Tail water mandoor fastening device

Abstract

The utility model relates to the technical field of hydropower station related equipment, in particular to a tail water mandoor fastening device, which mainly comprises a fastening U-shaped ring, a fastening bolt arranged on the fastening U-shaped ring, stress sensors arranged at the bending positions of the fastening U-shaped ring respectively, a data processing device and a communication device. And the data processing device is electrically connected with the stress sensor. By means of the structure, when the fastening bolt deforms or breaks, separation of the tail water entering the door frame of the man door can be limited again through the fastening U-shaped ring, time can be delayed as much as possible, workers can arrive at the site, accidents are avoided, stress data are collected in real time through the stress sensor, and when abnormity occurs, the tail water entering the door frame can be prevented from being separated. Workers can respond in time, and further expansion of accidents is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydropower station related equipment, in particular to a tailwater inlet door fastening device. Background Art

[0002] The tailwater inlet door is used for personnel to enter the turbine for inspection and operation during unit maintenance and other emergency situations. The existing tailwater inlet door fastening method often uses bolts and door frames to fix them. During operation, the tailwater inlet door vibrates greatly, which may cause bolt breakage. The current structure may cause more serious consequences when bolt breakage occurs, and the bolt defects cannot be discovered and treated in the first time. Utility Model Content

[0003] The utility model aims to provide a tailwater inlet door fastening device. When the bolts of the current structure are broken, serious consequences may occur, and the problem of bolt defects cannot be discovered immediately.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] A tailwater entry door fastening device comprises a fastening U-shaped ring and a fastening bolt arranged on the fastening U-shaped ring, wherein one end of the fastening U-shaped ring is provided with a threaded hole, and the fastening bolt is threadedly connected with the fastening U-shaped ring through the threaded hole;

[0006] Stress sensors are respectively provided at the bends of the fastening U-shaped ring, and the stress sensors are used to collect stress data of the bends of the fastening U-shaped ring;

[0007] It also includes a data processing device, a power supply unit and a communication device. The data processing device is electrically connected to the stress sensor. The data processing device is electrically connected to the communication device. The communication device is used to send the data collected by the stress sensor to a remote control terminal. The data processing device and the communication device are electrically connected to the power supply unit.

[0008] The structure provided by the utility model mainly includes a fastening U-shaped ring and a fastening bolt arranged on the fastening U-shaped ring, and stress sensors are respectively arranged at the bending parts of the fastening U-shaped ring, and also includes a data processing device and a communication device, and the data processing device is electrically connected to the stress sensor. Through the above structure, when the fastening bolt is deformed or broken, the fastening U-shaped ring can be used to restrict the separation of the tail water entering the door frame again, and the time can be delayed as much as possible until the staff arrives at the scene to avoid accidents. Secondly, the stress data is collected in real time by the stress sensor, and transmitted to the communication device after being processed by the data processing device, and then sent to the staff by the communication device, so that the staff can know the current stress condition of the fastening U-shaped ring at any time. When an abnormality occurs, the staff can respond in time to avoid further expansion of the accident.

[0009] In one embodiment of the utility model, an auxiliary clamping device is further included, and the auxiliary clamping device is connected to the data processing device and is used to increase the fastening strength of the U-shaped ring.

[0010] In one embodiment of the utility model, the auxiliary clamping device includes telescopic devices symmetrically arranged on both sides of the fastening U-shaped ring, and the two telescopic devices are connected by a connecting rod. The connecting rod passes through both sides of the fastening U-shaped ring and is fixedly connected to the headquarters on the inner side of the fastening U-shaped ring.

[0011] In one embodiment of the utility model, the telescopic device includes a power device and a support column, one end of the power device is connected to the connecting rod, and the other end is connected to the support column, and the power device is used to drive the support column to move up and down.

[0012] In one embodiment of the utility model, the power device includes a telescopic motor and a processor, the telescopic motor is connected to the support column, the power switch of the telescopic motor is connected to the processor through a relay, the processor is connected to the data processing device, and the power supply unit is electrically connected to the telescopic motor and the processor for powering the entire power device.

[0013] In an embodiment of the present invention, a nut is further provided between the fastening bolt and the fastening U-shaped ring.

[0014] In an embodiment of the present invention, a gasket is further provided between the nut and the fastening U-shaped ring.

