CN2321516Y - Borard frame type membrane assembly for osmotic vaporization process - Google Patents

Abstract

The utility model relates to a board frame type membrane assembly for the process of the osmotic vaporization. The membrane assembly is composed of a membrane frame, a membrane, a supporting board, and a gasket. The membrane frame, the membrane, and the supporting board are lapped mutually. The gasket is arranged between the frame and the membrane, wherein, the membrane frame is formed by splicing two frame boards, wherein, the supporting board is formed by lapping two bottom boards with a plurality of holes and a middle wire mesh or a corrugated board. The board frame type membrane assembly of the utility model can make the material liquid evenly distributed in the frame. The whole membrane assembly has the advantages of simple structure, convenient processing, and easy assembling, so that the utility model can reduce the cost of the equipment.

Description

The plate and frame module that is used for the infiltration evaporation process

The utility model relates to a kind of plate and frame module that is used for the infiltration evaporation process, belongs to the infiltrating and vaporizing membrane separation technology field.

Plate and frame module is a kind of key equipment of infiltrating and vaporizing membrane separation process, and it is made up of parts such as cover plate, film frame, gripper shoe, film and elastomeric pads.Wherein, place film and pad therebetween by the unit of a film frame and a gripper shoe constituent components.Whole assembly is superimposed by several (several to hundreds of) unit, and compresses with cover plate at two ends and to form.Film frame and gripper shoe are the critical components of plate and frame module.Present industrial extensive use be the plate and frame module (patent No. DE3529175A1) of German GFT company, its structure such as Fig. 1 and Fig. 2, Fig. 1 are the front views of plate and frame module, Fig. 2 is the profile of Fig. 1.Among Fig. 1 and Fig. 2, the 1st, the film frame, the 2nd, film, the 3rd, gripper shoe, the 4,5, the 6th, packing ring, the 7th, the feed liquid sprue, the 8th, advance the frame runner, the 9th, material liquid flowing channel in the frame.Feed liquid is sent into by the feed liquid sprue 7 of film frame 1 one sides, enters in the frame 9 through advancing frame runner 8, flow to the going out the frame hole of opposite side and flows out along face 2.Penetrant sees through film, discharges through gripper shoe 3, and the shortcoming of this plate frame structure is: (1) feed liquid is little by the runner that sprue advances frame, and needs just to enter in the frame and contact with face through three right-angled bends, so the flow resistance of feed liquid is big; (2) feed liquid is advanced the frame aperture by one and is entered in the frame, goes out the frame aperture from one again and flows out, and feed liquid is skewness in frame, and separating property is poor; (3) complex structure needs three kinds of packing rings, processing and assembling difficulty height.

The purpose of this utility model is a kind of plate and frame module of design, and the structure of film frame and gripper shoe makes in the infiltration evaporation process in the improvement prior art, it is big that the steam channel of film rear side becomes, resistance reduces, and improves the vacuum of film rear side to greatest extent, improves separative efficiency.

The plate and frame module that is used for the infiltration evaporation process of the utility model design comprises film frame, film, gripper shoe and packing ring, and film frame, film and gripper shoe are superimposed with each other, and packing ring places between frame and the film.Film frame wherein is put together by two deckle boards, and deckle board is a closed-in construction, and two ends have slot, have groove at interval between slot and the middle boxes, groove width is 4～6mm, and two grooves are spaced apart 2～4mm, with welding or bonding the sealing, film frame gross thickness is 2.5～4mm around the film frame.Gripper shoe wherein is formed by stacking by the silk screen of Porous Base with the centre, two ends of silk screen are packing ring, and two sides of Porous Base are slot, and the middle part porosity is 20～40%, the thickness of base plate is 0.5～1.5mm, and silk screen is that the wire of 0.3～0.7mm or the braiding of plastics silk form by diameter.

The another kind of version of above-mentioned film frame is for to be put together by two cover plates and a slice central dividing plate, cover plate is a closed-in construction, two ends have slot, central dividing plate is a closed-in construction, and two ends are comb teeth shape, the facewidth 2～4mm, two between cog are divided into 4～6mm, with welding or bonding the sealing, film frame gross thickness is 2.5～4mm around the film frame, and cover plate is 1: 2 with the thickness ratio of dividing plate.

The another kind of version of above-mentioned gripper shoe is for being formed by stacking by the corrugated plating of two Porous Bases with the centre, and two ends of corrugated plating are packing ring.

Use the plate and frame module that is used for the infiltration evaporation process of the utility model design, can widen feed liquid is advanced frame by sprue runner, and the dead angle of not turning round, so the flow resistance of feed liquid is little, feed liquid is evenly distributed in frame, and separating property is good, and whole membrane module structure is simple, easy to process, assembling is easy, thereby greatly reduces equipment cost.

Description of drawings:

Fig. 1 is the prior art structural representation.

Fig. 2 is the A-A profile of Fig. 1.

Fig. 3 is the plate and frame module structural representation of the utility model design.

Fig. 4 is the B-B profile of Fig. 3.

Fig. 5 is the structural representation of film frame in the utility model plate and frame module.

Fig. 6 is the side view of Fig. 5.

Fig. 7 is the another kind of version of film frame.

Fig. 8 is the side view of Fig. 7.

Fig. 9 is the structural representation of gripper shoe in the plate and frame module of the utility model design.

Figure 10 is the side view of Fig. 9.

Figure 11 is the side view of the another kind of version of gripper shoe.

Below in conjunction with accompanying drawing, introduce in detail content of the present utility model.

