CN204841640U - Reation kettle heat sink - Google Patents
Reation kettle heat sink Download PDFInfo
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- CN204841640U CN204841640U CN201520519825.4U CN201520519825U CN204841640U CN 204841640 U CN204841640 U CN 204841640U CN 201520519825 U CN201520519825 U CN 201520519825U CN 204841640 U CN204841640 U CN 204841640U
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- heat sink
- cooling
- tube
- cooling tube
- pipe
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model belongs to the technical field of mechanical equipment and specifically relates to a reation kettle heat sink, including installing at the reation kettle first heat sink in center and installing the second heat sink in the reation kettle bottom, first heat sink includes interior coil pipe, the outlet pipe of coil pipe lower extreme including the inlet tube, intercommunication of coil pipe upper end including the intercommunication, the second heat sink includes cooling tube and condenser tube, the cooling tube is located condenser tube, and discharging pipe and chain extension reation kettle intercommunication are passed through through inlet pipe and reation kettle intercommunication, cooling tube lower extreme in the cooling tube upper end. The cooling water passes through the inlet tube and flows into interior coil pipe, interior coil pipe absorption heat volume to taking out of through the outlet pipe, once lowering the temperature, once the reaction liquid after the cooling passes through in the inlet pipe flows into the cooling tube, and the cooling tube lies in condenser tube, and the heat with the cooling tube that the cooling water that flows among the condenser tube is not stopped is taken away, and then makes reaction liquid carry out the secondary cooling in the cooling tube. Polyester polyols has realized rapid cooling from 250 DEG C of time greatly reduced that fall to below 100 DEG C.
Description
Technical field
The utility model relates to technical field of mechanical equipment, especially a kind of reactor heat sink.
Background technology
PEPA (PET) reaction temperature is at about 250 DEG C, and at the follow-up technological temperature reacted with chain extender at 100 DEG C, therefore need to lower the temperature to PEPA, traditional is realize cooling by the inner coil pipe by cooling water in reactor, but because polyester polyol molecule amount is large, viscosity is large, and heet transfer rate is low, PEPA reduces by less than 100 DEG C at 250 DEG C needs nearly 10 hours, inefficiency.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and provides a kind of reasonable in design, and structure is simple, the reactor heat sink of fast cooling.
The technical scheme in the invention for solving the above technical problem is: a kind of reactor heat sink, comprise the second heat sink being arranged on reactor center first heat sink and being arranged on bottom reactor, described first heat sink comprises inner coil pipe, be communicated with water inlet pipe in inner coil pipe upper end, be communicated with outlet pipe in inner coil pipe lower end, described second heat sink comprises cooling tube and cooling water pipe, described cooling tube is positioned at cooling water pipe, cooling tube upper end is communicated with reactor by feed pipe, and cooling tube lower end is communicated with chain extending reaction still by discharge nozzle.Cooling water flows into inner coil pipe by water inlet pipe, inner coil pipe absorbs heat, and taken out of by outlet pipe, once lower the temperature, the reactant liquor once after cooling is flowed in cooling tube by feed pipe, and cooling tube is positioned at cooling water pipe, the heat of cooling tube is ceaselessly taken away by the cooling water flowed in cooling water pipe, and then making reactant liquor carry out reducing temperature twice in cooling tube, reactant liquor reduced greatly from the time that 250 DEG C drop to less than 100 DEG C, achieved fast cooling.
As preferably, cooling tube is one or more, by the shunting of multiple cooling tube realization response liquid, reaches the effect of fast cooling.
As preferably, described cooling tube is coil pipe or straight tube.
As preferably, described discharge nozzle is provided with for the detection table of detected temperatures with for controlling the control valve that discharge nozzle is closed or opened, the convenient temperature controlling out-feed liquid, completes follow-up reaction.
