CN2388992Y

CN2388992Y - Filtering funnel

Info

Publication number: CN2388992Y
Application number: CN 99243878
Authority: CN
Inventors: 张韬
Original assignee: Sinopec Research Institute of Petroleum Processing; China Petrochemical Corp
Current assignee: Sinopec Research Institute of Petroleum Processing; China Petrochemical Corp
Priority date: 1999-08-31
Filing date: 1999-08-31
Publication date: 2000-07-26
Anticipated expiration: 2009-08-31

Abstract

The utility model relates to a filtering funnel, which comprises an interlayer (2) which is composed of an inner wall and an outer wall, a filter plate (3) which is arranged in the funnel, and a coil pipe (1) which is arranged in the interlayer (2), wherein, both ends of the coil pipe are extended out of the outer wall of the funnel, the coil pipe is connected with a heat conducting liquid pipeline of a cooling device by a pipeline, so heat conducting liquid is led in and the funnel can be cooled; the interlayer of the funnel is provided with a temperature sensor so filtration can be done by the funnel under prescribed temperature. The utility model is suitable for filtering and dewaxing lubricating oil.

Description

Filter tunnel

The utility model is a kind of filter tunnel, specifically, is a kind of filter tunnel that is applicable to lubricating oil dewaxing that has interlayer.

Generally contain paraffin or ceresine in the lube cut.The existence of wax directly influences the flowability of lubricating oil under cryogenic conditions, and therefore, must dewax to lube cut just can reach instructions for use.Simple process for dewaxing is that lube cut is filtered at low temperatures, filters the wax that becomes solid under the low temperature.Dewaxing funnel commonly used is lubricated the dewaxing experiment of oily fraction in the laboratory, and this funnel constitutes interlayer by inside and outside wall, and filter plate places in the funnel.With conductive fluid, be generally the interlayer that ethanol is put into funnel during use, during the dewaxing refrigeration dry ice put into ethanol, dry ice absorbs a large amount of heats because of dissolving, and causes the lube cut in the funnel to cool off rapidly, and wax is separated out and filtered.Though this funnel is simple in structure, add dry ice in when operation ethanol in interlayer, ethanol can violent boiling, and the ethanol of boiling is easily general goes into funnel internal contamination filtrate.Use ethanol-dry ice simply to freeze, cryogenic temperature is regulated inaccurate, and dewaxing effect is not good.Above-mentioned funnel itself in addition, needs to remove the wax in the funnel after the filtration, owing to the character that wax itself is had often need funnel is carried out heat treated, and can not heat voluntarily, can only place it in the container to heat, and makes troubles to cleaning operation.

The purpose of this utility model provides a kind of can not polluting to filtrate again by cold filtration, and can carry out the filter tunnel of heated wash.

The filter tunnel that the utility model provides comprises the interlayer that is made of inside and outside two walls, be located at the coil pipe in the interlayer and place filter plate in the funnel.

Fill body lotion in the described funnel interlayer.Coil pipe shape coiling in the shape of a spiral, material is glass or metal pipe material.The two-port of coil pipe is stretched out by the outer wall of interlayer, links to each other by the import and export of pipeline with the refrigerating plant circulating pump.Described refrigerating plant is the refrigeration machine that has circulating pump and bath, fills conductive fluid in the bath of this machine, conductive fluid is squeezed into the coil pipe that places in the interlayer by the circulating pump of refrigeration machine.The conductive fluid that enters coil pipe is absorbed heat in a large number, by the body lotion in funnel interlayer conduction, funnel temperature is descended rapidly, can filter after waiting to reach predetermined temperature.Filtration finishes, and when cleaning funnel, can utilize the heating function of refrigerating plant to feed conductive fluid in coil pipe funnel is heated.

Described body lotion and conductive fluid all are selected from methyl alcohol, ethanol or ethylene glycol, preferred ethylene glycol.

For accurately controlling bath temperature, place the temperature sensor that links to each other with temperature controller in the body lotion in interlayer, and the valve by the temperature controller gauge tap is set on coil pipe conductive fluid suction line.

