CN215691836U - Novel chloroethylene liquid monomer feeding and dewatering device - Google Patents
Novel chloroethylene liquid monomer feeding and dewatering device Download PDFInfo
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- CN215691836U CN215691836U CN202121474150.8U CN202121474150U CN215691836U CN 215691836 U CN215691836 U CN 215691836U CN 202121474150 U CN202121474150 U CN 202121474150U CN 215691836 U CN215691836 U CN 215691836U
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Abstract
The application discloses novel liquid monomer feeding dehydration of chloroethylene device, liquid monomer of chloroethylene gets into solid alkali desicator through low tower charge pump, through the drying action of solid alkali desicator, absorb the moisture that contains in the liquid monomer of chloroethylene, form dry liquid monomer of chloroethylene and alkali lye, dry liquid monomer of chloroethylene gets into the low boiling tower through the inlet pipe, alkali lye passes through the bin outlet and gets into in the alkali lye collection tank, the rethread is carried alkali lye to centralized processing in alkali lye circulation tank and the waste water jar rather than the alkali lye delivery pump that is connected. The liquid vinyl chloride monomer is dried by the solid alkali dryers, the original characteristics of the liquid vinyl chloride monomer are guaranteed, the two solid alkali dryers can also be used for standby, the problem that the liquid vinyl chloride monomer is not dehydrated and directly enters a rectification process through a side pipeline due to repair, the water content of vinyl chloride gas produced by a rectification system is seriously exceeded, and the product quality of subsequent resin paste is improved.
Description
Technical Field
The application relates to the field of chemical industry, especially, relate to a novel liquid monomer feeding dehydration of chloroethylene device.
Background
In the actual production process of the paste resin, the liquid vinyl chloride monomer needs to be dried and then enters a low-boiling tower for reaction, wherein the drying degree of the liquid vinyl chloride monomer determines the quality of the paste resin, so that the liquid vinyl chloride monomer needs to be subjected to a vinyl chloride temperature-changing dehydration procedure for removing water before entering the low-boiling tower.
The temperature-changing dehydration device is high in investment, and is usually put into a set of temperature-changing dehydration device, but some fault problems can occur during operation and need to be repaired, and chloroethylene liquid monomer in the system needs to be drained during repair, so that a bypass pipeline is arranged on a pipeline of the dehydration device, the chloroethylene liquid monomer enters a rectification system through the bypass pipeline, the water content of chloroethylene gas produced in the rectification system is seriously exceeded, and the production quality of subsequent paste resin is influenced.
Therefore, it is urgently needed to add a dehydration device in front of the low-boiling tower to dry the liquid vinyl chloride monomer so as to prevent the liquid vinyl chloride monomer containing water from entering the low-boiling tower.
SUMMERY OF THE UTILITY MODEL
The application provides a novel liquid monomer feeding dehydration device of chloroethylene, has solved among the prior art because of the part thick liquid monomer of chloroethylene does not dewater and directly gets into the rectification process through the by-pass valve, and influences the product quality's of follow-up paste resin problem.
In order to solve the technical problem, the present application provides a novel chloroethylene liquid monomer feeding and dewatering device, include:
a feed pump, an outlet close to the feed pump is connected with a first guide pipe, one end of the first guide pipe is connected with a first three-way connecting pipe, two ends of the first three-way connecting pipe are respectively connected with a first solid caustic soda dryer and a second solid caustic soda dryer, the first solid caustic soda dryer and the second solid caustic soda dryer are connected in parallel, an outlet close to the first solid caustic soda dryer is connected with a first feed pipe, an outlet close to the second solid caustic soda dryer is connected with a second feed pipe, one end of the first feed pipe and one end of the second feed pipe are jointly connected with a second three-way connecting pipe, the first feed pipe and the second feed pipe are both provided with a water content meter, one end of the second three-way connecting pipe is connected with a low boiling tower, a discharge port of the first solid caustic soda dryer is provided with a first alkali conveying pipe, and a discharge port of the second solid caustic soda dryer is provided with a second alkali conveying pipe, the one end of first defeated alkali pipe with the one end of defeated alkali pipe of second is connected with third tee junction pipe jointly, the one end of third tee junction pipe is connected with alkali lye collecting tank, the exit of alkali lye collecting tank is connected with the alkali lye delivery pump, the export department of alkali lye delivery pump is provided with the defeated alkali pipe of third, the one end of defeated alkali pipe of third is provided with the fourth tee junction pipe, two ends of fourth tee junction pipe are connected with alkali lye circulation tank and waste water tank respectively.
