Generator purging, filtering and cleaning device

Abstract

The utility model relates to the field of large steam turbine generator cleaning, aims to solve the problems of poor internal operation environment, more impurities and high operation risk of a generator in the prior art, and provides a generator purging, filtering and cleaning device which comprises a generator body. An air inlet is formed in one side of the generator body, a cooler is arranged in the generator body, the cooler is fixedly connected into the generator body, and the cooler is close to the air inlet; a purging filter screen is arranged on the side, close to the air inlet, of the cooler and detachably and fixedly connected to the side, close to the air inlet, of the cooler. The beneficial effects of the utility model are that the internal operation environment of the generator is neat and impurity-free, and the operation risk of the generator is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cleaning of large steam turbine generators, in particular to a generator purging, filtering and cleaning device. Background Art

[0002] Newly produced or overhauled generators are directly debugged or operated without impurity purging, which brings risks to the operation of the generator; during the assembly or repair process of newly produced or overhauled generators, external impurities or residual impurities inside the machine are easily introduced, especially after the generator accident condition, ferromagnetic materials are inevitably left inside the generator; after the generator is running, the impurities circulate between the generator body and the cooler with the cooling gas under the action of the fan pressure head.

[0003] If the impurities are ferromagnetic substances, they may cause short circuits between turns; if the impurities are sharp and hard objects, they may cause scratches on the stator and rotor or insulation damage; if tiny impurities accumulate in the conductive parts for a long time, they may cause creepage problems; if the impurities block the air path, they may cause local overheating of the generator. Utility Model Content

[0004] The utility model aims to provide a generator purging, filtering and cleaning device to solve the problems of poor internal operating environment of the generator, much impurities and high operating risk of the generator in the prior art.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a generator purge filtering and cleaning device, which comprises a generator body;

[0007] One side of the generator body is provided with an air inlet, and a cooler is provided inside the generator body. The cooler is fixedly connected inside the generator body, and the cooler is close to the air inlet;

[0008] A purge filter is provided on one side of the cooler close to the air inlet, and the purge filter is detachably fixedly connected to the side of the cooler close to the air inlet.

[0009] The generator purging, filtering and cleaning device disclosed in this embodiment has the above-mentioned purging filter net added, so that the inside of the above-mentioned generator body is purged before operation, thereby avoiding impurities in the inside of the above-mentioned generator body. The generator purging, filtering and cleaning device has the beneficial effects of making the internal operating environment of the generator clean and free of impurities and reducing the operating risks of the generator.

[0010] Optionally: the area of ​​the purge filter covers the area of ​​one side of the cooler close to the air inlet.

[0011] By configuring in this way, the gas entering through the air inlet can be fully filtered by the purge filter, and the gas entering the generator body can be filtered to the greatest extent, so as to improve the cleanliness of the internal operating environment of the generator body and reduce the operating safety risks of the generator body.

[0012] Optionally: the cooler has a frame, and a plurality of evenly distributed cooling tubes are arranged in the frame.

[0013] With such arrangement, the frame provides support for the cooler, which is beneficial for the connection between the cooler and the generator body. The cooling pipes can cool the generator body. The gas passes through the cooler to form cold air, which can cool the generator body, thereby taking away the heat of the generator body and reducing the safety risk of generator operation.

[0014] Optionally: the purge filter has a base, and the base is detachably connected to the frame of the cooler.

[0015] In this way, the base is arranged to facilitate installation and removal of the purge filter, and is conducive to cleaning the purge filter.

[0016] Optionally: an inner filter is provided on one side of the base close to the air inlet, and the inner filter is fixedly connected to one side of the base close to the air inlet.

[0017] With such arrangement, the inner filter can further filter the gas blown from the air inlet.

[0018] Optionally: an outer filter is provided on a side of the inner filter close to the air inlet, and the outer filter is fixedly connected to a side of the inner filter close to the air inlet.

[0019] With such arrangement, the outer filter is located at the outermost side, thus achieving a preliminary filtering effect.

[0020] Optionally, the pore density of the outer filter screen is smaller than the pore density of the inner filter screen.

[0021] With such arrangement, the outer filter is used to filter larger impurities, and the inner filter is used to filter smaller impurities, so as to enhance the filtering effect.

[0022] Optionally, two ends of the base are provided with a first ear plate and a second ear plate respectively, and the first ear plate and the second ear plate are respectively detachably connected to the frame.

[0023] With such arrangement, the first ear plate and the second ear plate can enable the base to be conveniently connected to the frame of the cooler, which is beneficial to the installation and removal of the purge filter.

[0024] Optionally: a first bolt and a second bolt are respectively provided between the first ear plate and the second ear plate and the frame, the first ear plate is fixedly connected to one end of the frame by the first bolt, and the second ear plate is fixedly connected to the other end of the frame by the second bolt.

[0025] With such arrangement, the first bolt and the second bolt make the connection between the first ear plate and the second ear plate and the frame simpler, and the installation and disassembly are also more convenient.

[0026] In summary of the above description, the generator purging, filtering and cleaning device disclosed in the utility model has the beneficial effects of making the internal operating environment of the generator clean and free of impurities and reducing the operating risk of the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a generator purge, filter and cleaning device in an embodiment of the utility model.

[0028] Icons: 1-generator body, 2-air inlet, 3-cooler, 4-purge filter, 5-frame, 6-cooling pipe, 7-base, 8-inner filter, 9-outer filter, 10-first ear plate, 11-second ear plate, 12-first bolt, 13-second bolt. DETAILED DESCRIPTION

[0029] Example

[0030] See also Figure 1 , this embodiment provides a generator purging, filtering and cleaning device, including a generator body 1;

[0031] An air inlet 2 is provided on one side of the generator body 1. A cooler 3 is provided inside the generator body 1. The cooler 3 is fixedly connected inside the generator body 1 and is close to the air inlet 2.

