CN201485406U - Adjusting device of water injection volume during polymerization process of polychloroethylene - Google Patents
Adjusting device of water injection volume during polymerization process of polychloroethylene Download PDFInfo
- Publication number
- CN201485406U CN201485406U CN2009200056177U CN200920005617U CN201485406U CN 201485406 U CN201485406 U CN 201485406U CN 2009200056177 U CN2009200056177 U CN 2009200056177U CN 200920005617 U CN200920005617 U CN 200920005617U CN 201485406 U CN201485406 U CN 201485406U
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- China
- Prior art keywords
- water injection
- manual valve
- injection volume
- adjusting device
- valve
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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.)
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Abstract
The utility model discloses an adjusting device of water injection volume during polymerization process of polychloroethylene. The adjusting device comprises a rotor flow meter, a DCS control system, an automatic adjusting valve and a hand-operated valve. The adjusting device of water injection volume meters water injection volume through the rotor flow meter, and transfers flow capacity signals to the DCS control system, the DCS system controls the automatic adjusting valve, thereby achieving real-time and accurate metering and adjustment at any moment to the water injection volume of a polymerizer, liquid in the polymerizer is led to be kept a constant value, product quality is improved, the conversion ratio of VCM is improved, a kettle adhering phenomenon is avoided, potential safe hazards are reduced, operation is safe and reliable, labor intensity of workers is greatly lowered, and the adjusting device has excellent technical effect.
Description
Technical field:
The utility model relates to a kind of flow regulation device, relates in particular to the setting device of water injection rate in the polyvinyl chloride polymerization process.
Background technology:
In the suspension type polyvinyl-chloride production technique,, reduce production costs, often react water filling midway at polymeric kettle in order to improve the output of polymeric kettle, the amount of VCM in the time of can improving initial charge like this, when the VCM reaction volume shrank, it was constant to keep water-oil ratio.On the one hand, water filling can make the regular porosity of resin particle form good; On the other hand, can remedy the defective that the space increases in the still in the reaction, thereby improve the transformation efficiency of VCM.Water filling can also be avoided the material thickening, correspondingly alleviates sticking still.Polymeric kettle adopts restriction orifice to measure water injection rate roughly more in the prior art, can not measure water injection rate real-time and accurately and keep the constant of water injection rate.
The utility model content:
The purpose of this utility model is to provide a kind of can regulate flow at any time, keeps water injection rate constant water injection rate setting device in the polymeric kettle.
Water injection rate setting device of the present utility model comprises spinner-type flowmeter, DCS Controlling System, automatic regulating valve; Its connection, control are closed and is: spinner-type flowmeter, automatic regulating valve are located on the water pipeline, and the metering signal of spinner-type flowmeter is passed to the DCS Controlling System, DCS Controlling System control automatic regulating valve.
Described device also comprises manual valve (1), manual valve (2); Manual valve (1), (2) are located at the spinner-type flowmeter both sides respectively on water pipeline, described manual valve (1), (2) are normally open.
Described device also comprises manual valve (3), and manual valve (3) is located between manual valve (1) inlet and manual valve (2) outlet, and manual valve (3) is a normally off.
Water injection rate setting device of the present utility model, by spinner-type flowmeter water injection rate is measured, and flow signal passed to the DCS Controlling System, the DCS Controlling System is controlled automatic regulating valve again, realized metering accurately and the adjusting at any time in real time of polymeric kettle water injection rate, make constant value of water injection rate maintenance in the polymeric kettle, improved quality product, improved the transformation efficiency of VCM, avoid sticking still phenomenon, reduced potential safety hazard, safe and reliable to operation, greatly reduce labor strength, have good technical effect.
Description of drawings:
Fig. 1 is the utility model apparatus structure synoptic diagram.
Fig. 2 controls water injection rate electric loop figure automatically for DCS.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, the water injection rate setting device comprises spinner-type flowmeter 4, DCS Controlling System 5, automatic regulating valve 6, it connects the control relation: spinner-type flowmeter 4 passes to DCS Controlling System 5 in real time with the injection flow signal, and the DCS Controlling System is controlled to regulate water injection rate at any time automatic regulating valve 6.
In the both sides, front and back of spinner-type flowmeter manual valve 1, manual valve 2 are set respectively,, have only when spinner-type flowmeter breaks down, just need close manual valve 1,2, keep in repair so that rotor is flowed when manual valve 1,2 is in normally open.
Manual valve 3 is located between manual valve 1 inlet and manual valve 2 outlets, is in normally off, is equivalent to a bypass.When spinner-type flowmeter breaks down, close manual valve 1,2, open manual valve 3, water injects polymeric kettle 7 by manual valve 3, automatic regulating valve 6, realizes uninterruptedly safety in production.
As shown in Figure 2, the measurement signal of spinner-type flowmeter passes to the DCS housing by cable, and through after the Computer Processing, feedback signal passes to automatic regulating valve from the DCS housing by cable and regulates.The control situation of DCS housing is as shown in the table:
Claims (3)
1. the setting device of water injection rate in the polyvinyl chloride polymerization process, it is characterized in that: described device comprises spinner-type flowmeter, DCS Controlling System, automatic regulating valve; Its connection, control are closed and is: spinner-type flowmeter, automatic regulating valve are located on the water pipeline, and the metering signal of spinner-type flowmeter is passed to the DCS Controlling System, DCS Controlling System control automatic regulating valve.
2. the setting device of water injection rate in a kind of polyvinyl chloride polymerization process as claimed in claim 1 is characterized in that: described device also comprises manual valve (1), manual valve (2); Manual valve (1), (2) are located at the spinner-type flowmeter both sides respectively on water pipeline, described manual valve (1), (2) are normally open.
3. the setting device of water injection rate in a kind of polyvinyl chloride polymerization process as claimed in claim 2, it is characterized in that: described device also comprises manual valve (3), manual valve (3) is located between manual valve (1) inlet and manual valve (2) outlet, and manual valve (3) is a normally off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200056177U CN201485406U (en) | 2009-03-24 | 2009-03-24 | Adjusting device of water injection volume during polymerization process of polychloroethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200056177U CN201485406U (en) | 2009-03-24 | 2009-03-24 | Adjusting device of water injection volume during polymerization process of polychloroethylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201485406U true CN201485406U (en) | 2010-05-26 |
Family
ID=42424295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200056177U Expired - Lifetime CN201485406U (en) | 2009-03-24 | 2009-03-24 | Adjusting device of water injection volume during polymerization process of polychloroethylene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201485406U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109876951A (en) * | 2019-04-05 | 2019-06-14 | 唐山三友氯碱有限责任公司 | Kettle system and method is applied automatically in micro- outstanding newborn method vinyl chloride resin production process |
-
2009
- 2009-03-24 CN CN2009200056177U patent/CN201485406U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109876951A (en) * | 2019-04-05 | 2019-06-14 | 唐山三友氯碱有限责任公司 | Kettle system and method is applied automatically in micro- outstanding newborn method vinyl chloride resin production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |