Coal yard spontaneous combustion detection alarm device

Abstract

The utility model mainly relates to the field of fire alarm equipment, in particular to a coal yard spontaneous combustion detection alarm device which comprises a mounting plate, mounting holes are formed in the center and the four corners of the top face of the mounting plate respectively, and a connecting rod is rotationally mounted on the bottom face of the mounting plate. The lower end of the connecting rod is integrally and fixedly provided with a ventilation barrel with the two ends open. A temperature sensor is fixedly installed on one side of the top face of the inner wall of the ventilation barrel, a smoke sensor is fixedly installed on the other side of the top face of the inner wall of the ventilation barrel, an audible and visual alarm is fixedly installed at the bottom, and the temperature sensor, the smoke sensor and the audible and visual alarm are all electrically connected with the power source. And a rotating assembly capable of driving the connecting rod to rotate is arranged at the bottom of the mounting plate. When in use, through dual detection of the temperature sensor and the smoke sensor, effective detection of fire smoke is realized, and the accuracy of fire detection is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire alarm equipment, in particular to a coal yard spontaneous combustion detection alarm device. BACKGROUND

[0002] Coal yards usually store a large amount of coal. The coal pile that is stacked for a long time will have an oxidation reaction with oxygen in the air to generate heat, and also release carbon monoxide (CO), smoke and other gases. If the oxidation reaction continues to intensify, the temperature of the coal pile will continue to rise, thereby accelerating the speed of the oxidation reaction. This interaction will cause the temperature of the coal pile to continue to rise, and once it exceeds the spontaneous combustion point of coal, spontaneous combustion may occur.

[0003] In the prior art, a smoke alarm is generally used to monitor fire risk. When a fire occurs, a large amount of smoke generated by the fire will be recognized by the smoke alarm and trigger an alarm. However, in the coal yard environment, there is a large amount of dust, which may mistakenly trigger the smoke detector, resulting in frequent false alarms, thereby affecting the normal function and reliability of the smoke alarm. SUMMARY

[0004] In view of the above problems, the present application provides a coal yard spontaneous combustion detection alarm device, which realizes effective detection of fire smoke through double detection of temperature sensors and smoke sensors, thereby improving the accuracy of fire detection.

[0005] To achieve the purpose of the present application, the present application provides the following technical solutions:

[0006] A coal yard spontaneous combustion detection alarm device, comprising a mounting plate, a plurality of mounting holes are formed in the center of the top surface and the four corners of the mounting plate, a connecting rod is rotatably installed on the bottom surface of the mounting plate, and a ventilation duct with open ends is integrally fixedly installed on the lower end of the connecting rod;

[0007] A temperature sensor is fixedly installed on one side of the inner wall top surface of the ventilation duct, a smoke sensor is fixedly installed on the other side, and an audible and visual alarm is fixedly installed at the bottom, wherein the temperature sensor, the smoke sensor and the audible and visual alarm are electrically connected with a power supply;

[0008] The bottom of the mounting plate is provided with a rotating assembly capable of driving the connecting rod to rotate.

[0009] In a possible implementation manner, one end of the ventilation duct is fixedly installed with a support.

[0010] In a possible implementation manner, the support is fixedly installed with an air suction fan close to the inner side of the ventilation duct, and the air suction fan is electrically connected with the power supply.

[0011] In a possible implementation manner, the rotating assembly comprises a forward and reverse stepping motor and an internal gear ring.

[0012] The forward-reverse stepping motor is fixedly installed on one side of the top surface of the ventilation cylinder and electrically connected with the power supply.

[0013] The inner gear ring is fixedly installed on the bottom surface of the mounting plate and arranged around the connecting rod.

[0014] In a possible implementation, the output end of the forward-reverse stepping motor is fixedly installed with a gear engaged with the inner gear ring.

[0015] In a possible implementation, the inner bottom surface of the ventilation cylinder is integrally fixedly installed with a conical protrusion.

[0016] In a possible implementation, the device further comprises a controller.

