Device for automatically cleaning heat exchange tube bundle of condenser

Abstract

The utility model relates to a device for automatically cleaning a heat exchange tube bundle of a condenser. A chemical outlet of the chemical adding box is connected with a three-way circulating distributor through a cleaning pipeline and is provided with a cleaning water pump, and the other two circulating ports of the distributor are communicated with water inlets in the left side and the right side of the condenser through a first circulating water inlet valve and a second circulating water inlet valve respectively; a first circulating water outlet valve and a second circulating water outlet valve are installed at water outlets in the left side and the right side of the condenser correspondingly and communicate with a water return port of the dosing box through water return pipelines correspondingly. Online chemical cleaning of the condenser heat exchange tube bundle in the running state of the steam turbine is achieved, steam emptying waste and power generation loss caused by equipment shutdown are avoided, and meanwhile the chemical cleaning decontamination capacity is high, and the cleaning effect is good.

Description

Technical Field

[0001] The present application relates to the technical field of condenser heat exchange tube bundle cleaning, and in particular to a device for automatically cleaning a condenser heat exchange tube bundle. Background Art

[0002] In the related art, the condenser is designed with a rubber ball cleaning device. The rubber ball cleaning method satisfies the requirement of non-stop cleaning. However, the rubber ball recovery rate of the rubber ball cleaning method is not high, and the cleaning effect is poor. Rubber balls often clog the heat exchange tube bundle, leading to more serious accidents. Other cleaning methods require shutdown for cleaning, and equipment shutdown will result in wasteful steam exhaust and loss of power generation. Utility Model Content

[0003] In order to solve or partially solve the problems existing in the related art, the present application provides a device for automatic cleaning of the condenser heat exchange tube bundle, which can reduce labor costs and avoid steam emptying waste and power generation loss caused by equipment shutdown.

[0004] The present application provides a device for automatic cleaning of a condenser heat exchange tube bundle, comprising a dosing box 1, a cleaning water pump 2, a distributor 3, a cleaning pipeline 4, a first circulating water inlet valve 5, a second circulating water inlet valve 6, a first circulating water outlet valve 7, a second circulating water outlet valve 8, and a return water pipeline 10.

[0005] The medicine outlet of the dosing box 1 is connected to a three-way circulation distributor 3 through a cleaning pipe 4, and is equipped with a cleaning water pump 2. The other two circulation ports of the distributor 3 are connected to the water inlets on the left and right sides of the condenser 9 through the first circulating water inlet valve 5 and the second circulating water inlet valve 6 respectively. The water outlets on the left and right sides of the condenser 9 are respectively equipped with the first circulating water outlet valve 7 and the second circulating water outlet valve 8. The first circulating water outlet valve 7 and the second circulating water outlet valve 8 are connected to the return water port of the dosing box 1 through the return water pipe 10.

[0006] Optionally, in some solutions, a sewage pipe 11 with a sewage valve is provided at the bottom of the dosing box 1, and an overflow pipe 12 with an overflow valve is provided at the upper side.

[0007] Optionally, in some solutions, the water inlet pipes on the left and right sides of the condenser 9 are both connected to condenser drain pipes, and a condenser drain valve 13 is installed on the condenser drain pipes.

[0008] The technical solution provided by this application may have the following beneficial effects:

[0009] This application realizes the online chemical cleaning of the condenser heat exchange tube bundle when the turbine is in operation, avoiding the waste of steam emptying and power generation loss caused by equipment shutdown. At the same time, the chemical cleaning has strong decontamination ability and good cleaning effect. The device is installed in the condenser inlet and outlet water system, and is simple to operate. Each operation only requires the mixing of reagents, and it automatically circulates and cleans after startup, which greatly reduces labor costs compared with other chemical cleaning devices.

[0010] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0012] Figure 1 It is a structural schematic diagram of a device for automatic cleaning of a condenser heat exchange tube bundle shown in an embodiment of the present application.

[0013] Reference numerals:

[0014] 1-dosing tank, 2-cleaning water pump, 3-distributor, 4-cleaning pipe, 5-first circulating water inlet valve, 6-second circulating water inlet valve, 7-first circulating water outlet valve, 8-second circulating water outlet valve, 9-condenser, 10-return pipe, 11-drain pipe, 12-overflow pipe, 13-condenser drain valve. DETAILED DESCRIPTION

[0015] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0016] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0017] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0018] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0019] In response to the above problems, an embodiment of the present application provides a device for automatically cleaning a condenser heat exchange tube bundle, which can reduce labor costs and avoid steam exhaust waste and power generation loss caused by equipment shutdown.

