CN201902825U - Liquid ammonia vaporizing device for producing 3-cyanopyridine - Google Patents
Liquid ammonia vaporizing device for producing 3-cyanopyridine Download PDFInfo
- Publication number
- CN201902825U CN201902825U CN 201020595597 CN201020595597U CN201902825U CN 201902825 U CN201902825 U CN 201902825U CN 201020595597 CN201020595597 CN 201020595597 CN 201020595597 U CN201020595597 U CN 201020595597U CN 201902825 U CN201902825 U CN 201902825U
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- China
- Prior art keywords
- ammonia
- kettle
- liquid ammonia
- outlet
- kettle body
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a liquid ammonia vaporizing device for producing 3-cyanopyridine, comprising a kettle body. The innovative points of the liquid ammonia vaporizing device are as follows: the kettle body is provided with a heating medium inlet and a heating medium outlet; the kettle body is internally provided with at least a group of spiral coil pipes; a liquid ammonia inlet communicated with the bottom ends of the coil pipes is arranged at the bottom of the kettle body; and an ammonia outlet communicated with the tops of the coil pipes is arranged at the top of the kettle body, and is provided with a flow valve. The liquid ammonia vaporizing device has the advantages that liquid ammonia enters the coil pipes by the liquid ammonia inlet at the bottom of the valve body, is vaporized in the kettle body under the action of heating media in the kettle body, and enters a reaction kettle for producing the 3-cyanopyridine by the ammonia outlet at the top ends of the coil pipes, the pressure of ammonia is stable, and the flow valve arranged on the ammonia outlet can control the flow of the ammonia introduced into the reaction kettle.
Description
Technical field
The utility model relates to a kind of vaporizing unit, particularly a kind of 3-cyanopyridine production liquefied ammonia vaporizing unit.
Background technique
The 3-cyanopyridine is the intermediate that is used to make medicine, food additive, feed additive, agricultural chemicals etc.In the production technology of 3-cyanopyridine, must in reactor, inject ammonia, traditional ammonia injection device is that liquid ammonia storage tank inserts reactor by pipeline, establishes heat water-spraying's head on liquid ammonia storage tank.It exists shortcoming to be: the pressure of ammonia is uncontrollable, and liquid ammonia storage tank must with the reactor close together, have bigger potential safety hazard.
The model utility content
The technical problems to be solved in the utility model provides a kind of 3-cyanopyridine production liquefied ammonia vaporizing unit, can produce the ammonia that reactor provides steady pressure to the 3-cyanopyridine, and the safety coefficient height.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of 3-cyanopyridine production liquefied ammonia vaporizing unit, comprise kettle, and its innovative point is: have the outlet of heat medium import and heat medium on the described kettle; At least be provided with one group of helical coil pipe in the kettle, described autoclave body bottom is provided with the liquefied ammonia import that is communicated with the coil pipe bottom, and the kettle top is provided with the ammonia outlet that is communicated with the coil pipe top; Flow valve is installed on the ammonia outlet.
Advantage of the present utility model is: liquefied ammonia enters in the coil pipe by the liquefied ammonia import of valve body bottom, in kettle, vaporize under the effect of heat medium, ammonia outlet by the coil pipe top enters 3-cyanopyridine production reactor, ammonia pressure is stable, and the Flow valve of installing on the ammonia outlet can be controlled the ammonia flow that feeds in the reactor.
Description of drawings
Accompanying drawing is the utility model 3-cyanopyridine production liquefied ammonia vaporizing unit structural representation.
Embodiment
As shown in drawings, comprise kettle 1, heat medium import 2, heat medium outlet 3, coil pipe 4, liquefied ammonia import 5, ammonia outlet 6.
Above-mentioned kettle 1 sidewall bottom has the heat medium import 2 that is communicated with the kettle inner chamber, and top side wall has heat medium outlet 3.
Be provided with at least one group of helical coil pipe 4 in the kettle 1, liquefied ammonia import 5 is located at kettle 1 bottom, is communicated with each coil pipe 4 bottom, and ammonia outlet 6 is located at kettle 1 top, is communicated with each group coil pipe 4 top.On the ammonia outlet 6 Flow valve is installed.
Claims (1)
1. 3-cyanopyridine production liquefied ammonia vaporizing unit comprises kettle, it is characterized in that: have the outlet of heat medium import and heat medium on the described kettle; At least be provided with one group of helical coil pipe in the kettle, described autoclave body bottom is provided with the liquefied ammonia import that is communicated with the coil pipe bottom, and the kettle top is provided with the ammonia outlet that is communicated with the coil pipe top; Flow valve is installed on the ammonia outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020595597 CN201902825U (en) | 2010-11-08 | 2010-11-08 | Liquid ammonia vaporizing device for producing 3-cyanopyridine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020595597 CN201902825U (en) | 2010-11-08 | 2010-11-08 | Liquid ammonia vaporizing device for producing 3-cyanopyridine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902825U true CN201902825U (en) | 2011-07-20 |
Family
ID=44273419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020595597 Expired - Fee Related CN201902825U (en) | 2010-11-08 | 2010-11-08 | Liquid ammonia vaporizing device for producing 3-cyanopyridine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224077A (en) * | 2017-11-30 | 2018-06-29 | 丹阳市利旺车辆部件有限公司 | A kind of flat wound shape vaporizer for LNG gas cylinders |
-
2010
- 2010-11-08 CN CN 201020595597 patent/CN201902825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224077A (en) * | 2017-11-30 | 2018-06-29 | 丹阳市利旺车辆部件有限公司 | A kind of flat wound shape vaporizer for LNG gas cylinders |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20151108 |
|
| EXPY | Termination of patent right or utility model |