Combined structure of small-diameter tower plates

Abstract

The invention relates to a combined structure of small-diameter tower plates, which is mainly used for liquid collection, distribution and mass transfer processes, and is particularly suitable for synthesis and refining processes of dimethyl sulfide (DMS) and dimethyl sulfoxide (DMSO). The device comprises a tray (1), an upper flange (2), a clamping piece (3), a lower flange (4), a tubular distributor (5) and a packed bed layer limiter / distribution guide plate (6) from top to bottom, the tower tray (1) adopts a radial flow design, and liquid descends from the middle to flow towards the periphery and then flows from the periphery to the middle; and the tubular distributor (5) and the packed bed layer limiter / distribution guide plate (6) are combined into a whole. According to the small-diameter tower plate structure, the mass transfer efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the internal components of tower equipment in the fields of chemical industry, pharmaceutical industry, environmental protection, etc., in particular to a combined structure of small-diameter tray, mainly used for the collection, distribution and mass transfer process of liquid, especially suitable for the synthesis and refining process of dimethyl sulfide (DMS) and dimethyl sulfoxide (DMSO). BACKGROUND

[0002] In the chemical and pharmaceutical industries, tower equipment is the core equipment for processes such as distillation, absorption, extraction, etc. The traditional tray design usually adopts a left-right flow structure, which works well in large towers, but has many problems in small towers. For example, the structure is complex, the liquid collection and distribution functions are designed separately, resulting in low space utilization in the tower and large equipment volume; installation is difficult, the traditional tray installation process is complex, it is difficult to enter the tower from the flange, increasing the installation difficulty and time; mass transfer efficiency is low, affecting the synthesis and refining efficiency of DMS and DMSO; energy consumption is high, the large equipment volume leads to increased energy consumption and production cost. Therefore, developing a small-diameter tray combined structure with compact structure, easy installation and high mass transfer efficiency is of great significance to improve the production efficiency and product quality of DMS and DMSO. SUMMARY

[0003] In order to solve the problems existing in the prior art, the present application provides a combined structure of small-diameter tray, which optimizes the design of the tray, realizes efficient collection and distribution of liquid, and at the same time has mass transfer function, compact structure and easy installation, especially suitable for small tower equipment, especially suitable for the synthesis and refining process of DMS and DMSO.

[0004] The technical scheme of the present application is a combined structure of small-diameter tray, which comprises, from top to bottom, a tray (1), an upper flange (2), a clamping piece (3), a lower flange (4), a tubular distributor (5) and a packing bed restrictor / distribution guide plate (6); the tray (1) adopts a radial flow design, liquid flows from the middle to the periphery and then from the periphery to the middle;

[0005] The tubular distributor (5) and the packing bed restrictor / distribution guide plate (6) are combined into one.

[0006] Further, the tray assembly is fixed by bolts, and the installation sequence is to install the tower ring first and then install other components, ensuring that the assembly can enter the tower from the flange.

[0007] Further, the tubular distributor (5) is placed in the clamping groove of the packing bed restrictor / distribution guide plate (6).

[0008] Further, the tray is divided into six layers, a total of seven segments of 42 layers of tray, the feed inlet is located at the 20th layer, and the tower top is provided with a reflux port, a thermometer port and a pressure gauge port.

[0009] Furthermore, the bottom of the tower adopts a variable diameter design from 600 to 900, and the tower body is equipped with interfaces for thermometer, pressure gauge and liquid level gauge. The liquid outlet of the tower bottom is divided into two parts, one part enters the reboiler and returns, and the other part directly enters the pump for output.

[0010] Beneficial effect: The small diameter tray structure of the present invention has a significant improvement in mass transfer efficiency

[0011] 1. Radial flow design: The tower tray adopts radial flow design. The liquid descends from the middle and flows to the surroundings, and then flows from the surroundings to the middle. This simplifies the structure and improves the mass transfer efficiency. It is especially suitable for small tower trays.

[0012] 2. Compact structure: The tubular distributor and the packed bed limiter / distribution guide plate are integrated into one, with a compact structure, which effectively utilizes the space in the tower and reduces the equipment volume and energy consumption.

[0013] 3. Easy installation: With the support of the equipment flange, the installation is easy. When the distance between the upper surface of the packing and the flange surface does not match the height of the distributor, it can be adjusted by increasing the number of flange gaskets to ensure the stability and reliability of the equipment.

[0014] 4. Efficient mass transfer: The tray not only collects liquid, but also has a mass transfer function, which improves the synthesis and purification efficiency of DMS and DMSO and ensures product quality.

[0015] The impact of the small-diameter tray combination structure on operating costs is mainly reflected in the following aspects:

[0016] 1. Installation cost

[0017] Easy Installation: Traditional tray installation is complex and requires multiple steps. Furthermore, it's difficult to insert the tray into the tower through the flange opening, increasing installation difficulty and time. The tray assembly structure of the present invention utilizes an optimized design and equipment flange support, making installation simple. If the distance between the packing top surface and the flange surface doesn't match the distributor height, the distance can be adjusted by adding flange gaskets, ensuring equipment stability and reliability. This significantly reduces installation time and labor costs.

[0018] Reduced installation time: Shorter installation time means that the equipment can be put into use more quickly, reducing downtime caused by the installation process and thus reducing production costs.

[0019] 2. Energy consumption cost

[0020] Compact structure: The tray combination structure of the present invention adopts a radial flow design, with liquid flowing from the center to the periphery and then from the periphery to the center. This design simplifies the structure and improves mass transfer efficiency, especially for small-scale trays. The compact structure reduces the volume of the equipment and energy consumption, thereby reducing operating costs. High-efficiency mass transfer: The tray not only collects liquid but also has mass transfer function, improving mass transfer efficiency and reducing the number of required tray layers, further reducing equipment energy consumption and operating costs.

[0021] 3. Maintenance cost

[0022] Structural simplification: The liquid collection and distribution functions of traditional trays are usually designed separately, resulting in low space utilization and large equipment volume. The present invention integrates the pipe distributor and the packing bed restrictor / distribution guide plate into one body, which is compact in structure and effectively utilizes the space inside the tower, reducing the complexity and maintenance difficulty of the equipment.

[0023] Easy maintenance: The compact structure and simple installation method make the maintenance of the equipment easier, reducing maintenance time and labor costs.

[0024] 4. Production efficiency

[0025] Improved product quality: The efficient mass transfer process ensures the synthesis and refining efficiency of DMS and DMSO, improves product quality, reduces the rate of defective products, and indirectly reduces production costs.

[0026] Reduced production time: The efficient mass transfer process can shorten the production cycle and improve production efficiency, thereby reducing the production cost per unit product.

[0027] 5. Equipment life

[0028] Reduced wear and tear: The compact structure and efficient mass transfer process reduce fluid impact and wear and tear inside the equipment, prolonging the service life of the equipment and reducing the frequency of equipment replacement and maintenance, thereby reducing long-term equipment costs. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The exploded view of the small-diameter tray combination structure of the present invention shows the assembly relationship of key components such as trays, pipe distributors, and packing bed restrictors / distribution guide plates.

[0030] Reference numerals: 1 - tray; 2 - upper flange; 3 - clamping piece; 4 - lower flange; 5 - pipe distributor; 6 - packing bed restrictor / distribution guide plate. DETAILED DESCRIPTION

[0031] In practical applications, the small-diameter tray combination structure of the present application can be adjusted and optimized according to specific process requirements. For example, the number of layers and grouping of the trays can be adjusted according to the height and processing capacity of the tower; the variable-diameter design of the tower bottom can be modified according to actual installation needs; the size and shape of the tubular distributor and the filler bed restrictor / distribution guide plate can be customized according to the diameter of the tower and the liquid flow. Through these optimizations, the small-diameter tray combination structure of the present application can better meet the needs of different application scenarios, improving the performance and efficiency of the tower equipment.

[0032] A small-diameter tray combination structure, from top to bottom, includes a tray 1, an upper flange 2, a clamping piece 3, a lower flange 4, a tubular distributor 5, and a filler bed restrictor / distribution guide plate 6; the tray 1 adopts a radial flow design, with liquid flowing from the middle to the periphery and then from the periphery to the middle; the tubular distributor 5 and the filler bed restrictor / distribution guide plate 6 are combined into one.

[0033] Specifically, the tubular distributor 5 is placed in the clamping slot of the filler bed restrictor / distribution guide plate 6.

[0034] The small-diameter tray combination structure of the present application includes the following key parts:

[0035] Tray design structure

[0036] 1. Radial flow design: the tray 1 adopts a radial flow design, with liquid flowing from the middle to the periphery and then from the periphery to the middle, which is different from the traditional left-right flow. This design is suitable for small trays, simplifying the structure and improving the mass transfer efficiency.

[0037] 2. Tray assembly: the tray assembly is composed of clamping pieces, pressure-reducing pipes, flanges, etc., and is fixed by bolts. The installation sequence is to install the tower ring first and then other components, ensuring that the assembly can be smoothly inserted into the tower from the flange opening.

[0038] 3. Multi-layer tray: the tray is divided into six layers, with a total of seven segments and 42 layers of trays, and the feed inlet is located at the 20th layer. The top of the tower is provided with a reflux port, a thermometer port, and a pressure gauge port for convenient monitoring and operation.

[0039] Tower equipment detail design

[0040] 1. Tower bottom design: the tower bottom adopts a variable-diameter design from 600 to 900 to adapt to group seat installation. The tower body is provided with thermometer, pressure gauge, and liquid level gauge interfaces for local display and remote transmission to the control room, facilitating real-time monitoring of equipment operation status.

[0041] 2. Tower kettle liquid outlet: The tower kettle liquid outlet is divided into two parts, one part enters the reboiler to return, and the other part directly enters the pump to output. The tower bottom technical ring plate has been designed with reserved anchor bolt holes, facilitating installation and fixation. The tubular distributor is combined with the packing bed limiter / distribution guide plate

[0042] 1. Integrated design: The tubular distributor is combined with the packing bed limiter / distribution guide plate as a whole, which utilizes the tower plate to not only collect liquid but also has mass transfer effect, compact structure and effective utilization of tower space.

[0043] 2. Easy installation: The equipment flange is used for holding, and the installation is simple. When the distance between the upper surface of the packing and the flange surface does not match the height of the distributor, the number of flange gaskets can be increased for adjustment, ensuring the stability and reliability of the equipment.

[0044] In summary, the small-diameter tower plate combined structure of the present application improves the mass transfer efficiency through optimized design, and significantly reduces the installation, energy consumption, maintenance and production costs. These improvements make the equipment more economical and efficient in long-term operation, especially suitable for small tower equipment, especially for the synthesis and refining process of DMS and DMSO.

[0045] The small-diameter tower plate combined structure of the present application can reduce the operating cost by 20% to 30%, based on the following points: installation cost: reducing 50% of installation time and labor cost.

[0046] Energy consumption cost: reducing 20% to 30% of energy consumption.

[0047] Maintenance cost: reducing 30% to 50% of maintenance time and labor cost.

[0048] Production efficiency: improving 10% to 20% of production efficiency.

[0049] These improvements can significantly reduce operating costs and improve the economic efficiency and competitiveness of the equipment. In summary, the small-diameter tower plate structure of the present application improves the mass transfer efficiency through optimized design.

Claims

1. A combination structure of small diameter trays, characterized in that: From top to bottom, it includes a tower plate (1), an upper flange (2), a clamp (3), a lower flange (4), a tubular distributor (5), and a packed bed restrictor / distribution guide plate (6); the tower plate (1) adopts a radial flow design, and the liquid descends from the middle and flows to the surroundings, and then flows from the surroundings to the middle; The tubular distributor (5) and the packed bed limiter / distribution guide plate (6) are integrated into one.

2. The combined structure of small diameter trays according to claim 1, characterized in that: The tower plate assembly is fixed by bolts. The installation order is to install the tower ring first, and then install other components to ensure that the entire assembly can be smoothly inserted into the tower from the flange opening.

3. The combined structure of small diameter trays according to claim 1, characterized in that: The tubular distributor (5) is placed in the slot of the packing bed limiter / distribution guide plate (6).

4. The combined structure of small diameter trays according to claim 1, characterized in that: The tower tray (1) is divided into a group of six layers, with a total of seven sections and 42 layers of tower trays. The feed port is located at the 20th layer, and the top of the tower is provided with a reflux port, a thermometer port and a pressure gauge port.

5. The combined structure of small diameter trays according to claim 1, characterized in that: The tower bottom adopts a variable diameter design from 600 to 900. The tower body is equipped with interfaces for thermometer, pressure gauge and liquid level gauge. The tower bottom liquid outlet is divided into two parts, one part enters the reboiler and returns, and the other part directly enters the pump for output.

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