Electric power well system for fire prevention and control

Abstract

The utility model provides a fire prevention and control electric power well system which comprises a well lid mechanism and a prevention and control mechanism, the well lid mechanism is arranged at a well mouth of an electric power well, and the prevention and control mechanism is connected with the well lid mechanism; the well lid mechanism comprises a well lid mounting base and a lid body, the well lid mounting base is provided with an operation opening penetrating through a body of the well lid mounting base, the lid body is provided with a first hinge piece, the well lid mounting base is provided with a second hinge piece, and the first hinge piece is hinged to the second hinge piece; the prevention and control mechanism comprises a temperature monitoring module, a smoke monitoring module, an alarm module, a control module and a power module, the temperature monitoring module is used for monitoring the environment temperature in the electric power well, and the smoke monitoring module is used for monitoring the smoke concentration of the environment in the electric power well; the power supply module is connected with the temperature monitoring module, the smoke monitoring module, the alarm module and the control module. Only when the two elements reach the set threshold values, the control module controls the alarm module to release the fire alarm signal, so that the fire monitoring precision and accuracy are improved.

Description

Technical Field

[0001] This utility model relates to a fire prevention and control system for power wells, belonging to the field of power facility technology. Background Technology

[0002] With social development and technological advancements, power grid facilities play a crucial role in society, and underground cables are playing an increasingly important role in power supply operations. Cables are generally laid in underground cable trenches. Since each cable reel is only a certain length, approximately several hundred meters, multiple cable sections must be spliced ​​together to lay longer cable lines. The fabrication and placement of cable joints require a certain space, known as a cable manhole, whose opening is covered by a manhole cover. A fire in a cable manhole can not only cause power outages but also lead to severe property damage and casualties. Current technology typically uses temperature monitors installed on the manhole covers to monitor the temperature in the cable manhole in real time for fire prevention. However, temperature anomalies caused by non-fire-related factors such as high weather temperatures or heavy loads often trigger alarms, requiring operators to frequently check the manholes, resulting in a significant waste of manpower and resources. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a fire prevention and control power well system that addresses the shortcomings of existing technologies and improves the accuracy and precision of fire monitoring.

[0004] To solve this technical problem, this utility model provides a fire prevention system for power wells, including a well cover mechanism and a fire prevention mechanism. The well cover mechanism is installed at the wellhead of the power well, and the fire prevention mechanism is connected to the well cover mechanism. The well cover mechanism includes a well cover mounting base and a cover body. The well cover mounting base has an operating port penetrating its own body. The cover body has a first hinge, and the well cover mounting base has a second hinge. The first and second hinges are hinged together to close or open the operating port. The fire prevention mechanism includes a temperature monitoring module, a smoke monitoring module, an alarm module, a control module, and a power supply module. The well cover mounting base has a smoke monitoring channel, and the smoke monitoring module is located in the smoke monitoring channel. The end of the smoke monitoring channel has an opening and closing mechanism, which is connected to and controls the control module. The opening and closing mechanism opens the smoke monitoring channel; the temperature monitoring module, smoke monitoring module, and control module are connected, and the control module is connected to the alarm module; the temperature monitoring module is at least used to monitor the ambient temperature inside the power well, and when the ambient temperature reaches a first threshold, it feeds back a first alarm signal to the control module; the smoke monitoring module is at least used to monitor the smoke concentration inside the power well, and when the smoke concentration reaches a second threshold, it feeds back a second alarm signal to the control module; the alarm module has a first alarm mode and a second alarm mode, the first alarm mode corresponding to the first alarm signal and the second alarm signal, and the second alarm mode corresponding to the liveness signal; the power supply module is connected to the temperature monitoring module, smoke monitoring module, alarm module, and control module to provide power.

[0005] The opening and closing mechanism includes an electronic pin and an opening and closing plate, which are used to close or open the smoke monitoring channel. The manhole cover mounting base is provided with a moving groove, and the electronic pin is movably disposed in the moving groove. One end of the electronic pin is connected to the opening and closing plate. The electronic pin is connected to a control module, which is used to control the movement of the electronic pin and drive the opening and closing plate to move to close or open the smoke monitoring channel.

