Steam turbine steam transmission pipeline energy-saving device capable of filtering steam

Abstract

The utility model discloses a steam turbine steam transmission pipeline energy-saving device capable of filtering steam, which comprises a filtering cylinder body and a flow speed adjusting device arranged in the filtering cylinder body, the flow speed adjusting device comprises a central shaft rod arranged in the filtering cylinder body and a spiral blade arranged on the central shaft rod, and the spiral blade is arranged on the filtering cylinder body. The blade rotating motor is arranged at the top of the filter cylinder and drives the central shaft rod to rotate clockwise and anticlockwise, and a cylinder rotating motor for driving the filter cylinder to rotate clockwise and anticlockwise is arranged at the bottom of the filter cylinder; according to the steam turbine steam transmission pipeline energy-saving device capable of filtering steam, the flow speed adjusting mechanism is arranged in the filtering pipeline, and the flow adjusting range is large.

Description

Technical Field

[0001] The utility model relates to an energy-saving device for a steam transmission pipeline of a steam turbine which can filter steam. Background Art

[0002] The steam filter of a steam turbine is a device specially used to filter the steam in the steam turbine system, which plays a very important role. Its main function is to prevent solid particles, impurities and other pollutants from entering the steam turbine system, ensuring the purity and cleanliness of the steam, thereby protecting the normal operation of the steam turbine equipment.

[0003] These steam filters are usually installed at the steam inlet of the steam turbine or upstream of the steam transmission pipeline to ensure that the steam entering the steam turbine is clean, dry, and does not contain any impurities that may damage the steam turbine equipment. In this way, the steam filter can effectively prevent pollutants from entering the steam turbine system, reduce corrosion, wear and clogging problems caused by impurities in the steam, thereby extending the service life of the steam turbine equipment and improving the reliability and operating efficiency of the system.

[0004] However, the existing filters in the steam transmission pipelines of steam turbines often have too much or too little gas flow, resulting in high overall energy consumption. To solve this problem, a flow control valve is generally added to the steam filter to reduce energy consumption by adjusting the steam flow, but this method has a limited range of flow regulation, which is not convenient for some applications that require a wide range of flow regulation. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a steam turbine steam transmission pipeline energy-saving device that can adjust a larger flow range and filter steam by setting a flow rate regulating mechanism in the filter pipeline.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A steam turbine steam transmission pipeline energy-saving device capable of filtering steam comprises a filter cylinder and a flow rate regulating device arranged in the filter cylinder, the flow rate regulating device comprises a central shaft arranged in the filter cylinder, a spiral blade arranged on the central shaft, and a blade rotating motor arranged at the top of the filter cylinder for driving the central shaft to rotate clockwise and counterclockwise, and a cylinder rotating motor for driving the filter cylinder to rotate clockwise and counterclockwise is arranged at the bottom of the filter cylinder.

[0008] Preferably, the filter cylinder body is provided with filter holes, and there is more than one filter hole, which are distributed at 1 / 2-1 / 4 of the cylinder body to form an air inlet side.

[0009] Preferably, the pore size of the filter hole is gradually reduced along the steam inflow direction.

[0010] Preferably, the pore diameters of the filter holes are arranged to increase gradually along the steam inflow direction.

[0011] Preferably, a motor bracket for supporting a blade rotating motor is disposed on the top of the filter cylinder, and a bottom plate for closing the cylinder is disposed on the bottom of the filter cylinder.

[0012] Preferably, an inner annular tooth groove is provided at the bottom of the base plate, and a driving shaft of the drum rotating motor is connected to a rotating gear, which is meshed with the inner annular tooth groove.

[0013] Preferably, the spiral blade is disposed adjacent to the inner wall of the cylinder.

[0014] Preferably, an air inlet channel is arranged on the side of the filter cylinder, an air outlet channel is arranged on the top of the filter cylinder, and a reflux channel is arranged on the periphery of the filter cylinder.

[0015] Preferably, the air inlet channel is connected to the reflux channel, and the air outlet channel is connected to the top of the filter cylinder.

[0016] Preferably, the filter holes on the filter cylinder face one side of the reflux channel.

[0017] The beneficial effects of the utility model are:

[0018] By setting up a flow rate regulating device, the flow rate of steam can be adjusted according to actual needs to avoid excessive or insufficient flow, improve the operation efficiency of the pipeline, and reasonably adjust the steam flow rate to reduce energy waste and system pressure loss. The setting of the blade rotating motor and the cylinder rotating motor enables the filter cylinder and the flow rate regulating device to be automatically controlled. The operator can use the motor to rotate clockwise and counterclockwise to adjust the steam flow rate and maintain the filter cylinder. When the fluid needs to be accelerated, the fluid can be accelerated by the clockwise rotating spiral blades and the filter holes set on the downwind side. When the fluid needs to be decelerated, the fluid can be decelerated by the counterclockwise rotating spiral blades and the filter holes set on the upwind side. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a steam turbine steam transmission pipeline energy-saving device capable of filtering steam according to the utility model;

