阅读说明：本技术 一种调节阀声波监测流量的系统和方法 (System and method for regulating valve sound wave monitoring flow ) 是由 李卫东 王保民 杨豫森 于 2020-11-23 设计创作，主要内容包括：本发明公开一种调节阀声波监测流量的系统和方法；所述系统包括：调节阀,安装于流体管道中；所述调节阀,包括执行机构和阀体部件；声波传感器,安装于对应调节阀处,用于采集对应调节阀处声波信号并传输给信号传输装置；信号传输装置,用于接收声波传感器采集的声波信号并发送给声波数据分析平台；声波数据分析平台,用于通过接收信号传输装置上传的声波信号监测调节阀的流量。本发明通过相对便宜的声波传感器,实现实时的调节阀流量监测,不会给流体管道带来阻力和故障点。避免了常规流量测量设备昂贵,并给流体系统带来附加阻力的问题。(The invention discloses a system and a method for regulating valve sound wave monitoring flow; the system comprises: a regulating valve installed in the fluid pipeline; the regulating valve comprises an actuating mechanism and a valve body component; the acoustic wave sensor is arranged at the position corresponding to the regulating valve and used for acquiring acoustic wave signals at the position corresponding to the regulating valve and transmitting the acoustic wave signals to the signal transmission device; the signal transmission device is used for receiving the sound wave signals collected by the sound wave sensor and sending the sound wave signals to the sound wave data analysis platform; and the sound wave data analysis platform is used for monitoring the flow of the regulating valve by receiving the sound wave signals uploaded by the signal transmission device. The invention realizes real-time flow monitoring of the regulating valve by a relatively cheap sound wave sensor, and can not bring resistance and fault points to a fluid pipeline. The problems of expensive conventional flow measuring equipment and additional resistance to the fluid system are avoided.)

1. A system for regulating valve acoustic monitoring flow, comprising:

a regulating valve (2) installed in the fluid pipe (100); the regulating valve comprises an actuating mechanism and a valve body component;

the acoustic wave sensor (3) is arranged at the position corresponding to the regulating valve and used for acquiring acoustic wave signals at the position corresponding to the regulating valve and transmitting the acoustic wave signals to the signal transmission device;

the signal transmission device is used for receiving the sound wave signals collected by the sound wave sensor and sending the sound wave signals to the sound wave data analysis platform;

and the sound wave data analysis platform (1) is used for monitoring the flow of the regulating valve by receiving the sound wave signals uploaded by the signal transmission device.

2. The system of claim 1, wherein the regulator valve is a pneumatic, electric, or hydraulic regulator valve.

3. The system for regulating valve acoustic monitoring flow of claim 1, wherein the regulating valve is one of a straight-through single-seat valve, a straight-through double-seat valve, a sleeve valve, a ball valve, a butterfly valve, an eccentric rotary valve, a linear valve, an equal percentage valve, a parabolic valve, and a quick-open valve.

4. The system for acoustically monitoring flow with a regulator valve of claim 1, wherein the acoustic sensor is any one or a combination of a listener, a microphone, a micro-displacement electrical signal acoustic sensor, a surface acoustic wave sensor, a dynamic pressure sensor, an acoustic frequency sensor, an acoustic pressure sensor, an acoustic intensity sensor, or an acoustic power sensor.

5. The system of regulating valve acoustic monitoring flow of claim 4, wherein the surface acoustic wave sensor is embodied as any one or combination of a Rayleigh wave sensor, a fiber optic sensor, a piezoelectric array sensor, a tangential horizontal plate mode sensor, a lamb wave sensor, or a love wave sensor.

6. The system of claim 1, wherein the acoustic sensor is disposed inside or outside the regulator valve proximate the valve spool.

7. The system of claim 1, wherein said acoustic sensor has an ID code corresponding to a geographic information code of a geographic location of said acoustic sensor; and geographic information coding information and model information corresponding to the regulating valve are added when the sound wave sensor transmits the collected sound wave signals.

8. The system for regulating valve acoustic monitoring flow of claim 6, wherein the acoustic data analysis platform further comprises a display unit; the display unit is used for displaying the position of each regulating valve and the corresponding sound wave signal.

