Water leakage detection and water cut-off device for thermoplastic prepreg impregnation system

Abstract

The invention provides a thermoplastic prepreg impregnation system water leakage detection water cut-off device which comprises an automatic control system, a water containing tray and a water leakage detection sensor, an impregnation tank is located on the water containing tray, the water leakage detection sensor surrounds the impregnation tank and is coiled in the water containing tray, and the automatic control system is communicated with the water leakage detection sensor through a circuit. A normally-open electromagnetic water valve in the automatic control system injects water into the gum dipping tank through a water inlet pipe, the water leakage detection sensor is in a non-conducting state when no water leaks, and the water leakage detection sensor is conducted due to soaking when water leaks, and the normally-open electromagnetic water valve is powered on or powered off. Under the condition that an operator is not on site, it can be ensured that the water leakage problem is controlled in time, equipment damage and other economic losses caused by water leakage are effectively prevented, the safety and stability of a gum dipping system are improved, and the production cost and the maintenance cost are greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of industrial automation and mechanical equipment technology, and relates to a water leakage detection and shut-off device for a thermoplastic prepreg impregnation system. Background Technology

[0002] In the daily operation of a dipping system, the proper functioning of the dipping tank is crucial. To ensure the effective dipping process, the tank requires a continuous supply of an appropriate amount of water. However, over time, the system's pipes may age and become damaged, or joints may loosen due to frequent use. These problems can lead to leaks in the dipping tank. If leaks are not addressed promptly, they will result in wasted water resources. More seriously, they may damage equipment and even disrupt the normal operation of the entire production line, leading to incalculable economic losses. Summary of the Invention

[0003] In view of this, the present invention provides a water leakage detection and shut-off device for a thermoplastic prepreg impregnation system, which can monitor the leakage situation in real time and take corresponding safety measures.

[0004] The technical solution adopted in this invention is as follows:

[0005] A water leakage detection and shut-off device for a thermoplastic prepreg impregnation system includes a frame 7, an automatic control system, a water inlet pipe 13, a water holding tray 11, and a water leakage detection sensor 12.

[0006] The water-holding tray 11 is located below the impregnation tank 14, which sits on the water-holding tray 11 to catch leaked water and prevent overflow. The leak detection sensor 12 is coiled around the impregnation tank 14 inside the water-holding tray 11. When there is no leak, the leak detection sensor 12 is in a non-conductive state. When a leak occurs, water is stored in the water-holding tray 11, and the leak detection sensor 12 becomes conductive due to being wetted.

[0007] The frame 7 is an aluminum frame surrounded by an outer panel, and the automatic control system is installed inside the frame 7. The automatic control system includes an electrical component mounting plate 1, a normally open solenoid water valve mounting plate 2, a leak detection controller 3, a relay 4, a transformer 5, a normally open solenoid water valve 6, a power interface 8, a power switch button 9, and an alarm light 10. The electrical component mounting plate 1 is fixed to the upper inner side of the frame 7, the normally open solenoid water valve mounting plate 2 is fixed to the bottom inner side of the frame 7, the leak detection controller 3, the relay 4, and the transformer 5 are mounted on the electrical component mounting plate 1, the normally open solenoid water valve 6 is mounted on the normally open solenoid water valve mounting plate 2, and the power interface 8, the power switch 9, and the alarm light 10 are mounted on the outer panel of the frame 7.

[0008] The relay 4 has a coil and two normally open contacts. The leak detection controller 3 has a built-in buzzer, two power nodes, two input points, and two normally open output points. The power interface 8 is used to connect to the power supply. It is connected to the transformer 5 via the power switch button 9. The output of the transformer 5 is connected to the two power nodes of the leak detection controller 3 to supply power to the leak detection controller 3. The two normally open output points of the leak detection controller 3 are connected to the negative terminals of the relay 4 coil and the negative terminal of the transformer 5 output, respectively. The two input points of the leak detection controller 3 are connected to the leak detection sensor 12. The positive terminal of the relay 4 coil is connected to the positive terminal of the transformer 5 output. The normally open electromagnetic water valve 6 is connected in parallel with the alarm light 10 to the output of the transformer 5, and is also connected in series with the two contacts of the relay 4. One end of the normally open electromagnetic water valve 6 is connected to the water source, and the other end is connected to the water inlet of the impregnation tank 14 through the water inlet pipe 13. When the normally open electromagnetic water valve 6 is energized, it cuts off the water supply.

