Packed tower for polyester synthesis

Abstract

The packed tower comprises an outer cylinder, an inner cylinder is arranged on the inner wall of the outer cylinder, a cavity is formed between the outer cylinder and the inner cylinder, the bottoms and the tops of the outer cylinder and the inner cylinder pass through a first plugging seat and a second plugging seat respectively, the outer wall of the outer cylinder is fixedly connected with a temperature control assembly, and the temperature control assembly comprises a cooling liquid bin. A supporting table is arranged on the outer wall of the side, close to the outer cylinder, of the cooling liquid bin, a first circulating pump and a second circulating pump which are used for circulating cooling liquid in the cooling liquid bin and the cavity are fixedly installed on the outer wall of the top of the supporting table, a backflow pipe is fixedly connected to the outer wall of the outer cylinder, and the output end of the backflow pipe is fixedly connected with a radiator.

Description

Technical Field

[0001] The utility model relates to the technical field of a packing tower for polyester synthesis, in particular to a packing tower for polyester synthesis. Background Art

[0002] When conducting polyester synthesis operations, polyester materials are generally generated through a condensation reaction between polyols and polyacids. During the condensation reaction, a large amount of heat is easily generated. During the operation of the packing tower, excessively high temperature will inhibit the reaction rate, which is not conducive to improving the working efficiency of the equipment. Existing packing towers for polyester synthesis generally have a single-layer structure, which is not convenient for flexible heat dissipation of the surface of the tower body. As a result, during the reaction process, due to excessively high temperature, intermittent use is required, which is not convenient for continuous operation. If the temperature is too high, there is a risk of explosion of the polyester synthesis packing tower, which poses certain safety hazards. It is inconvenient to regulate the internal temperature of the polyester synthesis packing tower, and it is not convenient for continuous, safe and stable operation. Utility Model Content

[0003] The utility model aims to provide a packing tower for polyester synthesis.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model discloses a packing tower for polyester synthesis, comprising an outer cylinder, an inner cylinder being arranged on the inner wall of the outer cylinder, a cavity being arranged between the outer cylinder and the inner cylinder, the bottom and the top of the outer cylinder and the inner cylinder being respectively connected through a first plugging seat and a second plugging seat, the outer wall of the outer cylinder being fixedly connected to a temperature control component, the temperature control component comprising a coolant tank, a support platform being arranged on the outer wall of the coolant tank close to the outer cylinder, a first circulation pump and a second circulation pump being fixedly installed on the outer wall of the top of the support platform for circulating the coolant in the coolant tank and the coolant in the cavity, a reflux pipe being fixedly connected to the outer wall of the outer cylinder, and an output end of the reflux pipe being fixedly connected to a radiator.

[0006] Furthermore, the top of the coolant tank is plugged into a top cover, a handle is fixedly mounted on the top outer wall of the top cover, an air hole is provided on the inner wall of the top cover, and the input end of the first circulation pump is connected to the inner wall of the bottom end of the coolant tank through a first conduit.

[0007] Furthermore, the output end of the first circulation pump is connected to the inner wall of the outer cylinder through a second conduit, the input end of the second circulation pump is connected to the inner wall of the outer cylinder through a third conduit, and the output end of the second circulation pump is connected to the inner wall of the bottom end of the coolant tank through a fourth conduit.

[0008] Furthermore, the radiator includes a shunt pipe and a collector pipe, capillaries are evenly fixedly installed between the shunt pipe and the collector pipe, the capillary material is set to be metal copper, there are several capillaries, and a support frame is fixedly installed on the top outer wall of the coolant tank.

[0009] Furthermore, a cooling fan group is fixedly installed on the inner wall of the support frame, and a plurality of cooling fans are arranged inside the cooling fan group. The cooling fan group is located below the capillary tube, and the support frame supports the bottom of the shunt pipe and the converging pipe.

[0010] Furthermore, a liquid inlet pipe is fixedly installed on the top of the inner cylinder, a nozzle is fixedly installed on the output end of the liquid inlet pipe, a liquid return cylinder is fixedly installed on the inner wall of the bottom of the inner cylinder, the bottom of the liquid return cylinder is fixedly connected to the liquid outlet pipe, and the inner wall of the bottom of the inner cylinder is fixedly connected to the air inlet pipe.

[0011] Furthermore, a valve is installed on the outer wall of the liquid outlet pipe, a liquid level meter is fixedly connected to the outer wall of the liquid return cylinder, a stuffing rack is fixedly installed on the inner wall of the inner cylinder, two groups of stuffing racks are symmetrically arranged up and down, and a redistributor is arranged between the two groups of stuffing racks.

