CN2822760Y - Full flowing internal jecketed type polyvinyl chloride polymerization still - Google Patents
Full flowing internal jecketed type polyvinyl chloride polymerization still Download PDFInfo
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- CN2822760Y CN2822760Y CN 200520045285 CN200520045285U CN2822760Y CN 2822760 Y CN2822760 Y CN 2822760Y CN 200520045285 CN200520045285 CN 200520045285 CN 200520045285 U CN200520045285 U CN 200520045285U CN 2822760 Y CN2822760 Y CN 2822760Y
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- chuck
- current global
- semicircle pipe
- global mechanism
- polymeric kettle
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Abstract
The utility model relates to a full flowing inner jacket type polyvinyl chloride polymerization kettle. The utility model is characterized in that an inner cooling jacket is arranged on an inner wall of a polymerization kettle cylinder, and a plurality of inner cooling baffle plates are arranged on an outer wall of the inner cooling jacket. Semicircular pipe jackets are welded at the outer sides of an upper seal head and a lower seal head, and a stirring shaft is installed in the bottom entering mode from the bottom end of the lower seal head. The connecting point of the lower seal head and the stirring shaft is sealed by a mechanical seal system. By using a full flowing form inner cooling jacket, the thickness of a heat transmitting wall can be effectively reduced, heat exchange area is increased and total heat transmitting coefficient is improved. Simultaneously, the semicircular pipe jackets are welded at the outer sides of the upper and the lower seal heads and lead into cooling water to cool the upper and the lower seal heads and the stirring shaft is installed in the bottom entering mode from the bottom end of the lower seal head. In the mode, the length of the stirring shaft can be shortened, the swing of a stirrer at the shaft end is reduced to prevent a mechanical sealer from being damaged because of the jumping of the stirring shaft and further the service life of the mechanical sealer is prolonged. The utility model is provided with a kettle top condenser which carries out the heat transmission of gas phase medium in the kettle to ensure that the heat quantity which is generated by the polymerization reaction in the kettle is removed.
Description
Technical field
The utility model relates to a kind of polymeric kettle, and chuck pvc polymerizer in especially a kind of current global mechanism belongs to technical field of chemical.
Background technology
Polyvinyl chloride is PVC, and this product is widely used in every field such as industry, agricultural, medicine and commodity, and the yield and quality of PVC product and polymerizer equipment have direct relation.At present, the PVC polymeric kettle develops to the direction of maximization and automation just gradually, and large-scale PVC polymerizer can effectively save production cost, reduces labour intensity, improves output per single reactor and improve working environment.Very strict to temperature control requirement in the chloroethylene polymerization course of reaction, generally in ± 0.1 ℃ scope, this just must make polymeric kettle have good heat transfer property.But for the polymeric kettle that adopts external jacket forms such as spiral deflector or semicircle pipe, along with the increase of kettle volume, the still wall thickness also can increase thereupon, causes the increase of the thermal conduction resistance of still wall metal; Simultaneously, because the increase of polymeric kettle volume, specific area can reduce, and these all will cause the decline of polymeric kettle unit volume exchange capability of heat.In addition, the size of exchange capability of heat is also relevant with the mixing effect of agitating device, and therefore the structural design to agitator and shaft has also proposed high requirement.The shaft that heads into the formula agitating device is long, and the swing of not only waste material, and axle head agitator is excessive, causes the damage of mechanical seal to produce leakage easily, thereby influences the quality of PVC product.
Summary of the invention
The utility model provides a kind of interior chuck pvc polymerizer of current global mechanism that can effectively increase heat exchange area, raising overall heat-transfer coefficient, strengthen mixing effect.
For achieving the above object, the technical solution adopted in the utility model: chuck pvc polymerizer in a kind of current global mechanism, comprise mechanical sealing system, low head, semicircle pipe clamp cover, polymeric kettle cylindrical shell, interior cold chuck, upper cover, still top condenser, interior cold apron, agitator, shaft, be characterized in that cold chuck in being equipped with on the inwall of polymeric kettle cylindrical shell is provided with many interior cold aprons on the interior cold chuck outer wall, semicircle pipe clamp cover is welded on the outside of low head and upper cover, and shaft adopts bottom entering type to install by the low head bottom; Low head and shaft junction seal with mechanical sealing system, prevent material from leakage, and agitator is fixed on the shaft.
In the interior cold chuck spiral deflector is set, this spiral deflector one end is connected with the inwall of polymeric kettle cylindrical shell, and the other end is connected with adjacent band steel, forms sealing spiral deflector band steel welding current global mechanism structure chuck.
Interior cold chuck is a spirality semicircle pipe, and this semicircle pipe is connected with the polymeric kettle cylinder inboard wall, forms semicircle pipe welding current global mechanism structure chuck.
