Emergency early warning structure for internal and external leakage of power station valve

Abstract

The utility model discloses a power station valve internal and external leakage emergency early warning structure which comprises a valve body, a water inlet, a water outlet and an early warning mechanism, the water inlet is installed at one end of the valve body, the water outlet is installed at the end, away from the water inlet, of the valve body, and the early warning mechanism is arranged on the inner side of the valve body. A groove is formed in the bottom of an inner cavity of the valve body, and a limiting bolt transversely penetrates through one side of the connecting flange plate. According to the emergency early warning structure for internal and external leakage of the power station valve, whether internal and external leakage happens to the valve or not is judged according to the principle that the internal flow of the same pipeline is the same, and the flow of one side of a water inlet and the flow of one side of a water outlet are detected through a flow sensor; when the flow sensor and the pressure sensor detect that the amount of water passing through the water inlet and the water outlet is abnormal, warning and early warning are carried out in time through the signal transmitter, the signal receiver and the buzzer, so that workers can carry out maintenance and inspection conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency warning equipment, in particular to an emergency warning structure for internal and external leakage of power station valves. Background Art

[0002] Power station valves are the main components of the safe operation of power stations. Their importance is self-evident. However, external leakage is often prone to occur during operation. If not handled properly, the consequences will be extremely serious. Valves are an important part of various pipe network systems. Once leakage occurs, it will not only affect the equipment to a certain extent, but also endanger the lives and property of the people. Power station valves connect the main and auxiliary equipment and systems of the power station, and their importance is beyond doubt.

[0003] For example, application number CN201910327389.3 discloses a debris flow disaster warning device for a hydropower station, which can provide accurate warning of debris flow disasters in the hydropower station area, thereby reducing the losses caused by debris flow disasters. When the valves in the power station are in use, it is necessary to check the sealing of the valves at all times. Valve leakage will cause the loss of media (such as gas, liquid, etc.), and there is a hidden danger of causing waste of resources and economic losses. However, the existing method of detecting valve leakage generally detects from the outside, and it is necessary to inspect the valve every once in a while. It is not possible to inspect from the inside of the valve, and the valve cannot be inspected at all times. At the same time, it does not have an early warning function.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an emergency warning structure for internal and external leakage of power station valves is proposed to achieve a more practical purpose. Utility Model Content

[0005] The utility model aims to provide an emergency warning structure for internal and external leakage of power station valves, so as to solve the problem in the above background technology that the valve cannot be detected from the inside and the valve cannot be detected at all times.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an emergency warning structure for internal and external leakage of a power station valve, comprising a valve body, a water inlet, a water outlet and a warning mechanism, wherein the water inlet is installed at one end of the valve body, and the water outlet is installed at the end of the valve body away from the water inlet, and the warning mechanism is arranged on the inner side of the valve body, and the warning mechanism comprises a flow sensor and an information processing module, the flow sensor is arranged in two groups, and the two groups of flow sensors are respectively installed between the water inlet and the water outlet, the flow sensor is electrically connected to the information processing module, the information processing module is electrically connected to a battery, and the information processing module is electrically connected to a pressure sensor, the information processing module comprises a PLC controller and a circuit board, the PLC controller is electrically connected to the circuit board through a wire, and the circuit board is electrically connected to a signal transmitter and a signal receiver through a wire, the circuit board is electrically connected to a wiring port through a wire, and the circuit board is electrically connected to a buzzer through a wire.

[0007] Furthermore, the valve body includes a valve plate and a screw, the valve plate is threadedly installed on the outer diameter surface of the screw, and the screw longitudinally penetrates the inner cavity of the valve body, a storage plate chamber is arranged above the valve plate, a first gear is arranged on the outer diameter surface of the screw, and the first gear is meshingly connected with the second gear, and the second gear is installed at the output end of the servo motor, a handle is arranged at one end of the screw, and sealing rings are arranged on the contact surfaces of the valve plate and the screw with the storage plate chamber and the valve body, the screw is limitably connected to the valve body through a bearing, and a connecting flange is arranged on one side of the water inlet and the water outlet.

[0008] Furthermore, the two groups of flow sensors are placed in the inner cavity of the valve body, and the inner wall of the flow sensor has the same diameter as the inner wall of the valve body. The flow sensor and the pressure sensor are electrically connected to the PLC controller, and the PLC controller is electrically connected to the signal transmitter, signal receiver and buzzer.

[0009] Furthermore, the valve plate and the screw rod form a threaded connection structure, the first gear and the second gear rod form a gear meshing structure, and the screw rod longitudinally penetrates the center of the valve plate.