9. The system of claim 1, wherein the acoustic data analysis platform analyzes the flow of the regulating valve by:

and the acoustic wave data analysis platform calculates the flow of the regulating valve under the condition of the pressure before the given valve by utilizing a pre-fitted correlation formula of the acoustic wave signals and the flow of the regulating valve of the type to be analyzed under the condition of the pressure before the given valve.

10. A method of regulating a valve for acoustically monitoring a flow, characterized by a system for acoustically monitoring a flow based on a regulating valve according to any one of claims 1 to 8; the method specifically comprises the following steps:

s11: installing a regulating valve and an acoustic wave sensor thereof on a flow calibration experiment platform;

s12: debugging a regulating valve and various sensors thereof as well as a data acquisition system of a flow calibration experiment platform, and removing noise interference;

s13: debugging pressure sensors at the front and the back of the regulating valve and calibrating flow sensors of the experiment platform to meet the calibration requirement;

s14: monitoring acoustic signals collected by an acoustic sensor of the regulating valve under the conditions of different pre-valve pressures and different regulating valve flows;

s15: under the condition of fixing the front pressure of the regulating valve, correlating the flow of the regulating valve with the sound wave signal of the regulating valve to obtain a fitting curve of the flow of the regulating valve and the sound wave signal; the pressure before the regulating valve is changed, so that a plurality of fitting curves can be obtained;

s16: in the actual detection process, a corresponding fitting curve is found according to the pressure in front of the regulating valve with the model to be monitored, and the flow of the corresponding regulating valve is calculated according to the monitored sound wave signal.

Technical Field

The invention relates to the technical field of regulating valve monitoring, in particular to a system and a method for regulating valve sound wave monitoring flow.

Background

Flow measurement is an important component of measurement science and technology, and has been widely applied to various fields such as industrial and agricultural production, environmental protection, scientific research, foreign trade, people's life and the like, and accurate and rapid flow measurement has an important role in ensuring product quality, improving economic benefit, saving energy, promoting development of science and technology and the like. In the increasingly prominent era of energy crisis, the status and role of flow measurement in national economy become more and more important. Flow measurement has been receiving extensive attention and intensive research as one of the key technologies in industrial processes. Common flow meters include differential pressure flow meters, positive displacement flow meters, rotameters, electromagnetic flow meters, ultrasonic flow meters, coriolis flow meters, and the like, with differential pressure flow meters being the most widely studied. Differential pressure flow meters are meters that measure flow based on the differential pressure generated by a flow sensing member installed in a pipe, known fluid conditions, and the geometry of the sensing member and the pipe.

A regulating valve is a variable resistance element in a piping system. By changing the opening of the valve, the working characteristics of the pipeline system can be changed, thereby achieving the purposes of adjusting the flow and changing the pressure. Regulating valves are indispensable fluid control devices in national economic departments such as petroleum, chemical industry, power stations, long-distance pipelines and the like. Compared with other basic industrial equipment such as pumps, compressors and the like, the regulating valve has a simpler structure and is therefore not always paid attention.

The flow detection of the current regulating valve is generally realized by a flowmeter, but the common flowmeter is expensive and brings additional resistance and fault points to the pipeline system.

Disclosure of Invention

The invention aims to provide a system and a method for regulating a valve to monitor flow by sound waves, which aim to solve the technical problem of a fluid pipeline caused by adopting a flowmeter to measure the flow in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a system for regulating valve acoustic monitoring flow, comprising:

a regulating valve installed in the fluid pipeline; the regulating valve comprises an actuating mechanism and a valve body component;

the acoustic wave sensor is arranged at the position corresponding to the regulating valve and used for acquiring acoustic wave signals at the position corresponding to the regulating valve and transmitting the acoustic wave signals to the signal transmission device;

the signal transmission device is used for receiving the sound wave signals collected by the sound wave sensor and sending the sound wave signals to the sound wave data analysis platform;

and the sound wave data analysis platform is used for monitoring the flow of the regulating valve by receiving the sound wave signals uploaded by the signal transmission device.

The invention further improves the following steps: the regulating valve is a pneumatic regulating valve, an electric regulating valve or a hydraulic regulating valve.

