Safety detection system for gas boiler room

Abstract

The utility model relates to a safety detection system for a gas boiler room, which comprises a gas concentration detector connected with a controller; the camera is connected with the controller; the alarm is connected with the controller and used for receiving the alarm signal output by the controller and giving an alarm; the automatic stop valve is connected with the controller, the automatic stop valve is installed between the gas pipeline and the boiler, and the automatic stop valve is used for receiving the closing signal output by the controller and closing to cut off gas supply; and the controller receives the fuel gas concentration output by the fuel gas concentration detector, also receives the image output by the camera, and transmits the fuel gas concentration and the image to the client through the cloud server.

Description

Technical Field

[0001] This utility model relates to the field of detection technology, and more specifically to a safety detection system for a gas-fired boiler room. Background Technology

[0002] Gas-fired boilers are mainly used for residential heating, hot water supply, industrial production, and commercial applications. They utilize gas (natural gas or other types of gas) as fuel to provide heat energy for heating water, air, or other media to meet diverse heat demands. As high-temperature, high-pressure thermal energy equipment, gas-fired boilers are susceptible to serious consequences, such as explosions, fires, and leaks, should malfunction or encounter accidents. To ensure the safe and efficient operation of boilers and prevent accidents, current technologies typically monitor and prevent potential safety hazards during boiler operation.

[0003] Existing technologies typically monitor the temperature of the boiler room and cut off the gas or electricity supply when the temperature in the boiler room is too high, so as to stop the equipment operation in time and prevent accidents.

[0004] However, existing temperature monitoring systems used to detect boiler room temperatures may have the problem of not being able to fully detect all potential safety hazards. Utility Model Content

[0005] To address the issue that the aforementioned temperature monitoring systems may not be able to comprehensively detect all potential safety hazards, this utility model proposes a safety detection system for gas-fired boiler rooms.

[0006] A gas-fired boiler room safety detection system includes: a gas concentration detector for collecting electrical signals of gas concentration in the boiler room and transmitting these signals to a controller; a camera for capturing images of the boiler room and transmitting the corresponding data to the controller; an alarm for receiving alarm signals from the controller and triggering an alarm; an automatic shut-off valve installed between the gas pipeline and the boiler, which receives a closing signal from the controller and closes to cut off the gas supply; and a controller connected to the gas concentration detector, camera, alarm, and automatic shut-off valve. The controller receives gas concentration data from the gas concentration detector and also receives images from the camera. The controller transmits the gas concentration and images to a client via a cloud server. When the gas concentration exceeds a threshold, the controller transmits an alarm signal to the alarm and a closing signal to the automatic shut-off valve.

[0007] Preferably, the gas concentration detector includes: a voltage stabilizing circuit and a gas measuring circuit. The voltage stabilizing circuit is connected to a power supply. The input terminal of the voltage stabilizing circuit is connected to a controller to receive a positive level signal output by the controller. The output terminal of the voltage stabilizing circuit is connected to the input terminal of the gas measuring circuit to provide a stabilizing signal to the gas measuring circuit. The output terminal of the gas measuring circuit is connected to the controller.

[0008] Preferably, the voltage regulator circuit includes: a buck converter, a MOSFET M1, a transistor Q1, a first resistor R1, a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4. The base of the transistor Q1 is connected to the controller to receive the positive voltage signal output by the controller. The base of the transistor Q1 is also grounded through the second capacitor C2. The base and emitter of the transistor Q1 are grounded. The collector of the transistor Q1 and one end of the first resistor R1 are connected to the gate of the MOSFET M1. The other end of the first resistor R1 is connected to the source of the MOSFET M1 and then to the first capacitor C4. Capacitor C1 is grounded, and the drain of the MOSFET M1 is grounded through the third capacitor C3. The drain of the MOSFET M1 is also connected to the first and third pins of the buck converter. The second pin of the buck converter is grounded. The fifth pin of the buck converter is connected to one end of the inductor L1. The other end of the inductor L1 is connected to the fourth pin of the buck converter and then grounded through the fourth capacitor C4. The other end of the inductor L1 serves as the output terminal of the voltage regulator circuit and is connected to the input terminal of the gas measurement circuit. The MOSFET M1 is a PMOS transistor, and the transistor Q1 is an NPN transistor.

