CN113295020A - Online cleaning device for steam turbine condenser and using method thereof - Google Patents

Online cleaning device for steam turbine condenser and using method thereof Download PDF

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Publication number
CN113295020A
CN113295020A CN202110662647.0A CN202110662647A CN113295020A CN 113295020 A CN113295020 A CN 113295020A CN 202110662647 A CN202110662647 A CN 202110662647A CN 113295020 A CN113295020 A CN 113295020A
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condenser
liquid outlet
liquid inlet
pipe
branch
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韦冉
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Daye Special Steel Co Ltd
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Daye Special Steel Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28BSTEAM OR VAPOUR CONDENSERS
    • F28B1/00Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/02Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00Details
    • F28G15/003Control arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00Cleaning by flushing or washing, e.g. with chemical solvents

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

本发明属于凝汽器在线清洗技术领域,涉及汽轮机凝汽器在线清洗装置及其使用方法。该汽轮机连接有多个凝汽器,每个凝汽器均具有冷却液进口与冷却液出口,每个冷却液进口通过冷却进液支路连接在冷却液进水管上;清洗装置包括配有清洗药液的水箱;水箱的出液口连接有主进液管,主进液管上设置有加药泵,主进液管的输出端连接有多个进液支管,每个进液支管连接一个冷却进液支路,进液支管上设置有阀门;水箱的回液口连接有主出液管,主出液管的输入端连接有多个出液支管,每个出液支管连接一个冷却出液支路,出液支管上设置有阀门。实现清洗装置单独对一个凝汽器进行清洗,而其余凝汽器能够正常工作,不影响汽轮机系统的运行。

Figure 202110662647

The invention belongs to the technical field of on-line cleaning of condensers, and relates to an on-line cleaning device for steam turbine condensers and a use method thereof. The steam turbine is connected with a plurality of condensers, each condenser has a cooling liquid inlet and a cooling liquid outlet, and each cooling liquid inlet is connected to the cooling liquid inlet pipe through a cooling liquid inlet branch; The water tank of the liquid medicine; the liquid outlet of the water tank is connected with the main liquid inlet pipe, the main liquid inlet pipe is provided with a dosing pump, the output end of the main liquid inlet pipe is connected with a plurality of liquid inlet branch pipes, and each liquid inlet branch pipe is connected with one The cooling liquid inlet branch is provided with a valve; the liquid return port of the water tank is connected with the main liquid outlet pipe, the input end of the main liquid outlet pipe is connected with a plurality of liquid outlet branch pipes, and each liquid outlet branch pipe is connected with a cooling outlet. The liquid branch is provided with a valve on the liquid outlet branch. The cleaning device can clean one condenser alone, and the other condensers can work normally without affecting the operation of the steam turbine system.

Figure 202110662647

Description

Online cleaning device for steam turbine condenser and using method thereof
Technical Field
The invention belongs to the technical field of on-line cleaning of condensers, and particularly relates to an on-line cleaning device for a steam turbine condenser and a using method thereof.
Background
In the normal production process of a power plant, strict standards are set for temperature control of various working media, and in order to meet the requirements of the production process, heat exchange devices are required to be added in various systems, and an oil cooler and a steam turbine condenser of an oil system achieve the purpose of controlling the temperature of various media through reverse and forward flow exchange of cold and hot media.
Because the cooling water of the condenser comes from the circulating water, the influence of the water quality is serious due to the scaling phenomenon of the pipe wall of the condenser due to long-period operation, the vacuum of a unit is greatly influenced, and the direct consequence is that the power generation load cannot come, the heat loss is increased, and the power generation efficiency is low. The cleaning of the condenser is carried out after the shutdown every time, which seriously influences the generated energy and the coal gas balance of the power plant and has large and wide influence range. And when the inner wall of the circulating cooling tube bundle of the condenser is seriously scaled, the tube bundle can be corroded and damaged, so that circulating water permeates and flows into boiler water, and potential safety hazards exist.