Preferably, the first three-way connecting pipe is connected with the first solid caustic soda dryer through a second material guiding pipe, and a first electromagnetic induction valve is arranged on the second material guiding pipe in a connecting manner.
Preferably, the first three-way connecting pipe is connected with the second solid caustic soda dryer through a third material guiding pipe, and a second electromagnetic induction valve is arranged on the third material guiding pipe in a connecting manner.
Preferably, the first solid caustic soda dryer and the second solid caustic soda dryer are both vertical solid caustic soda dryers.
Preferably, each of the first feeding pipe and the second feeding pipe is further provided with a pressure gauge.
Preferably, a remote controller is further arranged on the alkali liquor conveying pump.
Compared with the prior art, the utility model provides a novel liquid monomer feeding dewatering device of chloroethylene, liquid monomer of chloroethylene gets into solid alkali desicator through low tower charge pump, through the drying action of solid alkali desicator, absorb the moisture that contains in the liquid monomer of chloroethylene, form dry liquid monomer of chloroethylene and alkali lye, dry liquid monomer of chloroethylene passes through the inlet pipe and gets into the low boiling tower, alkali lye passes through the bin outlet and gets into in the alkali lye collection tank, the rethread is rather than the alkali lye delivery pump of being connected with alkali lye transport to alkali lye circulation tank and waste water tank in centralized processing. The liquid vinyl chloride monomer is dried by the solid alkali dryers, the original characteristics of the liquid vinyl chloride monomer are guaranteed, the two solid alkali dryers can also be used for standby, the problem that the liquid vinyl chloride monomer is not dehydrated and directly enters a rectification process through a side pipeline due to repair, the water content of vinyl chloride gas produced by a rectification system is seriously exceeded, and the product quality of subsequent resin paste is improved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without making any inventive changes.
FIG. 1 is a schematic structural diagram of a novel feeding and dewatering device for liquid vinyl chloride monomer provided by the present invention;
FIG. 2 is a schematic diagram of a water content meter according to the present invention.
In the figure, 1 is a feed pump, 2 is a first material guide pipe, 3 is a first three-way connecting pipe, 4 is a first solid caustic soda dryer, 5 is a second solid caustic soda dryer, 6 is a first material feed pipe, 7 is a second material feed pipe, 8 is a second three-way connecting pipe, 9 is a water content measuring meter, 10 is a low boiling tower, 11 is a first alkali conveying pipe, 12 is a second alkali conveying pipe, 13 is a third three-way connecting pipe, 14 is an alkali liquor collecting tank, 15 is an alkali liquor conveying pump, 16 is a third alkali conveying pipe, 17 is a fourth three-way connecting pipe, 18 is an alkali liquor circulating tank, 19 is a waste water tank, 20 is a second material guide pipe, 21 is a third material guide pipe, 22 is a third material feed pipe, 23 is a first electromagnetic induction valve, 24 is a second electromagnetic induction valve, 25 is a pressure meter, 26 is a remote controller, 27 is a fourth alkali conveying pipe, 28 is a fifth alkali conveying pipe, 29 is a sixth alkali conveying pipe, and 30 is a seventh alkali conveying pipe.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings.
The core of this application is to provide a novel liquid monomer feeding dewatering device of chloroethylene, can solve because of the part thick liquid monomer of chloroethylene does not dewater and directly gets into the rectification process through the by-pass valve, and influences the problem of follow-up paste resin's product quality.
Fig. 1 is a schematic structural view of a novel feeding and dewatering device for vinyl chloride liquid monomer provided by the present invention, fig. 2 is a schematic structural view of a water content meter provided by the present invention, as shown in fig. 1 to 2, the device comprises:
a feed pump 1, an outlet close to the feed pump 1 is connected with a first material guide pipe 2, one end of the first material guide pipe 2 is connected with a first three-way connecting pipe 3, two ends of the first three-way connecting pipe 3 are respectively connected with a first solid caustic soda dryer 4 and a second solid caustic soda dryer 5, the first solid caustic soda dryer 4 and the second solid caustic soda dryer 5 are connected in parallel, an outlet close to the first solid caustic soda dryer 4 is connected with a first feed pipe 6, an outlet close to the second solid caustic soda dryer 5 is connected with a second feed pipe 7, one end of the first feed pipe 6 and one end of the second feed pipe 7 are connected with a second three-way connecting pipe 8 together, the first feed pipe 6 and the second feed pipe 7 are both provided with a water content measuring meter 9, one end of the second three-way connecting pipe 8 is connected with a low boiling tower 10, a discharge outlet of the first solid caustic soda dryer 4 is provided with a first caustic soda conveying pipe 11, a discharge outlet of the second solid caustic soda dryer 5 is provided with a second soda conveying pipe 12, one end of the first alkali conveying pipe 11 and one end of the second alkali conveying pipe 12 are connected with a third tee joint pipe 13, one end of the third tee joint pipe 13 is connected with an alkali liquor collecting tank 14, an outlet of the alkali liquor collecting tank 14 is connected with an alkali liquor delivery pump 15, an outlet of the alkali liquor delivery pump 15 is provided with a third alkali conveying pipe 16, one end of the third alkali conveying pipe 16 is provided with a fourth tee joint pipe 17, and two ends of the fourth tee joint pipe 17 are respectively connected with an alkali liquor circulating tank 18 and a waste water tank 19.