[0032] A purge filter 4 is provided on one side of the cooler 3 close to the air inlet 2 , and the purge filter 4 is detachably fixedly connected to the one side of the cooler 3 close to the air inlet 2 .

[0033] The generator purging, filtering and cleaning device disclosed in this embodiment has a purging filter 4, so that the inside of the generator body 1 is purged before operation, thereby avoiding impurities in the inside of the generator body 1. The generator purging, filtering and cleaning device has the beneficial effects of keeping the internal operating environment of the generator clean and free of impurities and reducing the operating risks of the generator.

[0034] See also Figure 1 The area of ​​the purge filter 4 covers the area of ​​the cooler 3 on one side close to the air inlet 2. In this way, the gas entering the air inlet 2 can be fully filtered by the purge filter 4, and the gas entering the generator body 1 can be filtered to the greatest extent, so as to improve the cleanliness of the internal operating environment of the generator body 1 and reduce the operating safety risk of the generator body 1.

[0035] The cooler 3 has a frame 5, and a number of evenly distributed cooling pipes 6 are arranged inside the frame 5. The frame 5 provides support for the cooler 3, which is conducive to the connection between the cooler 3 and the generator body 1. The several cooling pipes 6 can cool the generator body 1. The gas passes through the cooler 3 to form cold air. The cold air can cool the generator body 1, thereby taking away the heat of the generator body 1 and reducing the safety risk of the generator operation.

[0036] See also Figure 1 The purge filter 4 has a base 7, which is detachably connected to the frame 5 of the cooler 3. The arrangement of the base 7 facilitates the installation and removal of the purge filter 4 and is conducive to cleaning the purge filter 4.

[0037] An inner filter screen 8 is provided on one side of the base 7 close to the air inlet 2 . The inner filter screen 8 is fixedly connected to one side of the base 7 close to the air inlet 2 . The inner filter screen 8 can further filter the gas blown from the air inlet 2 .

[0038] An outer filter 9 is provided on the side of the inner filter 8 close to the air inlet 2. The outer filter 9 is fixedly connected to the side of the inner filter 8 close to the air inlet 2. The outer filter 9 is located at the outermost side and has a preliminary filtering effect.

[0039] See also Figure 1 The pore density of the outer filter screen 9 is smaller than that of the inner filter screen 8. The outer filter screen is used to filter larger impurities, and the inner filter screen is used to filter smaller impurities, so as to enhance the filtering effect.

[0040] The two ends of the base 7 are respectively provided with a first ear plate 10 and a second ear plate 11, which are respectively detachably connected to the frame 5. The first ear plate 10 and the second ear plate 11 enable the base 7 to be conveniently connected to the frame 5 of the cooler 3, which is beneficial to the installation and removal of the purge filter 4.

[0041] A first bolt 12 and a second bolt 13 are respectively provided between the first ear plate 10 and the second ear plate 11 and the frame 5. The first ear plate 10 is fixedly connected to one end of the frame 5 by the first bolt 12, and the second ear plate 11 is fixedly connected to the other end of the frame 5 by the second bolt 13. The first bolt 12 and the second bolt 13 make the connection between the first ear plate 10 and the second ear plate 11 and the frame 5 simpler, and the installation and disassembly are also more convenient.

[0042] See also Figure 1 During the purging process, the impurities inside the generator body 1 circulate between the generator body 1 and the cooler 3 along with the cooling system gas of the cooler 3. When the gas passes through the purging filter 4, the purging filter 4 absorbs the impurities, so that the impurities inside the generator body 1 are absorbed on the purging filter 4. After the purging is completed, the cooler 3 is pulled out and the purging filter 4 is removed. Finally, the normal installation sequence of the generator body 1 is restored, thereby completing the purging procedure.

[0043] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A generator purge filtering and cleaning device, characterized in that: including a generator body; One side of the generator body is provided with an air inlet, and a cooler is provided inside the generator body. The cooler is fixedly connected inside the generator body, and the cooler is close to the air inlet; A purge filter is provided on one side of the cooler close to the air inlet, and the purge filter is detachably fixedly connected to the side of the cooler close to the air inlet.

2. A generator purge filtering and cleaning device according to claim 1, characterized in that: The area of ​​the purge filter covers the area of ​​one side of the cooler close to the air inlet.

3. A generator purge filtering and cleaning device according to claim 1, characterized in that: The cooler has a frame, and a plurality of evenly distributed cooling pipes are arranged in the frame.

4. A generator purge filtering and cleaning device according to claim 3, characterized in that: The purge filter has a base, and the base is detachably connected to the frame of the cooler.

5. A generator purge filtering and cleaning device according to claim 4, characterized in that: An inner filter screen is provided on one side of the base close to the air inlet, and the inner filter screen is fixedly connected to one side of the base close to the air inlet.

6. A generator purge filtering and cleaning device according to claim 5, characterized in that: An outer filter is provided on a side of the inner filter close to the air inlet, and the outer filter is fixedly connected to a side of the inner filter close to the air inlet.

7. A generator purge filtering and cleaning device according to claim 6, characterized in that: The pore density of the outer filter screen is smaller than the pore density of the inner filter screen.

8. A generator purge filtering and cleaning device according to claim 4, characterized in that: The two ends of the base are respectively provided with a first ear plate and a second ear plate, and the first ear plate and the second ear plate are respectively detachably connected to the frame.

9. A generator purge filtering and cleaning device according to claim 8, characterized in that: A first bolt and a second bolt are respectively provided between the first ear plate and the second ear plate and the frame. The first ear plate is fixedly connected to one end of the frame by the first bolt, and the second ear plate is fixedly connected to the other end of the frame by the second bolt.

Images