Pressure regulator with liquefied gas cylinder space temperature abnormality alarm function

Abstract

The present application relates to a kind of pressure regulators with liquefied gas cylinder space temperature abnormality alarm function, and it relates to the technical field of liquefied gas cylinder safety.The pressure regulator includes a pressure regulator body, an electrically operated valve, and a temperature sensing device.The pressure regulator body is connected to an inlet pipe and an outlet pipe.The electrically operated valve includes a valve core and a brushless motor, and the valve core is drivingly connected to the output of the brushless motor.A liquefied gas inlet hole is provided on the inlet pipe, and the temperature sensing device is installed in the pressure regulator body.The present application has a built-in temperature sensing device, which can effectively detect the temperature of the cylinder body in real time, provide early warning of the risk of cylinder explosion due to rising ambient temperature, monitor the change of ambient temperature in real time, and reduce the temperature of the cylinder synchronously by sending alarm information and treatment instructions in time if the temperature of the cylinder body rises sharply in a short period of time.The present application can accurately remind the hidden dangers of the cylinder in the fire scene, effectively reduce the risk of cylinder explosion, and effectively reduce the occurrence of secondary disasters.

Description

Technical Field

[0001] This invention relates to the field of liquefied petroleum gas (LPG) cylinder safety technology, specifically a pressure regulator with an alarm function for abnormal ambient temperature in LPG cylinders. Background Technology

[0002] The fire was caused by a gas stove burning dry and spontaneously combusting, and other factors in the building that led to the fire. This fire caused the surrounding environment to ignite, resulting in a rapid increase in the temperature and pressure inside the liquefied petroleum gas (LPG) cylinder, posing a risk of explosion. Currently, besides moving the cylinder out of the fire area and using fire hoses, there are no effective methods to reduce the risk. The pressure of an LPG cylinder is 0.8 MPa at 20 degrees Celsius and can reach 1.59 MPa at 40 degrees Celsius. According to GB / T5842-2022, a 150L LPG cylinder has a maximum design working pressure of 2.1 MPa at 60 degrees Celsius. When the temperature exceeds 60 degrees Celsius, the cylinder may explode twice. First, due to the excessively high temperature, the cylinder may rupture and explode physically, causing the liquefied petroleum gas inside to expand 250-300 times its original size and become gaseous, generating a shock wave similar to a landmine explosion. Secondly, gaseous petroleum gas rapidly mixes with air. When its concentration in the air drops to 1.5%-9.5%, it will produce a chemical explosion and combustion if it comes into contact with an open flame, generating a huge shock wave that endangers life and property. If a person inhales this explosive gas, the combustion of the gas will cause burns to the respiratory tract and lung tissue.

[0003] Therefore, how to provide a pressure regulator with an alarm function for abnormal temperature in the space of liquefied gas cylinders has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a pressure regulator with an alarm function for abnormal space temperature of liquefied gas cylinders. It can effectively detect the temperature of the cylinder in real time, provide early warning of the risk of cylinder explosion when the ambient temperature rises, monitor changes in the surrounding ambient temperature in real time, and provide accurate reminders of cylinder hazards at fire scenes, effectively reducing the risk of cylinder explosion, effectively reducing casualties, and further improving safety.

[0005] To achieve the above objectives, the present invention provides a pressure regulator with an alarm function for abnormal temperature in a liquefied petroleum gas (LPG) cylinder, comprising: a pressure regulator body, an electric switching valve, and a temperature sensing device; wherein, one end of the pressure regulator body is connected to an inlet pipe, and the other end is connected to an outlet pipe; the electric switching valve is disposed within the pressure regulator body, and the electric switching valve includes a valve core and a brushless motor, the valve core being drivenly connected to the output end of the brushless motor; the inlet pipe is provided with an LPG inlet port, and the temperature sensing device is installed within the pressure regulator body.

[0006] Furthermore, it also includes a gas leak detector, which includes a detection chip and an output device. The temperature sensing device is electrically connected to the detection chip via a circuit, and the detection chip is electrically connected to the output device.