Interior cold chuck is the helical form angle steel, and this angle steel one side edgefold is connected with the polymeric kettle cylindrical shell, and the opposite side flanging is connected with the knuckle place of preceding one deck angle steel, forms angle steel welding current global mechanism structure chuck.
Interior cold chuck is a layered laminate semicircle pipe, and this semicircle pipe one side is connected with the polymeric kettle cylinder inboard wall, and opposite side is connected with preceding one deck semicircle tube outer surface, forms the stacked welding current global mechanism of semicircle pipe structure chuck.
Gapped or do not have gap or a stacked welding of semicircle pipe between the semicircle pipe of semicircle pipe clamp cover.
In cold chuck in the shape of a spiral shape be welded on the polymeric kettle inwall, welding is finished after all to the polish electrobrightening processing of its surface.
Agitator is individual layer blade structure or double-layer paddle structure.
The agitator of individual layer blade structure is that individual layer three leaf swept-back paddle stirrers or individual layer four leaves are opened the flat paddle stirrer of turbine type.
The agitator of double-layer paddle structure is that double-deck three leaf swept-back paddle stirrers or double-deck four leaves are opened the flat paddle stirrer of turbine type.
Interior cold apron is two or four, and the cross section of interior cold apron is the triangular-section.
The upper cover top is provided with still top condenser.
The beneficial effects of the utility model: the version of cold chuck comprises sealing spiral deflector band steel welding current global mechanism structure, semicircle pipe welding current global mechanism structure, angle steel welding current global mechanism structure and the stacked welding current global mechanism of semicircle pipe structure etc. in the current global mechanism.In the mode of cold chuck by welding be connected on the polymeric kettle cylinder inboard wall, and the jacket surface electrobrightening of comprehensively polishing is handled, prevent that material from gluing wall.Interior cold chuck feeds cooling water and directly material is cooled off, and adopts the interior cold chuck of current global mechanism form can effectively reduce the heat transfer wall thickness, increases heat exchange area and raising overall heat-transfer coefficient.Simultaneously, semicircle pipe clamp cover is welded on the low head outside, feeds cooling water last low head is cooled off.Shaft adopts bottom entering type to install by the low head bottom, can shorten the length of shaft like this, reduces the swing of axle head agitator, prevent because the damage that shaft is beated mechanical seal is caused, and then the service life of prolonged mechanical sealing.And, according to the technological requirement of producing different PVC products, in order to reach best flow regime and mixing effect, the agitator type that the utility model polymeric kettle adopts has individual layer three leaf swept-back oars, double-deck three leaf swept-back oars, individual layer four leaves to open the flat oar of turbine type and double-deck four leaves are opened the flat oar of turbine type etc.In addition, also uniform two or four interior cold aprons in the polymeric kettle kettle.Interior cold apron has not only increased the cooling heat transferring area, and the effect of the mixing baffle of also having held concurrently prevents to be turned round with agitator by the wake turbulence body in the still, has further improved stirring efficiency and heat exchange effect.Because the kettle volume increases and the increase of inventory, cold chuck, semicircle pipe clamp cover and interior cold apron still can not be withdrawn from polymerisation institute liberated heat fully in simple the dependence, at polymeric kettle upper cover top still top condenser is set for this reason, carry out the heat transfer of gas phase media in the still, guarantee that further polymerisation produces removing of heat in the still.
Description of drawings
Fig. 1 is a chuck pvc polymerizer structural representation in the current global mechanism of the present utility model;
Fig. 2 is the jacket structured schematic diagram of sealing spiral deflector band steel welding current global mechanism;
Fig. 3 is the jacket structured schematic diagram of semicircle pipe welding current global mechanism;
Fig. 4 is the jacket structured schematic diagram of angle steel welding current global mechanism;
Fig. 5 is the jacket structured schematic diagram of the stacked welding current global mechanism of semicircle pipe;
Fig. 6 is three leaf swept-back paddle structure schematic diagrames;
Fig. 7 is that four leaves are opened the flat paddle structure schematic diagram of turbine type.
The specific embodiment
Below in conjunction with accompanying drawing concrete structure of the present utility model is further described.
As shown in Figure 1, the utility model comprises mechanical sealing system 1, low head 2, semicircle pipe clamp cover 3, polymeric kettle cylindrical shell 4, interior cold chuck 5, upper cover 6, still top condenser 7, interior cold apron 8, agitator 9, shaft 10.Semicircle pipe clamp cover 3 is welded on the outside of low head 2 and upper cover 6, between semicircle pipe and the semicircle pipe certain clearance can be arranged, and also can adopt semicircle pipe welding current global mechanism structure or the stacked welding current global mechanism of semicircle pipe structure.Feeding recirculated cooling water in semicircle pipe clamp cover 3 cools off low head 2 and upper cover 6.Interior cold chuck 5 is connected on the inwall of polymeric kettle cylindrical shell 4 by the form of welding.