The utility model compared with prior art, has the following advantages and effect: 1, carry out reducing temperature twice, fast cooling by the first heat sink and the second heat sink; 2, by arranging multiple cooling tube, the shunting of realization response liquid, reaches the effect of fast cooling; 3, the detection table of detected temperatures and the setting of control valve on discharge nozzle, the convenient temperature controlling out-feed liquid, completes follow-up reaction.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
In figure: reactor 1, first heat sink 2, inner coil pipe 21, water inlet pipe 22, outlet pipe 23, second heat sink 3, cooling tube 31, feed pipe 32, discharge nozzle 33, cooling water pipe 34, chain extending reaction still 4, detection table 5, control valve 6.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
See Fig. 1, reactor heat sink in the present embodiment, comprise the second heat sink 3 being arranged on reactor 1 center first heat sink 2 and being arranged on bottom reactor 1, first heat sink 2 comprises inner coil pipe 21, be communicated with the water inlet pipe 22 in inner coil pipe 21 upper end, be communicated with the outlet pipe 23 in inner coil pipe 21 lower end, second heat sink 3 comprises cooling water pipe 34 cooling tube 31 identical with three, three cooling tubes 31 are side by side in cooling water pipe 34, each cooling tube 31 upper end is all communicated with reactor 1 by a feed pipe 32, each cooling tube 31 lower end is all communicated with chain extending reaction still 4 by a discharge nozzle 33.Water inlet pipe 22 introduces cooling water from reactor 1, the heat of reactant liquor is taken out of through outlet pipe 23 through inner coil pipe 21 by cooling water flow, once lower the temperature, reactant liquor once after cooling flows in three cooling tubes 31 by three feed pipes 32 respectively, and cooling tube 31 is positioned at cooling water pipe 34, in cooling water pipe 34, the heat of cooling tube 31 is ceaselessly taken away by the cooling water of flowing, and then makes reactant liquor carry out reducing temperature twice in cooling tube 31, finally flow into chain extending reaction still 4, carry out subsequent reactions.PEPA shortened in 2 hours from the time that 250 DEG C drop to less than 100 DEG C by original 10 hours, achieved fast cooling.
The present embodiment cooling tube 31 is coil pipe, and area of dissipation is large, rapid heat dissipation.
The present embodiment discharge nozzle 33 is provided with for the detection table 5 of detected temperatures with for controlling the control valve 6 that discharge nozzle 33 is closed or opened, the convenient temperature controlling out-feed liquid, completes follow-up reaction.
Reactant liquor described in the utility model all refers to PEPA.
In addition, it should be noted that, the equivalence change that all structures according to the utility model inventional idea, feature and principle are done or simple change, be included in the protection domain of the utility model patent.
Claims (4)
1. a reactor heat sink, it is characterized in that: comprise the second heat sink being arranged on reactor center first heat sink and being arranged on bottom reactor, described first heat sink comprises inner coil pipe, be communicated with water inlet pipe in inner coil pipe upper end, be communicated with outlet pipe in inner coil pipe lower end, described second heat sink comprises cooling tube and cooling water pipe, described cooling tube is positioned at cooling water pipe, cooling tube upper end is communicated with reactor by feed pipe, and cooling tube lower end is communicated with chain extending reaction still by discharge nozzle.
2. reactor heat sink according to claim 1, is characterized in that: described cooling tube is one or more.
3. reactor heat sink according to claim 1, is characterized in that: described cooling tube is coil pipe or straight tube.
4. reactor heat sink according to claim 1, is characterized in that: described discharge nozzle is provided with for the detection table of detected temperatures with for controlling the control valve that discharge nozzle is closed or opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519825.4U CN204841640U (en) | 2015-07-17 | 2015-07-17 | Reation kettle heat sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519825.4U CN204841640U (en) | 2015-07-17 | 2015-07-17 | Reation kettle heat sink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204841640U true CN204841640U (en) | 2015-12-09 |
Family
ID=54732238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520519825.4U Active CN204841640U (en) | 2015-07-17 | 2015-07-17 | Reation kettle heat sink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204841640U (en) |
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2015
- 2015-07-17 CN CN201520519825.4U patent/CN204841640U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |