Directly-pressing fluid measuring method and measuring device

A technology of metering device and metering method, which is applied in the direction of fixed measuring room, etc., can solve the problems of poor metering accuracy, large hose damage, inconvenient cleaning, etc., and achieve the effect of no repeat error, small damage and high precision

Pending Publication Date: 2017-08-29
CHANGSHA ZENITHSUN INTELLIGENCE QUANTITATIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The existing plunger pumps are in direct contact with the fluid during operation, and at the same time there will be friction between the plunger and the pump body, which will easily mix the generated particles into the fluid, and it is inconvenient to clean
[0004] 2. Although the existing peristaltic pump can solve the sanitation problem very well, because the total metering of the peristaltic pump is completed by rolling the rollers in multiple turns, the metering accuracy is poor, generally around 2%
At the same time, the roller keeps rolling on the elastic hose, which will cause great damage to the hose

Method used

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  • Directly-pressing fluid measuring method and measuring device

Examples

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Effect test

Embodiment 1

[0045] Embodiment 1: as Figure 1 ~ Figure 3 As shown, the present invention further provides a direct pressure fluid metering device, comprising an inlet pressure pipe mechanism 1, a fixed seat 2, an elastic hose 3, a flat pressure extrusion mechanism 4 and an outlet pressure pipe mechanism 5, wherein the fluid 6 is elastically Flow in the hose 3 , one end of the elastic hose 3 is an outlet for discharging the fluid 6 , and the other end of the elastic hose 3 is an inlet for inhaling the fluid 6 . The elastic hose 3 is flatly laid on the fixing seat 2 , the two ends of the elastic hose 3 are respectively provided with an inlet pressure pipe mechanism 1 and an outlet pressure pipe mechanism 5 , and the flat pressure extrusion mechanism 4 is arranged above the elastic hose 3 .

[0046] In a specific application example, the flat pressing mechanism 4 has its own drive, so that the flat pressing mechanism 4 moves up and down to squeeze and loosen the hose, so as to complete the a...

Embodiment 2

[0049] Embodiment 2: as Figure 4 As shown, the present invention further provides a direct pressure fluid metering device, comprising an inlet pressure pipe mechanism 1, a fixed seat 2, an elastic hose 3, an inlet control valve 7 and an outlet control valve 8, wherein the fluid 6 is in the elastic hose 3 One end of the elastic hose 3 is an outlet for discharging the fluid 6 , and the other end of the elastic hose 3 is an inlet for inhaling the fluid 6 . The elastic hose 3 is flatly laid on the fixing seat 2 , and the flat pressing extrusion mechanism 4 is arranged above the elastic hose 3 .

[0050] In a specific application example, the flat pressing mechanism 4 has its own drive, so that the flat pressing mechanism 4 moves up and down to squeeze and loosen the hose, so as to complete the actions of liquid inlet and outlet.

[0051] When working, first the inlet control valve 7 is turned off, so that the inlet end of the elastic hose 3 forms a closed state; then the outlet ...

Embodiment 3

[0052] Embodiment 3: as Figure 5 ~ Figure 7 As shown, the present invention further provides a direct pressure fluid metering device, comprising an inlet pressure pipe mechanism 1, a fixed seat 2, an elastic hose 3, an upper rotary extrusion mechanism 9 and an outlet pressure pipe mechanism 5, wherein the fluid 6 is elastically Flow in the hose 3 , one end of the elastic hose 3 is an outlet for discharging the fluid 6 , and the other end of the elastic hose 3 is an inlet for inhaling the fluid 6 . The elastic hose 3 is flatly laid on the fixed seat 2, and the two ends of the elastic hose 3 are respectively provided with an upper rotary extrusion mechanism 9 and an outlet pressure pipe mechanism 5, and the flat pressing extrusion mechanism 4 is arranged above the elastic hose 3.

[0053] In a specific application example, the upper rotary extruding mechanism 9 has its own drive, and can reciprocate and rotate around a fulcrum at one end during operation, so as to squeeze and l...

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Abstract

The invention discloses a directly-pressing fluid measuring method and a measuring device. The method includes the steps that a fluid flows in an elastic hose, wherein one end of the elastic hose is an outlet and used for discharging the fluid, and the other end of the elastic hose is an inlet and used for taking the fluid in; through control over on-off states of the inlet and the outlet of the elastic hose, by means of extrusion of the elastic hose, the fluid is discharged from the elastic hose after quantified; the measured total quantity is controlled by the extruding quantity. The measuring device is used for implementing the above method. The directly-pressing fluid measuring method and the measuring device have the advantages of being simple in principle, low in cost and high in precision.

Description

technical field [0001] The invention mainly relates to the technical field of fluid metering, in particular to a high-precision, direct-pressure fluid metering method and metering device suitable for fluids. Background technique [0002] With the development of technology, many special industries have higher and higher requirements for measurement accuracy and cleanliness, such as biopharmaceutical industry, medical industry, chemical industry, etc. At present, plunger pumps and peristaltic pump technologies are generally used for precise metering of fluids. However, there are still some deficiencies in the existing methods, which greatly affect the accuracy of measurement. The existing shortcomings are: [0003] 1. The existing plunger pump is in direct contact with the fluid during operation, and at the same time there will be friction between the plunger and the pump body, which easily mixes the generated particles into the fluid, and it is inconvenient to clean. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F11/28
CPCG01F11/28
Inventor 刘振阳波
Owner CHANGSHA ZENITHSUN INTELLIGENCE QUANTITATIVE TECH CO LTD
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