[0015] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0016] The structure provided by the utility model mainly includes a fastening U-shaped ring and a fastening bolt arranged on the fastening U-shaped ring, and stress sensors are respectively arranged at the bending parts of the fastening U-shaped ring, and also includes a data processing device and a communication device, and the data processing device is electrically connected to the stress sensor. Through the above structure, when the fastening bolt is deformed or broken, the fastening U-shaped ring can be used to restrict the separation of the tail water entering the door frame again, and the time can be delayed as much as possible until the staff arrives at the scene to avoid accidents. Secondly, the stress data is collected in real time by the stress sensor, and transmitted to the communication device after being processed by the data processing device, and then sent to the staff by the communication device, so that the staff can know the current stress condition of the fastening U-shaped ring at any time. When an abnormality occurs, the staff can respond in time to avoid further expansion of the accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the fastening U-shaped ring and the fastening bolt structure of the utility model;

[0019] Figure 2 A schematic diagram of the structure of an auxiliary support device is provided for the utility model;

[0020] Figure 3 For this utility model Figure 2 Top view of the .

[0021] Icons: 1-fastening U-shaped ring, 2-door frame, 3-gasket, 4-nut, 5-fastening bolt, 6-stress sensor, 7-connecting rod, 8-telescopic motor, 9-support column, 10-data processing device, 11-power supply unit, 12-communication device. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Please refer to Figure 1-Figure 3The utility model provides a tailwater inlet door fastening device, comprising a fastening U-shaped ring 1 and a fastening bolt 5 arranged on the fastening U-shaped ring 1. A threaded hole is opened at one end of the fastening U-shaped ring 1, and the fastening bolt 5 is threadedly connected with the fastening U-shaped ring 1 through the threaded hole.

[0024] Among them, the fastening U-shaped ring 1 as a whole is a U-shaped structure bent twice, the fastening bolt 5 can adopt a conventional bolt, and a nut 4 and a gasket 3 are also arranged between the fastening bolt 5 and the fastening U-shaped ring 1. The gasket 3 is arranged between the nut 4 and the fastening U-shaped ring 1, and the fastening structure between the fastening U-shaped ring 1 and the fastening bolt 5 is strengthened by the nut 4 and the gasket 3.

[0025] During installation, the fastening U-shaped ring 1 is inserted into the door frame 2 of the tailwater inlet door. In the prior art, a threaded hole is correspondingly opened on the door frame 2 of the tailwater inlet door, and then the fastening bolt 5 is simultaneously passed through the fastening U-shaped ring 1 and the tailwater inlet door to complete the fixation of the foundation.

[0026] Stress sensors 6 are respectively provided at the bending parts of the fastening U-shaped ring 1, and the stress sensors 6 are used to collect stress data of the bending parts of the fastening U-shaped ring 1, wherein the model of the stress sensor 6 is preferably Chengke 120-3AA.

[0027] It also includes a data processing device 10, a power supply unit 11 and a communication device 12. The data processing device 10 is electrically connected to the stress sensor 6. The data processing device 10 is electrically connected to the communication device 12. The communication device 12 is used to send the data collected by the stress sensor 6 to the remote control end. The data processing device 10 and the communication device 12 are electrically connected to the power supply unit 11.

[0028] The power supply unit 11 provides basic power supply to the data processing device 10 and the communication device 12 , wherein the data processing device 10 is mainly used to convert the data collected by the stress sensor 6 into a digital signal that can be transmitted and send it through the communication device 12 .

[0029] The structure provided by the utility model mainly includes a fastening U-shaped ring 1 and a fastening bolt 5 arranged on the fastening U-shaped ring 1, and stress sensors 6 are respectively arranged at the bending parts of the fastening U-shaped ring 1, and also includes a data processing device 10 and a communication device 12, and the data processing device 10 is electrically connected to the stress sensor 6. Through the above structure, when the fastening bolt 5 is deformed or broken, the fastening U-shaped ring 1 can be used to restrict the separation of the tail water entering the door frame 2 again, and the time can be delayed as much as possible until the staff arrives at the scene to avoid the occurrence of accidents. Secondly, the stress data is collected in real time by the stress sensor 6, and transmitted to the communication device 12 after being processed by the data processing device 10, and the communication device 12 is sent to the hands of the staff, so that the staff can know the current stress condition of the fastening U-shaped ring 1 at any time, and when an abnormality occurs, the staff can respond in time to avoid further expansion of the accident.

