High-pressure water soot blower based on anti-corrosion nozzle anti-blocking system and soot removing method of high-pressure water soot blower
An anti-corrosion, high-pressure water technology, applied in combustion methods, removal of solid residues, treatment of combustion products, etc., can solve problems such as aggravating APH ash blocking and ash flushing
Pending Publication Date: 2021-10-29
浙江莱梦德电力设备有限公司
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Problems solved by technology
The transformation of the SCR system will further aggravate the ash blocking of APH, because the conversion of SO2 to SO3 in the flue gas increases, and under the action of the catalyst, it combines with ammonia to form ammonium bisulfate, which causes the ash blocking of the air preheater
Since the ash layer at the cold end of the air preheater may be very hard, the ash cannot be washed away by conventional flushing methods, and professional high-pressure water washing must be used to wash away the ash. For this reason, we propose a high-pressure anti-corrosion nozzle anti-blocking system. The water soot blower and its ash removal method are used to solve the above problems
Method used
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[0034] Example: such as Figure 1-7As shown, the present invention provides a high-pressure water soot blower based on an anti-corrosion nozzle anti-blocking system, including a drive assembly 1, the drive assembly 1 includes a concave seat 101, and a servo motor 102 is installed on the top of the concave seat 101. The output end of the servo motor 102 is equipped with a driving wheel 103, the driving wheel 103 is covered with a belt 104, the inner side of the concave seat 101 is equipped with an annular disc 108, and one side of the annular disc 108 is annularly distributed with A plurality of first moving rods 106, the first cylinder 105 is sleeved on the outside of the first moving rod 106, a symmetrical block is installed at one end of the first cylinder 105, and the outer side of the first moving rod 106 is set There is a symmetrical card slot, and the card block is slidably arranged inside the card slot. A first spring 107 is sheathed on the outside of the first cylinder...
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The invention discloses a high-pressure water soot blower based on an anti-corrosion nozzle anti-blocking system, and particularly relates to the technical field of soot blowers. The high-pressure water soot blower comprises a driving assembly, the driving assembly comprises a concave base, a soot blowing assembly is installed in the concave base, the soot blowing assembly comprises an outer threaded sleeve, an inner threaded sleeve is arranged at the end of one end of the outer threaded sleeve in a threaded mode, one end of the outer threaded sleeve is connected with a ball valve assembly, the ball valve assembly comprises a valve body, a valve rod is installed on one side of the middle of the valve body, a gear is fixedly installed on the valve rod, an opening and closing assembly is installed in the concave base and comprises a moving block, a limiting plate is installed on one side of the middle of the moving block, and a rack is installed on the side face of one end of the moving block. The inner threaded sleeve rotates to drive the outer threaded sleeve to rotate, the moving block moves to drive the gear to rotate, water flow can be sprayed out of a spray head through rotation of the gear, and the interior of an air pre-heater can be cleaned in all directions.
Description
technical field [0001] The invention relates to the technical field of soot blowers, in particular to a high-pressure water soot blower based on an anti-corrosion nozzle anti-blocking system and an ash removal method thereof. Background technique [0002] Judging from the status quo of various domestic power plants, low-temperature corrosion and ash plugging at the air pre-cooling end are common problems at present, and it is not easy to solve them. The increase in differential pressure on both sides of the air preheater will seriously affect the safe operation of large coal-fired boilers, and ash plugging is the main reason for this problem. Therefore, once the air preheater reaches the corresponding use cycle, the heat exchange element needs to be flushed. The transformation of the SCR system will further aggravate the ash blocking of APH, because the conversion of SO2 to SO3 in the flue gas increases, and under the action of the catalyst, it combines with ammonia to form...
Claims
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IPC IPC(8): F23J3/02
CPCF23J3/02F23J2700/001
Inventor 姜建勇张莹蒋旭初傅伟平
Owner 浙江莱梦德电力设备有限公司