CN2193199Y - Micro-hole filering device - Google Patents

Abstract

The utility model provides a micro-hole filtering device. The utility model is characterized in that the micro-hole filtering device comprises a filter core with an inner cavity and a connecting piece connected with the filter core, and a micro hole communicated with the inner cavity is arranged on the wall of the filter core which is made of metal powder or alloy powder through sintering. The micro-hole filtering device has high filtering precision, strong penetrating capability, high pressure and temperature applicability, easy and repeated regeneration and use and strong corrosion-resisting performance, and the utility model can be used for the high-precision filtering of petroleum industries, chemical industries, metallurgical industries, electronic industries, electric power industries, aerial industries, medical industries, food industries, etc.

Description

Micro-hole filering device

The utility model relates to a kind of filtration and the high-precision micropore filter element that separates various fluids, be mainly used in the high-accuracy filtration of industries such as oil, chemical industry, metallurgy, electronics, electric power, aviation, medicine, food.

Along with science and technology development, every profession and trade further improves the requirement that is used for gas one separation admittedly, liquid one solid separation, the separation of gas one liquid, liquid-liquid separation, gas one gas separating device spare.Need ultrapure, hyperfine processing as semiconductor element in the electronics industry, Control of Impurities such as the fine suspension of micron order, submicron order, microorganism, bacterium and colloid get quite strict in the used high purity water.Filter element, secondary filter device commonly used can not satisfy it and filter needs.

Use more micro porous filtration device at present and generally adopt fibrous material, plastics, pottery, glass material are made.The filter that fibrous material is made is that the barrier effect with the absorption of fiber and fiber filtering layer stops passing through of solia particle, but intensity is low, easy deformation, be difficult to guarantee filtering accuracy, and serviceability temperature is low, the rate of filtration is slow, enter fibrolaminar particulate and be difficult to remove, the regeneration difficulty needs often to change; Though the filter element that plastic porous material is made has strainability preferably, because of its intensity is low, serviceability temperature is low, only is suitable for the condition of work of low pressure reduction, low temperature; Material such as porous ceramics, glass is crisp, and anti-thermal shock and through performance are poor and can not weld, and is difficult to reprocessing, has limited the range of application that adopts the filter element that these materials make greatly.

In view of above reason, the purpose of this utility model is in order a kind of filtering accuracy height, strong through ability to be provided, to be suitable for pressure, Applicable temperature height, the micro porous filtration device that easy repeated regeneration uses.

The filter core that contains inner chamber, the connector that is connected with filter core are arranged in the utility model, the micropore that communicates with inner chamber is arranged on element wall, filter core adopts metal dust or alloy powder sintering to make (referring to Fig. 1-Figure 10), select diameter, the structure length of filter core that different metal, alloy powder make and connected mode, selection filter core, the size in aperture for use according to different applying working conditions, both can singly prop up (single group) and use, also can many (many groups) use.

Above-mentioned filter core is tubulose (referring to Fig. 1, Fig. 2, Fig. 6).

One end of above-mentioned tubulose filter core is closed (referring to Fig. 2).

Several or dozens of filter core unit are arranged in the above-mentioned filter core, and each filter core unit is fastened by two spill filter discs and forms the cavity (referring to Fig. 8) that connector is through on each filter core unit successively and the aperture that communicates with the filter core inner chamber is arranged on it and communicate with aperture.

During filtration, both can adopt external-compression type also can adopt inner pressed.External-compression type is exactly the outside of the stoste (the maybe gas that need filter) of certain pressure at filter core, clear liquid (or the gas that has filtered) enters the filter core inner chamber by micro channel crisscross on the element wall, by the passage discharge filter that communicates with inner chamber, the impurity in the stoste mouth (the maybe gas that need filter) is then held back by filter core.Inner pressed then in contrast.

