Double-circulation type coarse distillation tower

Abstract

The utility model relates to a double-circulation type coarse distillation tower, which comprises a filter plate and a distillation tower, the filter plate is provided with a mounting notch and a mounting hole, the mounting notch is arranged on the lower side of the filter plate, the mounting hole is arranged on the side surface of the filter plate, the inner wall of the distillation tower is provided with a plurality of clamping pieces, the mounting notch can be clamped in the clamping pieces, and the filter plate is provided with a plurality of through holes. A mounting hole is formed in the side wall of the distillation tower, a fixing hole is formed in the side wall of the distillation tower, the circle center of the mounting hole and the circle center of the fixing hole are located on the same axis, a bolt is arranged between the mounting hole and the fixing hole in a penetrating mode, the filter plate is of a detachable structure, welding is not needed during mounting, only the bolt is needed for mounting, and the mounting time and cost are saved; according to the structure, different reflux ratios can be achieved by changing the installation number of the filter plates, and the flexibility of production and installation of the distillation tower is higher through the combination of the filter plates with different numbers.

Description

Technical Field

[0001] The utility model relates to a double-circulation type crude distillation tower. Background Art

[0002] The crude distillation tower is a tower-type vapor-liquid contact device. By utilizing the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature, the light components (low-boiling substances) in the liquid phase are transferred to the gas phase, and the heavy components (high-boiling substances) in the gas phase are transferred to the liquid phase, thereby achieving the purpose of separation. There are two independent circulation systems in the tower, one is the top circulation, and the other is the bottom circulation. The top circulation is responsible for reflux the light fraction from the top of the tower into the tower, while the bottom circulation refluxes the heavy fraction from the bottom of the tower.

[0003] The filter plates in the existing plate towers are fixed, which is inconvenient to install and clean, and can easily cause cleaning dead corners. Therefore, a double-circulation crude distillation tower is needed, which has a structure that is easy for personnel to install and clean. Utility Model Content

[0004] The purpose of the utility model is to solve the above shortcomings of the prior art and provide a double-circulation crude distillation tower. Through the detachable filter plate, the installation and disassembly process is faster. After the filter plate is removed, it is easier to clean and maintain the distillation tower. The specific scheme is as follows:

[0005] A double-circulation crude distillation tower comprises a filter plate and a distillation tower, wherein the filter plate has a mounting notch and a mounting hole, wherein the mounting notch is arranged on the lower side of the filter plate, and the mounting hole is arranged on the side of the filter plate, wherein the inner wall of the distillation tower is provided with a plurality of clips, wherein the mounting notch can be snapped into the clips, and wherein the side wall of the distillation tower is provided with a fixing hole, wherein the center of the mounting hole and the center of the fixing hole are located on the same axis, and wherein a bolt is passed through the mounting hole and the fixing hole.

[0006] In order to save space and ensure the fixing effect, the installation notch is crescent-shaped and the clamp is crescent-shaped.

[0007] In order to enhance the fixing effect between the distillation tower and the filter plate, the clamp is arranged between the mounting hole and the fixing hole, and the clamp is provided with a hole, and the center of the hole and the mounting hole are located on the same axis.

[0008] In order to enhance the sealing performance of the distillation tower, the bolt sleeve is provided with a plurality of sealing gaskets.

[0009] In order to enhance the fixing effect of the filter plate, the number of the mounting holes and the number of the fixing holes are both three.

[0010] In order to facilitate the installation and cleaning of the filter plate, a fixed structure is provided on the top of the distillation tower, and the top of the distillation tower can be opened and closed by changing the state of the fixed structure.

[0011] In order to enhance the sealing performance of the distillation tower, the fixing structure is a bolt structure.

[0012] Beneficial effects: The filter plate is a detachable structure, which does not require welding during installation and only needs to be installed with bolts, saving installation time and cost; this structure can achieve different reflux ratios by changing the number of installed filter plates, and through the combination of different numbers of filter plates, the production and installation flexibility of the distillation tower is made stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of a double-circulation crude distillation tower;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of a filter plate of a double-circulation crude distillation tower;

[0015] Figure 3 yes Figure 1 A magnified view of a local perspective;

[0016] In the figure: 1. filter plate, 2. distillation tower, 3. mounting notch, 4. mounting hole, 5. clamp, 6. fixing hole, 7. bolt, 8. fixing structure. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0018] In this embodiment:

[0019] A double-circulation crude distillation tower comprises a filter plate 1 and a distillation tower 2, wherein the filter plate 1 has a mounting notch 3 and a mounting hole 4, wherein the mounting notch 3 is arranged on the lower side of the filter plate 1, and the mounting hole 4 is arranged on the side of the filter plate 1, wherein the inner wall of the distillation tower 2 is provided with a plurality of clamps 5, wherein the mounting notch 3 can be clamped in the clamps 5, and the side wall of the distillation tower 2 is provided with a fixing hole 6, wherein the center of the mounting hole 4 and the center of the fixing hole 6 are located on the same axis, and a bolt 7 is passed through the mounting hole 4 and the fixing hole 6.

[0020] The mounting notch 3 is crescent-shaped, the clamp 5 is crescent-shaped, the clamp 5 is arranged between the mounting hole 4 and the fixing hole 6, the clamp 5 is provided with a hole, the center of the hole and the mounting hole 4 are located on the same axis, the bolt 7 is provided with a plurality of sealing gaskets, the number of the mounting hole 4 and the number of the fixing hole 6 are three, the top of the distillation tower 2 is provided with a fixing structure 8, and the top of the distillation tower 2 can be opened and closed by changing the state of the fixing structure 8, and the fixing structure 8 is a bolt structure.

[0021] When installing the device, first start from the lowermost clamping piece 5, clamp the installation notch 3 of the filter plate 1 and the clamping piece 5, then fix it from the outside with nuts and bolts 7, and then install other filter plates 1 in sequence. Install the required number of filter plates 1 according to production needs. After the installation is completed, close and fix the fixing structure 8 on the distillation tower 2; when the device needs to be repaired and cleaned, open the fixing structure to open the distillation tower 2, undo the bolts 7 from the outside from top to bottom, remove the filter plate 1, and after cleaning, install the filter plate 1 again according to the above steps.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A double circulation crude distillation tower, comprising a filter plate and a distillation tower, characterized in that: The filter plate has a mounting notch and a mounting hole, the mounting notch is arranged on the lower side of the filter plate, the mounting hole is arranged on the side of the filter plate, the inner wall of the distillation tower is provided with a plurality of clips, the mounting notch can be snapped into the clips, the side wall of the distillation tower is provided with a fixing hole, the center of the mounting hole and the center of the fixing hole are located on the same axis, and bolts are passed between the mounting hole and the fixing hole.

2. A double circulation crude distillation tower according to claim 1, characterized in that , the installation notch is crescent-shaped, and the clamp is crescent-shaped.

3. A double circulation crude distillation tower according to claim 1, characterized in that: The clamping piece is arranged between the mounting hole and the fixing hole, and each of the clamping pieces is provided with a hole, and the center of the hole and the mounting hole are located on the same axis.

4. A double circulation crude distillation tower according to claim 1, characterized in that: The bolt sleeve is provided with a plurality of sealing pads.

5. A double circulation crude distillation tower according to claim 1, characterized in that: The number of the mounting holes and the number of the fixing holes are both three.

6. A double circulation crude distillation tower according to claim 1, characterized in that: The top of the distillation tower is provided with a fixed structure, and the top of the distillation tower is opened and closed by changing the state of the fixed structure.

7. A double circulation crude distillation tower according to claim 6, characterized in that: The fixing structure is a bolt structure.

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