A vortex self-cleaning device for a condenser

Abstract

The utility model relates to vortex self -cleaning device technical field especially for a kind of vortex self -cleaning equipment for condenser, including fixed water distribution tray, the inside of fixed water distribution tray is equipped with multiple water distribution holes, the inner side wall of water distribution hole is fixedly connected with mounting bracket, the inner wall of mounting bracket is rotatably connected with helical component. The device is provided with helical component, in use, fixed water distribution tray is installed at the inlet end of condenser cooling pipe, the rotating shaft and its outer side wall guide vane are driven by driving motor and are continuously rotated in water distribution hole, the cooling water flowing through water distribution hole is guided by rotating guide vane, so that cooling water generates vortex by rotary motion and is passed into cooling pipe, and the centrifugal force and shear force generated by vortex and other forces, so that scale, biological scale etc. in the inner wall of cooling pipe are removed, without removing condenser for cleaning, condenser can realize self-cleaning effect when normal use.

Description

Technical Field

[0001] This utility model relates to the technical field of eddy current self-cleaning devices, specifically to an eddy current self-cleaning device for condensers. Background Technology

[0002] A condenser, also known as a steam turbine condenser, is a cold-end device located at the end of the steam turbine in steam power plants such as thermal power plants and nuclear power plants. Its core function is to condense the low-pressure exhaust steam after it has performed work into water (called condensate), thereby establishing and maintaining an extremely high vacuum at the turbine exhaust port. The condenser continuously circulates cooling water through cooling tubes, causing the steam passing over the tube walls to absorb heat and condense into water. This internal cooling water is constantly recycled, which makes it very easy for scale to form on the inner walls of the cooling tubes. The tendency for scale formation is more pronounced in areas with lower water flow velocity or higher temperatures. For example, at the inlet and outlet of the cooling tubes, where the water flow velocity changes significantly, deposits are easily formed.

[0003] Chinese utility model patent CN211012656U discloses a clean condenser cleaning component for thermal power plants, which includes "a base and a hydraulic rod, the lower end of the hydraulic rod being fixedly connected to the upper surface of the base, a fixed plate being fixedly connected to the upper end face of the hydraulic rod, telescopic rods being fixedly connected at equal intervals on the side wall of the fixed plate, a telescopic hose being fixedly connected inside the telescopic rod, and a baffle being provided on one side of the fixed plate, the baffle being sleeved on the end of the telescopic rod." This device, by setting multiple telescopic hoses on the fixed plate, facilitates the simultaneous flushing of multiple pipes on the condenser, thereby achieving the effect of cleaning the inside of the cooling pipes.

[0004] However, in the process of continuous heat absorption and cooling in existing condensers, the circulating water contains hardness ions such as calcium and magnesium, as well as suspended solids and microorganisms. These substances easily form scale and bio-scale on the inner wall of the cooling pipes. Scale formation leads to reduced heat transfer efficiency and decreased vacuum, affecting the performance of the condenser. The common cleaning method is to remove the cooling pipes from the condenser and flush them with high-pressure water (see the aforementioned utility model patent). However, because the walls of the cooling pipes are thin, flushing with high-pressure water can easily cause wear and deformation of the inner wall of the cooling pipes, thereby affecting the condensation effect of the cooling pipes and making it impractical. Utility Model Content

[0005] The purpose of this invention is to provide a vortex self-cleaning device for condensers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vortex self-cleaning device for condensers, comprising a fixed water distribution plate, wherein the fixed water distribution plate has multiple water distribution holes inside;

[0007] The inner wall of the water distribution hole is fixedly connected to a mounting bracket, and the inner wall of the mounting bracket is rotatably connected to a spiral assembly.

[0008] The spiral assembly includes a rotating shaft and a drive motor. Multiple guide vanes are fixedly connected to the outer wall of the rotating shaft, and one end of the rotating shaft is connected to the output end of the drive motor, which is fixedly mounted on the side wall of the mounting bracket.

[0009] The beneficial effects of this utility model are as follows: This device, by incorporating a spiral assembly, allows the fixed water distribution plate to be installed at the inlet end of the condenser cooling pipe during use. When cooling water flows into the cooling pipe through the water distribution holes inside the water distribution plate, the drive motor drives the rotating shaft and its outer wall guide vanes to rotate continuously within the water distribution holes. The cooling water flowing through the water distribution holes is guided by the rotating guide vanes, causing the cooling water to generate vortices through rotational motion and flow into the cooling pipe. The centrifugal force and shear force generated by the vortex remove scale and biofilm from the inner wall of the cooling pipe. There is no need to disassemble the condenser for cleaning; the condenser can achieve self-cleaning during normal use. The cleaning method, which uses the rotating cooling water to form a gentle vortex, does not damage the inner wall of the cooling pipe and further improves the heat exchange efficiency of the cooling pipe, thereby ensuring the service life of the equipment.

[0010] To further adapt this device to the installation and use of various condensers:

[0011] A further feature is that the number and location of the water distribution holes inside the fixed water distribution plate can be adjusted according to actual needs.

[0012] By adopting the above technical solution, in actual use, the number and arrangement of cooling tubes of different condenser models may not be the same. Therefore, the water distribution plate can be adjusted according to actual use requirements during production, thereby adjusting the number and arrangement of the internal water distribution holes without affecting the actual use effect of the device.