[0010] Furthermore, the screw is connected to the inner diameter surface of the bearing in a limiting manner, the valve body is connected to the outer diameter surface of the bearing in a limiting manner, and the screw forms a rotating structure that rotates around the center of the bearing through the bearing and the valve body.

[0011] Furthermore, the water inlet forms a connecting structure with the water outlet through the valve body and the flow sensor, a groove is provided at the bottom of the inner cavity of the valve body, and the width of the groove is the same as the thickness of the valve plate, and a limiting bolt is provided transversely through one side of the connecting flange.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the emergency warning structure for internal and external leakage of the power station valve is based on the principle that the flow rate inside the same pipeline is the same, so as to judge whether the valve has internal and external leakage, wherein the flow rate on one side of the water inlet and the water outlet is detected by a flow sensor, and multiple groups of warning mechanisms are provided, so as to judge the amount of water passing through the water inlet and the water outlet, and the amount of water passing through the water inlet and the water outlet is monitored by a signal transmitter and a signal receiver, and when the flow sensor and the pressure sensor detect that the amount of water passing through the water inlet and the water outlet is abnormal, a warning warning is promptly issued through the signal transmitter, the signal receiver and the buzzer, so that the personnel at work can perform maintenance and inspection;

[0013] The emergency warning structure for internal and external leakage of the power station valve is based on the principle of the same internal flow rate in the same pipeline, so as to judge whether the valve has internal and external leakage. The flow sensor and the pressure sensor are installed on the inner wall of the inner cavity of the valve body, so as to detect the amount of water passing through the inner wall of the inner cavity of the valve body through the flow sensor and the pressure sensor. When the detection results of the flow sensor and the pressure sensor are abnormal, the detection results are transmitted to the PLC controller through the wire in time, and the signal is transmitted to the signal transmitter and the signal receiver through the circuit board and the wire through the PLC controller, and then the signal is transmitted to the outside world, so as to timely inspect and repair the valve, and use the buzzer to sound an alarm in time, so that this device has the effect of emergency warning function for internal and external leakage of the valve;

[0014] The emergency warning structure for internal and external leakage of the power station valve drives the screw to rotate through the movable handle, and then drives the valve plate to move up and down through the screw, so as to control whether the valve body is on or off through the valve plate, the screw and the handle, and the servo motor is electrically connected to the PLC controller, and the servo motor is started. The servo motor drives the first gear to rotate through the second gear, and then the screw is rotated, and when in use, the water inlet and the water outlet are connected to the water pipe limit in advance through the connecting flange to allow water to flow through, so that the device can detect the emergency warning function of internal and external leakage of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of a power station valve internal and external leakage emergency warning structure circuit breaker of the utility model;

[0016] Figure 2 This is a side view structural schematic diagram of an emergency warning structural information processing module for internal and external leakage of power station valves according to the utility model;

[0017] Figure 3 This is a schematic diagram of the front view structure of an emergency warning structure passage for internal and external leakage of a power station valve according to the utility model;

[0018] Figure 4This is a schematic diagram of the valve body connection structure of an emergency warning structure for internal and external leakage of a power station valve according to the utility model.

[0019] In the figure: 1. valve body; 101. valve plate; 102. screw; 103. plate storage chamber; 104. first gear; 105. second gear; 106. servo motor; 107. handle; 108. sealing ring; 2. water inlet; 3. water outlet; 4. early warning mechanism; 401. flow sensor; 402. information processing module; 403. battery; 404. pressure sensor; 405. PLC controller; 406. circuit board; 407. signal transmitter; 408. signal receiver; 409. wiring port; 4010. buzzer; 5. connecting flange. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: an emergency warning structure for internal and external leakage of a power station valve, comprising a valve body 1, a water inlet 2, a water outlet 3 and a warning mechanism 4, wherein the water inlet 2 is installed at one end of the valve body 1, and the water outlet 3 is installed at the end of the valve body 1 away from the water inlet 2, and the warning mechanism 4 is arranged on the inner side of the valve body 1, and the warning mechanism 4 comprises a flow sensor 401 and an information processing module 402, wherein the flow sensor 401 is arranged in two groups, and the two groups of flow sensors 401 are respectively installed between the water inlet 2 and the water outlet 3, wherein the flow sensor 401 is specifically a sensor of the model KR-WJ intelligent vortex street or its It has a sensor for detecting flow rate, the flow sensor 401 is electrically connected to the information processing module 402, the information processing module 402 is electrically connected to the battery 403, and the information processing module 402 is electrically connected to the pressure sensor 404, the information processing module 402 includes a PLC controller 405 and a circuit board 406, the PLC controller 405 is electrically connected to the circuit board 406 by wires, and the circuit board 406 is electrically connected to a signal transmitter 407 and a signal receiver 408 by wires, the circuit board 406 is electrically connected to a wiring port 409 by wires, and the circuit board 406 is electrically connected to a buzzer 4010 by wires.

