Flow-separation back-mixing-free spraying tower disc

A tray and back-mixing technology, which is applied in the field of mass transfer equipment and heat transfer, to achieve the effects of improving mass transfer driving force and tray efficiency, uniform liquid level, and improving gas-liquid separation efficiency

Active Publication Date: 2013-03-13
TIANJIN CHUANGJU TECHNOLGOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tray comprehensively adopts multi-downcomer structure, liquid guide groove structure and three-dimensional jet mass transfer unit structure, which has high mass transfer efficiency, large operating flexibility, large flux, strong anti-blocking performance, small mist entrainment, and liquid No back-mixing and other characteristics, it can solve a series of problems existing in the existing trays such as cross flow, bias flow, retention and large liquid level gradient, greatly improving the efficiency of the tray, product yield and product grade, and the effect of energy saving and environmental protection is obvious

Method used

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  • Flow-separation back-mixing-free spraying tower disc
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  • Flow-separation back-mixing-free spraying tower disc

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Design a split-flow non-backmixing jet tray (see Figure 1-4 ), the tray is composed of the upper tray 1 and the lower tray 2, the upper tray 1 includes 2 downcomers 32, 16 downcomers 4, 1 central liquid receiver 51 and 2 other receivers Liquid tank 52, 4 sets of three-dimensional jet mass transfer units 6, 2 sets of central liquid guide tank 91 and 2 sets of other liquid guide tanks 92; the lower tray 2 includes 3 downcomers 3, 16 downcomers 4, 2 Liquid receiving tank 5, 4 groups of three-dimensional jet mass transfer units 6, 2 groups of central liquid guiding tank 91 and 2 groups of other liquid guiding tanks 92; downcomer 3 and liquid receiving tank 5 adopt rectangular groove structure; Bobbin structure; the three-dimensional jet mass transfer unit 6 is a new vertical sieve plate.

[0043] Its working principle and process are: the liquid after mass transfer from the upper set of trays falls into the liquid receiving tank 5 in this set of trays through the downcome...

Embodiment 2

[0045] Design a split-flow non-backmixing jet tray (see Figure 5-6 ), the difference is that on the basis of the main structure of Example 1, a strip-shaped liquid level balance tank 8 is provided in the middle position of the tray in a direction perpendicular to the liquid receiving plate, and the liquid level balance tank 8 It is connected with the downcomer 3; its working principle is basically the same as that of Embodiment 1, because the liquid level balance tank 8 is provided, and the liquid level balance tank 8 is connected with the downcomer 3, so that each end of the downcomer can be After the liquid in the tank 3 is collected in the liquid level balance tank 8, it is evenly distributed to each downcomer tank 3, so that the liquid is evenly distributed and the liquid level gradient is reduced. This structure is more suitable for cases where the tower diameter is larger than DN3000.

Embodiment 3

[0047] Design a split-flow non-backmixing jet tray (see Figure 7 ), the tray structure is basically the same as that of Example 2, the difference is that the liquid level balance tank 8 is connected to the liquid receiving tank 5; the working principle is: the liquid level balancing tank 8 is connected to the liquid receiving tank 5, so that each end can be After the liquid in the liquid tank 5 is collected in the liquid level balance tank 8, it is evenly distributed to each liquid receiving tank 5, so that the liquid is evenly distributed, which is beneficial to reduce the gradient of the liquid level.

[0048] What is not mentioned in the present invention is applicable to the prior art.

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Abstract

The invention discloses a flow-separation back-mixing-free spraying tower disc. The tower disc is formed by combining an upper-layer tower disc and a lower-layer tower disc; and each tower disc comprises liquid descending grooves, liquid descending pipes, liquid accepting grooves, three-dimensional spraying and mass transferring units and liquid guide grooves. The flow-separation back-mixing-free spraying tower disc is characterized in that the long-strip-shaped liquid accepting grooves are formed in the horizontal position of the center of the tower disc; each long-strip-shaped liquid descending groove is arranged between each two adjacent liquid accepting grooves; liquid descending openings are designed in the bottoms of the liquid descending grooves; each liquid descending opening corresponds to one liquid descending pipe, and each liquid descending pipe stretches and is fixed in each liquid descending groove; the three-dimensional spraying and mass transferring units are arranged among the liquid descending grooves and the liquid accepting grooves; the liquid guide grooves, which are flow-separation-plate-type liquid guide grooves, are arranged on the peripheries of cap covers of the three-dimensional spraying and mass transferring units; one liquid guide groove corresponds to one three-dimensional spraying and mass transferring unit; the shapes and the structures of the upper and lower tower discs are the same basically; and one set of liquid descending pipes on the lower edge of one liquid descending groove of the upper-layer tower disc correspond to one liquid accepting groove of the lower-layer tower disc in a staggered manner, so that the upper-layer tower disc and the lower-layer tower disc are combined into the double-layer flow-separation back-mixing-free spraying tower disc.

Description

technical field [0001] The invention relates to heat transfer and mass transfer equipment in chemical engineering, in particular to a split-flow non-backmixing ejection tray for chemical heat transfer and mass transfer separation. The tray is especially suitable for the working condition of dealing with large liquid volume and easy foaming system. Background technique [0002] As an important component of mass transfer equipment, trays are widely used in chemical separation operations. People have always focused on the development of individual mass transfer components, and there have been various forms of trays named after individual components, such as sieve holes, bubble caps, float valves, and improved guides on this basis. Sieve holes, pilot float valves, etc. The improvement and innovation of individual mass transfer components, although it has improved the point efficiency of the tray and improved the efficiency of the entire plate, it cannot fundamentally solve the...

Claims

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Application Information

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IPC IPC(8): B01D3/20B01D53/18B01J19/32
CPCB01D3/20
Inventor 王柱祥商恩霞张兵刘武昌
Owner TIANJIN CHUANGJU TECHNOLGOY
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