CN214344514U - Device for reducing self-polymerization of vinyl chloride monomer in spherical tank - Google Patents
Device for reducing self-polymerization of vinyl chloride monomer in spherical tank Download PDFInfo
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- CN214344514U CN214344514U CN202022434442.0U CN202022434442U CN214344514U CN 214344514 U CN214344514 U CN 214344514U CN 202022434442 U CN202022434442 U CN 202022434442U CN 214344514 U CN214344514 U CN 214344514U
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Abstract
The utility model relates to a chloroethylene production technical field is a device that reduces spherical tank chloroethylene monomer auto-agglutination, it includes smart monomer cooler, spherical tank and drainage tank, the fixed intercommunication of smart monomer cooler bottom tube side import has the smart monomer pipeline, fixed intercommunication has smart monomer to go into a jar pipeline between smart monomer cooler top tube side export and the spherical tank bottom import, fixed intercommunication has drainage line between spherical tank bottom outlet and the drainage tank top water inlet, the fixed intercommunication of drainage tank bottom delivery port has sewage pipes, the fixed intercommunication of drainage tank middle part air inlet has low pressure steam line. The utility model has the advantages of reasonable and compact structure, convenient to use, its vinyl chloride monomer through to getting into the spherical tank cools down and carries out automatic drainage to the spherical tank for spherical tank temperature, pressure all descend, and the spherical tank dewatering effect of stewing is obvious, and the auto-agglutination phenomenon reduces, and production is stable, also greatly reduced enterprise production safety risk and running cost, have safety, laborsaving, simple and convenient, efficient characteristics.
Description
Technical Field
The utility model relates to a chloroethylene production technical field is a device that reduces spherical tank chloroethylene monomer auto-agglutination.
Background
At present, a refined monomer generated by ethylene rectification enters a vinyl chloride spherical tank without other cooling equipment, so that the temperature of the spherical tank is higher, especially the temperature in summer is higher, the pressure of the spherical tank is high, the standing dewatering effect is poor, a certain amount of oxygen is contained in the monomer, the monomer can react with the monomer to produce peroxide, the water can hydrolyze the peroxide to generate acidic substances such as hydrogen chloride, formic acid, formaldehyde and the like to initiate the self-polymerization of the vinyl chloride monomer spherical tank and a monomer pipeline, and the cost for cleaning a self-polymerization polymer per year is higher.
Meanwhile, the drainage of the vinyl chloride spherical tank is manual drainage, and the phenomenon that drainage time is irregular or drainage cannot be carried out in time exists; the monomer contains certain oxygen, and can react with the monomer to produce peroxide, and water can hydrolyze the peroxide to generate acidic substances such as hydrogen chloride, formic acid, formaldehyde and the like, so that pipelines and equipment are corroded, vinyl chloride monomer self polymerization is initiated, monomer pipelines and equipment are blocked, and production is threatened.
Disclosure of Invention
The utility model provides a reduce device that spherical tank chloroethylene monomer from gathering has overcome above-mentioned prior art not enough, and chloroethylene spherical tank and monomer pipeline from gathering serious problem that exist in its ability effectively solved current chloroethylene production.
The technical scheme of the utility model is realized through following measure: a device for reducing the self-polymerization of vinyl chloride monomers in a spherical tank comprises a refined monomer cooler, the spherical tank and a water drainage tank, wherein a refined monomer pipeline is fixedly communicated with a bottom tube side inlet of the refined monomer cooler, a refined monomer tank inlet pipeline is fixedly communicated between a top tube side outlet of the refined monomer cooler and a bottom inlet of the spherical tank, a bottom shell side inlet of the refined monomer cooler is fixedly communicated with a 0-degree water inlet pipeline, a top shell side outlet of the refined monomer cooler is fixedly communicated with a 0-degree water return pipeline, a water drainage pipeline is fixedly communicated between a bottom water outlet of the spherical tank and a top water inlet of the water drainage tank, a bottom water outlet of the water drainage tank is fixedly communicated with a sewage discharge pipeline, a middle air inlet of the water drainage tank is fixedly communicated with a low-pressure steam pipeline, a top air outlet of the water drainage tank is fixedly communicated with a vinyl chloride gas dealkalizing and washing tower pipeline, and a first communication pipeline is communicated between the refined monomer tank inlet pipeline and the tank pipeline, and a first automatic regulating valve and a flowmeter are sequentially and fixedly mounted on the fine monomer tank inlet pipeline between the first communication pipeline and the spherical tank.
