CN206731145U - Reverse-suction-proof suction filtration bottle - Google Patents

Abstract

It the utility model is related to a kind of bottle,suction, and in particular to a kind of reverse-suction-proof suction filtration bottle.The bottle,suction is made up of bottleneck, suction filtration mouth, interior external bottle and dirt discharging valve.When bottle,suction works, gas is taken away via upper and lower suction filtration mouth, and two filter tip bores are thinner.When pumping body takes away fraction filtrate, filtrate is polymerized to drop at branch mouthpiece and flow back into along lower suction filtration mouth in bottle,suction in the U-shaped passage between external bottle；When bottle,suction power cut-off, the liquid emptying that dirt discharging valve valve will can flow back in work is opened；It can also be flowed to if power-off or operational error suddenly simultaneously causes vavuum pump circulating liquid to flow backwards the liquid flow backwards during into bottle,suction along lower branch mouthpiece in U-shaped passage, so as to avoid filtering the pollution to fail and to bottle,suction.

Description

Reverse-suction-proof suction filtration bottle

Technical field

The utility model belongs to chemical apparatuses apparatus field, more particularly to a kind of reverse-suction-proof suction filtration bottle.

Background technology

Separated for solid, liquid phase mixture, filtering is a kind of conventional method in laboratory.But for big molten of some concentration Liquid or in the case of condition of normal pressure filtration flow-rate is extremely slow, it need to use and be filtered under diminished pressure.Depressurized as flow velocity composition is accelerated Utensil --- the bottle,suction of device is filtered, is widely used in chemical plant, pharmaceutical factory, petrochemical industry, R＆D institution laboratory etc. to molten Liquid is filtered under diminished pressure operation.Bottle,suction often coordinates Buchner funnel to use, and shape is not both that its side surface upper part has similar to conical flask One can be connected with vavuum pump suction filtration mouth and wall thickness.During suction filtration, the external vavuum pump pumping of bottle,suction is depressurized, and liquid is quick through filter paper Flowed to from Buchner funnel in filtrate bottle.There are following two problems more prominent in the use of bottle,suction：1st, filtrate is often from suction filtration mouth Vavuum pump rubber tube is inhaled into, vavuum pump is not only polluted and greatly reduces amount of filtrate；2nd, during filtering, powering off or grasping When work error stops decompression suddenly, circulating liquid can blow back into bottle,suction and cause suction filtration to fail in vavuum pump.

The content of the invention

The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of convenience, the suction filtration with practicality Bottle.

To achieve these goals, the technical solution of the utility model is as follows：A kind of reverse-suction-proof suction filtration bottle, upper and lower branch mouth with It is connected respectively in 45° angle between interior external bottle, the liquid in experimentation Jing Guo branch mouthpiece can be flowed into U-shaped passage.

As further technical scheme, the main body is connected with dirt discharging valve, and the liquid in U-shaped passage can be through this discharge.

Suck-back phenomenon often occurs when being filtered using bottle,suction, so that bottle,suction or vacuum system are by dirt Dye, and then influence to filter effect.The utility model can also isolate waste liquid not only it is possible to prevente effectively from suck-back phenomenon.

The utility model can effectively avoid suck-back using simply, and bottle,suction and vacuum system can be protected not contaminated, have There are certain practicality and security.

Brief description of the drawings

Fig. 1 is the topology example figure of the utility model reverse-suction-proof suction filtration bottle.

Embodiment

As shown in figure 1, when bottle,suction works, the circulating liquid for liquid or the vacuum system refluence taken away can lead to by 1-2 Road is stored between inner bottle 2 and external bottle 3 and formed in U-shaped passage, do not influence filter effect while bottle,suction is shielded, Avoid polluting, the liquid retained after power cut-off can be poured out by dirt discharging valve 4.

Claims (2)

1. a kind of reverse-suction-proof suction filtration bottle, inner bottle（2）Top be bottleneck（5）, lower section and external bottle（3）It is connected, inner bottle（2） With external bottle（3）Between formed a U-shaped passage, filter mouth（1）By inner bottle（2）The suction filtration mouth in 45 ° of directions obliquely（1-1）It is and outer Bottle（3）The suction filtration mouth in 45 ° of directions obliquely（1-2）Collectively constitute, dirt discharging valve（4）With external bottle（3）It is connected, it is in taking out Filter tip（1）The lower section of opposite direction, highly a little higher than inner bottle（2）Bottom of bottle.

2. a kind of reverse-suction-proof suction filtration bottle according to claim 1, designed at the suction filtration mouth of body in 45° angle, it is characterised in that The liquid being extracted downward along lower suction filtration mouth passage can be back to interior outer blank in upper and lower suction filtration mouth infall due to Action of Gravity Field In U-shaped passage between body, avoid flowing into vacuum system and pollute；If the circulating liquid in vacuum system is because of special circumstances simultaneously Flow backwards to U-shaped passage can be flowed down into during bottle,suction, fail so as to avoid filtering.