Back pressure type steam turbine convenient to clean

Abstract

The utility model provides a back pressure steam turbine convenient to clean, and belongs to the technical field of steam turbines. The back pressure steam turbine convenient to clean comprises a filtering assembly and a cleaning assembly, the filtering assembly comprises a steam turbine body, an air inlet pipe, a filtering box and a filtering net, the air inlet pipe is arranged between the steam turbine body and the filtering box in a communicating mode, and the cleaning assembly comprises a rotating shaft, a rotating rod, a cleaning brush, a baffle and a clamping piece. The steam turbine comprises a steam turbine body, an air inlet pipe, a filter box, a filter screen, a rotating shaft, a rotating rod, a cleaning brush, a baffle and a clamping piece, the rotating rod rotationally penetrates through the filter screen, the rotating rod rotationally penetrates through the filter box and is in transmission connection with the rotating shaft, and a discharging opening is formed in the bottom of the filter box. The steam turbine body, the air inlet pipe, the filter box, the filter screen, the rotating shaft, the rotating rod, the cleaning brush, the baffle and the clamping piece are arranged; and meanwhile, the clamping piece is loosened to be clamped with the baffle, and the baffle is taken down, so that the cleaned dust is discharged to the outside.

Description

Technical Field

[0001] The present application relates to the field of transportation facilities, and in particular to a back-pressure steam turbine that is easy to clean. Background Art

[0002] A steam turbine is a rotary steam-powered device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated airflow and is then sprayed onto the blades, causing the rotor equipped with the blade rows to rotate and perform work externally. During the jetting process, the gas needs to be filtered to prevent dust and powdery impurities in the gas from entering the turbine blade rows, causing damage to the blade rows and affecting the normal operation of the turbine.

[0003] During use, filtering is usually performed through a filter. However, after long-term use, dust is easily accumulated on the filter at the intake pipe, affecting filtering. Generally, the pipe needs to be disassembled to remove the filter for cleaning, which makes cleaning inconvenient. Utility Model Content

[0004] In order to make up for the above shortcomings, the present application provides a back-pressure steam turbine that is easy to clean, aiming to improve the problems raised in the above background technology.

[0005] An embodiment of the present application provides a back-pressure steam turbine that is easy to clean, including a filter assembly and a cleaning assembly.

[0006] The filter assembly comprises a steam turbine body, an air intake pipe, a filter box and a filter screen. The air intake pipe is arranged between the steam turbine body and the filter box, and the filter screen is arranged in the filter box.

[0007] The cleaning assembly includes a rotating shaft, a rotating rod, a cleaning brush, a baffle and a clamping piece. The rotating shaft rotates and passes through the filter net, the rotating rod rotates and passes through the filter box and is transmission-connected to the rotating shaft. A discharge port is provided at the bottom of the filter box, the baffle is inserted at the bottom of the discharge port, and the clamping piece is arranged on the outside of the filter box and is clamped to the baffle.

[0008] In a specific implementation, a first bevel gear is disposed at one end of the rotating rod, a second bevel gear is fixedly connected to the end of the rotating shaft, and the first bevel gear and the second bevel gear are meshed with each other.

[0009] In the above implementation process, by setting the first bevel gear and the second bevel gear to mesh, the operating rotating rod is rotated, the rotating rod drives the first bevel gear to rotate, the first bevel gear meshes to drive the second bevel gear to rotate, and the second bevel gear drives the rotating shaft to rotate, thereby achieving the purpose of transmission connection.

[0010] In a specific embodiment, a hand wheel is arranged on the top of the rotating rod, and an anti-slip pad is provided on the surface of the hand wheel.

[0011] In the above implementation process, by providing a hand wheel, it is convenient to drive the rotating rod to rotate by turning the hand wheel, which is convenient for operation.

[0012] In a specific embodiment, a slot plate is provided at the bottom of the filter box, and the baffle is inserted in the slot plate.

[0013] In the above implementation process, the groove plate corresponds to the discharge opening, so that the baffle plate can be inserted into the groove plate in a plug-in manner to close the discharge opening.

[0014] In a specific embodiment, the baffle is trapezoidal in shape, and the inner wall of the groove plate is matched with the baffle.

[0015] In the above implementation process, the trapezoidal design ensures sealing.

[0016] In a specific embodiment, the clamping component includes a shell, a spring, a movable plate and a clamping rod, the shell is fixedly connected to the filter box, the spring is arranged in the shell, the movable plate slides through the shell, the clamping rod is fixedly connected to the movable plate and slides through the shell, and the clamping rod is clamped to the baffle.

[0017] In the above implementation process, by setting the shell, spring, movable plate and clamping rod, the elastic action of the spring is utilized to enable the movable plate to drive the clamping rod to move toward the outside of the shell in the absence of other external forces, so that the clamping rod remains clamped to the connecting baffle.

