Anti-blocking and derusting method for steam path of thermal power plant

Abstract

An anti-blocking rust removal method for a steam pipeline of a thermal power plant comprises the steps that when the inner wall of the steam pipeline needs to be subjected to rust removal, valves on a first connecting section and a second connecting section of a steam pipe of the thermal power plant are closed at the moment, and valves on a second reversing pipe and a first reversing pipe are opened; a switch of a booster pump is started, the booster pump injects a rust remover in a rust remover box into a rust removal inlet pipe through a chemical inlet pipe and a vertical pipe, the rust remover enters a steam pipeline, and after rust on the inner wall of the steam pipeline is removed through the rust remover, the rust is collected in a recycling box through a rust removal outlet pipe and a recycling pipe. The rust removal work of the steam pipe is completed, and the situation that after the steam pipe is used for a long time, rust is likely to be generated on the inner wall of the steam pipe, the flow in the steam pipe is reduced, and the steam pipe is likely to be blocked is avoided. The derusting device is used for derusting the steam pipeline of the thermal power plant.

Description

Technical Field

[0001] The invention relates to the field of pipeline rust removal, in particular to a steam pipeline rust removal method used in a thermal power plant. Background Art

[0002] At present, the external energy transmission of thermal power plants is mainly to supply the city's electricity or heat demand, and the heat supply is mainly based on the centralized heating network that transports hot water. Only a few cities still have small-scale steam heating networks. However, the current steam heating has large heat losses, and the end is mainly to meet the heating needs of users. At present, with the rapid development of data centers, the demand for electricity and air conditioning and refrigeration in data centers or digital cities will increase. The demand for electricity or refrigeration loads due to digitalization or informatization in the whole society is growing faster and faster. Many newly built data centers or smart office buildings meet their air conditioning and refrigeration load needs by building electric compression refrigeration units; After searching, the prior art disclosed (application number: CN202020973219.0) a trigeneration system for steam pipe network transportation in a thermal power plant; After long-term use, the inner wall of the steam pipe is prone to rust, which reduces the flow inside the steam pipe and easily causes blockage of the steam pipe. Summary of the invention

[0003] The object of the present invention is to provide a method for preventing blockage and removing rust in a steam circuit of a thermal power plant, so as to solve the defects mentioned in the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, a method for preventing clogging and removing rust from a steam line in a thermal power plant is provided. When it is necessary to remove rust from the inner wall of the steam pipeline, the valves on the first connecting section and the second connecting section of the steam pipeline of the thermal power plant are closed, and the valves on the second reversing pipe and the first reversing pipe are opened; the switch of the booster pump is started, and the booster pump injects the rust remover in the rust remover box into the inside of the rust removal inlet pipe through the medicine inlet pipe and the vertical pipe, and then injects the rust remover into the steam pipeline. After the rust on the inner wall of the steam pipeline is removed by the rust remover, the rust is collected in the inside of the recovery box through the rust removal outlet pipe and the recovery pipe, and the rust removal work of the steam pipeline is completed, so as to avoid the inner wall of the steam pipe being easily rusted after long-term use, reducing the flow inside the steam pipe, and easily causing blockage of the steam pipe.

[0005] A steam pipeline rust removal device used in a thermal power plant comprises a steam pipeline and a rust removal device body, wherein a connecting pipe is installed at the bottom of a rust removal agent tank of the rust removal device body, and the end of the connecting pipe is connected to the inlet end of a booster pump, and the outlet end of the booster pump is connected to a drug inlet pipe, and the end of the drug inlet pipe is connected to a vertical pipe, and one end of the vertical pipe away from the drug inlet pipe is connected to a first reversing pipe through a flange; One end of the steam pipeline is fixed with a rust removal inlet pipe through a flange, and the other end of the steam pipeline is fixed to the rust removal outlet pipe through a flange. At the same time, a second reversing pipe is installed at the bottom of the rust removal outlet pipe, and the bottom of the second reversing pipe is fixed to the recovery pipe through a flange, and the end of the recovery pipe is inserted into the recovery box.

