CN206315771U - A kind of back flow reaction kettle for being used to prepare glyceryl triacetate - Google Patents
A kind of back flow reaction kettle for being used to prepare glyceryl triacetate Download PDFInfo
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- CN206315771U CN206315771U CN201621371660.1U CN201621371660U CN206315771U CN 206315771 U CN206315771 U CN 206315771U CN 201621371660 U CN201621371660 U CN 201621371660U CN 206315771 U CN206315771 U CN 206315771U
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- reactor
- reaction kettle
- surge tank
- back flow
- feed pipe
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model provides a kind of back flow reaction kettle for being used to prepare glyceryl triacetate, the return duct being connected including reactor, with reactor, the return duct is connected with condenser, and the reactor is connected with pressure surge tank, and relief valve is provided between reactor and pressure surge tank；The pressure surge tank is connected to tail gas absorber, and tail gas absorber is connected with air-introduced machine；Glycerine feed pipe and methyl acetate feed pipe are provided with the top of the reactor, the glycerine feed pipe and methyl acetate feed pipe are equipped with flow valve；The reactor bottom is provided with discharge nozzle.Back flow reaction kettle of the present utility model is used to prepare glyceryl triacetate, and security is good, can prevent that inflammable gas is leaked in building-up process, reduces potential safety hazard.
Description
Technical field
The utility model is related to a kind of back flow reaction kettle for being used to prepare glyceryl triacetate, belongs to chemical industry synthesis equipment skill
Art field.
Background technology
Back flow reaction kettle is a kind of conventional organic synthesis equipment, when synthesizing glyceryl triacetate with new technology, is used
Raw material be methyl acetate and glycerine, wherein methyl acetate is volatile, with inflammability and toxicity, can also be produced in course of reaction
Methanol.If there is potential safety hazard using conventional reactor in above-mentioned synthesis.In addition, due to reacting kettle inner pressure in building-up process,
Reflux is likely to result in because vapour lock is present and can not smoothly flow back.
Utility model content
In order to solve the above problems, the utility model provides a kind of back flow reaction for being used to prepare glyceryl triacetate
Kettle, concrete technical scheme is：
It is a kind of to be used to preparing the back flow reaction kettle of glyceryl triacetate, including reactor, the return duct that is connected with reactor,
The return duct is connected with condenser, and the reactor is connected with pressure surge tank, is provided between reactor and pressure surge tank
Relief valve；The pressure surge tank is connected to tail gas absorber, and tail gas absorber is connected with air-introduced machine；Set at the top of the reactor
There are glycerine feed pipe and methyl acetate feed pipe, the glycerine feed pipe and methyl acetate feed pipe are equipped with flow valve；It is described
Reactor bottom is provided with discharge nozzle.
Further, the pressure surge tank is connected with return duct, and tie point is located at before condenser.
Further, the first valve is provided between the pressure surge tank and return duct.
Further, the second valve is provided between the pressure surge tank and tail gas absorber.
Further, the reactor top is provided with seal closure, and seal closure is connected with tail gas absorber.
Further, the reactor is provided with heating jacket.
Beneficial point of the present utility model is：Back flow reaction kettle of the present utility model is used to prepare glyceryl triacetate, pacifies
Good perfection, can prevent that inflammable gas is leaked in building-up process, reduces potential safety hazard, can also be after completion of the synthesis to reactor
Interior tail gas carries out absorption processing, reduces toxic gas pollution.This programme can solve in building-up process return duct due to gas simultaneously
The problem of resistance can not smoothly flow back.
Concrete operating principle is, for the glycerine and methyl acetate as synthesis material respectively by glycerine feed pipe and acetic acid
Methyl esters feed pipe enters reactor, is reacted in reactor；Due to the methanol boiling produced in methyl acetate and course of reaction
Point is relatively low, and reaction temperature is higher, and the organic volatiles such as methyl acetate and methanol can be produced in course of reaction, and volatile matter enters back
Flow tube, the utilization of reactor interior circulation is back to after condensed device condensation；When reacting kettle inner pressure rise, and exceed setting for relief valve
During level pressure force value, relief valve carries out pressure release, and pressure surge tank is stored to pressure, keeps reacting kettle inner pressure stable, backflow
Pipe can smoothly flow back；Into the organic volatile in pressure surge tank can by the control of the first valve or the second valve,
Condensing reflux is carried out into return duct, or is handled into tail gas absorber；On reactor top, seal closure is set, can be with
Processing is collected to inflammable gas when gas leakage occurs for reactor, accident is prevented.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, any modifications, equivalent substitutions and improvements made etc., it should be included in of the present utility model
Within protection domain.
