CN213032509U

CN213032509U - External circulation type polymerization reactor without stirring device

Info

Publication number: CN213032509U
Application number: CN202021432162.XU
Authority: CN
Inventors: 唐建兵; 贾宝林; 孙亚光
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-04-23
Anticipated expiration: 2030-07-20

Abstract

An external circulation type polymerization reactor without a stirring device comprises a tank body, a coil heat exchanger, an external circulation pipe and a circulation pump; the tank body is spirally provided with an internal circulation groove along the inner wall from bottom to top, the top of the tank body is provided with a feed inlet, and the bottom of the tank body is provided with a discharge outlet; the uppermost end of the inner circulation groove is provided with an upper circulation port, and the lowermost end of the inner circulation groove is provided with a lower circulation port; the coil heat exchanger is fixedly arranged in the tank body and is uniformly distributed from top to bottom, the water outlet of the heat exchange coil is arranged at one end, and the water inlet of the heat exchange coil is arranged at the lower end; the outer circulating pipe and the circulating pump are fixedly arranged outside the tank body, one end of the outer circulating pipe is communicated with an upper circulating port of the inner circulating groove of the tank body, the other end of the outer circulating pipe is communicated with a lower circulating port of the inner circulating groove of the tank body, and the circulating pump is fixedly installed on the outer circulating pipe. Has the advantages that: the utilization space in the tank body is enlarged, and the arrangement and energy-saving transformation of the heating device are facilitated.

Description

External circulation type polymerization reactor without stirring device

Technical Field

The utility model particularly relates to a polymerization reactor without a stirring device.

Background

In a common polymerization reactor, a stirring device and a heater are indispensable accessory devices, the stirring device is favorable for the circular flow of material solution, the reaction efficiency is improved, and a heating device is used for controlling the temperature of reactants and promoting the generation of polymers. In the existing polymerization reactor, the adopted heater mostly takes an electric heater as a main part, the temperature of the electric heater is easy to control, but the problems of small heating area and large temperature difference of upper solution and lower solution in a reaction kettle exist, the reaction quality is greatly influenced, on the other hand, the volume space in the reaction kettle is limited, and under the influence of a stirring blade device of a stirrer, the electric heating device can only work at a local position, so that the temperature of the solution cannot be uniformly and stably raised in the heating process.

In the existing chemical enterprises, a lot of large-scale equipment has the problem of heat dissipation, a lot of devices for dissipating heat by using water cooling or oil cooling are used, in order to save energy and reduce emission, the redundant heat of the part is enough to complete the heat supply of production equipment such as an image polymerization reactor, and the heat supply transformation is generally realized by adopting a heat exchange coil or a tank body jacket structure. If the structure that adopts heat transfer coil pipe accomplishes polymerization reactor's heat supply transformation, need lay the coil pipe of enough specification in reation kettle to will evenly set up and just can reach the result of use, but receive the influence of agitator device, this structure is hardly laid. If the stirring device is not suitable, the effect of the solution circulating flow in the reaction kettle can not be realized.

Disclosure of Invention

The utility model aims at solving the above-mentioned laying heat exchange coil pipe in polymerization reactor, do not influence the problem that solution circulation flows in the reation kettle again, provide a do not have agitating unit's polymer reactor who combines tank structure to realize solution circulation flow effect in the reation kettle through the external circulation.

In order to achieve the purpose, the technical scheme adopted by the utility model is that an internal circulation groove is spirally arranged along the inner wall of a tank body from top to bottom, an external circulation pipe is arranged outside the tank body and is communicated with the upper part and the lower part of the tank body, and solution in the tank body forms circular flow from top to bottom in the tank body through the external circulation pipe by utilizing a circulation pump; the upper circulation port and the lower circulation port which are communicated with the outer circulation pipe are respectively arranged along the outside tangential direction of the uppermost end and the lowermost end of the inner circulation groove, the solution in the tank flows along the inner circulation groove on the inner wall of the tank body in the circulation process, the inner circulation groove arranged on the inner wall of the tank body forms a spiral fluid path from bottom to top, and the solution in the tank body generates a spiral driving force in the circulation process to drive the solution in the tank body to integrally rotate and flow, which is equivalent to the stirring effect. The specific scheme is as follows:

the utility model relates to an external circulation type polymerization reactor without a stirring device, which comprises a tank body, a coil pipe heat exchanger, an external circulation pipe and a circulation pump; the tank body is spirally provided with an internal circulation groove along the inner wall from bottom to top, the top of the tank body is provided with a feed inlet, and the bottom of the tank body is provided with a discharge outlet; the uppermost end of the inner circulation groove is provided with an upper circulation port, and the lowermost end of the inner circulation groove is provided with a lower circulation port; the coil heat exchanger is fixedly arranged in the tank body and is uniformly distributed from top to bottom, the water outlet of the heat exchange coil is arranged at the upper end, and the water inlet of the heat exchange coil is arranged at the lower end; the outer circulating pipe and the circulating pump are fixedly arranged outside the tank body, one end of the outer circulating pipe is communicated with an upper circulating port of the inner circulating groove of the tank body, the other end of the outer circulating pipe is communicated with a lower circulating port of the inner circulating groove of the tank body, and the circulating pump is fixedly installed on the outer circulating pipe.

