Meter and valve integrated flow monitoring device and control method
A technology of flow monitoring and control method, applied in the direction of measuring device, liquid/fluid solid measurement, measuring flow/mass flow, etc., can solve the problems of long intermediate feedback time, large air pressure fluctuation, large space occupation, etc., to achieve flow feedback Short distance, fast control response time and small footprint
Pending Publication Date: 2021-10-19
常州高凯电子有限公司
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Ultrasonic flow meters are based on the principle of "speed difference method" to measure the flow of liquid in a round pipe. The meter-valve integrated flow monitoring device and control valve in the prior art are both operated independently, and need to be manually adjusted according to the data of the flow meter. Control valve, but there is a certain time difference between the data generated in the flowmeter and the adjustment of the control valve, the adjustment is very inaccurate, and the control valve needs to be adjusted many times to achieve the required flow, which is very troublesome
[0003] The previous patent CN202020139536 mentioned the flow monitoring device integrated with the meter valve, which cooperates with the ultrasonic sensor through the ball valve, but its main purpose is to solve the problem of signal attenuation. The lack of a control unit makes it impossible to control the flow.
[0004] And the patent 201010266959.1 proposes a proportional flow valve with pilot flow closed-loop control used in hydraulic pressure, but the detection efficiency and accuracy are poor
[0005] In the prior art, the valve is combined with the flowmeter. Generally, the valve and the flowmeter are set separately, and the intermediate feedback time is long. Moreover, the existing valve is mainly a solenoid valve, and the response time is slow. At the same time, the separate design takes up a lot of space and is cumbersome to install; in addition , The valve and the flowmeter are set separately and take up a lot of space, and the section of the pipeline between the valve and the flowmeter cannot control the pressure, resulting in poor overall accuracy and large air pressure fluctuations
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0037] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0038] Such as figure 1 , 2 , 3 is a meter valve integrated flow monitoring device of the present invention, comprising: a housing 1, a flow detection mechanism 2, a pilot valve 3 and a main valve 4, the housing 1 is provided with an air intake passage 11 and an inner cavity 12, The intake channel 11 communicates with the inner cavity 12, the flow detection mechanism 2 is arranged in the inner cavity 12, the inlet of the flow detection mechanism 2 communicates with the inner cavity 12, the outlet of the flow detection mechanism 2 communicates with the inlet of the main valve 4, and the main valve 4 is arranged at On the base of the housing 1 , the pilot valve 3 is arranged on the main valve 4 .
[0039] The controller is electrically connected with the flow detection mechanism 2 and the pilot valve 3, and the controller controls the opening o...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the technical field of flow monitoring, in particular to a meter and valve integrated flow monitoring device and a control method. The meter and valve integrated flow monitoring device comprises a shell, a flow detection mechanism, a pilot valve, a main valve and a controller, an air inlet channel and an inner cavity are formed in the shell, an outlet of the air inlet channel is communicated with the inner cavity, and the flow detection mechanism is arranged in the inner cavity; an inlet of the flow detection mechanism is communicated with the inner cavity, an outlet of the flow detection mechanism is communicated with an inlet of the main valve, the main valve is arranged on the shell base, and the pilot valve is arranged on the main valve; the controller is electrically connected with the flow detection mechanism and the pilot valve, and the controller controls the opening degree of the main valve through the pilot valve. The flow value of gas in the device is monitored in real time through an ultrasonic sensor, and precise control over the flow of gas output by a main valve is achieved through a PID control algorithm; and the valve and meter integrated arrangement solves the problems of long intermediate feedback time and slow response time.
Description
technical field [0001] The invention relates to the technical field of flow monitoring, in particular to a meter-valve integrated flow monitoring device and a control method. Background technique [0002] Ultrasonic flow meters are based on the principle of "speed difference method" to measure the flow of liquid in a round pipe. The meter-valve integrated flow monitoring device and control valve in the prior art are both operated independently, and need to be manually adjusted according to the data of the flow meter. Control valve, but there is a certain time difference between the data generated in the flowmeter and the adjustment of the control valve, the adjustment is very inaccurate, and the control valve needs to be adjusted many times to achieve the required flow, which is very troublesome. [0003] The previous patent CN202020139536 mentioned the flow monitoring device integrated with the meter valve, which cooperates with the ultrasonic sensor through the ball valve,...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & AuthorityApplications(China)
IPC IPC(8): G01F1/66G01F15/00
CPCG01F1/662G01F1/66G01F1/667G01F15/005G01F15/002
Inventor蒋枫方童童顾守东刘泽康刘建芳
Owner常州高凯电子有限公司