CN206069744U - Vinyl chloride polymerization reactor water injection pipe arrangement - Google Patents
Vinyl chloride polymerization reactor water injection pipe arrangement Download PDFInfo
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- CN206069744U CN206069744U CN201620898165.XU CN201620898165U CN206069744U CN 206069744 U CN206069744 U CN 206069744U CN 201620898165 U CN201620898165 U CN 201620898165U CN 206069744 U CN206069744 U CN 206069744U
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Abstract
This utility model is related to a kind of Production of PVC equipment, specifically discloses a kind of vinyl chloride polymerization reactor water injection pipe arrangement.Including the injection manifold that one end is connected with water storage system, the injection manifold other end branch is bottom water injection pipe parallel with one another and crest water flooding pipe, the bottom water injection pipe is connected with polymeric kettle bottom, connecting tube is linked between polymeric kettle crest water flooding mouth and polymeric kettle rupture pressure disc, crest water flooding pipe one end branch is the first arm parallel with one another and the second arm, first arm is connected with spray ring at the top of polymeric kettle, and second arm is connected with connecting tube.The utility model has the advantage of：1）Improve rupture pressure disc security interlocking protection performance and cycle of operation；2）Avoid injury of the manual cleaning to rupture pressure disc；3）Ensure the stability of stirring axle envelope flushing water flow, extend axle envelope cycle of operation.
Description
Technical field
This utility model is related to a kind of Production of PVC equipment, especially a kind of auxiliary device of vinyl chloride polymerization reactor.
Background technology
The production technology of Corvic is ripe already, especially polymerization technique, through the development evolvement of recent decades
More ripe, the water filling of polymerization technique midway is very crucial in polymerization process, as polyreaction is the liquid phase body in monomer and water
Carry out in system, with the volume-diminished of the increase polymerization liquid-phase system of conversion ratio, the viscosity increase of system, gas-phase space also increase；
Because the increase of polymerization system viscosity so that the probability increase of polymerization grain, the decline of heat-transfer capability is also resulted in, so as to make
Architectonical reaction temperature is uneven, and then output per single reactor is reduced, so water filling work in midway is adopted in process for suspension polymerization
Skill maintains the viscosity and volume of polymerization system, keeps temperature of reaction system uniform, reaches the purpose for improving yield.
The midway water flooding regime that polymeric kettle is commonly used at present is that the spray ring by water injection pipe from polymeric kettle bottom and top is past poly-
Water filling in kettle is closed, this water flooding regime is beneficial to the thing in the constant and cooling polymeric kettle of volume of material in kettle during maintenance polyreaction
Material temperature degree, increases the decline of too fast and heat transfer coefficient so as to be prevented effectively from material viscosity in kettle, causes the shifting heat of polymerization exotherm tired
Difficult and viscous kettle phenomenon.
Vinyl chloride polymerization reactor adopts mostly and rupture pressure disc blasting piece device is arranged at the top of polymeric kettle as safety interlocking at present
Protected mode, and in macrocyclic polymerization production process, on the rupture pressure disc being connected with polymeric kettle, easily adhere to substantial amounts of chlorine
Vinyl monomer autopolymer, the sensitivity decline or safeguard protection interlocking for causing rupture pressure disc are acted on not in time.
Frequently with the method for periodically carrying out labor cleaning to rupture pressure disc in prior art, but labor cleaning's autopolymer frequency is high
The damage of tube wall etc. can be caused, the hydraulic performance decline of rupture pressure disc and labor intensity increase, the problems such as production efficiency is reduced.
Stirring is the important leverage that polyreaction moves heat and naval stores quality, therefore needs to ensure in polymerization process
The stability of stirring axle envelope flushing water flow, in the prior art, between coming frequently with a set of mass flow meters being arranged on house steward
The flushing discharge for measuring and monitoring by stirring axle envelope is connect, but the method is difficult to judge to stir whether axle envelope flushing pipe goes out
Now block, it is impossible to ensure that axle envelope rinses the stability of discharge.
Utility model content
To solve the cleaning of rupture pressure disc and safety issue in prior art, this utility model is poly- there is provided a kind of vinyl chloride
Close kettle water injection pipe arrangement.