Filter core in the utility model filter element can be selected the powder of size fractionated for use, press different production technologies (as forming pressure, sintering temperature and time, additive character and content) be made into the aperture, duct that varies in size, can satisfy the filtration requirement produce the filtering accuracy 100 dust orders of magnitude to 100 micron, tubulose filter core caliber I is made tens millimeters, can arrive more than 100 millimeter greatly, length can reach more than 1000 millimeter; The diameter of sheet filter core is from making tens to the hundreds of millimeter, and pipe (sheet) wall thickness is from 1 millimeter to several millimeters.Generally all more than 1.5MPa, serviceability temperature can reach hundreds of degree to the breakdown pressure of tubulose filter core.Can select the filter core of corresponding metal powder or alloy powder sintering according to corrosivity, operating temperature, filtration pressure difference, shock conditions and other requirement of fluid.

Compare with existing millipore filter, the utlity model has following advantage:

1, good through performance: since filter core by metal (or alloy) powder pressure forming after sintering form its any surface finish, wall thickness is thin (being generally 2～3 millimeters), and the duct regular shape is evenly distributed in addition, the size in aperture is relatively consistent, so fluid be easy to by;

2, high filtering accuracy: because the micro channel aperture of filter core can select for use varigrained powder, technology etc. to manufacture minimumly, can satisfy the filtration requirement of the 100 dust orders of magnitude, filtering accuracy is very high;

3, strainability can be adjusted in wide range: the character and the content that change different powder grades, manufacture craft, additive, the micro channel aperture can be adjusted under the 100 dust orders of magnitude to 100 micron filtering accuracy requires, and therefore can adapt to different filtration needs;

4, the filter efficiency height: because filter core micro channel rule, the aperture is uniformity relatively, impurity (particle) greater than deciding filtering accuracy is drawn fully hinder, even can block a considerable amount of impurity less than the filtering accuracy level (particle);

5, good regenerability: use (up to ten thousand the pulse cleanings) effect of can regenerating for a long time of the filter core in the utility model is fine, so the service life of filter core is very long.Renovation process knocks out except that commonly used blowback, backwash, aeration and thimerosal or high-temperature vapour the mode such as bacterium, also can adopt and scrub (removing surface deposition impurity), chemical solvent dissolved solid particle, particle is fallen in calcination in high temperature gas flow, ultrasonic wave is removed methods such as particle.General blowback (backwash) method regeneration can make through performance return to 80～95%, and chemical solvent cleans and reaches 90%, and supercritical ultrasonics technology can reach more than 99%;

6, good high temperature resistant, high-voltage performance, can weld, cycling processability: because filter core maintains certain Metal and Alloy characteristic, therefore have certain temperature and toughness, under high temperature and high pressure condition, also can normally use, and can weld, machining and heat treatment;

7, decay resistance is strong: the powder sintered filter core of different metal (alloy) has the corresponding to decay resistance of metal of the same race (alloy), therefore can use in the corrosive mediums such as 20% following hydrochloric acid, finite concentration sulfuric acid and alkali, fuel oil, acetylene, seawater at any concentration nitric acid;

8, applied widely: as to be used for industries such as oil, chemical industry, metallurgy, electronics, electric power, aviation, medicine, food.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:

Fig. 1 is the utility model structural representation

Fig. 2 is the tubulose filter cartridge construction schematic diagram of single-ended sealing

Fig. 3 is a micropore distribution schematic diagram on the element wall

Fig. 4 is used for the schematic diagram of millipore filter for micro porous filtration device shown in Figure 1

Fig. 5 is another (filter core is the siphunculus shape) structural representation of the utility model

Fig. 6 is a siphunculus shape filter cartridge construction schematic diagram

Fig. 7 is used for the schematic diagram of millipore filter for micro porous filtration device shown in Figure 5

Fig. 8 is another (filter core is made up of the filter core unit) structural representation of the utility model

Fig. 9 is a filter core chip architecture schematic diagram

Figure 10 is the vertical view of Fig. 9

Embodiment 1:

Fig. 1-Fig. 3 has provided embodiment 1 figure of the present utility model.Filter core 1 adds auxiliary agents such as different lubricants, pore creating material (mold pressing, etc. static pressure etc.) under the special process condition by single metal dust or alloy powder and is shaped, its shape is illustrated in figure 2 as the tubulose of end sealing, inner chamber 2 is arranged on it and be located at numerous micropore 3(on the internal chamber wall referring to Fig. 3).On the other end, be welded with connector away from blind end--connect and take over 4.The utility model packed on the support plate 5 in as shown in Figure 4 the millipore filter and it is fastening with nut 6.Referring to Fig. 4, when millipore filter is worked, filter stoste and enter intake chamber 8 and through deflector 9 water conservancy diversion through pipeline from the import 7 on the tank body by the water pump pressurization.Filtering stoste is the mixture (colloid, bacterium, larger molecular organics etc. all can be thought solid) of liquid-solid two-phase, under the certain pressure effect, force the filter core of this liquid-solid two-phase mixture by the band micropore, solia particle is retained on the filter core, clear liquid then enters the filter core inner chamber by the crooked micropore on the element wall and enters liquid outtake chamber 10, is discharged by outlet 29 again.The partial concentration stoste that the feed liquor on top and bottom circulation port 30 are discharged makes filter stoste that a kind of vortex flow be arranged, and takes away the part solia particle on the element wall, thereby reaches high purpose of filtering.

Embodiment 2:

Fig. 5～Fig. 6 has provided the utility model embodiment 2 figure, and present embodiment 2 is basic same with embodiment 1, do not exist together be filter core 11 as shown in Figure 6 two ends be the siphunculus shape, be welded with connector at the two ends of filter core--ring flange 12 has through hole 13 on it.Present embodiment 2 can be packed in as shown in Figure 7 the millipore filter and be fixed on the supporting disk 16,17 by screw rod 14, nut 15.Referring to Fig. 7, during work, filter stoste and after flow distribution plate 18 distributes, enter intake chamber's epicoele 19 by the import on the tank body through pipeline by the water pump pressurization, by adjusting the flow of circulation port 20, make stoste flow through the inner chamber of filter core 11 with higher flow velocity, clear liquid then enters in the liquid outtake chamber 31 by the crooked micropore on the element wall and is discharged by outlet, the stoste that concentrates is discharged by circulation port, return former liquid pool, take away the solia particle on the chimney filter wall simultaneously, and reach the purpose of high-rate fitration.

Embodiment 3:

Fig. 8～Figure 10 has provided the utility model embodiment 3 structural representations.Several or the discoid filter core of dozens of unit 22 are arranged in the filter core 21.Each filter core unit 22 by two as Fig. 9, the solid side weld of spill filter disc 23 make-ups shown in Figure 10 connect or its that is formed by connecting such as bonding on inner chamber 24 is arranged.Connector 25 is a tubulose, is through on each filter core unit successively and aperture 26 that each filter core inner chamber communicates and the cavity 27 that communicates with aperture are arranged on it.During installation, can pass through securing member--nut 28 is installed in the utility model on the support plate.

Claims (5)

1, micro porous filtration device is characterized in that having in the described device filter core that contains inner chamber, the connector that is connected with filter core, and the micropore that communicates with inner chamber is arranged on element wall, and filter core adopts metal dust or alloy powder sintering to make.

2, micro porous filtration device as claimed in claim 1 is characterized in that described filter core is a tubulose.

3, micro porous filtration device as claimed in claim 2, an end that it is characterized in that described filter core is a closed.

4, micro porous filtration device as claimed in claim 2, two ends that it is characterized in that described filter core are the siphunculus shape.

5, micro porous filtration device as claimed in claim 1, it is characterized in that having in the described filter core several or dozens of filter core unit, each filter core unit is fastened by two spill filter discs and forms, and connector is through on each filter core unit successively and the aperture that communicates with the filter core inner chamber is arranged and the cavity that communicates with aperture on it.

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