[0009] During normal use, the water leakage detection sensor 12 inside the water tray 11 is in the off state, and there is no signal input at the two input points of the water leakage detection controller 3. Therefore, the normally open output point of the water leakage detection controller 3 is not closed, the coil of the relay 4 is not energized, the two normally open contacts of the relay 4 are not closed, and neither the normally open solenoid water valve 6 nor the alarm light 10 is energized. Therefore, the normally open solenoid water valve 6 normally supplies water, and the impregnation system works normally. When water leakage occurs in the impregnation tank 14, the water tray 11 catches the leaked water to prevent overflow. The water leakage detection sensor 12 inside the water tray 11 is affected by water immersion. The circuit is activated, sending a signal to the leak detection controller 3. After receiving the signal, the two normally open output points of the leak detection controller 3 close, and its built-in buzzer alarm sounds. The coil of the relay 4 is energized, and its two normally open contacts close. The normally open solenoid water valve 6 and the alarm light 10 are energized, and the normally open solenoid water valve 6 cuts off the water supply, while the alarm light 10 lights up. After the leak problem is resolved, the water accumulated in the water tray 11 is cleaned, and the leak detection sensor 12 is dried. After drying, the two wires of the leak detection sensor 12 are returned to the disconnected state.

[0010] The beneficial effects of this invention are:

[0011] This invention incorporates advanced sensor technology to monitor water level changes around the impregnation tank in real time, ensuring a timely response to leaks in the impregnation system. Once an abnormal rise in water level is detected, indicating a leak, the device automatically triggers a water shut-off mechanism, quickly closing the water circuit and cutting off the water supply. This ensures timely control of leaks even when operators are not present, effectively preventing equipment damage and other economic losses caused by leaks. This invention not only improves the safety and stability of the impregnation system but also significantly reduces production and maintenance costs, creating greater economic benefits while minimizing water waste. Attached Figure Description

[0012] Figure 1 This is the electrical schematic diagram of the present invention;

[0013] Figure 2 This is the assembly drawing of the present invention;

[0014] Figure 3 This is a diagram of the frame's appearance.

[0015] Figure 4 This is a front view of the interior of an automatic control system.

[0016] Figure 5 This is an axonometric view of the interior of an automatic control system.

[0017] Figure 6 This is the wiring diagram for the detection of the present invention;

[0018] In the diagram: 1 Electrical component mounting plate; 2 Normally open solenoid water valve mounting plate; 3 Leakage detection controller; 4 Relay; 5 Transformer; 6 Normally open solenoid water valve; 7 Frame; 8 Power interface; 9 Power switch button; 10 Alarm light; 11 Water tray; 12 Leakage detection sensor; 13 Water inlet pipe; 14 Impregnation tank. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] A water leakage detection and shut-off device for a thermoplastic prepreg impregnation system includes a frame 7, an automatic control system, a water inlet pipe 13, a water tray 11, and a leakage detection sensor 12, such as... Figure 2 .

[0021] The water-holding tray 11 is positioned below the impregnation tank 14, which sits on the tray. It catches leaked water to prevent overflow. A leak detection sensor 12 is coiled around the impregnation tank 14 within the water-holding tray 11. When there is no leak, the leak detection sensor 12 is in a non-conductive state. When a leak occurs, water accumulates in the tray 11, and the leak detection sensor 12 becomes conductive due to the moisture. Figure 6 .

[0022] like Figures 3 to 5The frame 7 is an aluminum frame made of 30×30 European standard aluminum profiles, fixed with M5 T-nuts, and surrounded by a panel. The automatic control system is installed inside the frame 7. The automatic control system includes an electrical component mounting plate 1, a normally open solenoid water valve mounting plate 2, a leak detection controller 3, a relay 4, a transformer 5, a normally open solenoid water valve 6, a power interface 8, a power switch button 9, and an alarm light 10. The electrical component mounting plate 1 is fixed to the upper inner side of the frame 7 with hexagonal screws and T-nuts. The normally open solenoid water valve mounting plate 2 is fixed to the bottom inner side of the frame 7 with hexagonal screws and T-nuts. The leak detection controller 3, relay 4, and DC24V transformer 5 are mounted on the electrical component mounting plate 1. The normally open solenoid water valve 6 is mounted on the normally open solenoid water valve mounting plate 2. The power interface 8, power switch 9, and alarm light 10 are mounted on the outer panel of the frame 7.

