Transformer cabinet fire alarm and disposal device
By using infrared temperature measurement sensors and flame detectors in the transformer cabinet, combined with the microcontroller controller and motor system, the precise positioning and extinguishing of the transformer's ignition point is achieved, which solves the problems of low fire extinguishing accuracy and slow response of the induction equipment in the existing technology, and improves the fire extinguishing efficiency and safety.
Patent Information
- Application Number
- CN202421287248.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-06
AI Technical Summary
The existing transformer cabinet fire-fighting equipment is not very accurate when extinguishing fires, and the fire-fighting consumables are seriously wasted, and the induction equipment is slow to respond, resulting in serious damage to the dry transformer.
An infrared temperature measuring sensor and flame detector are used to cooperate with a microcontroller controller to drive the nozzle to rotate and adjust the angle through the motor to accurately locate and extinguish the transformer's ignition point.
It improves the accuracy and efficiency of fire extinguishing, reduces the waste of fire-fighting consumables, and can promptly detect high-temperature combustion points and quickly respond to fire extinguishing.
Smart Images
Figure CN222918006U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of transformer cabinet fire-fighting equipment, and specifically relates to a transformer cabinet fire alarm and disposal device. Background Technique
[0002] A transformer cabinet is a special cabinet that installs a fixed transformer in a certain position. Its function is to provide protection for the transformer to prevent damage to the transformer caused by the external environment. At the same time, the transformer cabinet also provides a certain degree of safety protection to prevent accidents such as electric shock to personnel.
[0003] In order to ensure the safety of the transformer cabinet, fire-fighting equipment is added in the transformer cabinet in the prior art. During the use of the existing fire-fighting equipment for dry-type transformer cabinets, the applicant found that: in the existing transformer cabinet fire-fighting equipment, an encircling spraying method is often used to spray the fire-extinguishing medium, and the positions of the nozzles are fixed, so it is impossible to accurately aim at the ignition point for fire extinguishing, resulting in low fire-extinguishing accuracy. At the same time, it will also cause a waste of a large amount of fire-fighting consumables. In addition, the existing induction equipment generally uses a smoke alarm and a temperature sensor to detect the ignition of the transformer. The fire needs to reach a certain degree to generate high temperature and thick smoke before the alarm and the fire-fighting equipment can be started, resulting in a slow reaction and serious damage to the dry-type transformer. To solve the above-mentioned problems, a transformer cabinet fire alarm and disposal device is proposed. Content of the Utility Model
[0004] The purpose of the utility model is to provide a transformer cabinet fire alarm and disposal device to solve the above-mentioned problems.
[0005] The technical solution adopted by the utility model is as follows: a transformer cabinet fire alarm and disposal device, including a cabinet body, a dry-type transformer is installed in the cabinet body, and four infrared temperature sensors are arranged inside the cabinet body;
[0006] An installation plate is fixedly installed on the upper part of the cabinet body. A hollow rotating shaft is rotatably installed on the installation plate. A conical gear is fixedly connected to the upper part of the hollow rotating shaft. A motor I is fixedly installed on the top surface of the installation plate. The motor I is connected to a main conical gear through an output shaft. The main conical gear meshes with the conical gear. A rotating plate is fixedly connected to the lower part of the hollow rotating shaft. A vertical plate is fixedly installed on one side of the rotating plate. A motor II is fixedly installed on the vertical plate. The motor II is connected to a nozzle through an output shaft. The nozzle is connected to a carbon dioxide supply mechanism for fire extinguishing, and a flame detector is fixedly installed on the nozzle;
[0007] A single-chip microcomputer controller is installed on the cabinet body. The single-chip microcomputer controller is electrically connected to the infrared temperature sensor, the motor I, the motor II, the flame detector and the carbon dioxide supply mechanism.
[0008] In a preferred embodiment, the four infrared temperature sensors are installed at the four corners of the upper part of the inner cavity of the cabinet.
[0009] In a preferred embodiment, an audible and visual alarm is installed on the top of the cabinet, and the audible and visual alarm is electrically connected to the single-chip microcomputer controller.
[0010] In a preferred embodiment, the carbon dioxide supply mechanism includes a fire cabinet, a main pipeline and branch pipelines. The main pipeline is fixedly installed on the cabinet and the mounting plate, the branch pipelines are fixedly installed on the rotating plate, a carbon dioxide gas cylinder is arranged in the fire cabinet, a connecting pipe is fixedly connected to the air inlet side of the main pipeline, the air inlet end of the connecting pipe is detachably connected to the air outlet of the carbon dioxide gas cylinder, the air outlet end of the main pipeline is rotationally and hermetically connected to the upper end of the inner cavity of the hollow rotating shaft, the air inlet end of the branch pipeline is fixedly connected to the lower part of the hollow rotating shaft, the branch pipeline is communicated with the hollow inner cavity of the hollow rotating shaft, a high-pressure resistant hose is fixedly connected to the air outlet side of the branch pipeline, and the air outlet end of the high-pressure resistant hose is connected to the nozzle.
[0011] In a preferred embodiment, a solenoid valve is arranged on the connecting pipe, and the solenoid valve is electrically connected to the single-chip microcomputer controller.
[0012] In a preferred embodiment, a cabinet door is arranged at the front of the fire cabinet, and the cabinet door is hinged to the fire cabinet.
[0013] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:
[0014] 1. In the present utility model, the first motor drives the nozzle to rotate around the upper part of the dry-type transformer to adjust the position, and then the second motor drives the nozzle to adjust the angle up and down, so as to accurately and quickly aim at the ignition point of the transformer for fire extinguishing. The fire extinguishing accuracy is good. Compared with the existing surrounding spraying fire extinguishing, the fire extinguishing accuracy rate is high, and at the same time, the waste of fire extinguishing consumables is avoided.
[0015] 2. In the present utility model, an infrared detection sensor is used to detect the temperature of the dry-type transformer, and the ignition point can be monitored in time and accurately. Then, it is combined with the flame detector on the nozzle to perform secondary auxiliary positioning of the flame, so as to detect the high-temperature combustion point in time and accurately. The reaction is fast, so that a more accurate ignition point position can be provided for the fire extinguishing equipment, and then the fire extinguishing equipment can be assisted to extinguish the fire in time and quickly. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a front view structural schematic diagram of the present utility model;
[0017] Figure 2 It is a top view structural schematic diagram of the present utility model;
[0018] Figure 3 This is a schematic structural diagram of the rotating plate rotating assembly of the present utility model;
[0019] Figure 4 This is a three-dimensional schematic diagram of the nozzle angle adjustment assembly of the present utility model.
[0020] Markings in the figure: 1 - cabinet body, 2 - infrared temperature sensor, 3 - mounting plate, 4 - hollow rotating shaft, 5 - driven bevel gear, 6 - motor 1, 7 - main bevel gear, 8 - rotating plate, 9 - vertical plate, 10 - motor 2, 11 - nozzle, 12 - carbon dioxide supply mechanism, 13 - flame detector, 14 - single-chip microcomputer controller, 15 - sound and light alarm, 16 - fire cabinet, 17 - main pipeline, 18 - branch pipeline, 19 - carbon dioxide gas cylinder, 20 - connecting pipe, 21 - high-pressure resistant hose, 22 - solenoid valve, 23 - cabinet door, 24 - dry-type transformer. Specific embodiments
[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0022] The following will be combined with Figures 1-4 A fire alarm and disposal device for a transformer cabinet in an embodiment of the present utility model will be described in detail.