[0006] Preferably, one end of the steam pipeline is connected to the first connecting section of the steam pipe of the thermal power plant through a rust-removing inlet pipe, and the other end of the steam pipeline is connected to the second connecting section of the steam pipe of the thermal power plant through a rust-removing outlet pipe.

[0007] Preferably, valves are installed on the first connecting section of the thermal power plant steam pipe and the second connecting section of the thermal power plant steam pipe, and valves are installed on the second reversing pipe and the first reversing pipe.

[0008] Preferably, the rust removal outlet pipe and the second reversing pipe are arranged in a "T" shape, and the rust removal inlet pipe and the first reversing pipe are arranged in a "T" shape. At the same time, the first reversing pipe is connected to the recovery box through the rust removal inlet pipe, the steam pipeline, the rust removal outlet pipe, the second reversing pipe, and the recovery pipe.

[0009] Preferably, the first reversing pipe is connected to the rust remover box through a vertical pipe, a medicine inlet pipe, a booster pump, and a connecting pipe, and the diameter of the medicine inlet pipe is smaller than the diameter of the vertical pipe.

[0010] Preferably, the rust removing agent in the rust removing agent box enters the steam pipeline from the vertical pipe and the rust removing inlet pipe to remove rust from the inner wall of the steam pipeline, and then enters the recovery box through the second reversing pipe and the recovery pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The booster pump injects the rust remover in the rust remover box into the rust removal inlet pipe through the medicine inlet pipe and the vertical pipe, and then enters into the steam pipeline. After the rust on the inner wall of the steam pipeline is removed by the rust remover, it is collected in the recovery box through the rust removal outlet pipe and the recovery pipe, thus completing the rust removal of the steam pipeline and avoiding the inner wall of the steam pipe from rusting after long-term use, reducing the flow inside the steam pipe, and causing blockage of the steam pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the process flow of the device structure of the present invention; Figure 3 This is a schematic diagram of the rust removal inlet pipe connection structure of the present invention.

[0013] Numbers in the figure: 1, steam pipeline; 2, first connecting section of steam pipe in thermal power plant; 3, second connecting section of steam pipe in thermal power plant; 4, main body of rust removal device; 40, rust remover box; 41, connecting pipe; 42, booster pump; 43, drug inlet pipe; 44, vertical pipe; 45, rust removal inlet pipe; 46, rust removal outlet pipe; 47, recovery pipe; 48, recovery box; 49, valve; 50, second reversing pipe; 51, first reversing pipe. Implementation

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] A method for preventing clogging and removing rust from the steam line of a thermal power plant is provided. When it is necessary to remove rust from the inner wall of the steam pipeline, the valves on the first connecting section and the second connecting section of the steam pipeline of the thermal power plant are closed, and the valves on the second reversing pipe and the first reversing pipe are opened; the switch of the booster pump is started, and the booster pump injects the rust remover in the rust remover box into the rust removal inlet pipe through the medicine inlet pipe and the vertical pipe, and then enters the steam pipeline. After the rust on the inner wall of the steam pipeline is removed by the rust remover, the rust is collected in the recovery box through the rust removal outlet pipe and the recovery pipe, thereby completing the rust removal of the steam pipeline, and preventing the inner wall of the steam pipeline from being easily rusted after long-term use, thereby reducing the flow inside the steam pipeline, and easily causing blockage of the steam pipeline.

