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Multipath liquid sampler

A liquid sampling and liquid feeding technology, applied in the field of chemical analysis and quantitative analysis, can solve the problems of measurement error, time-consuming and labor-intensive, affecting real-time monitoring, etc.

Inactive Publication Date: 2015-04-15
JIANGSU JIANGFEN ELECTROANALYTICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In conventional chemical analysis, the solution is usually pipetted manually, which is time-consuming and laborious, and may also cause measurement errors, affecting real-time monitoring
With the acceleration of industrial and agricultural modernization, the accuracy and timeliness of analytical test data are getting higher and higher. Traditional manual testing can no longer meet the current needs. This requires a multi-channel liquid sampling device that can meet the requirements of modern chemical analysis.

Method used

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  • Multipath liquid sampler

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Embodiment Construction

[0012] according to figure 1 As shown, a multi-channel liquid sampling device, which includes: motor (1), shaft (2), piston (3), pumping cylinder (4), connecting piece (5) (8), quantitative tube (6) , liquid level detector (7), multi-way block (9), liquid inlet solenoid valve (15) (16), liquid outlet solenoid valve (18). The motor is connected to the shaft. Under the control of the microcomputer, the motor drives the shaft to move up and down. The lower end of the shaft is equipped with a piston, which is slidingly fitted with the air pump. The lower end of the air pump is connected to the upper end of the quantitative tube through a connecting piece (5). , the multi-way block is under the metering tube, its upper end suction port (10) is connected with the lower end of the metering tube through a connector (8), and the liquid inlet (11) (12) is respectively connected to the liquid inlet solenoid valve (15), (16) are connected, the liquid outlet (19) is connected with the liq...

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PUM

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Abstract

The invention discloses a multipath liquid sampler and belongs to the technical field of chemical analysis and quantitative analysis. The multipath liquid sampler can be used for realizing automation of a liquid addition system of an instrument, or automatic quantitative addition of various test solutions in an analysis test. The multipath liquid sampler is characterized in that the multipath liquid sampler can be controlled by a microcomputer; a motor drives a shaft rod to move up and down; a lower end of the shaft rod is provided with a piston; the piston is in a slip fit relationship with an air exhaust cylinder; when the shaft rod moves up, liquid inlet solenoid valves for taken solutions are opened so that the taken solutions orderly pass through the liquid inlet solenoid valves and a multipath block under the action of ambient pressure and then enter into a quantitative tube; and when the shaft rod moves down, the liquid inlet solenoid valves are closed and a liquid outlet solenoid valve is opened so that the taken solution passes through the liquid outlet solenoid valve from a liquid outlet and then is poured into an appointed container and thus solution sampling is finished. The multipath block of the multipath liquid sampler can be communicated with the multiple liquid inlet solenoid valves so that respective taking of a plurality of solutions is realized. The multipath liquid sampler has a simple structure and good stability and can be widely used for an automatic liquid addition system of an instrument and analysis tests.

Description

technical field [0001] The invention relates to a multi-channel liquid sampling device, which belongs to the technical field of chemical analysis and quantitative analysis. Background technique [0002] The multi-channel liquid sampling device is an automatic, non-contact device that can quantitatively pipette various liquids separately. It is used to realize the automation of the liquid addition system in instruments and meters or the automatic quantitative addition of various test solutions in analytical tests. In conventional chemical analysis, the solution is usually pipetted manually, which is time-consuming and laborious, and may also cause measurement errors and affect real-time monitoring. With the acceleration of industrial and agricultural modernization, the accuracy and timeliness of analytical test data are getting higher and higher. Traditional manual testing can no longer meet the current needs. This requires a multi-channel liquid sampling device that can meet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N35/02
Inventor 朱培德
Owner JIANGSU JIANGFEN ELECTROANALYTICAL INSTR