[0017] Compared with the prior art, the device has the following beneficial effects:

[0018] In actual use, through the double monitoring of the temperature sensor and the smoke sensor, effective detection of fire smoke can be realized, and the accuracy of fire detection is improved; at the same time, through the monitoring of the smoke temperature, false alarm caused by dust can be effectively avoided, thereby significantly improving the use effect and reliability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application.

[0020] Figure 1 is a structural schematic view of the present application;

[0021] Figure 2 is a sectional view along Figure 1 A-A of the device;

[0022] In the figure: 1, mounting plate; 2, mounting hole; 3, connecting rod; 4, ventilation cylinder; 5, temperature sensor; 6, smoke sensor; 7, audible and light alarm; 8, bracket; 9, air suction fan; 10, forward-reverse stepping motor; 11, inner gear ring; 12, gear; 13, conical protrusion. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] The terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features; in the description of the present application, the meaning of "a plurality" is two or more, unless otherwise stated.

[0025] Embodiment 1

[0026] Figures 1-2 A coal yard spontaneous combustion detection alarm device provided by the embodiment of the present application comprises: a mounting plate 1, mounting holes 2 are formed in the center of the top surface and the four corners of the mounting plate 1, a connecting rod 3 is rotatably installed on the bottom surface of the mounting plate 1, and a ventilation duct 4 with open ends is integrally fixedly installed on the lower end of the connecting rod 3;

[0027] A temperature sensor 5 is fixedly installed on one side of the inner wall top surface of the ventilation duct 4, a smoke sensor 6 is fixedly installed on the other side, a sound and light alarm 7 is fixedly installed on the bottom, and the temperature sensor 5, the smoke sensor 6 and the sound and light alarm 7 are electrically connected with a power supply;

[0028] The bottom of the mounting plate 1 is provided with a rotating assembly capable of driving the connecting rod 3 to rotate.

[0029] In a possible implementation, one end of the ventilation duct 4 is fixedly installed with a support 8, and a suction fan 9 is fixedly installed on the inner side of the ventilation duct 4 close to the support 8, and the suction fan 9 is electrically connected with the power supply;

[0030] Specifically, after the suction fan 9 is powered on and started, it can promote the flow of the surrounding air, and when a fire occurs, the smoke generated can be more easily captured by the suction fan 9 and guided into the ventilation duct 4, so that the smoke sensor 6 can more quickly detect the change of the smoke, and the overall early warning function of the device is improved.

[0031] In a possible implementation, the rotating assembly comprises a forward and reverse stepping motor 10 and an inner ring gear 11, and the forward and reverse stepping motor 10 is fixedly installed on one side of the top surface of the ventilation duct 4;

[0032] The inner ring gear 11 is fixedly installed on the bottom surface of the mounting plate 1 and surrounds the connecting rod 3;

[0033] A gear 12 engaged with the inner ring gear 11 is fixedly installed on the output end of the forward and reverse stepping motor 10;

[0034] The forward and reverse stepping motor 10 is electrically connected with the power supply;

[0035] Specifically, when the power supply of the reversible stepper motor 10 is turned on, the output end of the reversible stepper motor 10 can drive the gear 12 connected thereto to rotate synchronously, the gear 12 can move along the inner ring gear 11, thereby driving the reversible stepper motor 10 to move synchronously and driving the ventilation cylinder 4 to rotate, so that the adjustment of the direction of the ventilation cylinder 4 is realized.

[0036] Meanwhile, the ventilation cylinder 4 can be driven to rotate back and forth by the forward and reverse rotation of the output shaft of the reversible stepper motor 10, so that the power supply line can be prevented from being wound during the rotation of the ventilation cylinder 4, thereby improving the reliability of the device.

[0037] In a possible implementation, the inside bottom surface of the ventilation cylinder 4 is integrally fixedly provided with a conical protrusion 13, and the conical protrusion 13 can guide the air or smoke entering the ventilation cylinder 4 to move upward along the inclined surface, so that the temperature sensor 5 and the smoke sensor 6 can detect the smoke and the temperature change of the air more quickly, and the use effect of the device as a whole is improved.