The existing shutdown is used for cleaning the condenser, the required time period is long, the cost is high, the labor intensity is high, and the generated energy is seriously influenced. And the disintegration cleaning process will have the following problems: during the disassembly and cleaning of the condenser, the system is free of standby condenser equipment, once the operating equipment has problems, the standby condenser cannot be switched into the system to operate in time, and hidden danger is brought to the stable operation of the unit; the condenser of current power plant adopts plate-type condenser more, and plate-type condenser is more strict to the installation technology requirement at the dismouting in-process, appears leaking the problem in between the heat transfer medium easily after the repacking, and on the other hand disintegrates and washs the condenser, can lead to the gasket between the condenser to damage, increases the cost of overhaul.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to provide an online cleaning device for a steam turbine condenser and a using method thereof, which at least solve the problems of long required time period, high cost, high labor intensity and the like when the existing device is shut down to clean the condenser.
In order to achieve the above purpose, the invention provides the following technical scheme:
an online cleaning device for a steam turbine condenser is characterized in that a plurality of condensers are connected to a steam turbine, each condenser is provided with a cooling liquid inlet and a cooling liquid outlet, each cooling liquid inlet is connected to a cooling liquid inlet pipe through a cooling liquid inlet branch, and each cooling liquid outlet is connected to a cooling liquid outlet pipe through a cooling liquid outlet branch;
the cleaning device comprises a water tank provided with cleaning liquid medicine;
a liquid outlet of the water tank is connected with a main liquid inlet pipe, and a dosing pump is arranged on the main liquid inlet pipe and used for pumping cleaning liquid medicine; the output end of the main liquid inlet pipe is connected with a plurality of liquid inlet branch pipes, each liquid inlet branch pipe is connected with a cooling liquid inlet branch pipe, and valves for controlling the on-off of pipelines are arranged on the liquid inlet branch pipes;
the liquid return port of the water tank is connected with a main liquid outlet pipe, the input end of the main liquid outlet pipe is connected with a plurality of liquid outlet branch pipes, each liquid outlet branch pipe is connected with a cooling liquid outlet branch pipe, and valves for controlling the on-off of the pipelines are arranged on the liquid outlet branch pipes.
According to the online condenser cleaning device, preferably, a water inlet valve for controlling the on-off of a pipeline is arranged on the main liquid inlet pipe; and a water return valve for controlling the on-off of the pipeline is arranged on the main liquid outlet pipe.
According to the online condenser cleaning device, preferably, two condensers are provided;
the liquid inlet branch pipes are provided with two, and the liquid outlet branch pipes are provided with two.
The online cleaning device for the condenser preferably comprises an on-off valve arranged on the cooling liquid inlet branch, and a connection point of the liquid inlet branch and the cooling liquid inlet branch is located between the on-off valve and the cooling liquid inlet.
In the above online cleaning device for the condenser, preferably, the cooling liquid outlet branch is provided with an on-off valve, and a connection point of the liquid outlet branch and the cooling liquid outlet branch is located between the on-off valve and the cooling liquid outlet.
In the above on-line condenser cleaning device, the PH of the cleaning solution is preferably in a range of 1.8 to 2.2.
The online condenser cleaning device preferably has a connection point between the main liquid inlet pipe and the liquid inlet branch pipe located in the middle of the two cooling liquid inlet branch pipes, and the two liquid inlet branch pipes have the same length.
In the above online cleaning device for the condenser, preferably, a connection point of the main liquid outlet pipe and the liquid outlet branch pipe is located between the two cooling liquid outlet branch pipes, and the two liquid outlet branch pipes have the same length.
