Electric power distribution room roof water accumulation alarm device

Abstract

The utility model discloses an electrical building power distribution room roof ponding alarm device, contain first power supply, relay, a plurality of positive electrode, a plurality of negative electrode, second power supply, relay first normally open contact and alarm, positive electrode and negative electrode adopt linear structure and positive electrode and negative electrode are mutually parallel and are arranged on the roof of electrical building power distribution room, a plurality of positive electrode and a plurality of negative electrode follow along horizontal direction equal interval distribution and follow one positive electrode, one negative electrode's order cyclically alternate distribution, one end of a plurality of positive electrode all are connected with relay one end, the other end of relay is connected with the positive pole of first power supply, one end of a plurality of negative electrode all is connected with the negative pole of first power supply, and second power supply, relay first normally open contact and alarm constitute loop. The utility model has realized real -time monitoring to the roof ponding condition of electrical building power distribution room, and when ponding occurs, triggers the alarm rapidly.

Description

Technical Field

[0001] This utility model relates to an alarm device, specifically an alarm device for water accumulation on the roof of an electrical building's power distribution room, belonging to the field of alarm technology. Background Technology

[0002] As a crucial component of the power system, the electrical distribution room in an electrical building is vital for ensuring the stability of power supply. The top floor of such a building often houses office areas with water pipes, sewage pipes, fire hydrants, and air conditioning pipes. Water leaks can seep into the ground and, if not detected promptly, can penetrate the electrical cabinets in the distribution room below, potentially causing short circuits, moisture damage, and even electrical accidents, disrupting the entire power system and endangering personnel safety. Currently, monitoring methods for water accumulation on the roof of distribution rooms are relatively limited, relying heavily on manual inspections. This method suffers from low efficiency and poor real-time performance, failing to promptly detect potential water accumulation hazards and thus failing to meet the requirements for safe operation of the distribution room. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an alarm device for water accumulation on the roof of the electrical building's power distribution room, so as to realize the automatic detection and alarm of water accumulation on the roof of the electrical building's power distribution room.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An alarm device for water accumulation on the roof of an electrical building's power distribution room includes a first power source, a relay, several positive electrodes, several negative electrodes, a second power source, a first normally open contact of the relay, and an alarm. The positive and negative electrodes are arranged in a straight line and are parallel to each other on the roof of the electrical building's power distribution room. The several positive and negative electrodes are distributed at equal intervals along the horizontal direction and are arranged in a cyclical alternation according to the order of one positive electrode and one negative electrode. One end of each of the several positive electrodes is connected to one end of the relay, and the other end of the relay is connected to the positive terminal of the first power source. One end of each of the several negative electrodes is connected to the negative terminal of the first power source. The second power source, the first normally open contact of the relay, and the alarm form a circuit.

[0005] Furthermore, the first power supply uses a 24V DC power supply.

[0006] Furthermore, the length of the straight structure of the positive and negative electrodes is a, the spacing between adjacent electrodes of the positive and negative electrodes is c, and the total width of the positive and negative electrodes along the spacing direction is b = (2n-1)*c, where n is the number of positive electrodes and the number of positive electrodes is equal to the number of negative electrodes. Then the total area s of the rectangular array formed by the positive and negative electrodes is s = a*b = a*(2n-1)*c. The total area s of the rectangular array formed by the positive and negative electrodes matches the area of ​​water accumulation to be detected on the roof of the electrical building's power distribution room.

[0007] Furthermore, the distance c between adjacent electrodes of the plurality of positive electrodes and the plurality of negative electrodes is 2.5-3.5 cm.

[0008] Furthermore, the second power supply is an AC power supply. The neutral wire of the second power supply is connected to one end of the alarm, the live wire of the second power supply is connected to one end of the first normally open contact of the relay, and the other end of the first normally open contact of the relay is connected to the other end of the alarm.

[0009] Furthermore, the alarm is an audible and visual alarm.

[0010] Furthermore, it also includes a second normally open contact of a relay, a PLC, and a main control room computer. The two ends of the second normally open contact of the relay are connected to the PLC, and the PLC is connected to the main control room computer.

[0011] Furthermore, the PLC is connected to the main control room computer via Ethernet.

