Easily-cleaned steam turbine condenser tube bundle of thermal power plant

Abstract

The utility model provides an easy-to-clean steam turbine condenser tube bundle of a thermal power plant. The easy-to-clean steam turbine condenser tube bundle comprises a tube body, the moving ring is arranged on the inner side face of the pipe body, shoveling rings are fixedly installed at the two ends of the moving ring, and a connecting rod is fixedly installed on the inner side face of the moving ring; and the limiting rings are fixedly connected to the two ends of the pipe body respectively, penetrating openings are formed in the limiting rings, the diameter of the penetrating openings is smaller than that of the pipe body, the outer side faces of the moving ring and the shoveling ring are attached to the inner wall of the pipe body, and one end of the shoveling ring is inclined. According to the thermal power plant steam turbine condenser pipe bundle easy to clean, through mutual cooperation of the pipe body, the limiting ring, the moving ring, the connecting rod, the shoveling ring and other structures, when the pipe bundle is used, the shoveling ring can be matched with the flushing pipe to flush the interior of the pipe body, and the pipe bundle is convenient to clean. In this way, the efficiency of flushing the interior of the pipe body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of condensers, in particular to an easy-to-clean condenser tube bundle of a steam turbine in a thermal power plant. Background Art

[0002] A condenser is a heat exchanger that condenses the exhaust steam of a steam turbine into water, also known as a rehydrator. Condensers are mainly used in steam turbine power plants and are divided into water-cooled condensers and air-cooled condensers. A water-cooled surface condenser is mainly composed of a shell, a tube bundle, a hot well, a water chamber, and other parts. The exhaust steam of the steam turbine enters the shell through the throat, condenses into water on the cooling tube bundle and collects in the hot well, which is pumped out by a condensate pump. Cooling water (also known as circulating water) enters the cooling tube bundle from the inlet water chamber and is discharged from the outlet water chamber. In order to ensure that a high vacuum and good heat transfer effect are maintained in the condenser during steam condensation, an exhaust device is also provided, which continuously extracts the air and other non-condensable gases leaking into the condenser. In an air-cooled surface condenser, air passes horizontally on the outside of the tube bundle or is naturally ventilated with the help of a fan, and steam flows in the tube bundle and is condensed into water. In order to improve heat transfer outside the tube, this type of condenser uses external finned tubes, and its back pressure is much higher than that of a water condenser.

[0003] After the tube bundle of the condenser has been used for a long time, a lot of impurities will accumulate inside the tube bundle, which requires the user to clean it regularly. When cleaning the tube bundle, most of them use chemical cleaning and water flushing. When using water flushing, when encountering more stubborn impurities, the user needs to repeatedly flush the location through the flushing pipe, which reduces the flushing efficiency.

[0004] Therefore, it is necessary to provide a steam turbine condenser tube bundle for a thermal power plant that is easy to clean to solve the above technical problems. Utility Model Content

[0005] The utility model provides a steam turbine condenser tube bundle of a thermal power plant which is easy to clean, and solves the problem that stubborn impurities inside the tube bundle need to be repeatedly flushed, which reduces the flushing efficiency.

[0006] In order to solve the above technical problems, the utility model provides an easy-to-clean steam turbine condenser tube bundle of a thermal power plant, comprising:

[0007] tube body;

[0008] A moving ring, the moving ring is arranged on the inner side of the tube body, both ends of the moving ring are fixedly installed with a scraping ring, and the inner side of the moving ring is fixedly installed with a connecting rod;

[0009] A limiting ring is fixedly connected to the two ends of the tube body respectively, and a through opening is opened inside the limiting ring.

[0010] Preferably, the diameter of the through opening is smaller than the diameter of the tube body.

[0011] Preferably, the outer side surfaces of the moving ring and the scraping ring are both in contact with the inner wall of the tube body.

[0012] Preferably, one end of the scraping circle is inclined.

[0013] Preferably, the inner side surface of the through-hole is threadedly connected with an outer thread ring, and a mounting ring is fixedly mounted on one end of the inner side surface of the outer thread ring.

[0014] Preferably, a filter screen is fixedly mounted on the inner side surface of the mounting ring.

[0015] Preferably, push plates are fixedly mounted on both sides of the external thread ring.

