An ultrasonic gas meter and gas management system

Abstract

This invention discloses an ultrasonic gas meter and a gas management system. The ultrasonic gas meter includes: a normally closed solenoid valve connected to the main gas pipe via an inlet pipe, and a normally closed solenoid valve connected to the gas-using equipment via an outlet pipe; a comprehensive detection module electrically connected to a first terminal of a control module, and a control module electrically connected to the normally closed solenoid valve via a second terminal; the comprehensive detection module is used to detect the gas pressure, ultrasonic gas flow rate, and ambient temperature of the outlet pipe in real time, and transmits these parameters to the control module; the control module is used to determine a corrected gas flow rate for the outlet pipe based on the gas pressure, ultrasonic gas flow rate, and ambient temperature, compare the current corrected gas flow rate with the previous adjacent corrected gas flow rate, and control the operating state of the normally closed solenoid valve based on the comparison result. This invention achieves automatic control of the normally closed solenoid valve and safe use of the gas-using equipment.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic gas meter technology, and more particularly to an ultrasonic gas meter and a gas management system. Background Technology

[0002] As people pay more and more attention to the environment, natural gas, as a relatively clean and environmentally friendly energy source, has received more and more attention and application. With the construction and popularization of natural gas pipelines, the application of gas meters has become more common. From mechanical to electronic, from diaphragm to ultrasonic, the continuous emergence of new concepts and technologies reflects people's pursuit of high quality. Ultrasonic gas meters, as a new model with higher technology, optimized structure and cost-effectiveness, have emerged.

[0003] In the existing technology, ultrasonic gas meters have difficulty in automatically controlling the internal solenoid valve, which affects the safe use of gas-using equipment. Summary of the Invention

[0004] This invention provides an ultrasonic gas meter and a gas management system to achieve automatic control of normally closed solenoid valves and safe use of gas-using equipment.

[0005] According to one aspect of the present invention, an ultrasonic gas meter is provided, the ultrasonic gas meter comprising:

[0006] Integrated testing module, normally closed motor valve and control module;

[0007] The first end of the normally closed motor valve is connected to the main gas pipe through the gas inlet pipe, and the second end of the normally closed motor valve is connected to the gas-using equipment through the gas outlet pipe; the gas-using equipment includes gas stoves and water heaters.

[0008] The integrated detection module is electrically connected to the first end of the control module, and the second end of the control module is electrically connected to the normally closed motor valve. The integrated detection module is used to detect the gas pressure, ultrasonic gas flow rate and ambient temperature of the gas outlet pipeline in real time, and transmit the gas pressure, ultrasonic gas flow rate and ambient temperature of the gas outlet pipeline to the control module.

[0009] The control module is used to determine the corrected gas flow rate of the gas outlet pipeline based on the gas pressure, ultrasonic gas flow rate and ambient temperature, compare the current corrected gas flow rate with the previous adjacent corrected gas flow rate, and control the working state of the normally closed motor valve based on the comparison result.

[0010] Furthermore, the integrated testing module includes:

[0011] Pressure detection module, flow detection module, and temperature detection module;

[0012] The pressure detection module, flow detection module, and temperature detection module are respectively connected to the first end of the control module; the pressure detection module is used to detect the gas pressure of the gas outlet pipeline in real time and transmit the gas pressure to the control module; the flow detection module is used to determine the ultrasonic gas flow rate of the gas outlet pipeline according to the ultrasonic detection method and transmit the ultrasonic gas flow rate to the control module; the temperature detection module is used to detect the ambient temperature around the ultrasonic gas meter in real time and transmit the ambient temperature to the control module.

[0013] Furthermore, the control module is used for:

[0014] The difference between the previous adjacent corrected gas flow rate and the current corrected gas flow rate is used to determine the gas flow rate difference.

[0015] If the gas flow difference is within the first preset flow range, a first opening signal is sent to the normally closed motor valve to control the normally closed motor valve to open so that the gas stove can work normally.

[0016] If the gas flow difference is within the second preset flow range, a second opening signal is sent to the normally closed motor valve to control the normally closed motor valve to open so that the water heater can work normally.

[0017] If the gas flow difference is within the third preset flow range, a third open signal is sent to the normally closed motor valve to control the normally closed motor valve to open so that the gas stove and water heater can work normally.

[0018] Furthermore, the control module is used for:

[0019] If the difference in gas flow rate is greater than the first preset gas flow rate, the normally closed motor valve will be closed.

[0020] Furthermore, ultrasonic gas meters also include:

[0021] Bluetooth module;

[0022] The control module connects to the water heater via Bluetooth.