[0006] The manhole cover mounting base is provided with a sealed piston cavity, and a piston body is movably connected to the sealed piston cavity; a piston rod is fixed at the end of the piston body away from the sealed piston cavity; the electronic pin is connected to a first contact switch, which is at least used to control the movement of the electronic pin; the piston rod is movably abutted against or separated from the first contact switch, and a heat-conducting plate is provided between the inner wall of the operating port and the sealed piston cavity.

[0007] A filter screen is installed at the opening of the smoke monitoring channel.

[0008] The control mechanism also includes an infrared monitoring module, which is located on the cover. The infrared monitoring module is connected to the control module and the power module. The infrared monitoring module is used to monitor living organisms and to send living organism signals back to the control module.

[0009] The manhole cover mounting base is equipped with a second contact switch, which is connected to the infrared monitoring module. When the cover closes the operating opening, the cover contacts the second contact switch to control the infrared monitoring module to open.

[0010] The control mechanism also includes a voice communication module, which is located inside the cover and connected to the control module and the power module respectively. When the control module receives a live signal, it controls the voice communication module to turn on.

[0011] The control mechanism also includes a camera module, which is located inside the cover and connected to the control module and the power module respectively. When the control module receives a live signal, it controls or activates the camera module.

[0012] The temperature monitoring module is provided in multiple parts, and the multiple temperature monitoring modules are evenly distributed on the inner wall of the operating port along the circumference.

[0013] The alarm module includes a buzzer and an alarm light.

[0014] Beneficial effects: This utility model monitors the temperature and smoke concentration of the power well by setting a temperature monitoring module and a smoke monitoring module respectively. It monitors two factors in the power well: temperature and smoke concentration. Only when both factors reach the set threshold will the control module control the alarm module to release a fire alarm signal, thereby improving the accuracy and precision of fire monitoring and effectively avoiding false alarms caused by the abnormality of a single factor in non-fire conditions, thus avoiding the waste of manpower and resources. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the cover of this utility model in the open state;

[0016] Figure 2 This is a schematic diagram of the structure of the cover of this utility model in its closed state;

[0017] Figure 3 This is a partial cross-sectional structural diagram of the smoke monitoring channel of this utility model in a closed state;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This utility model Figure 4 A partial cross-sectional view of the smoke monitoring channel in the open state.