[0023] Embodiment:
[0024] A fire alarm and disposal device for a transformer cabinet provided by an embodiment of the present utility model, referring to Figures 1 to 4 as shown, includes a cabinet body 1, a dry-type transformer 24 is installed in the cabinet body 1, four infrared temperature sensors 2 are arranged inside the cabinet body 1, the four infrared temperature sensors 2 are installed at the four corners of the upper part of the inner cavity of the cabinet body 1, a single-chip microcomputer controller 14 is installed on the cabinet body 1, and the single-chip microcomputer controller 14 is electrically connected to the infrared temperature sensors 2. This structure uses the infrared temperature sensors 2 at the four corners of the inner cavity of the cabinet body 1 to perform an enclosed temperature detection on the periphery and upper part of the dry-type transformer, so as to monitor the temperature change of the transformer in real time and feedback it to the single-chip microcomputer controller 14, so that when the dry-type transformer 24 catches fire, it can be detected and discovered in time.
[0025] It should be noted that: The infrared temperature sensor 2 and the single-chip microcomputer controller 14 are both existing devices. The model of the infrared temperature sensor 2 is HE-155W, and the model of the single-chip microcomputer controller 14 is STM32F103CBT6.
[0026] Reference Figures 1 to 4 As shown, an audible and visual alarm 15 is installed on the top of the cabinet body 1. The audible and visual alarm 15 is electrically connected to the single-chip microcomputer controller 14. In this structure, when the infrared temperature sensor 2 detects abnormal temperature, the single-chip microcomputer controller 14 can control the audible and visual alarm 15 to start alarming, so as to timely remind personnel.
[0027] It should be noted that: The audible and visual alarm 15 is an existing device, and the specific model is LTD-1101J.
[0028] Reference Figures 1 to 4 As shown, a mounting plate 3 is fixedly installed on the upper part of the cabinet body 1. A hollow rotating shaft 4 is rotatably installed on the mounting plate 3. A driven bevel gear 5 is fixedly connected to the upper part of the hollow rotating shaft 4. A motor 6 is fixedly installed on the top surface of the mounting plate 3. The motor 6 is connected to a main bevel gear 7 through an output shaft. The main bevel gear 7 meshes with the driven bevel gear 5. A rotating plate 8 is fixedly connected to the lower part of the hollow rotating shaft 4. A vertical plate 9 is fixedly installed on one side of the rotating plate 8. A motor 10 is fixedly installed on the vertical plate 9. The motor 10 is connected to a spray head 11 through an output shaft. The spray head 11 is connected to a carbon dioxide supply mechanism 12 for fire extinguishing. A flame detector 13 is fixedly installed on the spray head 11. The single-chip microcomputer controller 14 is electrically connected to the motor 6, the motor 10, the flame detector 13 and the carbon dioxide supply mechanism 12. In this structure, when the infrared temperature sensor 2 senses abnormal temperature, the single-chip microcomputer controller 14 controls the motor 6 to start, drives the rotating plate 8 to rotate by the motor 6, and then turns the rotating plate 8 to the area with abnormal temperature. At this time, the flame detector 13 starts, uses the flame detector 13 to perform secondary detection and positioning on the flame in the abnormal area, and sends it to the single-chip microcomputer controller 14. The single-chip controller 14 can control the motor 6 to finely adjust and align with the flame, and at the same time control the motor 1 to drive the spray head 11 to adjust the angle up and down, so that the spray head 11 is aligned with the flame. Then the single-chip microcomputer control 14 can open the carbon dioxide supply mechanism 12, and then spray carbon dioxide from the spray head 11, thereby realizing accurate and rapid fire extinguishing.
[0029] It should be noted that: The flame detector 13 is an existing sensor device, and the specific model is: RS-FS-9001.
[0030] Reference Figures 1 to 4As shown in the figure, the carbon dioxide supply mechanism 12 includes a fire cabinet 16, a main pipeline 17 and a branch pipeline 18. The main pipeline 17 is fixedly installed on the cabinet body 1 and the mounting plate 3, and the branch pipeline 18 is fixedly installed on the rotating plate 8. A carbon dioxide gas cylinder 19 is arranged in the fire cabinet 16. The intake side of the main pipeline 17 is fixedly connected with a connecting pipe 20. The intake end of the connecting pipe 20 is detachably connected to the outlet of the carbon dioxide gas cylinder 19. The outlet end of the main pipeline 17 is rotationally and hermetically connected to the upper end of the inner cavity of the hollow rotating shaft 4. The intake end of the branch pipeline 18 is fixedly connected to the lower part of the hollow rotating shaft 4. The branch pipeline 18 communicates with the hollow inner cavity of the hollow rotating shaft 4. The outlet side of the branch pipeline 18 is fixedly connected with a high-pressure resistant hose 21. The outlet end of the high-pressure resistant hose 21 is connected to the nozzle 11. In this structure, the carbon dioxide gas cylinder 19 stores high-pressure carbon dioxide. When extinguishing a fire, at this time, the carbon dioxide enters the main pipeline 17 from the connecting pipe 20 under pressure, and then the main pipeline 17 transports the carbon dioxide into the hollow rotating shaft 4. The hollow rotating shaft 4 transports the carbon dioxide to the branch pipeline 18, and the branch pipeline 18 transports the carbon dioxide to the nozzle 11 through the high-pressure resistant hose 21, thereby realizing carbon dioxide jet fire extinguishing.
[0031] Reference Figures 1 to 4 As shown in the figure, a solenoid valve 22 is arranged on the connecting pipe 20. The solenoid valve 22 is electrically connected to the single-chip microcomputer controller 14. In this structure, when the nozzle 11 is aligned with the flame, at this time, the single-chip microcomputer control 14 can control the solenoid valve 22 to open, thereby realizing the supply of carbon dioxide.
[0032] Reference Figures 1 to 4 As shown in the figure, a cabinet door 23 is arranged at the front of the fire cabinet 16. The cabinet door 23 is hinged to the fire cabinet 16. In this structure, the cabinet door 23 is used to conveniently open the fire cabinet 16, and thus it is convenient to replace the carbon dioxide gas cylinder 19.
[0033] The implementation principle of a fire alarm and disposal device for a transformer cabinet according to an embodiment of the present application is as follows: When in use, the infrared temperature sensors 2 at the four corners of the inner cavity of the cabinet body 1 are used to perform surrounding temperature detection on the periphery and upper part of the dry-type transformer, so as to monitor the temperature change of the transformer in real time and feedback it to the single-chip microcomputer controller 14, so that when the dry-type transformer 24 catches fire, it can be detected and discovered in time. When the infrared temperature sensor 2 detects abnormal temperature, at this time, the single-chip microcomputer controller 14 can control the sound and light alarm 15 to start alarming, so as to timely remind personnel;
[0034] Meanwhile, the single-chip microcomputer controller 14 controls the start of the first motor 6. The first motor 6 drives the rotating plate 8 to rotate, and then the rotating plate 8 is rotated to the area with abnormal temperature. At this time, the flame detector 13 is started. The flame detector 13 performs secondary detection and positioning on the flame in the abnormal area and sends it to the single-chip microcomputer controller 14. The single-chip controller 14 can control the first motor 6 to finely adjust and align with the flame. At the same time, it controls the start of the second motor 1 to drive the nozzle 11 to adjust the angle up and down, so that the nozzle 11 is aligned with the flame. Then the single-chip microcomputer control 14 can open the solenoid valve 22 of the carbon dioxide supply mechanism 12. At this time, carbon dioxide enters the main pipeline 17 from the connecting pipe 20 under pressure. Then the main pipeline 17 transports carbon dioxide into the hollow rotating shaft 4. The hollow rotating shaft 4 transports carbon dioxide to the branch pipeline 18. The branch pipeline 18 transports carbon dioxide to the nozzle 11 through the high-pressure resistant hose 21 and sprays it out, so as to accurately and quickly extinguish the dry-type transformer fire.