A kind of back flow reaction kettle for being used to prepare glyceryl triacetate as shown in Figure 1, including reactor 1 and reactor 1
The return duct 6 of connection, the return duct 6 is connected with condenser 7, and the reactor 1 is connected with pressure surge tank 5, reactor 1 with
Relief valve 13 is provided between pressure surge tank 5；The pressure surge tank 5 is connected to tail gas absorber 8, and tail gas absorber 8 is connected
There is air-introduced machine 9；The top of reactor 1 is provided with glycerine feed pipe 2 and methyl acetate feed pipe 3, the glycerine feed pipe 2 and second
Sour methyl esters feed pipe 3 is equipped with flow valve 4；The bottom of reactor 1 is provided with discharge nozzle 12.
The pressure surge tank 5 is connected with return duct 6, and tie point is located at before condenser 7.
The first valve 11 is provided between the pressure surge tank 5 and return duct 6.
The second valve 10 is provided between the pressure surge tank 5 and tail gas absorber 8.
The top of reactor 1 is provided with seal closure 13, and seal closure 13 is connected with tail gas absorber 8.
The reactor 1 is provided with heating jacket.
Back flow reaction kettle of the present utility model is used to prepare glyceryl triacetate, and security is good, can prevent building-up process
Middle inflammable gas leakage, reduces potential safety hazard, can also carry out absorption processing to the tail gas in reactor after completion of the synthesis, subtract
Rare poison gas body pollution.This programme can solve in building-up process return duct due to the problem of vapour lock can not smoothly flow back simultaneously.
Concrete operating principle is, for the glycerine and methyl acetate as synthesis material respectively by glycerine feed pipe and acetic acid
Methyl esters feed pipe enters reactor, is reacted in reactor；Methyl acetate and methanol etc. can be produced in course of reaction organic
Volatile matter, volatile matter enters return duct, and the utilization of reactor interior circulation is back to after condensed device condensation；When reacting kettle inner pressure liter
Height, and when exceeding the setup pressure value of relief valve, relief valve carries out pressure release, pressure surge tank is stored to pressure, keeps anti-
Pressure stability in kettle is answered, return duct can smoothly flow back；It can pass through the first valve into the organic volatile in pressure surge tank
Or second valve control, carry out condensing reflux into return duct, or being handled into tail gas absorber；In reactor
Top sets seal closure, can occur to be collected inflammable gas processing during gas leakage in reactor, prevent accident.
Claims (6)
1. it is used to preparing the back flow reaction kettle of glyceryl triacetate a kind of, including reactor, the return duct that is connected with reactor, institute
State return duct and be connected with condenser, it is characterised in that：The reactor is connected with pressure surge tank, reactor and pressure surge tank
Between be provided with relief valve；The pressure surge tank is connected to tail gas absorber, and tail gas absorber is connected with air-introduced machine；The reaction
Glycerine feed pipe and methyl acetate feed pipe are provided with the top of kettle, the glycerine feed pipe and methyl acetate feed pipe are equipped with flow
Valve；The reactor bottom is provided with discharge nozzle.
2. the back flow reaction kettle according to claim 1 for being used to prepare glyceryl triacetate, it is characterised in that：The pressure
Surge tank is connected with return duct, and tie point is located at before condenser.
3. the back flow reaction kettle according to claim 2 for being used to prepare glyceryl triacetate, it is characterised in that：The pressure
The first valve is provided between surge tank and return duct.
4. the back flow reaction kettle according to claim 3 for being used to prepare glyceryl triacetate, it is characterised in that：The pressure
The second valve is provided between surge tank and tail gas absorber.
5. the back flow reaction kettle according to claim 1 for being used to prepare glyceryl triacetate, it is characterised in that：The reaction
Kettle top is provided with seal closure, and seal closure is connected with tail gas absorber.
6. the back flow reaction kettle according to claim 1 for being used to prepare glyceryl triacetate, it is characterised in that：The reaction
Kettle is provided with heating jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621371660.1U CN206315771U (en) | 2016-12-14 | 2016-12-14 | A kind of back flow reaction kettle for being used to prepare glyceryl triacetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621371660.1U CN206315771U (en) | 2016-12-14 | 2016-12-14 | A kind of back flow reaction kettle for being used to prepare glyceryl triacetate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206315771U true CN206315771U (en) | 2017-07-11 |
Family
ID=59267227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621371660.1U Expired - Fee Related CN206315771U (en) | 2016-12-14 | 2016-12-14 | A kind of back flow reaction kettle for being used to prepare glyceryl triacetate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206315771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570099A (en) * | 2017-09-28 | 2018-01-12 | 上海国强生化工程装备有限公司 | A kind of tank pressure control device of parallel reactor |
-
2016
- 2016-12-14 CN CN201621371660.1U patent/CN206315771U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570099A (en) * | 2017-09-28 | 2018-01-12 | 上海国强生化工程装备有限公司 | A kind of tank pressure control device of parallel reactor |
| CN107570099B (en) * | 2017-09-28 | 2023-08-25 | 上海国强生化工程装备有限公司 | Tank pressure control device of parallel reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20171214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |