CN206396087U - A kind of DMF reactors indirect type heat-exchanger rig - Google Patents
A kind of DMF reactors indirect type heat-exchanger rig Download PDFInfo
- Publication number
- CN206396087U CN206396087U CN201621338821.7U CN201621338821U CN206396087U CN 206396087 U CN206396087 U CN 206396087U CN 201621338821 U CN201621338821 U CN 201621338821U CN 206396087 U CN206396087 U CN 206396087U
- Authority
- CN
- China
- Prior art keywords
- reactor
- dmf
- reactors
- heat exchanger
- indirect type
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of DMF reactors indirect type heat-exchanger rig, it is characterised in that including DMF reactors, cooler of reactor, Intermediate Heat Exchanger, middle tank, the hot water circulating pump being sequentially connected.The utility model is designed based on indirect type heat exchange principle, it is different from the device that current domestic cycle water is directly cooled down, avoid recirculated water fouling between reactor Tube Sheet of Heat Exchanger in production process, the problem of heat transfer effect is gradually reduced can guarantee that the device that reactor heat exchanger is run steadily in the long term there is provided a kind of.
Description
Technical field
The utility model is related to a kind of DMF reactors indirect type heat-exchanger rig, is used for chemical production field.
Background technology
Current DMF productions uses " CO one-step method " technology.DMF reactions are exothermic reactions, to ensure that reaction temperature is stable,
Partial reaction heat need to be removed from reactor.Current country DMF devices remove the mode of heat using outside reactor
Cooler exchanges heat with recirculated water.Usual Inlet Temperature of Circulating Water is 70 DEG C, 3 DEG C of temperature rise after heat exchange.Because circulating water temperature is higher,
Gradually in cooler of reactor tube wall incrustation in production process, cooling effect is gradually deteriorated, and causes reaction mass temperature to rise.Such as
The relatively low circulating water of fruit temperature in use, reaction mass can gradually be crystallized in cooler of reactor tube wall, block tubulation, just
Normal reaction temperature will be unable to maintain.Therefore need to develop a kind of coolant water temperature still cooling system of non-scaling more than 70 DEG C.
The content of the invention
The purpose of this utility model is to provide a kind of DMF reactors indirect type heat-exchanger rig, condensed with the steam of cleaning
Liquid is carrier, is exchanged heat by steam condensate and reaction mass, stable reaction mass temperature, then is cooled with circulating water steam condensation
Liquid, heat is taken away.Steam condensate impurity content is seldom, even if temperature is not easy to more than 70 DEG C in exchanger tube wall knot
Dirt.Steam condensate is cooled with circulating water, control circulating water temperature is no more than 42 DEG C, also will not be in Intermediate Heat Exchanger tube wall knot
Dirt.This indirect type heat exchange mode can ensure the long-period stable operation of DMF reaction units.
To achieve these goals, the technical solution of the utility model is as follows：
The utility model discloses a kind of DMF reactors indirect type heat-exchanger rig, including be sequentially connected DMF reactors,
Reactor cycles pump, cooler of reactor, Intermediate Heat Exchanger, middle tank, hot water circulating pump；The Intermediate Heat Exchanger recirculated water
Upper water sets self-adjusting valve, cooler of reactor and Intermediate Heat Exchanger steam condensate outlet to set thermometer, middle tank to set
Liquid level gauge.
In one embodiment of the present utility model, the hot water circulating pump as described in right 1, it is characterised in that also connect successively
Take back cooler of reactor.
The utility model is based on the characteristics of steam condensate is less scaling, cools down reaction mass by steam condensate, follows
Ring water cooling steam condensate, so as to realize cooler of reactor non-scaling, reaction temperature is steady, and the stable long period of production is continuous
The purpose of operation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
In order that technological means of the present utility model, creation characteristic, reached purpose and effect are easy to understand, tie below
Close specific embodiment and the utility model is expanded on further.
As shown in figure 1, a kind of DMF reactors indirect type heat-exchanger rig, including：DMF reactors 1, reactor cycles pump 2,
Cooler of reactor 3, Intermediate Heat Exchanger 4, middle tank 5, hot water circulating pump 6, cooler of reactor steam condensate outlet temperature
Degree meter 7, Intermediate Heat Exchanger steam condensate outlet thermometer 8, water self-adjusting valve 9, middle tank liquid on Intermediate Heat Exchanger recirculated water
Position meter 10.