[0023] The control module is used to control the normally closed motor valve to open when it receives a water heater turn-on signal transmitted by the Bluetooth module.

[0024] Furthermore, ultrasonic gas meters also include:

[0025] Alarm module;

[0026] The alarm module is connected to the control module;

[0027] The control module is used for:

[0028] When the difference in gas flow rate is greater than the first preset gas flow rate, a first alarm signal is sent to the alarm module to control the alarm module to perform the first alarm processing.

[0029] Furthermore, the control module is used for:

[0030] When the normally closed motor valve is in the closed state, if the current corrected gas flow rate is less than the corrected gas flow rate at the previous moment and this continues for a first preset time, a second alarm signal is sent to the alarm module to control the alarm module to perform a second alarm processing.

[0031] Furthermore, the control module is used for:

[0032] If the ambient temperature is greater than or equal to the preset ambient temperature, the normally closed motor valve will be closed, and a first alarm signal will be sent to the alarm module to control the alarm module to perform the third alarm processing.

[0033] Furthermore, ultrasonic gas meters also include:

[0034] Power module; The power module is connected to the integrated testing module, normally closed motor valve, and control module;

[0035] The power supply module is used to power the integrated detection module, normally closed motor valve, and control module.

[0036] According to another aspect of the present invention, a gas management system is provided, the gas management system including a pre-meter valve, a post-meter valve, and an ultrasonic gas meter as described in any of the above embodiments;

[0037] The first end of the ultrasonic gas meter is connected to the gas main pipe through the valve before the meter, and the second end of the ultrasonic gas meter is connected to the gas-using equipment through the valve after the meter.

[0038] The ultrasonic gas meter provided in this embodiment of the invention includes a comprehensive detection module, a normally closed solenoid valve, and a control module. The comprehensive detection module detects the gas pressure, ultrasonic gas flow rate, and ambient temperature of the gas outlet pipeline in real time, and transmits these parameters to the control module. The control module determines a corrected gas flow rate for the gas outlet pipeline based on these parameters, compares the current corrected gas flow rate with the previous adjacent corrected gas flow rate, and controls the operating state of the normally closed solenoid valve based on the comparison result. This achieves automatic control of the normally closed solenoid valve and safe use of gas-consuming equipment.

[0039] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the internal structure of an ultrasonic gas meter according to an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the internal structure of another ultrasonic gas meter provided according to an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of the internal structure of another ultrasonic gas meter according to an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram of the internal structure of another ultrasonic gas meter provided according to an embodiment of the present invention;

[0045] Figure 5 This is a schematic diagram of the internal structure of another ultrasonic gas meter provided according to an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram of a gas management system according to an embodiment of the present invention. Detailed Implementation

[0047] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0048] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention 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 so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a 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.

[0049] This invention provides an ultrasonic gas meter. Figure 1 This is a schematic diagram of the internal structure of an ultrasonic gas meter according to an embodiment of the present invention, with reference to... Figure 1 The ultrasonic gas meter 01 includes:

[0050] Integrated detection module 1, normally closed motor valve 2, and control module 3;

[0051] The first end of the normally closed motor valve 2 is connected to the main gas pipe 4 through the gas inlet pipe 21, and the second end of the normally closed motor valve 2 is connected to the gas-using equipment 5 through the gas outlet pipe 22; wherein, the gas-using equipment 5 includes a gas stove and a water heater;

[0052] The first end of the integrated detection module 1 is electrically connected to the first end of the control module 3, and the second end of the control module 3 is electrically connected to the normally closed motor valve 2. The integrated detection module 1 is used to detect the gas pressure, ultrasonic gas flow rate and ambient temperature of the gas outlet pipeline 22 in real time, and transmit the gas pressure, ultrasonic gas flow rate and ambient temperature of the gas outlet pipeline to the control module 3.

[0053] The control module 3 is used to determine the corrected gas flow rate of the gas outlet pipeline 22 based on the gas pressure, ultrasonic gas flow rate and ambient temperature, compare the current corrected gas flow rate with the previous adjacent corrected gas flow rate, and control the working state of the normally closed motor valve 2 based on the comparison result.