Specifically, the liquid vinyl chloride monomer enters a feeding dehydration device through a feeding pump 1, enters a first solid caustic soda dryer 4 through a first material guiding pipe 2 and a first three-way connecting pipe 3, and then enters a low boiling tower 10 through a first feeding pipe 6, a second three-way connecting pipe 8 and a third feeding pipe 22, so that the liquid vinyl chloride monomer is dried. In order to reduce the influence of maintenance on production, a one-use one-standby scheme is adopted, and a second solid caustic soda dryer 5 is connected in parallel with the first solid caustic soda dryer 4. Preferably, the first three-way connecting pipe 3 is connected with the first solid caustic soda dryer 4 through a second material guiding pipe 20, and a first electromagnetic induction valve 23 is arranged on the second material guiding pipe 20. Preferably, the first three-way connecting pipe 3 is connected with the second solid caustic soda dryer 5 through a third material guiding pipe 21, and a second electromagnetic induction valve 24 is arranged on the third material guiding pipe 21. During normal use, the existing control system is utilized to control the first electromagnetic induction valve 23 to be opened, the second electromagnetic induction valve 24 to be closed, and the liquid vinyl chloride monomer enters the first solid caustic soda dryer 4 through the second material guide pipe 20 for drying. When the first solid caustic soda dryer 4 is overhauled, the existing control system is utilized to control the first electromagnetic induction valve 23 to be closed, the second electromagnetic induction valve 24 to be opened, and the liquid vinyl chloride monomer enters the second solid caustic soda dryer 5 through the third material guide pipe 21 to be dried. Simultaneously, all be provided with water content meter 9 on this feeding dewatering device's the first inlet pipe 6 and the second inlet pipe 7, water content meter 9 can real-time supervision chloroethylene liquid monomer's dehydration effect, and when monitoring the water content, water content meter 9 will report to the police, and the control personnel just can stop use first solid caustic soda desicator 4, starts second solid caustic soda desicator 5 to overhaul first solid caustic soda desicator 4, realize once using one and be equipped with.
The alkali liquor formed after being absorbed by the first solid alkali dryer 4 or the second solid alkali dryer 5 is conveyed to the alkali liquor collecting tank 14 through the first alkali conveying pipe 11 or the second alkali conveying pipe 12, the third tee joint pipe 13 and the fourth alkali conveying pipe 27, and then conveyed to the alkali liquor circulating tank 18 and the wastewater tank 19 respectively through the fifth alkali conveying pipe 28, the alkali liquor conveying pump 15, the third alkali conveying pipe 16, the fourth tee joint pipe 17, the sixth alkali conveying pipe 29 and the seventh alkali conveying pipe 30 for cyclic utilization and centralized treatment.
Preferably, the first solid caustic soda dryer 4 and the second solid caustic soda dryer 5 are both vertical solid caustic soda dryers, and the vertical solid caustic soda dryers are characterized by high drying heat efficiency, simplified working procedures, saved floor area and saved investment.
According to the poisonous characteristic of chloroethylene, reveal the monitoring to the chloroethylene, preferably, all still be provided with pressure gauge 25 on first inlet pipe 6 and the second inlet pipe 7, on the control system monitoring screen in the transmission of pressure gauge 25 display value, can monitor whether normal operating of a novel liquid monomer feeding dewatering device of chloroethylene, when pressure is low excessively, it has the leakage just to explain the liquid monomer of chloroethylene, the personnel on duty just can be with first electromagnetic induction valve 23 and the 24 whole closeouts of second electromagnetic induction valve, stop this dewatering device of operation, and inform the maintainer to overhaul.
