Venturi tube dust removal device

A technology of dust removal device and Venturi tube, which is applied in the direction of dispersed particle separation, chemical instruments and methods, and the use of liquid separation agents, can solve the problems that cannot meet the requirements of radioactive material removal, and achieve flow-induced vibration mitigation, liquid flow improvement, and air flow. The effect of speed increase

Inactive Publication Date: 2015-06-03
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This change in operation mode has led to direct reference to the Venturi tube design in other industrial fields, which cannot meet the requirements for the removal of radioactive substances such as aerosols and iodine in the containment exhaust in the containment filtration and discharge system of nuclear power plants.

Method used

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  • Venturi tube dust removal device

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] like figure 1 As shown, the Venturi tube dedusting device provided by the present invention is fixed on the dusty gas pipeline through the flange 6 . The Venturi tube dedusting device includes a constriction section 1, a throat section 2, and an expansion section 3, and the constriction section 1, the throat section 2, and the expansion section 3 are all conical shells. Wherein, the constriction section 1 and the throat section 2 are stacked, an annular channel is formed between the outer wall of the constriction section 1 and the inner wall of the throat section 2, and a plurality of small holes are arranged on the throat section 2; the lower end of the expansion section 3 and the The upper ends of the throat sections 2 are connected, and the top of the expansion section 3 is provided with supporting ribs 4 and outlet baffles 5, and openings ...

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Abstract

The invention belongs to a mechanical dust removal device and in particular relates to a venturi tube dust removal device. The device comprises a shrinkage section, a throat section and an expansion section, wherein the shrinkage section, the throat section and the expansion section are conical shells; the shrinkage section and the throat section are laminated; an annular channel is formed between the outer wall of the shrinkage section and the inner wall of the throat section; multiple small holes are formed in the throat section; the lower end of the expansion section is connected with the upper end of the throat section; and supporting ribs and an outlet baffle are arranged on the top of the expansion section. According to the device disclosed by the invention, the decontamination efficiency of a venturi tube can be obviously improved.

Description

technical field [0001] The invention belongs to a mechanical dust removal device, in particular to a Venturi tube dust removal device. Background technique [0002] The high-speed airflow generated by the Venturi nozzle is mixed with the water sprayed into the throat to achieve the dust removal effect. The industrial application of the Venturi tube as a wet dust collector has developed rapidly. In recent years, with the nuclear power With the development of technology and the emphasis on nuclear power safety, Venturi water scrubbers have been introduced into the containment filtration and discharge system of nuclear power plants to remove radioactive substances such as aerosols and iodine in the containment exhaust during severe reactor accidents. Although the filtration mechanism of Venturi scrubbers used in nuclear power plants and other industries is the same, their mode of operation is very different. In other industrial fields, Venturi tubes generally use forced extern...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D47/10
CPCB01D47/10
Inventor 王晓江阎昌琪杨理烽李军朱京梅李嫦月谷海峰丁亮刘长亮
Owner CHINA NUCLEAR POWER ENG CO LTD
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