The invention also provides a using method of the online cleaning device for the steam turbine condenser, wherein the cleaning device is the online cleaning device for the steam turbine condenser, and the using method comprises the following steps:
s1, only one condenser is cleaned each time, and the rest condensers work normally; a cooling liquid inlet branch connected with the condenser to be cleaned and a valve on a cooling liquid outlet branch are closed, and a liquid inlet branch pipe and a valve on a liquid outlet branch pipe communicated with the condenser to be cleaned are opened; the water inlet valve and the water return valve are opened;
a cooling liquid inlet branch connected with the normally working condenser and a on-off valve on a cooling liquid outlet branch are opened, and a liquid inlet branch pipe and a valve on a liquid outlet branch pipe communicated with the normally working condenser are closed;
s2, turning on a chemical feeding pump, enabling cleaning chemical to enter the condenser to be cleaned through a main liquid inlet pipe and a liquid inlet branch pipe, and then returning to a water tank through a liquid outlet branch pipe and a main liquid outlet pipe;
s3, supplementing cleaning liquid medicine into the water tank, keeping the pH value range of the cleaning liquid medicine between 1.8 and 2.2, sampling and analyzing the circulating cleaning liquid medicine, and finishing the medicine washing process when the hardness and turbidity value of the cleaning liquid medicine are not changed any more;
s4, opening on-off valves on a cooling liquid inlet branch and a cooling liquid outlet branch which are connected with the condenser to be cleaned, closing valves on a liquid inlet branch and a liquid outlet branch which are communicated with the condenser to be cleaned, closing the water inlet valve and the water return valve, and enabling the cleaned condenser to start to work normally;
and (5) circulating the steps S1-S4, and cleaning the rest condensers independently until all condensers are cleaned.
In the method for using the on-line cleaning device for the condenser, preferably, in step S3, after 5 to 8 hours of cyclic chemical washing, when the hardness and turbidity value of the cleaning chemical do not change any more, the chemical washing is ended, and the cleaning chemical is neutralized to be neutral by alkali and discharged;
and then adding clear water into the water tank, circularly flushing the condenser until the effluent is free from turbidity, and ending the drug washing process when the pH value of the effluent is neutral.
Has the advantages that:
the invention relates to an online cleaning device for a steam turbine condenser, wherein the output end of a main liquid inlet pipe is connected with a plurality of liquid inlet branch pipes, the input end of a main liquid outlet pipe is connected with a plurality of liquid outlet branch pipes, and a pair of liquid inlet branch pipes and the liquid outlet branch pipes are connected with a condenser; in addition, the communication and isolation between the condenser and a steam turbine system are controlled by controlling the opening and closing of an on-off valve on a cooling liquid inlet branch and a cooling liquid outlet branch which are connected with the same condenser; thereby realize that belt cleaning device washs a condenser alone, and other condensers can normally work, do not influence steam turbine system's operation, finally realize the online washing of condenser.
Drawings
Fig. 1 is a schematic structural diagram of an online condenser cleaning device (a steam turbine system is connected with two condensers) in an embodiment of the invention.
In the figure: 1. a water tank; 2. a dosing pump; 3. a main liquid inlet pipe; 4. a main liquid outlet pipe; 5. a water inlet valve; 6. a valve; 7. a liquid inlet branch pipe; 8. a cooling liquid inlet branch; 9. an on-off valve; 10. a condenser; 11. a cooling liquid outlet branch; 12. a water return valve; 13. a liquid outlet branch pipe; 14. a coolant outlet pipe; 15. and a cooling liquid inlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
According to the embodiment of the invention, as shown in fig. 1, the invention provides an online cleaning device for a steam turbine condenser, wherein a plurality of condensers 10 are connected in a steam turbine system, each condenser 10 is provided with a cooling liquid inlet and a cooling liquid outlet, each cooling liquid inlet is connected to a cooling liquid inlet pipe 15 through a cooling liquid inlet branch 8, and each cooling liquid outlet is connected to a cooling liquid outlet pipe 14 through a cooling liquid outlet branch 11; the cleaning device comprises a water tank 1 provided with cleaning liquid medicine; a liquid outlet of the water tank 1 is connected with a main liquid inlet pipe 3, a dosing pump 2 is arranged on the main liquid inlet pipe 3, and the dosing pump 2 is used for pumping cleaning liquid medicine; the output end of the main liquid inlet pipe 3 is connected with a plurality of liquid inlet branch pipes 7, each liquid inlet branch pipe 7 is connected with a cooling liquid inlet branch pipe 8, and a valve 6 for controlling the on-off of a pipeline is arranged on each liquid inlet branch pipe 7; a liquid return port of the water tank 1 is connected with a main liquid outlet pipe 4, the input end of the main liquid outlet pipe 4 is connected with a plurality of liquid outlet branch pipes 13, each liquid outlet branch pipe 13 is connected with a cooling liquid outlet branch 11, and a valve 6 for controlling the on-off of a pipeline is arranged on each liquid outlet branch pipe 13.
