CN1066122A

CN1066122A - Bidirectional fluid measurer

Info

Publication number: CN1066122A
Application number: CN 91102626
Authority: CN
Inventors: 吴晨钟
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-20
Filing date: 1991-04-20
Publication date: 1992-11-11

Abstract

This bidirectional fluid measurer can be used for accurately measuring the elution volume of liquid or gas, as manufactures and be used for chemico-analytic volumetric apparatus and upgrade the oil-vending device that uses in the grain and oil shop etc.It is made up of the reversal valve that can switch the flow direction, volume graduated tube, floating plug or piston, support.Fluid generally flows down from eminence, enter reversal valve and the metering usefulness the volume graduated tube after flow out.After having flowed a graduated tube, only need gently turn round valve, just can flow out continuously and measure.Reduce formality and time that liquid feeding or drawing liquid extrude, because of the graduated tube upper end closed does not have air pollution, needn't every day in the purge pipe.Because of being provided with floating plug may command zero point and quantitative liquid feeding in managing.When using piston in the graduated tube, but the discharge of measurement gas also.

Description

Bidirectional fluid measurer

The present invention is the discharge that is used for accurately measuring multiple liquid, gas.As be used for the liquid measuring vessel of the multiple liquid goods of store sales, also can be made into the titrator that chemical analysis is used.The oil-vending device that uses of grain and oil shop is the pressure-raising pump type now, and firmly pressure-raising once could be inhaled and extrudes a pipe fluid up and down, and the buret that uses of chemical analysis chamber at present also is to drip off the pipe solution of need annotating again one time.The buret upper end is an open type, and solution easily evaporates and by air pollution, needs washing every day and transposing solution.The high-order bit of the design is a short shape liquid storage bottle, and the middle part is two volume graduated tubes that the upper end is communicated with.Flow down through four-way change-over valve from eminence and flow to a pipe when opening valve solution, solution can flow out downwards simultaneously in another pipe, drip metering continuously, reduce the formality and the time of liquid feeding, again because of the upper end closed secluding air, when being used for titrimetry, needn't wash and change solution every day, reduce contaminated environment.We adopt rising liquid level reading to ooze solution, needn't wait for and having flowed, and accelerate the speed of titration again, can also extend than with volume buret graduated tube length, to improve titration precision and sensitivity.

The design is that example (as accompanying drawing) is described as follows with the titrator:

Topmost is a short shape liquid storage bottle 7, pass back joint 1D with a feed liquor conduit 4, connect four-way change-over valve shell 1b metapore, the lower end of volume graduated tube 2a and 2b is connected in two holes respectively about the 1b, and the joint 1D in the preceding hole of reversal valve connects fluid mouth 5, and there is a taper straight hole at valve casing 1b center, can closely cooperate with spool 1a, respectively there is the annular channel with reverse straight trough the 1a top and the bottom, and two annular channels are aimed at 1b two holes up and down respectively, to connect 2b and 2a.The upper and lower side of two straight troughs can cover two holes, (connection) 1b front and back, to connect mouth 5 and pipe 4, as accompanying drawing when rotating 1a.When turning round the 1a handle to the right, in the bottle 7 liquid through manage 4 and 1b metapore, 1a under annular channel and following straight trough flow to 2a and manage, 2a and 2b two inner air tubes at the same time, going up slotted eye by the 2b lower end via 1a discharges from fluid mouth 5 again, when enter 2a pipe liquid make in font floating plug 6a come-up when withstanding top trepanning 8, solution stops to enter, and inner air tube also stops to discharge from mouth 5 simultaneously.This moment the 1a handle is turned round to the left (changeing 180 °), the last two straight trough reverse directions of spool 1a, the solution that entered 1b by pipe 4 enter the 2b pipe via the last conduit of 1a, liquid in the 2a of 2b inner air tube compressing simultaneously, flow out by mouth 5 again via conduit under the 1a, treat that floating plug 6a drops to when stopping up the lower end trepanning in the 2a, solution stops to enter and flowing out.This moment, 2a just flowed out a pipe liquid, and 2b also flows to the liquid of equal volume simultaneously.Flow out a pipe liquid again as needs, only 1a is reversed 180 ° to the right again and get final product.1a is annular channel up and down, also can be made into and the rectangular through hole of straight trough.The present invention also can be made into various filling apparatus and flow instrument.With following two kinds of implementation methods:

One, volumetric apparatus: can press the accompanying drawing shaped design substantially, can be made into the graduated tube of the identical number of degrees from bottom to top in both sides, it is than equal volume buret scale segment length 20%-80%.Can be made into the multiple model that varies in size, minimum can be made into 0.1mL trace titrator.Liquid storage bottle (internal diameter should be greatly highly little) is generally used the glass manufacturing with graduated tube, lays white porcelain tile on the lower bottom base.When gas volume taking place, place x shape piston in the graduated tube, as the reading index thing of separating two ends gas as measuring with this titrator.Piston material is made with flexible wear-resisting plastics, and reversal valve is made with fluorine (F4) plastics.

Two, liquid measuring vessel: its volume graduated tube can be made into thicker, and volume is made many kinds of models of 0.05～100kg on demand.Wear-resisting, anticorrosive, nontoxic plastics or the metal of general employing made.When the big liquid of measurement gas volume or viscosity, adopt piston (volume pipe and valve are made horizontal type) in the volume pipe, prior art is adopted in the control of reversal valve, as Electromagnetic Drive, product device, has then become volumeter in fact.Its fluid also can be used pump pressure and make the above-mentioned reversal valve of flowing through.Above product all can use conventional equipment and explained hereafter.

Claims

1, a kind of bidirectional fluid measurer that is used for the flow measurement scale of construction, it comprises reversal valve, volume graduated tube, floating plug or piston, short shape liquid storage bottle and support composition.Having it is characterized in that designing can two-way flow, the four-way change-over valve of drip continuously.

2, according to the requirement of right 1, the feature of reversal valve is that valve casing [1b] front and rear gaps is respectively overlapped a joint [1D], to connect feed tube [4] and fluid mouth [5].Two holes up and down of valve casing both sides are connected the two ends of volume graduated tube and two annular channels of [1a] respectively.

3, according to the requirement of right 1, the feature of spool [1a] is the annular channel that respectively there is one reverse straight trough of band top and the bottom, and when reversing [1a] half-turn, two straight troughs are shifted one's position, and can change direction of flow.(annular channel also can be made into and the rectangular through hole of straight trough.）

4, according to the requirement of right 1, the feature of volume graduated tube [2a] and [2b] is that an end links to each other, and two pipes or a pipe have volume markings, and the scale two ends are provided with the trepanning [8] of energy and floating plug cooperation.

5, according to the requirement of right 1, floating plug is middle font or sphere, can stop up scale two ends trepanning when fluctuating.

6, according to the requirement of right 1, place the support [3] under [7], top is square translucent cover, the middle part valve seat is divided into plinth.