[0030] In one embodiment of the present invention, an auxiliary clamping device is further included. The auxiliary clamping device is connected to the data processing device 10 and is used to increase the fastening strength of the U-shaped ring 1.

[0031] Specifically, the auxiliary clamping device includes a telescopic device symmetrically arranged on both sides of the fastening U-shaped ring 1, and the two telescopic devices are connected by a connecting rod 7. The connecting rod 7 passes through both sides of the fastening U-shaped ring 1, and is fixedly connected to the headquarters on the inner side of the fastening U-shaped ring 1. The telescopic device includes a power device and a support column 9. One end of the power device is connected to the connecting rod 7, and the other end is connected to the support column 9. The power device is used to drive the support column 9 to move up and down.

[0032] Secondly, the power device includes a telescopic motor 8 and a processor. The telescopic motor 8 is connected to the support column 9. The power switch of the telescopic motor 8 is connected to the processor through a relay. The processor is connected to the data processing device 10. The power supply unit 11 is electrically connected to the telescopic motor 8 and the processor for powering the entire power device.

[0033] In the above device, the processor can adopt a conventional PLC processor, and the stress threshold and power-on time are set in the processor. When the stress value transmitted by the data processing device 10 received by the processor exceeds the stress threshold, a signal for starting the telescopic motor 8 is sent to open the control circuit of the telescopic motor 8. The telescopic motor 8 starts to operate according to the set power-on time, driving the support column 9 to move downward and contact the outer side of the fastening U-shaped ring 1, further preventing the fastening U-shaped ring 1 from being stretched open, and transferring part of the squeezed force to the connecting rod 7, thereby achieving the effect of auxiliary support.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tailwater inlet door fastening device, characterized in that: It comprises a fastening U-shaped ring (1) and a fastening bolt (5) arranged on the fastening U-shaped ring (1), one end of the fastening U-shaped ring (1) is provided with a threaded hole, and the fastening bolt (5) is threadedly connected to the fastening U-shaped ring (1) through the threaded hole; Stress sensors (6) are respectively provided at the bending parts of the fastening U-shaped ring (1), and the stress sensors (6) are used to collect stress data of the bending parts of the fastening U-shaped ring (1); The device also comprises a data processing device (10), a power supply unit (11) and a communication device (12); the data processing device (10) is electrically connected to the stress sensor (6); the data processing device (10) is electrically connected to the communication device (12); the communication device (12) is used to send data collected by the stress sensor (6) to a remote control terminal; the data processing device (10) and the communication device (12) are electrically connected to the power supply unit (11).

2. A tailwater inlet door fastening device according to claim 1, characterized in that: It also comprises an auxiliary clamping device, which is connected to the data processing device (10) and is used to increase the fastening strength of the U-shaped ring (1).

3. A tailwater inlet door fastening device according to claim 2, characterized in that: The auxiliary clamping device comprises telescopic devices symmetrically arranged on both sides of the fastening U-shaped ring (1), and the two telescopic devices are connected by a connecting rod (7). The connecting rod (7) passes through both sides of the fastening U-shaped ring (1) and is fixedly connected to the inner side of the fastening U-shaped ring (1) with the headquarters.

4. A tailwater inlet door fastening device according to claim 3, characterized in that: The telescopic device comprises a power device and a support column (9); one end of the power device is connected to the connecting rod (7), and the other end is connected to the support column (9); the power device is used to drive the support column (9) to move up and down.

5. A tailwater inlet door fastening device according to claim 4, characterized in that: The power device comprises a telescopic motor (8) and a processor, the telescopic motor (8) is connected to the support column (9), a power switch of the telescopic motor (8) is connected to the processor via a relay, the processor is connected to the data processing device (10), and the power supply unit (11) is electrically connected to the telescopic motor (8) and the processor for supplying power to the entire power device.

6. A tailwater inlet door fastening device according to claim 1, characterized in that: A nut (4) is also provided between the fastening bolt (5) and the fastening U-shaped ring (1).

7. A tailwater inlet door fastening device according to claim 6, characterized in that: A gasket (3) is also provided between the nut (4) and the fastening U-shaped ring (1).

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