Switch box device of steam turbine

Abstract

The utility model provides a switch box device of a steam turbine, and relates to the technical field of valve switch boxes. The problem that according to an existing switch box device of the steam turbine, it is inconvenient to independently control all valve bodies and monitor the opening and closing stroke of the valve bodies in real time at the same time is solved. Comprising a mounting box body part, and a cover buckling device is connected to the mounting box body part through a hinge; a row of switch shifting pieces are fixedly mounted in the mounting box body piece; stroke detection pieces are rotationally mounted on the row of switch shifting pieces respectively, and the other ends of the row of stroke detection pieces are fixedly mounted in the mounting box body piece respectively; the row of opening and closing limiting pieces are each provided with a row of switch stirring pieces in a sliding mode. The stroke detection piece is matched with the cover buckling device to detect the rotating stroke of the switch handle in real time and obtain the rotating opening and closing degree corresponding to the valve rod, the structure is simple, the opening and closing state of the valve body of the structure can be monitored more conveniently in real time, and the structure is more reasonable.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve switch boxes, and more specifically, particularly relates to a switch box device of a steam turbine. Background Art

[0002] A steam turbine is a rotary steam power 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. Steam turbines are the main equipment in modern thermal power plants. The actual steam turbine accessories include valve groups. In the actual control of the valve group, the valve body needs to be accurately controlled. The current switch box device of the steam turbine is not convenient for independently controlling each valve body while monitoring its opening and closing stroke in real time. At the same time, its valves are not convenient for insurance control and the valve body has poor stability. Utility Model Content

[0003] The disclosed embodiment relates to a switch box device of a steam turbine, so as to solve the problem that the existing switch box device of the steam turbine is not convenient for independently controlling each valve body and monitoring the opening and closing stroke thereof in real time.

[0004] In a first aspect of the present disclosure, a switch box device of a steam turbine is provided, comprising an installation box body member, on which a buckle cover device is connected via a hinge; a row of switch toggle members are fixedly installed inside the installation box body member; stroke detection members are rotatably installed on a row of the switch toggle members, and the other ends of the row of stroke detection members are respectively fixedly installed inside the installation box body member; a row of opening and closing limit members are fixedly installed inside the installation box body member, and a row of switch toggle members are slidably installed on a row of opening and closing limit members; the installation box body member comprises: a box body, a mounting plate, a main pipeline and a discharge pipe, two mounting plates are installed on the box body, and a row of through holes are respectively opened on the two mounting plates; the main pipeline is fixedly installed on the box body; and the discharge pipe is fixedly installed on the bottom of the box body.

[0005] In at least some embodiments, the opening and closing limit member includes: a limit mounting block and a rotation slot, the limit mounting block is fixedly mounted inside the box body; the limit mounting block is provided with a rotation slot; the limit mounting block is an arc-shaped structure.

[0006] In at least some embodiments, the switch toggle member includes: a switch handle and a rotatable mounting seat, the switch handle is fixedly mounted on the end of the valve stem; and the rotatable mounting seat is rotatably mounted on the switch handle.

[0007] In at least some embodiments, the mounting box body also includes: valve bodies and valve stems, wherein the valve bodies are arranged in a row, and a row of valve bodies are respectively mounted inside the box body; a row of valve bodies are respectively connected to the main pipeline; and a row of valve bodies are respectively mounted with valve stems.

[0008] In at least some embodiments, the stroke detection component includes: a stroke sensor and a rotating mounting plate, two rotating mounting plates are rotatably mounted on the bottom of the stroke sensor, and the two rotating mounting plates are respectively fixedly mounted inside the box body; the end of the stroke sensor is fixedly mounted on the rotating mounting seat; the stroke sensor is electrically connected to the stroke switch display.

[0009] In at least some embodiments, the cover-fastening device includes: a closed door panel and a travel switch display, wherein the closed door panel is rotatably mounted on the box body via a hinge; a travel switch display is mounted on the closed door panel; and a handle is provided on the closed door panel.

[0010] In at least some embodiments, the opening and closing limit member also includes: a positioning bolt, which is threadedly connected to the switch handle; the positioning bolt is located inside the rotating slot; a handwheel is provided on the positioning bolt; and the handwheel on the positioning bolt is squeezed and fitted to the top surface of the limit mounting block.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model adopts a stroke detection member, which can be used to detect the rotation stroke of the switch handle in real time in cooperation with the buckle cover device, so as to know the corresponding rotation opening and closing size of the valve stem. The structure is simple, and it is more convenient to monitor the opening and closing state of the valve body of the present structure in real time. The structure is more reasonable, and the opening and closing state of the valve body can be more concrete. At the same time, the discharge pipe can release pressure and discharge gas in time when leakage occurs at the connection of the valve body of the present structure.

[0013] 2. The opening and closing limiter adopted in the utility model can be used for positioning the switch handle, which can effectively ensure the stability of the switch handle after adjustment, improve the reliability of actual use, avoid some looseness problems caused by long-term use, and make it safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the installation box body of the utility model.

[0016] Figure 3 It is a structural schematic diagram of a stroke detection component of the utility model.

[0017] Figure 4 It is a schematic diagram of the structure of the opening and closing limiter of the utility model.

[0018] Figure 5 It is a schematic diagram of the structure of the installation box body of the utility model.

[0019] Figure 6 It is a side structural schematic diagram of the cover buckle device of the utility model.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Install the box body; 101, box body; 1011, mounting plate; 1012, main pipeline; 102, discharge pipe; 103, valve body; 104, valve stem;

[0022] 2. Covering device; 201. Closed door panel; 202. Travel switch display;

[0023] 3. Switch toggle member; 301. Switch handle; 302. Rotating mounting seat;

[0024] 4. Stroke detection member; 401. Stroke sensor; 402. Rotating mounting plate;

[0025] 5. Opening and closing limit piece; 501. Limit mounting block; 5011. Rotation slot hole; 502. Positioning bolt. DETAILED DESCRIPTION

[0026] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0027] Embodiment 1: As shown in the attached Figure 1 To Attachment Figure 6 As shown:

[0028] The utility model provides a switch box device of a steam turbine, comprising an installation box body part 1, on which a buckle cover device 2 is connected through a hinge; a row of switch toggle members 3 are fixedly installed inside the installation box body part 1; travel detection members 4 are rotatably installed on the row of switch toggle members 3, and the other ends of the row of travel detection members 4 are respectively fixedly installed inside the installation box body part 1; a row of opening and closing limit members 5 are fixedly installed inside the installation box body part 1, and a row of switch toggle members 3 are slidably installed on the row of opening and closing limit members 5; the installation box body part 1 comprises: a box body 101, a mounting plate 1011, a main pipeline 1012 and a discharge pipe 102, two mounting plates 1011 are installed on the box body 101, and a row of through holes are respectively opened on the two mounting plates 1011; the main pipeline 1012 is fixedly installed on the box body 101; and the discharge pipe 102 is fixedly installed at the bottom of the box body 101.

[0029] In the embodiment of the present disclosure, the installation box body 1 also includes: a valve body 103 and a valve stem 104, the valve body 103 is provided with a row, and the valve bodies 103 in a row are respectively installed inside the box body 101; the valve bodies 103 in a row are respectively connected to the main pipeline 1012; the valve stems 104 are respectively installed on the valve bodies 103 in a row; the cover device 2 includes: a closed door plate 201 and a travel switch display 202, the closed door plate 201 is rotatably installed on the box body 101 through a hinge; the travel switch display 202 is installed on the closed door plate 201; the closed door plate 201 is provided with a handle; the switch toggle member 3 includes: a switch handle 301 and a rotating mounting seat 302, the switch handle 301 is fixedly installed at the end of the valve stem 104; the rotating mounting seat 302 is rotatably installed on the switch handle 301; the stroke detection member 4 includes: a stroke sensor 401 and a rotating mounting plate 402, and the SHSIWI0-12.7 type stroke sensor 401 can be used, and the stroke switch display 202 adopts The corresponding matching display can be used. Two rotating mounting plates 402 are rotatably installed at the bottom of the stroke sensor 401, and the two rotating mounting plates 402 are respectively fixedly installed inside the box body 101; the end of the stroke sensor 401 is fixedly installed on the rotating mounting seat 302; the stroke sensor 401 is electrically connected to the stroke switch display 202, and the stroke detection component 4 set up in conjunction with the buckle cover device 2 can be used to detect the rotation stroke of the switch handle 301 in real time, and is used to obtain the corresponding rotation opening and closing size of the valve stem 104. The structure is simple, and it is more convenient to monitor the opening and closing state of the valve body 103 of this structure in real time. The structure is more reasonable, and the opening and closing state of the valve body 103 can be more concrete. At the same time, the discharge pipe 102 used can timely relieve pressure and discharge gas when leakage occurs at the connection of the valve body 103 and other connections of this structure. The discharge pipe 102 can be subsequently connected to a safe area outdoors through a hose. At the same time, the use of the stroke detection component 4 will not affect the normal rotation switch of the switch handle 301.

[0030] Embodiment 2: On the basis of embodiment 1, the opening and closing limit member 5 includes: a limit mounting block 501 and a rotating slot hole 5011, the limit mounting block 501 is fixedly mounted inside the box body 101; the limit mounting block 501 is provided with a rotating slot hole 5011; the limit mounting block 501 is an arc-shaped structure; the opening and closing limit member 5 also includes: a positioning bolt 502, the positioning bolt 502 is threadedly connected to the switch handle 301; the positioning bolt 502 is located inside the rotating slot hole 5011; a hand wheel is provided on the positioning bolt 502; the hand wheel on the positioning bolt 502 is pressed and fitted to the top surface of the limit mounting block 501, and the adopted opening and closing limit member 5 can be used for positioning the switch handle 301, which can effectively ensure the stability of the switch handle 301 after adjustment, improve the reliability of actual use, avoid some looseness problems caused by long-term use, and use It will be safer, and tightening the positioning bolt 502 can squeeze the top of the limit mounting block 501 for positioning, ensuring the boundary of use.

[0031] Working principle of this embodiment: In the utility model, the discharge pipe 102 can be subsequently connected to a safe area outdoors through a hose. At the same time, the use of the stroke detection component 4 will not affect the normal rotation of the switch handle 301. When the closed door panel 201 is rotated to open and the switch handle 301 is rotated, the stroke sensor 401 will be driven to extend and retract to detect the stroke, and the parameters can be displayed through the stroke switch display 202. After rotating and adjusting the switch handle 301, tighten the positioning bolt 502 to squeeze the top of the limit mounting block 501 for positioning.

[0032] In this article, there are a few points to note:

[0033] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0034] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0035] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A switch box device for a steam turbine, comprising a mounting box body (1), wherein a cover device (2) is connected to the mounting box body (1) via a hinge; the characteristics are: A row of switch toggle members (3) is fixedly mounted inside the installation box body (1); a row of the switch toggle members (3) is rotatably mounted with a stroke detection member (4), and the other end of the row of the stroke detection members (4) is fixedly mounted inside the installation box body (1); a row of opening and closing limit members (5) is fixedly mounted inside the installation box body (1), and a row of the switch toggle members (3) is slidably mounted on the row of the opening and closing limit members (5); the installation box body (1) comprises: a box body (101), a mounting plate (1011), a main pipeline (1012) and a discharge pipe (102); two mounting plates (1011) are mounted on the box body (101), and a row of through holes are respectively provided on the two mounting plates (1011); the main pipeline (1012) is fixedly mounted on the box body (101); and the discharge pipe (102) is fixedly mounted at the bottom of the box body (101).

2. A switch box device for a steam turbine according to claim 1, characterized in that: The mounting box body (1) further comprises: valve bodies (103) and valve stems (104); the valve bodies (103) are arranged in a row, and the valve bodies (103) in a row are respectively mounted inside the box body (101); the valve bodies (103) in a row are respectively connected to the main pipeline (1012); and the valve stems (104) are respectively mounted on the valve bodies (103) in a row.

3. A switch box device for a steam turbine according to claim 2, characterized in that: The cover-fastening device (2) comprises: a closed door panel (201) and a travel switch display (202); the closed door panel (201) is rotatably mounted on the box body (101) via a hinge; the travel switch display (202) is mounted on the closed door panel (201); and a handle is provided on the closed door panel (201).

4. A switch box device for a steam turbine according to claim 3, characterized in that: The switch toggle member (3) comprises: a switch handle (301) and a rotatable mounting seat (302); the switch handle (301) is fixedly mounted on the end of the valve stem (104); and the rotatable mounting seat (302) is rotatably mounted on the switch handle (301).

5. A switch box device for a steam turbine according to claim 4, characterized in that: The stroke detection component (4) comprises: a stroke sensor (401) and a rotatable mounting plate (402); two rotatable mounting plates (402) are rotatably mounted on the bottom of the stroke sensor (401), and the two rotatable mounting plates (402) are respectively fixedly mounted inside the box body (101); an end of the stroke sensor (401) is fixedly mounted on a rotatable mounting seat (302); and the stroke sensor (401) is electrically connected to a stroke switch display (202).

6. A switch box device for a steam turbine according to claim 4, characterized in that: The opening and closing limit member (5) comprises: a limit installation block (501) and a rotation slot (5011); the limit installation block (501) is fixedly installed inside the box body (101); the limit installation block (501) is provided with a rotation slot (5011); and the limit installation block (501) is an arc-shaped structure.

7. A switch box device for a steam turbine according to claim 6, characterized in that: The opening and closing limit member (5) further comprises: a positioning bolt (502), the positioning bolt (502) being threadedly connected to the switch handle (301); the positioning bolt (502) being located inside the rotating slot hole (5011); a hand wheel being provided on the positioning bolt (502); and the hand wheel on the positioning bolt (502) being pressed and fitted onto the top surface of the limit mounting block (501).

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