[0020] In the diagram: 100, manhole cover mounting base; 110, smoke monitoring channel; 111, filter screen; 120, moving groove; 130, sealed piston chamber; 131, piston body; 132, piston rod; 140, heat-conducting plate body; 150, operating port; 200, cover body; 310, temperature monitoring module; 320, smoke monitoring module; 330, control module; 340, alarm module; 350, power supply module; 360, infrared monitoring module; 361, second contact switch; 370, voice communication module; 380, camera module; 410, electronic pin body; 411, first contact switch; 420, opening and closing plate body. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-5As shown, this utility model provides a fire prevention system for power wells, including a well cover mechanism and a fire prevention mechanism. The well cover mechanism is installed at the wellhead of the power well and can be opened or closed. The fire prevention mechanism is connected to the well cover mechanism. The well cover mechanism includes a well cover mounting base 100 and a cover body 200. The well cover mounting base 100 has an opening 150 that can be opened and closed through its own body along its axial direction in its middle. The cover body 200 is provided with a first hinge member, and the well cover mounting base 100 is provided with a second hinge member. The first hinge member and the second hinge member are hinged together, so that the cover body 200 and the well cover mounting base 100 are hinged to close or open the opening 150. The cover body 200 is movably connected to the top of the well cover mounting base 100, thereby closing or opening the opening 150 at one end. The operating port 150 of the manhole cover mounting base 100 is opened for convenient operation. During actual installation, the outer diameter of the manhole cover mounting base 100 matches the diameter of the power well opening, allowing the manhole cover mounting base 100 to be fully accommodated within the power well. The manhole cover mounting base 100 also closes the well opening, using its own operating port 150 to replace the well opening for operation. The cover body 200 is also connected to the manhole cover mounting base 100 to close or open the well opening. The control mechanism includes a temperature monitoring module 310, a smoke monitoring module 320, an alarm module 340, a control module 330, and a power module 350. The manhole cover mounting base 100 has a smoke monitoring channel 110. The manhole cover mounting base 100 is a tubular structure or a ring. In this embodiment, the manhole cover mounting base 100 extends into the bottom of the power well and is provided with a vertically extending smoke monitoring channel 110. A smoke monitoring module 320 is located within the smoke monitoring channel 110 to monitor the smoke concentration in the power well and feeds back the monitoring signal to the control module 330. An opening and closing mechanism is provided at the end of the smoke monitoring channel 110, which is movably connected to the manhole cover mounting base 100 to close or open the smoke monitoring channel 110. The opening and closing mechanism is connected to the control module 330, controlling the opening and closing mechanism to open the smoke monitoring channel 110. The temperature monitoring module 310, the smoke monitoring module 320, and the control module 330 are connected. The control module 330 is connected to the alarm module 340. When the control module 330 monitors… When the corresponding signal is received, the control alarm module 340 activates the alarm function; the temperature monitoring module 310 is used at least to monitor the temperature of the environment inside the power well, and when the ambient temperature reaches a first threshold, it feeds back a first alarm signal to the control module 330; the smoke monitoring module 320 is used at least to monitor the smoke concentration inside the power well, and when the smoke concentration reaches a second threshold, it feeds back a second alarm signal to the control module 330; the alarm module 340 has a first alarm mode and a second alarm mode, the first alarm mode corresponds to the first alarm signal and the second alarm signal, and the second alarm mode corresponds to the liveness signal; when the control module 330 receives the first alarm signal and the second alarm signal, it controls the alarm module 340 to activate the first alarm mode;The power supply module 350 is connected to the temperature monitoring module 310, the smoke monitoring module 320, the alarm module 340, and the control module 330, and is used to provide power.

[0023] In practical operation, the temperature monitoring module 310 is activated to monitor temperature changes in the power well in real time. When the temperature in the power well reaches a set first threshold, a fire may occur. The temperature monitoring module 310 sends a first alarm signal to the control module 330. The smoke monitoring module 320 also activates to monitor the smoke concentration in the power well. If the smoke concentration in the power well reaches a set second threshold, the smoke monitoring module 320 sends a second alarm signal to the control module 330. The control module 330 only activates the alarm module 340 in the first alarm mode when it receives both the first and second alarm signals, releasing fire information to help operators extinguish the fire or provide assistance. However, if the control module 330 only receives either the first or second alarm signal, it will not activate the alarm module 340 in the first alarm mode; it will only provide real-time temperature or smoke data for operators to observe, preventing misjudgment. By setting up a temperature monitoring module 310 and a smoke monitoring module 320 to monitor the temperature and smoke concentration of the power well respectively, the control module 330 controls the alarm module 340 to release a fire alarm signal only when both of these factors reach the set threshold. This improves the accuracy and precision of fire monitoring and effectively avoids false alarms caused by abnormalities in a single factor under non-fire conditions, thus preventing the waste of manpower and resources.

[0024] The opening and closing mechanism includes an electronic pin 410 and an opening / closing plate 420, at least for closing or opening the smoke monitoring channel 110; the manhole cover mounting base 100 has a movable groove 120 around the smoke monitoring channel 110, the movable groove 120 extends vertically, the electronic pin 410 is movably disposed in the movable groove 120 and can move vertically, one end of the electronic pin 410 is fixedly connected to the opening / closing plate 420; the electronic pin 410 is connected to the control module 330, the control module... Block 330 is at least used to control the movement of the electronic pin 410 and drive the opening and closing plate 420 to close or open the smoke monitoring channel 110. When the electronic pin 410 moves upward in the vertical direction, it drives the opening and closing plate 420 to move upward, thereby closing the smoke monitoring channel 110. When the electronic pin 410 moves downward in the vertical direction, it drives the opening and closing plate 420 to move downward, thereby opening the smoke monitoring channel 110. By setting the movement of the electronic pin 410 to drive the opening and closing plate 420 to close or open the smoke monitoring channel 110, the structure is simple and easy to operate and implement. In the initial state, the opening and closing mechanism closes the smoke monitoring channel 110, and the temperature monitoring module 310 starts working to monitor the temperature in the power well. When the temperature reaches the first threshold, the temperature monitoring module 310 transmits a first alarm signal to the control module 330. After receiving the first alarm signal, the control module 330 controls the opening and closing mechanism to open the smoke monitoring channel 110, and the smoke monitoring module 320 starts working to monitor the smoke concentration in the power well. If the smoke concentration in the power well reaches the second threshold, the smoke monitoring module 320 transmits a second alarm signal to the control module 330, and then the control module 330 controls the alarm module 340 to activate the first alarm mode. If the smoke monitoring module 320 does not detect that the smoke concentration has reached the second threshold, it feeds back the result to the control module 330, and the control module 330 controls the opening and closing mechanism to close the smoke monitoring channel 110.

[0025] In the above structure, by setting an opening and closing mechanism to close or open the smoke monitoring channel 110, the smoke monitoring module 320 and the temperature monitoring module 310 do not work simultaneously under normal conditions. When the temperature in the power well reaches the first threshold, the smoke monitoring module 320 is turned on to monitor the smoke concentration in the power well. This structure can effectively save power and improve the service life of the system.

[0026] The manhole cover mounting base 100 has a sealed piston cavity 130 on its side wall, and a piston body 131 is movably connected to the sealed piston cavity 130. A piston rod 132 extending vertically is fixed to one end of the piston body 131 away from the sealed piston cavity 130. An electronic pin 410 is connected to a first contact switch 411 and is located below the piston rod 132. The first contact switch 411 is used to control the movement of the electronic pin 410. The piston rod 132 is movably in contact with or separates from the first contact switch 411. When the temperature in the power well rises, the pressure in the sealed piston cavity 130 increases, pushing the piston body 131 downward, thereby driving the piston rod 132 to move to contact the first contact switch 411, and then controlling the electronic pin 410 to move and open the smoke monitoring channel 110. By setting up a sealed piston chamber 130 and a piston body 131, a physical switch is provided for the smoke detection module 320. When the control module 330 controls the electronic pin 410 to fail, the smoke detection module 320 can open the smoke detection channel 110 by moving the piston body 131 through the heating in the power well, further improving safety. In order to better transfer heat to the sealed piston chamber 130, a heat-conducting plate 140 is provided between the inner wall of the operating port 150 and the sealed piston chamber 130.

[0027] The smoke monitoring channel 110 is equipped with a filter screen 111 at its opening, which can effectively prevent debris from entering the smoke monitoring channel 110 when it is opened, thereby blocking the smoke monitoring module 320 and reducing the monitoring accuracy of the smoke monitoring module 320, and further improving the monitoring accuracy.

[0028] The control mechanism also includes an infrared monitoring module 360, which is mounted on the cover 200 to monitor for signs of life in the power well. The infrared monitoring module 360 ​​is connected to the control module 330 and the power module 350. The infrared monitoring module 360 ​​is used to monitor for signs of life and transmits the signs of life to the control module 330. When the control module 330 receives a sign of life, it controls the alarm module 340 to activate a second alarm mode. If a sign of life is detected, the detected sign of life is transmitted to the control module 330, which then controls the alarm module 340 to activate the second alarm mode to release the sign of life, facilitating timely inspection and rescue by operators and effectively preventing people from being trapped inside the power well.

[0029] A second contact switch 361 is provided at the hinge between the manhole cover mounting base 100 and the cover body 200. The second contact switch 361 is connected to the infrared monitoring module 360 ​​to control the opening or closing of the infrared monitoring module 360. When the cover body 200 closes the operating opening 150, the cover body 200 contacts the second contact switch 361, thereby activating the infrared monitoring module 360 ​​to monitor for liveness signals. This structure ensures that the infrared monitoring module 360 ​​is activated only when the cover body 200 is in the closed operating opening 150 position, thereby reducing power waste.