Jar body is from up diameter crescent down, makes the inner wall outwards slope set up, and the gradient is not more than 20.

The cross section of the inner circulation groove on the tank body is semicircular, and the depth of the inner circulation groove is larger than the diameters of the upper circulation opening and the lower circulation opening.

The uppermost end position of the internal circulation groove on the tank body is lower than the liquid level.

The upper circulation port and the lower circulation port are arranged on the inner circulation groove, the upper circulation port is arranged along the tangent direction of the bottom of the uppermost end of the inner circulation groove, and the lower circulation port is arranged along the tangent direction of the bottom of the lowermost end of the inner circulation groove.

The utility model has the advantages that: the solution in the tank body circularly flows through the external circulation pipe and the spiral internal circulation groove arranged on the inner wall of the tank body, and a stirring device is not required to be added, so that the utilization space in the tank body is enlarged, and the arrangement of a heating device is facilitated; the heat exchange coil is uniformly laid in the tank body by being put down from top to bottom, so that energy-saving reconstruction can be realized, and the control on temperature in the polymerization reaction process can be improved, thereby improving the production quality.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the longitudinal section structure of the tank body of the present invention;

FIG. 3 is a schematic diagram of a transverse cross-sectional structure of a tank body of the present invention;

in the drawings: the device comprises a tank body 1, an internal circulation groove 11, a feeding hole 12, a discharging hole 13, an upper circulation hole 14, a lower circulation hole 15, a coil heat exchanger 2, a heat exchange coil water outlet 21, a heat exchange coil water inlet 22, an external circulation pipe 3 and a circulation pump 4.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail with reference to the embodiments.

Referring to the attached drawings 1-3, the external circulation type polymerization reactor without a stirring device of the present invention comprises a tank body 1, a coil heat exchanger 2, an external circulation pipe 3 and a circulation pump 4; the tank body 1 is spirally provided with an inner circulation groove 11 from bottom to top along the inner wall, the top of the tank body 1 is provided with a feed inlet 12, and the bottom of the tank body 1 is provided with a discharge outlet 13; an upper circulation port 14 is formed at the uppermost end of the inner circulation groove 11, and a lower circulation port 15 is formed at the lowermost end; the coil heat exchanger 2 is fixedly arranged in the tank body 1 and is uniformly distributed from top to bottom, a heat exchange coil water outlet 21 is arranged at the upper end, and a heat exchange coil water inlet 22 is arranged at the lower end; the external circulation pipe 3 and the circulation pump 4 are fixedly arranged outside the tank body 1, one end of the external circulation pipe 3 is communicated with an upper circulation port 14 of the internal circulation groove 11 of the tank body 1, the other end of the external circulation pipe 3 is communicated with a lower circulation port 15 of the internal circulation groove 11 of the tank body 1, and the circulation pump 4 is fixedly arranged on the external circulation pipe 3.

Jar body 1 is from up the diameter crescent down, makes the inner wall outwards slope set up, and the gradient is not more than 20.

The section of the inner circulation groove 11 on the tank body 1 is semicircular, and the depth of the inner circulation groove is larger than the diameters of the upper circulation opening 14 and the lower circulation opening 15.

The uppermost end position of the internal circulation groove 11 on the tank body 1 is lower than the liquid level.

The upper circulation port 14 and the lower circulation port 15 on the inner circulation groove 11, the upper circulation port 14 is arranged along the tangent direction of the groove bottom at the uppermost end of the inner circulation groove 11, and the lower circulation port 15 is arranged along the tangent direction of the groove bottom at the lowermost end of the inner circulation groove 11.

Examples

The utility model discloses no agitating unit's extrinsic cycle formula polymerization reactor's working process and principle.