During the production process, the alkali liquor in the alkali liquor collecting tank 14 needs to be conveyed according to actual requirements, preferably, a remote controller 26 is further arranged on the alkali liquor conveying pump 15, when the alkali liquor collected in the alkali liquor collecting tank 14 reaches the storage upper limit value, the alkali liquor conveying pump 15 is started to operate by using the remote controller 26 to carry out alkali liquor conveying, and when the alkali liquor collected in the alkali liquor collecting tank 14 reaches the storage lower limit value, the alkali liquor conveying pump 15 stops operating. Therefore, the alkali liquor delivery pump 15 can be efficiently utilized, the empty load operation is avoided, and the electric energy is saved.
The utility model provides a novel liquid monomer feeding dewatering device of chloroethylene, liquid monomer of chloroethylene gets into solid alkali desicator through low tower charge pump, through the drying action of solid alkali desicator, absorb the moisture that contains in the liquid monomer of chloroethylene, form dry liquid monomer of chloroethylene and alkali lye, dry liquid monomer of chloroethylene passes through the inlet pipe and gets into the low boiling tower, alkali lye passes through the bin outlet and gets into in the alkali lye collection tank, the rethread is carried alkali lye to centralized processing in alkali lye circulation tank and the waste water jar rather than the alkali lye delivery pump that is connected. The liquid vinyl chloride monomer is dried by the solid alkali dryers, the original characteristics of the liquid vinyl chloride monomer are guaranteed, the two solid alkali dryers can also be used for standby, the problem that the liquid vinyl chloride monomer is not dehydrated and directly enters a rectification process through a side pipeline due to repair, the water content of vinyl chloride gas produced by a rectification system is seriously exceeded, and the product quality of subsequent resin paste is improved.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.
Claims (6)
1. A novel chloroethylene liquid monomer feeding and dewatering device is characterized by comprising:
a feed pump, an outlet close to the feed pump is connected with a first guide pipe, one end of the first guide pipe is connected with a first three-way connecting pipe, two ends of the first three-way connecting pipe are respectively connected with a first solid caustic soda dryer and a second solid caustic soda dryer, the first solid caustic soda dryer and the second solid caustic soda dryer are connected in parallel, an outlet close to the first solid caustic soda dryer is connected with a first feed pipe, an outlet close to the second solid caustic soda dryer is connected with a second feed pipe, one end of the first feed pipe and one end of the second feed pipe are jointly connected with a second three-way connecting pipe, the first feed pipe and the second feed pipe are both provided with a water content meter, one end of the second three-way connecting pipe is connected with a low boiling tower, a discharge port of the first solid caustic soda dryer is provided with a first alkali conveying pipe, and a discharge port of the second solid caustic soda dryer is provided with a second alkali conveying pipe, the one end of first defeated alkali pipe with the one end of defeated alkali pipe of second is connected with third tee junction pipe jointly, the one end of third tee junction pipe is connected with alkali lye collecting tank, the exit of alkali lye collecting tank is connected with the alkali lye delivery pump, the export department of alkali lye delivery pump is provided with the defeated alkali pipe of third, the one end of defeated alkali pipe of third is provided with the fourth tee junction pipe, two ends of fourth tee junction pipe are connected with alkali lye circulation tank and waste water tank respectively.
2. The feeding and dewatering device of claim 1, wherein the first three-way connecting pipe is connected to the first solid caustic soda dryer through a second material guiding pipe, and a first electromagnetic induction valve is disposed on the second material guiding pipe.
3. The feeding and dewatering device of claim 1, wherein the first three-way connecting pipe is connected to the second solid caustic soda dryer through a third material guiding pipe, and a second electromagnetic induction valve is disposed on the third material guiding pipe.
4. The novel liquid monomer feed dehydration device of vinyl chloride as claimed in claim 1 wherein said first solid caustic soda dryer and said second solid caustic soda dryer are both vertical solid caustic soda dryers.
5. The device for dehydrating a vinyl chloride liquid monomer feed of claim 1, wherein each of the first feed pipe and the second feed pipe is further provided with a pressure gauge.
6. The apparatus for dehydrating a vinyl chloride liquid monomer feed as claimed in claim 1, wherein a remote controller is further provided on the lye pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121474150.8U CN215691836U (en) | 2021-06-30 | 2021-06-30 | Novel chloroethylene liquid monomer feeding and dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121474150.8U CN215691836U (en) | 2021-06-30 | 2021-06-30 | Novel chloroethylene liquid monomer feeding and dewatering device |
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| Publication Number | Publication Date |
|---|---|
| CN215691836U true CN215691836U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121474150.8U Active CN215691836U (en) | 2021-06-30 | 2021-06-30 | Novel chloroethylene liquid monomer feeding and dewatering device |
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| CN (1) | CN215691836U (en) |
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- 2021-06-30 CN CN202121474150.8U patent/CN215691836U/en active Active
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