Plate tower with variable working conditions

Abstract

The utility model discloses a plate tower with variable working conditions, and relates to a rectifying tower. Comprising a tower body, and a plurality of tower plates are connected in the tower body from top to bottom; a plurality of via holes are formed in the tower plate; a product extraction opening is formed in the lower part of each tower plate; the tower plate comprises a middle rotating shaft and semicircular movable tower plates connected to the two sides of the middle rotating shaft, and the circular tower plate formed by the two semicircular movable tower plates is matched with the inner diameter of the tower body; the middle rotating shaft is positioned at the diameter position of the tower plate and is fixedly connected with the tower body; the two semicircular movable tower plates are hinged with the middle rotating shaft; the two semicircular movable tower plates are connected with handles, and the handles are positioned outside the tower body; the plate-type tower is provided with the turnover tower plates, the states of the tower plates can be switched at any time, the multiple layers of tower plates are combined, different production requirements can be met, and the problem that the separation scheme suitable for an existing plate-type tower is fixed and single is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical equipment and relates to a distillation tower, in particular to a plate tower with variable working conditions. Background Art

[0002] The distillation tower is a commonly used separation equipment in chemical plants. It is a tower-type gas-liquid contact device for distillation. 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. The distillation tower is also a mass transfer and heat transfer device that is widely used in petrochemical production.

[0003] Distillation towers can be roughly divided into two categories: 1. Plate towers, in which the gas and liquid phases are generally in countercurrent contact multiple times, and the gas and liquid phases on each plate generally have cross flow; 2. Packed towers, in which the gas and liquid phases are in continuous countercurrent contact.

[0004] A general distillation unit consists of a distillation tower, a condenser, a reflux tank, a reboiler and other equipment. The feed enters the distillation tower from a certain plate in the distillation tower, which is called the feed plate. The feed plate divides the distillation tower into two sections, the part above the feed plate is called the distillation section, and the part below the feed plate is called the stripping section.

[0005] Whether it is a plate tower or a packed tower, it is designed according to the process requirements, and the design parameters of the tower internals are determined mainly based on the composition of the feed to be separated and the target product. However, in actual operation, the adjustment of process operating conditions can only slightly change the product properties. When the raw material or product demand changes significantly, the original equipment cannot meet the requirements, and the transformation is difficult and costly. In most cases, the distillation equipment becomes idle. Utility Model Content

[0006] The utility model overcomes the shortcomings of the prior art and proposes a plate-type tower with variable working conditions to solve the problem that the separation scheme applicable to the existing plate-type tower is fixed and single.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0008] A plate tower with variable working conditions comprises a tower body, wherein a plurality of tower plates are connected from top to bottom in the tower body; a plurality of through holes are arranged on the tower plates; a product extraction port is arranged below each tower plate; the tower plates comprise an intermediate rotating shaft, and semicircular movable tower plates connected on both sides of the intermediate rotating shaft, wherein two semicircular movable tower plates form a circular tower plate adapted to the inner diameter of the tower body; the intermediate rotating shaft is located at the diameter position of the tower plate, and the intermediate rotating shaft is fixedly connected to the tower body; the two semicircular movable tower plates are both hinged to the intermediate rotating shaft; the two semicircular movable tower plates are both connected to a handle, and the handle is located outside the tower body.

[0009] Furthermore, the product extraction port is connected to the outside of the tower body through a product extraction pipeline.

[0010] Furthermore, a control valve is provided on the product extraction pipeline.

[0011] Furthermore, connecting columns are arranged at intervals on the straight line edges connecting the semicircular movable tower plate and the intermediate rotating shaft, and the intermediate rotating shaft passes through the connecting columns.

[0012] Furthermore, the connecting columns of the two semicircular movable tower plates are arranged alternately.

[0013] Furthermore, the semicircular arc edge of the semicircular movable tower plate does not contact the inner wall of the tower body.

[0014] Furthermore, the tower body is provided with a feed inlet, which is located at the bottom of the tower body.

[0015] The beneficial effects of the utility model compared with the prior art are:

[0016] Based on the principle of butterfly-type one-way valve, the utility model designs all the plates of the plate tower as semicircular upward split type, the two plates are relatively combined into a hinge shape, the diameter position is respectively connected to the middle rotating shaft and the external sleeve, the middle rotating shaft and the external sleeve are respectively connected to the tower handle, the state of the double handle outside the tower is consistent with the tower plate inside the tower, the semicircular tower plate operated by the tower handle is in a horizontal state, that is, an online working state, or a vertical state, that is, an offline idle state. At the same time, multiple product extraction ports are designed to produce different products when the tower plate is in an online production state.