As shown in FIGS. 1 and 3, the liquid level of the reaction solution in the tank 1 must be higher than the uppermost end of the circulating bath 11 in the inner wall of the tank 1 so that the upper circulating port 14 is submerged below the liquid level, and after the circulating pump 4 is started, the liquid in the tank 1 is pumped out from the lower circulating port 15 at the bottom of the tank 1 under the pressure of the circulating pump 4 and returned from the upper circulating port 14 at the upper part of the tank 1 to the upper part of the tank 1, thereby completing the circulation. In the process, the solution flow which is thrown into the uppermost end of the inner circulation tank 11 from the upper circulation port 14 enters along the tangential direction of the inner circulation tank 11, under the limitation of the spiral structure of the inner circulation tank 11, the solution flows spirally from top to bottom along the inner circulation tank 11 under the action of pressure, the solution which is pumped out from the lower circulation port 15 flows and is also pumped away along the tangential direction of the lower end of the inner circulation tank 11 when the solution flows spirally downwards along the inner circulation tank 11, and the spiral torque force in the same direction is simultaneously generated at the upper part and the lower part of the solution in the tank body 1 through the spiral solution flows at the upper end and the lower end of the inner circulation tank 11, so that the solution in the tank body 1 is driven to flow. In the process of equipment configuration and installation, the spiral height and the groove depth of the inner circulation groove 11 need to be reasonably set according to the diameter and the height of the tank body 1, and the power of the outer circulation pipe 3 and the circulation pump 4 needs to be configured, so that the spiral force generated by the spiral fluid formed by the outer circulation pipe 3 and the inner circulation groove 11 can drive the solution in the tank body 1 to integrally rotate. In order to improve the spiral force generated by the solution flowing along the spiral structure in the internal circulation groove 11, the inner wall of the tank body 1 is inclined outwards, namely the diameter of the tank body 1 is gradually increased from bottom to top, so that the spiral path formed by the internal circulation groove 11 is changed into a funnel-shaped structure with a large top and a small bottom, and the generation of the spiral force is facilitated.

Because the spiral inner circulation groove 11 that has adopted outer circulating pipe 3 and jar body 1 inner wall to set up has accomplished the solution circulation flow in jar body 1, so reation kettle need not install the agitator device, makes the effective activity space grow in jar body 1 to can follow in jar body 1 and down evenly lay coil heat exchanger 2, coil heat exchanger 2 can combine other heat-dissipating equipment in the chemical production to realize the energy-conserving transformation of waste heat utilization, improves the productivity effect.

Claims

1. An external circulation type polymerization reactor without a stirring device comprises a tank body (1), a coil heat exchanger (2), an external circulation pipe (3) and a circulation pump (4); the tank is characterized in that an inner circulation groove (11) is spirally arranged along the inner wall of the tank body (1) from bottom to top, a feed inlet (12) is formed in the top of the tank body (1), and a discharge outlet (13) is formed in the bottom of the tank body (1); an upper circulation port (14) is formed in the uppermost end of the inner circulation groove (11), and a lower circulation port (15) is formed in the lowermost end of the inner circulation groove; the coil heat exchangers (2) are fixedly arranged in the tank body (1) and are uniformly distributed from top to bottom, the water outlets (21) of the heat exchange coils are arranged at the upper ends, and the water inlets (22) of the heat exchange coils are arranged at the lower ends; the outer circulating pipe (3) and the circulating pump (4) are fixedly arranged outside the tank body (1), one end of the outer circulating pipe (3) is communicated with an upper circulating opening (14) of an inner circulating groove (11) of the tank body (1), the other end of the outer circulating pipe is communicated with a lower circulating opening (15) of the inner circulating groove (11) of the tank body (1), and the circulating pump (4) is fixedly installed on the outer circulating pipe (3).

2. The external circulation type polymerization reactor without agitation apparatus according to claim 1, wherein said tank (1) is gradually increased in diameter from bottom to top with the inner wall thereof being inclined to the outside by an inclination of not more than 20 °.

3. The external circulation type polymerization reactor without agitation apparatus according to claim 1, wherein the inner circulation groove (11) of said tank body (1) has a semicircular cross-section and a depth larger than the diameter of said upper circulation port (14) and said lower circulation port (15).

4. The external circulation type polymerization reactor without agitation apparatus according to claim 1 wherein the uppermost position of the internal circulation tank (11) of said tank body (1) is located lower than the liquid level.

5. The external circulation type polymerization reactor without agitation apparatus according to claim 1, wherein the upper circulation port (14) and the lower circulation port (15) are provided in the internal circulation tank (11), the upper circulation port (14) is provided in a tangential direction of a bottom of the uppermost tank of the internal circulation tank (11), and the lower circulation port (15) is provided in a tangential direction of a bottom of the lowermost tank of the internal circulation tank (11).