Gas volume measurement component, method, data processing device and gas relay

Abstract

The present invention provides a gas volume measurement component, which is arranged in a fluid pipeline of a gas relay to measure the internal gas volume, and comprises: an upper pressure sensor and a lower pressure sensor, both of which are pressure-sensitive sensors; a liquid column, which is vertically arranged in the fluid pipeline, and both ends of the liquid column are in contact with the fluid pipeline, the liquid column comprises an inner cavity for accommodating the upper pressure sensor and the lower pressure sensor, and the upper pressure sensor and the lower pressure sensor are respectively arranged at the top and the bottom of the liquid column; and a plurality of through holes which are connected to the fluid pipeline are arranged on the side wall of the liquid column to ensure that the liquid levels inside and outside the liquid column are consistent and the pressures are interconnected; the present invention realizes real-time transmission and recording by presenting the gas volume data in a parameterized manner through a pressure-sensitive sensor, and solves the problem in the prior art that a gas relay which adopts a purely mechanical structure cannot record the numerical changes of the gas volume in real time, which is not conducive to fault prediction and fault analysis.

Description

Technical Field

[0001] The present invention relates to the technical field of gas relays, and in particular to a gas accumulation volume measurement component, method, data processing equipment and a gas relay. Background Art

[0002] Gas relay, also known as gas relay, is a component that uses the hot oil flow and hot air flow generated when a fault occurs in the transformer to drive the relay to operate. It is a protective component of the transformer. The gas relay is installed in the pipeline between the oil pillow and the oil tank of the transformer. If a discharge fault occurs inside the oil-filled transformer, the discharge arc causes the transformer oil to decompose, producing methane, acetylene, hydrogen, carbon monoxide, carbon dioxide, ethylene, ethane and other characteristic gases. The more serious the fault, the greater the amount of gas. After these gases are produced, they rise from the inside of the transformer to the upper oil pillow and flow through the gas relay. If the amount of gas is small, the gas accumulates in the gas relay, causing the float to drop, closing the normally open contacts of the relay, and acting on the light gas protection to issue a warning signal. If the amount of gas is large, the oil and gas rush out quickly through the gas relay, pushing the internal stopper of the gas relay to operate, closing another set of normally open contacts, and the heavy gas directly triggers the relay protection to trip, disconnect the circuit breaker, and cut off the faulty transformer.

[0003] General gas relays adopt a purely mechanical structure and are unable to display the volume of accumulated gas or record the changes in the volume of accumulated gas within the gas relay over a period of time. This is not conducive to the prediction before a fault occurs and the analysis of problems after a fault occurs. At the same time, because the internal space of the gas relay is very limited, it is difficult to set up conventional speed measurement components therein, and the service life is also difficult to meet the requirements. Summary of the invention

[0004] In view of the shortcomings of the prior art mentioned above, the technical problem to be solved by the present invention is to provide a gas volume measurement component, method, data processing equipment and gas relay, so as to solve the problem that the gas relay using a purely mechanical structure in the prior art cannot record the numerical changes of the gas volume in real time, which is not conducive to fault prediction and fault analysis.

[0005] In order to solve the above technical problems, the present invention provides a gas volume measurement component, which is arranged in a gas relay fluid pipeline to measure the internal gas volume, comprising:

[0006] An upper pressure sensor and a lower pressure sensor, both of which are pressure-sensitive sensors;

[0007] A liquid column, wherein the liquid column is vertically arranged in a fluid pipeline, and both ends of the liquid column are in contact with the fluid pipeline, the liquid column includes an inner cavity for accommodating an upper pressure sensor and a lower pressure sensor, the upper pressure sensor and the lower pressure sensor are respectively arranged at the top and the bottom of the liquid column, and are respectively used to detect the gas pressure of the upper layer of the liquid column and the overall pressure of the liquid column, wherein the overall pressure of the liquid column includes the upper gas pressure and the liquid column pressure; and a plurality of through holes connected to the fluid pipeline are arranged on the side wall of the liquid column, so as to ensure that the liquid levels inside and outside the liquid column are consistent in height and the pressures are interconnected.

[0008] As a more preferred solution, the internal gas volume measurement process includes:

[0009] Obtain the corresponding relationship between the liquid column pressure p and the internal gas volume v;

[0010] Get the current pressure values ​​at the upper pressure sensor and the lower pressure sensor, which are p1 and p2 respectively;

[0011] Obtain the current value p0 of the liquid column pressure according to the current pressure values ​​p1 and p2 at the upper pressure sensor and the lower pressure sensor;

[0012] According to the corresponding relationship between the liquid column pressure p and the internal gas volume v, the current internal gas volume v0 corresponding to the current liquid column pressure p0 is obtained.

