CN213611294U

CN213611294U - Polymer polyol reation kettle heat exchanger that circulates

Info

Publication number: CN213611294U
Application number: CN202022083019.0U
Authority: CN
Inventors: 张克深
Original assignee: Ji'an Innovation Polyurethane Technology Co ltd
Current assignee: Ji'an Innovation Polyurethane Technology Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-07-06
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses a polymer polyol reation kettle heat transfer circulation ware, including heat conduction fin, the heat exchange tube, the fin groove, a weighing sensor and a temperature sensor, outlet pipe and first water tank, the circulating water of water pump in with first water tank is sent into in the heat exchange tube, get into in the circulating water of heat exchange tube gets into the third water tank after the delivery port flows out, the second heating member of third water tank bottom heats the circulating water, get into the second water tank after third water tank water overflows, the first heating member of second water tank bottom carries out secondary heating to the circulating water, the water overflows after the back gets into the pipeline, get into first water tank after the pipeline discharges, the circulating water carries out rough mixing in first water tank and gets into in the outlet pipe, final water pump is sent the circulating water into the heat exchange tube once more, accomplish circulation heat transfer. This heat transfer device sets up the heat conduction fin in the heat exchange tube outside, changes the pure air heat conduction part originally into metal heat conduction, has improved the heat conduction efficiency of heat exchanger.

Description

Polymer polyol reation kettle heat exchanger that circulates

Technical Field

The utility model relates to a heat exchanger specifically is a polymer polyol reation kettle heat transfer circulation ware.

Background

The polymer polyol is a stable dispersion system in which independent polymer particles which are not contacted with each other are dispersed in polyether polyol or polyester polyol, and is one of important raw materials of polyurethane products, so that the application range is wide, and the using amount is large. In the preparation process of the polymer polyol, the initiator needs to be added into a reaction kettle to react at a certain temperature and a certain air pressure.

However, most of the existing polymer polyol reaction kettle circulating heat exchangers are straight-through tubular heat exchangers, and the heat exchange efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a polymer polyol reation kettle heat transfer ware to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a polymer polyol reaction kettle circulating heat exchanger comprises a heat exchange tube, wherein a reaction kettle is arranged on the inner side of the heat exchange tube, the heat exchange tube is spirally wound on the periphery of the reaction kettle, a plurality of heat conduction fins are arranged on the periphery of the reaction kettle, a shell is arranged on the outer side of each heat conduction fin, the inner sides of the heat conduction fins are in close contact with the reaction kettle, the heat conduction fins are vertically arranged, two ends of each heat conduction fin are fixedly arranged at the top and the bottom of the shell, a plurality of fin grooves used for being in close contact with the heat exchange tube are arranged on the heat conduction fins, a plurality of through holes are formed in the heat conduction fins, the reaction kettle is fixedly arranged in the shell, the heat exchange tube is also arranged in the shell, the heat exchange tube is movably arranged on the outer wall of the reaction kettle, and through, a water inlet pipe is arranged on one side of the shell, the bottom end of the heat exchange pipe penetrates through a through hole in the bottom of the shell and is connected with one end of the water inlet pipe in a pipe mode, a flow regulating valve and a temperature sensor are arranged on the water inlet pipe, the other end of the water inlet pipe is fixedly connected with a water outlet of a water pump, a water inlet of the water pump is fixedly connected with one end of a water outlet pipe, the other end of the water outlet pipe is fixedly connected with a water outlet in the bottom of a first water tank, a water inlet is formed in one side of the first water tank, the water inlet of the first water tank is fixedly connected with one end of a pipeline, a second water tank and a third water tank are arranged on the top of the first water tank, the other end of the pipeline is fixedly connected with a water outlet of the second water tank, a first heating element is, baffle fixed mounting is in the bottom of second water tank, and highly is less than second water tank and third water tank, the bottom of third water tank is provided with the second heating member, the water inlet of third water tank passes through the pipeline pipe connector with the heat exchange tube, the outside of first water tank is provided with switch and controller.

As a further aspect of the present invention: the heat conduction fins are distributed along the circumferential direction of the reaction kettle and can be made of aluminum alloy or other metal materials with high heat conductivity.

As a further aspect of the present invention: the feed inlet that is used for with inlet pipe fixed connection is seted up at the reation kettle top, reation kettle bottom offer be used for with the fixed connection's of discharging pipe discharge gate, install the bleeder valve on the discharging pipe.

As a further aspect of the present invention: all pipelines and the outside of the tank body are all provided with heat preservation layers, and the heat preservation layers are made of high-temperature-resistant plastics.

As a further aspect of the present invention: temperature sensor, water pump, first heating member and second heating member all are connected through wire and controller electricity, the controller passes through the wire and is connected with the switch electricity, the switch passes through the wire and is connected with external power supply electricity.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model utilizes the heat exchange tube spirally wound on the periphery of the reaction kettle and the heat conduction fin arranged outside the heat exchange tube to convert the air heat conduction part into metal heat conduction, thereby improving the heat conduction efficiency of the heat exchanger;

2. the utility model is provided with the first heating element and the second heating element to carry out secondary heating on the circulating water, the secondary heating process ensures that the circulating water can reach the required temperature quickly, and the phenomenon of overhigh local water temperature can not be generated, thereby being beneficial to the regulation and control of the reaction temperature of the reaction kettle;

3. the utility model discloses set up the temperature that temperature sensor can real time monitoring get into the circulating water of heat exchange tube, when the high temperature or cross low, can adjust the heating power of first heating member and second heating member through the controller, finally guarantee that reation kettle moves under a invariable temperature.