A water inlet valve 5 for controlling the on-off of the pipeline is arranged on the main liquid inlet pipe 3; a water return valve 12 for controlling the on-off of the pipeline is arranged on the main liquid outlet pipe 4. When the cleaning device needs to be used, the water inlet valve 5 and the water return valve 12 are opened, when the cleaning device does not need to be used, the water inlet valve 5 and the water return valve 12 are closed, the water tank 1 and the dosing pump 2 are isolated from the condenser 10, when the condenser 10 needs to be cleaned again, the water inlet valve 5 and the water return valve 12 are opened, and the water tank 1 and the dosing pump 2 are connected with the condenser 10 needing to be cleaned.
In the present embodiment, two condensers 10 are provided; two liquid inlet branch pipes 7 are arranged, and two liquid outlet branch pipes 13 are arranged. In other embodiments, there may be a plurality of condensers 10 (e.g., 3, 4, 5, etc.), and the plurality of condensers 10 are arranged in parallel, in which case, the number of inlet branch pipes 7 and outlet branch pipes 13 is the same as that of condensers 10.
An on-off valve 9 is arranged on the cooling liquid inlet branch 8, and the connection point of the liquid inlet branch pipe 7 and the cooling liquid inlet branch 8 is positioned between the on-off valve 9 and the cooling liquid inlet. The cooling liquid outlet branch 11 is provided with an on-off valve 9, and the connection point of the liquid outlet branch 13 and the cooling liquid outlet branch 11 is positioned between the on-off valve 9 and the cooling liquid outlet. On cooling feed liquor branch road 8 and the cooling play liquid branch road 11 that link to each other through control and same condenser 10, opening and closing of on-off valve 9, control this condenser 10 and steam turbine system's intercommunication and isolation, and then be convenient for isolate single condenser 10 from steam turbine system, wash, when single condenser 10 washs, other condensers 10 can normally work, do not influence steam turbine system's operation.
The pH value of the cleaning solution is in the range of 1.8-2.2 (optionally, the pH value is 1.8, 1.9, 2.0, 2.1, 2.2, etc.). The PH value of the cleaning liquid medicine is kept acidic, so that the cleaning liquid medicine is guaranteed to have a good cleaning effect all the time, and the cleaning device is guaranteed to have high cleaning efficiency.
The connecting point of the main liquid inlet pipe 3 and the liquid inlet branch pipes 7 is positioned in the middle of the two cooling liquid inlet branch pipes 8, and the two liquid inlet branch pipes 7 are the same in length. The connecting point of the main liquid outlet pipe 4 and the liquid outlet branch pipes 13 is positioned between the two cooling liquid outlet branches 11, and the lengths of the two liquid outlet branch pipes 13 are the same. Every feed liquor branch pipe 7's length is the same, and every goes out liquid branch pipe 13's length the same to guarantee that the washing circuit of being connected between every condenser 10 and the belt cleaning device is all the same, and then can guarantee that each condenser 10 all has higher cleaning performance, and has the same cleaning time, thereby guarantee that each condenser 10 all has better cleaning efficiency.