[0012] In the above technical scheme, the polyester synthesis packing tower provided by the utility model has the following beneficial effects:

[0013] 1. By setting a temperature control component, the coolant is transported in the cavity between the outer tube and the inner tube, so that the coolant performs liquid cooling and heat dissipation on the outer wall of the inner tube. The coolant flows back to the coolant tank through the reflux pipe, and the coolant is cooled by the radiator, so that the coolant can continuously dissipate heat during the synthesis reaction, which is convenient for maintaining a suitable reaction environment inside the inner tube;

[0014] 2. By setting up a second circulation pump, it is used to control the coolant in the cavity to flow back to the coolant tank, so as to control the amount of coolant in the cavity, thereby controlling the flexible adjustment of the temperature of the outer wall of the inner cylinder, thereby improving the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the main structure of a packing tower for polyester synthesis provided by an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the top view of a packing tower for polyester synthesis provided in an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the decomposed structure of a packing tower for polyester synthesis provided by an embodiment of the utility model;

[0019] Figure 4 A schematic structural diagram of a temperature control component of a packed tower for polyester synthesis provided in an embodiment of the utility model.

[0020] In the figure: outer cylinder 100, inner cylinder 110, first blocking seat 120, second blocking seat 130, air inlet pipe 140, liquid inlet pipe 150, nozzle 151, filling frame 160, re-distributor 170, liquid return cylinder 180, liquid level meter 181, liquid outlet pipe 182, valve 183, coolant tank 200, top cover 201, handle 202, first circulation pump 210, second circulation pump 220, support frame 230, cooling fan assembly 240, reflux pipe 250, shunt pipe 260, capillary 261, and confluence pipe 262. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] Embodiment 1:

[0023] See also Figure 1-Figure 3 As shown;

[0024] The utility model discloses a packing tower for polyester synthesis, comprising an outer cylinder 100, an inner cylinder 110 is arranged on the inner wall of the outer cylinder 100, a cavity is arranged between the outer cylinder 100 and the inner cylinder 110, the bottom and the top of the outer cylinder 100 and the inner cylinder 110 are respectively connected by a first plugging seat 120 and a second plugging seat 130, the outer wall of the outer cylinder 100 is fixedly connected to a temperature control component, the temperature control component comprises a coolant tank 200, a support platform is arranged on the outer wall of the tank 200 close to the outer cylinder 100, a first circulation pump 210 and a second circulation pump 220 for circulating the coolant tank 200 and the coolant inside the cavity are fixedly installed on the outer wall of the top of the support platform, a reflux pipe 250 is fixedly connected to the outer wall of the outer cylinder 100, the output end of the reflux pipe 250 is fixedly connected to the radiator, and the temperature control component is arranged to perform water cooling on the outer wall of the inner cylinder 110, so as to keep the inner wall of the inner cylinder 110 at a suitable temperature during the reaction, thereby promoting the reaction speed.

[0025] Embodiment 2:

[0026] See also Figure 3-Figure 4 As shown;

[0027] The utility model of a packing tower for polyester synthesis comprises a top cover 201 which is plugged and connected to the top of a coolant liquid tank 200, a handle 202 is fixedly installed on the top outer wall of the top cover 201, an air vent is opened on the inner wall of the top cover 201, an input end of a first circulating pump 210 is connected to the inner wall of the bottom end of the coolant liquid tank 200 through a first conduit, and an output end of the first circulating pump 210 is connected to the inner wall of an outer cylinder 100 through a second conduit. The first circulating pump 210 is provided to transport the coolant to the cavity between the outer cylinder 100 and the inner cylinder 110. , the outer wall of the inner tube 110 is liquid-cooled and dissipated, the input end of the second circulating pump 220 is connected to the inner wall of the outer tube 100 through the third conduit, and the output end of the second circulating pump 220 is connected to the inner wall of the bottom end of the coolant tank 200 through the fourth conduit. The first conduit, the second conduit, the third conduit, and the fourth conduit are all provided with a one-way valve. By setting the second circulating pump 220, the coolant in the cavity is transported to the coolant tank 200, and the amount of coolant in the cavity is reduced, thereby realizing the control of the temperature inside the inner tube 110.