The invention further improves the following steps: the regulating valve is one of a straight-through single-seat valve, a straight-through double-seat valve, a sleeve valve, a ball valve, a butterfly valve, an eccentric rotary valve, a linear valve, an equal-percentage valve, a parabolic valve and a quick-opening valve.

The invention further improves the following steps: the sound wave sensor is any one or combination of a listening device, a pickup, a micro displacement electric signal sound sensor, a surface sound wave sensor, a dynamic pressure sensor, a sound wave frequency sensor, a sound wave sound pressure sensor, a sound wave sound intensity sensor or a sound wave sound power sensor.

The invention further improves the following steps: the surface acoustic wave sensor is specifically any one or combination of a Rayleigh wave sensor, an optical fiber sensor, a piezoelectric array sensor, a tangential horizontal plate mode sensor, a lamb wave sensor or a love wave sensor.

The invention further improves the following steps: the sound wave sensor is arranged inside or outside the regulating valve and close to the valve core.

The invention further improves the following steps: the acoustic wave sensor is provided with an ID code, and the ID code corresponds to a geographic information code of the geographic position of the acoustic wave sensor; and geographic information coding information and model information corresponding to the regulating valve are added when the sound wave sensor transmits the collected sound wave signals.

The invention further improves the following steps: the acoustic wave data analysis platform further comprises a display unit; the display unit is used for displaying the position of each regulating valve and the corresponding sound wave signal.

The invention further improves the following steps: the acoustic data analysis platform analyzes and obtains the flow of the regulating valve by the following method:

and the acoustic wave data analysis platform calculates the flow of the regulating valve under the condition of the pressure before the given valve by utilizing a pre-fitted correlation formula of the acoustic wave signals and the flow of the regulating valve of the type to be analyzed under the condition of the pressure before the given valve.

A method for regulating a valve to monitor flow by sound waves specifically comprises the following steps:

s11: installing a regulating valve and an acoustic wave sensor thereof on a flow calibration experiment platform;

s12: debugging a regulating valve and various sensors thereof as well as a data acquisition system of a flow calibration experiment platform, and removing noise interference;

s13: debugging pressure sensors at the front and the back of the regulating valve and calibrating flow sensors of the experiment platform to meet the calibration requirement;

s14: monitoring acoustic signals collected by an acoustic sensor of the regulating valve under the conditions of different pre-valve pressures and different regulating valve flows;

s15: under the condition of fixing the front pressure of the regulating valve, correlating the flow of the regulating valve with the sound wave signal of the regulating valve to obtain a fitting curve of the flow of the regulating valve and the sound wave signal; the pressure before the regulating valve is changed, so that a plurality of fitting curves can be obtained;

s16: in the actual detection process, a corresponding fitting curve is found according to the pressure in front of the regulating valve with the model to be monitored, and the flow of the corresponding regulating valve is calculated according to the monitored sound wave signal.

Compared with the prior art, the invention has the following beneficial effects:

1) through the relatively cheap sound wave sensor, real-time monitoring of the flow of the regulating valve is realized, and resistance and fault points cannot be brought to a fluid pipeline. The problems of expensive conventional flow measuring equipment and additional resistance to the fluid system are avoided.

2) According to the self structural characteristics of the regulating valve, the acoustic wave sensor is directly additionally arranged in the structure of the regulating valve, so that the real-time and low-cost online monitoring of the fluid devices is realized.

3) For the regulating valve, the corresponding relation between the acoustic wave signals and the flow under the conditions of the pre-valve pressure and the opening of the regulating valve determined by calibration of the calibration platform is utilized, and the acoustic wave sensor can be utilized to realize the coarse measurement of the flow of the regulating valve with low price.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic diagram of a system for regulating valve acoustic flow monitoring according to the present invention;

FIG. 2 is a schematic structural view of a regulator valve according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a fitting curve of the flow rate of the regulating valve and the sound wave signal of the regulating valve according to the embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, the present invention provides a system for regulating a valve to monitor flow rate by sound wave, comprising:

a regulating valve 2; the regulating valves are arranged in the fluid pipeline 100 at intervals;

the acoustic wave sensor 3, each regulating valve is fitted with at least one acoustic wave sensor; the sound wave sensor is arranged inside or outside the regulating valve and close to the valve core; each acoustic wave sensor is provided with an ID code, and the ID code corresponds to a geographic information code of the geographic position of the acoustic wave sensor; and geographic information coding information and model information corresponding to the regulating valve are added when the sound wave sensor transmits the collected sound wave signals.

