Efficient energy-saving back pressure type steam turbine

Abstract

The utility model relates to the technical field of back-pressure steam turbines, and discloses an efficient energy-saving back-pressure steam turbine which comprises a back-pressure steam turbine body, a supporting frame is arranged at the bottom of the back-pressure steam turbine body, and buffering assemblies used for damping are arranged on the two sides of the bottom of the supporting frame in an axial symmetry mode. A noise reduction assembly used for absorbing noise generated by the back pressure type steam turbine body is arranged on one side of the top of the supporting frame and located on the side face of the back pressure type steam turbine body. According to the efficient and energy-saving back-pressure steam turbine, through the arrangement of the noise reduction assembly, when the back-pressure steam turbine body operates, due to the fact that the surface of a motor for driving the steam turbine to rotate is covered with a U-shaped cover, and a sound insulation plate is arranged on the inner wall of the U-shaped cover, noise generated by the back-pressure steam turbine body is absorbed, and outward transmission of the noise is blocked; and therefore, the purpose of reducing the noise of the back-pressure steam turbine body during operation is achieved, and nearby workers are in a low-noise working environment.

Description

Technical Field

[0001] The utility model relates to the technical field of back-pressure steam turbines, in particular to a high-efficiency and energy-saving back-pressure steam turbine. Background Art

[0002] A steam turbine with an exhaust pressure greater than atmospheric pressure is called a back-pressure steam turbine. Exhaust steam can be used for heating or to supply the original medium and low pressure steam turbines to replace the medium and low pressure boilers of old power plants. When the back-pressure steam turbine is used to supply the original medium and low pressure steam turbines to replace the medium and low pressure boilers of old power plants, it is also called a front-mounted steam turbine, which can not only increase the power generation capacity of the original power plant, but also improve the thermal economy of the original power plant. The exhaust pressure design value of the back-pressure steam turbine for heating depends on different heating purposes; the back pressure of the front-mounted steam turbine is often greater than 5 MPa, depending on the steam parameters of the original unit. After the exhaust steam is used in the heating system, it condenses into water and is then pumped back to the boiler as feed water.

[0003] An efficient and energy-saving back-pressure steam turbine unit disclosed in the publication number CN216306033U has a compact and novel structure. The protective railings are stored and installed, making the railings more convenient to use and reducing the installation and disassembly steps. The unit can be assembled and used quickly and efficiently, and the flexibility of use is improved, making it suitable for popularization and use.

[0004] However, this high-efficiency and energy-saving back-pressure steam turbine has the following disadvantages:

[0005] (1) When the steam turbine is running, a lot of vibration will be generated. If the vibration cannot be buffered and absorbed, it will affect the running state of the steam turbine and thus reduce its running efficiency.

[0006] (2) When the steam turbine is running, it will generate a lot of noise, and the continuous presence of the noise will cause hearing damage to nearby workers. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] The technical problem solved by the utility model is to provide a high-efficiency and energy-saving back-pressure steam turbine with high practicality, simple operation and relatively simple structure. It solves the problem that the steam turbine mentioned in the above background technology will generate a lot of vibration when it is running, and the vibration cannot be buffered and absorbed, which will affect the operating state of the steam turbine. When the steam turbine is running, it will generate a lot of noise, and the continuous existence of the noise will cause hearing damage to nearby workers.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a high-efficiency and energy-saving back-pressure steam turbine, comprising a back-pressure steam turbine body, a support frame is arranged at the bottom of the back-pressure steam turbine body, and buffer components for shock absorption are axially symmetrically arranged on both sides of the bottom of the support frame, and a noise reduction component for absorbing the noise generated by the back-pressure steam turbine body is arranged on one side of the top of the support frame and on the side of the back-pressure steam turbine body.

[0011] Optionally, the buffer assembly includes fixed plates axially symmetrically arranged on both sides of the bottom of the support frame, the surface of the fixed plate is movably connected with a connecting plate, one end of the connecting plate is movably connected with a sleeve, the interior of the sleeve is slidably connected with a fixing rod, and a spring is arranged on the surface of the fixing rod and on one side of the sleeve.

[0012] Optionally, both ends of the fixing rod are fixedly connected to connecting plates, and the bottom of the connecting plate is fixedly connected to a base.

[0013] Optionally, the noise reduction component includes a U-shaped cover arranged on one side of the top of the support frame and located on the side of the back-pressure steam turbine body, and the inner wall of the U-shaped cover is provided with a sound insulation board for absorbing the noise generated by the back-pressure steam turbine body.