[0013] To achieve self-cleaning of the condenser without affecting normal operation:

[0014] The further configuration is as follows: multiple guide vanes are evenly spaced in a circumferential array on the outer wall of the rotating shaft, and each guide vane is spirally wound around it.

[0015] By adopting the above technical solution, the rotating shaft drives the guide vanes on the outer wall to rotate together. The guide vanes, which are spirally wound, guide the flowing cooling water to form a rotating vortex. The centrifugal force and shear force generated by the vortex remove scale and bio-scale from the inner wall of the cooling pipe, thereby achieving the self-cleaning effect of the condenser.

[0016] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a front view schematic diagram of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the water distribution plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the spiral assembly of this utility model.

[0021] In the diagram: 1. Fixed water distribution plate; 2. Water distribution hole; 3. Mounting bracket; 4. Spiral assembly; 41. Rotating shaft; 42. Guide vane; 43. Drive motor. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0023] Please see Figures 1 to 4 A vortex self-cleaning device for condensers includes a fixed water distribution plate 1, and the fixed water distribution plate 1 has multiple water distribution holes 2 inside;

[0024] The inner wall of the water distribution hole 2 is fixedly connected to the mounting bracket 3, and the inner wall of the mounting bracket 3 is rotatably connected to the spiral assembly 4.

[0025] The spiral assembly 4 includes a rotating shaft 41 and a drive motor 43. Multiple guide vanes 42 are fixedly connected to the outer wall of the rotating shaft 41. One end of the rotating shaft 41 is connected to the output end of the drive motor 43, which is fixedly installed on the side wall of the mounting bracket 3.

[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the number and location of the water distribution holes 2 inside the fixed water distribution plate 1 can be adjusted according to actual needs.

[0027] In this embodiment, as Figure 4 As shown, multiple guide vanes 42 are evenly spaced in a circumferential array on the outer wall of the rotating shaft 41, and each guide vane 42 is spirally wound around.

[0028] The computer software involved in the hardware carriers such as the drive motor in the technical solution is software technology known to those skilled in the art. It is merely applied to the aforementioned hardware carriers. In other words, the computer software portion of the technical solution is an essential technical feature for solving the aforementioned technical problem, constituting a necessary technical feature for the technical problem solved by this application, but it is not a differentiating technical feature or a point of technical improvement. The applicant has not made any technical improvements to the computer software portion involved in the aforementioned related hardware carriers, nor is it a key technical point of the invention.

[0029] Therefore, the "drive motor" and the like mentioned in this application are physical functional modules that combine computer software programs or protocols in the prior art with the hardware carrier of this application. The computer software programs involved in these physical functional modules are all technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction relationship between the various physical functional modules, that is, the improvement of the overall structure of the automatic dipping machine of this application, so as to solve the corresponding technical problems to be solved by this application.

[0030] The working process of this vortex self-cleaning device for condensers is as follows:

[0031] When in use, first install this device at the inlet end of the condenser cooling pipe by fixing the water distribution plate 1. The cooling circulating water of the condenser enters the cooling pipe through the water distribution hole 2 inside the fixing water distribution plate 1.

[0032] During normal operation, the condenser is driven by the drive motor 43 to rotate the rotating shaft 41 and its outer wall guide vanes 42 together in the water distribution hole 2. The cooling water flowing through the water distribution hole 2 is guided by the rotating guide vanes 42, so that the cooling water generates vortices through the rotational motion and enters the cooling pipe. Through the centrifugal force and shear force generated by the vortex, the scale and bio-scale on the inner wall of the cooling pipe are removed, achieving the self-cleaning effect of the condenser. The cleaning method of forming a gentle vortex by rotating cooling water does not damage the inner wall of the cooling pipe, which greatly improves the service life of the equipment.

[0033] The rotating shaft 41 is installed in each water distribution hole 2 via the mounting bracket 3, allowing for cleaning of each cooling pipe.

[0034] The drive motor 43 can be a waterproof motor with the known model PTM-0450-IP68, which is a well-known existing technology. It can be the above model, but is not limited to it. It is a mature technology in this field and has been fully disclosed. Therefore, it will not be repeated in the specification.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises 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.

[0037] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A vortex self-cleaning device for a condenser comprising a fixed water trap (1), characterised in that: The fixed water distribution plate (1) has multiple water distribution holes (2) inside; The inner wall of the water distribution hole (2) is fixedly connected to the mounting bracket (3), and the inner wall of the mounting bracket (3) is rotatably connected to the spiral assembly (4); The spiral assembly (4) includes a rotating shaft (41) and a drive motor (43). Multiple guide vanes (42) are fixedly connected to the outer wall of the rotating shaft (41). One end of the rotating shaft (41) is connected to the output end of the drive motor (43) which is fixedly installed on the side wall of the mounting bracket (3).

2. A vortex self-cleaning device for a condenser as claimed in claim 1, characterised in that: The number and location of the water distribution holes (2) inside the fixed water distribution plate (1) can be adjusted according to actual needs.

3. A vortex self-cleaning device for a condenser as claimed in claim 1, characterised in that: Multiple guide vanes (42) are evenly spaced in a circumferential array on the outer wall of the rotating shaft (41), and each guide vane (42) is spirally wound.

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