[0009] Preferably, the MOS transistor M1 is model AO3041A.

[0010] Preferably, the buck converter is model TPS62205DBV.

[0011] Preferably, the output terminals of the gas measurement circuit include a first output terminal and a second output terminal. The gas measurement circuit includes: a gas concentration sensor P1, a fifth capacitor C5, a sixth capacitor C6, a second resistor R2, a third resistor R3, and a sliding rheostat RP. The first pin of the gas concentration sensor P1 serves as the input terminal of the gas measurement circuit and is connected to the output terminal of the voltage regulator circuit. The first pin of the gas concentration sensor P1 is grounded through the fifth capacitor C5 and connected to one end of the second resistor R2 and one end of the sliding rheostat RP. The other end of the second resistor R2 and the sliding arm of the sliding rheostat RP are both connected to one end of the third resistor R3, and one end of the third resistor R3 serves as the second output terminal. The other end of the sliding rheostat RP is connected to the other end of the third resistor R3 and grounded. The sixth capacitor C6 is connected in parallel with the third resistor R3. The second pin of the gas concentration sensor P1 is connected to the third pin of the gas concentration sensor P1 and then serves as the first output terminal connected to the controller. The first output terminal outputs a high level, and the second output terminal outputs a low level.

[0012] Preferably, the gas concentration sensor P1 is model NAP-55A.

[0013] Preferably, a gas boiler room safety detection system further includes a signal amplification circuit, wherein the third pin of the gas concentration sensor P1 is connected to the controller through the signal amplification circuit, and wherein the signal amplification circuit amplifies the gas concentration electrical signal output by the gas concentration sensor P1 and transmits it to the controller.

[0014] Preferably, a gas-fired boiler room safety detection system further includes a photovoltaic power source, which is used to supply power to the controller, alarm, automatic circuit breaker, and camera.

[0015] The beneficial effects of this utility model are as follows:

[0016] The inventors discovered that serious boiler accidents (such as severe explosions and fires) are often related to excessively high levels of combustible gases in the air. Furthermore, the accumulation of combustible gases can also trigger fires or explosions even before the temperature reaches a critical value. Therefore, this invention detects the concentration of combustible gas in the boiler room and automatically cuts off the gas supply when the concentration is too high. Moreover, this invention uses a camera to collect image data of the boiler room and transmits this data, along with the gas concentration data, to the corresponding terminals of relevant personnel. This allows personnel to manually assess the risk of boiler malfunction based on the image and gas concentration data. Attached Figure Description

[0017] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0018] Figure 1 This is a structural block diagram of a gas boiler room safety detection system according to an embodiment of the present utility model;

[0019] Figure 2 This is a structural block diagram of a gas concentration detector according to an embodiment of the present utility model;

[0020] Figure 3 This is a circuit diagram of a voltage regulator circuit according to an embodiment of the present utility model;

[0021] Figure 4 This is a circuit diagram of a gas measuring circuit according to an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] Figure 1 This is a structural block diagram of a gas-fired boiler room safety detection system according to an embodiment of the present utility model.

[0025] like Figure 1 As shown, a safety detection system for a gas-fired boiler room includes: a gas concentration detector, a camera, an alarm, an automatic shut-off valve, and a controller.

[0026] The system includes: a gas concentration detector for collecting electrical signals of gas concentration in the boiler room and transmitting them to the controller; a camera for capturing images of the boiler room and transmitting the corresponding data to the controller; an alarm for receiving alarm signals from the controller and triggering an alarm; an automatic shut-off valve installed between the gas pipeline and the boiler, which receives a closing signal from the controller and closes to cut off the gas supply; and a controller connected to the gas concentration detector, camera, alarm, and automatic shut-off valve. The controller receives gas concentration data from the gas concentration detector and also receives images from the camera. The controller transmits the gas concentration and images to the client via a cloud server. When the gas concentration exceeds a threshold, the controller transmits an alarm signal to the alarm and a closing signal to the automatic shut-off valve.

[0027] It should be noted that the client can be a PC or a mobile device. In this embodiment of the invention, the client is a single PC or mobile device; in other embodiments, there are multiple clients, including multiple PCs and / or mobile devices.

