CN205941144U - Filter equipment of survey aquatic oil class - Google Patents

Abstract

The utility model discloses a filter equipment of survey aquatic oil class belongs to the determination field of aquatic oil class. This kind of new filter equipment includes an aperture footpath glass psammitolite funnel and an utensil stopper ground erlenmeyer flask that has the glass cover of ground glass stopper, an aperture 150um's large aperture glass psammitolite funnel, an aperture 20um. The glass portion of covering has ground glass stopper, and the lower part has the bayonet socket and links to each other step by step with large aperture glass psammitolite funnel and aperture footpath glass psammitolite funnel, and the export links to each other with the ground erlenmeyer flask. The utility model provides an individual sealed transition ring border, the extractant carbon tetrachloride's that has significantly reduced volatilization loss has improved analysis results's accuracy, adopt two kinds of aperture glass psammitolite funnels successively to filter step by step, solved and adopted G1 molding sand core funnel to filter a difficult problem that crystalline sulfuric acid sodium granule and emulsification layer granule jam psammitolite layer easily appear in the active standard. The device simple structure, convenient to use, the solvent loss is little, and the degree of accuracy of survey aquatic oil class is high.

Description

A kind of filter measuring water petrochina class

Technical field

The utility model is related to a kind of filter measuring water petrochina class, belongs to the determination techniques neck of water petrochina class Domain.

Background technology

Existing water petrochina alanysis method（Infrared spectrophotometer HJ637-2012）The adsorbing separation step of middle offer Suddenly there are two kinds, respectively magnesium silicate directly adsorbs-G1 type sand core funnel filtration separation and extract crosses the absorption of adsorption of magnesium silicate post Separate.Because adsorption of magnesium silicate post preparation trouble, the rate of filtration are slow, complex operation, the problems such as be not suitable for batch sample and analyze, so It is directly added into magnesium silicate and be widely used with the method that glass sand core funnel directly filters in extract.

But the G1 molding sand core funnel filter device adopting in current standard is uncovered opening, extract carbon tetrachloride Highly volatile, filter process solvent loss amount is big, has a strong impact on the accuracy of measurement result；Filtered from G1 type sand core funnel, The emulsified particles occurring during extraction turbid water sample and the sodium sulphate particle of water suction crystallization easily block core layer, lead to the rate of filtration Slowly even it is difficult to filter.

Authorization Notice No. is that the Chinese utility model patent of CN205340214 discloses one kind always oily extraction equipment, this dress Put including a pyriform funnel, a sand core funnel and a volumetric flask, in sand core funnel, be provided with anhydrous sodium sulfate layer, integral installation Put that structure is simple, easy to use, but this device is the improvement on the basis of GB/T16488-1996 analytical standard, because of core leakage Bucket filter is still that opening is open in environment, equally exists produced problem in above-mentioned HJ637-2012 analytical standard, mistake Filtering velocity degree is slow and accuracy that analyze mensure is not high.

Content of the invention

For solving problems of the prior art, the utility model provides that a kind of structure is simple, easy to use, solvent Loss is little, measure the high filter of the water petrochina class degree of accuracy.

The utility model be employed technical scheme comprise that：A kind of filter measuring water petrochina class, it mainly includes One carries the cloche of ground glass stopper, large aperture glass sand core funnel, a small-bore glass sand core funnel and Individual ground conical flask.Described cloche top carry ground glass stopper, bottom carry bayonet socket and with large aperture glass sand core funnel Upper latch notch be connected, the under bayonet of large aperture glass sand core funnel is connected with the upper latch notch of small-bore glass sand core funnel, aperture The under bayonet of footpath glass sand core funnel is connected with tool plug ground conical flask.The internal diameter of described cloche bottom bayonet socket and large aperture glass The upper latch notch external diameter of glass sand core funnel is consistent, the under bayonet external diameter of large aperture glass sand core funnel and small-bore glass sand core funnel Upper latch notch internal diameter consistent, the under bayonet external diameter of small-bore glass sand core funnel is consistent with the internal diameter of ground conical flask.Described mill Between mouth glass stopper and cloche, all closely it is connected between each several part bayonet socket.