[0020] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0021] See also Figure 1 The device for automatic cleaning of the condenser heat exchange tube bundle includes a dosing box 1, a cleaning water pump 2, a distributor 3, a cleaning pipeline 4, a first circulating water inlet valve 5, a second circulating water inlet valve 6, a first circulating water outlet valve 7, a second circulating water outlet valve 8, and a return water pipeline 10.

[0022] The medicine outlet of the dosing box 1 is connected to a three-way circulation distributor 3 through a cleaning pipe 4, and is equipped with a cleaning water pump 2. The other two circulation ports of the distributor 3 are connected to the water inlets on the left and right sides of the condenser 9 through the first circulating water inlet valve 5 and the second circulating water inlet valve 6 respectively. The water outlets on the left and right sides of the condenser 9 are respectively equipped with the first circulating water outlet valve 7 and the second circulating water outlet valve 8. The first circulating water outlet valve 7 and the second circulating water outlet valve 8 are respectively connected to the return water outlet of the dosing box 1 through the return water pipe 10; the water inlet pipes on the left and right sides of the condenser 9 are connected to the condenser drain pipe, and the condenser drain valve 13 is installed on the condenser drain pipe.

[0023] During operation, the configured agent is loaded into the dosing box 1, and the cleaning agent is sent to the condenser heat exchange tube bundle for flushing through the cleaning water pump 2 and the distributor 3, and then circulated through the return pipe 10 to achieve automatic flushing. The sewage after flushing can also be discharged through the condenser drain valve 13. When the turbine is shut down, the first circulating water inlet valve 5, the second circulating water inlet valve 6, the first circulating water outlet valve 7, and the second circulating water outlet valve 8 can be opened at the same time to flush the condenser heat exchange tube bundle. When the turbine is running, the circulating water inlet valve and the circulating water outlet valve on one side are closed, and the circulating water inlet valve and the circulating water outlet valve on the other side are closed to flush the condenser heat exchange tube bundle separately. The condenser single-side heat exchange tube bundle is cleaned by switching the distributor 3 cleaning channel. The single-side condenser works, and the turbine can be chemically cleaned without stopping, avoiding steam emptying waste and power generation loss caused by equipment shutdown.

[0024] In some embodiments, a sewage pipe 11 with a sewage valve is provided at the bottom of the dosing box 1, and an overflow pipe 12 with an overflow valve is provided at the upper side.

[0025] During operation, the overflow valve is opened. When there is too much cleaning agent, in order to avoid affecting the normal operation of the device, the excess agent is discharged from the overflow pipe 12. After cleaning is completed, the drain valve is opened and the sewage is discharged through the sewage pipe 11.

[0026] Finally, it should be noted that, in this document, relationships such as first and second, etc., are used solely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms include, comprise, or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0028] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A device for automatic cleaning of condenser heat exchange tube bundles, characterized by: The device for automatically cleaning a condenser heat exchange tube bundle comprises a dosing box (1), a cleaning water pump (2), a distributor (3), a cleaning pipeline (4), a first circulating water inlet valve (5), a second circulating water inlet valve (6), a first circulating water outlet valve (7), a second circulating water outlet valve (8), and a return water pipeline (10); The medicine outlet of the medicine dosing box (1) is connected to a three-way circulation distributor (3) through a cleaning pipe (4), and is equipped with a cleaning water pump (2). The other two circulation ports of the distributor (3) are connected to the water inlets on the left and right sides of the condenser (9) through a first circulating water inlet valve (5) and a second circulating water inlet valve (6), respectively. The water outlets on the left and right sides of the condenser (9) are respectively equipped with a first circulating water outlet valve (7) and a second circulating water outlet valve (8). The first circulating water outlet valve (7) and the second circulating water outlet valve (8) are connected to the return water outlet of the medicine dosing box (1) through a return water pipe (10).

2. The device for automatic cleaning of condenser heat exchange tube bundles according to claim 1, characterized in that: The bottom of the medicine adding box (1) is provided with a sewage discharge pipe (11) with a sewage discharge valve, and the upper part of the side is provided with an overflow pipe (12) with an overflow valve.

3. The device for automatic cleaning of condenser heat exchange tube bundles according to claim 1 or 2, characterized in that: The water inlet pipes on the left and right sides of the condenser (9) are both connected with condenser drain pipes, and the condenser drain pipes are equipped with condenser drain valves (13).

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