[0014] Optionally, the bottom of the base is fixedly connected to a bottom plate, the top of the bottom plate is fixedly connected to a shock-absorbing piston rod, and the top end of the shock-absorbing piston rod is fixedly connected to the bottom surface of the support frame.

[0015] Optionally, support rods are fixedly connected to the four corners of the bottom of the base plate, and gaskets are fixedly connected to the bottoms of the support rods.

[0016] Optionally, a control box is provided on one side of the top of the back-pressure steam turbine body, and a display module is provided on the surface of the control box.

[0017] (III) Beneficial effects

[0018] The utility model provides a high-efficiency and energy-saving back-pressure steam turbine, which has the following beneficial effects:

[0019] 1. The high-efficiency and energy-saving back-pressure steam turbine has a buffer assembly and a shock-absorbing piston rod. When the back-pressure steam turbine body is in operation, the vibration generated by the back-pressure steam turbine body will drive the support frame at the bottom thereof to move downward as a whole, thereby causing the support frame to drive the displacement of the sleeve through the connecting piece to compress the spring, thereby buffering the vibration of the back-pressure steam turbine body through the spring, and the shock-absorbing piston rod arranged at the bottom of the support frame will absorb the vibration generated by the spring, thereby completing the buffering of the back-pressure steam turbine body, avoiding the back-pressure steam turbine body from being in a vibrating state during production, and thereby increasing its service life.

[0020] 2. The high-efficiency and energy-saving back-pressure steam turbine, through the setting of the noise reduction component, when the back-pressure steam turbine body is in operation, the surface of the motor driving the steam turbine to rotate is covered with a U-shaped cover, and a sound insulation board is provided on the inner wall of the U-shaped cover, thereby absorbing the noise generated by the back-pressure steam turbine body and blocking its external transmission, thereby achieving the purpose of reducing the noise when the back-pressure steam turbine body is in operation, so that nearby workers are in a low-noise working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the back-pressure steam turbine body of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the buffer component of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the noise reduction component of the utility model.

[0025] In the figure: 1. back-pressure steam turbine body; 2. support frame; 3. buffer assembly; 31. fixing plate; 32. connecting plate; 33. sleeve; 34. fixing rod; 341. connecting plate; 342. base; 35. spring; 4. noise reduction assembly; 41. U-shaped cover; 42. sound insulation board; 5. bottom plate; 6. shock-absorbing piston rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 4 The utility model provides a technical solution: a high-efficiency and energy-saving back-pressure steam turbine, comprising a back-pressure steam turbine body 1, a support frame 2 is arranged at the bottom of the back-pressure steam turbine body 1, and buffer components 3 for shock absorption are axially symmetrically arranged on both sides of the bottom of the support frame 2, and a noise reduction component 4 for absorbing the noise generated by the back-pressure steam turbine body 1 is arranged on one side of the top of the support frame 2 and on the side of the back-pressure steam turbine body 1.

[0028] See also Figure 1 and Figure 2Support rods are fixedly connected to the four corners of the bottom of the base plate 5, and gaskets are fixedly connected to the bottom of the support rods. A control box is arranged on one side of the top of the back-pressure steam turbine body 1, and a display module is arranged on the surface of the control box. The arrangement of the support rods and the gaskets improves the stability of the base plate 5 sitting on the bottom surface.

[0029] Embodiment 1:

[0030] See also Figure 3 The buffer assembly 3 includes a fixing plate 31 symmetrically arranged on both sides of the bottom of the support frame 2, a connecting plate 32 is movably connected to the surface of the fixing plate 31, a sleeve 33 is movably connected to one end of the connecting plate 32, a fixing rod 34 is slidably connected to the inside of the sleeve 33, a spring 35 is arranged on the surface of the fixing rod 34 and on one side of the sleeve 33, both ends of the fixing rod 34 are fixedly connected to a connecting plate 341, a base 342 is fixedly connected to the bottom of the connecting plate 341, a bottom of the base 342 is fixedly connected to a bottom plate 5, a damping piston rod 6 is fixedly connected to the top of the bottom plate 5, and the damping piston The top end of the rod 6 is fixedly connected to the bottom surface of the support frame 2. When the back-pressure steam turbine body 1 is in operation, the vibration generated by it will drive the support frame 2 at the bottom thereof to move downward as a whole, thereby causing the support frame 2 to drive the displacement of the sleeve 33 through the connecting piece 32 to compress the spring 35, thereby buffering the vibration of the back-pressure steam turbine body 1 through the spring 35, and the shock-absorbing piston rod 6 arranged at the bottom of the support frame 2 will absorb the vibration generated by the spring 35, thereby completing the buffering of the back-pressure steam turbine body 1, avoiding the back-pressure steam turbine body 1 from being in a vibrating state during production, and thereby increasing its service life.