[0007] Furthermore, the output device includes an alarm device and a display. The display shows the temperature for real-time monitoring by the user. When the measured temperature reaches or exceeds the set alarm threshold, the alarm device issues an alarm.

[0008] Furthermore, the output device also includes a communication module, through which the detection chip sends temperature data to a data backend, outputs it to a control platform, or saves it to a recorder.

[0009] Furthermore, a motor cover is provided at the location where the brushless motor is installed on the voltage regulator body. The motor cover has a second wire hole, through which the wire of the temperature sensing device passes and is electrically connected to an external detection chip.

[0010] The beneficial effects of this invention are as follows:

[0011] This invention incorporates a built-in temperature sensing device that can effectively detect the temperature of the bottle in real time. It provides early warning of the risk of bottle explosion when the ambient temperature rises, and monitors changes in the surrounding ambient temperature in real time. If the bottle temperature rises sharply in a short period of time, the temperature sensing device will promptly send alarm information and hazard elimination instructions, and provide precise reminders of potential cylinder hazards at the fire scene. This effectively reduces the risk of bottle explosion, reduces the occurrence of secondary disasters, further improves safety, and fills a gap in domestic risk mitigation measures. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention.

[0013] Figure 2 for Figure 1 A sectional view;

[0014] Figure 3 for Figure 1 Exploded view;

[0015] Figure 4 This is a schematic diagram of another embodiment of the present invention;

[0016] Figure 5 for Figure 4 The exploded diagram.

[0017] In the diagram, 1-pressure regulator body; 1-1-pressure regulator body upper cover; 1-2-pressure regulator body lower cover; 2-inlet pipe; 3-outlet pipe; 4-brushless motor; 5-electric switch valve; 6-stainless steel tray; 7-pressure regulating spring; 8-valve core; 9-motor cover; 10-wire hole two. Detailed Implementation

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0023] like Figure 1-2 As shown, this invention provides a pressure regulator with an alarm function for abnormal temperature in a liquefied petroleum gas (LPG) cylinder, comprising: a pressure regulator body 1, an electric switching valve 5, and a temperature sensing device; wherein, one end of the pressure regulator body 1 is connected to an inlet pipe 2, and the other end is connected to an outlet pipe 3; the electric switching valve 5 is disposed within the pressure regulator body 1, and the electric switching valve 5 includes a valve core 8 and a brushless motor 4, the valve core 8 being drively connected to the output end of the brushless motor 4; the inlet pipe is provided with a standard LPG inlet port, and the temperature sensing device is installed within the pressure regulator body. The brushless motor is connected to the valve core via a threaded rod, and the brushless motor drives the screw to rotate, thereby realizing the stroke of the valve core 8 of the electric switching valve 5, thus performing the function of opening and closing the pressure regulator body.

[0024] The brushless motor in this invention can be a vertical motor, such as... Figure 1 and Figure 3 As shown, a horizontal motor can also be used, such as... Figure 4 and Figure 5 As shown.

[0025] The present invention also includes a gas leak detector, which includes a detection chip and an output device. The temperature sensing device is electrically connected to the detection chip via a circuit, and the detection chip is electrically connected to the output device.

[0026] The output device includes an alarm device and a display. The display shows the temperature for real-time monitoring by the user. When the measured temperature reaches or exceeds a set alarm threshold, the alarm device sounds an alarm. It can automatically alert the user to temperature changes in different environments and scenarios, allowing for timely control measures.

[0027] The output device also includes a communication module, through which the detection chip sends temperature data to the data backend, outputs it to the control platform, or saves it to the recorder.

[0028] The pressure regulator has a built-in temperature sensor that can effectively monitor the ambient temperature around the liquefied petroleum gas cylinder in real time. When the cylinder temperature reaches 45 degrees Celsius but is below 60 degrees Celsius, the alarm device sends a warning signal to the data backend, reminding the owner, gas company, and relevant regulatory departments that there is an abnormality and that timely verification is required. When the cylinder temperature rises continuously to above 60 degrees Celsius in a short period of time, an alarm signal is sent to the data backend for storage. At the same time, the emergency plan and hazard elimination system are activated to cool down the pressure regulator and the area around the cylinder to reduce the risk of explosion. The alarm also notifies relevant departments to carry out on-site emergency response, so as to achieve the goal of "monitoring, warning, and rapid response".

