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Liquid distributor, multi-stage efficient distributor and washing liquid spraying method

A technology of liquid distributor and distributor, applied in the field of washing liquid spraying, which can solve the problems that the uniformity of the absorbent and the integrity of the coverage cannot be guaranteed, the nozzles cannot achieve the best spraying effect at the same time, and the pressure change of the washing liquid is ignored. , to achieve the effects of simple structure, increased kinetic energy, and improved washing efficiency

Active Publication Date: 2021-03-12
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reasonable space configuration of the nozzle is the key to ensure the uniform liquid coverage of the washing tower section and meet the minimum liquid distribution volume of the section. Unreasonable configuration may lead to "loopholes", resulting in reduced washing effect and insufficient washing.
[0006] Patent CN 208786038U discloses a chemical exhaust gas spray scrubber, which uses the method of directly installing a nozzle on the spray pipe to spray and wash the washing liquid. The structure of the method is simple, but the pressure change of the washing liquid before and after the pipeline is ignored, so that the nozzles installed in different positions of the spray pipe cannot achieve the best spray effect at the same time
Patent CN208275174U discloses a scrubber for VOC exhaust gas purification, which can evenly spray the absorbent through the auxiliary shunt pipe and the spray head, but this arrangement cannot guarantee the uniformity of the distribution of the absorbent on the cross section of the spray scrubber and completeness of coverage

Method used

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  • Liquid distributor, multi-stage efficient distributor and washing liquid spraying method
  • Liquid distributor, multi-stage efficient distributor and washing liquid spraying method
  • Liquid distributor, multi-stage efficient distributor and washing liquid spraying method

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The present invention provides a liquid dispenser, see figure 1 , including a vertical cylinder 1 with a bottom seal, the cylinder 1 includes an upper feed chamber 2 and a lower distribution chamber 3, the inner wall of the feed chamber 2 is provided with a plurality of helical blades 4 from top to bottom, and the helical blades 4 The inner edge is connected to the vertical fixing column 5 in the middle. In order to reduce the weight, it is better to set the inside of the fixing column 5 as hollow. The distribution chamber 3 includes a plurality of partitions 6, the partitions 6 divide the distribution chamber 3 into a plurality of independent chambers 7, each independent chamber 7 has a through hole on its outer wall, and an outlet pipe 8 is connected to the through hole. The liquid enters from the top of the feeding chamber 2 and is accelerated by the spiral blade 4 to be distributed to each independent chamber 7 . Preferably, the volume of each independent chamber 7...

Embodiment 2

[0044] A high-efficiency distributor (two-stage) suitable for liquid spray, see Figure 4 and Figure 5 , including the above-mentioned liquid distributor as the central distributor 100 is also a first-level distributor, each outlet pipe 8 is connected to a second-level distributor 200 through a connecting pipe 12, and the central distributor 100 located in the middle is higher than the surrounding first-level distributors. In the secondary distributor 200, all the outlet pipes 8 are arranged tangentially along the outer wall of the distribution chamber 3, and the outlet pipes 8 of the second-stage distributor 200 on the lower floor are connected to the vertical extension pipe 9 downward, and the vertical extension pipe The bottom of 9 is connected with nozzle 10.

[0045] preferred, see image 3 and Figure 4 , the vertically extending pipe 9 has two lengths and two or more lengths are arranged at intervals, so that the heights of the nozzles 10 can be different, so that the...

Embodiment 3

[0051] When the required spraying area is greater than 78.5m2 2 , in order to ensure the local spraying effect, the high-efficiency distributor needs to adopt a three-stage spraying arrangement, and the specific structure can be found in Figure 9 and Figure 10 . The outlet pipe of the central distributor 100 is connected to the second-stage distributor 200 through the connecting pipe 12 , and the outlet pipe of the second-stage distributor 200 is connected to the third-stage distributor 300 through the connecting pipe 12 .

[0052] The high-efficiency distributor of the present invention can precisely control the spray coverage area when the single nozzle 10 and the multi-nozzle 10 are combined, thereby ensuring high-efficiency washing and strong adaptability. Using high-efficiency distributors in spray washing equipment (such as spray towers) and rationally arranging the distance between nozzles 10 can improve the gas washing efficiency.

[0053] The following specific e...

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Abstract

The invention provides a liquid distributor, a multi-stage efficient distributor containing the liquid distributor and suitable for liquid spraying and an arrangement method of the multi-stage efficient distributor. The liquid distributor comprises a vertical cylinder, the cylinder comprises a feeding cavity at the upper portion and a distribution cavity at the lower portion, spiral blades are annularly arranged on the inner wall of the feeding cavity, the inner side edges of the spiral blades are connected to a vertical fixing column, the distribution cavity comprises a plurality of partitionplates, the partition plates divide the distribution cavity into a plurality of independent cavities, a through hole is formed in the outer wall of each independent cavity, and an outlet pipe is connected to each through hole. The efficient distributor may include a multi-stage distributor. The liquid distributor serves as a center distributor, each outlet pipe is connected with a second-stage distributor through a connecting pipe, each second-stage distributor comprises an outlet pipe, the outlet pipes are downwards connected with vertical extending pipes, and the bottoms of the vertical extending pipes are connected with nozzles. The liquid distributor and the efficient distributor are simple in structure, uniform in fluid distribution, sufficient in coverage area and high in washing efficiency, and meanwhile a modular structure enables installation and maintenance to be more convenient.

Description

technical field [0001] The invention belongs to the technical field of gas purification, and in particular relates to a liquid distributor, a multi-stage high-efficiency distributor suitable for liquid spraying and a method for spraying washing liquid by using the high-efficiency distributor. Background technique [0002] In the petrochemical production process, when there are other types of gases or solid particles in a certain gas, it is sometimes necessary to spray and wash the gas to remove impurity gas components or solid particles, or to recover mixed gases through solvents one or several gas components. [0003] The main advantage of spray scrubbers over other scrubbers is the completely open design: there are no internal parts other than the nozzles, a feature that eliminates many of the fouling and clogging problems associated with other scrubbers. [0004] In a spray scrubber, absorption can be increased by reducing the droplet size or increasing the liquid-to-gas...

Claims

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Application Information

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IPC IPC(8): B05B1/34B05B1/02B01D53/79B01D47/06
CPCB05B1/3494B05B1/3468B05B1/02B01D47/06B01D53/79
Inventor 杨强代品一刘懿谦
Owner EAST CHINA UNIV OF SCI & TECH
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