[0022] The valve body 1 includes a valve plate 101 and a screw 102. The valve plate 101 is threadedly mounted on the outer diameter surface of the screw 102, and the screw 102 longitudinally penetrates the inner cavity of the valve body 1. A plate storage chamber 103 is mounted above the valve plate 101. A first gear 104 is mounted on the outer diameter surface of the screw 102, and the first gear 104 is meshedly connected with a second gear 105, and the second gear 105 is mounted on the output end of a servo motor 106. A handle 107 is disposed at one end of the screw 102, and sealing rings 108 are mounted on the contact surfaces of the valve plate 101 and the screw 102 with the plate storage chamber 103 and the valve body 1. The screw 102 is limitedly connected to the valve body 1 by a bearing, and a connecting flange 5 is disposed on one side of the water inlet 2 and the water outlet 3.

[0023] The device is based on the principle that the flow rate in the same pipeline is the same, and thus determines whether the valve has internal or external leakage. The flow sensor 401 and the pressure sensor 404 are installed on the inner wall of the inner cavity of the valve body 1, so that the flow sensor 401 and the pressure sensor 404 can be used to detect the amount of water passing through the inner wall of the inner cavity of the valve body 1, and the flow sensor 401 and the pressure sensor 404 can be used to detect the amount of water passing through the inner wall of the valve body 1. When the detection results of the flow sensor 401 and the pressure sensor 404 are abnormal, the detection results are promptly transmitted to the PLC controller 405 by wires, and then the signal is transmitted to the signal transmitter 407 and the signal receiver 408 by the PLC controller 405 by the circuit board 406 and the wire, and then the signal is transmitted to the outside world, so that the valve can be inspected and repaired in time, and an alarm is promptly issued through the buzzer 4010, so that the device has the effect of emergency warning function of internal and external leakage of the valve;

[0024] Two groups of flow sensors 401 are placed in the inner cavity of the valve body 1, and the inner wall of the flow sensor 401 has the same diameter as the inner wall of the valve body 1. The flow sensor 401 and the pressure sensor 404 are electrically connected to the PLC controller 405, and the PLC controller 405 is electrically connected to the signal transmitter 407, the signal receiver 408 and the buzzer 4010. The valve plate 101 and the screw 102 form a threaded connection structure, the first gear 104 and the second gear 105 form a gear meshing structure, the screw 102 longitudinally penetrates the center of the valve plate 101, the screw 102 is limitedly connected to the inner diameter surface of the bearing, the valve body 1 is limitedly connected to the outer diameter surface of the bearing, and the screw 102 forms a rotating structure that rotates around the center of the bearing with the valve body 1 through the bearing.

[0025] The water inlet 2 is connected to the water outlet 3 through the valve body 1 and the flow sensor 401. A groove is provided at the bottom of the inner cavity of the valve body 1, and the width of the groove is the same as the thickness of the valve plate 101. A limit bolt is transversely penetrated on one side of the connecting flange 5, wherein the movable handle 107 is used to drive the screw 102 to rotate, and the screw 102 is used to drive the valve plate 101 to move up and down, so that the valve plate 101, the screw 102 and the handle 107 can be used to control whether the valve body 1 is on and off, and the servo motor 106 is electrically connected to the PLC controller 405, and the servo motor 106 is started. The servo motor 106 drives the first gear 104 to rotate by the second gear 105, so that the screw 102 rotates, and when in use, the connecting flange 5 is used in advance to limit the water inlet 2 and the water outlet 3 to the water pipe, so as to facilitate the water flow structure, so that this device can detect the emergency warning function of internal and external leakage of the valve.