The following are further optimization or/and improvement of the technical scheme of the utility model:
the fine monomer tank inlet pipeline between the first automatic regulating valve and the flowmeter is fixedly communicated with a second communicating pipeline between the first communicating pipeline and the fine monomer inlet pipeline, and a second valve is fixedly arranged on the second communicating pipeline.
A first automatic stop valve, a second automatic stop valve and a third automatic stop valve are fixedly mounted on the drainage pipeline, the sewage discharge pipeline and the pipeline of the last vinyl chloride gas caustic washing tower in sequence, a second automatic regulating valve is fixedly mounted on the low-pressure steam pipeline, and valves are fixedly mounted on the front and the back of the first automatic stop valve, the second automatic stop valve and the third automatic stop valve.
And a drain pipe is fixedly communicated with the drain pipeline between the first automatic cut-off valve and the drain tank.
The drainage tank is provided with a liquid level meter, a thermometer and a pressure gauge.
The first connecting pipeline is fixedly provided with a first valve, the second connecting pipeline is fixedly provided with a second valve, the first connecting pipeline is fixedly provided with a third valve, the second connecting pipeline is fixedly provided with a fourth valve, and the third connecting pipeline is fixedly provided with a fifth valve.
And valves are fixedly arranged on the 0-degree water inlet pipeline, the 0-degree water return pipeline, the fine monomer tank inlet pipeline between the flowmeter and the second communication pipeline and the first communication pipeline.
The utility model has the advantages of reasonable and compact structure, convenient to use, its vinyl chloride monomer through to getting into the spherical tank cools down and carries out automatic drainage to the spherical tank for spherical tank temperature, pressure all descend, and the spherical tank dewatering effect of stewing is obvious, and the auto-agglutination phenomenon reduces, and production is stable, also greatly reduced enterprise production safety risk and running cost, have safety, laborsaving, simple and convenient, efficient characteristics.
Drawings
FIG. 1 is a schematic view of the process of the present invention.
The codes in the figures are respectively: the device comprises a main body, a cooling system, a pump, a flowmeter, a thermometer, a pressure gauge, a third valve, a fourth valve, a fifth valve, a drain pipeline, a clean monomer inlet pipeline, a clean monomer outlet pipeline, a water inlet pipeline, a water outlet pipeline, a pipeline.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention will be further described with reference to the following examples and drawings:
as shown in the attached figure 1, the device for reducing the self-aggregation of the vinyl chloride monomer in the spherical tank comprises a refined monomer cooler 1, a spherical tank 2 and a water drainage tank 3, wherein a refined monomer pipeline 4 is fixedly communicated with a bottom tube side inlet of the refined monomer cooler 1, a refined monomer tank inlet pipeline 5 is fixedly communicated between a top tube side outlet of the refined monomer cooler 1 and a bottom inlet of the spherical tank 2, a 0-degree water inlet pipeline 6 is fixedly communicated with a bottom shell side inlet of the refined monomer cooler 1, a 0-degree water return pipeline 7 is fixedly communicated with a top shell side outlet of the refined monomer cooler 1, a water drainage pipeline 8 is fixedly communicated between a bottom water outlet of the spherical tank 2 and a top water inlet of the water drainage tank 3, a sewage drainage pipeline 9 is fixedly communicated with a bottom water outlet of the water drainage tank 3, a middle air inlet of the water drainage tank 3 is fixedly communicated with a low-pressure steam pipeline 10, a top air outlet of the water drainage tank 3 is fixedly communicated with a vinyl chloride gas dealkalization washing tower pipeline 11, come the smart monomer pipeline 4 and smart monomer to go into to be communicated between the jar pipeline 5 and have first intercommunication pipeline 12, first intercommunication pipeline 12 and spherical tank 2 between smart monomer go into jar pipeline 5 on fixed mounting have first automatically regulated valve 13 and flowmeter 14 in proper order.
In the utility model, the refined monomer cooler 1 cools and cools the vinyl chloride refined monomer by utilizing water with the temperature of 0 ℃, thereby reducing the temperature of the spherical tank 2, reducing the pressure of the spherical tank 2 and avoiding the problem of high pressure of the spherical tank 2 caused by high ambient temperature; the degree of self-polymerization of the spherical tank 2 and the monomer pipeline is reduced, the production problem caused by self-polymerization of the pipeline and equipment is reduced, and the maintenance cost is also reduced.