Referring to Fig. 2-Fig. 5, to cold jacket structured describing in several.
Fig. 2 is jacket structured for sealing spiral deflector band steel welding current global mechanism, the inwall welding of spiral deflector one end and polymeric kettle cylindrical shell 4, the other end and the welding of adjacent band steel.
Fig. 3 is jacket structured for semicircle pipe welding current global mechanism, the semicircle pipe is welded on the inwall of polymeric kettle cylindrical shell 4 twist, it is minimum that gap between the two-layer semicircle pipe reaches as far as possible, makes material and semicircle pipe cooling surface contact area reach maximum, forms the structure of current global mechanism.
Fig. 4 is jacket structured for angle steel welding current global mechanism, and angle steel shape in the shape of a spiral covers on the inner surface of polymeric kettle cylindrical shell 4, the inwall welding of back one deck angle steel one side edgefold and polymeric kettle cylindrical shell 4, the knuckle place of one deck angle steel before angle steel opposite side flanging is welded on.
Fig. 5 is that the stacked welding current global mechanism of semicircle pipe is jacket structured, and the arrangement form of semicircle pipe is that semicircle pipe one face down bonding is connected on the inner surface of polymeric kettle cylindrical shell 4, and opposite side is welded on preceding one deck semicircle tube outer surface.
More than the interior cold chuck of several current global mechanism forms, after welding is finished, all to handle the surface that contacts with the material electrobrightening of polishing, guarantee the level and smooth and fineness on surface, to prevent surperficial sizing phenomenon.
Feed cooling waters in the interior cold chuck 5, directly material is cooled off.The chuck form can suitably reduce chuck metal wall thickness in adopting, and reduces the thermal conduction resistance of metallic walls, and then improves the exchange capability of heat of interior cold chuck 5.
Shaft 10 adopts bottom entering type to install by low head 2 bottoms, can reduce the length of shaft 10 like this.Be provided with mechanical sealing system 1 in low head 2 and shaft 10 junctions and seal, thereby prevent that the material in the polymeric kettle cylindrical shell 4 leaks in polymerization process.
Agitator 9 is fixed on the shaft 10, is three leaf swept-back oars referring to agitator 9 blade shapes of Fig. 6, and agitator 9 blade shapes of Fig. 7 are that four leaves are opened the flat oar of turbine type.According to different technological requirements, agitator 9 can adopt individual layer three leaf swept-back oars or individual layer four leaves to open the flat oar of turbine type, and double-deck three leaf swept-back oars, double-deck four leaves are opened the flat oar of turbine type etc.
Two or four interior cold aprons 8 are set on interior cold chuck 5 outer walls, and interior cold apron 8 is the baffle plate of triangular-section, and middle welding diaphragm is as the passage of cooling water outlet and inlet.The effect of mixing baffle of having held concurrently of interior cold apron 8 prevents being turned round by the wake turbulence body in the polymeric kettle cylindrical shell 4.Still top condenser 7 is installed in the top of upper cover 6, carries out the heat transfer of gas phase media in the still, thereby effectively guarantees exothermic the removing of polymerisation in the still.
Claims (12)
1. chuck pvc polymerizer in the current global mechanism, comprise mechanical sealing system (1), low head (2), semicircle pipe clamp cover (3), polymeric kettle cylindrical shell (4), interior cold chuck (5), upper cover (6), still top condenser (7), interior cold apron (8), agitator (9), shaft (10) is characterized in that, cold chuck (5) in being equipped with on the inwall of described polymeric kettle cylindrical shell (4), on interior cold chuck (5) outer wall many interior cold aprons (8) are set, semicircle pipe clamp cover (3) is welded on the outside of low head (2) and upper cover (6), and shaft (10) adopts bottom entering type to install by low head (2) bottom; Low head (2) seals with mechanical sealing system (1) with shaft (10) junction, prevents material from leakage, and agitator (9) is fixed on the shaft (10).
2. according to chuck pvc polymerizer in the described current global mechanism of claim 1, it is characterized in that, in the cold chuck (5) spiral deflector is set in described, this spiral deflector one end is connected with the inwall of polymeric kettle cylindrical shell (4), the other end is connected with adjacent band steel, forms sealing spiral deflector band steel welding current global mechanism structure chuck.
3. according to chuck pvc polymerizer in the described current global mechanism of claim 1, it is characterized in that described interior cold chuck (5) is a spirality semicircle pipe, this semicircle pipe is connected with polymeric kettle cylindrical shell (4) inwall, forms semicircle pipe welding current global mechanism structure chuck.
