatty acid vacuum distillation tower | |
| CN107400538B (en) | A kind of coking, absorbing and stabilizing technique and system | |
| CN117164042A (en) | Horizontal tube falling film evaporator | |
| CN110551513A (en) | Multi-pipe-layer asphalt falling film cooler and asphalt cooling forming process applying same | |
| CN216230346U (en) | Film line cooling circulation system for BOPP film production | |
| CN109022625A (en) | A method of producing the D-Psicose of concentration | |
| CN211601640U (en) | Double-tube-plate double-tube-layer asphalt falling film cooler and cooling system thereof | |
| CN206168416U (en) | Purification device of o dichlorobenzene mother liquor during solid purple RL produces forever | |
| CN208620881U (en) | A kind of Modular plate-type air cooler | |
| CN210220732U (en) | Composite plate type condensation cooler | |
| CN209166145U (en) | A kind of glass pipe bundle condenser | |
| CN209706607U (en) | Heat-exchanger rig for alkylated reaction distillation system | |
| CN105694737A (en) | Distiller with corrugated surface for turpentine | |
| CN207769232U (en) | A kind of new and effective thin film evaporator | |
| CN219783827U (en) | High-efficiency distiller | |
| CN218306247U (en) | Naphthalene oil extraction device for coal tar distillation | |
| CN110433519A (en) | A kind of return-flow system and method for distilling tower top | |
| CN218106780U (en) | Boiling device for liquefied natural gas processing | |
| CN103611489A (en) | Multifunctional heat transfer separation unit | |
| CN110906760B (en) | Double-tube-plate double-tube-layer asphalt falling film cooler and cooling system and process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |