Steam turbine unit steam over-temperature early warning device

Abstract

The utility model relates to steam turbine unit technical field, and disclose a steam turbine unit steam overtemperature early warning device, including the mounting seat, is provided with the connecting assembly for installing sensor in the mounting seat inside, and the connecting assembly includes the detection probe that sets up in the mounting seat inside, and the mounting seat outer wall is provided with the connecting frame, is provided with the support seat in the connecting frame inside, is provided with the plug connector in the support seat inside, and the support seat and plug connector outer wall all are provided with the butt joint hole, the connecting frame inside is provided with two through grooves, and two through groves another end all are provided with the cavity, are provided with the winding roll in the cavity inside, are provided with the connecting rope in the winding roll inside, are provided with the telescopic end in the connecting rope inside, and the connecting rope another end is provided with the connecting block, the utility model discloses the plug connector of sensor wire harness is wrapped and improves the protection effect, and through the connecting rope and pulls the plug connector to be the state of suspension and can float, can produce the vibration buffer of steam turbine, improve the stability of plug, and guarantee signal transmission effect.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine technology, specifically to a steam over-temperature early warning device for steam turbines. Background Technology

[0002] Steam turbine units are key equipment for converting heat energy into electrical energy, and are widely used in power plants, ships, and aviation. Steam over-temperature early warning devices for steam turbine units monitor steam temperature in real time, promptly issue warning signals, and trigger emergency shutdown procedures when necessary, effectively ensuring the safe operation of the steam turbine unit. The installation and use of this device is of great significance for preventing equipment damage and safety accidents caused by steam over-temperature.

[0003] When the steam over-temperature early warning device is in use, the turbine will vibrate during operation. Prolonged vibration can cause the sensor's connection harness and fixing parts to loosen or even fall off due to shaking, resulting in poor connection contact, unstable or interrupted signal transmission, affecting the stability of the connection and the signal transmission effect, affecting the information transmission of the detection results, and reducing the reliability of the detection results. Utility Model Content

[0004] The purpose of this utility model is to provide a steam over-temperature early warning device for steam turbine units, in order to solve the problem mentioned in the background art that when the steam over-temperature detection and early warning device is installed in the steam turbine, the vibration generated by the steam turbine during operation will cause the connection harness of the sensor and the joint on the fixing part to become loose or fall off over a long period of time, which will affect the stability of signal transmission, affect the signal transmission of the detection structure, and reduce the reliability of detection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steam over-temperature early warning device for a steam turbine unit, comprising a mounting base, wherein a connecting component for mounting a sensor is provided inside the mounting base, the connecting component includes a detection probe disposed inside the mounting base, a connecting frame is provided on the outer wall of the mounting base, a support base is provided inside the connecting frame, a plug is provided inside the support base, and both the outer walls of the support base and the plug are provided with mating holes; The connecting frame has two through slots inside, and each of the two through slots has a cavity at the other end. A winding roller is installed inside the cavity, and a connecting rope is installed inside the winding roller. The connecting rope has a telescopic end inside, and a connecting block is installed at the other end of the connecting rope.

[0006] Preferably, the detection probe is located inside the mounting base, the detection probe is connected to the connector via a wire harness, the connecting frame is connected to the outer wall of the mounting base via bolts, and the connecting frame has a hollow structure inside.

[0007] Preferably, the support base is located inside the connecting frame, the support base is connected to an external junction box via a wire harness, the plug is inserted into the support base, and after insertion, the plug is connected to the mating hole on the outside of the support base and is connected by bolts.

[0008] Preferably, the support base is located in the central area inside the connecting frame, and the two through slots are distributed in a ring on both sides inside the connecting frame. One end of the through slot communicates with the cavity, and the other end communicates with the inside of the connecting frame.

[0009] Preferably, the take-up roller is located inside the cavity and is rotatably connected to the inner wall of the cavity via a spring shaft. One end of the connecting rope is wound around the take-up roller, and the other end extends through the through groove into the inside of the connecting frame and is connected to the connecting block.

[0010] Preferably, the connecting block is connected to the outer wall of the support base by bolts, and the support base is pulled and supported inside the connecting frame by the connecting rope and the winding roller. The telescopic end is located inside the connecting rope and can be elastically extended and retracted.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By adding a connecting frame to the outside of the mounting base and placing both the connector and the support base inside the connecting frame, the connecting frame can protect the wire harness after it is plugged in. The wrapping also reduces the impact of vibration on the connector, improving the stability of the connector connection. Furthermore, the bolts lock the support base and the connector together, reducing the risk of loosening.

[0012] 2. By setting a connecting rope inside the connecting frame and providing tension to the connecting rope through a winding roller, and connecting the other end of the connecting rope to the outside of the support base, the support base can be suspended inside the connecting frame by winding and pulling the connecting rope, thereby suspending the connector and the support base in the air, further reducing the transmission of vibration. Furthermore, the support base can float by pulling the connecting rope, which can buffer the vibration generated by the steam turbine and improve the stability of the connector insertion, ensuring smooth signal transmission.

[0013] This invention improves the protection of the sensor wiring harness connector by wrapping it, and the connector is suspended and can float by pulling the connecting rope, which can buffer the vibration generated by the steam turbine, improve the stability of the connection, and ensure the signal transmission effect. Attached Figure Description

[0014] Figure 1 This is an overall isometric view of the present invention; Figure 2 This is a structural diagram of the connecting frame of this utility model; Figure 3 This is a structural diagram of the support base and connector of this utility model. Figure 4This is an internal sectional view of the connecting frame of this utility model.

[0015] In the diagram: 1. Mounting base; 2. Detection probe; 3. Connecting frame; 4. Support base; 401. Plug; 5. Docking hole; 6. Through groove; 601. Cavity; 7. Take-up roller; 8. Connecting rope; 801. Telescopic end; 9. Connecting block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] All devices in this application adopt conventional models in the prior art, and the control method is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field, so this application will not explain it in detail.

[0018] Please see Figures 1-3 A steam over-temperature early warning device for a steam turbine unit includes a mounting base 1. The mounting base 1 has a connecting assembly for mounting a sensor. The connecting assembly includes a detection probe 2 installed inside the mounting base 1, which can monitor the steam temperature in real time. A connecting frame 3 is provided on the outer wall of the mounting base 1. The connecting frame 3 is installed on the outside of the mounting base 1 and can enclose a support base 4 and a connector 401 within the connecting frame 3 for protection. A support base 4 is provided inside the connecting frame 3, and a connector 401 is provided inside the support base 4. The connector 401 can be plugged into the support base 4, thereby connecting the detection probe 2 to an external junction box for signal transmission. Both the support base 4 and the connector 401 have mating holes 5 on their outer walls, facilitating connection and locking via bolts after the connector 401 is plugged into the support base 4.

[0019] The detection probe 2 is located inside the mounting base 1. The detection probe 2 is connected to the connector 401 via a wire harness. The connecting frame 3 is connected to the outer wall of the mounting base 1 via bolts. The connecting frame 3 has a hollow structure inside. The support base 4 is located inside the connecting frame 3. The support base 4 is connected to the external junction box via a wire harness. The connector 401 is inserted into the support base 4. After insertion, the connector 401 and the mating hole 5 on the outside of the support base 4 are connected and connected by bolts.

[0020] Specifically: When in use, first insert the connector 401 at the end of the wire harness of the detection probe 2 into the support base 4 in the connecting frame 3, and lock the support base 4 and connector 401 by bolts and mating holes 5. Then, install the mounting base 1 inside the steam pipe of the steam turbine by bolts, so that the detection probe 2 extends into the pipe to realize real-time monitoring of the steam temperature. The connecting frame 3 can also wrap and protect the support base 4 and connector 401.

[0021] Please see Figures 2-4 The connecting frame 3 has two through slots 6 inside, which communicate with the cavity 601. The other end of each of the two through slots 6 is provided with a cavity 601. A take-up roller 7 is provided inside the cavity 601. The take-up roller 7 can rotate in the cavity 601 through a spring shaft. By rotating, the connecting rope 8 can be wound up. The connecting rope 8 is provided inside the take-up roller 7. One end of the connecting rope 8 is wrapped around the take-up roller 7, and the other end is connected to the outer wall of the support base 4 with the connecting block 9, so that the connecting block 9 and the take-up roller 7 are linked. The connecting rope 8 is provided with a telescopic end 801 inside, which can elastically extend and retract. The other end of the connecting rope 8 is provided with a connecting block 9.

[0022] The support base 4 is located in the central area inside the connecting frame 3. Two through slots 6 are distributed in a ring on both sides inside the connecting frame 3. One end of the through slot 6 communicates with the cavity 601, and the other end communicates with the inside of the connecting frame 3. The take-up roller 7 is located inside the cavity 601 and is rotatably connected to the inner wall of the cavity 601 through a spring shaft. One end of the connecting rope 8 is wound around the take-up roller 7, and the other end extends through the through slot 6 into the inside of the connecting frame 3 and is connected to the connecting block 9. The connecting block 9 is connected to the outer wall of the support base 4 by bolts. The support base 4 is pulled and supported inside the connecting frame 3 by the tightening of the connecting rope 8 in conjunction with the take-up roller 7. The telescopic end 801 is located inside the connecting rope 8 and can be elastically extended and retracted.

[0023] Specifically: By connecting the connecting block 9 to the outer wall of the support base 4, the support base 4, in conjunction with the connecting rope 8 and the winding roller 7, is linked. The winding roller 7 on both sides of the connecting frame 3 tightens the connecting rope 8, thereby pulling the support base 4 on both sides, so that the support base 4 is suspended inside the connecting frame 3. The suspension of the support base 4 reduces the impact of vibration transmission and improves the stability of the insertion. At the same time, the elastic characteristics of the telescopic end 801, combined with the winding pressure of the winding roller 7, allow the support base 4 to float within the connecting frame 3, thereby buffering vibration, further ensuring the firmness of the insertion, and guaranteeing the stability and reliability of signal transmission.

[0024] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steam over-temperature early warning device for a steam turbine unit, comprising a mounting base (1), wherein the mounting base (1) is provided with a connecting assembly for mounting a sensor, characterized in that: The connecting assembly includes a detection probe (2) disposed inside the mounting base (1), a connecting frame (3) disposed on the outer wall of the mounting base (1), a support base (4) disposed inside the connecting frame (3), a plug (401) disposed inside the support base (4), and a mating hole (5) disposed on the outer wall of both the support base (4) and the plug (401). The connecting frame (3) has two through slots (6) inside, and each of the two through slots (6) has a cavity (601) at the other end. A take-up roller (7) is provided inside the cavity (601), a connecting rope (8) is provided inside the take-up roller (7), a telescopic end (801) is provided inside the connecting rope (8), and a connecting block (9) is provided at the other end of the connecting rope (8).

2. The steam over-temperature early warning device for a steam turbine unit according to claim 1, characterized in that: The detection probe (2) is located inside the mounting base (1). The detection probe (2) is connected to the connector (401) via a wire harness. The connecting frame (3) is connected to the outer wall of the mounting base (1) via bolts. The connecting frame (3) has a hollow structure inside.

3. The steam over-temperature early warning device for a steam turbine unit according to claim 2, characterized in that: The support base (4) is located inside the connecting frame (3). The support base (4) is connected to the external junction box through a wire harness. The plug (401) is inserted into the support base (4). After insertion, the plug (401) is connected to the mating hole (5) on the outside of the support base (4) and is connected by bolts.

4. The steam over-temperature early warning device for a steam turbine unit according to claim 1, characterized in that: The support base (4) is located in the central area inside the connecting frame (3). The two through slots (6) are distributed in a ring on both sides inside the connecting frame (3). One end of the through slot (6) is connected to the cavity (601), and the other end is connected to the inside of the connecting frame (3).

5. The steam over-temperature early warning device for a steam turbine unit according to claim 4, characterized in that: The take-up roller (7) is located inside the cavity (601) and is rotatably connected to the inner wall of the cavity (601) via a spring shaft. One end of the connecting rope (8) is wrapped around the take-up roller (7), and the other end extends through the through groove (6) into the inside of the connecting frame (3) and is connected to the connecting block (9).

6. The steam over-temperature early warning device for a steam turbine unit according to claim 4, characterized in that: The connecting block (9) is connected to the outer wall of the support seat (4) by bolts. The support seat (4) is pulled and supported inside the connecting frame (3) by the connecting rope (8) and the winding roller (7). The telescopic end (801) is located inside the connecting rope (8) and can be elastically telescopic.

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