The aperture of the core layer of described large aperture glass sand core funnel and small-bore glass sand core funnel be not be 150um with 20um, its large pore glass sand core funnel can filter out the anhydrous sodium sulfate particle of the crystallization that absorbs water in experiment, emulsion layer Grain and part magnesium silicate granule, small-bore glass sand core funnel can all filter to be worn from large aperture glass sand core funnel core layer The part magnesium silicate granule crossed.

The beneficial effects of the utility model are：Provide the filtration environment of a sealing, decrease extractant carbon tetrachloride Volatilization loss, improve the accuracy of measurement result；Successively adopt two kinds of aperture sand core funnel cascade filtrations, solve existing In standard, sodium sulfate crystal particle and emulsion layer particle easily block a difficult problem for funnel core layer.This apparatus structure is simple, user Just, solvent loss is little, and the degree of accuracy measuring water petrochina class is high.

Brief description

With reference to Fig. 1, the utility model is further illustrated.

Fig. 1 is a kind of schematic diagram of the filter measuring water petrochina class

In figure, 1, cloche, 1a ground glass stopper, 2, large aperture glass sand core funnel, 2a, aperture are the core of 150um Layer, 3, small-bore glass sand core funnel, 3a, aperture are the core layer of 20um, 4, tool plug ground conical flask.

Specific embodiment

Fig. 1 shows a kind of schematic diagram of the filter measuring water petrochina class.In figure filter includes cloche 1st, large aperture glass sand core funnel 2, small-bore glass sand core funnel 3 and tool plug ground conical flask 4.The outlet of described cloche 1 It is connected with the upper latch notch of large aperture glass sand core funnel 2 by bayonet socket, the outlet of large aperture glass sand core funnel 2 and small-bore glass The upper latch notch of glass sand core funnel 3 connects, and the outlet of small-bore glass sand core funnel 3 is connected with tool plug ground conical flask 4.Large aperture Glass sand core funnel 2 is contained within the core layer 2a that aperture is 150um, and it is 20um that small-bore glass sand core funnel 3 is contained within aperture Core layer 3a.

Operating process using technique scheme is as follows：When measuring water petrochina class, extracted by current standard After absorption, the extract containing magnesium silicate is poured in large aperture glass sand core funnel 2, and covers rapidly cloche 1, extract The core layer 2a for 150um for the via hole diameter flows in small-bore glass sand core funnel 3 after filtering, and via hole diameter is the core layer 3a of 20um Flow into after filtration in tool plug ground conical flask 4.When extract is sufficiently bulky, also first partial extraction liquid can be poured into large aperture glass In glass sand core funnel 2, cover rapidly cloche 1, after a period of time to be filtered, open ground glass stopper 1a and remaining extract is fallen Enter.

Described cloche 1 is used for covering the top of large aperture glass sand core funnel 2 it is ensured that the sealing of filter process, Described glass stopper 1a is easy to midway and is added extract.

The aperture of described core layer 2a is 150um, can filter sodium sulphate particle, emulsion layer particle and the part silicon of crystallization Sour magnesium granules, the aperture of described core layer 3a can all filter, for 20um, the part magnesium silicate granule passing through from core layer 2a. Different pore size filters step by step twice, and core layer will not block, and the rate of filtration is fast, and color solution interference is little.

Claims (2)

1. a kind of filter measuring water petrochina class carries ground glass it is characterised in that including one from top to bottom successively Glass plug（1a）Cloche（1）, an inside contain aperture 150um core layer（2a）Large aperture glass sand core funnel（2）, one Aperture 20um core layer is contained in individual inside（3a）Small-bore glass sand core funnel（3）With a tool plug ground conical flask（4）.

2. a kind of filter measuring water petrochina class according to claim 1 is it is characterised in that described cloche （1）Bottom carry bayonet socket and with large aperture glass sand core funnel（2）Upper latch notch be connected, cloche（1）The internal diameter of bottom bayonet socket With large aperture glass sand core funnel（2）Upper latch notch external diameter consistent；Large aperture glass sand core funnel（2）Under bayonet and small-bore Glass sand core funnel（3）Upper latch notch be connected, large aperture glass sand core funnel（2）Under bayonet external diameter and small-bore glass core Funnel（3）Upper latch notch internal diameter consistent；Small-bore glass sand core funnel（3）Under bayonet with tool plug ground conical flask（4）It is connected, Small-bore glass sand core funnel（3）Under bayonet external diameter and ground conical flask（4）Internal diameter consistent.