[0013] As a more preferred solution, the internal gas volume measurement process includes:

[0014] Obtain the corresponding relationship between the liquid column pressure p and the internal gas volume v, where the corresponding fluid is released from the fluid pipeline multiple times, and the released fluid volume is equal to the corresponding gas volume v x Then, the gas volume v is calculated by the difference between the pressure values ​​p1 and p2 at the upper pressure sensor and the lower pressure sensor. x The corresponding liquid column pressure p y ; Record the values ​​at different times and fit them into v x -p y curve;

[0015] Get the current pressure values ​​at the upper pressure sensor and the lower pressure sensor, which are p1 and p2 respectively;

[0016] According to p2-p1=p0, obtain the value p0 of the current liquid column pressure;

[0017] According to v x -p y Curve, obtain the current internal gas volume v0 corresponding to the current liquid column pressure p0.

[0018] In order to solve the above problems, the present invention also provides a method for measuring the internal gas accumulation volume, comprising:

[0019] Obtaining the corresponding relationship between the pressure p of the liquid column and the internal gas volume v; wherein the pressure p of the liquid column is calculated by the difference between the pressure values ​​p1 and p2 corresponding to the upper pressure sensor and the lower pressure sensor arranged at both ends of the liquid column in the fluid pipeline, and a plurality of through holes connected to the fluid pipeline are arranged on the side wall of the liquid column to ensure that the liquid level inside and outside the liquid column is consistent and the pressure is interconnected;

[0020] Calculate the difference between the current pressure values ​​p1 and p2 at the upper pressure sensor and the lower pressure sensor to obtain the current liquid column pressure value p0;

[0021] According to the corresponding relationship between the liquid column pressure p and the internal gas volume v, the current internal gas volume v0 corresponding to the current liquid column pressure p0 is obtained.

[0022] In order to solve the above problem, the present invention further provides a data processing device, comprising:

[0023] A memory and a processor, wherein the memory is used to store a computer program and a corresponding relationship between a liquid column pressure p and an internal gas volume v, and the processor is used to execute the computer program stored in the memory so that the terminal performs the internal gas volume measurement method as described above, and the processor transmits the pressures p1 and p2 obtained at the upper pressure sensor and the lower pressure sensor to the processor;

[0024] A communication unit is connected to the processor.

[0025] As a more preferred embodiment, the data processing device also includes an A / D chip, which is connected to the processor. The A / D chip is used to detect the pressures p1 and p2 at the upper pressure sensor and the lower pressure sensor in the above-mentioned internal gas volume measurement method, and convert them into digital signals for transmission to the processor. The digital signal has the advantages of strong anti-interference and easy processing, and is more convenient for the processor to process.

[0026] As a more preferred method, the data processing device also includes a data compensation module. The pressures p1 and p2 obtained at the upper pressure sensor and the lower pressure sensor are compensated for temperature by the data compensation module and then transmitted to the processor. This can eliminate the interference of temperature on pressure and make the obtained gas accumulation volume data more accurate.

[0027] In order to solve the above problems, the present invention also provides a gas relay, comprising:

[0028] The above-mentioned gas accumulation volume measurement component, the liquid column is vertically arranged in the inner cavity of the gas relay and abuts against the side wall of the inner cavity, and the side wall of the liquid column is provided with a plurality of through holes that are connected to the inner cavity to ensure that the liquid levels inside and outside the liquid column are consistent and the pressures are mutually connected, and the upper pressure sensor and the lower pressure sensor are respectively arranged at the top and the bottom of the liquid column;

[0029] The above-mentioned data processing device, the upper pressure sensor and the lower pressure sensor are connected to the data processing device.

[0030] As a more preferred embodiment, the gas relay also includes a host computer, and the data processing device sends the obtained gas accumulation volume data to the host computer in real time through a communication unit. The host computer is used to receive the real-time gas accumulation volume data and perform subsequent processing, thereby reducing the processing pressure of the gas relay body processor. At the same time, when an abnormality occurs in the gas relay body, the gas accumulation volume data will not be lost.