[0016] See also Figure 1-3 The present invention provides a steam pipeline rust removal device used in a thermal power plant, comprising a steam pipeline 1 and a rust removal device body 4, a connecting pipe 41 is installed at the bottom of a rust removal agent box 40 of the rust removal device body 4, and the end of the connecting pipe 41 is connected to the inlet end of a booster pump 42, and the outlet end of the booster pump 42 is connected to a medicine feed pipe 43, and the end of the medicine feed pipe 43 is connected to a vertical pipe 44, and one end of the vertical pipe 44 away from the medicine feed pipe 43 is connected to a first reversing pipe 51 through a flange; One end of the steam pipeline 1 is fixed with a rust removal inlet pipe 45 through a flange, and the other end of the steam pipeline 1 is fixed to the rust removal outlet pipe 46 through a flange. At the same time, a second reversing pipe 50 is installed at the bottom of the rust removal outlet pipe 46, and the bottom of the second reversing pipe 50 is fixed to the recovery pipe 47 through a flange, and the end of the recovery pipe 47 is inserted into the recovery box 48.

[0017] When it is necessary to remove rust from the inner wall of the steam pipeline 1, the valve 49 on the first connection section 2 and the second connection section 3 of the steam pipeline of the thermal power plant is closed, and the valve 49 on the second reversing pipe 50 and the first reversing pipe 51 is opened; At this time, the switch of the booster pump 42 is started, and the booster pump 42 injects the rust remover in the rust remover box 40 into the rust removal inlet pipe 45 through the medicine inlet pipe 43 and the vertical pipe 44, and enters into the steam pipeline 1. After the rust on the inner wall of the steam pipeline 1 is removed by the rust remover, it is collected in the recovery box 48 through the rust removal outlet pipe 46 and the recovery pipe 47, completing the rust removal work on the steam pipeline 1, avoiding the inner wall of the steam pipeline from rusting after long-term use, reducing the flow inside the steam pipeline, and easily causing blockage of the steam pipeline.

[0018] As a preferred embodiment, one end of the steam pipeline 1 is connected to the first connecting section 2 of the thermal power plant steam pipe through a rust-removing inlet pipe 45, and the other end of the steam pipeline 1 is connected to the second connecting section 3 of the thermal power plant steam pipe through a rust-removing outlet pipe 46.

[0019] like Figure 1 As shown: the rust on the inner wall of the steam pipeline 1 can be removed by a rust remover, and the removal method is to inject the rust remover into the interior of the steam pipeline 1 through a corrosion-resistant booster pump 42 to remove the rust on the inner wall of the steam pipeline 1.

[0020] As a preferred implementation, valves 49 are installed on both the first connection section 2 and the second connection section 3 of the thermal power plant steam pipe, and valves 49 are installed on both the second reversing pipe 50 and the first reversing pipe 51.

[0021] As a preferred embodiment, the rust removal outlet pipe 46 and the second reversing pipe 50 are arranged in a "T" shape, and the rust removal inlet pipe 45 and the first reversing pipe 51 are arranged in a "T" shape. At the same time, the first reversing pipe 51 is connected to the recovery box 48 through the rust removal inlet pipe 45, the steam pipeline 1, the rust removal outlet pipe 46, the second reversing pipe 50, and the recovery pipe 47.

[0022] like Figure 1 As shown: the derusting inlet pipe 45 is screwed and installed between the steam pipeline 1 and the first connecting section 2 of the steam pipe of the thermal power plant; The rust-removing outlet pipe 46 is screwed and installed between the steam pipeline 1 and the second connecting section 3 of the steam pipe of the thermal power plant; By providing the rust removal inlet pipe 45 and the rust removal outlet pipe 46 , the rust removal agent box 40 , the steam pipeline 1 , the recovery box 48 and a plurality of groups of pipelines are combined together to form a structure for removing rust from the inner wall of the steam pipeline 1 .

[0023] As a preferred embodiment, the first reversing pipe 51 is connected to the rust remover box 40 through the vertical pipe 44 , the medicine feed pipe 43 , the booster pump 42 , and the connecting pipe 41 , and the diameter of the medicine feed pipe 43 is smaller than the diameter of the vertical pipe 44 .

