Method for cleaning condenser waterway pipeline filler

Abstract

The invention discloses a method for cleaning fillers in a water path pipeline of a condenser, which comprises the following steps of: additionally arranging a one-way baffle at an inlet of the condenser, flushing the fillers in the pipeline into the condenser by utilizing water flow, and cleaning the fillers in the pipeline; a one-way baffle is made of a stainless steel plate, the thickness of the stainless steel plate is 1 mm, the diameter of an inlet of the condenser is 800 mm, the diameter of the stainless steel plate is designed to be 1000 mm, and the stainless steel plate can smoothly penetrate through the manhole of the condenser after being divided into two parts; a stainless steel plate is divided into two parts, rotating circular rings are welded to the two ends and the middle of the diameter position, 10 mm round steel penetrates through the rotating circular rings, the length of the round steel is 1000 mm, a one-way baffle made of stainless steel is placed into a condenser from a condenser manhole, and then the round steel on the baffle is welded to an inlet pipeline of the condenser. The welding length of the round steel is not less than 6 times of the diameter of the round steel.

Description

Technical Field

[0001] The invention relates to a method for cleaning fillers of a condenser water channel pipeline. Background Art

[0002] A control valve is installed on the inlet pipeline of the condenser designed by a certain turbine factory. The filler dropped from the cooling tower is transported to the inside of the condenser through a water pump, blocking the tube bundle. When the water is stopped for cleaning, a large amount of filler falls into the pipeline with the water flow, and only a small part of the filler remains on the condenser. Each time the filler is cleaned, only the filler remaining in the condenser can be cleaned, and the filler in the pipeline cannot be cleaned. Each cleaning is not thorough, and the filler in the pipeline is flushed into the condenser with the water flow during the next operation, blocking the tube bundle and reducing the heat exchange efficiency of the condenser.

[0003] The condenser of NK63 / 80 / 32 design in the blast furnace blast operation area of ​​Bagang is 3000㎡, with an inlet pipeline of 800mm. The filler on the cooling tower falls into the tower pool and enters the condenser through the circulating pump, blocking the condenser tube bundle, reducing the cooling water volume of the condenser, and reducing the heat exchange efficiency of the condenser, resulting in high exhaust temperature and high exhaust pressure of the turbine, affecting the operation of the turbine. In severe cases, it is necessary to reduce the load operation. Summary of the invention

[0004] The object of the present invention is to provide a method for cleaning the filler of a condenser water pipe, which is suitable for cleaning the filler of the condenser pipe and preventing the filler from clogging the condenser tube bundle, thereby improving the heat exchange efficiency of the condenser.

[0005] The technical scheme adopted by the present invention is a method for cleaning the filler of the condenser water pipeline, wherein a one-way baffle is installed at the inlet of the condenser, and the filler in the pipeline is flushed into the condenser by water flow to clean the filler in the pipeline; the manhole of the condenser is opened, and the filler flushed out from the pipeline is cleaned; wherein: the one-way baffle is made of a stainless steel plate, the thickness of the stainless steel plate is 1mm, so that the water flow can smoothly flush the stainless steel plate, and the diameter of the stainless steel plate is made according to the size of the condenser inlet aperture, and the condenser inlet aperture is 800mm, then the stainless steel plate The steel plate is designed to have a diameter of 1000mm. After being cut into two, it can be smoothly inserted into the manhole of the condenser. The stainless steel plate is cut into two, and rotating rings are welded at both ends and the middle of the diameter. 10mm round steel is passed through the rotating ring. The length of the round steel is 1000mm. The one-way baffle made of stainless steel is placed into the condenser through the condenser manhole, and then the round steel on the baffle is welded to the condenser inlet pipe. During welding, the welding length of the round steel is not less than 6 times the diameter of the round steel to ensure the welding strength and prevent the round steel on the baffle from being washed away by water impact.

[0006] Through this method, the filler in the condenser water inlet pipe is thoroughly cleaned, effectively preventing the filler from clogging the condenser tube bundle, ensuring the heat exchange efficiency of the condenser, ensuring the exhaust pressure and exhaust temperature of the turbine are within the required range, and ensuring stable operation of the turbine. The filler in the condenser water inlet pipe of the Bagang blast furnace blast operation area is cleaned to ensure the heat exchange efficiency of the condenser, and the actual effect is remarkable. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a structural diagram of a one-way baffle plate at a condenser water inlet pipe port used in the present invention; Figure 2 It is a motion diagram of the filler in the condenser water inlet pipeline being flushed in the present invention. Implementation

[0008] A method for cleaning the packing of the condenser water pipe, such as Figure 1 , 2 As shown, a one-way baffle 4 is installed at the condenser inlet 1, and the filler 5 in the pipeline is flushed into the condenser 6 by water flow to clean the filler 5 in the pipeline; the condenser manhole is opened to clean the filler 5 flushed out of the pipeline; wherein: the one-way baffle 4 is made of stainless steel plate, the thickness of the stainless steel plate is 1mm, so that the water flow can smoothly flush the stainless steel plate, and the diameter of the stainless steel plate is made according to the size of the condenser inlet aperture. The condenser inlet 1 aperture is 800mm, and the diameter of the stainless steel plate is designed to be 1000mm. mm, after being cut into two, it can be smoothly inserted from the manhole of the condenser; the stainless steel plate is cut into two, and a rotating ring 3 is welded at both ends and the middle of the diameter position, and a 10mm round steel is passed through the rotating ring 3, and the length of the round steel is 1000mm. The one-way baffle 4 made of stainless steel is put into the condenser 6 from the condenser manhole, and then the round steel on the baffle is welded to the condenser inlet pipe. During welding, the welding length of the round steel is not less than 6 times the diameter of the round steel to ensure the welding strength and prevent the round steel on the baffle from being washed away by the impact of water flow. The present invention is applicable to and can be extended to clean the filler in the water inlet pipeline of the condenser, and all the residual filler in the pipeline is flushed into the condenser for easy cleaning, which effectively ensures the heat exchange efficiency of the condenser and ensures the safe and stable operation of the unit.

Claims

1. A method for cleaning the filler of a condenser water pipe, characterized in that A one-way baffle is installed at the entrance of the condenser, and the filler in the pipeline is flushed into the condenser by water flow, and the filler in the pipeline is cleaned; the manhole of the condenser is opened, and the filler flushed out from the pipeline is cleaned: wherein: the one-way baffle is made of stainless steel plate, the thickness of the stainless steel plate is 1mm, so that the water flow can smoothly flush the stainless steel plate, and the diameter of the stainless steel plate is made according to the size of the condenser inlet aperture. The condenser inlet aperture is 800mm, and the diameter of the stainless steel plate is designed to be 1000mm. After being cut into two, it can be smoothly penetrated from the condenser manhole; the stainless steel plate is cut into two, and rotating rings are welded at both ends and the middle of the diameter position, and 10mm round steel is passed through the rotating ring. The length of the round steel is 1000mm, and the one-way baffle made of stainless steel is placed into the condenser from the condenser manhole, and then the round steel on the baffle is welded to the condenser inlet pipeline. During welding, the welding length of the round steel is not less than 6 times the diameter of the round steel to ensure the welding strength and prevent the round steel on the baffle from being washed away by water flow impact.

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