[0035] It should be noted that: the above-mentioned disclosed flame detection device and fire extinguishing device are applied to the fire fighting of dry-type transformer cabinets, belonging to the field of dry-type transformer fire fighting equipment. And the single-chip microcomputer control programs involved in the above-mentioned embodiments have been publicly disclosed and are all prior arts. And this application does not improve the single-chip microcomputer control program, so it will not be introduced in detail here.
[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A transformer cabinet fire alarm and disposal device, comprising a cabinet body (1), characterized in that: A dry-type transformer is installed in the cabinet (1), and four infrared temperature sensors (2) are arranged inside the cabinet (1); A mounting plate (3) is fixedly mounted on the upper part of the cabinet (1), a hollow rotating shaft (4) is rotatably mounted on the mounting plate (3), a slave bevel gear (5) is fixedly connected to the upper part of the hollow rotating shaft (4), a motor 1 (6) is fixedly mounted on the top surface of the mounting plate (3), the motor 1 (6) is connected to a main bevel gear (7) via an output shaft, the main bevel gear (7) is meshed with the slave bevel gear (5), a rotating plate (8) is fixedly connected to the lower part of the hollow rotating shaft (4), a vertical plate (9) is fixedly mounted on one side of the rotating plate (8), a motor 2 (10) is fixedly mounted on the vertical plate (9), the motor 2 (10) is connected to a nozzle (11) via an output shaft, the nozzle (11) is connected to a carbon dioxide supply mechanism (12) for fire extinguishing, and a flame detector (13) is fixedly mounted on the nozzle (11); A single-chip microcomputer controller (14) is installed on the cabinet (1), and the single-chip microcomputer controller (14) is electrically connected to the infrared temperature sensor (2), the first motor (6), the second motor (10), the flame detector (13) and the carbon dioxide supply mechanism (12).
2. A transformer cabinet fire alarm and disposal device as claimed in claim 1, characterized in that: The four infrared temperature sensors (2) are installed at the four corners of the upper inner cavity of the cabinet (1).
3. A transformer cabinet fire alarm and disposal device according to claim 1, characterized in that: An audible and visual alarm (15) is installed on the top of the cabinet (1), and the audible and visual alarm (15) is electrically connected to the single-chip controller (14).
4. A transformer cabinet fire alarm and disposal device according to claim 1, characterized in that: The carbon dioxide supply mechanism (12) comprises a fire cabinet (16), a main pipeline (17) and a branch pipeline (18); the main pipeline (17) is fixedly mounted on the cabinet body (1) and the mounting plate (3); the branch pipeline (18) is fixedly mounted on the rotating plate (8); a carbon dioxide cylinder (19) is arranged in the fire cabinet (16); a connecting pipe (20) is fixedly connected to the air inlet side of the main pipeline (17); the air inlet end of the connecting pipe (20) is connected to the carbon dioxide cylinder (19); The gas outlet of the carbon gas bottle (19) is detachably connected, the gas outlet end of the main pipeline (17) is rotatably sealed and connected to the upper end of the inner cavity of the hollow rotating shaft (4), the gas inlet end of the branch pipeline (18) is fixedly connected to the lower part of the hollow rotating shaft (4), the branch pipeline (18) is communicated with the hollow inner cavity of the hollow rotating shaft (4), and the gas outlet side of the branch pipeline (18) is fixedly connected to a high-pressure hose (21), and the gas outlet end of the high-pressure hose (21) is connected to the nozzle (11).
5. A transformer cabinet fire alarm and disposal device as claimed in claim 4, characterized in that: The connecting pipe (20) is provided with a solenoid valve (22), and the solenoid valve (22) is electrically connected to the single chip controller (14).
6. A transformer cabinet fire alarm and disposal device as claimed in claim 4, characterized in that: The front of the fire cabinet (16) is provided with a cabinet door (23), and the cabinet door (23) is hingedly connected to the fire cabinet (16).