The invention also provides a using method of the online cleaning device for the steam turbine condenser, the cleaning device is the online cleaning device for the steam turbine condenser 10, and the using method comprises the following steps:
s1, only one condenser 10 is cleaned each time, and the rest condensers 10 work normally; a cooling liquid inlet branch 8 connected with a condenser 10 to be cleaned and an on-off valve 9 on a cooling liquid outlet branch 11 are closed, and a liquid inlet branch pipe 7 and a valve 6 on a liquid outlet branch pipe 13 which are communicated with the condenser 10 to be cleaned are opened; the water inlet valve 5 and the water return valve 12 are opened; and a cooling liquid inlet branch 8 connected with a normal-working condenser 10 and an on-off valve 9 on a cooling liquid outlet branch 11 are opened, and a liquid inlet branch pipe 7 communicated with the normal-working condenser 10 and a valve 6 on a liquid outlet branch pipe 13 are closed.
S2, the chemical feeding pump 2 is turned on, cleaning chemical enters the condenser 10 to be cleaned through the main liquid inlet pipe 3 and the liquid inlet branch pipe 7, and then returns to the water tank 1 through the liquid outlet branch pipe 13 and the main liquid outlet pipe 4.
S3, supplementing cleaning liquid medicine into the water tank 1, keeping the pH value range of the cleaning liquid medicine between 1.8-2.2, performing cyclic medicine washing for 5-8 hours, sampling and analyzing the cyclic cleaning liquid medicine, and finishing the medicine washing process when the hardness and turbidity value of the cleaning liquid medicine are not changed any more; neutralizing the cleaning liquid medicine by alkali to be neutral and discharging. Then adding clear water into the water tank 1, circularly flushing the condenser 10 until the effluent is free from turbidity, and ending the drug washing process when the pH value of the effluent is neutral.
The scale in the condenser 10 is removed through the drug washing process, and then the residual cleaning liquid medicine in the condenser 10 is removed through water washing, so that the pipe wall of the condenser 10 is prevented from being corroded by the cleaning liquid medicine.
S4, opening a on-off valve 9 on a cooling liquid inlet branch 8 and a cooling liquid outlet branch 11 which are connected with the condenser 10 to be cleaned, closing a valve 6 on a liquid inlet branch pipe 7 and a liquid outlet branch pipe 13 which are communicated with the condenser 10 to be cleaned, closing a water inlet valve 5 and a water return valve 12, and enabling the condenser 10 which is cleaned to start to work normally.
And (5) circulating the steps S1-S4, and cleaning the rest condensers independently until all condensers are cleaned.
In summary, according to the technical scheme of the online cleaning device for the steam turbine condenser and the using method thereof provided by the invention, the plurality of condensers are arranged in the steam turbine system in parallel, and the online cleaning device isolates a single condenser from the steam turbine system, so that the cleaning of the single condenser is realized under the condition that the normal operation of the steam turbine system is not influenced.
A plurality of liquid inlet branch pipes are arranged on the main liquid inlet pipe, a plurality of liquid outlet branch pipes are arranged on the main liquid outlet pipe, and a pair of liquid inlet branch pipes and a pair of liquid outlet branch pipes are connected with a condenser; in addition, the communication and isolation between the condenser and a steam turbine system are controlled by controlling the opening and closing of an on-off valve on a cooling liquid inlet branch and a cooling liquid outlet branch which are connected with the same condenser; thereby realize that belt cleaning device washs a condenser alone, and other condensers can normally work, do not influence steam turbine system's operation, finally realize the online washing of condenser. And the cleaning circuit of being connected between every condenser and the belt cleaning device is the same for each condenser all has higher cleaning performance, and has the same cleaning time, thereby guarantees that each condenser all has better cleaning efficiency.
The above description is only exemplary of the invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the invention is intended to be covered by the appended claims.