[0031] As a more preferred method, the host computer records, monitors and analyzes the acquired gas volume data in real time, and issues an alarm when the gas volume data is abnormal, so that the fault can be eliminated before it occurs, thereby improving the sensitivity and safety of the gas relay.

[0032] As described above, the gas volume measurement component, method, data processing equipment and gas relay of the present invention have the following beneficial effects: the values ​​p1 and p2 obtained by the gas volume measurement component of the present invention through the upper pressure sensor and the lower pressure sensor are the pressure of the upper gas in the fluid pipeline and the pressure of the entire liquid column, wherein the pressure of the entire liquid column is the sum of the upper gas pressure and the liquid column pressure, and the liquid column pressure can be obtained by subtracting p1 from p2; the corresponding internal gas volume measurement method of the present invention releases the corresponding fluid from the fluid pipeline in multiple times, and the released fluid volume is equal to the corresponding gas volume v x Then, the gas volume v is calculated by the difference between the pressure values ​​p1 and p2 at the upper pressure sensor and the lower pressure sensor. x The corresponding liquid column pressure p y ; Record the values ​​at different times and fit them into v x -p yThe curve is obtained, and then the current internal gas volume v0 is obtained according to the corresponding relationship between the liquid column pressure p and the internal gas volume v through the current liquid column pressure value p0, wherein the calculation process is simple, resource-saving and easy to implement in hardware; the gas relay of the present invention utilizes the above-mentioned gas volume measurement component and method to present the gas volume data in a parameterized manner through a pressure-sensitive sensor, which is convenient for real-time transmission and recording, and provides the possibility for subsequent prediction of abnormalities according to data trends and reverse deduction of the cause of the problem according to abnormal data; at the same time, the gas volume measurement component has a simple structure, a small size and is light, and is very suitable for integration in gas relays with limited internal space, and the cost is also low. It is inexpensive and easy to produce, and is very suitable for mass production; furthermore, the gas volume measurement component as a whole is a solid-state test device, which is not affected by the viscosity of the fluid, has better applicability, is not easy to damage, has no wear, and has a longer service life; the gas volume measurement component, method, data processing equipment and gas relay of the present invention present the gas volume data in a parameterized manner through a pressure-sensitive sensor, thereby realizing real-time transmission and recording of the gas volume data of the gas relay, solving the problem that the gas relay using a purely mechanical structure in the prior art cannot record the numerical changes of the gas volume in real time, which is not conducive to fault prediction and fault analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram showing the installation of the gas volume measurement assembly of the present invention;

[0034] Figure 2 Shown is a schematic diagram of the internal gas volume measurement method of the present invention;

[0035] Figure 3 Shown is a schematic diagram of a data processing device of the present invention;

[0036] Figure 4 Shown is a schematic diagram of each module of the gas relay of the present invention.

[0037] Component number description

[0038] 1 Gas relay

[0039] 11 Gas volume measurement component

[0040] 111 Upper pressure sensor

[0041] 112 Pressure sensor

[0042] 113 Liquid Column

[0043] 114 Upward pressure signal transmission line

[0044] 115 Downward pressure signal transmission line

[0045] 12 Data processing equipment

[0046] 121 Processor

[0047] 122 Memory

[0048] 122a Operating System

[0049] 122b Application

[0050] 123 Communication Unit

[0051] 124 A / D Chip

[0052] 125 Data compensation module

[0053] 126 Bus system

[0054] 13 Host computer DETAILED DESCRIPTION

[0055] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0056] It should be noted that in the following description, with reference to the accompanying drawings, several embodiments of the present application are described in the accompanying drawings. It should be understood that other embodiments may also be used, and mechanical composition, structure, electrical and operational changes may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered restrictive, and the scope of the embodiments of the present application is limited only by the claims of the published patents. The terms used here are only for describing specific embodiments and are not intended to limit the present application. Spatially related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., may be used in the text to facilitate the description of the corresponding relationship between an element or feature shown in the figure and another element or feature.

[0057] In this application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "hold" and the like should be understood in a broad sense, for example, it can be 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "comprises" and "includes" indicate the presence of the described features, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. It should be further understood that the terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition occur only when a combination of elements, functions, or operations are inherently mutually exclusive in some manner.

[0059] In order to solve the problems in the above-mentioned background technology, the present invention provides a multi-gas volume measurement component, method, data processing equipment and gas relay, aiming to realize the real-time transmission and recording of the fluid volume gas volume data in the gas relay 1, and solves the problem that the gas relay 1 using a purely mechanical structure in the prior art cannot record the changes in the gas volume of the gas relay 1 in real time, which is not conducive to fault prediction and fault analysis. At the same time, in order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention is further described in detail through the following embodiments and in combination with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the invention.