[0029] The regulator body 1 includes an upper cover 1-1 and a lower cover 1-2. The upper cover 1-1 and the lower cover 1-2 are connected by bolts and form a cavity inside. The middle of the inside of the regulator body 1 is a pressure balancing mechanism. The upper and lower halves are isolated by diaphragms to ensure the sealing of the internal cavity of the regulator body and prevent leakage.

[0030] The top of the regulator body 1 is provided with a circular threaded hole with a diameter of 1.75mm. An adjusting nut is threaded onto the circular threaded hole for adjusting the internal air pressure of the lower half of the regulator body 1. The diaphragm part is fixedly mounted on the stainless steel tray 6. The stainless steel tray 6 supports a pressure adjusting spring 7. The pressure adjusting spring 7 is used to adjust the pressure in the lower chamber of the regulator body 1 and has an automatic shut-off function.

[0031] In this embodiment, a motor cover 9 is provided at the location where the brushless motor is installed on the voltage regulator body. The motor cover is provided with a wire hole 10 with a diameter of 5mm. The wire of the temperature sensing device passes through the wire hole 10 on the back side of the motor cover and is electrically connected to the external detection chip, thereby ensuring the transmission of temperature sensing information and power supply of the voltage regulator body.

[0032] Currently, there are no effective measures to address the potential explosion hazard posed by rising ambient temperatures (such as fires near LPG cylinders or spontaneous combustion of gas stoves). Therefore, this invention incorporates a built-in temperature sensor. This sensor effectively detects the cylinder temperature in real time, providing early warnings of potential explosion risks due to rising ambient temperatures. It also monitors changes in the surrounding temperature. If the cylinder temperature rises sharply within a short period, the temperature sensor promptly sends alarm messages and hazard warnings, providing precise alerts for potential cylinder hazards at fire scenes. This effectively reduces the risk of cylinder explosions, minimizes secondary disasters, and further enhances safety, filling a gap in domestic risk mitigation measures.

[0033] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A pressure regulator with an alarm function for abnormal ambient temperature in a liquefied petroleum gas cylinder, characterized in that, include: The system comprises a pressure regulator body, an electric switching valve, and a temperature sensing device. One end of the pressure regulator body is connected to an inlet pipe, and the other end is connected to an outlet pipe. The electric switching valve is housed within the pressure regulator body and includes a valve core and a brushless motor. The valve core is driven by the output end of the brushless motor. The inlet pipe has a liquefied gas inlet port. The temperature sensing device is installed within the pressure regulator body. The brushless motor is connected to the valve core via a threaded rod. The brushless motor drives the threaded rod to rotate, thus realizing the stroke of the valve core of the electric switching valve and enabling the opening and closing of the pressure regulator body. It also includes a gas leak detector, which includes a detection chip and an output device. The temperature sensing device is electrically connected to the detection chip via a circuit, and the detection chip is electrically connected to the output device. The output device includes an alarm device and a display. The display shows the temperature for users to monitor in real time. When the cylinder temperature reaches 45 degrees but is less than 60 degrees, the alarm device sends a warning signal to the data backend to remind the owner, gas company, and relevant regulatory departments that there is an abnormality and that timely verification is required. When the cylinder temperature rises continuously to more than 60 degrees in a short period of time, an alarm signal is sent to the data backend for storage, and at the same time, the emergency plan and the hazard elimination system are activated to cool down the regulator and the area around the cylinder. The output device also includes a communication module, through which the detection chip sends temperature data to the data backend, outputs it to the control platform, or saves it to the recorder. A motor cover is provided at the location where the brushless motor is installed on the voltage regulator body. The motor cover has a wire hole, through which the wire of the temperature sensing device passes and is electrically connected to an external detection chip.

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