Claims (10)

1.一种汽轮机凝汽器在线清洗装置,其特征在于,1. a steam turbine condenser on-line cleaning device, is characterized in that, 该汽轮机连接有多个凝汽器,每个所述凝汽器均具有冷却液进口与冷却液出口,每个所述冷却液进口均通过冷却进液支路连接在冷却液进水管上,每个所述冷却液出口均通过冷却出液支路连接在冷却液出水管上;The steam turbine is connected with a plurality of condensers, each condenser has a cooling liquid inlet and a cooling liquid outlet, and each cooling liquid inlet is connected to a cooling liquid inlet pipe through a cooling liquid inlet branch. Each of the cooling liquid outlets is connected to the cooling liquid outlet pipe through the cooling liquid outlet branch; 所述清洗装置包括配有清洗药液的水箱;The cleaning device includes a water tank equipped with cleaning liquid; 所述水箱的出液口连接有主进液管,所述主进液管上设置有加药泵,所述加药泵用于泵送清洗药液;所述主进液管的输出端连接有多个进液支管,每个所述进液支管连接一个冷却进液支路,所述进液支管上设置有用于控制管路通断的阀门;The liquid outlet of the water tank is connected with a main liquid inlet pipe, and the main liquid inlet pipe is provided with a dosing pump, which is used for pumping cleaning liquid; the output end of the main liquid inlet pipe is connected to There are a plurality of liquid inlet branch pipes, each of the liquid inlet branch pipes is connected to a cooling liquid inlet branch pipe, and the liquid inlet branch pipe is provided with a valve for controlling the on-off of the pipeline; 所述水箱的回液口连接有主出液管,所述主出液管的输入端连接有多个出液支管,每个所述出液支管连接一个冷却出液支路,所述出液支管上设置有用于控制管路通断的阀门。The liquid return port of the water tank is connected with a main liquid outlet pipe, the input end of the main liquid outlet pipe is connected with a plurality of liquid outlet branch pipes, each of the liquid outlet branch pipes is connected with a cooling liquid outlet branch, and the liquid outlet pipe is connected with a cooling liquid outlet branch. The branch pipe is provided with a valve for controlling the on-off of the pipeline. 2.根据权利要求1所述的凝汽器在线清洗装置,其特征在于,所述主进液管上设置有用于控制管路通断的进水阀;所述主出液管上设置有用于控制管路通断的回水阀。2. The condenser online cleaning device according to claim 1, wherein the main liquid inlet pipe is provided with a water inlet valve for controlling the on-off of the pipeline; the main liquid outlet pipe is provided with a water inlet valve for The return valve that controls the on-off of the pipeline. 3.根据权利要求2所述的凝汽器在线清洗装置,其特征在于,所述凝汽器设置有两个;3. The condenser on-line cleaning device according to claim 2, wherein the condenser is provided with two; 所述进液支管设置有两根,所述出液支管设置有两根。There are two liquid inlet branch pipes and two liquid outlet branch pipes. 4.根据权利要求3所述的凝汽器在线清洗装置,其特征在于,所述冷却进液支路上设置有通断阀,所述进液支管与冷却进液支路的连接点位于所述通断阀与冷却液进口之间。4 . The on-line condenser cleaning device according to claim 3 , wherein an on-off valve is provided on the cooling liquid inlet branch, and the connection point between the liquid inlet branch pipe and the cooling liquid inlet branch is located in the cooling liquid inlet branch. 5 . Between the on-off valve and the coolant inlet. 5.根据权利要求3所述的凝汽器在线清洗装置,其特征在于,所述冷却出液支路上设置有通断阀,所述出液支管与冷却出液支路的连接点位于所述通断阀与冷却液出口之间。5 . The on-line condenser cleaning device according to claim 3 , wherein an on-off valve is provided on the cooling liquid outlet branch, and the connection point between the liquid outlet branch pipe and the cooling liquid outlet branch is located in the cooling liquid outlet branch. 