阅读说明：本技术 无线远传自发电流量计量方法 (Wireless remote transmission self-generating current metering method ) 是由 高金良 沈畅 刁美玲 任玉莹 钟汶均 郑成志 张昭君 王晶惠 阮婷 朱光亚 马俊 于 2021-08-10 设计创作，主要内容包括：一种无线远传自发电流量计量方法,属于流量计量技术领域。本发明针对现有流量计采用外部供电方式,需消耗外部供电资源且存在断电风险的问题。包括：将涡轮发电装置设置于待监测流体内,并将流体的动能转化为电能输出；采用电流计量装置实时采集涡轮发电装置的输出电流,获得电流计量值；PLC控制器根据流量-电流标准曲线获得当前电流计量值对应的待监测流体流量。本发明确保了计量数据的实时传递并且不会造成数据丢失。(A wireless remote transmission self-generating flow metering method belongs to the technical field of flow metering. The invention aims to solve the problems that the existing flowmeter adopts an external power supply mode, external power supply resources are consumed, and power failure risks exist. The method comprises the following steps: arranging a turbine generating set in a fluid to be monitored, and converting the kinetic energy of the fluid into electric energy to be output; acquiring the output current of the turbine power generation device in real time by adopting a current metering device to obtain a current metering value; and the PLC acquires the flow of the fluid to be monitored corresponding to the current metering value according to the flow-current standard curve. The invention ensures real-time transmission of metering data and does not cause data loss.)

1. A wireless remote transmission self-generating flow measuring method is characterized by comprising the following steps,

arranging a turbine generating set in a fluid to be monitored, and converting the kinetic energy of the fluid into electric energy to be output; the method comprises the steps that a current metering device (1) is adopted to collect the output current of a turbine power generation device in real time, and a current metering value is obtained;

and the PLC (2) obtains the flow of the fluid to be monitored corresponding to the current metering value according to the flow-current standard curve.

2. The wireless remote transmission spontaneous flow metering method according to claim 1,

the turbine power generation device comprises turbine blades (3), a power generation module (4) and a lithium battery (5), wherein the turbine blades (3) drive the power generation module (4) to generate electric energy, and the electric energy is stored in the lithium battery (5).

3. The wireless remote transmission spontaneous flow metering method according to claim 2,

the current metering device (1) collects the output current of the power generation module (4) in real time to obtain a current metering value.

4. The wireless remote transmission spontaneous flow metering method according to claim 3,

the current metering device (1) is in wired connection with the PLC (2) and transmits a current metering value to the PLC (2).

5. The wireless remote transmission spontaneous flow metering method according to claim 4, characterized in that,

the PLC (2) is in wired connection with the dial (6) and displays the current metering value and the obtained fluid flow to be monitored through the dial (6).

6. The wireless remote transmission spontaneous flow measurement method according to claim 5,

the PLC controller (2) is also used for obtaining the accumulated flow of a set time period according to the flow of the fluid to be monitored and displaying the accumulated flow through a dial plate (6).

7. The wireless remote transmission spontaneous flow metering method according to claim 6,

the PLC (2) is also provided with a flow threshold value, and when the flow of the fluid to be monitored exceeds the flow threshold value, an alarm signal is displayed through the dial (6).

8. The wireless remote transmission spontaneous flow metering method according to claim 7,

the device also comprises an electronic acquisition and signaling module (7) which is used for acquiring the ammeter value, the flow of the fluid to be monitored and the accumulated flow by the PLC (2) and transmitting the ammeter value, the flow of the fluid to be monitored and the accumulated flow to an upper computer.

9. The wireless remote transmission spontaneous flow measurement method according to claim 8,

still including setting up shell (8), carry out integral type fixed mounting with turbine power generation facility, current metering device (1), PLC controller (2), electron collection signaling module (7) and dial plate (6).

10. The wireless remote transmission spontaneous flow measurement method according to claim 9,

the flow-current standard curve is a corresponding flow relation curve of current output by the turbine power generation device and target fluid under laboratory conditions.

Technical Field

The invention relates to a wireless remote transmission self-generating flow metering method, and belongs to the technical field of flow metering.

Background

The turbine power generation is a scientific technology for obtaining rotary power from fluid kinetic energy and converting the rotary power into electric energy, can be applied to rivers, lakes and dams to provide electric energy for cities, and can also be used by ordinary household users.

