Steam turbine

Abstract

The steam turbine comprises a shell, a rotor and a catching device, the shell is provided with a first cavity, the first cavity is sequentially divided into an outlet cavity and a steam inlet cavity in the first direction, a nozzle is formed in the side, opposite to the steam inlet cavity, of the outlet cavity in the first direction, the steam inlet cavity is provided with a steam inlet, and the rotor is arranged in the steam inlet cavity. The rotor is rotatably arranged in the first cavity of the shell, the rotor extends in the first direction, the rotor is provided with a plurality of blades in the first direction, the blades are arranged in the steam inlet cavity, the catching device comprises a dust collector, an endoscopic detector and a catching pipe, and the dust collector is arranged in the steam inlet cavity. A dust collection hose of the dust collector is communicated into the capturing pipe, an endoscope hose of the endoscopic detector is communicated into the capturing pipe, and the capturing pipe is detachably arranged on the shell and extends into the first cavity. Therefore, the steam turbine has the advantages of being smooth in operation and long in service life.

Description

Technical Field

[0001] The invention relates to the technical field of steam turbines, and in particular to a steam turbine. Background Art

[0002] A steam turbine is a rotary power machine that converts the thermal energy of steam into mechanical energy. A steam turbine needs to be inspected to promptly detect whether there are any abnormalities in the operation of the steam turbine. In the related technology, the positioning of the steam turbine is inaccurate and the internal abnormalities of the steam turbine cannot be accurately captured. A steam turbine capture device and a steam turbine are designed to solve the above problems. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a steam turbine.

[0004] A steam turbine according to an embodiment of the present invention comprises a casing, a rotor and a capture device, wherein the casing has a first cavity, the first cavity is sequentially divided into an outlet cavity and a steam inlet cavity in a first direction, the outlet cavity is provided with a nozzle on a side facing away from the steam inlet cavity in the first direction, the steam inlet cavity has a steam inlet, the rotor is rotatably disposed in the first cavity of the casing, the rotor extends along the first direction, the rotor is provided with a plurality of blades in the first direction, and the plurality of blades are disposed in the steam inlet cavity, the capture device comprises a vacuum cleaner, an endoscope probe and a capture tube, the vacuum hose of the vacuum cleaner passes into the capture tube, the endoscope hose of the endoscope probe passes into the capture tube, and the capture tube is detachably disposed on the casing and extends into the first cavity.

[0005] Therefore, the steam turbine according to the embodiment of the present invention has the advantages of smooth operation and long service life.

[0006] In some embodiments, a positioning ring is provided on the outer side of the capture tube, and the positioning ring abuts against the outer surface of the shell.

[0007] In some embodiments, a plurality of the blades are equidistantly arranged on the rotor.

[0008] In some embodiments, an inner diameter of at least a portion of the steam inlet cavity increases in the first direction away from the outlet cavity.

[0009] In some embodiments, an inner diameter of a portion of the steam inlet cavity adjacent to the outlet cavity increases in the first direction away from the outlet cavity.

[0010] In some embodiments, outer diameters of at least some of the plurality of blades increase in the first direction away from the outlet cavity.

[0011] In some embodiments, the housing has a capturing hole, the capturing hole is adjacent to the nozzle in the first direction, and the capturing tube is detachably extended into the capturing hole.

[0012] In some embodiments, the housing includes a plurality of sub-housings, and the plurality of sub-housings are detachably connected.

[0013] In some embodiments, a pressure gauge is provided on the shell, and the pressure gauge is used to detect the steam pressure in the steam inlet chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of a steam turbine according to an embodiment of the present invention.

[0015] Figure numerals: 1. outer shell; 2. rotor; 3. blades; 4. steam inlet chamber; 5. nozzle; 6. pressure gauge; 7. vacuum cleaner; 8. endoscope detector; 9. vacuum hose; 10. endoscope hose; 11. capture tube; 12. positioning ring. DETAILED DESCRIPTION

[0016] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0017] The steam turbine according to the embodiment of the present invention is described below with reference to the accompanying drawings. Figure 1 As shown, the steam turbine according to the embodiment of the present invention includes a casing 1, a rotor 2 and a capture device.

[0018] The housing 1 has a first cavity, which is divided into an outlet cavity and a steam inlet cavity 4 in a first direction. A nozzle 5 is provided on the side of the outlet cavity facing away from the steam inlet cavity 4 in the first direction, and the steam inlet cavity 4 has a steam inlet. The rotor 2 is rotatably arranged in the first cavity of the housing 1, and the rotor 2 extends along the first direction. The rotor 2 is provided with a plurality of blades 3 in the first direction, and the plurality of blades 3 are arranged in the steam inlet cavity 4. Thus, steam can be passed into the steam inlet cavity 4 and drive the blades 3 and the rotor 2 to rotate so as to generate electricity, and the steam can be discharged from the nozzle 5 of the outlet cavity. For example, the plurality of blades 3 are arranged on the rotor 2 at equal distances.

[0019] The capture device includes a vacuum cleaner 7, an endoscope probe 8 and a capture tube 11. The vacuum hose 9 of the vacuum cleaner 7 is passed into the capture tube 11, and the endoscope hose 10 of the endoscope probe 8 is passed into the capture tube 11. The capture tube 11 is detachably arranged on the housing 1 and extends into the first cavity. Thus, the vacuum hose 9 of the vacuum cleaner 7 and the endoscope hose 10 of the endoscope probe 8 can be extended into the first cavity of the housing 1 through the capture tube 11. Thus, the first cavity can be detected through the endoscope hose 10 of the capture device, and when there are foreign objects in the first cavity, the foreign objects can be directly adsorbed through the vacuum hose 9 of the vacuum cleaner 7.

[0020] In some embodiments, a positioning ring 12 is provided on the outer side of the capture tube 11, and the positioning ring 12 abuts against the outer surface of the housing 1. Specifically, the housing 1 has a capture hole, and the capture tube 11 can be removably inserted into the capture hole. The outer diameter of the positioning ring 12 is larger than the diameter of the capture hole, so that the capture tube 11 can be positioned. The capture hole is adjacent to the nozzle 5 in the first direction, so that the steam in the first cavity has less influence on the capture tube 11.

[0021] In some embodiments, the housing 1 includes a plurality of sub-housings, which are detachably connected to each other. Thus, when there are impurities in the plurality of blades 3, corresponding parts of the plurality of sub-housings can be disassembled so that the capture tube 11 can find and absorb the impurities.

[0022] In some embodiments, the inner diameter of at least part of the steam inlet chamber 4 increases in the first direction away from the outlet chamber. The inner diameter of the part of the steam inlet chamber 4 adjacent to the outlet chamber increases in the first direction away from the outlet chamber. The outer diameter of at least part of the plurality of blades 3 increases in the first direction away from the outlet chamber. Thus, when the steam moves in the first direction in the direction adjacent to the outlet chamber, the inner diameter of the steam inlet chamber 4 decreases, so that the steam can drive the blades 3 to rotate.

[0023] In some embodiments, the housing 1 is provided with a pressure gauge 6, which is used to detect the steam pressure in the steam inlet cavity 4. Specifically, the pressure gauge 6 is adjacent to the outlet cavity in the first direction, so that it can be determined whether there are impurities in the first cavity by the steam pressure.

[0024] The capture device of the steam turbine according to the embodiment of the present invention can allow the dust hose 9 of the vacuum cleaner 7 and the endoscope hose 10 of the endoscope detector 8 to extend into the first cavity of the outer shell 1 through the capture tube 11. When the debris in the steam inlet cavity 4 is detected, the vacuum cleaner 7 starts to work, ensuring that the first cavity remains clean, ensuring the smooth operation of the steam turbine, and extending the service life of the steam turbine.

[0025] Therefore, the steam turbine according to the embodiment of the present invention has the advantages of smooth operation and long service life.

[0026] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0031] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A steam turbine, characterized in that: It includes a shell, a rotor and a capture device, the shell has a first cavity, the first cavity is divided into an outlet cavity and a steam inlet cavity in a first direction, the outlet cavity is provided with a nozzle on the side of the first direction facing away from the steam inlet cavity, the steam inlet cavity has a steam inlet, the rotor is rotatably arranged in the first cavity of the shell, the rotor extends along the first direction, the rotor is provided with a plurality of blades in the first direction, and the plurality of blades are arranged in the steam inlet cavity, the capture device includes a vacuum cleaner, an endoscope probe and a capture tube, the vacuum hose of the vacuum cleaner is passed into the capture tube, the endoscope hose of the endoscope probe is passed into the capture tube, and the capture tube is detachably arranged on the shell and extends into the first cavity.

2. The steam turbine according to claim 1, characterized in that A positioning ring is provided on the outer side of the capture tube, and the positioning ring abuts against the outer surface of the shell.

3. The steam turbine according to claim 2, characterized in that: A plurality of blades are arranged on the rotor at equal intervals.

4. The steam turbine according to claim 3, characterized in that An inner diameter of at least a portion of the steam inlet cavity increases in the first direction away from the outlet cavity.

5. The steam turbine according to claim 4, characterized in that An inner diameter of a portion of the steam inlet cavity adjacent to the outlet cavity increases in the first direction away from the outlet cavity.

6. The steam turbine according to claim 5, characterized in that The outer diameter of at least part of the plurality of blades increases in the first direction away from the outlet cavity.

7. The steam turbine according to claim 1, characterized in that The housing has a capture hole, the capture hole is adjacent to the nozzle in the first direction, and the capture tube is detachably extended into the capture hole.

8. The steam turbine according to claim 7, characterized in that The housing includes a plurality of sub-housings, and the plurality of sub-housings are detachably connected.

9. The steam turbine according to claim 1, characterized in that: The shell is provided with a pressure gauge, and the pressure gauge is used to detect the steam pressure in the steam inlet cavity.

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