[0023] The relay 4 has a coil and two normally open contacts. The leak detection controller 3 has a built-in buzzer alarm and two power supply nodes VCC and GND, two input points S1 and S2, and two normally open output points NO and COM. The power interface 8 is used to connect to the power supply, and it is connected to the transformer 5 via the power switch button 9. The output of the transformer 5 is connected to the two power supply nodes VCC and GND of the leak detection controller 3 to supply power to the leak detection controller 3. The two normally open output points NO and COM of the leak detection controller 3 are connected to the power supply nodes VCC and GND. COM is connected to the negative terminal of the relay 4 coil and the negative terminal of the transformer 5 output, respectively. The two input points S1 and S2 of the leak detection controller 3 are connected to the beginning and end of the leak detection sensor 12, respectively. The positive terminal of the relay 4 coil is connected to the positive terminal of the transformer 5 output. The normally open solenoid water valve 6 is connected in parallel with the alarm light 10 to the output terminal of the transformer 5, and is also connected in series with the two contacts of the relay 4. One end of the normally open solenoid water valve 6 is connected to the water source, and the other end is connected to the inlet of the impregnation tank 14 through the water inlet pipe 13. The normally open solenoid water valve 6 is used to control the water flow; when energized, it cuts off the water supply. Figure 1 .

[0024] During use, connect the power interface 8 to the power supply. Connect one end of the normally open solenoid water valve 6 to the water source, and the other end to the water inlet of the impregnation tank 14 through the water inlet pipe 13 to provide the necessary water for the impregnation process. Press the power switch button 9 to supply power, and the water detection and water cut-off device enters the standby state. Turn on the water source, and the water flows into the impregnation tank 14 through the normally open solenoid water valve 6. Ensure that the water pipe connection is tight to prevent water leakage due to loosening or detachment. The thermoplastic prepreg impregnation system starts working. Under normal conditions, the water leakage detection sensor 12 in the water tray 11 is in the off state, and there is no signal input at the two input points S1 and S2 of the water leakage detection controller 3. Therefore, the normally open output points NO and COM of the water leakage detection controller 3 are not closed, the coil of the relay 4 is not energized, the two normally open contacts of the relay 4 are not closed, and the normally open solenoid water valve 6 and the alarm light 10 are not activated. When powered on, the normally open solenoid water valve 6 flows normally, and the impregnation system works normally. When the impregnation tank 14 leaks, the water tray 11 catches the leaking water to prevent overflow. The leak detection sensor 12 inside the water tray 11 is connected due to water immersion, and sends a signal to the leak detection controller 3. After receiving the signal, the two normally open output points NO and COM of the leak detection controller 3 are closed, and its built-in buzzer alarm sounds. The coil of the relay 4 is energized and its two normally open contacts are closed. The normally open solenoid water valve 6 and the alarm light 10 are energized, and the normally open solenoid water valve 6 cuts off the water supply. At the same time, the alarm light 10 lights up. After the leak problem is resolved, the water accumulated in the water tray 11 is cleaned, and the leak detection sensor 12 is dried. After drying, the two wires of the leak detection sensor 12 are disconnected again.

[0025] The above description is only a partial embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A water leakage detection and shut-off device for a thermoplastic prepreg impregnation system, characterized in that, The system includes an automatic control system, a water tray (11), and a leak detection sensor (12). The impregnation tank (14) is located on the water tray (11), and the leak detection sensor (12) is coiled inside the water tray (11). The automatic control system and the leak detection sensor (12) are connected by a circuit. The normally open solenoid water valve (6) in the automatic control system injects water into the impregnation tank through the water inlet pipe (13). When there is no leakage, the leak detection sensor (12) is in a non-conductive state. When there is a leakage, the leak detection sensor (12) is conductive due to being wetted, and the normally open solenoid water valve (6) is energized to cut off the water flow.