The flowmeter is widely applied to various places as a fluid metering tool. The flow meters widely used at present include a volumetric flow meter, a differential pressure flow meter, an electromagnetic flow meter, a vortex shedding flow meter and the like, and most of the flow meters need to be powered by a battery, a power supply and direct current or alternating current.

Because the power saving factor is considered, most of the flow meters in use at present are set to upload data once a day to reduce the use of electric quantity, which results in poor real-time performance of data acquisition; in addition, once a power failure occurs in the power supply mode of the conventional flowmeter, data cannot be uploaded and data loss is caused.

Disclosure of Invention

The invention provides a wireless remote transmission self-generating current metering method, aiming at the problems that an existing flow meter adopts an external power supply mode, external power supply resources are consumed, and power failure risks exist.

The invention relates to a wireless remote transmission self-generating flow measuring method, which comprises the following steps,

arranging a turbine generating set in a fluid to be monitored, and converting the kinetic energy of the fluid into electric energy to be output; acquiring the output current of the turbine power generation device in real time by adopting a current metering device to obtain a current metering value;

and the PLC acquires the flow of the fluid to be monitored corresponding to the current metering value according to the flow-current standard curve.

According to the wireless remote transmission self-generating flow measuring method, the turbine generating device comprises turbine blades, a generating module and a lithium battery, and the turbine blades drive the generating module to generate electric energy and store the electric energy in the lithium battery.

According to the wireless remote transmission self-generating electricity flow metering method, the current metering device collects the output current of the electricity generating module in real time to obtain a current metering value.

According to the wireless remote transmission self-generating electricity flow metering method, the current metering device is in wired connection with the PLC, and the current metering value is transmitted to the PLC.

According to the wireless remote transmission self-generating flow measuring method, the PLC is in wired connection with the dial plate, and the current metering value and the obtained fluid flow to be monitored are displayed through the dial plate.

According to the wireless remote transmission self-generating flow measuring method, the PLC is also used for obtaining the accumulated flow of a set time period according to the flow of the fluid to be monitored and displaying the accumulated flow through the dial plate.

According to the wireless remote transmission self-generating flow measuring method, the PLC also sets a flow threshold value, and when the flow of the fluid to be monitored exceeds the flow threshold value, an alarm signal is displayed through the dial plate.

The wireless remote transmission self-generating flow metering method further comprises the step of obtaining a current metering value, the flow of the fluid to be monitored and the accumulated flow from the PLC through the electronic acquisition and transmission module, and transmitting the current metering value, the flow of the fluid to be monitored and the accumulated flow to an upper computer.

The wireless remote transmission self-generating flow measuring method further comprises the step of arranging a shell, and integrally and fixedly mounting the turbine generating device, the current measuring device, the PLC, the electronic collecting and transmitting module and the dial plate.

According to the wireless remote transmission self-generating flow measuring method, the flow-current standard curve is a corresponding flow relation curve of current output by the turbine power generation device and target fluid under a laboratory condition.

The invention has the beneficial effects that: in the implementation process of the method, an external battery or a power supply is not needed to supply power to the equipment assembly. The device fully utilizes the kinetic energy of the fluid to be measured when the fluid flows to generate electric energy, the generated electric energy can be applied to supply power for each application component, the flow of the fluid can be back calculated through the measured electric energy value, the risk that the device is easy to power off in the flow measurement process is avoided, and meanwhile, the real-time transmission of measurement data is ensured and the data loss is avoided.

The method of the invention does not generate extra electric energy consumption, and is energy-saving and environment-friendly. The metering of the fluid flow is realized while the self-power generation is realized, and the self-power-generation metering device has a good application prospect.

Drawings

FIG. 1 is a flow chart of a wireless remote transmission self-generating flow measuring method according to the invention;

FIG. 2 is a schematic structural view of the implementation of the process of the present invention; in fig. 2, the lithium battery can be respectively connected with the PLC controller, the electronic collecting and signaling module, and the dial plate to provide a working power supply thereto;

FIG. 3 is a right side view of FIG. 2;

fig. 4 is a top view of fig. 2.

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.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

In a first embodiment, as shown in fig. 1 to 4, the present invention provides a wireless remote transmission self-generating flow measuring method, which comprises,

arranging a turbine generating set in a fluid to be monitored, and converting the kinetic energy of the fluid into electric energy to be output; acquiring the output current of the turbine power generation device in real time by adopting a current metering device 1 to obtain a current metering value;

the PLC 2 obtains the flow of the fluid to be monitored corresponding to the current metering value according to the flow-current standard curve.