Among Fig. 1 to Fig. 4, the 1st, the film frame, the 2nd, film, the 3rd, gripper shoe, the 4,5, the 6th, packing ring, The 7th, the feed liquid sprue, the 8th, advance the frame runner, the 9th, material liquid flowing channel in the frame, arrow represents feed liquid stream among the figure To.

Fig. 1 and Fig. 2 are the structural representations of prior art, and Fig. 3 and Fig. 4 are the utility model designs The plate and frame module structural representation. As shown in Figure 4, film frame 1, film 2 and gripper shoe 3 are superimposed with each other, Packing ring 4 places between film frame and the film. Feed liquid is sent into from the feed liquid sprue 7 of film frame 1 one sides, through advancing frame Runner 8 flows in the frame 9, flow to opposite side and flows out along face 2.

The difference of the utility model and Fig. 1 structure is that (1) feed liquid sprue cross section is big, is rectangle, The length on its long limit is identical with the width of material liquid flowing channel 9 in the film frame, and advancing frame runner 8 is to be evenly distributed on the master Some parallel duct on the long limit of runner 7, feed liquid directly enters in the frame through advancing frame runner 8, so The flow resistance of feed liquid is little; (2) feed liquid enters in the frame through some parallel frame runners 8 that advance, thereby energy Be evenly distributed in the interior material liquid flowing channel 9 of film frame; (3) relatively simple for structure, assembling is than being easier to.

The structure of film frame 1 as shown in Figure 5 and Figure 6, among Fig. 5 and Fig. 6, the 10th, slot, 11 Deckle board, the 12nd, the groove of deckle board end, the wide of its groove 12 is 4～6mm, two grooves are spaced apart 2～4mm. Seal with welding or bonding around the film frame, film frame gross thickness is 2.5～4mm. It advances frame Runner 8 is during by the deckle board amalgamation, and the sulculus 12 on the deckle board 11 consists of.

The another kind of version of film frame 1 as shown in Figure 7 and Figure 8, among Fig. 7 and Fig. 8, the 13rd, cover plate, the 14th, dividing plate, the 15th, broach, the 16th, between cog seam.Two ends of cover plate 13 have slot 10, dividing plate 14 also is a closed-in construction, its two end is a comb teeth shape, the width of its tooth 15 is 2～4mm, and two spaces of teeth 16 are 4～6mm, and dividing plate is between two cover plates, be superimposed with each other, with welding or bonding the sealing, film frame gross thickness is 2.5～4mm around the film frame, and cover plate 13 is 1: 2 with the thickness ratio of dividing plate 14.When three amalgamations, the between cog of central dividing plate 14 seam 16 formations are advanced the frame runner.The film frame can be with sheet metal or sheet plastic manufacturing.

The structure of the gripper shoe in the plate and frame module such as Fig. 9 and shown in Figure 10, among Fig. 9 and Figure 10, the 17th, Porous Base, the 18th, silk screen, the 19th, pad, two Porous Bases 17 and middle silk screen 18 are superimposed with each other, and two ends of silk screen are pad 19.There is slot 21 both sides of Porous Base, and middle porosity is 20～40%, and thickness is 0.5～1.5mm, and silk screen 18 is that wire or the braiding of plastics silk of 0.3～0.7mm forms by diameter.Pad 19 can be used elastomeric pad, also can make with hard materials such as metal or plastics, and in membrane module, the slot 21 of gripper shoe two sides becomes the feed liquid sprue.This supporting construction makes the steam channel of film rear side in the infiltration evaporation process big, and resistance is little, can improve the vacuum of film rear side to greatest extent.

In the above-mentioned gripper shoe, silk screen wherein also can be used corrugated plating, its structure as shown in figure 11, the angle, peak of corrugated plating 20 is 60～80 ° among the figure.

An embodiment of the present utility model is: in the membrane module, film frame thickness is 3mm, and the porosity of Porous Base is 30% in the gripper shoe, and the silk screen diameter is 0.5mm.

Claims (3)

1, a kind of plate and frame module that is used for the infiltration evaporation process, comprise film frame, film, gripper shoe and packing ring, film frame, film and gripper shoe are superimposed with each other, and packing ring places between frame and the film, it is characterized in that described film frame is put together by two deckle boards, deckle board is a closed-in construction, and two ends have slot, has groove at interval between slot and the middle boxes, groove width is 4～6mm, two grooves are spaced apart 2～4mm, and with welding or bonding the sealing, film frame gross thickness is 2.5～4mm around the film frame; Described gripper shoe is formed by stacking by Porous Base and middle silk screen, two ends of silk screen are packing ring, and two sides of Porous Base are slot, and the middle part porosity is 20～40%, thickness is 0.5～1.5mm, and silk screen is that the wire of 0.3～0.7mm or the braiding of plastics silk form by diameter.

2, plate and frame module as claimed in claim 1, it is characterized in that wherein said film frame is put together by two cover plates and a slice central dividing plate, cover plate is a closed-in construction, and two ends have slot, and central dividing plate is a closed-in construction, two ends are comb teeth shape, the facewidth is 2～4mm, and two between cog are divided into 4～6mm, and the film frame is all around with welding or bonding the sealing, film frame gross thickness is 2.5～4mm, and cover plate is 1: 2 with the thickness ratio of dividing plate.

3, plate and frame module as claimed in claim 1 is characterized in that described gripper shoe is formed by stacking by the corrugated plating of two Porous Bases with the centre, and two ends of corrugated plating are packing ring.

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