[0060] like Figure 1 As shown, the present invention provides a gas volume measurement component 11, which is arranged in a fluid pipeline of a gas relay 1 to measure the internal gas volume, including:

[0061] An upper pressure sensor 111 and a lower pressure sensor 112, both of which are pressure-sensitive sensors;

[0062] A liquid column 113, wherein the liquid column 113 is vertically arranged in the fluid pipeline, and both ends of the liquid column 113 are in contact with the fluid pipeline, the liquid column 113 includes an inner cavity for accommodating an upper pressure sensor 111 and a lower pressure sensor 112, the upper pressure sensor 111 and the lower pressure sensor 112 are respectively arranged at the top and the bottom of the liquid column 113, and are respectively used to detect the upper gas pressure of the liquid column 113 and the overall pressure of the liquid column 113, wherein the overall pressure of the liquid column 113 includes the upper gas pressure and the pressure of the liquid column 113; and a plurality of through holes communicated with the fluid pipeline are arranged on the side wall of the liquid column 113, so as to ensure that the liquid levels inside and outside the liquid column 113 are consistent in height and the pressures are interconnected.

[0063] The values ​​p1 and p2 obtained by the gas volume measuring component 11 of the present invention through the upper pressure sensor 111 and the lower pressure sensor 112 are the pressure of the upper gas in the fluid pipeline and the overall pressure of the liquid column 113, wherein the overall pressure of the liquid column 113 is the sum of the pressure of the upper gas and the pressure of the liquid column 113. The pressure of the liquid column 113 can be obtained by subtracting p1 from p2.

[0064] In this embodiment, the internal gas accumulation volume measurement process includes:

[0065] Obtaining the corresponding relationship between the pressure p of the liquid column 113 and the internal gas volume v;

[0066] The current pressure values ​​at the upper pressure sensor 111 and the lower pressure sensor 112 are obtained as p1 and p2 respectively;

[0067] Obtain the current value p0 of the pressure of the liquid column 113 according to the current pressure values ​​p1 and p2 at the upper pressure sensor 111 and the lower pressure sensor 112;

[0068] According to the corresponding relationship between the pressure p of the liquid column 113 and the internal gas volume v, the current internal gas volume v0 corresponding to the current pressure p0 of the liquid column 113 is obtained.

[0069] In this embodiment, the internal gas accumulation volume measurement process includes:

[0070] Obtain the corresponding relationship between the pressure p of the liquid column 113 and the internal gas volume v, wherein the corresponding fluid is released from the fluid pipeline multiple times, and the released fluid volume is equal to the corresponding gas volume v x Then, the accumulated gas volume v is calculated by the difference between the pressure values ​​p1 and p2 at the upper pressure sensor 111 and the lower pressure sensor 112. x The corresponding liquid column 113 pressure p y; Record the values ​​at different times and fit them into v x -p y curve;

[0071] The current pressure values ​​at the upper pressure sensor 111 and the lower pressure sensor 112 are obtained as p1 and p2 respectively;

[0072] According to p2-p1=p0, the value p0 of the current pressure of the liquid column 113 is obtained;

[0073] According to v x -p y Curve, obtain the current internal gas volume v0 corresponding to the current liquid column 113 pressure p0.

[0074] In order to solve the above problems, Figure 2 As shown, the present invention also provides a method for measuring the internal gas accumulation volume, comprising:

[0075] S11: Obtaining the corresponding relationship between the pressure p of the liquid column 113 and the internal gas volume v; wherein the pressure p of the liquid column 113 is calculated by the difference between the pressure values ​​p1 and p2 corresponding to the upper pressure sensor 111 and the lower pressure sensor 112 disposed at both ends of the liquid column 113 in the fluid pipeline, and a plurality of through holes communicating with the fluid pipeline are disposed on the side wall of the liquid column 113 to ensure that the liquid levels inside and outside the liquid column 113 are consistent in height and the pressures are mutually communicated;

[0076] S12: Calculate the difference between the current pressure values ​​p1 and p2 at the upper pressure sensor 111 and the lower pressure sensor 112 to obtain the current value p0 of the pressure of the liquid column 113;

[0077] S13: According to the corresponding relationship between the pressure p of the liquid column 113 and the internal gas volume v, the current internal gas volume v0 corresponding to the current pressure p0 of the liquid column 113 is obtained.