[0012] Compared with the prior art, this utility model has the following advantages and effects: This utility model provides a water accumulation alarm device for the roof of the electrical building distribution room. Through a simple and effective circuit design, it realizes real-time monitoring of water accumulation on the roof of the electrical building distribution room, and quickly triggers an alarm when water accumulation occurs. At the same time, the alarm signal is transmitted to the main control room so that the main control personnel can take timely measures to ensure the safe operation of the distribution room. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a water accumulation alarm device for the roof of an electrical building's power distribution room, according to this utility model.

[0014] Figure 2 This is a diagram illustrating the usage status of a water accumulation alarm device for the roof of an electrical building's power distribution room, based on this utility model. Detailed Implementation

[0015] To elaborate on the technical solutions adopted by this utility model to achieve the intended technical objectives, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Furthermore, the technical means or technical features in the embodiments of this utility model can be replaced without creative effort. The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 As shown, this utility model discloses a water accumulation alarm device for the roof of an electrical building distribution room, comprising a first power supply 1, a relay 2, several positive electrodes 3, several negative electrodes 4, a second power supply 5, a first normally open contact 6 of the relay, and an alarm 7. The positive electrodes 3 and negative electrodes 4 are arranged in a straight line and are parallel to each other on the roof of the electrical building distribution room. The several positive electrodes 3 and several negative electrodes 4 are distributed at equal intervals along the horizontal direction and are arranged in a cyclical alternation according to the order of one positive electrode 3 and one negative electrode 4. One end of each of the several positive electrodes 3 is connected to one end of the relay 2, and the other end of the relay 2 is connected to the positive terminal of the first power supply 1. One end of each of the several negative electrodes 4 is connected to the negative terminal of the first power supply 1. The second power supply 5, the first normally open contact 6 of the relay, and the alarm 7 form a circuit.

[0017] The first power supply 1 uses a 24V DC power supply, which is within a safe range and will not cause harm to people.

[0018] The length of the straight structure of positive electrode 3 and negative electrode 4 is a, the spacing between adjacent electrodes of several positive electrodes 3 and several negative electrodes 4 is c, and the total width of several positive electrodes 3 and several negative electrodes 4 along the spacing direction is b = (2n-1)*c, where n is the number of positive electrodes 3 and the number of positive electrodes 3 is equal to the number of negative electrodes 4. Then the total area s of the rectangular array formed by several positive electrodes 3 and several negative electrodes 4 is s = a*b = a*(2n-1)*c. The total area s of the rectangular array formed by several positive electrodes 3 and several negative electrodes 4 matches the area of ​​water accumulation to be detected on the roof of the electrical building's power distribution room.

[0019] The spacing c between adjacent electrodes of the plurality of positive electrodes 3 and the plurality of negative electrodes 4 is 2.5-3.5 cm. Experimental testing showed that this spacing range is relatively sensitive and accurate for detecting water accumulation when using a 24V DC power supply.

[0020] The second power supply 5 is an AC power supply. The neutral wire of the second power supply 5 is connected to one end of the alarm 7, and the live wire of the second power supply 5 is connected to one end of the first normally open contact 6 of the relay. The other end of the first normally open contact 6 of the relay is connected to the other end of the alarm 7.

[0021] Among them, alarm 7 is an audible and visual alarm that can emit both sound and light alarms at the same time.

[0022] The electrical building power distribution room roof water accumulation alarm device of this utility model also includes a second normally open contact 8 of a relay, a PLC 9 and a main control room computer 10. The two ends of the second normally open contact 8 of the relay are connected to the PLC 9, and the PLC 9 is connected to the main control room computer 10.

[0023] PLC9 is connected to the main control room computer 10 via Ethernet.

[0024] In the electrical building power distribution room roof water accumulation alarm device of this utility model, a rectangular array 11 composed of several positive electrodes 3 and several negative electrodes 4 is set in the roof of the electrical building power distribution room, and the first power supply 1, relay 2, second power supply 5, relay first normally open contact 6, alarm 7, relay second normally open contact 8 and PLC 9 are set in the electrical control box 12.

