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Supercharged boiler deflagration-preventing device and method

A technology for a supercharged boiler and an alarm device, which is applied in the combustion method, the safety device of the combustion chamber, the combustion chamber, etc., can solve the problems of the boiler deflagration accident and the inability to control the deflagration.

Inactive Publication Date: 2011-02-16
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Handle according to the abnormal situation of furnace combustion to prevent deflagration. This kind of measure has a complete technology at present, is widely used, and the effect is relatively good. However, deflagration accidents often occur in the boilers installed with these devices during operation. Here, in addition to man-made In addition to the factors, there are limitations of this protection
Existing explosion-proof devices cannot control the occurrence of deflagration, and can only protect the furnace by timely pressure relief after deflagration occurs

Method used

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  • Supercharged boiler deflagration-preventing device and method
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  • Supercharged boiler deflagration-preventing device and method

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Embodiment Construction

[0019] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0020] Such as figure 1 As shown, the anti-explosion device for a booster boiler includes a sampling device 0 , an oil gas concentration detection device 6 and an alarm device 7 .

[0021] Such as figure 2 As shown, the oil and gas concentration sampling device 0 is composed of a sampling probe 1, a filter 2, a cooling system 3, an automatic extraction device 4, a sampling chamber 5, and the like. The sampling probe 1 is made of high-temperature-resistant (1500°C) compatible material, which is impact-resistant and corrosion-resistant. The cooling system 3 is a casing heat exchanger, the flue gas goes inside the pipe, the cooling water goes between the pipes, and the outlet temperature of the flue gas is adjusted by the flow of the cooling water.

[0022] Such as image 3 As shown, the oil and gas concentration detection and alarm device consists of a test pro...

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Abstract

The invention provides a supercharged boiler deflagration-preventing device and method. The supercharged boiler deflagration-preventing device comprises a sampling device, an oil-gas concentration detection device and a warning device. The oil-gas concentration detection device comprises a sampling probe, a filter, a cooling system, an automatic extracting device and a sampling chamber. The sampling probe is inserted into a boiler furnace, oil gas at the periphery of the sampling probe is extracted by the automatic extracting device, filtered and cooled to enter the sampling chamber, the mixing gas is extracted from the chamber by the oil-gas concentration detection device and subjected to catalytic combustion in a catalytic combustion device, the produced combustion product is analyzed by a gas analyzer, the gas analyzer displays the oil-gas concentration and compares the concentration with a setting value so as to determine whether to warn, and the warning device warns when needing alarm. The invention can be applied to the operation protection of land and ship supercharged boilers.

Description

technical field [0001] The invention relates to a safety protection device for a boiler. Specifically, it is a device for preventing deflagration in the furnace of a pressurized boiler. The invention also relates to a safety protection method for the boiler. Background technique [0002] When the mixture of oil, gas and air in the furnace of the pressurized boiler reaches a certain concentration, an explosion will occur when it encounters an open flame. The concentration at this time is called the explosion limit, and the concentration limit of the explosion is divided into an upper limit and a lower limit. The concentration of the mixed gas has the danger of explosion within the explosion limit. Once an explosion occurs, a major accident of furnace destruction and death will be caused. Therefore, explosion-proof devices are generally installed on boilers to relieve pressure when the boiler deflagrates to prevent the furnace from exploding. [0003] The Chinese patent do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23M11/00
Inventor 宋福元李彦军杨龙滨张国磊张鹏孙宝芝李晓明
Owner HARBIN ENG UNIV
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