[0031] Embodiment 2:

[0032] See also Figure 4 The noise reduction component 4 includes a U-shaped cover 41 arranged on one side of the top of the support frame 2 and located on the side of the back-pressure steam turbine body 1. The inner wall of the U-shaped cover 41 is provided with a sound insulation board 42 for absorbing the noise generated by the back-pressure steam turbine body 1. When the back-pressure steam turbine body 1 is in operation, the surface of the motor driving the steam turbine to rotate is covered with the U-shaped cover 41, and the sound insulation board 42 is provided on the inner wall of the U-shaped cover 41, thereby absorbing the noise generated by the back-pressure steam turbine body 1 and blocking its external transmission, thereby achieving the purpose of reducing the noise of the back-pressure steam turbine body 1 during operation, so that nearby staff are in a low-noise working environment.

[0033] In the utility model, the working steps of the device are as follows:

[0034] Step 1: When the back-pressure steam turbine body 1 is running, the vibration generated by it will drive the support frame 2 at the bottom thereof to move downward as a whole, so that the support frame 2 drives the displacement of the sleeve 33 through the connecting piece 32 to compress the spring 35, so that the vibration of the back-pressure steam turbine body 1 is buffered by the spring 35, and the shock-absorbing piston rod 6 arranged at the bottom of the support frame 2 will absorb the vibration generated by the spring 35, thereby completing the buffering of the back-pressure steam turbine body 1;

[0035] The second step: When the back-pressure steam turbine body 1 is running, the surface of the motor that drives the steam turbine to rotate is covered with a U-shaped cover 41, and a sound insulation board 42 is provided on the inner wall of the U-shaped cover 41, thereby absorbing the noise generated by the back-pressure steam turbine body 1 and blocking its transmission to the outside.

[0036] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0037] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and energy-saving back-pressure steam turbine, comprising a back-pressure steam turbine body (1), characterized in that: A support frame (2) is arranged at the bottom of the back-pressure steam turbine body (1), and buffer components (3) for shock absorption are arranged axially symmetrically on both sides of the bottom of the support frame (2), and a noise reduction component (4) for absorbing noise generated by the back-pressure steam turbine body (1) is arranged on one side of the top of the support frame (2) and on the side of the back-pressure steam turbine body (1).

2. The high-efficiency and energy-saving back-pressure steam turbine according to claim 1, characterized in that: The buffer assembly (3) comprises a fixing plate (31) axially symmetrically arranged on both sides of the bottom of the support frame (2); a connecting plate (32) is movably connected to the surface of the fixing plate (31); one end of the connecting plate (32) is movably connected to a sleeve (33); a fixing rod (34) is slidably connected to the interior of the sleeve (33); and a spring (35) is arranged on the surface of the fixing rod (34) and on one side of the sleeve (33).

3. The high-efficiency and energy-saving back-pressure steam turbine according to claim 2, characterized in that: Both ends of the fixing rod (34) are fixedly connected to a connecting plate (341), and the bottom of the connecting plate (341) is fixedly connected to a base (342).

4. The high-efficiency and energy-saving back-pressure steam turbine according to claim 1, characterized in that: The noise reduction component (4) comprises a U-shaped cover (41) arranged on one side of the top of the support frame (2) and located on the side of the back-pressure steam turbine body (1), and the inner wall of the U-shaped cover (41) is provided with a sound insulation board (42) for absorbing noise generated by the back-pressure steam turbine body (1).

5. The high-efficiency and energy-saving back-pressure steam turbine according to claim 3 is characterized in that: The bottom of the base (342) is fixedly connected to a bottom plate (5), the top of the bottom plate (5) is fixedly connected to a shock-absorbing piston rod (6), and the top end of the shock-absorbing piston rod (6) is fixedly connected to the bottom surface of the support frame (2).

6. The high-efficiency and energy-saving back-pressure steam turbine according to claim 5, characterized in that: Support rods are fixedly connected at the four corners of the bottom of the bottom plate (5), and gaskets are fixedly connected at the bottom of the support rods.

7. The high-efficiency and energy-saving back-pressure steam turbine according to claim 1, characterized in that: A control box is arranged on one side of the top of the back-pressure steam turbine body (1), and a display module is arranged on the surface of the control box.

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