[0054] Specifically, the integrated detection module 1 transmits the real-time detected gas pressure, ultrasonic gas flow rate, and ambient temperature of the outlet pipe 22 to the control module 3. Since the ultrasonic gas flow rate is affected by the gas pressure and ambient temperature in the outlet pipe 22 during the determination process, the control module 3 recalculates a more accurate corrected gas flow rate based on the gas pressure, ambient temperature, and detected ultrasonic gas flow rate. It then compares the calculated current corrected gas flow rate with the previous adjacent corrected gas flow rate and controls the working state of the normally closed motor valve 2 based on the comparison result. For example, the difference between the previous adjacent corrected gas flow rate and the current corrected gas flow rate can be calculated first to determine the gas flow rate difference. Then, it is determined whether the gas flow rate difference is within the set preset flow rate range, and the normally closed motor valve is controlled to open based on the determination result. The number of preset flow rate ranges can be set according to the actual situation, and this embodiment of the invention does not limit this.

[0055] The ultrasonic gas meter 01 provided in this embodiment of the invention includes a comprehensive detection module 1, a normally closed solenoid valve 2, and a control module 3. The comprehensive detection module 1 detects the gas pressure, ultrasonic gas flow rate, and ambient temperature of the gas outlet pipeline 22 in real time, and transmits the gas pressure, ultrasonic gas flow rate, and ambient temperature of the gas outlet pipeline to the control module 3. The control module 3 determines the corrected gas flow rate of the gas outlet pipeline 22 based on the gas pressure, ultrasonic gas flow rate, and ambient temperature, compares the current corrected gas flow rate with the previous adjacent corrected gas flow rate, and controls the working state of the normally closed solenoid valve 2 based on the comparison result, thereby realizing the automatic control of the normally closed solenoid valve 2 and the safe use of the gas-using equipment 5.

[0056] Furthermore, Figure 2 This is a schematic diagram of the internal structure of another ultrasonic gas meter according to an embodiment of the present invention, for reference. Figure 2 The comprehensive testing module includes:

[0057] Pressure detection module 11, flow detection module 12 and temperature detection module 13;

[0058] The pressure detection module 11, flow detection module 12, and temperature detection module 13 are respectively connected to the first end of the control module 3; the pressure detection module 11 is used to detect the gas pressure of the gas outlet pipeline 22 in real time and transmit the gas pressure to the control module 3; the flow detection module 12 is used to determine the ultrasonic gas flow rate of the gas outlet pipeline 22 according to the ultrasonic detection method and transmit the ultrasonic gas flow rate to the control module 3; the temperature detection module 13 is used to detect the ambient temperature around the ultrasonic gas meter 01 in real time and transmit the ambient temperature to the control module 3.

[0059] Specifically, the control module 3 can calculate a more accurate corrected gas flow rate based on the gas pressure of the gas outlet pipe 22 detected in real time by the pressure detection module 11, the ultrasonic gas flow rate of the gas outlet pipe 22 determined in real time by the flow detection module 12 using the ultrasonic detection method, and the ambient temperature around the ultrasonic gas meter 01 detected in real time by the temperature detection module 13.

[0060] Furthermore, the control module is used for:

[0061] The difference between the previous adjacent corrected gas flow rate and the current corrected gas flow rate is used to determine the gas flow rate difference.

[0062] If the gas flow difference is within the first preset flow range, a first opening signal is sent to the normally closed motor valve to control the normally closed motor valve to open so that the gas stove can work normally.

[0063] If the gas flow difference is within the second preset flow range, a second opening signal is sent to the normally closed motor valve to control the normally closed motor valve to open so that the water heater can work normally.

[0064] If the gas flow difference is within the third preset flow range, a third open signal is sent to the normally closed motor valve to control the normally closed motor valve to open so that the gas stove and water heater can work normally.

[0065] Specifically, if the calculated gas flow difference falls within the first preset flow range, it indicates that the gas stove is being used, and the normally closed solenoid valve can be opened to ensure the gas stove operates normally. If the calculated gas flow difference falls within the second preset flow range, it indicates that the water heater is being used, and the normally closed solenoid valve can be opened to ensure the water heater operates normally. If the calculated gas flow difference falls within the third preset flow range, it indicates that both the gas stove and water heater are being used simultaneously, and the normally closed solenoid valve can be opened to ensure both the gas stove and water heater operate normally. The initial flow rates of the user's gas stove and water heater can be acquired and determined through a self-learning program set within the control module, thereby determining the first, second, and third preset flow ranges.

[0066] Furthermore, the control module is used for:

[0067] If the difference in gas flow rate is greater than the first preset gas flow rate, the normally closed motor valve will be closed.

[0068] Specifically, if the gas flow difference is greater than the first preset gas flow, it indicates that there is a serious gas leak on the side of the gas pipeline connected to the gas-using equipment. In this case, a shut-off signal is sent to the normally closed motor valve to control the normally closed motor valve to close during normal gas use, so as to avoid safety accidents.