6 . Between the on-off valve and the coolant outlet. 6.根据权利要求1所述的凝汽器在线清洗装置,其特征在于,所述清洗药液的PH值范围在1.8~2.2之间。6 . The on-line condenser cleaning device according to claim 1 , wherein the pH value of the cleaning liquid is between 1.8 and 2.2. 7 . 7.根据权利要求3所述的凝汽器在线清洗装置,其特征在于,所述主进液管与所述进液支管的连接点位于两个个所述冷却进液支路的中间,两个个所述进液支管的长度均相同。7. The condenser on-line cleaning device according to claim 3, wherein the connection point of the main liquid inlet pipe and the liquid inlet branch pipe is located in the middle of the two cooling liquid inlet branches, and the two Each of the liquid inlet branch pipes has the same length. 8.根据权利要求3所述的凝汽器在线清洗装置,其特征在于,所述主出液管与所述出液支管的连接点位于两个所述冷却出液支路的中间,两个所述出液支管的长度均相同。8. The condenser on-line cleaning device according to claim 3, wherein the connection point of the main liquid outlet pipe and the liquid outlet branch pipe is located in the middle of the two cooling liquid outlet branches, and the two The lengths of the liquid outlet branch pipes are all the same. 9.一种汽轮机凝汽器在线清洗装置的使用方法,其特征在于,所述清洗装置为权利要求1~8任一所述的凝汽器在线清洗装置,所述使用方法包括以下步骤:9. A method of using a steam turbine condenser on-line cleaning device, wherein the cleaning device is the condenser on-line cleaning device according to any one of claims 1 to 8, and the using method comprises the following steps: S1、每次仅清洗一个凝汽器,其余的凝汽器正常工作;与待清洗凝汽器连接的冷却进液支路与冷却出液支路上的通断阀关闭,与待清洗凝汽器连通的进液支管与出液支管上的阀门打开;所述进水阀与回水阀打开;S1. Only one condenser is cleaned at a time, and the rest of the condensers work normally; the on-off valves on the cooling liquid inlet branch and the cooling liquid outlet branch connected with the condenser to be cleaned are closed, and the condenser to be cleaned is connected with the condenser to be cleaned. The valves on the connected liquid inlet branch pipe and the liquid outlet branch pipe are opened; the water inlet valve and the water return valve are opened; 与正常工作的凝汽器连接的冷却进液支路与冷却出液支路上的通断阀打开,与正常工作的凝汽器连通的进液支管与出液支管上的阀门关闭;The on-off valves on the cooling liquid inlet branch and the cooling liquid outlet branch connected with the normal working condenser are opened, and the valves on the liquid inlet branch pipe and the liquid outlet branch pipe connected with the normal working condenser are closed; S2、打开加药泵,清洗药液经过主进液管与进液支管进入待清洗凝汽器,然后经过出液支管与主出液管回到水箱中;S2. Turn on the dosing pump, the cleaning liquid enters the condenser to be cleaned through the main liquid inlet pipe and the liquid inlet branch pipe, and then returns to the water tank through the liquid outlet branch pipe and the main liquid outlet pipe; S3、在水箱中补充清洗药液,使清洗药液的PH值范围保持在1.8~2.2之间,对循环清洗药液取样分析,当清洗药液的硬度和浊度值不再变化时,药洗过程结束;S3. Supplement the cleaning liquid in the water tank to keep the PH value of the cleaning liquid between 1.8 and 2.2, and sample and analyze the circulating cleaning liquid. When the hardness and turbidity of the cleaning liquid no longer change, The washing process is over; S4、打开与待清洗凝汽器连接的冷却进液支路与冷却出液支路上的通断阀,关闭与待清洗凝汽器连通的进液支管与出液支管上的阀门,关闭所述进水阀与回水阀,清洗完毕的凝汽器开始正常工作;S4. Open the on-off valves on the cooling liquid inlet branch and the cooling liquid outlet branch connected to the condenser to be cleaned, close the valves on the liquid inlet branch pipe and the liquid outlet branch pipe connected to the condenser to be cleaned, and close the Inlet valve and return valve, the cleaned condenser starts to work normally; 循环步骤S1-S4,对其余的凝汽器单独清洗,直至所有凝汽器清洗完成。