4. according to chuck pvc polymerizer in the described current global mechanism of claim 1, it is characterized in that, cold chuck (5) is the helical form angle steel in described, this angle steel one side edgefold is connected with polymeric kettle cylindrical shell (4), the opposite side flanging is connected with the knuckle place of preceding one deck angle steel, forms angle steel welding current global mechanism structure chuck.
5. according to chuck pvc polymerizer in the described current global mechanism of claim 1, it is characterized in that, cold chuck (5) is a layered laminate semicircle pipe in described, this semicircle pipe one side is connected with polymeric kettle cylindrical shell (4) inwall, opposite side is connected with preceding one deck semicircle tube outer surface, forms the stacked welding current global mechanism of semicircle pipe structure chuck.
6. according to chuck pvc polymerizer in the described current global mechanism of claim 1, it is characterized in that, gapped or do not have gap or a stacked welding of semicircle pipe between the semicircle pipe of described semicircle pipe clamp cover (3).
7. according to chuck pvc polymerizer in claim 1 or 2 or 3 or 4 or the 5 or 6 described current global mechanisms, it is characterized in that, in described cold chuck (5) in the shape of a spiral shape be welded on the polymeric kettle inwall, welding is finished after all to the polish electrobrightening processing of its surface.
8. according to chuck pvc polymerizer in claim 1 or 2 or 3 or 4 or the 5 or 6 described current global mechanisms, it is characterized in that described agitator (9) is individual layer blade structure or double-layer paddle structure.
9. chuck pvc polymerizer in the described according to Claim 8 current global mechanism is characterized in that, the agitator (9) of described individual layer blade structure is that individual layer three leaf swept-back paddle stirrers or individual layer four leaves are opened the flat paddle stirrer of turbine type.
10. chuck pvc polymerizer in the described according to Claim 8 current global mechanism is characterized in that, the agitator of described double-layer paddle structure (9) is that double-deck three leaf swept-back paddle stirrers or double-deck four leaves are opened the flat paddle stirrer of turbine type.
11., it is characterized in that described interior cold apron (8) is two or four according to chuck pvc polymerizer in any described current global mechanism among the claim 1-10, the cross section of interior cold apron (8) is the triangular-section.
12., it is characterized in that described upper cover (6) top is provided with still top condenser (7) according to chuck pvc polymerizer in the described current global mechanism of claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045285 CN2822760Y (en) | 2005-09-27 | 2005-09-27 | Full flowing internal jecketed type polyvinyl chloride polymerization still |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045285 CN2822760Y (en) | 2005-09-27 | 2005-09-27 | Full flowing internal jecketed type polyvinyl chloride polymerization still |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2822760Y true CN2822760Y (en) | 2006-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520045285 Expired - Lifetime CN2822760Y (en) | 2005-09-27 | 2005-09-27 | Full flowing internal jecketed type polyvinyl chloride polymerization still |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2822760Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463928C (en) * | 2006-12-29 | 2009-02-25 | 锦西化工机械(集团)有限责任公司 | Polyvinyl Chloride resin polymerization kettle equipped with internal jacket |
| CN102898560A (en) * | 2012-09-29 | 2013-01-30 | 中国天辰工程有限公司 | Novel polymerization reaction vessel |
| CN108247882A (en) * | 2018-02-01 | 2018-07-06 | 辽宁华远石化科技有限公司 | Substance law vinyl chloride agitating device |
| CN113856599A (en) * | 2021-10-30 | 2021-12-31 | 安徽华塑股份有限公司 | Temperature control and medium circulating system of polyvinyl chloride polymerization kettle |
-
2005
- 2005-09-27 CN CN 200520045285 patent/CN2822760Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463928C (en) * | 2006-12-29 | 2009-02-25 | 锦西化工机械(集团)有限责任公司 | Polyvinyl Chloride resin polymerization kettle equipped with internal jacket |
| CN102898560A (en) * | 2012-09-29 | 2013-01-30 | 中国天辰工程有限公司 | Novel polymerization reaction vessel |
| CN102898560B (en) * | 2012-09-29 | 2014-05-28 | 中国天辰工程有限公司 | Novel polymerization reaction vessel |
| CN108247882A (en) * | 2018-02-01 | 2018-07-06 | 辽宁华远石化科技有限公司 | Substance law vinyl chloride agitating device |
| CN108247882B (en) * | 2018-02-01 | 2024-03-19 | 辽宁华远石化科技有限公司 | Stirring device for chloroethylene by bulk method |
| CN113856599A (en) * | 2021-10-30 | 2021-12-31 | 安徽华塑股份有限公司 | Temperature control and medium circulating system of polyvinyl chloride polymerization kettle |
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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 |
Granted publication date: 20061004 |
|
| EXPY | Termination of patent right or utility model |