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Novel combined guide float valve tray

A float valve tray and tray technology, which is applied in the field of new combined guide float valve tray, can solve the problems affecting the operation performance of the solid valve tray, restricting the opening height of the valve plate, and small side gap area of ​​the solid valve, etc. The effect of eliminating the non-activation zone, increasing the operating performance and improving the efficiency of the tray

Inactive Publication Date: 2014-01-08
SHANGHAI ZAOYANG CHEM SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, because there are valve legs at both ends of the solid valve, when the solid valve is punched, the valve legs at both ends produce a tensile effect, which restricts the opening height of the valve plate, resulting in a small side clearance area of ​​the solid valve, which affects the solid valve. Operability of valve trays

Method used

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  • Novel combined guide float valve tray
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  • Novel combined guide float valve tray

Examples

Experimental program
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Effect test

Embodiment 1

[0089] see Figure 7 , when the liquid flow intensity on the tray (that is, the liquid flow rate per meter of weir length) L3 / m.h, the layout of the new combined guide valve tray is as follows Figure 7 shown. The liquid on the upper tray flows into the opening area of ​​the tray 1 through the liquid tray 10, and the gas flowing out from the rectangular guide valve 2, the trapezoidal guide valve 3 and the first guide valve 4, and the gas on the tray 1. The liquid contacts, then the gas rises, and the liquid flows to the lower tray through the downcomer 13. In the figure, the rectangular guide float valve 2 is as Figure 3a , 3b As shown, the length of the rectangular guide float valve is 80mm, and the lengths of the upstream edge 211 of the bonnet and the downstream edge 212 of the bonnet are 35mm; the trapezoidal guide float valve 3 is as Figure 4a , 4b As shown, the length of the trapezoidal guide float valve is 80 mm, the length of the upstream side 311 of the valve ...

Embodiment 2

[0091] see Figure 8 , when the liquid flow intensity on the tray L=30~60m 3 / m.h, the layout of the new combined guide valve tray is as follows Figure 8 As shown, the structural type and main dimensions of the rectangular pilot float valve 2 and the trapezoidal pilot float valve 3 are the same as those of the above-mentioned embodiment 1. Figure 8The first guide solid valve 4 in the structure features as shown in Figure 5, the valve plate 41 is directly punched out from the tray 1, forming a valve hole 44 and a side gap 45, and the length range of the valve hole 44 along the liquid flow direction is 50-120mm, the width range is 25-35mm, the opening height range of the valve plate 41 is 8-14mm, on the horizontal section of the valve plate 41, there is an arch bridge type small fixed valve 7, and its fixed valve hole 71 The length along the liquid flow direction ranges from 20 to 40 mm, and the width ranges from 8 to 16 mm. At the front end of the first guide solid valve 4...

Embodiment 3

[0094] Please refer to Figure 9, when the liquid flow intensity on the tray increases further, L>60m 3 / m.h, the layout of the new combined guide valve tray is as follows Figure 9 shown. The rectangular guide float valve 2 and the trapezoidal guide float valve 3 in the figure have the same structural type and main dimensions as those of the above-mentioned embodiment 1. Due to the high flow intensity of this example, in addition to the first guide valve 4, a second guide valve 5 with a relatively large thrust is also used. The structural characteristics of the second guide valve 6 are as follows Figure 6a , 6b As shown, the valve plate 51 is directly punched out from the tray 1 to form a valve hole 54 and a side gap 55. The length of the valve hole 54 along the liquid flow direction ranges from 50 to 120 mm, and the length of the upstream edge 52 of the valve plate is in the range of 30-40mm, the length of the downstream edge 53 of the valve plate is 20-30mm. The opening...

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Abstract

The invention relates to a novel combined guide float valve tray which comprises a tray body. The tray body comprises a middle rectangular area and arch areas located on the two sides of the rectangular area, guide float valves and guide fixed valves are arranged on the surface of the tray body, the guide fixed valves and the tray body are maintained in a relative static state, and the guide float valves move up and down relative to the tray body. By means of the structure, the novel combined guide float valve tray comprises the guide fixed valves in a proper ratio, the pressure drop of the tray body is reduced, processing capability is improved, the guide fixed valves are capable of well eliminating liquid level gradients and liquid stagnation areas on the tray body for various different liquid loads through proper arrangement due to the fact that the guide fixed valves have large driving force, and thus the efficiency of the tray body is improved; due to the fact that the pressure drop of the guide fixed valves is small, the gas speed of valve holes is high, the function of a bubbling accelerator is achieve, liquid is made to start bubbling immediately once entering an open hole area of the tray body, the whole tray body is triggered to completely enter a bubbling state, inactive areas on the tray body are eliminated, liquid leakage is reduced, and the operation performance of the tray body is enlarged.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a novel combined guiding valve tray. Background technique [0002] Tray tower is an important gas-liquid mass transfer equipment, which is widely used in chemical industry, oil refining and petrochemical industry. There are many types of trays, commonly used in industry are sieve trays, valve trays and solid valve trays. Sieve trays are simple in structure and low in cost, but less flexible in operation. There are floating parts on the floating valve tray, which can automatically adjust the gas phase channel within a certain range, and has greater operating flexibility. Among the valve trays, the valves are circular F1 (or V1) valve trays, which have been widely used in industry. With the continuous advancement of tower technology, it is found that the F1 valve tray has obvious shortcomings, mainly including: the liquid on the tray is greatly back-mixed, the liquid ...

Claims

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Application Information

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IPC IPC(8): B01D3/18B01D3/20
Inventor 卢钢路秀林
Owner SHANGHAI ZAOYANG CHEM SCI & TECH
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