Steps S1-S4 are cycled, and the remaining condensers are individually cleaned until all the condensers are cleaned. 10.根据权利要求9所述的凝汽器在线清洗装置的使用方法,其特征在于,在步骤S3中,经过5~8小时的循环药洗,当清洗药液的硬度与浊度值不再变化时,结束药洗,将清洗药液通过碱中和至中性排放;10 . The method for using the condenser online cleaning device according to claim 9 , wherein in step S3 , after 5-8 hours of cyclic chemical cleaning, when the hardness and turbidity of the cleaning liquid are no longer any longer, 10 . When changing, end the medicine washing, and neutralize the cleaning medicine to neutral discharge by alkali; 然后在水箱中加入清水,循环冲洗凝汽器,直至出水无浊物,出水的PH值为中性即为药洗过程结束。Then add clean water to the water tank, rinse the condenser in a cycle, until the effluent is free of turbidity, and the PH value of the effluent is neutral, that is the end of the washing process.
CN202110662647.0A 2021-06-15 2021-06-15 Online cleaning device for steam turbine condenser and using method thereof Pending CN113295020A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101655335A (en) * 2008-08-19 2010-02-24 华北电力科学研究院有限责任公司 Device and method for thermal cleaning of direct air cooling system
JP2013170544A (en) * 2012-02-22 2013-09-02 Mitsubishi Heavy Ind Ltd Power plant and operation method therefor
CN103791767A (en) * 2012-11-01 2014-05-14 西林钢铁集团有限公司 Cleaning method and cleaning device for steam turbine air cooler
CN206794286U (en) * 2017-03-28 2017-12-26 莱芜市泰山热电有限公司 The online dosing cleaning device of steam turbine condenser
CN207533020U (en) * 2017-11-25 2018-06-26 厦门市格绿科技有限公司 A kind of ammonia with cleaning function absorbs module
JP2019143899A (en) * 2018-02-21 2019-08-29 三菱日立パワーシステムズ株式会社 Water supply system cleanup device and method
CN212962877U (en) * 2020-05-07 2021-04-13 上海蓝滨石化设备有限责任公司 Integrated module type efficient condensation cooler
CN216977575U (en) * 2021-06-15 2022-07-15 大冶特殊钢有限公司 Online cleaning device for steam turbine condenser

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101655335A (en) * 2008-08-19 2010-02-24 华北电力科学研究院有限责任公司 Device and method for thermal cleaning of direct air cooling system
JP2013170544A (en) * 2012-02-22 2013-09-02 Mitsubishi Heavy Ind Ltd Power plant and operation method therefor
CN103791767A (en) * 2012-11-01 2014-05-14 西林钢铁集团有限公司 Cleaning method and cleaning device for steam turbine air cooler
CN206794286U (en) * 2017-03-28 2017-12-26 莱芜市泰山热电有限公司 The online dosing cleaning device of steam turbine condenser
CN207533020U (en) * 2017-11-25 2018-06-26 厦门市格绿科技有限公司 A kind of ammonia with cleaning function absorbs module
JP2019143899A (en) * 2018-02-21 2019-08-29 三菱日立パワーシステムズ株式会社 Water supply system cleanup device and method
CN212962877U (en) * 2020-05-07 2021-04-13 上海蓝滨石化设备有限责任公司 Integrated module type efficient condensation cooler
CN216977575U (en) * 2021-06-15 2022-07-15 大冶特殊钢有限公司 Online cleaning device for steam turbine condenser

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