[0017] The plate tower design of the utility model is equipped with a reversible plate, which can switch the plate state at any time. The multi-layer plate combination can adapt to different production needs. For example, when processing long-range oil raw materials, multiple plates can be put into working state according to the product plan, and the target product can be obtained at the corresponding extraction position; when processing short-range oil raw materials, the number of working plates can be reduced, the energy consumption can be reduced, and two or more products can be obtained. The utility model greatly increases the production flexibility of the device, and the production can be quickly adjusted according to market conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the plate tower with variable working conditions described in the utility model;

[0019] Figure 2 It is a top view of the tower plate;

[0020] Figure 3 It is a structural schematic diagram of the tower plate in working state;

[0021] Figure 4 It is a structural schematic diagram of a tower plate in an offline idle state;

[0022] In the figure:

[0023] 1 is the tower body, 2 is the tower plate, 3 is the through hole, 4 is the middle rotating shaft, 5 is the semicircular movable tower plate, 6 is the handle, 7 is the product extraction pipeline, 8 is the control valve, 9 is the connecting column, and 10 is the feed inlet. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail in combination with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solution of the present invention is described in detail below in combination with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0025] like Figure 1-4 As shown, this embodiment provides a plate tower with variable operating conditions, including a tower body 1, wherein five tower plates 2 are connected from top to bottom in the tower body 1; a plurality of through holes 3 are provided on the tower plates 2; a product extraction outlet is provided below each tower plate 2; the product extraction outlet is connected to the outside of the tower body 1 through a product extraction pipeline 7, and a control valve 8 is provided on the product extraction pipeline 7.

[0026] Based on the principle of butterfly check valve, all the plates 2 of the plate tower are designed to be semicircular upward split type, the plates 2 include an intermediate rotating shaft 4, and semicircular movable plates 5 connected to both sides of the intermediate rotating shaft 4, the two semicircular movable plates 5 form a circular plate 2 adapted to the inner diameter of the tower body 1, but at the same time, the semicircular arc edge of the semicircular movable plates 5 does not contact the inner wall of the tower body 1. The intermediate rotating shaft 4 is located at the diameter position of the plate 2, and the intermediate rotating shaft 4 is fixedly connected to the tower body 1; the two semicircular movable plates 5 are both hinged to the intermediate rotating shaft 4.

[0027] The hinged structure in this embodiment adopts a hinge-like structure, that is, connecting columns 9 are arranged at intervals on the straight edge where the semicircular movable tower plate 5 is connected to the intermediate rotating shaft 4, and the connecting columns 9 of the two semicircular movable tower plates 5 are arranged alternately. The intermediate rotating shaft 4 is inserted into the connecting columns 9. The two semicircular movable tower plates 5 are both connected with a handle 6, and the handle 6 is located outside the tower body 1.

[0028] The tower body 1 is provided with a feed inlet 10 , and the feed inlet 10 is located at the bottom of the tower body 1 .

[0029] The working principle of the variable operating conditions plate tower is:

[0030] Based on the principle of butterfly check valve, all the tower plates are designed to be semicircular upward split type, and the two tower plates are relatively combined into a hinge shape. The handle 6 outside the tower operates the semicircular movable tower plate 5 in a horizontal state, that is, the online working state, and the handle 6 outside the tower operates the semicircular movable tower plate 5 in a vertical state, that is, the offline idle state. At the same time, multiple product extraction ports are designed to produce different products when the tower plates are in the online production state.

[0031] The tray status can be switched at any time, and the combination of multiple trays can adapt to different production needs. For example, when processing long-range oil raw materials, multiple trays can be put into working state according to the product plan, and the target product can be obtained at the corresponding extraction position; when processing short-range oil raw materials, the number of working trays can be reduced, the energy consumption can be reduced, and two or more products can be obtained.

[0032] The above content is a further detailed description of the utility model in combination with a specific preferred implementation method. It cannot be determined that the specific implementation methods of the utility model are limited to this. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the utility model, which should be regarded as belonging to the utility model and the scope of patent protection determined by the submitted claims.

Claims

1. A plate tower with variable working conditions, comprising a tower body (1), wherein a plurality of tower plates (2) are connected from top to bottom in the tower body (1); a plurality of through holes (3) are provided on the tower plates (2); and the characteristics are as follows: A product extraction port is provided below each tower plate (2); the tower plate (2) comprises an intermediate rotating shaft (4) and semicircular movable tower plates (5) connected to both sides of the intermediate rotating shaft (4); the two semicircular movable tower plates (5) form a circular tower plate (2) adapted to the inner diameter of the tower body (1); the intermediate rotating shaft (4) is located at the diameter position of the tower plate (2), and the intermediate rotating shaft (4) is fixedly connected to the tower body (1); the two semicircular movable tower plates (5) are both hinged to the intermediate rotating shaft (4); the two semicircular movable tower plates (5) are both connected to a handle (6), and the handle (6) is located outside the tower body (1).

2. A plate tower with variable operating conditions according to claim 1, characterized in that: The product extraction port is connected to the outside of the tower body (1) via a product extraction pipeline (7).

3. A plate tower with variable operating conditions according to claim 2, characterized in that: The product extraction pipeline (7) is provided with a control valve (8).

4. A plate tower with variable operating conditions according to claim 1, characterized in that: Connecting columns (9) are arranged at intervals on the straight line edge connecting the semicircular movable tower plate (5) and the intermediate rotating shaft (4), and the intermediate rotating shaft (4) is inserted into the connecting columns (9).

5. A plate tower with variable operating conditions according to claim 4, characterized in that: The connecting columns (9) of the two semicircular movable tower plates (5) are arranged alternately.

6. A plate tower with variable operating conditions according to claim 1, characterized in that: The semicircular arc edge of the semicircular movable tower plate (5) does not contact the inner wall of the tower body (1).

7. A plate tower with variable operating conditions according to claim 1, characterized in that: The tower body (1) is provided with a feed inlet (10), and the feed inlet (10) is located at the bottom of the tower body (1).

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