The embodiment provides a technical scheme for measuring the amount of spontaneous current, and the method calculates the corresponding fluid flow by measuring the electric energy obtained by the turbine power generation device, thereby providing a new flow measurement idea.

In this embodiment, the PLC controller 2 prestores a flow-current standard curve before the test.

The current metering device 1 can meter the obtained instantaneous electric quantity and the accumulated electric quantity.

As an example, as shown in fig. 2 and 3, the turbine power generation device includes a turbine blade 3, a power generation module 4, and a lithium battery 5, and the turbine blade 3 drives the power generation module 4 to generate electric energy and stores the electric energy in the lithium battery 5.

In the present embodiment, the surplus power generated by the power generation module 4 can be stored in the lithium battery 5.

Due to the fact that the traditional flowmeter considers the power saving factor, data are uploaded once a day mostly, and if the traditional flowmeter meets the power failure condition, the data cannot be uploaded, the problems that data are lost, abnormal data cannot be found in time and the like can be caused. This embodiment has realized from electricity generation, and the consumer need not external battery, power and can carry out data transmission.

Assuming that the fluid is water, the turbine blades 3 are driven to rotate by the flow of the water, and at this time, the power generation module 4 generates electric energy according to the principle of a hydroelectric generator, and the electric energy is stored in the lithium battery 5. The electricity stored in the lithium battery 5 can be used for supplying power to the electronic acquisition and transmission module 7, the PLC controller 2 and the like.

Further, the current metering device 1 collects the output current of the power generation module 4 in real time to obtain a current metering value.

Further, as shown in fig. 2, the current measuring device 1 is connected to the PLC controller 2 by a wire, and transmits the current measurement value to the PLC controller 2.

The current metering device 1 records the current value in real time and can transmit the current value to the PLC 2 and the dial 6 in a wired mode.

Still further, as shown in fig. 2 and 4, the PLC controller 2 is connected to the dial 6 by wire, and displays the current metering value and the obtained flow of the fluid to be monitored through the dial 6.

Still further, as shown in fig. 4, the PLC controller 2 is further configured to obtain an accumulated flow rate for a set time period according to the flow rate of the fluid to be monitored, and display the accumulated flow rate through the dial 6.

The PLC controller 2 may obtain the accumulated fluid flow rate for a certain set period of time according to the change of the fluid flow rate.

Still further, as shown in fig. 4, the PLC controller 2 further sets a flow threshold, and displays an alarm signal through the dial 6 when the flow of the fluid to be monitored exceeds the flow threshold.

The purpose of setting the flow threshold is to prevent the fluid flow from being too large, which creates a safety hazard. An alarm can therefore be generated when the flow threshold is exceeded.

Still further, as shown in fig. 2, the method further includes obtaining the current metering value, the flow rate of the fluid to be monitored and the accumulated flow rate from the PLC controller 2 through the electronic collecting and signaling module 7, and transmitting the current metering value, the flow rate of the fluid to be monitored and the accumulated flow rate to the upper computer.

The electronic acquisition and transmission module 7 acquires data in a wired mode and can upload the acquired data to an upper computer in a wireless mode.

Still further, as shown in fig. 2 to 4, the device further comprises a housing 8, and the turbine power generation device, the current metering device 1, the PLC controller 2, the electronic collecting and transmitting module 7 and the dial 6 are integrally and fixedly mounted.

The dial 6 may be used to display in real time instantaneous flow metering values (fluid flow to be monitored), cumulative flow, amperometric values, alarm information, various transmission signals, and the like.

Still further, the flow-current standard curve is a corresponding flow relation curve of the current output by the turbine power generation device and the target fluid under the laboratory condition.

The flow-current standard curve is obtained by measuring in a laboratory before flow testing, a turbine power generation device, a current metering device and a flowmeter are arranged in a laboratory simulation pipe network, water quantity and power generation quantity corresponding to the water quantity are measured in a running water state, and a numerical relation change curve of the water quantity and the power generation quantity is drawn to obtain the flow-current standard curve.

In the implementation mode of the method, when the fluid is static, the flow change data is not generated, and the data does not need to be uploaded, so that power is not supplied to equipment, and data failure is not generated. The lithium battery in the turbine power generation device can store redundant electric quantity, and has a good application prospect.

Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.