[0030] The control mechanism also includes a voice communication module 370, which is located inside the cover 200 and connected to the control module 330 and the power module 350 respectively. When the control module 330 receives a live signal, it controls the voice communication module 370 to turn on.

[0031] The control mechanism also includes a camera module 380, which is located inside the cover 200 and connected to the control module 330 and the power module 350 respectively. When the control module 330 receives a live signal, the camera module 380 is activated.

[0032] When the infrared monitoring module 360 ​​detects a living person, it transmits a liveness signal to the control module 330. The control module 330 then activates the voice communication module 370 and the camera module 380. The voice communication module 370 facilitates communication with trapped personnel in the power well, enabling better rescue efforts. The camera module 380 helps operators observe the situation in the power well, further confirming the presence of trapped personnel or providing timely information about their condition.

[0033] Multiple temperature monitoring modules 310 are provided, and these modules are evenly distributed along the circumference of the operating port 150 on the inner wall of the port to improve the accuracy and comprehensiveness of temperature monitoring results. In this embodiment, the temperature monitoring modules 310 are installed on the inner wall of the operating port 150, and multiple modules are evenly spaced to improve the accuracy of temperature monitoring and provide more comprehensive monitoring of temperature changes in the power well.

[0034] The alarm module 340 includes a buzzer and an alarm light. The buzzer and the alarm light can be combined to form multiple alarm modes. For example, in the first alarm mode, the buzzer and the alarm light work simultaneously, and in the second alarm mode, only the buzzer or only the alarm light works.

[0035] It should be noted that in this embodiment of the present invention, the temperature monitoring module can be a temperature sensor, the smoke monitoring module can be a smoke sensor, the infrared monitoring module can be an infrared sensor, the control module can include a PLC controller, the camera module can include a camera, and all power modules in this embodiment of the present invention are powered by a power supply module, which can be a replaceable mobile power supply module or a power supply circuit module connected to the municipal power grid.

[0036] The power injection module, control module and its control system, temperature sensor, smoke sensor, infrared sensor, camera, buzzer, alarm light, voice communication module and other functional components used in this utility model embodiment are all known to those skilled in the art and can be obtained commercially. Therefore, their specific structures and product models are not limited here. The circuit structures between the various functional modules in this utility model are all known to those skilled in the art. Therefore, their specific circuit configuration structures will not be described in detail here.

[0037] This invention uses a temperature monitoring module and a smoke monitoring module to monitor the temperature and smoke concentration of the power well, respectively. By monitoring both temperature and smoke concentration in the power well, the control module only controls the alarm module to release a fire alarm signal when both factors reach the set threshold. This improves the accuracy and precision of fire monitoring and effectively avoids false alarms caused by abnormalities in a single factor under non-fire conditions, thus preventing the waste of manpower and resources.

[0038] The above-described embodiments of this utility model are merely illustrative examples and are not the only ones. All modifications within the scope of this utility model or equivalent to this utility model are encompassed by this utility model.