[0069] Furthermore, Figure 3 This is a schematic diagram of the internal structure of another ultrasonic gas meter according to an embodiment of the present invention, with reference to... Figure 3 The ultrasonic gas meter 01 also includes:

[0070] Bluetooth module 6;

[0071] Control module 3 is connected to water heater 51 via Bluetooth module 6;

[0072] The control module 3 is used to control the normally closed motor valve 2 to open when it receives the water heater 51 turn-on signal transmitted by the Bluetooth module 6.

[0073] Specifically, after the water heater 51 is turned on, it sends a water heater turn-on signal to the control module 3 via the Bluetooth module 6. At this time, the control module 3 controls the normally closed motor valve 2 to open according to the water heater turn-on signal so that the water heater 51 can work normally.

[0074] Furthermore, Figure 4 This is a schematic diagram of the internal structure of another ultrasonic gas meter according to an embodiment of the present invention, with reference to... Figure 4 The ultrasonic gas meter 01 also includes:

[0075] Alarm module 7;

[0076] Alarm module 7 is connected to control module 3;

[0077] Control module 3 is used for:

[0078] When the gas flow difference is greater than the first preset gas flow, a first alarm signal is sent to the alarm module 7 to control the alarm module 7 to perform the first alarm processing.

[0079] Specifically, when the gas flow difference is greater than the first preset gas flow, it indicates that there is a serious gas leak on the side of the gas outlet pipeline 22 connected to the gas-using equipment 5. At this time, the control alarm module 7 will perform the first alarm to remind the user that the gas leak is serious and needs to be dealt with in time to avoid causing a safety accident.

[0080] Furthermore, the control module is used for:

[0081] When the normally closed motor valve is in the closed state, if the current corrected gas flow rate is less than the corrected gas flow rate at the previous moment and this continues for a first preset time, a second alarm signal is sent to the alarm module to control the alarm module to perform a second alarm processing.

[0082] Specifically, when the normally closed motor valve is in the closed state, if the current corrected gas flow rate is less than the corrected gas flow rate at the previous moment and continues for a first preset time, it indicates that there is a gas leak on the side of the gas pipeline connected to the gas-using equipment. At this time, the control alarm module will perform a second alarm to remind the user to promptly investigate and handle the leak in order to avoid causing a safety accident.

[0083] Furthermore, the control module is used for:

[0084] If the ambient temperature is greater than or equal to the preset ambient temperature, the normally closed motor valve will be closed, and a first alarm signal will be sent to the alarm module to control the alarm module to perform the third alarm processing.

[0085] Specifically, if the detected ambient temperature is greater than or equal to the preset ambient temperature, it indicates that the ambient temperature around the ultrasonic gas meter is high, posing a fire risk. In this case, the normally closed motor valve can be closed to avoid a safety accident. At the same time, the alarm module is controlled to perform a third alarm to remind the user to conduct a timely fire risk investigation and reduce safety hazards.

[0086] Furthermore, Figure 5 This is a schematic diagram of the internal structure of another ultrasonic gas meter according to an embodiment of the present invention, for reference. Figure 5 The ultrasonic gas meter 01 also includes:

[0087] Power module 8; Power module 8 is connected to integrated detection module 1, normally closed motor valve 2 and control module 3;

[0088] Power module 8 is used to supply power to integrated detection module 1, normally closed motor valve 2 and control module 3.

[0089] Specifically, the power module 8 can be a rechargeable battery or a power connection device. This embodiment of the invention does not limit this. For example, if the power module 8 is a power connection device, then the integrated detection module 1, the normally closed motor valve 2 and the control module 3 are powered by connecting the power module 8 to an external power source.

[0090] This invention provides a gas management system. Figure 6 This is a schematic diagram of a gas management system according to an embodiment of the present invention. The gas management system includes a pre-meter valve 91, a post-meter valve 92, and an ultrasonic gas meter 01 as described in any of the above embodiments.

[0091] The first end of the ultrasonic gas meter 01 is connected to the gas main pipe 4 through the pre-meter valve 91, and the second end of the ultrasonic gas meter 01 is connected to the gas-using equipment 5 through the post-meter valve 92.

[0092] Among them, the inlet valve 91 and the outlet valve 92 are normally open valves. For example, when the ultrasonic gas meter 01 needs to be repaired, the inlet valve 91 needs to be closed to prevent gas leakage in the gas main pipe 4; while when the gas-using equipment 5 needs to be repaired, the outlet valve 92 needs to be closed to prevent gas leakage in the gas outlet pipe 21.