[0078] The corresponding internal gas volume measurement method of the present invention is to release the corresponding fluid from the fluid pipeline multiple times, and the released fluid volume is equal to the corresponding gas volume v x Then, the accumulated gas volume v is calculated by the difference between the pressure values ​​p1 and p2 at the upper pressure sensor 111 and the lower pressure sensor 112. x The corresponding liquid column 113 pressure p y ; Record the values ​​at different times and fit them into v x -p y The curve is obtained by calculating the value p0 of the current pressure of the liquid column 113 according to the corresponding relationship between the pressure p of the liquid column 113 and the internal gas volume v, wherein the calculation process is simple, resource-saving and easy to implement in hardware.

[0079] In order to solve the above problem, the present invention further provides a data processing device 12, comprising:

[0080] A memory 122 and a processor 121, wherein the memory 122 is used to store a computer program and a corresponding relationship between the pressure p of the liquid column 113 and the internal gas volume v, and the processor 121 is used to execute the computer program stored in the memory 122 so that the terminal executes the internal gas volume measurement method as described above, and the processor 121 transmits the pressures p1 and p2 obtained at the upper pressure sensor 111 and the lower pressure sensor 112 to the processor 121;

[0081] A communication unit connected to the processor 121 .

[0082] In this embodiment, if Figure 3 As shown, the various components in the device are coupled together via a bus system 126. It is understood that the bus system 126 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 126 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 3 Various buses are labeled as bus system 126 .

[0083] In this embodiment, the data processing device 12 further includes an A / D chip 124, which is connected to the processor 121, and the A / D chip 124 is used to obtain the pressures p1 and p2 at the upper pressure sensor 111 and the lower pressure sensor 112 in the internal gas volume measurement method, and convert them into digital signals and transmit them to the processor 121. The digital signal has the advantages of strong anti-interference and easy processing, and is more convenient for the processor 121 to process. More specifically, in this embodiment, if Figure 1 As shown, the pressures p1 and p2 at the upper pressure sensor 111 and the lower pressure sensor 112 of the accumulated gas volume measuring component 11 are respectively transmitted to the A / D chip 124 through the upper pressure signal transmission line 114 and the lower pressure signal transmission line 115; in this embodiment, the A / D chip 124 is not used to obtain the digital signal, and the analog signal is directly transmitted to the processor 121 for processing.

[0084] In this embodiment, the data processing device 12 also includes a data compensation module 125. The pressures p1 and p2 obtained at the upper pressure sensor 111 and the lower pressure sensor 112 are compensated for temperature by the data compensation module 125 and then transmitted to the processor 121. This can eliminate the interference of temperature on pressure and make the obtained gas accumulation volume data more accurate.

[0085] It is understood that the memory 122 can be a volatile memory 122 or a non-volatile memory 122, and can also include both volatile and non-volatile memories 122. Among them, the non-volatile memory 122 can be a read-only memory 122 (ROM) or a programmable read-only memory 122 (PROM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory 122 (SRAM) and synchronous static random access memory 122 (SSRAM). The memory 122 described in the embodiments of the present invention is intended to include but is not limited to these and any other suitable categories of memory 122.

[0086] The memory 122 in the embodiment of the present invention is used to store various types of data to support the operation of the data processing device 12. Examples of these data include: any executable program for operating on the data processing device 12, such as an operating system 122a and an application 122b; the operating system 122a includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application 122b may include various application programs 122b for implementing various other application services. The internal gas volume measurement method provided in the embodiment of the present invention may be included in the application 122b.

[0087] The method disclosed in the above embodiment of the present invention can be applied to the processor 121, or implemented by the processor 121. The processor 121 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 121 or the instruction in the form of software. The above processor 121 may be a general processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 121 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general processor 121 may be a microprocessor or any conventional processor, etc. In combination with the steps of the accessory optimization method provided in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 122. The processor 121 reads the information in the memory 122 and completes the steps of the above method in combination with its hardware.

