Multi-stage methanol rectification device

Abstract

The utility model relates to the field of rectification devices, in particular to a multi-section methanol rectification device, which comprises a tower body and a filler partition plate, the tower body is provided with at least two tower body sections, the upper end of each tower body section is provided with a slot I, a connecting piece is arranged in the corresponding slot I, and the connecting piece comprises a connecting ring, a slot II and an inner groove, a clamping ring is arranged at the bottom of the tower body section, fixing plates are arranged on the periphery of the clamping ring, and springs are connected to the outer sides of the fixing plates. According to the multi-section methanol rectification device provided by the utility model, an operator only needs to separate a tower body section where a filler needing to be supplemented is located, then presses the support inclined plate to extend out of the positions of the slot II, the inner groove and the slot I, so that the support spring is not clamped any more, the filler partition plate is taken out, the filler is supplemented, and after the completion of the supplementing, the tower body section is separated from the tower body section. And the packing partition plate is installed back into the connecting ring, and then the supporting inclined plate extends and is clamped to the positions of the first inserting groove, the second inserting groove and the inner groove.

Description

Technical Field

[0001] The utility model relates to the field of distillation devices, in particular to a multi-stage methanol distillation device. Background Art

[0002] In the current chemical industry, distillation towers are widely used mass transfer and heat transfer devices, which use the different volatilities of the components of the compound to achieve separation purposes, thereby obtaining products with higher purity. Among them, the tower body of the packed distillation tower is mostly a vertical cylinder, and at least one layer of packed partition plates is provided in the tower to place the packing and separate different packings. When the distillation tower starts working, the substance to be purified enters the tower body from the bottom air inlet, passes through multiple layers of packing materials, and then goes out from the top air outlet, thereby obtaining a product with higher purity.

[0003] A Chinese patent discloses a methanol distillation device (authorization announcement number CN 203281057 U). This patented technology can add alkali solution to crude methanol through the lower part of the stripping section of the methanol pre-distillation tower, changing the position of adding alkali solution, so that the acid value of the refined methanol produced by the distillation process can quickly and stably reach the standard. However, the distillation towers widely used in factories are mostly whole-section type. When the distillation of a chemical product is more complicated, it is necessary to pass through multiple layers of fillers. After a period of distillation work, the fillers are deteriorated, volatilized, and dropped, and the fillers need to be replaced or supplemented. The whole-section tower body will increase the workload of replacing the fillers. If only the bottom fillers need to be replaced, the setting of the whole-section tower body results in each layer having to be split out before the bottom fillers can be replaced, which is more troublesome.

[0004] Therefore, those skilled in the art provide a multi-stage methanol distillation device to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a multi-stage methanol distillation device, including a tower body and a packing partition, the tower body has at least two tower sections, the upper end of each tower section is provided with a slot one, the corresponding interior of the slot one is provided with a connecting piece, the connecting piece includes a connecting ring, a slot two and an inner groove, a clamping ring is provided at the bottom of the tower section, fixed plates are provided around the clamping ring, the outer side of the fixed plate is connected to a spring, the outer end of the spring is fixed with a supporting inclined plate, and the packing partition is provided inside the connecting ring.

[0006] Preferably: the connection ring is provided with a slot 2, the corresponding slot 2 is provided with an inner groove, the inner bottom of the clamp ring is provided with a clamping groove, and the four fixing plates, springs and support inclined plates are evenly distributed along the position extension direction of the slot 2, the slot 1 and the slot 2. The four fixing plates, springs and support inclined plates all abut against the side of the packing partition and restrict the movement of the packing partition along the extension direction of the tower body section. Each spring and each support inclined plate corresponds to a slot 2, a slot 1 and an inner groove, and the support inclined plate is made of steel sheet. When the operator installs and removes the packing partition, the connection ring, the slot 2 and the inner groove in the connection piece and the slot 1 on the outer side of the tower body are first arranged to correspond to each other, that is, the support inclined plate has an arc, and such an arrangement can protect the support inclined plate and extend its service life. The support inclined plate is inserted into the inner groove, the slot 2 and the outer slot 1 for clamping connection, and the clamping ring and the clamping groove are mutually engaged and connected, so as to facilitate the connection and setting of the connection ring, the tower body end and the tower body.

[0007] Technical effects and advantages of the utility model:

[0008] In the multi-stage methanol distillation device provided by the utility model, the operator only needs to separate the tower body section where the filler that needs to be replaced is located, and then press to extend the supporting inclined plate from the positions of slot two, the inner slot and slot one so that the supporting spring is no longer engaged, and then take out the filler partition plate to replace the filler. After the replacement is completed, the filler partition plate is put back into the connecting ring, and then the supporting inclined plate is extended to engage with the positions of slot one, slot two and the inner slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of a multi-stage methanol distillation device provided in the embodiment of the present application. Figure 1 ;

[0010] Figure 2 This is a schematic diagram of the structure of a multi-stage methanol distillation device provided in the embodiment of the present application. Figure 2 ;

[0011] Figure 3 It is a structural schematic diagram of a packing partition and a slot 1 in a multi-stage methanol distillation device provided in an embodiment of the present application;

[0012] Figure 4 It is a structural schematic diagram of a tower section in a multi-stage methanol distillation device provided in an embodiment of the present application;

[0013] Figure 5 It is a structural schematic diagram of a connecting piece in a multi-stage methanol distillation device provided in an embodiment of the present application;

[0014] Figure 6 A multi-stage methanol distillation device provided in the embodiment of the present application Figure 5The structural diagram at A in the middle;

[0015] Figure 7 A multi-stage methanol distillation device provided in the embodiment of the present application Figure 2 Schematic diagram of the structure at B in the middle;

[0016] Figure 8 A multi-stage methanol distillation device provided in the embodiment of the present application Figure 2 Schematic diagram of the structure at C in the middle.