[0016] Compared with the related art, the utility model provides an easy-to-clean thermal power plant steam turbine condenser tube bundle, which has the following beneficial effects:

[0017] The utility model provides a condenser tube bundle of a steam turbine in a thermal power plant which is easy to clean. The tube body, a limiting ring, a moving ring, a connecting rod and a scraping ring are coordinated with each other. When in use, the scraping ring can cooperate with the flushing pipe to flush the inside of the tube body, thereby increasing the efficiency of flushing the inside of the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a first embodiment of a steam turbine condenser tube bundle for a thermal power plant that is easy to clean provided by the utility model;

[0019] Figure 2 for Figure 1 The schematic diagram of the cross-sectional structure of the tube body shown;

[0020] Figure 3 A schematic structural diagram of a second embodiment of a steam turbine condenser tube bundle for a thermal power plant that is easy to clean provided by the utility model;

[0021] Figure 4 for Figure 3 An enlarged schematic diagram of part A is shown.

[0022] Numbers in the figure: 1, tube body, 11, limiting ring, 12, through-hole, 2, mounting plate, 3, moving ring, 31, connecting rod, 32, scraping ring, 4, external thread ring, 41, mounting ring, 42, filter screen, 43, rotating plate. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] First embodiment

[0025] Please refer to Figure 1 , Figure 2 ,in, Figure 1 A schematic structural diagram of a first embodiment of a steam turbine condenser tube bundle for a thermal power plant that is easy to clean provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the cross-sectional structure of the tube body is shown. A tube bundle of a steam turbine condenser in a thermal power plant which is easy to clean comprises: a tube body 1;

[0026] A moving ring 3, the moving ring 3 is arranged on the inner side of the tube body 1, and scraping rings 32 are fixedly installed at both ends of the moving ring 3, and a connecting rod 31 is fixedly installed on the inner side of the moving ring 3;

[0027] The limiting ring 11 is fixedly connected to the two ends of the tube body 1 , and a through opening 12 is formed inside the limiting ring 11 .

[0028] The diameter of the through opening 12 is smaller than the diameter of the tube body 1 .

[0029] The outer side surfaces of the moving ring 3 and the scraping ring 32 are both in contact with the inner wall of the tube body 1 .

[0030] One end of the scraping circle 32 is inclined;

[0031] Since one end of the scraping ring 32 is inclined, it is more convenient to scrape the inner side of the tube body 1 when in use;

[0032] When using it, the user can use a flushing tube made of metal material, so that when using it, one end of the flushing tube can push the connecting rod 31, so that the scraping circle 32 can have an inclined end to scrape and clean the impurities;

[0033] By setting the limiting rings 11 at both ends of the tube body 1, the moving ring 3 and the scraping ring 32 can be limited when in use, so as to prevent the moving ring 3 and the scraping ring 32 from being pushed out of the inner side of the tube body 1;

[0034] By installing the scraping rings 32 at both ends of the moving ring 3, when in use, no matter which end of the tube body 1 is cleaned from, the scraping ring 32 can scrape away the impurities inside the tube body 1.

[0035] The utility model provides an easy-to-clean thermal power plant steam turbine condenser tube bundle whose working principle is as follows:

[0036] During use, when it is necessary to clean the inside of the tube body 1, the user can insert the flushing tube into the inside of the tube body 1, and make one end of the flushing tube 1 rest on the connecting rod 31. Then the user pushes the flushing tube to make the flushing tube push the connecting rod 31 to move, so that the connecting rod 31 drives the moving circle 3 to move, and then the moving circle 3 drives the scraping circle 32 to move, so as to scrape away the impurities on the inner wall of the tube body 1, and at the same time, the end face of the flushing tube sprays high-pressure water to clean the impurities inside the tube body 1.

[0037] Compared with the related art, the utility model provides an easy-to-clean thermal power plant steam turbine condenser tube bundle, which has the following beneficial effects:

[0038] By cooperating with each other through structures such as the tube body 1, the limiting ring 11, the moving ring 3, the connecting rod 31 and the scraping ring 32, when in use, the scraping ring 32 can cooperate with the flushing tube to flush the inside of the tube body 1, thereby increasing the efficiency of flushing the inside of the tube body 1.