The device for reducing self polymerization of vinyl chloride monomer in the spherical tank can be further optimized or/and improved according to actual needs:
as shown in fig. 1, a second communication pipeline 15 is fixedly communicated between the fine monomer tank inlet pipeline 5 between the first automatic regulating valve 13 and the flow meter 14 and the fine monomer inlet pipeline 4 between the first communication pipeline 12 and the fine monomer inlet 4, and a second valve 17 is fixedly installed on the second communication pipeline 15.
As shown in the attached figure 1, a first automatic shut-off valve 18, a second automatic shut-off valve 19 and a third automatic shut-off valve 20 are fixedly mounted on a drainage pipeline 8, a sewage discharge pipeline 9 and an upper vinyl chloride gas dealkalizing and washing tower pipeline 11 in sequence, a second automatic regulating valve 21 is fixedly mounted on a low-pressure steam pipeline 10, and valves are fixedly mounted on the front and the rear of the first automatic shut-off valve 18, the second automatic shut-off valve 19 and the third automatic shut-off valve 20.
As shown in fig. 1, a drain line 28 is connected in parallel to the drain line 8 between the first automatic shut valve 18 and the drain tank 3.
The parallel connection drainage pipeline 28 is fixedly communicated with the drainage port at the bottom of other spherical tanks 2 according to requirements, and when other spherical tanks 2 need to drain, the water outlet at the bottom of other spherical tanks 2 and the parallel connection drainage pipeline 28 can be communicated, so that the water can be drained into the drainage tank 3.
As shown in fig. 1, a liquid level gauge 22, a thermometer 23 and a pressure gauge 24 are provided on the drain tank 3.
The liquid level, the temperature and the pressure of the drainage tank 3 can be detected conveniently and timely.
As shown in fig. 1, a third valve 25 is fixedly installed on the monomer dilution line 4 between the first communication line 12 and the second communication line 15, a fourth valve 26 is fixedly installed on the monomer dilution line 4 between the first communication line 12 and the spherical tank 2, and a fifth valve 27 is fixedly installed on the monomer dilution line 5 between the first communication line 12 and the spherical tank 2.
When the fine monomer cooler 1 is stopped or overhauled, the fourth valve 26 and the fifth valve 27 can be closed, the first valve 16 can be opened, and the fine monomer can be directly conveyed into the spherical tank 2 through the first communication pipeline 12. When the first communication line 12 is self-polymerized, the second valve 17 is opened to directly feed the monomer into the spherical tank 2 through the second communication line 15.
When the spherical tank 2 is filled with the refined monomers, the first valve 16 and the second valve 17 are closed, and the refined monomers are cooled by 0-degree water and then enter the spherical tank 2; can be according to the settlement time, open first automatic cutout valve 18 automatically and in time the drainage to drainage tank 3, simultaneously, can be according to drainage tank 3's temperature, open second automatically regulated valve 21 automatically, to letting in low pressure steam heating in drainage tank 3, open third automatic cutout valve 20, the chloroethylene heating that the aquatic contains evaporates the back and sends to the caustic wash tower and retrieve, opens fourth automatic cutout valve, and remaining water is discharged to the trench from drainage tank 3 bottom.
As shown in fig. 1, valves are fixedly mounted on the fine monomer tank inlet pipeline 5 between the 0-degree water inlet pipeline 6, the 0-degree water return pipeline 7, the flow meter 14 and the second communication pipeline 15.
Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.
Claims (10)
1. A device for reducing the self-polymerization of vinyl chloride monomers in a spherical tank is characterized by comprising a refined monomer cooler, the spherical tank and a water drainage tank, wherein a refined monomer pipeline is fixedly communicated with a bottom tube side inlet of the refined monomer cooler, a refined monomer tank inlet pipeline is fixedly communicated between a top tube side outlet of the refined monomer cooler and a bottom inlet of the spherical tank, a bottom shell side inlet of the refined monomer cooler is fixedly communicated with a 0-degree water inlet pipeline, a top shell side outlet of the refined monomer cooler is fixedly communicated with a 0-degree water return pipeline, a water drainage pipeline is fixedly communicated between a bottom water outlet of the spherical tank and a top water inlet of the water drainage tank, a bottom water outlet of the water drainage tank is fixedly communicated with a sewage discharge pipeline, a middle air inlet of the water drainage tank is fixedly communicated with a low-pressure steam pipeline, a top air outlet of the water drainage tank is fixedly communicated with a vinyl chloride gas dealkalizing tower pipeline, and a first communication pipeline is communicated between the refined monomer tank inlet pipeline and the water drainage pipeline, and a first automatic regulating valve and a flowmeter are sequentially and fixedly mounted on the fine monomer tank inlet pipeline between the first communication pipeline and the spherical tank.