[0024] As a preferred embodiment, the rust removing agent inside the rust removing agent box 40 enters the steam pipeline 1 from the vertical pipe 44 and the rust removing inlet pipe 45 to remove rust from the inner wall of the steam pipeline 1, and then enters the recovery box 48 through the second reversing pipe 50 and the recovery pipe 47.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preventing clogging and removing rust from a steam line in a thermal power plant, characterized in that: When it is necessary to remove rust from the inner wall of the steam pipeline, the valves on the first connecting section and the second connecting section of the steam pipeline of the thermal power plant are closed, and the valves on the second reversing pipe and the first reversing pipe are opened; the switch of the booster pump is started, and the booster pump injects the rust remover in the rust remover box into the rust removal inlet pipe through the medicine inlet pipe and the vertical pipe, and enters the steam pipeline. After the rust on the inner wall of the steam pipeline is removed by the rust remover, the rust is collected in the recovery box through the rust removal outlet pipe and the recovery pipe, and the rust removal work of the steam pipeline is completed, so as to avoid rust on the inner wall of the steam pipe after long-term use, reduce the flow inside the steam pipe, and easily cause blockage of the steam pipe.

2. A steam pipeline rust removal device used in the method according to claim 1, characterized in that: A connecting pipe (41) is installed at the bottom of the rust remover box (40) of the rust removal device body (4), and the end of the connecting pipe (41) is connected to the inlet end of the booster pump (42), and the outlet end of the booster pump (42) is connected to the medicine inlet pipe (43), and the end of the medicine inlet pipe (43) is connected to the vertical pipe (44), and the end of the vertical pipe (44) away from the medicine inlet pipe (43) is connected to the first reversing pipe (51) through a flange; a rust removal inlet pipe (45) is fixedly installed at one end of the steam pipeline (1) through a flange, and the other end of the steam pipeline (1) is fixed to the rust removal outlet pipe (46) through a flange, and a second reversing pipe (50) is installed at the bottom of the rust removal outlet pipe (46), and the bottom of the second reversing pipe (50) is fixed to the recovery pipe (47) through a flange, and the end of the recovery pipe (47) is inserted into the recovery box (48).

3. The steam pipeline rust removal device according to claim 2, characterized in that: One end of the steam pipeline (1) is connected to the first connection section (2) of the steam pipe of the thermal power plant via a derusting inlet pipe (45), and the other end of the steam pipeline (1) is connected to the second connection section (3) of the steam pipe of the thermal power plant via a derusting outlet pipe (46).

4. The steam pipeline rust removal device according to claim 3, characterized in that: The first connecting section (2) of the thermal power plant steam pipe and the second connecting section (3) of the thermal power plant steam pipe are both equipped with valves (49), and the second reversing pipe (50) and the first reversing pipe (51) are both equipped with valves (49).

5. The steam pipeline rust removal device used in a thermal power plant according to claim 4, characterized in that: The rust removal outlet pipe (46) and the second reversing pipe (50) are arranged in a "T" shape, and the rust removal inlet pipe (45) and the first reversing pipe (51) are arranged in a "T" shape. The first reversing pipe (51) is connected to the recovery box (48) via the rust removal inlet pipe (45), the steam pipeline (1), the rust removal outlet pipe (46), the second reversing pipe (50), and the recovery pipe (47).

6. The steam pipeline rust removal device used in a thermal power plant according to claim 5, characterized in that: The first reversing pipe (51) is connected to the rust remover tank (40) via the vertical pipe (44), the medicine inlet pipe (43), the booster pump (42), and the connecting pipe (41), and the diameter of the medicine inlet pipe (43) is smaller than the diameter of the vertical pipe (44).

7. The steam pipeline rust removal device used in a thermal power plant according to claim 6, characterized in that: The rust removing agent in the rust removing agent box (40) enters the steam pipeline (1) through the vertical pipe (44) and the rust removing inlet pipe (45) to remove rust from the inner wall of the steam pipeline (1), and then enters the recovery box (48) through the second reversing pipe (50) and the recovery pipe (47).

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