CN207493655U - Isocyanates reaction kettle feed pipe structure - Google Patents
Isocyanates reaction kettle feed pipe structure Download PDFInfo
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- CN207493655U CN207493655U CN201721568583.3U CN201721568583U CN207493655U CN 207493655 U CN207493655 U CN 207493655U CN 201721568583 U CN201721568583 U CN 201721568583U CN 207493655 U CN207493655 U CN 207493655U
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- feed pipe
- reaction kettle
- nitrogen
- isocyanates reaction
- isocyanates
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Abstract
The utility model is related to a kind of isocyanates reaction kettle feed pipe structure, the isocyanates reaction kettle including being equipped with feed pipe, feed pipe is used for the transferring raw material polyalcohol into isocyanates reaction kettle, it is characterised in that：The feed pipe is equipped with a flanged pipe close to the series connection of the position of isocyanates reaction kettle, and flanged pipe side wall is equipped with nitrogen tube, and nitrogen tube tilts down setting and its nitrogen injection direction is set towards at the nozzle of feed pipe；The structure design of the utility model is reasonable, by the way that nitrogen tube is combined with feed pipe, in raw polyol injection process is carried out at the same time nitrogen and pours and protected, avoid raw polyol and condensed at feed pipe nozzle, reduce maintenance cost.
Description
Technical field
The utility model is related to technical field of chemical more particularly to a kind of isocyanates reaction kettle feed pipe structures.
Background technology
At present in isocyanate production processes, need that raw polyol is pumped into reaction kettle by feed pipe, simultaneously
Nitrogen is poured in reaction kettle to be protected, nitrogen is injected by individual pipeline in reaction kettle top other positions at present, still
The connectivity part inside feed pipe and reaction kettle since nitrogen protection is insufficient, leads to part material polyalcohol in feed pipe nozzle
Place's condensation, for a long time can be to blocking at feed pipe nozzle, and current method for maintaining is needed under reaction kettle slack tank state to charging
Cutting and elimination is carried out at nozzle, expends a large amount of manpower and materials.
Invention content
In order to solve deficiency of the prior art, the purpose of this utility model is to provide one kind can prevent raw material polynary
The isocyanates reaction kettle feed pipe structure of alcohol condensation.
Technical solution is used by the utility model solves its technical problem：
A kind of isocyanates reaction kettle feed pipe structure, the isocyanates reaction kettle including being equipped with feed pipe, charging are effective
In the transferring raw material polyalcohol into isocyanates reaction kettle, it is characterised in that：The feed pipe is close to isocyanates reaction kettle
Position series connection is equipped with a flanged pipe, and flanged pipe side wall is equipped with nitrogen tube, and nitrogen tube tilts down setting and its nitrogen injection side
It is set to the nozzle towards feed pipe.
The nitrogen tube is used to connect with nitrogen pressure storage tank.
The beneficial effects of the utility model are：It is reasonable in design, it is more in raw material by the way that nitrogen tube is combined with feed pipe
Nitrogen is carried out at the same time in first alcohol injection process pours and protected, avoid raw polyol and condensed at feed pipe nozzle, drop
Low maintenance cost.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the cross-sectional view of the utility model.
Fig. 3 is nitrogen tube and the attachment structure schematic diagram of nitrogen pressure storage tank.
In figure：1 feed pipe, 2 flanged pipes, 3 nitrogen tubes, 4 isocyanates reaction kettles, 5 nitrogen pressure storage tanks, 6 switch valves.
Specific embodiment
Illustrate the embodiment of the utility model by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
As shown in Figure 1：A kind of isocyanates reaction kettle feed pipe structure, the isocyanates including being equipped with feed pipe 1 react
Kettle 4, feed pipe 1 enter isocyanates reaction kettle 4 for transferring raw material polyalcohol, wherein：
Close to the position of isocyanates reaction kettle 4, series connection is equipped with a flanged pipe 2 to the feed pipe 1, and 2 both ends of flanged pipe pass through
It is tightly connected at gasket and the upper and lower nozzle of feed pipe 1,2 side wall of flanged pipe is equipped with nitrogen tube 3, and nitrogen tube 3 is welded in advance
Processing is on flanged pipe 2, and nitrogen tube 3 tilts down setting and its nitrogen injection direction is set towards at the nozzle of feed pipe 1, nitrogen
Tracheae 3 and the angle of flanged pipe 2 are 30 degree；
When in use, transferring raw material polyalcohol, while the supplying nitrogen into feed pipe 1 of nitrogen tube 3 are used in feed pipe 1,
Collect sufficient nitrogen at the nozzle of feed pipe 1 to protect raw polyol, make raw polyol will not be in feed pipe 1
It is condensed at nozzle, avoids the upkeep operation in later stage.
For the nitrogen tube 3 for being connect with nitrogen pressure storage tank 5, nitrogen tube 3 is equipped with switch valve 6, passes through nitrogen pressure
Nitrogen is delivered in isocyanates reaction kettle 4 by 5 pressure itself of storage tank.
The foregoing is merely the preferred embodiments of the utility model, as long as realizing the utility model with essentially identical means
Purpose technical solution, belong within the scope of protection of the utility model.
Claims (2)
1. a kind of isocyanates reaction kettle feed pipe structure, the isocyanates reaction kettle including being equipped with feed pipe, feed pipe are used for
The transferring raw material polyalcohol into isocyanates reaction kettle, it is characterised in that：The feed pipe is close to the position of isocyanates reaction kettle
It puts series connection and is equipped with a flanged pipe, flanged pipe side wall is equipped with nitrogen tube, and nitrogen tube tilts down setting and its nitrogen injection direction
It is set at towards the nozzle of feed pipe.
2. isocyanates reaction kettle feed pipe structure according to claim 1, it is characterised in that：The nitrogen tube be used for
Nitrogen pressure storage tank connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721568583.3U CN207493655U (en) | 2017-11-15 | 2017-11-15 | Isocyanates reaction kettle feed pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721568583.3U CN207493655U (en) | 2017-11-15 | 2017-11-15 | Isocyanates reaction kettle feed pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207493655U true CN207493655U (en) | 2018-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721568583.3U Active CN207493655U (en) | 2017-11-15 | 2017-11-15 | Isocyanates reaction kettle feed pipe structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207493655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110695478A (en) * | 2019-09-24 | 2020-01-17 | 大族激光科技产业集团股份有限公司 | Send a gas blowing device |
| CN111964440A (en) * | 2020-08-07 | 2020-11-20 | 新兴铸管股份有限公司 | Dry ball feeding device of strip smelting furnace |
-
2017
- 2017-11-15 CN CN201721568583.3U patent/CN207493655U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110695478A (en) * | 2019-09-24 | 2020-01-17 | 大族激光科技产业集团股份有限公司 | Send a gas blowing device |
| CN111964440A (en) * | 2020-08-07 | 2020-11-20 | 新兴铸管股份有限公司 | Dry ball feeding device of strip smelting furnace |
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