[0028] Embodiment three:

[0029] See also Figure 3-Figure 4 As shown;

[0030] The utility model is a packing tower for polyester synthesis, wherein the radiator comprises a shunt pipe 260 and a converging pipe 262, wherein capillaries 261 are evenly fixedly installed between the shunt pipe 260 and the converging pipe 262, wherein the material of the capillaries 261 is set to be metal copper, wherein a plurality of capillaries 261 are provided, wherein a support frame 230 is fixedly installed on the outer wall of the top of the coolant liquid tank 200, wherein a cooling fan group 240 is fixedly installed on the inner wall of the support frame 230, wherein a plurality of cooling fans are provided inside the cooling fan group 240, wherein the cooling fan group 240 is located below the capillaries 261, and wherein the support frame 230 is fixedly installed on the outer wall of the top of the coolant liquid tank 200, wherein the cooling fan group 240 is fixedly installed on the inner wall of the support frame 230, wherein a plurality of cooling fans are provided inside the cooling fan group 240, wherein the cooling fan group 240 is located below the capillaries 261, and wherein the support frame 230 is fixedly installed on the outer wall of the coolant liquid tank 200, wherein the cooling fan group 240 is fixedly installed on the inner wall of the support frame 230, wherein the cooling fan group 240 is fixedly installed on the inner wall of the cooling fan group 24 ... 0 and the bottom of the manifold 262 are supported, and the coolant in the cavity flows back to the shunt pipe 260, the capillary 261, and the manifold 262 through the reflux pipe 250 for heat dissipation. The capillary 261 is provided to increase the contact area between the coolant and the inner wall of the capillary 261, thereby accelerating the heat exchange efficiency and facilitating the heat dissipation of the coolant. After the coolant is cooled, the coolant flows back to the coolant tank 200, thereby maintaining the continuous heat dissipation effect of the coolant. The surface of the capillary 261 is cooled by air by turning on the cooling fan, thereby achieving the speed of increasing the heat dissipation of the coolant.

[0031] Embodiment 4:

[0032] See also Figure 4 As shown;

[0033] The utility model is a packing tower for polyester synthesis, wherein a liquid inlet pipe 150 is fixedly installed on the top of an inner cylinder 110, a nozzle 151 is fixedly installed on the output end of the liquid inlet pipe 150, and a liquid material is introduced into the inner cylinder 110 through the liquid inlet pipe 150 and the nozzle 151, so that the liquid material is sprayed onto the surface of a packing frame 160, and then falls into a re-distributor 170 after passing through the upper packing frame 160, a liquid return cylinder 180 is fixedly installed on the inner wall of the bottom of the inner cylinder 110, a liquid outlet pipe 182 is fixedly connected to the bottom of the liquid return cylinder 180, an air inlet pipe 140 is fixedly connected to the inner wall of the bottom of the inner cylinder 110, a valve 183 is installed on the outer wall of the liquid outlet pipe 182, and a liquid level meter 181 is fixedly connected to the outer wall of the liquid return cylinder 180 A filling rack 160 is fixedly installed on the inner wall of the inner cylinder 110. Two groups of filling racks 160 are symmetrically arranged above and below. A re-divider 170 is arranged between the two groups of filling racks 160. After the liquid material is collected, it is sprayed on the surface of the lower filling rack 160 again through the re-divider 170. The gaseous material is introduced into the bottom of the inner cylinder 110 through the air inlet pipe 140, so that the gaseous material and the liquid material are fully mixed to synthesize polyester. The gaseous material is nitrogen, which is used to provide an inert environment inside the inner cylinder 110 to avoid the production of by-products of synthetic polyester. The polyol can use liquid ethylene glycol as the liquid material, and the filler can use terephthalic acid, through ethylene glycol and terephthalic acid.