[0026] Working principle: When using an emergency warning structure for internal and external leakage of power station valves, the water inlet 2 and the water outlet 3 are connected to the water pipe limiter by connecting flange 5 to allow water to flow through. The device determines whether the valve has internal and external leakage based on the principle of the same flow rate inside the same pipe. The flow sensor 401 and the pressure sensor 404 are installed on the inner wall of the inner cavity of the valve body 1, so that the flow sensor 401 and the pressure sensor 404 can be used to detect the amount of water passing through the inner wall of the inner cavity of the valve body 1. The screw 102 is driven to rotate by the movable handle 107, so that the screw 102 drives the valve plate 101 to move up and down. The valve plate 101, the screw 102 and the handle 107 are used to control whether the valve body 1 is on or off, and the servo The motor 106 is electrically connected to the PLC controller 405, and the servo motor 106 is started. The servo motor 106 uses the second gear 105 to drive the first gear 104 to rotate, and then the screw 102 is rotated to control whether the valve body 1 is on or off. When the detection results of the flow sensor 401 and the pressure sensor 404 are abnormal, the detection results are promptly transmitted to the PLC controller 405 using wires, and then the PLC controller 405 transmits the signal through the circuit board 406 and the wire to the signal transmitter 407 and the signal receiver 408, and transmits the signal to the outside world, so as to timely inspect and repair the valve, and use the buzzer 4010 to sound an alarm in time, so that this device has the effect of an emergency warning function for internal and external leakage of the valve.

Claims

1. An emergency warning structure for internal and external leakage of a power station valve, comprising a valve body (1), a water inlet (2), a water outlet (3) and a warning mechanism (4), characterized in that: The water inlet (2) is mounted on one end of the valve body (1), and a water outlet (3) is mounted on the end of the valve body (1) away from the water inlet (2). An early warning mechanism (4) is arranged on the inner side of the valve body (1), and the early warning mechanism (4) comprises a flow sensor (401) and an information processing module (402). Two groups of the flow sensors (401) are arranged, and the two groups of flow sensors (401) are respectively mounted between the water inlet (2) and the water outlet (3). The flow sensors (401) are electrically connected to the information processing module (402), and the information processing module (402) is electrically connected to the water inlet (2) and the water outlet (3). The information processing module (402) is electrically connected to a battery (403), and the information processing module (402) is electrically connected to a pressure sensor (404). The information processing module (402) includes a PLC controller (405) and a circuit board (406). The PLC controller (405) is electrically connected to the circuit board (406) through a wire, and the circuit board (406) is electrically connected to a signal transmitter (407) and a signal receiver (408) through a wire. The circuit board (406) is electrically connected to a wiring port (409) through a wire, and the circuit board (406) is electrically connected to a buzzer (4010) through a wire.

2. According to claim 1, the emergency warning structure for internal and external leakage of power station valves is characterized by: The valve body (1) comprises a valve plate (101) and a screw rod (102), wherein the valve plate (101) is threadedly mounted on the outer diameter surface of the screw rod (102), and the screw rod (102) longitudinally penetrates the inner cavity of the valve body (1), a plate storage chamber (103) is arranged above the valve plate (101), a first gear (104) is arranged on the outer diameter surface of the screw rod (102), and the first gear (104) is meshedly connected with a second gear (105), and The second gear (105) is installed at the output end of the servo motor (106), a handle (107) is provided at one end of the screw rod (102), and the contact surfaces between the valve plate (101) and the screw rod (102) and the storage plate chamber (103) and the valve body (1) are provided with sealing rings (108), the screw rod (102) is limitedly connected to the valve body (1) through a bearing, and a connecting flange (5) is provided on one side of the water inlet (2) and the water outlet (3).

3. The emergency warning structure for internal and external leakage of power station valves according to claim 2 is characterized by: The two groups of flow sensors (401) are placed in the inner cavity of the valve body (1), and the inner wall of the flow sensor (401) has the same diameter as the inner wall of the valve body (1). The flow sensor (401) and the pressure sensor (404) are electrically connected to the PLC controller (405), and the PLC controller (405) is electrically connected to the signal transmitter (407), the signal receiver (408) and the buzzer (4010).

4. The emergency warning structure for internal and external leakage of power station valves according to claim 3 is characterized by: The valve plate (101) and the screw rod (102) form a threaded connection structure, the first gear (104) and the second gear (105) form a gear meshing structure, and the screw rod (102) longitudinally penetrates the center of the valve plate (101).

5. The emergency warning structure for internal and external leakage of power station valves according to claim 4 is characterized by: The screw (102) is position-limitedly connected to the inner diameter surface of the bearing, and the valve body (1) is position-limitedly connected to the outer diameter surface of the bearing. The screw (102) and the valve body (1) form a rotating structure that rotates around the center of the bearing through the bearing.

6. The emergency warning structure for internal and external leakage of power station valves according to claim 5, characterized in that: The water inlet (2) forms a communication structure with the water outlet (3) through the valve body (1) and the flow sensor (401); a groove is provided at the bottom of the inner cavity of the valve body (1), and the width of the groove is the same as the thickness of the valve plate (101); and a limiting bolt is provided transversely through one side of the connecting flange (5).

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