[0025] The working principle of the electrical building power distribution room roof water accumulation alarm device of this utility model is as follows: When water accumulates on the roof of the electrical building power distribution room, the local water accumulation will cause the adjacent positive electrode 3 and negative electrode 4 to be connected by the water, thereby energizing the relay 2. As a result, the first normally open contact 6 and the second normally open contact 8 of the relay will both close. The circuit formed by the second power supply 5, the first normally open contact 6 of the relay and the alarm 7 will be completed, thereby causing the alarm 7 to emit an audible and visual alarm to remind the personnel on site. At the same time, the second normally open contact 8 of the relay will close, causing the PLC 9 to detect the water accumulation signal. The PLC 9 will upload the detected water accumulation signal to the main control room computer 10 via Ethernet and display it on the monitor of the main control computer 10, reminding the main control personnel to deal with the water accumulation situation on the roof of the power distribution room in a timely manner.

[0026] This invention utilizes exposed positive and negative electrodes laid on the roof of the electrical building's power distribution room as water accumulation detection elements. It leverages the conductivity of water to detect water accumulation, resulting in a simple circuit structure, low cost, and ease of installation and maintenance. Upon detecting water accumulation, this invention quickly triggers an audible and visual alarm, promptly alerting on-site personnel. Simultaneously, the alarm signal is transmitted to the main control room computer, allowing the control personnel to monitor the water accumulation situation on the roof of the power distribution room in real time. This facilitates timely intervention and effectively prevents accidents such as damage to electrical equipment caused by water accumulation, improving the safety and reliability of the power distribution room's operation. This invention employs a PLC controller and Ethernet for communication with the main control room computer, ensuring accurate and rapid transmission of alarm signals to the main control room, thus improving the response speed and reliability of the entire alarm system.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A water accumulation alarm device for the roof of an electrical building's power distribution room, characterized in that: It includes a first power supply, a relay, several positive electrodes, several negative electrodes, a second power supply, a first normally open contact of the relay, and an alarm. The positive and negative electrodes adopt a straight structure and are arranged parallel to each other on the roof of the electrical building's power distribution room. The several positive and negative electrodes are distributed at equal intervals along the horizontal direction and are arranged in a cyclical alternation in the order of one positive electrode and one negative electrode. One end of each of the several positive electrodes is connected to one end of the relay, and the other end of the relay is connected to the positive terminal of the first power supply. One end of each of the several negative electrodes is connected to the negative terminal of the first power supply. The second power supply, the first normally open contact of the relay, and the alarm form a circuit.

2. The electrical building distribution room roof water accumulation alarm device according to claim 1, characterized in that: The first power supply uses a 24V DC power supply.

3. The electrical building distribution room roof water accumulation alarm device according to claim 1, characterized in that: The length of the straight structure of the positive and negative electrodes is a, the spacing between adjacent electrodes of the positive and negative electrodes is c, and the total width of the positive and negative electrodes along the spacing direction is b = (2n-1)*c, where n is the number of positive electrodes and the number of positive electrodes is equal to the number of negative electrodes. Then the total area s of the rectangular array formed by the positive and negative electrodes is s = a*b = a*(2n-1)*c. The total area s of the rectangular array formed by the positive and negative electrodes matches the area of ​​water accumulation to be detected on the roof of the electrical building's power distribution room.

4. The electrical building distribution room roof water accumulation alarm device according to claim 3, characterized in that: The distance c between adjacent electrodes of the plurality of positive electrodes and the plurality of negative electrodes is 2.5-3.5 cm.

5. The electrical building distribution room roof water accumulation alarm device according to claim 1, characterized in that: The second power supply is an AC power supply. The neutral wire of the second power supply is connected to one end of the alarm, and the live wire of the second power supply is connected to one end of the first normally open contact of the relay. The other end of the first normally open contact of the relay is connected to the other end of the alarm.

6. The electrical building distribution room roof water accumulation alarm device according to claim 5, characterized in that: The alarm is an audible and visual alarm.

7. The electrical building distribution room roof water accumulation alarm device according to claim 1, characterized in that: It also includes a second normally open contact of a relay, a PLC, and a main control room computer. The two ends of the second normally open contact of the relay are connected to the PLC, and the PLC is connected to the main control room computer.

8. The electrical building distribution room roof water accumulation alarm device according to claim 7, characterized in that: The PLC is connected to the computer in the main control room via Ethernet.

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