[0020] Figure 2 This is a schematic diagram of the bottom structure of a steam turbine steam transmission pipeline energy-saving device capable of filtering steam according to the utility model;

[0021] Figure 3This is another implementation diagram of a steam turbine steam transmission pipeline energy-saving device capable of filtering steam according to the utility model. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0023] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] Example 1

[0026] See also Figure 1-2As shown, a steam turbine steam transmission pipeline energy-saving device capable of filtering steam comprises a filter cylinder 1 and a flow rate regulating device 2 arranged in the filter cylinder 1, the flow rate regulating device 2 comprises a central shaft 21 arranged in the filter cylinder 1, a spiral blade 22 arranged on the central shaft 21, and a blade rotating motor 23 arranged at the top of the filter cylinder 1 for driving the central shaft 21 to rotate clockwise and counterclockwise, and a cylinder rotating motor 3 for driving the filter cylinder 1 to rotate clockwise and counterclockwise is provided at the bottom of the filter cylinder 1.

[0027] By controlling the relative positions of the central shaft 21 and the spiral blades 22, the speed and flow rate of steam passing through the filter cylinder 1 can be adjusted. The blade rotation motor 23 arranged at the top can drive the central shaft 21 to rotate clockwise and counterclockwise, and the flow rate of air entering the filter cylinder 1 can be accelerated when rotating clockwise, and the flow rate of air entering the filter cylinder 1 can be decelerated when rotating counterclockwise, thereby adjusting the steam flow rate.

[0028] A cylinder rotating motor 3 is provided at the bottom for driving the filter cylinder 1 to rotate clockwise and counterclockwise. The motor is used to drive the filter cylinder 1 to rotate, so as to further adjust the flow rate of air entering the filter cylinder 1. Specifically, the filter holes 11 on the filter cylinder 1 can be switched to the downwind position and the upwind position by rotating. When the larger hole of the filter hole 11 faces the air inlet direction, it is the downwind position, and when the smaller hole of the filter hole 11 faces the air inlet direction, it is the upwind position.

[0029] The whole system can realize automatic control, and by controlling the blade rotating motor 23 and the cylinder rotating motor 3, the flow rate regulating device 2 and the filter cylinder 1 can be automatically adjusted and cleaned. The operator can remotely or on-site control the operation of the motor as needed to achieve the management of the steam flow rate and the filter device.

[0030] The filter cylinder 1 is provided with filter holes 11, and there are more than one filter hole 11, which are distributed at 1 / 2-1 / 4 of the cylinder to form an air inlet side; the aperture of the filter hole 11 is gradually reduced along the steam inlet direction.

[0031] A series of filter holes 11 are arranged on the filter cylinder 1, and these filter holes 11 are arranged in a tapered manner, so that when steam passes through these filter holes 11, the part with a large flow rate enters through the large filter holes 11, and the part with a small flow rate enters through the small filter holes 11, thereby reducing the pressure drop generated when passing through the filter.

[0032] The optimized filter hole 11 can reduce the impact and wear on the filter material, thereby extending the service life of the filter cylinder 1, reducing the replacement and maintenance frequency, and reducing the maintenance cost. At the same time, by optimizing the design of the filter hole 11, the system's steam processing effect is improved, which helps to improve the overall performance and stable operation of the steam turbine system.

[0033] A motor bracket 12 for supporting a blade rotating motor 23 is provided at the top of the filter cylinder 1, and a bottom plate 13 for closing the cylinder is provided at the bottom of the filter cylinder 1; an inner annular tooth groove 131 is provided at the bottom of the bottom plate 13, and a driving shaft of the cylinder rotating motor 3 is connected to a rotating gear, which is meshed with the inner annular tooth groove 131.

[0034] The motor bracket 12 is arranged at the top and the bottom plate 13 is arranged at the bottom, so that the structure of the entire filter cylinder 1 is more stable. This helps to ensure the stability and safety of the equipment during operation; the bottom plate 13 for closing the cylinder is arranged at the bottom, which is conducive to the maintenance and cleaning of the inside of the cylinder, and improves the convenience and efficiency of maintenance.

[0035] The bottom base plate 13 is provided with an inner annular tooth groove 131, and the driving shaft of the cylinder rotating motor 3 is connected with a rotating gear and meshes with the inner annular tooth groove 131. This design can achieve efficient transmission and ensure the normal operation of the cylinder rotating motor 3; through the meshing of the rotating gear and the inner annular tooth groove 131, the stability of the filter cylinder 1 during rotation can be increased, and unnecessary vibration and noise caused by friction and the like can be reduced; reasonable support structure and transmission device design are conducive to reducing the degree of wear of the equipment and extending the service life of the equipment.