[0028] Furthermore, a safety detection system for a gas-fired boiler room also includes a photovoltaic power source, which is used to power the controller, alarm, automatic circuit breaker, and camera.

[0029] The photovoltaic power supply includes multiple power output interfaces, and the controller, alarm, automatic circuit breaker, and camera are all connected to one of these interfaces.

[0030] It's important to note that the core component of a photovoltaic (PV) power source is the photovoltaic (solar) panel. A PV panel is composed of numerous photovoltaic cells (also called solar cells), which utilize the photovoltaic effect to convert sunlight into direct current (DC). When sunlight shines on a PV cell, the energy of the photons is absorbed by the semiconductor material (usually silicon), exciting electrons and forming electron-hole pairs. These electrons flow in the external circuit, forming an electric current, thus realizing the conversion of solar energy into electrical energy.

[0031] Figure 2 This is a structural block diagram of a gas concentration detector according to an embodiment of the present utility model;

[0032] like Figure 2 As shown, the gas concentration detector includes a voltage stabilizing circuit and a gas measurement circuit.

[0033] The voltage regulator circuit is connected to the power supply, its input terminal is connected to the controller to receive the positive level signal output by the controller, its output terminal is connected to the input terminal of the gas measurement circuit to provide a regulated signal to the gas measurement circuit, and its output terminal is connected to the controller.

[0034] It should be noted that the gas measurement circuit includes a gas concentration sensor, which has an optimal operating voltage. Therefore, a stable voltage (referred to as the optimal operating voltage of the gas concentration sensor) is applied to the gas concentration sensor in the gas measurement circuit through a voltage regulator circuit to improve the detection accuracy of the gas concentration sensor.

[0035] Figure 3 This is a circuit diagram of a voltage regulator circuit according to an embodiment of the present invention.

[0036] like Figure 3 As shown, the voltage regulator circuit includes a buck converter, a MOSFET M1, a transistor Q1, a first resistor R1, a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4.

[0037] In this circuit, the base of transistor Q1 is connected to the controller to receive the positive voltage signal output by the controller. The base of transistor Q1 is also grounded through the second capacitor C2. The base and emitter of transistor Q1 are grounded. The collector of transistor Q1 and one end of the first resistor R1 are connected to the gate of MOSFET M1. The other end of the first resistor R1 is connected to the source of MOSFET M1 and then grounded through the first capacitor C1. The drain of MOSFET M1 is grounded through the third capacitor C3. The drain of MOSFET M1 is also connected to the first and third pins of the buck converter. The second pin of the buck converter is grounded. The fifth pin of the buck converter is connected to one end of inductor L1. The other end of inductor L1 is connected to the fourth pin of the buck converter and then grounded through the fourth capacitor C4. The other end of inductor L1 serves as the output of the voltage regulator circuit and is connected to the input of the gas measurement circuit. In this circuit, MOSFET M1 is a PMOS transistor, and transistor Q1 is an NPN transistor.

[0038] In one embodiment, the MOSFET M1 is designated AO3041A. It should be noted that the AO3041A is a P-channel MOSFET with a voltage rating of 30V and a drain current carrying capacity of 4A. The AO3041A can be used in low-voltage, high-current switching power supplies, motor drives, and load switching applications. The AO3041A features low on-resistance and low power loss, making it suitable for power management circuits. The AO3041A is available in flexible packages, typically SOT-23 or TO-252.

[0039] In one embodiment, the buck converter is designated TPS62205DBV. It should be noted that the TPS62205DBV is a buck DC-DC converter from Texas Instruments. The TPS62205DBV is used for power management in low-power electronic devices, providing a stable output voltage. The TPS62205DBV employs synchronous rectification technology, resulting in high efficiency, low standby power consumption, and a small package. Therefore, the TPS62205DBV is used in mobile devices, portable electronic products, and other low-power applications.

[0040] Figure 4 This is a circuit diagram of a gas measuring circuit according to an embodiment of the present invention.

[0041] like Figure 4 As shown, the output terminals of the gas measurement circuit include a first output terminal and a second output terminal. The gas measurement circuit includes: a gas concentration sensor P1, a fifth capacitor C5, a sixth capacitor C6, a second resistor R2, a third resistor R3, and a sliding rheostat RP.