[0018] In a specific implementation manner, the baffle is provided with a slot, and the clamping rod is adapted to the slot.

[0019] In the above implementation process, the card rod and the card slot are provided, and the card rod is inserted into the card slot to achieve the card connection.

[0020] In a specific embodiment, the end of the cleaning brush is fixedly connected to the rotating shaft, and the cleaning brush fits the filter screen.

[0021] Beneficial effect: The present application provides a back-pressure steam turbine that is easy to clean. By setting a steam turbine body, an air inlet pipe, a filter box, a filter screen, a rotating shaft, a rotating rod, a cleaning brush, a baffle and a clip, the rotating rod is used to drive the rotating shaft and the cleaning brush to rotate, and the accumulated dust on the filter screen is cleaned. At the same time, the clip is released to clamp the baffle, and the baffle is removed to discharge the cleaned dust to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of a back-pressure steam turbine that is easy to clean provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the filter box structure provided in the embodiment of the present application;

[0025] Figure 3 A schematic diagram of the filter assembly structure provided for an embodiment of the present application;

[0026] Figure 4 A schematic diagram of a baffle structure provided for an embodiment of the present application;

[0027] Figure 5 A schematic diagram of the structure of the card connector provided in an embodiment of the present application.

[0028] In the figure: 100-filter assembly; 110-turbine body; 120-intake pipe; 140-filter box; 141-discharge port; 142-groove plate; 150-filter screen; 200-cleaning assembly; 210-rotating shaft; 212-second bevel gear; 220-rotating rod; 221-first bevel gear; 222-handwheel; 230-cleaning brush; 240-baffle; 241-slot; 260-clamping piece; 261-housing; 262-spring; 263-moving plate; 264-clamping rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0030] See also Figure 1-Figure 5 The present application provides a back-pressure steam turbine that is easy to clean, including a filter assembly 100 and a cleaning assembly 200 .

[0031] See also Figure 1 , 2 3. The filter assembly 100 includes a steam turbine body 110, an air intake pipe 120, a filter box 140 and a filter screen 150. The air intake pipe 120 is disposed between the steam turbine body 110 and the filter box 140, and the filter screen 150 is disposed in the filter box 140.

[0032] Among them, a first bevel gear 221 is provided at one end of the rotating rod 220, and a second bevel gear 212 is fixedly connected to the end of the rotating shaft 210. The first bevel gear 221 and the second bevel gear 212 are meshed with each other. By setting the first bevel gear 221 and the second bevel gear 212 to be meshed with each other, the rotating rod 220 is operated to rotate, the rotating rod 220 drives the first bevel gear 221 to rotate, the first bevel gear 221 is meshed to drive the second bevel gear 212 to rotate, and the second bevel gear 212 drives the rotating shaft 210 to rotate, thereby achieving the purpose of transmission connection.

[0033] In a specific implementation, a hand wheel 222 is provided on the top of the rotating rod 220, and an anti-slip pad is provided on the surface of the hand wheel 222. By providing the hand wheel 222, the rotating rod 220 can be driven to rotate by turning the hand wheel 222, which is convenient for operation.

[0034] A slot plate 142 is provided at the bottom of the filter box 140 , and a baffle 240 is inserted into the slot plate 142 . The slot plate 142 corresponds to the discharge port 141 , so that the baffle 240 can be inserted into the slot plate 142 in a plug-in manner to close the discharge port 141 .

[0035] See also Figure 1 , 2 , 3, 4 and 5, the cleaning assembly 200 includes a rotating shaft 210, a rotating rod 220, a cleaning brush 230, a baffle 240 and a clamping piece 260, the rotating shaft 210 rotates to penetrate the filter screen 150, the rotating rod 220 rotates to penetrate the filter box 140 and is transmission-connected to the rotating shaft 210, a discharge port 141 is opened at the bottom of the filter box 140, the baffle 240 is inserted at the bottom of the discharge port 141, and the clamping piece 260 is arranged on the outside of the filter box 140 and is clamped to the baffle 240.

[0036] It should be noted that the baffle 240 is trapezoidal, and the inner wall of the groove plate 142 is matched with the baffle 240, and the trapezoidal design ensures sealing.

[0037] In this embodiment, the clamping member 260 includes a shell 261, a spring 262, a movable plate 263 and a clamping rod 264. The shell 261 is fixedly connected to the filter box 140, the spring 262 is arranged in the shell 261, the movable plate 263 slides through the shell 261, the clamping rod 264 is fixedly connected to the movable plate 263 and slides through the shell 261, and the clamping rod 264 is clamped to the baffle 240. By setting the shell 261, the spring 262, the movable plate 263 and the clamping rod 264, the elastic action of the spring 262 is utilized to make the movable plate 263 drive the clamping rod 264 to move toward the outside of the shell 261 in the absence of other external forces, so that the clamping rod 264 remains clamped and connected to the baffle 240.