The signal transmission device is used for receiving the sound wave signals collected by the sound wave sensor and sending the sound wave signals to the sound wave data analysis platform;

the acoustic wave data analysis platform 1 is arranged in a remote monitoring room and is connected with a signal transmission device in a wired or wireless mode; and the sound wave data analysis platform is used for monitoring the flow of the regulating valve by receiving the sound wave signals uploaded by the signal transmission device. The sound wave data analysis platform further comprises a display unit, and the display unit displays the positions of the regulating valves and the corresponding sound wave signals in a pipe network simulation graph mode.

In the invention, the regulating valve can be a pneumatic regulating valve, an electric regulating valve or a hydraulic regulating valve. The regulating valve is one of a straight-through single-seat valve, a straight-through double-seat valve, a sleeve valve, a ball valve, a butterfly valve, an eccentric rotary valve, a linear valve, an equal-percentage valve, a parabolic valve and a quick-opening valve.

Referring to fig. 2, the regulating valve 2 is installed in the fluid pipeline 100 through flanges 21 at both sides; the acoustic wave sensor 3 is arranged outside the regulating valve and close to the valve core; the regulating valve comprises a regulating valve core 22 (valve body part), a regulating rod 23 and an actuating mechanism 24, and the actuating mechanism 24 is connected with the regulating valve core 22 through the regulating rod 23; the actuator 24 is connected to the remote controller through a signal transmission device, receives a command from the remote controller, and can operate and adjust the opening of the valve core 22 through the actuator 24.

In the invention, the sound wave sensor can be a listening device, a pickup, a micro-displacement electric signal sound sensor, a surface sound wave sensor, a dynamic pressure sensor, a sound wave frequency sensor, a sound wave sound pressure sensor, a sound wave sound intensity sensor or a sound wave sound power sensor.

In the present invention, the surface acoustic wave sensor device may be a rayleigh wave sensor, an optical fiber sensor, a piezoelectric array sensor 30, a tangential horizontal plate mode sensor, a lamb (lamb) wave sensor, or a love (love) wave sensor.

Example 2

The invention also provides a method for monitoring the flow of the regulating valve by using the sound wave, which is used for monitoring the flow of the regulating valve and specifically comprises the following steps:

s11: installing a regulating valve and an acoustic wave sensor thereof on a flow calibration experiment platform;

s12: debugging the regulating valve and various sensors thereof and a data acquisition system of a flow calibration experiment platform, so as to acquire sound wave signals of the qualified sound wave sensor without noise interference and meet the calibration requirement;

s13: debugging pressure sensors at the front and the back of the regulating valve and calibrating flow sensors of the experiment platform to meet the calibration requirement;

s14: monitoring acoustic signals collected by an acoustic sensor of the regulating valve under the conditions of different pre-valve pressures and different regulating valve flows; the sound wave signal comprises sound wave frequency, sound wave intensity, sound wave pressure and sound wave power;

s15: performing correlation analysis on the data: under the condition of fixing the front pressure of the regulating valve, correlating the flow of the regulating valve with the sound wave signal of the regulating valve to obtain a fitting curve; the pressure before the regulating valve is changed, so that a plurality of fitting curves can be obtained; referring to FIG. 3, the flow rate of the regulating valve is 10m when the sound wave intensity is A³S; when the sound wave intensity is B, the flow of the regulating valve is 25m³S; when the sound wave intensity is C, the flow of the regulating valve is 55m³S; the more points used the more accurate the curve you eventually sum.

S16: using another regulating valve with the same model to carry out a check experiment on the obtained fitting curve and the formula under the same experiment calibration condition;

s17: in the actual detection process, a corresponding fitting curve is found according to the pressure in front of the regulating valve of the monitored model, and the flow of the corresponding regulating valve is calculated according to the monitored sound wave signal.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The present invention provides a system and method for transporting liquid through a conduit with acoustic monitoring as described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.