2. The apparatus for reducing self-polymerization of vinyl chloride monomer in spherical tank according to claim 1, wherein a second communicating pipeline is fixedly connected between the refined monomer tank inlet pipeline between the first automatic regulating valve and the flow meter and the refined monomer inlet pipeline between the first communicating pipeline and the refined monomer inlet pipeline, and a second valve is fixedly installed on the second communicating pipeline.
3. The device for reducing the self-polymerization of the vinyl chloride monomer in the spherical tank according to claim 1 or 2, wherein a first automatic stop valve, a second automatic stop valve and a third automatic stop valve are fixedly mounted on a drainage pipeline, a sewage drainage pipeline and a pipeline for feeding vinyl chloride gas to a caustic washing tower in sequence, a second automatic regulating valve is fixedly mounted on a low-pressure steam pipeline, and valves are fixedly mounted on the front and the rear of the first automatic stop valve, the second automatic stop valve and the third automatic stop valve.
4. The device for reducing self-polymerization of vinyl chloride monomers in the spherical tank as claimed in claim 1 or 2, wherein a drain pipe is fixedly communicated and connected in parallel with a drain line between the first automatic shut-off valve and the drain tank.
5. The device for reducing self-polymerization of vinyl chloride monomer in the spherical tank as claimed in claim 3, wherein the drain line between the first automatic shut-off valve and the drain tank is fixedly communicated with a parallel drain pipe.
6. The apparatus for reducing self-polymerization of vinyl chloride monomer in the spherical tank as claimed in claim 1, 2 or 5, wherein a liquid level meter, a temperature gauge and a pressure gauge are provided on the drainage tank.
7. The apparatus for reducing self-polymerization of vinyl chloride monomer in spherical tank as claimed in claim 4, wherein the drain tank is provided with a liquid level gauge, a thermometer and a pressure gauge.
8. The apparatus for reducing self-polymerization of vinyl chloride monomer in spherical tank according to claim 1, 2, 5 or 7, wherein the third valve is fixedly installed on the polishing monomer pipeline between the first communication pipeline and the second communication pipeline, the fourth valve is fixedly installed on the polishing monomer pipeline between the first communication pipeline and the spherical tank, and the fifth valve is fixedly installed on the polishing monomer tank inlet pipeline between the first communication pipeline and the spherical tank.
9. The apparatus for reducing self-polymerization of vinyl chloride monomer in spherical tank of claim 6, wherein the third valve is fixed on the polishing monomer line between the first communicating line and the second communicating line, the fourth valve is fixed on the polishing monomer line between the first communicating line and the spherical tank, and the fifth valve is fixed on the polishing monomer in-tank line between the first communicating line and the spherical tank.
10. The apparatus for reducing self-polymerization of vinyl chloride monomer in spherical tank according to claim 1, 2, 5, 7 or 9, wherein the 0 degree water inlet pipeline, the 0 degree water return pipeline, the fine monomer tank inlet pipeline between the flow meter and the second communication pipeline, and the first communication pipeline are all fixedly provided with valves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022434442.0U CN214344514U (en) | 2020-10-28 | 2020-10-28 | Device for reducing self-polymerization of vinyl chloride monomer in spherical tank |
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| CN202022434442.0U CN214344514U (en) | 2020-10-28 | 2020-10-28 | Device for reducing self-polymerization of vinyl chloride monomer in spherical tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112295521A (en) * | 2020-10-28 | 2021-02-02 | 新疆圣雄氯碱有限公司 | Method and device for reducing self-polymerization of vinyl chloride monomer in tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112295521A (en) * | 2020-10-28 | 2021-02-02 | 新疆圣雄氯碱有限公司 | Method and device for reducing self-polymerization of vinyl chloride monomer in tank |
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