[0038] The baffle 240 is provided with a card slot 241 , and the card rod 264 is adapted to the card slot 241 . The card rod 264 and the card slot 241 are provided, and the card rod 264 is inserted into the card slot 241 to achieve a card connection.

[0039] In a specific embodiment, the end of the cleaning brush 230 is fixedly connected to the rotating shaft 210 , and the cleaning brush 230 is attached to the filter screen 150 .

[0040] The working principle of the back-pressure steam turbine which is easy to clean: during use, when the back-pressure steam turbine is stopped after a period of use, the movable plate 263 is pulled up to squeeze the spring 262, and the movable plate 263 drives the clamping rod 264 to move up and disengage from the clamping slot 241, and the pull ring at the end of the baffle plate 240 is pulled to remove it from the slot plate 142, and then the hand wheel 222 is turned to drive the rotating rod 220 to rotate, and the rotating rod 220 drives the first bevel gear 221 to rotate, and the first bevel gear 221 engages to drive the second bevel gear 212 to rotate, and the second bevel gear 212 drives the rotating shaft 210 to rotate, and the rotating shaft 210 drives the cleaning brush 230 to rotate to clean the dust accumulated on the filter screen 150, and the dust accumulated is discharged from the discharge port 141, so as to facilitate and quickly clean the dust accumulated on the filter screen 150, avoid the complicated disassembly of the pipeline and the filter screen 150, and only need to disassemble and assemble during overhaul, thereby improving applicability.

[0041] It should be noted that the specific model and specifications of the steam turbine body 110 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0042] The power supply and principle of the steam turbine body 110 are clear to those skilled in the art and will not be described in detail here.

[0043] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A back pressure steam turbine that is easy to clean, characterized in that: include A filter assembly (100), the filter assembly (100) comprising a steam turbine body (110), an air intake pipe (120), a filter box (140) and a filter screen (150), the air intake pipe (120) being arranged in communication between the steam turbine body (110) and the filter box (140), and the filter screen (150) being arranged in the filter box (140); A cleaning assembly (200), the cleaning assembly (200) comprising a rotating shaft (210), a rotating rod (220), a cleaning brush (230), a baffle (240) and a clamping piece (260), the rotating shaft (210) rotatingly passes through the filter screen (150), the rotating rod (220) rotatingly passes through the filter box (140) and is transmission-connected to the rotating shaft (210), a discharge port (141) is provided at the bottom of the filter box (140), the baffle (240) is inserted at the bottom of the discharge port (141), and the clamping piece (260) is arranged at the outside of the filter box (140) and is clamped to the baffle (240).

2. The easy-to-clean back-pressure steam turbine according to claim 1, characterized in that: A first bevel gear (221) is disposed at one end of the rotating rod (220), and a second bevel gear (212) is fixedly connected to the end of the rotating shaft (210), and the first bevel gear (221) and the second bevel gear (212) are meshed with each other.

3. The easy-to-clean back-pressure steam turbine according to claim 1, characterized in that: A hand wheel (222) is arranged on the top of the rotating rod (220), and an anti-slip pad is provided on the surface of the hand wheel (222).

4. The easy-to-clean back-pressure steam turbine according to claim 1, characterized in that: A slot plate (142) is provided at the bottom of the filter box (140), and the baffle plate (240) is inserted into the slot plate (142).

5. The easy-to-clean back-pressure steam turbine according to claim 4, characterized in that: The baffle (240) is trapezoidal in shape, and the inner wall of the slot plate (142) is adapted to the baffle (240).

6. The easy-to-clean back-pressure steam turbine according to claim 1, characterized in that: The clamping member (260) includes a shell (261), a spring (262), a movable plate (263) and a clamping rod (264); the shell (261) is fixedly connected to the filter box (140); the spring (262) is arranged in the shell (261); the movable plate (263) slides through the shell (261); the clamping rod (264) is fixedly connected to the movable plate (263) and slides through the shell (261); the clamping rod (264) is clamped to the baffle (240).

7. The easy-to-clean back-pressure steam turbine according to claim 6, characterized in that: The baffle (240) is provided with a clamping slot (241), and the clamping rod (264) is adapted to fit the clamping slot (241).

8. The easy-to-clean back-pressure steam turbine according to claim 1, characterized in that: The end of the cleaning brush (230) is fixedly connected to the rotating shaft (210), and the cleaning brush (230) is in close contact with the filter screen (150).

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