[0039] Second embodiment

[0040] Please refer to Figure 3 and Figure 4 Based on the easy-to-clean thermal power plant steam turbine condenser tube bundle provided by the first embodiment of the present application, the second embodiment of the present application proposes another easy-to-clean thermal power plant steam turbine condenser tube bundle. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0041] Specifically, the second embodiment of the present application provides an easy-to-clean steam turbine condenser tube bundle for a thermal power plant, and is different in that, in an easy-to-clean steam turbine condenser tube bundle for a thermal power plant, the inner side surface of the through-hole 12 is threadedly connected with an external thread ring 4, and one end of the inner side surface of the external thread ring 4 is fixedly installed with a mounting ring 41.

[0042] A filter screen 42 is fixedly mounted on the inner side of the mounting ring 41 .

[0043] Pushing plates 43 are fixedly mounted on both sides of the external thread ring 4 .

[0044] By installing rotating plates 43 on both sides of the external thread ring 4, when disassembling the external thread ring 4, the user can directly rotate the rotating plate 43, so that the rotating plate 43 drives the external thread ring 4 to rotate. This makes it convenient for the user to disassemble the external thread ring 4 when the filter screen 42 needs to be replaced later.

[0045] The utility model provides an easy-to-clean thermal power plant steam turbine condenser tube bundle whose working principle is as follows:

[0046] When in use, the user rotates the external thread ring 4 so that the external thread ring 4 is threadedly connected to the inner side of the limiting ring 11, thereby installing the external thread ring 4, and at the same time, the mounting ring 41 is installed on the inner side of the external thread ring 4, and the filter 42 is installed on the inner side of the mounting ring 41, so that the filter 42 can be installed. In this way, when there are impurities in the subsequent use, they will be filtered by the filter 42 to prevent the impurities from entering the interior of the tube body 1. Later, when it is used later, it is convenient for the user to clean and maintain the tube body 1.

[0047] Compared with the related art, the utility model provides an easy-to-clean thermal power plant steam turbine condenser tube bundle, which has the following beneficial effects:

[0048] Through the cooperation of structures such as the external thread ring 4, the installation ring 41, the filter 42 and the rotating plate 43, when in use, the external thread ring 4 is threadedly connected to the inner side of the through-hole 12, so that the external thread ring 4 can be installed and the filter 42 can be installed at the same time. When used later, the impurities can be blocked on the outer side of the tube body 1 through the filtering of the filter 42 to prevent the impurities from entering the interior of the tube body 1, thereby facilitating the user to clean the interior of the tube body 1 later.

[0049] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An easy-to-clean steam turbine condenser tube bundle for a thermal power plant, characterized in that: include: tube body; A moving ring, the moving ring is arranged on the inner side of the tube body, both ends of the moving ring are fixedly installed with a scraping ring, and the inner side of the moving ring is fixedly installed with a connecting rod; A limiting ring is fixedly connected to the two ends of the tube body respectively, and a through opening is opened inside the limiting ring.

2. The easy-to-clean steam turbine condenser tube bundle of a thermal power plant according to claim 1, characterized in that: The diameter of the through opening is smaller than the diameter of the tube body.

3. The easy-to-clean steam turbine condenser tube bundle of a thermal power plant according to claim 2, characterized in that: The outer side surfaces of the moving ring and the scraping ring are both in contact with the inner wall of the tube body.

4. The easy-to-clean steam turbine condenser tube bundle of a thermal power plant according to claim 3, characterized in that: One end of the scraping circle is inclined.

5. The easy-to-clean steam turbine condenser tube bundle of a thermal power plant according to claim 4, characterized in that: The inner side surface of the through-hole is threadedly connected with an outer thread ring, and one end of the inner side surface of the outer thread ring is fixedly installed with a mounting ring.

6. The easy-to-clean steam turbine condenser tube bundle of a thermal power plant according to claim 5, characterized in that: A filter screen is fixedly mounted on the inner side surface of the mounting ring.

7. The easy-to-clean condenser tube bundle of a thermal power plant steam turbine according to claim 6, characterized in that: Push plates are fixedly mounted on both sides of the external thread ring.

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