[0093] The gas management system designed in this embodiment of the invention includes a pre-meter valve 91, a post-meter valve 92, and an ultrasonic gas meter 01 as described in any of the above embodiments. By connecting the first end of the ultrasonic gas meter 01 to the gas main pipe 4 through the pre-meter valve 91, and connecting the second end of the ultrasonic gas meter 01 to the gas-using device 5 through the post-meter valve 92, not only is automatic control of the normally closed solenoid valve 2 inside the ultrasonic gas meter 01 and safe use of the gas-using device 5 realized, but also safety detection of the ultrasonic gas meter 01 and the gas-using device 5 is realized.

[0094] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0095] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An ultrasonic gas meter, characterized in that, include: Integrated testing module, normally closed motor valve and control module; The first end of the normally closed motor valve is connected to the main gas pipe through an inlet pipe, and the second end of the normally closed motor valve is connected to the gas-using equipment through an outlet pipe; wherein, the gas-using equipment includes a gas stove and a water heater; The integrated detection module is electrically connected to the first end of the control module, and the second end of the control module is electrically connected to the normally closed motor valve. The integrated detection module is used to detect the gas pressure, ultrasonic gas flow rate and ambient temperature of the gas outlet pipeline in real time, and transmit the gas pressure, ultrasonic gas flow rate and ambient temperature of the gas outlet pipeline to the control module. The control module is used to determine the corrected gas flow rate of the gas outlet pipeline based on the gas pressure, ultrasonic gas flow rate and ambient temperature, compare the current corrected gas flow rate with the previous adjacent corrected gas flow rate, and control the working state of the normally closed motor valve based on the comparison result. The integrated detection module includes: Pressure detection module, flow detection module, and temperature detection module; The pressure detection module, the flow detection module, and the temperature detection module are respectively connected to the first end of the control module; the pressure detection module is used to detect the gas pressure of the gas outlet pipeline in real time and transmit the gas pressure to the control module; the flow detection module is used to determine the ultrasonic gas flow rate of the gas outlet pipeline according to the ultrasonic detection method and transmit the ultrasonic gas flow rate to the control module; the temperature detection module is used to detect the ambient temperature around the ultrasonic gas meter in real time and transmit the ambient temperature to the control module. The control module is used for: The difference between the previous adjacent corrected gas flow rate and the current corrected gas flow rate is used to determine the gas flow rate difference. If the gas flow difference is within the first preset flow range, a first opening signal is sent to the normally closed motor valve to control the normally closed motor valve to open so that the gas stove can work normally. If the gas flow difference is within the second preset flow range, a second opening signal is sent to the normally closed motor valve to control the normally closed motor valve to open so that the water heater can work normally. If the gas flow difference is within the third preset flow range, a third open signal is sent to the normally closed motor valve to control the normally closed motor valve to open, so that the gas stove and the water heater can work normally.

2. The ultrasonic gas meter according to claim 1, characterized in that, The control module is used for: If the difference in gas flow rate is greater than the first preset gas flow rate, then the normally closed motor valve is controlled to close.

3. The ultrasonic gas meter according to claim 1, characterized in that, Also includes: Bluetooth module; The control module is connected to the water heater via the Bluetooth module; The control module is used to control the normally closed motor valve to open when it receives a water heater turn-on signal transmitted by the Bluetooth module.

4. The ultrasonic gas meter according to claim 2, characterized in that, Also includes: Alarm module; The alarm module is connected to the control module; The control module is used for: When the gas flow difference is greater than the first preset gas flow, a first alarm signal is sent to the alarm module to control the alarm module to perform the first alarm processing.

5. The ultrasonic gas meter according to claim 4, characterized in that, The control module is used for: When the normally closed motor valve is in the closed state, if the current corrected gas flow rate is less than the corrected gas flow rate at the previous moment and this continues for a first preset duration, a second alarm signal is sent to the alarm module to control the alarm module to perform a second alarm processing.

6. The ultrasonic gas meter according to claim 4, characterized in that, The control module is used for: If the ambient temperature is greater than or equal to the preset ambient temperature, the normally closed motor valve is controlled to close, and a first alarm signal is sent to the alarm module to control the alarm module to perform a third alarm processing.

7. The ultrasonic gas meter according to claim 1, characterized in that, Also includes: Power module; The power module is connected to the integrated detection module, the normally closed motor valve, and the control module; The power module is used to supply power to the integrated detection module, the normally closed motor valve, and the control module.

8. A gas management system, characterized in that, Includes a pre-meter valve, a post-meter valve, and an ultrasonic gas meter as described in any one of claims 1-7; The first end of the ultrasonic gas meter is connected to the gas main pipe through the pre-meter valve, and the second end of the ultrasonic gas meter is connected to the gas-using equipment through the post-meter valve.

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