[0034] The specific use process of the utility model is as follows: when synthesizing polyester through polycondensation reaction of polyols and polyacids, technicians in this field install the filler on the filler frame 160, and introduce the liquid material into the interior of the inner cylinder 110 through the liquid inlet pipe 150 and the nozzle 151, so that the liquid material is sprayed onto the surface of the filler frame 160, and then passes through the upper filler frame 160 and falls into the re-divider 170. After the liquid material is collected, it is sprayed on the surface of the lower filler frame 160 again through the re-divider 170, and the gaseous material is introduced into the bottom of the inner cylinder 110 through the air inlet pipe 140, so that the gaseous material and the liquid material are fully mixed to synthesize polyester. The gaseous material is nitrogen, which is used to provide an inert environment inside the inner cylinder 110 to avoid the production of by-products of synthesizing polyester. The polyol can use liquid ethylene glycol as the liquid material, and the filler can use terephthalic acid. Ethylene glycol and terephthalic acid release a large amount of heat during the polycondensation reaction of the synthesis. The first circulation pump 210 is turned on to transport the coolant to the cavity between the outer tube 100 and the inner tube 110, and the outer wall of the inner tube 110 is cooled by liquid cooling. The coolant in the cavity is refluxed to the diverter 260, the capillary 261, and the converging pipe 262 through the reflux pipe 250 for heat dissipation. The capillary 261 is provided to increase the contact area between the coolant and the inner wall of the capillary 261, thereby accelerating the efficiency of heat exchange and facilitating the heat dissipation of the coolant. After the coolant is cooled, it flows back to the coolant tank 200 to maintain the continuous heat dissipation effect of the coolant. When the internal temperature of the inner tube 110 is too low, the second circulation pump 220 is turned on to transport the coolant in the cavity to the coolant tank 200, thereby reducing the amount of coolant in the cavity, thereby achieving temperature control and regulation of the inner tube 110.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A packed tower for polyester synthesis, comprising an outer cylinder (100), wherein an inner cylinder (110) is disposed on the inner wall of the outer cylinder (100), characterized in that: A cavity is provided between the outer cylinder (100) and the inner cylinder (110); the bottom and top of the outer cylinder (100) and the inner cylinder (110) are respectively connected by a first blocking seat (120) and a second blocking seat (130); the outer wall of the outer cylinder (100) is fixedly connected to a temperature control component; the temperature control component comprises a coolant tank (200); a support platform is provided on the outer wall of the coolant tank (200) close to the outer cylinder (100); a first circulation pump (210) and a second circulation pump (220) for circulating the coolant in the coolant tank (200) and the cavity are fixedly installed on the outer wall of the top of the support platform; a return pipe (250) is fixedly connected to the outer wall of the outer cylinder (100); an output end of the return pipe (250) is fixedly connected to a radiator.

2. The packed tower for polyester synthesis according to claim 1, characterized in that: The top of the coolant tank (200) is plugged into and connected to the top cover (201); a handle (202) is fixedly mounted on the top outer wall of the top cover (201); an air hole is provided on the inner wall of the top cover (201); and the input end of the first circulation pump (210) is connected to the inner wall of the bottom end of the coolant tank (200) via a first conduit.

3. The packed tower for polyester synthesis according to claim 2, characterized in that: The output end of the first circulation pump (210) is connected to the inner wall of the outer cylinder (100) via a second conduit, the input end of the second circulation pump (220) is connected to the inner wall of the outer cylinder (100) via a third conduit, and the output end of the second circulation pump (220) is connected to the inner wall of the bottom end of the coolant tank (200) via a fourth conduit.

4. The packed tower for polyester synthesis according to claim 1, characterized in that: The heat sink comprises a shunt pipe (260) and a converging pipe (262), capillaries (261) are evenly fixedly installed between the shunt pipe (260) and the converging pipe (262), the material of the capillaries (261) is set to be metal copper, and a plurality of the capillaries (261) are provided, and a support frame (230) is fixedly installed on the top outer wall of the coolant tank (200).

5. The packed tower for polyester synthesis according to claim 4, characterized in that: A cooling fan group (240) is fixedly mounted on the inner wall of the support frame (230), a plurality of cooling fans are arranged inside the cooling fan group (240), the cooling fan group (240) is located below the capillary tube (261), and the support frame (230) supports the bottom of the diverter tube (260) and the converging tube (262).

6. The packed tower for polyester synthesis according to claim 1, characterized in that: A liquid inlet pipe (150) is fixedly mounted on the top of the inner cylinder (110), a nozzle (151) is fixedly mounted on the output end of the liquid inlet pipe (150), a liquid return cylinder (180) is fixedly mounted on the inner wall of the bottom of the inner cylinder (110), the bottom of the liquid return cylinder (180) is fixedly connected to a liquid outlet pipe (182), and the inner wall of the bottom of the inner cylinder (110) is fixedly connected to an air inlet pipe (140).

7. The packed tower for polyester synthesis according to claim 6, characterized in that: The outer wall of the liquid outlet pipe (182) is provided with a valve (183), the outer wall of the liquid return cylinder (180) is fixedly connected to a liquid level meter (181), the inner wall of the inner cylinder (110) is fixedly provided with a stuffing rack (160), two groups of stuffing racks (160) are symmetrically arranged in the upper and lower parts, and a redistributor (170) is arranged between the two groups of stuffing racks (160).

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