Claims

1. A fire prevention and control power well system, characterized by: The utility model provides an electric power well lid mechanism and prevention and control mechanism, the lid mechanism is arranged in the well mouth of electric power well, and the prevention and control mechanism is connected with the lid mechanism;The lid mechanism includes lid mounting seat (100) and cover (200), and the lid mounting seat (100) is equipped with the operating mouth (150) through the body, the cover (200) is equipped with the first hinged part, the lid mounting seat (100) is equipped with the second hinged part, and the first hinged part and the second hinged part are hinged to close or open the operating mouth (150);The prevention and control mechanism includes temperature monitoring module (310), smoke monitoring module (320), alarm module (340), control module (330) and power module (350), and the lid mounting seat (100) is equipped with smoke monitoring channel (110) in, and the smoke monitoring module (320) is arranged in the smoke monitoring channel (110), and the end of smoke monitoring channel (110) is equipped with opening and closing mechanism, and the opening and closing mechanism is connected with control module (330) and controls the opening and closing mechanism to open smoke monitoring channel;Temperature monitoring module (310), smoke monitoring module (320) are connected with control module (330), and control module (330) is connected with alarm module (340);The temperature monitoring module (310) is at least used for monitoring the temperature of the environment in the electric power well, and when the ambient temperature reaches the first threshold value, the first alarm signal is fed back to control module (330), and the smoke monitoring module (320) is at least used for monitoring the smoke concentration of the environment in the electric power well, and when the smoke concentration reaches the second threshold value, the second alarm signal is fed back to control module (330);The alarm module (340) has the first alarm mode and the second alarm mode, and the first alarm mode corresponds to the first alarm signal and the second alarm signal, and the second alarm mode corresponds to the living body signal;The power module (350) is connected with temperature monitoring module (310), smoke monitoring module (320), alarm module (340) and control module (330) and is used for providing power supply.

2. The fire prevention and control power well system of claim 1, wherein: The opening and closing mechanism includes electronic pin body (410) and open-close plate body (420) and is at least used for closing or opening smoke monitoring channel (110), and the lid mounting seat (100) is equipped with moving groove (120), and the electronic pin body (410) is movably arranged in the moving groove (120), and one end of the electronic pin body (410) is connected with the open-close plate body (420);The electronic pin body (410) is connected with control module (330), and control module (330) is at least used for controlling the movement of the electronic pin body (410) and drives the open-close plate body (420) to move to close or open the smoke monitoring channel (110).

3. The fire prevention and control power well system of claim 2, wherein: The well lid mounting seat (100) is provided with a sealing piston cavity (130), and the sealing piston cavity (130) is movably connected with a piston body (131); one end of the piston body (131) away from the sealing piston cavity (130) is fixed with a piston rod (132); the electronic pin body (410) is connected with a first touch switch (411), and the first touch switch (411) is used for at least controlling the movement of the electronic pin body (410); the piston rod (132) is movably abutted with or separated from the first touch switch (411), and a heat conduction sheet body (140) is arranged between the inner wall of the operation port (150) and the sealing piston cavity (130).

4. The fire prevention and control power well system of claim 1, wherein: The opening of the smoke monitoring channel (110) is provided with a filter screen (111).

5. The fire prevention and control power well system of claim 1, wherein: The control mechanism further comprises an infrared monitoring module (360) arranged on the cover body (200); the infrared monitoring module (360) is connected with the control module (330) and the power module (350), and the infrared monitoring module (360) is used for at least monitoring a living body and feeding back a living body signal to the control module (330).

6. The fire prevention and control power well system of claim 5, wherein: The well lid mounting seat (100) is provided with a second touch switch (361), and the second touch switch (361) is connected with the infrared monitoring module (360); when the cover body (200) closes the operation port (150), the cover body (200) is in contact with the second touch switch (361) to control the infrared monitoring module (360) to be turned on.

7. The fire prevention and control power well system of claim 1, wherein: The control mechanism further comprises a voice communication module (370) arranged on the inner side of the cover body (200) and connected with the control module (330) and the power module (350); when the control module (330) receives the living body signal, the voice communication module (370) is controlled to be turned on.

8. The fire prevention and control power well system of claim 1, wherein: The control mechanism further comprises a camera module (380) arranged on the inner side of the cover body (200) and connected with the control module (330) and the power module (350); when the control module (330) receives the living body signal, the camera module (380) is controlled to be turned on.

9. The fire prevention and control power well system of claim 1, wherein: The temperature monitoring module (310) is provided with a plurality of temperature monitoring modules (310) which are uniformly distributed along the circumference of the operation port (150) on the inner wall of the operation port.

10. A fire prevention and control electrical well system according to any one of claims 1-9, characterized in that: The alarm module (340) comprises a buzzer and an alarm lamp. The temperature monitoring module (310) is provided with a plurality of temperature monitoring modules (310) which are uniformly distributed along the circumference of the operation port (150) on the inner wall of the operation port.

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