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Impact leakage preventing device of suspending downspout column plate

A downcomer and anti-shock technology, applied in the direction of distillation separation, chemical instruments and methods, separation methods, etc., can solve problems such as unstable operation, and achieve the effects of avoiding vicious short circuits, low cost, and improved mechanical strength

Inactive Publication Date: 2004-04-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The operation of this structure at the design point can eliminate a certain amount of impact leakage, but when the load changes deviate from the design point, the gas short circuit will occur due to the thin liquid layer, and the operation will be unstable.

Method used

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  • Impact leakage preventing device of suspending downspout column plate
  • Impact leakage preventing device of suspending downspout column plate
  • Impact leakage preventing device of suspending downspout column plate

Examples

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Embodiment

[0019] Embodiment: Below in conjunction with accompanying drawing, the present invention will be further described.

[0020] The anti-impact leakage device 4 of the suspended downcomer tray is characterized in that the anti-impact leakage device 4 of the suspended downcomer tray consists of multiple rows of oblique holes punched on the liquid-receiving bubbling area 3 of the tray 1 The multi-row oblique holes can be composed of two parts of oblique holes 6 with opposite inclination directions and the same number (as shown in Figure 2(a)), or two adjacent rows of oblique holes with opposite inclination directions and two adjacent rows The same number of inclined holes 6 is formed (as shown in Figure 2 (b)), the area of ​​the opening area of ​​the multi-row inclined holes is 60% to 120% of the projected area of ​​the downcomer bottom hole 5 on the tray 1, and the multi-row inclined holes The opening rate of the hole opening area is 80% to 120% of the opening rate of the other bu...

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Abstract

The impact leakage preventing device is set in the liquid accepting bubble region of suspending downspout column plate, and has several rows of inclined holes for gas to pass through. It consists of two parts of inclined holes in the same number and opposite inclined directions, and the two parts of inclined holes may be several rows arranged alternately. The device can guide the direction of the impact liquid leakage, reduce the amount of impact liquid leakage to the next layer of column plate downspout by over 80 %, improve the gas-liquid contact state in the column plate and raise column plate efficiency by 5-10 %.

Description

technical field [0001] The invention relates to a suspended downcomer tray anti-shock liquid leakage device widely used in various fractionation towers, absorption towers and desorption towers in oil refining, chemical industry, petrochemical industry and light industry. technical background [0002] A large number of towers are used in oil refining, chemical, petrochemical and light industries to separate mixtures to obtain high-purity products or remove harmful substances in gas and water to protect the environment. With the rapid development of the petroleum and chemical industry, energy is becoming increasingly scarce, equipment is larger and capacity is continuously expanded to increase production, improving the processing capacity and efficiency of towers, and reducing energy consumption have become the mainstream of tower development today. The technical progress of tower internals can produce great economic and social benefits. [0003] Various high-throughput trays...

Claims

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Application Information

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IPC IPC(8): B01D3/20
Inventor 姚克俭
Owner CHINA PETROLEUM & CHEM CORP
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