Conduct heat evenly for making cold filtration or cleaning heating, be preferably in and place paddle in the interlayer, paddle preferably is placed on the place near the interlayer bottom.

Describe the utility model in detail below in conjunction with accompanying drawing, but the utility model is not limited to this.

Fig. 1 is the cross-sectional view of filter tunnel described in the utility model.

Fig. 2 is the use schematic diagram of the utility model funnel.

As shown in Figure 1, the interlayer 2 that constitutes by inside and outside two walls of the funnel that provides of the utility model, be located at the coil pipe 1 in the interlayer and place the filter plate 3 in the funnel to form.Described coil pipe 1 is the glass tube of shape coiling in the shape of a spiral, and its height is suitable to the height at funnel top with filter plate.Coil pipe 1 is positioned over the center of interlayer, and its two ports stretch out from the funnel outer wall respectively, and wherein the lower end outlet is the inlet 4 of conductive fluid, and the upper end outlet is the outlet 5 of conductive fluid.

As shown in Figure 2, when using the utility model funnel to be lubricated oil dewaxing, earlier temperature sensor 9 is suspended in the funnel interlayer 2, the paddle with agitator 10 inserts interlayer to bottom interlayer again.Temperature sensor 9 is linked to each other with temperature controller 7, conductive fluid inlet 4, outlet 5 usefulness pipelines link to each other with the import and export pipe joint of refrigerating plant bath circulating pump and form the loop, and between conductive fluid inlet 4 and refrigerating plant the valve 8 by the temperature controller gauge tap are set.When dewaxing is filtered, in the funnel interlayer, put into body lotion ethylene glycol earlier, temperature controller is adjusted to desired filtration temperature.Start refrigerating plant 6, open valve 8, conductive fluid is flowed back to refrigerating plant 6 and forms the loop through exporting 5 by coil pipe 1 by inlet 4.Turn on agitator 10 is so that body lotion temperature up and down is more even, and temperature sensor 9 feeds back to temperature controller with bath temperature, and temperature controller is according to the switch of the temperature control valve of setting 8, the temperature of control funnel.Behind the temperature stabilization, can under the temperature of setting, filter dewaxing to lubricating oil.

The refrigeration machine that the above-mentioned German Lauda of refrigerating plant 6 employings company produces, the conductive fluid of using is ethylene glycol.If refrigerating plant itself has temperature-adjusting device, also the coil pipe in the funnel described in the utility model 1 directly can be imported and exported pipeline with the circulating pump of refrigerating plant and link to each other, by regulating the design temperature controlled filter temperature of refrigerating plant.

If use the refrigeration machine of band heating function, when behind cold filtration, needing to clean funnel, utilize the heating function of refrigerating plant to heat to funnel, melt residual solid wax in it.

The utility model is compared tool owing to be provided with coil pipe in the interlayer of funnel with existing dewaxing funnel Have the following advantages: 1, by the drain in the coil pipe body lotion in the funnel interlayer is cooled off, therefore can Accurate controlled filter temperature. 2, do not make the body lotion refrigeration owing to do not need in funnel, to place dry ice, can not cause bath Liquid is excessive and pollute filtrate. The heating function that 3, can utilize refrigerating plant easily heated funnel carries out clearly Wash.

The funnel that the utility model provides is applicable to the low temperature dewaxing of lubricating oil, also is applicable to other oil product Dewaxing treatment.

Claims

1, a kind of filter tunnel comprises the interlayer (2) that is made of inside and outside two walls, places the filter plate (3) in the funnel, it is characterized in that being provided with in the described interlayer (2) coil pipe (1).

2,, it is characterized in that the funnel outer wall is stretched out at the two ends of coil pipe (1) according to the described funnel of claim 1.

3, according to claim 1 or 2 described funnels, it is characterized in that the lower port that coil pipe stretches out the funnel outer wall is a conductive fluid inlet (4), upper port is conductive fluid outlet (5).

4,, it is characterized in that being provided with in the described interlayer temperature sensor (9) according to claim 1 or 2 described funnels.

5,, it is characterized in that being provided with in the described interlayer agitator (10) according to claim 1 or 2 described funnels.