[0088] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to the computer program. The aforementioned computer program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

[0089] In the embodiments provided in the present application, the memory 122 may include a read-only memory, a random access memory, an EEPROM, a CD-ROM or other optical disk storage device, a magnetic disk storage device or other magnetic storage device, a flash memory, a USB flash drive, a mobile hard disk, or any other medium that can be used to store the desired program code in the form of an instruction or data structure and can be accessed by a computer. In addition, any connection can be appropriately referred to as a computer-readable medium. For example, if the instruction is sent from a website, server or other remote source using a coaxial cable, a fiber optic cable, a twisted pair, a digital subscriber line DSL, or wireless technologies such as infrared, radio and microwaves, the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio and microwaves are included in the definition of the medium. However, it should be understood that computer-readable and writable storage media and data storage media do not include connections, carriers, signals or other temporary media, but are intended to be non-temporary, tangible storage media. Disk and disc, as used in this application, includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers.

[0090] In order to solve the above problems, Figure 4 As shown, the present invention also provides a gas relay 1, comprising:

[0091] The above-mentioned gas accumulation volume measurement component 11, the liquid column 113 is vertically arranged in the inner cavity of the gas relay 1 and abuts against the side wall of the inner cavity, and the side wall of the liquid column 113 is provided with a plurality of through holes that are connected to the inner cavity, so as to ensure that the liquid levels inside and outside the liquid column 113 are consistent and the pressures are mutually connected, and the upper pressure sensor 111 and the lower pressure sensor 112 are respectively arranged at the top and the bottom of the liquid column 113;

[0092] The data processing device 12 , the upper pressure sensor 111 and the lower pressure sensor 112 are connected to the data processing device 12 .

[0093] The gas relay 1 of the present invention utilizes the above-mentioned gas accumulation volume measurement component 11 and method to present the gas accumulation volume data in a parameterized manner through a pressure-sensitive sensor, which is convenient for real-time transmission and recording, and provides the possibility for subsequent prediction of abnormalities based on data trends and inferring the cause of the invention based on abnormal data; at the same time, the gas accumulation volume measurement component 11 has a simple structure, small size and light weight, and is very suitable for integration in a gas relay 1 with limited internal space. In addition, it is low-cost and easy to produce, and is very suitable for mass production; further, the gas accumulation volume measurement component 11 as a whole is a solid-state test device, which is not affected by the viscosity of the fluid, has better applicability, is not easy to damage, has no wear, and has a longer service life.

[0094] In this embodiment, if Figure 4 As shown, the gas relay 1 also includes a host computer 13. The data processing device 12 sends the obtained gas accumulation volume data to the host computer 13 in real time through the communication unit 123. The host computer 13 is used to receive the real-time gas accumulation volume data and perform subsequent processing, thereby reducing the processing pressure of the gas relay 1 main body processor 121. At the same time, when an abnormality occurs in the gas relay 1 main body, the gas accumulation volume data will not be lost.

[0095] In this embodiment, the host computer 13 records, monitors and analyzes the acquired gas accumulation volume data in real time, and issues an alarm when the gas accumulation volume data is abnormal, so that the fault can be eliminated before it occurs, thereby improving the sensitivity and safety of the gas relay 1. In this embodiment, the host computer 13 is connected to the gas relay 1 body via a data transmission line, and can also be wirelessly connected to the gas relay 1 body via a wireless data transmission module.

[0096] In this embodiment, the gas relay 1 further includes an alarm module. When the pressure detected by the upper pressure sensor 111 is greater than a preset value, the gas relay 1 sends an alarm through the alarm module to remind the gas relay 1 that the internal gas pressure is too high and needs to be processed in time.