2. The water leakage detection and shut-off device for a thermoplastic prepreg impregnation system according to claim 1, characterized in that, The automatic control system includes a leak detection controller (3), a relay (4), a transformer (5), a normally open solenoid water valve (6), a power interface (8), and a power switch button (9); the relay (4) has a coil and two normally open contacts, and the leak detection controller (3) has two power nodes, two input points, and two normally open output points; the power interface (8) is used to connect to the power supply, and it is connected to the transformer (5) via the power switch button (9). The two power nodes of the leak detection controller (3) are connected to the output terminals of the transformer (5), and the leak detection controller (6) 3) The two normally open output points are connected to the negative pole of the coil of the relay (4) and the negative pole of the output terminal of the transformer (5) respectively. The two input points of the leakage detection controller (3) are connected to the beginning and end of the leakage detection sensor (12) respectively. The positive pole of the coil of the relay (4) is connected to the positive pole of the output terminal of the transformer (5). The normally open electromagnetic water valve (6) is connected to the output terminal of the transformer (5) and connected in series with the two contacts of the relay (4). One end of the normally open electromagnetic water valve (6) is connected to the water source, and the other end is connected to the water inlet of the impregnation tank (14) through the water inlet pipe (13). When the normally open electromagnetic water valve (6) is energized, the water inlet is cut off.

3. The water leakage detection and shut-off device for a thermoplastic prepreg impregnation system according to claim 2, characterized in that, The automatic control system also includes an alarm light (10), which is connected in parallel with the normally open electromagnetic water valve (6) to the output terminal of the transformer (5), and is also connected in series with the two contacts of the relay (4).

4. The water leakage detection and shut-off device for a thermoplastic prepreg impregnation system according to claim 2, characterized in that, The aforementioned leak detection controller (3) comes with a built-in buzzer alarm.

5. A water leakage detection and shut-off device for a thermoplastic prepreg impregnation system according to any one of claims 1-4, characterized in that, The water leakage detection and shut-off device also includes a frame (7), and the automatic control system is fixed inside the frame (7).

6. The water leakage detection and shut-off device for a thermoplastic prepreg impregnation system according to claim 5, wherein the frame (7) is an aluminum frame.

7. A water leakage detection and shut-off device for a thermoplastic prepreg impregnation system according to claim 1, characterized in that, The leakage detection sensor (12) is coiled around the impregnation tank (14) inside the water tray (11).

8. A water leakage detection and shut-off device for a thermoplastic prepreg impregnation system according to claim 1, 2, or 7, characterized in that, Under normal conditions, the water leakage detection sensor (12) in the water tray (11) is in the off state, and there is no signal input at the two input points of the water leakage detection controller (3). Therefore, the normally open output point of the water leakage detection controller (3) is not closed, the coil of the relay (4) is not energized, the two normally open contacts of the relay (4) are not closed, and the normally open solenoid water valve (6) is not energized. Therefore, the normally open solenoid water valve (6) normally supplies water, and the impregnation system works normally. When water leakage occurs in the impregnation tank (14), the water tray (11) catches the leaked water to prevent overflow. The water leakage detection sensor (12) conducts due to water immersion and sends a signal to the water leakage detection controller (3). After receiving the signal, the two normally open output points of the water leakage detection controller (3) close. The coil of the relay (4) is energized and its two normally open contacts close. The normally open solenoid water valve (6) is energized and shuts off the water supply.

9. A water leakage detection and shut-off device for a thermoplastic prepreg impregnation system according to claim 3 or 4, characterized in that, Under normal conditions, the water leakage detection sensor (12) inside the water tray (11) is in the off state, and there is no signal input at the two input points of the water leakage detection controller (3). Therefore, the normally open output point of the water leakage detection controller (3) is not closed, the coil of the relay (4) is not energized, the two normally open contacts of the relay (4) are not closed, and neither the normally open solenoid water valve (6) nor the alarm light (10) is energized. Therefore, the normally open solenoid water valve (6) normally supplies water, and the impregnation system works normally. When water leakage occurs in the impregnation tank (14), the water tray (11) catches the leak. To prevent water from overflowing, the water leakage detection sensor (12) inside the water tray (11) is connected by two wires due to water immersion, and sends a signal to the water leakage detection controller (3); after receiving the signal at the two input points of the water leakage detection controller (3), the two normally open output points close, and at the same time, its built-in buzzer alarm sounds; the coil of the relay (4) is energized and its two normally open contacts close; the normally open electromagnetic water valve (6) and the alarm light (10) are energized, the normally open electromagnetic water valve (6) stops the water flow, and at the same time, the alarm light (10) lights up.

10. A water leakage detection and shut-off device for a thermoplastic prepreg impregnation system according to claim 8 or 9, characterized in that, After the water leakage problem is resolved, the water in the water tray (11) is cleaned up and the water leakage detection sensor (12) is dried. After drying, the two wires of the water leakage detection sensor (12) are disconnected again.

Images