[0038] In a possible implementation, the coal field spontaneous combustion detection and alarm device further comprises a controller, the position of the controller is set by the staff according to the actual situation during operation, the controller is used for controlling the electrical devices used in the present application, including but not limited to sensors and motors, the controller is an Intel processor, an AMD processor, a PLC controller, an ARM processor or a single-chip microcomputer, and a mainboard, a memory bar, a storage medium and a power supply are used in conjunction with the controller, the power supply is a commercial power supply or a lithium battery, when the controller is provided with a display screen, the controller is further provided with a display card, the operation principle of the controller can be referred to the books published by Tsinghua University Press, such as "Automatic Control Principle", "Microcontroller Principle and Application Simulation Case" and "Sensor Principle and Application", and other books in the field, and the automation control and electrical devices not mentioned herein are all known to those skilled in the art, and will not be described here.

[0039] The working principle of the present application is as follows:

[0040] In use, the device can detect smoke through the smoke sensor 6 and detect the temperature of the smoke and the air through the temperature sensor 5, the temperature of the air can change significantly in a short time when a fire occurs, and the temperature of the smoke can also rise, so that the detection accuracy can be improved by detecting the temperature of the smoke to avoid the smoke sensor 6 being triggered by dust.

[0041] When the temperature change and the smoke are detected, the controller starts the audible and visual alarm 7 to emit warning light and alarm, so that the fire can be alarmed in time, the emergency response speed of the coal field can be improved, and the production safety of the coal field can be ensured.

[0042] In several embodiments provided in the present application, it should be understood that the disclosed system, modules and methods can be implemented in other manners. For example, the division of the above-described module embodiments is only a logical function division, and there can be another division manner for the actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, modules or units, and can be in electrical, mechanical or other forms.

[0043] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. The present application is not limited to the accurate structures as shown in the above description and the drawings, and the specific implementation of the present application should not be limited to the above description. For ordinary skilled in the art to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be considered to fall within the scope of the present application.

Claims

1. A coal yard spontaneous combustion detection alarm device, characterized in that, Including the installation board (1), the top surface center and four corners of the installation board (1) are provided with mounting holes (2) respectively, the bottom surface of the installation board (1) is rotatably installed with a connecting rod (3), the lower end of the connecting rod (3) is integrally fixedly installed with a ventilation pipe (4) with two open ends; The inner wall of the ventilation pipe (4) is fixedly installed with a temperature sensor (5) on one side of the top surface, and is fixedly installed with a smoke sensor (6) on the other side, and is fixedly installed with an audible and visual alarm (7) at the bottom, the temperature sensor (5), the smoke sensor (6) and the audible and visual alarm (7) are electrically connected with the power supply; The bottom of the installation board (1) is provided with a rotating assembly capable of driving the connecting rod (3) to rotate, which comprises a forward and reverse stepping motor (10) and an inner gear ring (11); The forward and reverse stepping motor (10) is fixedly installed on one side of the top surface of the ventilation pipe (4) and is electrically connected with the power supply; The inner gear ring (11) is fixedly installed on the bottom surface of the installation board (1) and surrounds the connecting rod (3).

2. The coal yard spontaneous combustion detection and alarm device according to claim 1, characterized in that, One end of the ventilation pipe (4) is fixedly installed with a support (8).

3. The coal yard spontaneous combustion detection and alarm device according to claim 2, characterized in that, The support (8) is fixedly installed with an air suction fan (9) near the inner side of the ventilation pipe (4), and the air suction fan (9) is electrically connected with the power supply.

4. The coal yard spontaneous combustion detection alarm device according to claim 1, characterized in that, The output end of the forward and reverse stepping motor (10) is fixedly installed with a gear (12) engaged with the inner gear ring (11).

5. The coal yard spontaneous combustion detection and alarm device according to claim 1, characterized in that, The inside bottom surface of the ventilation pipe (4) is integrally fixedly installed with a conical protrusion (13).

6. The coal yard spontaneous combustion detection and alarm device according to claim 1, characterized in that, Also including: Controller.

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