[0017] In the figure: 1, tower body; 11, tower body section; 2, packing partition; 3, slot one; 4, connecting piece; 41, connecting ring; 42, slot two; 43, inner groove; 5, clamping ring; 6, clamping groove; 7, fixing plate; 8, spring; 9, supporting inclined plate. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0019] Example 1

[0020] See also Figures 1 to 8 In this embodiment, a multi-stage methanol distillation device is provided, including a tower body 1 and a packing partition 2. The tower body 1 has at least two tower body sections 11. A slot 1 3 is provided at the upper end of each tower body section 11. A connecting piece 4 is provided inside the slot 1 3. The connecting piece 4 includes a connecting ring 41, a slot 2 42 and an inner groove 43. A slot 2 42 is provided inside the connecting ring 41. The inner groove 43 is provided inside the slot 2 42. A clamping ring 5 is provided at the bottom of the tower body section 11. The inner bottom of the clamping ring 5 is provided with a The clamping groove 6 and the clamping ring 5 are all provided with fixing plates 7, the outer side of the fixing plates 7 is connected to the spring 8, and the outer end of the spring 8 is fixed with a supporting inclined plate 9. In this embodiment, the four fixing plates 7, the spring 8 and the supporting inclined plates 9 are evenly distributed along the extending direction of the slot 2 42, the slot 1 3 and the slot 2 42. The four fixing plates 7, the spring 8 and the supporting inclined plates 9 are all against the side of the packing partition 2 and limit the movement of the packing partition 2 along the extending direction of the tower body section 11. The packing partition 2 is placed inside the connecting ring 41;

[0021] In this embodiment, each spring 8 and each support inclined plate 9 corresponds to a slot 2 42, a slot 1 3, and an inner groove 43. The support inclined plate 9 is made of a steel sheet. When the operator installs and removes the packing partition 2, the connecting ring 41, the slot 2 42 and the inner groove 43 in the connecting member 4 and the slot 1 3 on the outer side of the tower body 1 are first arranged to correspond to each other, that is, the support inclined plate 9 has an arc. Such an arrangement can protect the support inclined plate 9 and extend its service life.

[0022] The support inclined plate 9 is inserted into the second slot 42 and the inner slot 43. As the spring 8 acts on the support inclined plate 9, the support inclined plate 9 is clamped into the inner slot 43, the second slot 42 and the outer slot 1 3 for clamping connection, and the clamping ring 5 and the clamping slot 6 are mutually clamped and connected, so as to facilitate the connection setting of the connecting ring 41, the tower body end and the tower body 1.

[0023] During the methanol distillation process, the vapor generated by the heated methanol mixture goes up along the extension direction of the tower body 1 and is finally drawn out from the top of the tower. During this process, the mixture needs to pass through the packing area independently separated by multiple packing partitions 2, and the methanol vapor condensed at the top of the tower will partially slide down along the inner wall of the tower body 1 after condensation. During this series of processes, there are situations such as packing falling off and packing consumption. Traditional methanol distillation towers are mostly whole-section type, and it is troublesome to add or replace packing. In a multi-section methanol distillation device according to an embodiment of the present application, the operator only needs to separate the tower body section 11 where the packing that needs to be replenished is located, and then press the support inclined plate 9 to extend from the position of slot two 42, inner groove 43 and slot one 3 so that the support spring 8 is no longer engaged, and then take out the packing partition 2 to replenish the packing. After the replenishment is completed, the packing partition 2 is installed back into the connecting ring 41, and then the support inclined plate 9 is extended to the position of slot one 3, slot two 42 and inner groove 43.

[0024] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A multi-stage methanol distillation device, comprising a tower body (1) and a packing partition (2), characterized in that: The tower body (1) comprises at least two tower sections (11), each tower section (11) is provided with a slot one (3) at the upper end, a connecting piece (4) is arranged inside the slot one (3), the connecting piece (4) comprises a connecting ring (41), a slot two (42) and an inner groove (43), a clamping ring (5) is arranged at the bottom of the tower section (11), a fixing plate (7) is arranged around the clamping ring (5), a spring (8) is connected to the outer side of the fixing plate (7), a supporting inclined plate (9) is fixed at the outer end of the spring (8), and a packing partition (2) is arranged inside the connecting ring (41).

2. A multi-stage methanol distillation device according to claim 1, characterized in that: A second slot (42) is provided inside the connecting ring (41), and an inner slot (43) is provided inside the corresponding part of the second slot (42).

3. A multi-stage methanol distillation device according to claim 1, characterized in that: The inner bottom of the clamping ring (5) is provided with a clamping groove (6), and four fixing plates (7), springs (8) and supporting inclined plates (9) are evenly distributed circumferentially along the position extension direction of the slot 2 (42), the slot 1 (3) and the slot 2 (42).

4. A multi-stage methanol distillation device according to claim 1, characterized in that: The four fixing plates (7), springs (8) and supporting inclined plates (9) all abut against the side surfaces of the packing partitions (2) and restrict the movement of the packing partitions (2) along the extension direction of the tower body section (11).

5. The multi-stage methanol distillation device according to claim 1, characterized in that: Each spring (8) and each supporting inclined plate (9) corresponds to a second slot (42), a first slot (3), and an inner slot (43), and the supporting inclined plate (9) is made of a steel sheet.

6. A multi-stage methanol distillation device according to claim 5, characterized in that: The supporting inclined plate (9) is inserted into the inner groove (43), the second slot (42) and the outer slot (3) for clamping connection, and the provided clamping ring (5) and the clamping slot (6) are mutually engaged and connected, so as to facilitate the connection and setting of the connecting ring (41), the tower body end and the tower body (1).

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