This utility model solves the technical scheme adopted by its technical problem：Vinyl chloride polymerization reactor water injection pipe arrangement knot
Structure, including the injection manifold that one end is connected with water storage system, the injection manifold other end branch are bottom note parallel with one another
Water pipe and crest water flooding pipe, the bottom water injection pipe are connected with polymeric kettle bottom, and polymeric kettle crest water flooding mouth is explosion-proof with polymeric kettle
It is linked with connecting tube between film, crest water flooding pipe one end branch is the first arm parallel with one another and the second arm, described
First arm is connected with spray ring at the top of polymeric kettle, and second arm is connected with connecting tube.
This utility model is increased between rupture pressure disc and polymeric kettle by connecting tube is arranged between polymeric kettle and rupture pressure disc
Distance, this will be caused in polymerization production process, and most polrvinyl chloride monomer autopolymer is attached in connecting tube, rather than
It is attached on rupture pressure disc, now a water filling arm can be joined directly together with connecting tube, by water filling directly to being attached to polychlorostyrene second
The connecting tube of alkene monomer autopolymer is rinsed, it is to avoid rupture pressure disc carried out frequent manual cleaning cause tube wall etc. damage and
Labor intensity increases, the problems such as production efficiency is reduced.
As further improvement of the utility model, bottom water injection effusion meter is provided with the bottom water injection pipe, with reality
The now independent monitoring to stirring axle envelope flushing pipe, it is ensured that axle envelope rinses the stability of discharge.
Used as further improvement of the utility model, the length of the connecting tube is 10～20cm.If connection length of tube is little
In 10cm, then larger amount of polrvinyl chloride monomer autopolymer still can be attached on rupture pressure disc, explosion-proof if length is more than 20cm
The explosion-proof performance of film will be affected.
Used as further improvement of the utility model, the structure of the water storage system is：Including cold pure water groove and being connected in parallel on
Water filling high-pressure pump and return valve between cold pure water groove and injection manifold, the water filling high-pressure pump are gone out with cold pure water trench bottom
The mouth of a river is connected, and return valve is connected with cold pure sink top.Pipeline hydraulic pressure can control using the water storage system of the structure, realize
Regulation to whole tubing Peak Flow Rate and flow.
Used as further improvement of the utility model, the injection manifold is provided with main valve, the bottom water injection pipe series connection
There is a bottom water injection regulating valve, the crest water flooding pipe is in series with crest water flooding effusion meter and crest water flooding regulating valve, described first
Arm is provided with spray ring main valve, and second arm is provided with rupture pressure disc pipe flushing water valve.In order to being monitored to flow and
Realize the Discrete control of whole tubing so that whole the injecting process is safely controllable.
Further, the bottom water injection effusion meter, bottom water injection regulating valve, crest water flooding effusion meter, crest water flooding are adjusted
Section valve is automatically controlled by DCS system (Distributed Control System).With real according to polyreaction situation and relevant parameter setting
Existing the injecting process is automatically controlled.
The beneficial effects of the utility model are：1）Improve rupture pressure disc security interlocking protection performance and cycle of operation；2）Avoid
Injury of the manual cleaning to rupture pressure disc；3）Ensure the stability of stirring axle envelope flushing water flow, extend axle envelope cycle of operation.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
It is labeled as in figure：The cold pure water grooves of 1-；2- water filling high-pressure pumps；3- return valves；4- bottom water injection effusion meters；5- bottoms
Portion's water injection regulating valve；6- stirs axle envelope；7- crest water flooding effusion meters；8- crest water flooding regulating valves；9- polymeric kettle spray ring main valves；
10- rupture pressure disc pipe flushing water valves；11- rupture pressure discs；12- polymeric kettles；13- connecting tubes；14- injection manifolds；15- bottom water injections
Pipe；16- crest water flooding pipes；17- main valves；The first arms of 18-；The second arms of 19-.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further illustrated.
As shown in figure 1, vinyl chloride polymerization reactor water injection pipe arrangement of the present utility model, by out cold of cold pure water groove 1
Pure water boosts via water filling high-pressure pump 2, controls its pressure by return valve 3 stand-by after setting value.
After polymeric kettle stirring starts, the aggregated bottom portion of a part of water filling is by DCS programme-control bottom water injections effusion meter 4
With bottom water injection regulating valve 5 both as stirring 6 flushing water of axle envelope, and as the constant water filling with cooling of polyreaction maintenance system
Eventually entered in polymeric kettle 12 in the lump；After final polyreaction terminates discharging, when polymeric kettle stirring stops, bottom water injection is automatic
Stop；
After reaction to be polymerized starts, the aggregated kettle crest water flooding effusion meter 7 of another part water filling and crest water flooding regulating valve 8
Control is by final injection polymeric kettle 12 after spray ring main valve 9 and rupture pressure disc pipe flushing water valve 10；After reaction to be polymerized terminates, top
Portion's water filling is automatically stopped.
