Split self-suction type Venturi tube washer

A Venturi tube and self-priming technology, which is applied in the field of scrubbers, can solve the problems of unusable Venturi tube, complex structure, large pressure head loss, etc., and achieve the effect of ensuring integrity

Active Publication Date: 2014-02-12
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Venturi scrubbers are widely used in foreign reactor containment filtration systems. For example, in US Patent No. US07/171,656, it is mentioned that Venturi scrubbers are used for filtration, but there is no specific structure for Venturi scrubbers. Describe, especially the structure of the Venturi tube
The specific structure of the Venturi water scrubber used in industry is mentioned in the latest patent, such as the "Venturi tube gas scrubber" described in the patent 201120362897.4, which is mainly used for industrial dust removal. When using multiple nozzles, this makes the structure of the Venturi gas scr

Method used

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  • Split self-suction type Venturi tube washer
  • Split self-suction type Venturi tube washer
  • Split self-suction type Venturi tube washer

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Embodiment Construction

[0034] The present invention will be described below in conjunction with accompanying drawing

[0035] figure 1 Shown is a schematic diagram of the overall structure of the split self-priming Venturi tube scrubber. The conical independent shrinkage section 1.1 and the integrated outer sleeve 1.2 are coaxially assembled by bolts. During operation, the spacing of the annular liquid flow channel 1.3 can be adjusted by changing the thickness or the number of the gaskets. The outlet baffle 1.4 and the integrated outer casing 1.2 are connected by welding through the support rib 1.42. The thickness of the support rib 1.42 should be as small as possible under the premise of ensuring the strength. At the same time, the windward side of the support rib 1.42 adopts a streamline design, In order to reduce the flow resistance of gas at the outlet, the height value depends on the outlet design flow rate.

[0036] figure 2 Shown is a schematic diagram of the structure of the conical inde...

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PUM

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Abstract

The invention provides a split self-suction type Venturi tube washer which comprises an outer sleeve mainly comprising a contraction section and an expanding section, and further comprises a conical independent contraction section, wherein the conical independent contraction section is of a conical structure and is the same as the contraction section of the outer sleeve in shape, the conical independent contraction section is sleeved in the contraction section of the outer sleeve, and is connected with the contraction section of the outer sleeve through flanges at respective inlet ends, an annular liquid flowing channel is formed between the conical independent contraction section and the contraction section, a liquid sucking hole is formed in the contraction section of the outer sleeve, and an outlet baffle plate is arranged at the outlet end of the expanding section of the outer sleeve. Compared with a common Venturi tube washer, the split self-suction type Venturi tube washer is higher in removing efficiency. The split self-suction type Venturi tube washer is suitable for being used as a Venturi tube washer required by a filtration and emission system of pressurized water reactor containment, and is also suitable for an industrial dust removing process.

Description

technical field [0001] The invention relates to a scrubber, in particular to a Venturi tube scrubber. Background technique [0002] Nowadays, nuclear power is more and more popular as a clean and efficient energy source. Although the design of PWR nuclear power plants has implemented the principle of deep safety to ensure the safety of nuclear power plants under design basis accidents, there is still the possibility of accidents beyond design basis in nuclear power plants, which will lead to serious accidents like core meltdown pressure vessels . And if there are no measures to mitigate the accident, the molten core will react with the concrete floor to produce a large amount of non-condensable gas. The integrity of the last barrier, the containment vessel, was compromised, resulting in the leakage of radioactive material. [0003] The containment filtration and discharge system adopts an active pressure relief method to release the gas accumulated in the containment and ...

Claims

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Application Information

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IPC IPC(8): B01D47/10
Inventor 谷海峰孙中宁周艳民王军龙阎昌琪曹夏昕
Owner CHINA NUCLEAR POWER ENG CO LTD
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