Drawings

FIG. 1 is a schematic structural diagram of a polymer polyol reactor circulation heat exchanger.

FIG. 2 is a schematic structural view of heat conducting fins in a polymer polyol reactor circulation heat exchanger.

FIG. 3 is a top view of heat exchange tubes and heat transfer fins in a polymer polyol reactor cycle heat exchanger.

Shown in the figure: the device comprises a feeding pipe 1, a shell 2, a reaction kettle 3, a heat conduction fin 4, a heat exchange pipe 5, a fin groove 6, a temperature sensor 7, a water inlet pipe 8, a flow regulating valve 9, a discharge pipe 10, a water pump 11, a water outlet pipe 12, a first water tank 13, a pipeline 14, a first heating element 15, a switch 16, a second water tank 17, a baffle 18, a third water tank 19, a through hole 20, a controller 21 and a second heating element 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a polymer polyol reactor circulation heat exchanger includes a feeding pipe 1, a shell 2, a reactor 3, heat conducting fins 4, a heat exchanging pipe 5, a fin groove 6, a temperature sensor 7, a water inlet pipe 8, a flow regulating valve 9, a discharging pipe 10, a water pump 11, a water outlet pipe 12, a first water tank 13, a pipeline 14, a first heating element 15, a switch 16, a second water tank 17, a baffle 18, a third water tank 19, a through hole 20, a controller 21, and a second heating element 22, the inner side of the heat exchanging pipe 5 is provided with the reactor 3, the heat exchanging pipe 5 is spirally wound around the periphery of the reactor 3, the periphery of the reactor 3 is provided with a plurality of heat conducting fins 4, the outer side of the heat conducting fins 4 is provided with the shell 2, the inner side of the heat conducting fins 4 is in close contact with the reactor 3, the, the two ends of the heat conducting fins 4 are fixedly arranged at the top and the bottom of the shell 2, the heat conducting fins 4 are distributed along the circumferential direction of the reaction kettle 3, the heat conducting fins 4 can be made of aluminum alloy or other metal materials with high thermal conductivity, a plurality of fin grooves 6 used for being in close contact with the heat exchanging pipe 5 are arranged on the heat conducting fins 4, a plurality of through holes 20 are formed in the heat conducting fins 4, the reaction kettle 3 is fixedly arranged in the shell 2, a feed inlet used for being fixedly connected with the feed pipe 1 is formed in the top of the reaction kettle 3, a discharge outlet used for being fixedly connected with the discharge pipe 10 is formed in the bottom of the reaction kettle 3, a discharge valve is arranged on the discharge pipe 10, the heat exchanging pipe 5 is also arranged in the shell 2, the heat exchanging pipe 5 is movably arranged on the outer wall of the reaction kettle 3, and through holes used for the heat, a water inlet pipe 8 is arranged on one side of the shell 2, a through hole in the bottom of the shell 2 is penetrated through by the bottom end of the heat exchange pipe 5 and is connected with one end of the water inlet pipe 8 through a pipe, a flow regulating valve 9 and a temperature sensor 7 are arranged on the water inlet pipe 8, the other end of the water inlet pipe 8 is fixedly connected with a water outlet of a water pump 11, a water inlet of the water pump 11 is fixedly connected with one end of a water outlet pipe 12, the other end of the water outlet pipe 12 is fixedly connected with a water outlet of the bottom of a first water tank 13, a water inlet is arranged on one side of the first water tank 13, the water inlet of the first water tank 13 is fixedly connected with one end of a pipeline 14, a second water tank 17 and a third water tank 19 are arranged on the top of the first water tank 13, the other end of the pipeline 14 is fixedly connected with a water outlet of the, the third water tank 19 and the second water tank 17 are separated by a baffle 18, the baffle 18 is fixedly installed at the bottom of the second water tank 17 and is lower than the second water tank 17 and the third water tank 19 in height, a second heating element 22 is arranged at the bottom of the third water tank 19, a water inlet of the third water tank 19 is connected with the heat exchange tube 5 through a pipeline pipe, heat insulation layers are arranged on the outer sides of all pipelines and the tank body and are made of high-temperature-resistant plastic materials, a switch 16 and a controller 21 are arranged on the outer side of the first water tank 13, the temperature sensor 7, the water pump 11, the first heating element 15 and the second heating element 22 are electrically connected with the controller 21 through wires, the controller 21 is electrically connected with the switch 16 through wires, the switch 16 is electrically connected with an external power supply through wires, the type of the temperature sensor 7 is PT100, and a manufacturer is a tin-free mass-measuring sensor technology limited company, the controller 21 is S-1200, and the manufacturer is German Siemens.