In polymeric kettle crest water flooding, when a part is by rupture pressure disc pipe flushing water valve 10, to polymeric kettle rupture pressure disc 11
The connecting tube 13 of part of being connected with polymeric kettle 12 plays a part of spray irrigation, can effectively reduce or prevent Vinyl Chloride Monomer
The generation of autopolymer, so as to the decline for avoiding the sensitivity of rupture pressure disc causes safeguard protection interlocking to act on not in time, while
Damage and labor intensity of the labor cleaning to rupture pressure disc can be reduced.
The polymerization water filling is real according to polyreaction situation and relevant parameter setting by DCS (Distributed Control System) programs
Now automatically control.
Claims (6)
1. the injection manifold that vinyl chloride polymerization reactor water injection pipe arrangement, including one end is connected with water storage system（14）, the note
Supply mains (14) other end branch is bottom water injection pipe parallel with one another（15）With crest water flooding pipe（16）, the bottom water injection pipe
(15) connect with polymeric kettle bottom；It is characterized in that：It is linked between polymeric kettle crest water flooding mouth and polymeric kettle rupture pressure disc (11)
Connecting tube（13）, described crest water flooding pipe (16) one end branch is the first arm parallel with one another（18）With the second arm（19）,
First arm（18）Connect with spray ring at the top of polymeric kettle, second arm（19）With connecting tube（13）Connection.
2. vinyl chloride polymerization reactor water injection pipe arrangement according to claim 1, it is characterised in that：The bottom water injection pipe
（15）On be provided with bottom water injection effusion meter（4）.
3. vinyl chloride polymerization reactor water injection pipe arrangement according to claim 1 and 2, it is characterised in that：The connecting tube
（13）Length be 10～20cm.
4. vinyl chloride polymerization reactor water injection pipe arrangement according to claim 1 and 2, it is characterised in that：The water storage system
The structure of system is：Including cold pure water groove（1）Be connected in parallel on cold pure water groove（1）With injection manifold（14）Between water filling high-pressure pump
（2）And return valve（3）, the water filling high-pressure pump（2）With cold pure water groove（1）Bottom outlet is connected, return valve（3）
With cold pure water groove（1）Top connection.
5. vinyl chloride polymerization reactor water injection pipe arrangement according to claim 2, it is characterised in that：The injection manifold
(14) it is provided with main valve（17）, the bottom water injection pipe（15）It is in series with bottom water injection regulating valve（5）, the crest water flooding pipe
（16）It is in series with crest water flooding effusion meter（7）With crest water flooding regulating valve（8）, first arm (18) is provided with spray ring main valve
（9）, second arm (19) is provided with rupture pressure disc pipe flushing water valve（10）.
6. vinyl chloride polymerization reactor water injection pipe arrangement according to claim 5, it is characterised in that：The bottom water injection stream
Gauge（4）, bottom water injection regulating valve（5）, crest water flooding effusion meter（7）, crest water flooding regulating valve（8）Carried out by DCS system
Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620898165.XU CN206069744U (en) | 2016-08-18 | 2016-08-18 | Vinyl chloride polymerization reactor water injection pipe arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620898165.XU CN206069744U (en) | 2016-08-18 | 2016-08-18 | Vinyl chloride polymerization reactor water injection pipe arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206069744U true CN206069744U (en) | 2017-04-05 |
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ID=58430474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620898165.XU Active CN206069744U (en) | 2016-08-18 | 2016-08-18 | Vinyl chloride polymerization reactor water injection pipe arrangement |
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| Country | Link |
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| CN (1) | CN206069744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178202A (en) * | 2022-06-29 | 2022-10-14 | 新疆中泰化学托克逊能化有限公司 | Seed emulsion polymerization kettle with prevent moulding function |
-
2016
- 2016-08-18 CN CN201620898165.XU patent/CN206069744U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178202A (en) * | 2022-06-29 | 2022-10-14 | 新疆中泰化学托克逊能化有限公司 | Seed emulsion polymerization kettle with prevent moulding function |
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