Safety boiler applying coal gas to industry boiler

Abstract

This invention relates to a safety device for coal gas application on the industrial boiler including the industrial boiler, the coal gas generator, the air supply pipe and the gas transmission pipe connected to the coal gas generator. On the gas transmission pipe, the water seal attemperation device is positioned which includes upper and lower water storage chambers inside the water tank. The lower end of the auto escape pipe extends into the water of the upper water storage chamber 150mm to 500mm deep, the upper end stretches out from the water tank shell and connects the environment. One end of the gas transmission pipe is inserted into the lower water storage chamber horizontally. Before the end of the gas transmission end the baffle plate is positioned vertically, the end of which keep a certain distance from the water surface. The water drainage and coke removal valve is positioned at the bottom of the lower water storage chamber. The upper and lower water storage chambers are connected to the top of the shell, and / or the baffle plate is attached to the lateral wall of the upper water storage chamber.

Description

technical field [0001] The invention relates to a safety device for applying coal gas to industrial boilers. Background technique [0002] Chinese Patent Document No. CN2828644Y discloses a water-gas fired hot water boiler, which is characterized in that: the water-gas fired boiler is composed of a water-gas furnace body and a combustion furnace body connected to each other through a gas pipeline and a communication pipe; wherein, the water-gas furnace body includes a Cylindrical casing with external structure; installed on the top of the casing, the central part forms an annular upper water jacket with a coal charging hole; the furnace cover is set on the top of the coal charging hole; There is a furnace that can place coal, one side is provided with a return water pipe and a slag outlet, and the other side is provided with an annular lower water jacket connected with a circulating water pipe connected to the upper water jacket; the fire grate installed at the bottom of the...

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Problems solved by technology

Since the main components of water gas are CO, H 2 、CH 4 、H 2 S, H 2 O.CO 2 , N 2 With a certain amount of tar and carbon black, etc., the calorific value is about 5016-7200kJ / Nm 3 , the tar and carbon black in it are very easy to adhere to the control valve, internal components and pipe walls, etc., and even dry into asphalt, which is a great obstacle to cutting off the gas supply instantly and reliably. Because hot water boilers and other types of industrial boilers have The requirement of cutting off the gas supply instantaneously, and the water gas furnace is a continuous gas production device, it is difficult for the coal gas pipeline network with this structure to solve other problems such as instantaneous overpressure leakage, and its safety automatic control has not been solved, so in practice, this type Water gas boilers are rarely used

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