The utility model discloses a theory of operation is:

when the circulating heat exchanger is needed to be used in the process of using the reaction kettle, the switch 16 is turned on, the circulating water in the first water tank 13 is sent into the heat exchange tube 5 by using the water pump 11, the circulating water entering the heat exchange tube 5 flows out of the water outlet and then enters the third water tank 19, the second heating element 22 at the bottom of the third water tank 19 heats the circulating water, the third water tank 19 overflows and then enters the second water tank 17, the first heating element 15 at the bottom of the second water tank 17 heats the circulating water for the second time, the overflowing water enters the pipeline 14 and then enters the first water tank 13 after being discharged from the pipeline 14, the circulating water is roughly mixed in the first water tank 13 and then enters the water outlet pipe 12, and finally the circulating water is sent into the heat exchange tube 5 again by using the water pump 11 to finish circulating heat exchange; the heat exchange device is provided with the heat conduction fins 4 outside the heat exchange tube 5, so that the heat conduction part of air is converted into metal heat conduction, and the heat conduction efficiency of the heat exchanger is improved; the first heating element 15 and the second heating element 22 are arranged to carry out secondary heating on the circulating water, and the secondary heating process ensures that the circulating water can reach the required temperature quickly, does not generate the phenomenon of overhigh local water temperature and is beneficial to regulating and controlling the reaction temperature of the reaction kettle; the temperature sensor 7 is arranged to monitor the temperature of the circulating water entering the heat exchange pipe 5 in real time, and when the temperature is too high or too low, the heating power of the first heating element 15 and the second heating element 22 can be adjusted by the controller 21, so as to finally ensure that the reaction kettle operates at a constant temperature.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A polymer polyol reation kettle circulation heat exchanger, includes heat exchange tube (5), its characterized in that: the inner side of the heat exchange tube (5) is provided with a reaction kettle (3), the heat exchange tube (5) is spirally wound on the periphery of the reaction kettle (3), the periphery of the reaction kettle (3) is provided with a plurality of heat conduction fins (4), the outer side of the heat conduction fins (4) is provided with a shell (2), the inner side of the heat conduction fins (4) is in close contact with the reaction kettle (3), the heat conduction fins (4) are vertically arranged, the two ends of the heat conduction fins (4) are fixedly arranged at the top and the bottom of the shell (2), the heat conduction fins (4) are provided with a plurality of fin grooves (6) which are used for being in close contact with the heat exchange tube (5), the heat conduction fins (4) are provided with a plurality of through holes (20), the reaction kettle (3) is fixedly arranged in the shell (2), the heat exchange tube (5) is also arranged in the shell (2), and the heat exchange tube (5) is movably arranged on the outer, the water-saving and heat-exchange water tank is characterized in that a through hole for penetrating through a heat exchange tube (5) is formed in the bottom and the top of the side face of the shell (2), a water inlet tube (8) is arranged on one side of the shell (2), the bottom end of the heat exchange tube (5) penetrates through the through hole in the bottom of the shell (2) and is connected with one end of the water inlet tube (8) in a pipe mode, a flow regulating valve (9) and a temperature sensor (7) are arranged on the water inlet tube (8), the other end of the water inlet tube (8) is fixedly connected with a water outlet of a water pump (11), the water inlet of the water pump (11) is fixedly connected with one end of a water outlet tube (12), the other end of the water outlet tube (12) is fixedly connected with a water outlet in the bottom of a first water tank (13), a water inlet is formed in one side of the first water tank (13), the water inlet of the first water tank (, the other end of pipeline (14) and the delivery port fixed connection of second water tank (17), second water tank (17) bottom is provided with first heating member (15), one side of second water tank (17) is provided with third water tank (19), separate by baffle (18) between third water tank (19) and second water tank (17), baffle (18) fixed mounting is in the bottom of second water tank (17), and highly is less than second water tank (17) and third water tank (19), the bottom of third water tank (19) is provided with second heating member (22), the water inlet and heat exchange tube (5) of third water tank (19) pass through the pipeline pipe connector, the outside of first water tank (13) is provided with switch (16) and controller (21).

2. The polymer polyol reactor cycle heat exchanger of claim 1, wherein: the heat conduction fins (4) are distributed along the circumferential direction of the reaction kettle (3), and the heat conduction fins (4) can be made of aluminum alloy or other metal materials with high heat conductivity.

3. The polymer polyol reactor cycle heat exchanger of claim 1, wherein: the feed inlet that is used for with inlet pipe (1) fixed connection is seted up at reation kettle (3) top, reation kettle (3) bottom is seted up and is used for the fixed connection's with discharging pipe (10) discharge gate, install the bleeder valve on discharging pipe (10).

4. The polymer polyol reactor cycle heat exchanger of claim 1, wherein: all pipelines and the outside of the tank body are all provided with heat preservation layers, and the heat preservation layers are made of high-temperature-resistant plastics.

5. The polymer polyol reactor cycle heat exchanger of claim 1, wherein: temperature sensor (7), water pump (11), first heating member (15) and second heating member (22) all are connected with controller (21) electricity through the wire, controller (21) are connected with switch (16) electricity through the wire, switch (16) are connected with external power supply electricity through the wire.