[0036] The spiral blade 22 is arranged adjacent to the inner wall of the cylinder; an air inlet channel is arranged on the side of the filter cylinder 1, an air outlet channel is arranged on the top of the filter cylinder 1, and a reflux channel is arranged on the outer periphery of the filter cylinder 1; the air inlet channel is connected with the reflux channel, and the air outlet channel is connected with the top of the filter cylinder 1; the filter hole 11 on the filter cylinder 1 faces one side of the reflux channel.

[0037] The spiral blades 22 are arranged adjacent to the inner wall of the cylinder to increase the acceleration effect of the air flow rate; the air inlet channel is located on the side of the filter cylinder 1, the air outlet channel is located on the top, and the return channel is located on the periphery. Through reasonable channel design, smooth circulation of the airflow can be achieved and the gas treatment effect can be improved.

[0038] The filter hole 11 on the filter cylinder 1 faces the side of the reflux channel, which can reduce the resistance of steam passing through the filter hole 11, reduce pressure loss, and improve the efficiency of the system; the setting of the air inlet channel and the air outlet channel makes the maintenance and cleaning of the inside of the filter cylinder 1 more convenient, reducing downtime and maintenance costs; by optimizing the channel design, it is beneficial to balance the airflow distribution, reduce dead corners and dust accumulation, and improve the stability and reliability of the system.

[0039] Example 2

[0040] See also Figure 3As shown, the difference between this embodiment and embodiment 1 is that the aperture of the filter hole 11 is gradually increased along the steam inlet direction. The purpose of this scheme is the same as that of embodiment 1, and the only difference is the direction when switching the air inlet side.

[0041] The beneficial effects of the utility model are:

[0042] By setting up a flow rate regulating device, the flow rate of steam can be adjusted according to actual needs to avoid excessive or insufficient flow, improve the operation efficiency of the pipeline, and reasonably adjust the steam flow rate to reduce energy waste and system pressure loss. The setting of the blade rotating motor and the cylinder rotating motor enables the filter cylinder and the flow rate regulating device to be automatically controlled. The operator can use the motor to rotate clockwise and counterclockwise to adjust the steam flow rate and maintain the filter cylinder. When the fluid needs to be accelerated, the fluid can be accelerated by the clockwise rotating spiral blades and the filter holes set on the downwind side. When the fluid needs to be decelerated, the fluid can be decelerated by the counterclockwise rotating spiral blades and the filter holes set on the upwind side.

[0043] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.

Claims

1. A steam turbine steam transmission pipeline energy-saving device capable of filtering steam, comprising a filter cylinder and a flow rate regulating device arranged in the filter cylinder, characterized in that: The flow rate regulating device includes a central shaft arranged in the filter cylinder, a spiral blade arranged on the central shaft, and a blade rotating motor arranged on the top of the filter cylinder for driving the central shaft to rotate clockwise and counterclockwise. The bottom of the filter cylinder is provided with a cylinder rotating motor for driving the filter cylinder to rotate clockwise and counterclockwise.

2. The steam turbine steam transmission pipeline energy saving device capable of filtering steam according to claim 1, characterized in that: The filter cylinder body is provided with filter holes, and more than one filter hole is provided, and the filter holes are distributed at 1 / 2-1 / 4 of the cylinder body to form an air inlet side.

3. The steam turbine steam transmission pipeline energy-saving device capable of filtering steam according to claim 2, characterized in that: The aperture of the filter hole is gradually reduced along the steam inflow direction.

4. The steam turbine steam transmission pipeline energy saving device capable of filtering steam according to claim 2, characterized in that: The apertures of the filter holes are arranged to increase gradually along the steam inflow direction.

5. The steam turbine steam transmission pipeline energy-saving device capable of filtering steam according to any one of claims 1 to 4, characterized in that: A motor bracket for supporting a blade rotating motor is arranged on the top of the filter cylinder, and a bottom plate for closing the cylinder is arranged on the bottom of the filter cylinder.

6. The steam turbine steam transmission pipeline energy saving device capable of filtering steam according to claim 5, characterized in that: The bottom of the bottom plate is provided with an inner annular tooth groove, and the driving shaft of the drum rotating motor is connected with a rotating gear, and the rotating gear is meshed with the inner annular tooth groove.

7. The steam turbine steam transmission pipeline energy saving device capable of filtering steam according to claim 2, characterized in that: The spiral blade is arranged adjacent to the inner wall of the cylinder.

8. The steam turbine steam transmission pipeline energy saving device capable of filtering steam according to claim 2, characterized in that: An air inlet channel is arranged on the side of the filter cylinder, an air outlet channel is arranged on the top of the filter cylinder, and a reflux channel is arranged on the periphery of the filter cylinder.

9. The steam turbine steam transmission pipeline energy saving device capable of filtering steam according to claim 8, characterized in that: The air inlet channel is communicated with the reflux channel, and the air outlet channel is communicated with the upper side of the filter cylinder.

10. The steam turbine steam transmission pipeline energy saving device capable of filtering steam according to claim 9, characterized in that: The filter holes on the filter cylinder face one side of the reflux channel.

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