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Microflow detector and detection method

A micro-flow and detector technology, applied in the direction of liquid/fluid solid measurement, instruments, measuring devices, etc., to achieve the effect of a wide range of applicable pressure

Pending Publication Date: 2022-03-01
HEILONGJIANG AGRICUTURAL ENGINEARING VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the research and development of the present invention is to solve the problem that the existing fluid detection device cannot realize the detection of bidirectional flow in the same pipeline. A brief overview of the present invention is given below in order to provide a basic understanding of some aspects of the present invention

Method used

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  • Microflow detector and detection method

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Experimental program
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Effect test

specific Embodiment approach 1

[0055] Specific implementation mode one: combine Figure 1-Figure 17 Describe this embodiment, the microflow detector of this embodiment includes an outer casing 6, a sensor 7 and a microfluidic valve body 8, and a microfluidic valve body 8 is installed in the outer casing 6, and the microfluidic valve body 8 includes a valve body Shell 1, liquid pipe joint 2, spring 3 and valve core group 4, the inside of the valve body shell 1 is processed with a circuit 11 connected from end to end, and the two opposite corners of the circuit 11 are respectively processed with a left port 111 and a right port 112 communicates with the outside world. The left port 111 and the right port 112 are respectively equipped with liquid pipe joints 2. One end of the liquid pipe joint 2 is respectively connected to the valve core group 4 through the spring 3 inside the circuit 11. The other end of the liquid pipe joint 2 runs through the The outer shell 6 is set, and the circuit 11 is connected to the...

specific Embodiment approach 2

[0068] Specific implementation mode two: combination Figure 1-Figure 17 Describe this embodiment, based on specific embodiment 1, the micro-flow detection method of this embodiment, the micro-flow detector is installed on the pipeline where the fluid to be detected circulates, specifically:

[0069] Step 1, initial position: such as Figure 7 As shown, when the fluid to be detected in the pipeline is not flowing, the valve core groups 4 on the left and right sides of the micro-flow valve body 8 are in the initial position under the thrust of the spring 3, and the permanent magnet 5 is far away from the dry reed in the permanent magnet 5 Tube sensor 72, control panel 10 does not work;

[0070] Step 2, monitoring the flow of the fluid to be detected from left to right: as Figure 8 and 9 As shown, when the fluid to be detected in the pipeline flows from left to right, after the fluid flows into the circuit 11 from the left port 111 of the micro-flow valve body 8, the fluid t...

specific Embodiment approach 3

[0072] Specific implementation mode three: combination Figure 1-Figure 17 Describe this embodiment, based on the specific embodiment one, the micro-flow detection method of this embodiment, the micro-flow detector is installed on the pipeline where the fluid to be detected circulates, and the flow rate scale is drawn on the micro-flow valve body 8 close to the sensor 7, according to The scale on the micro-flow valve body 8 can adjust the installation position of the sensor 7 to detect micro-flow or quantitative flow, which is convenient for obtaining the detection results more intuitively, that is, the minimum switching value can be set by moving the sensor according to the scale, and when the flow reaches When the value is set, the spool opening can trigger the sensor, specifically:

[0073] Initial position: when the fluid to be detected in the pipeline is not flowing, the valve core groups 4 on the left and right sides of the micro-flow valve body 8 are in the initial posi...

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Abstract

The invention discloses a micro-flow detector and a detection method thereof and belongs to the technical field of fluid detection. The micro-flow valve comprises an outer shell, a sensor and a micro-flow valve body, the micro-flow valve body is installed in the outer shell and comprises a valve body shell, a liquid pipe connector, a spring and a valve element set, a loop communicated end to end is machined in the valve body shell, and a left side opening and a right side opening are machined in the two opposite angles of the loop respectively and communicated with the outside. The left side opening and the right side opening are each provided with a liquid pipe connector, one end of each liquid pipe connector is connected with the valve element set through a spring in the loop, the other end of each liquid pipe connector penetrates through the outer shell, and sensors are installed on the outer side walls, corresponding to the other two opposite corners, of the loop except the two opposite corners communicated with the outside. According to the invention, bidirectional flow detection can be realized in the same pipeline, the detector is suitable for detection of fluid flow conditions and very sensitive reflection of trace leakage at the same time, and leakage conditions in the system can be effectively tested.

Description

technical field [0001] The invention relates to a microflow detector and a detection method thereof, belonging to the technical field of fluid detection. Background technique [0002] Since the hydraulic system is closed and opaque, it is difficult to observe the internal operation of the system, so it is very difficult to understand the operating status of the hydraulic system and analyze the fault in practice. There are many devices on the market that can test fluid flow, such as target type, piston type flow switch and other products, which can detect the flow of fluid. [0003] The target type (baffle type) flow meter is used to detect media such as air, oil and water flowing in one or two directions. When the fluid flows through the pipeline, the baffle deflects, making the single-pole double-throw micro switch act on the set flow rate, and output the switch signal; when the two-way detection is performed, the baffle deflection pushes the magnetic module to move up, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/05G01F15/061G01M3/26
CPCG01F1/05G01F15/061G01M3/26
Inventor 管丛江李海金辛连学赵雪峰宋翔宇汪振凤赵作伟徐云邹法义
Owner HEILONGJIANG AGRICUTURAL ENGINEARING VOCATIONAL COLLEGE
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