Utility model works flow is：By system Lai steam condensate be introduced into middle tank 5, treat that liquid level gauge 10 refers to
Show and reach more than 80% stopping plus steam condensate.Start hot water circulating pump 6, the steam condensate of middle tank is followed through superheated water
Exchanged heat after the pressurization of ring pump into reactor heat exchanger 3, temperature is increased to 73 DEG C from 70 DEG C.From the reactant of DMF reactors 1
Material, enters cooler of reactor 3 after being pressurizeed by reactor cycles pump 2, DMF reactors is returned to after cooling so that in reactor
Temperature of charge is maintained at 120 DEG C.The steam condensate come from cooler of reactor enters Intermediate Heat Exchanger 4, is arrived by circulating water
Middle tank 5 is returned after 70 DEG C.Water is adjusted by regulating valve 9 on the recirculated water of Intermediate Heat Exchanger 4, it is ensured that go out Intermediate Heat Exchanger
4 steam condensate temperature 7 is 70 DEG C, and the temperature rise of recirculated water backwater is no more than 10 DEG C, and temperature is no more than 42 DEG C, and recirculated water is in centre
The tube wall non flouling behaviour of heat exchanger 4.Steam condensate closed cycle during normal production, steam condensate is rushed without continuous benefit.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply principle of the present utility model, the utility model also has respectively on the premise of the utility model spirit and scope are not departed from
Changes and improvements are planted, these changes and improvements are both fallen within the range of claimed the utility model.The utility model requirement
Protection domain is defined by appended claims and its equivalent.
Claims (2)
1. a kind of DMF reactors indirect type heat-exchanger rig, including DMF reactors, reactor cycles pump, the reactor being sequentially connected
Cooler, Intermediate Heat Exchanger, middle tank, hot water circulating pump；Cooler of reactor and the Intermediate Heat Exchanger steam condensate
Outlet sets thermometer；The middle tank is provided with liquid level gauge；Water is provided with regulating valve on the Intermediate Heat Exchanger recirculated water.
2. a kind of DMF reactors indirect type heat-exchanger rig as claimed in claim 1, it is characterised in that the hot water circulating pump is again
It is connected with cooler of reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621338821.7U CN206396087U (en) | 2016-12-08 | 2016-12-08 | A kind of DMF reactors indirect type heat-exchanger rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621338821.7U CN206396087U (en) | 2016-12-08 | 2016-12-08 | A kind of DMF reactors indirect type heat-exchanger rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206396087U true CN206396087U (en) | 2017-08-11 |
Family
ID=59509455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621338821.7U Active CN206396087U (en) | 2016-12-08 | 2016-12-08 | A kind of DMF reactors indirect type heat-exchanger rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206396087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106025A (en) * | 2022-05-30 | 2022-09-27 | 安阳九天精细化工有限责任公司 | Environment-friendly and energy-saving production device and production method of dimethylformamide |
-
2016
- 2016-12-08 CN CN201621338821.7U patent/CN206396087U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106025A (en) * | 2022-05-30 | 2022-09-27 | 安阳九天精细化工有限责任公司 | Environment-friendly and energy-saving production device and production method of dimethylformamide |
| CN115106025B (en) * | 2022-05-30 | 2023-08-18 | 安阳九天精细化工有限责任公司 | Environment-friendly and energy-saving dimethylformamide production device and production method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204042829U (en) | High-temperature molten salt steam generation and pre-heating system | |
| CN206184428U (en) | Reaction material's cooling control system | |
| CN205011733U (en) | Novel making wine equipment | |
| CN206019378U (en) | A kind of vapor-water heat exchanger with hydrophobic cooling section | |
| CN206396087U (en) | A kind of DMF reactors indirect type heat-exchanger rig | |
| CN203352851U (en) | Water circulating cooling apparatus for induction heating equipment | |
| CN202066096U (en) | Supercritical direct air-cooling heat-supply network drainage system of heat supply unit | |
| CN208313072U (en) | Aluminium oxide calcining process flue gas waste heat recovery system | |
| CN206897397U (en) | A kind of reactor with condensing unit | |
| CN202802797U (en) | Negative pressure steam heating equipment | |
| CN203271829U (en) | Double-power ORC power generation system | |
| CN207501715U (en) | A kind of condensing unit improved structure | |
| CN202339122U (en) | Gas cooling device | |
| CN104748192B (en) | A kind of portable phase-transition heat-storage heat supply intelligent device | |
| CN206404756U (en) | A kind of multi-function outer circulation kettle system | |
| CN207745852U (en) | A kind of methane chloride reaction heat treatment system | |
| CN206310577U (en) | Smeltery's low temperature exhaust heat recovery system | |
| CN205980858U (en) | Vertical high -efficient vapour water containing amasss formula heat exchanger | |
| CN204211667U (en) | For the hot water circulation bucket that refined naphthalene is produced | |
| CN205308311U (en) | Environmental protection electricity heating jacket reation kettle | |
| CN206310939U (en) | A kind of double-refrigerant separate heat pipe flue gas waste heat recovery apparatus | |
| CN206056383U (en) | A kind of heat exchanger circulation | |
| CN204911485U (en) | Reaction kettle device of high -efficient fast speed adjusting accuse temperature | |
| CN209940963U (en) | Distillation equipment with low refrigerant consumption | |
| CN213643167U (en) | Crystallization kettle device in production of cosmetic-grade nicotinamide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 713100 Shaanxi city of Xingping province Dongcheng District Yingbin Avenue Patentee after: Shaanxi extends oil Xinghua Chemical Co., Ltd. Address before: 713100 Yingbin Road, Xingping, Shaanxi, Xianyang, Dongcheng District Patentee before: Shaanxi extends oil Xinghua Chemical Co., Ltd. |