Composite packed tower for producing polyester polyol

Abstract

The utility model relates to a composite packed tower for producing polyester polyol, which comprises a barrel body, a support plate and a gas distributor, both the gas distributor and the support plate are arranged inside the barrel body, and the gas distributor is arranged below the support plate; the gas distributor comprises a mounting plate; the mounting plate is used for connecting the supporting plate; the air inlet pipe is introduced from the outer side of the barrel body and extends to the position below the mounting plate, a circular ring is arranged above the mounting plate, and a circle of gas channel is formed in the circular ring; branch pipes communicated with the gas channel in the circular ring are arranged on the two sides of the circle center of the installation plate respectively, the lower portions of the two branch pipes are communicated to a vertical pipe, and the lower end of the vertical pipe is connected with a gas inlet pipe. A plurality of gas outlet pipes uniformly distributed around the center of the circular ring are arranged in the inner ring around the circular ring, the lower ends of the gas outlet pipes are communicated with the gas channel in the circular ring, and the upper ends of the gas outlet pipes are arranged upwards. And meanwhile, the device is convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of packed tower technology, and in particular to a composite packed tower for polyester polyol production. Background Technology

[0002] Packed towers are a type of tower equipment. Their main function is to facilitate contact and reaction between gas and packing material. They offer advantages such as high separation efficiency, large throughput, and low pressure drop, and have been widely used in industry. Packed towers are widely used in gas absorption, distillation, extraction, and other operations, and are among the most important pieces of equipment in chemical, petrochemical, and oil refining production.

[0003] The packed tower structure used by this company is referenced. Figure 6 and Figure 1 It includes a cylinder 7, inside which, from top to bottom, are arranged a wire mesh demister 1, a liquid distributor 2, packing 4, a liquid redistributor 6, packing 4, a support plate 3, and a gas distributor 5. Please see... Figure 6 The structure of the gas distributor 5 before the improvement of this enterprise includes a mounting base plate 51, a vertical pipe 53 is set on the top of the mounting base plate 51, an air inlet pipe 52 arranged horizontally is connected to the vertical pipe 53, and the top of the vertical pipe 53 is a sphere 531 with air outlet holes 531a densely distributed on the sphere.

[0004] This structure has the problem of being difficult to manufacture. The sphere is covered with air vents 531a, which is difficult to process. If it is damaged, you can only buy it from the equipment manufacturer. Utility Model Content

[0005] The purpose of this invention is to provide a composite packed tower for polyester polyol production, addressing the problem of low processing convenience of gas distributors in the prior art. The specific solution is as follows:

[0006] A composite packed tower for polyester polyol production includes a barrel body, a support plate, and a gas distributor, wherein the gas distributor and the support plate are both disposed inside the barrel body, and the gas distributor is installed below the support plate.

[0007] The gas distributor includes a mounting plate for connecting to the support plate;

[0008] An air intake pipe is introduced from the outside of the barrel and extends to the bottom of the mounting plate. A ring is provided above the mounting plate, and a gas channel is provided inside the ring.

[0009] The mounting plate has branch pipes on both sides of its center that communicate with the gas channel inside the ring. The two branch pipes converge at the bottom to the vertical pipe, and the lower end of the vertical pipe is connected to the air inlet pipe.

[0010] The inner ring of the circular ring is provided with a plurality of gas outlet pipes evenly distributed around the center of the circular ring. The lower end of the gas outlet pipe is connected to the gas channel inside the circular ring, and the upper end of the gas outlet pipe is set upward.

[0011] Optionally, the vent pipe is welded to the annulus.

[0012] The advantages of this utility model are: the structure is simple, the materials are readily available, and the manufacturing is easy.

[0013] It also features convenient maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural diagram of the gas distributor of this utility model;

[0016] Figure 3 for Figure 2 sectional view;

[0017] Figure 4 This is a perspective view of the gas distributor of this utility model;

[0018] Figure 5 This is a second-view perspective perspective view of the gas distributor of this utility model.

[0019] Figure 6 This is a structural diagram of the gas distributor before the company's improvements.

[0020] in:

[0021] 1-Wire mesh demister;

[0022] 2-Liquid distributor;

[0023] 3-Support plate;

[0024] 4-Packaging;

[0025] 5-Gas distributor;

[0026] 6-Liquid redistributor;

[0027] 7-Barrel body;

[0028] 51-Inlet pipe, 52-Vertical pipe, 53-Branch pipe, 54-Mounting plate, 55-Ring, 56-Outlet pipe. Detailed Implementation

[0029] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0030] Please see Figures 1 to 3 And refer to Figure 4 and Figure 5 A composite packed tower for polyester polyol production includes a cylinder 7, inside which a wire mesh demister 1, a liquid distributor 2, packing 4, a liquid redistributor 6, packing 4, a support plate 3, and a gas distributor 5 are arranged sequentially from top to bottom.

[0031] The gas distributor 5 is installed below the support plate 3;

[0032] The gas distributor 5 includes a mounting plate 54, which is used to connect the support plate 3;

[0033] An air inlet pipe 51 is introduced from the outside of the barrel 7 and extends to the bottom of the mounting plate 54. A ring 55 is provided above the mounting plate 54, and a gas channel is provided inside the ring 55.

[0034] The mounting plate 54 has branch pipes 53 on both sides of its center that communicate with the gas passage inside the ring 55. The two branch pipes 53 converge at the bottom to the vertical pipe 52. The lower end of the vertical pipe 52 is connected to the air inlet pipe 51.

[0035] A plurality of air outlet pipes 56 are provided in the inner circle of the ring 55, evenly distributed around the center of the ring 55. The air outlet pipes 56 are bent pipes and are welded to the ring 55. The lower end of the air outlet pipes 56 communicates with the gas channel inside the ring 55, and the upper end of the air outlet pipes 56 is set upward.

[0036] This structure does not require punching equipment; it can be processed using welding machines and lathes available in the enterprise. Furthermore, if the vent pipe 56 is damaged later, only the damaged part needs to be repaired. This solution has the advantages of simple structure, readily available materials, and easy manufacturing, and it is also easy to maintain.

[0037] Compared to the previous structure, this structure also features a larger jet range. The gas is delivered from the inlet pipe 51, passes upward through the vertical pipe 52 to the two branch pipes 53 and enters the gas channel inside the annulus 55. Finally, it is ejected upward through multiple outlet pipes 56, which has the feature of a larger jet diameter, resulting in a larger contact area between the gas and the liquid.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A composite filler column for polyester polyol production, characterized in that, It includes a barrel body, a support plate, and a gas distributor, wherein the gas distributor and the support plate are both disposed inside the barrel body, and the gas distributor is installed below the support plate; The gas distributor includes a mounting plate for connecting to the support plate; An air intake pipe is introduced from the outside of the barrel and extends to the bottom of the mounting plate. A ring is provided above the mounting plate, and a gas channel is provided inside the ring. The mounting plate has branch pipes on both sides of its center that communicate with the gas channel inside the ring. The two branch pipes converge at the bottom to the vertical pipe, and the lower end of the vertical pipe is connected to the air inlet pipe. The inner ring of the circular ring is provided with a plurality of gas outlet pipes evenly distributed around the center of the circular ring. The lower end of the gas outlet pipe is connected to the gas channel inside the circular ring, and the upper end of the gas outlet pipe is set upward.

2. A composite packed column for polyester polyol production according to claim 1, characterized in that, The vent pipe is welded to the annulus.

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