[0097] In summary, the gas volume measurement component, method, data processing device and gas relay of the present invention present the gas volume data in a parameterized manner through the pressure-sensitive sensor, realizing real-time transmission and recording, solving the problem that the gas relay 1 of the prior art using a purely mechanical structure cannot record the gas volume change of the gas relay 1 in real time, which is not conducive to fault prediction and fault analysis. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0098] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A gas volume measuring assembly (11), arranged in a fluid pipeline of a gas relay (1) for measuring the internal gas volume, characterized in that: include: An upper pressure sensor (111) and a lower pressure sensor (112), wherein the upper pressure sensor (111) and the lower pressure sensor (112) are both pressure-sensitive sensors; A liquid column (113), wherein the liquid column (113) is vertically arranged in a fluid pipeline, and both ends of the liquid column (113) are in contact with the fluid pipeline, and the liquid column (113) includes an inner cavity for accommodating an upper pressure sensor (111) and a lower pressure sensor (112), wherein the upper pressure sensor (111) and the lower pressure sensor (112) are respectively arranged at the top and bottom of the liquid column (113), and are used to detect the gas pressure of the upper layer of the liquid column (113) and the pressure of the liquid column (113). 13), wherein the overall pressure of the liquid column (113) includes the pressure of the upper gas layer and the pressure of the liquid column (113); and a plurality of through holes connected to the fluid pipeline are provided on the side wall of the liquid column (113) to ensure that the liquid levels inside and outside the liquid column (113) are consistent and the pressures are mutually connected; the corresponding relationship between the pressure p of the liquid column (113) and the internal gas volume v is obtained, and the corresponding fluid is released from the fluid pipeline multiple times, and the released fluid volume is equal to the corresponding gas volume v x The accumulated gas volume v is then calculated by the difference between the pressure values ​​p1 and p2 at the upper pressure sensor (111) and the lower pressure sensor (112). x The corresponding liquid column (113) pressure p y ; Record the values ​​at different times and fit them into v x -p y curve, obtain the current pressure values ​​at the upper pressure sensor (111) and the lower pressure sensor (112) as p1 and p2 respectively; according to p2-p1=p0, obtain the current value p0 of the pressure of the liquid column (113); according to v x -p y Curve, obtain the current internal gas volume v0 corresponding to the current liquid column (113) pressure p0.

2. A method for measuring internal gas volume, characterized in that: include: The gas volume measurement assembly (11) described in claim 1 is used to obtain the corresponding relationship between the pressure p of the liquid column (113) and the internal gas volume v; wherein the pressure p of the liquid column (113) is calculated by the difference between the pressure values ​​p1 and p2 corresponding to the upper pressure sensor (111) and the lower pressure sensor (112) disposed at both ends of the liquid column (113) in the fluid pipeline; Calculate the difference between the current pressure values ​​p1 and p2 at the upper pressure sensor (111) and the lower pressure sensor (112), and obtain the current value p0 of the pressure of the liquid column (113); According to the corresponding relationship between the pressure p of the liquid column (113) and the internal gas volume v, the current internal gas volume v0 corresponding to the current pressure p0 of the liquid column (113) is obtained.

3. A data processing device (12), characterized in that include: A memory (122) and a processor (121), wherein the memory (122) is used to store a computer program and a corresponding relationship between the pressure p of the liquid column (113) and the internal gas volume v, and the processor (121) is used to execute the computer program stored in the memory (122) so that the terminal executes the internal gas volume measurement method as claimed in claim 2, and the processor (121) transmits the pressures p1 and p2 obtained at the upper pressure sensor (111) and the lower pressure sensor (112) to the processor (121); A communication unit is connected to the processor (121).

4. The data processing device (12) according to claim 3, characterized in that: The data processing device (12) further comprises an A / D chip (124), wherein the A / D chip (124) is connected to the processor (121), and the A / D chip (124) is used to obtain the pressures p1 and p2 at the upper pressure sensor (111) and the lower pressure sensor (112) in the measurement method according to claim 2, and convert them into digital signals for transmission to the processor (121).

5. The data processing device (12) according to claim 3, characterized in that: The data processing device (12) further comprises a data compensation module (125), and the pressures p1 and p2 obtained at the upper pressure sensor (111) and the lower pressure sensor (112) are compensated according to temperature by the data compensation module (125) and then transmitted to the processor (121).

6. A gas relay (1), characterized in that: include: The gas volume measurement assembly (11) as claimed in claim 1, wherein the liquid column (113) is vertically arranged in the inner cavity of the gas relay (1) and abuts against the side wall of the inner cavity, and a plurality of through holes communicating with the inner cavity are arranged on the side wall of the liquid column (113) to ensure that the liquid levels inside and outside the liquid column (113) are consistent and the pressures are mutually connected, and the upper pressure sensor (111) and the lower pressure sensor (112) are respectively arranged at the top and the bottom of the liquid column (113); The data processing device (12) according to any one of claims 3 to 5, wherein the upper pressure sensor (111) and the lower pressure sensor (112) are connected to the data processing device (12).

7. The gas relay (1) according to claim 6, characterized in that: The gas relay (1) also includes a host computer (13), and the data processing device (12) sends the obtained gas accumulation volume data to the host computer (13) in real time via a communication unit (123).

8. The gas relay (1) according to claim 7, characterized in that: The host computer (13) records, monitors and analyzes the acquired gas accumulation volume data in real time, and issues an alarm when the gas accumulation volume data is abnormal.

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