[0042] In this circuit, the first pin of the gas concentration sensor P1 serves as the input terminal of the gas measurement circuit and is connected to the output terminal of the voltage regulator circuit. The first pin of the gas concentration sensor P1 is grounded through the fifth capacitor C5 and connected to one end of the second resistor R2 and one end of the sliding rheostat RP. The other end of the second resistor R2 and the sliding arm of the sliding rheostat RP are both connected to one end of the third resistor R3, and one end of the third resistor R3 serves as the second output terminal. The other end of the sliding rheostat RP is connected to the other end of the third resistor R3 and grounded. The sixth capacitor C6 is connected in parallel with the third resistor R3. The second pin of the gas concentration sensor P1 is connected to the third pin and then serves as the first output terminal connected to the controller. The first output terminal outputs a high level, and the second output terminal outputs a low level.

[0043] In one embodiment, the gas concentration sensor P1 is model NAP-55A. The optimal operating voltage of NAP-55A is 2.5V, meaning that NAP-55A performs well when its first pin receives a voltage of 2.5V.

[0044] It should be noted that the second resistor R1, the third resistor R3, and the sliding rheostat RP form a bridge circuit. By adjusting the sliding rheostat RP, the second output terminal is made to output a low level of 0. At this time, the difference between the output level of the first output terminal and the output level of the second output terminal reflects the gas concentration of the gas concentration sensor P1.

[0045] Furthermore, a gas boiler room safety detection system also includes a signal amplification circuit. The third pin of the gas concentration sensor P1 is connected to the controller through the signal amplification circuit, wherein the signal amplification circuit amplifies the gas concentration electrical signal output by the gas concentration sensor P1 and transmits it to the controller.

[0046] It should be noted that the signal amplification circuit is used to amplify the gas concentration electrical signal output by the sensor to a level suitable for the controller to process. The amplified signal is then transmitted to the controller, which can determine the gas concentration based on the signal.

[0047] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0049] While this specification has shown and described various embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention.

Claims

1. A gas boiler room safety detection system, characterized in that, The application relates to a boiler room safety control system. The application relates to a boiler room safety control system. The application relates to a boiler room safety control system. The application relates to a boiler room safety control system. The application relates to a boiler room safety control system. The application relates to a boiler room safety control system. The application relates to a boiler room safety control system. The application relates to a boiler room safety control system.

2. The gas boiler room safety detection system according to claim 1, characterized in that, The application relates to a boiler room safety control system.

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The gas boiler room safety detection system according to claim 1, characterized in that, The output end of the gas measurement circuit includes a first output end and a second output end, and the gas measurement circuit includes a gas concentration sensor (P1), a fifth capacitor (C5), a sixth capacitor (C6), a second resistor (R2), a third resistor (R3), and a sliding rheostat (RP). The first pin of the gas concentration sensor (P1) is connected to the output end of the voltage stabilizing circuit as the input end of the gas measurement circuit. The first pin of the gas concentration sensor (P1) is grounded through the fifth capacitor (C5) and connected to one end of the second resistor (R2) and one end of the sliding rheostat (RP). The other end of the second resistor (R2) and the sliding arm of the sliding rheostat (RP) are both connected to one end of the third resistor (R3), and one end of the third resistor (R3) is the second output end. The other end of the sliding rheostat (RP) is connected to the other end of the third resistor (R3) and grounded, and the sixth capacitor (C6) is connected in parallel with the third resistor (R3). The second pin of the gas concentration sensor (P1) is connected to the third pin of the gas concentration sensor (P1) and then connected to the controller as the first output end. The first output end outputs a high level, and the second output end outputs a low level.

5. A gas boiler room safety detection system according to claim 4, characterized in that, The model of the gas concentration sensor (P1) is NAP-55A.

6. The gas boiler room safety detection system according to claim 4, characterized in that, The signal amplification circuit is also included, and the third pin of the gas concentration sensor (P1) is connected to the controller through the signal amplification circuit. The signal amplification circuit amplifies the gas concentration electrical signal output by the gas concentration sensor (P1) and transmits it to the controller.

7. The gas boiler room safety detection system according to claim 1, characterized in that, The photovoltaic power supply is also included, and the photovoltaic power supply is used to supply power to the controller, the alarm, the automatic switch, and the camera.

Images