CN2348910Y

CN2348910Y - Pretreating filter for small water purifier

Info

Publication number: CN2348910Y
Application number: CN 98227770
Authority: CN
Inventors: 王士海
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-03
Filing date: 1998-09-03
Publication date: 1999-11-17
Anticipated expiration: 2008-09-03

Abstract

The utility model relates to a pretreating filter for a small water purifier. The utility model is composed of a filter cartridge, a filter material bag, filter materials, material-barrier perforated water filter plates, an annular water distributor, a sewer collection cavity, an electromagnetic sewer valve, a sewer valve, etc. According to the condition of the quality of tap water, different filtering materials are adopted to filter water, and then, the filtered water enters filter cores of each stage of a small reverse osmosis water purifier; the service life and the change cycle of the filter cores of each stage of the water purifier can be extended. The filter materials are cleaned through water pressure; the water which cleaned the filter materials is discharged through the sewer valve and a flushing sewer drain pipe, and filtering interception objects in the sewer collection cavity is discharged through the electromagnetic sewer valve under the water pressure.

Description

Small-sized water purification machine pretreatment filters

The utility model relate to a kind of can clean voluntarily with blowdown water purification machine source water is carried out pre-filtered device, belong to the water purification filter technical field.

The small-sized household or the office's R.O reverse osmosis water purification machine that utilize the reverse osmosis principle to make sold on the market now, the general Pyatyi disposable filtering mode that adopts is finished the purification of water quality process, since the filtering reverse osmosis water purification machine of this Pyatyi will be when very short obstruction such as chien shih coarse filtration PPF filter core, in order to continue to use, renew cartridge more, for solving these technical problems, designed the fore filter that matches with R.O reverse osmosis water purification machine, applied for patent, obtained patent right (97236167.7), this strainer can be according to the tap water quality of different areas, adopt built-in different filtration (water purification) material, can not spend and carry out routine cleaning, its structure is: adopt a kind of filter cartridge, be provided with the filtrate of packing with the filtrate bag in the filter cartridge, the top of tube is provided with filter cover, on cover and set out water pipe head, the filtrate bag is located on the interior backgauge water filter plate of tube, the backgauge water filter plate rests on the boss of an inwall, establish treatment hole on the backgauge water filter plate, between backgauge water filter plate and the tube inner bottom surface is cavity, establishes admitting pipe joint on the cavity wall, and the admitting pipe joint below is provided with wash water valve.This structure only needs periodically the filtrate bag to be taken out from cartridge filter, can insert after cleaning according to the different purging method of different filtrate employings and continue use in the tube.Practice shows that this structure also comes with some shortcomings: (1) is cleaned filtrate as need must remove loam cake; (2) particulate littler than the hole of filter bag enters system with percolation water in the filtration procedure; (3) water inlet pipe is straight tube shape after entering in the tube, because the hole influences flooding quantity less; (4) sludge water of cylindrical shell inner bottom part accumulated filth cavity can not be realized automatic discharge.

The purpose of this utility model provides a kind of filter effect better for overcoming above-mentioned deficiency, can clean and control the small-sized water purification machine pretreatment filters of blowdown voluntarily to filtrate.

For achieving the above object, the technical solution of the utility model is: a kind of small-sized water purification machine pretreatment filters, by filter cartridge, the loam cake that the top seal of tube is fixed as one, on cover the titting water outlet of setting, the backgauge water filter plate of shelving on the boss of tube inwall with treatment hole, the filtrate bag that is loaded with filtrate that is provided with on the backgauge water filter plate, the formations such as blowdown joint of fixed admitting pipe joint and its underpart on the cavity wall between backgauge water filter plate and the tube inner bottom surface, it is characterized in that covering mudhole is set, the mudhole valve that spins, be horizontally disposed with in the loam cake of rising pipe bottom and cover the filter cloth fixing plate cycle that fine filtering cloth is arranged, be provided with the annular water distribution device that is connected with admitting pipe joint in the cavity of tube inner bottom part, be circumscribed with the blowdown magnetic valve on the blowdown joint.

The utility model covers on nearly cylindrical shell mudhole and valve is set, and the particulate that will amass between the filtrate gap under tap water pressure flushes out, and discharges through valve and flushing pollution discharge pipe, need not to open loam cake and takes out the filtrate cleaning; After fine filtering cloth is set,, stop that further superfine particulate enters system, has improved the water purification degree because the aperture of its aperture ratio filter bag is little in loam cake; The annular water distribution device is set, has increased the quantity in hole, thereby increased flooding quantity, by the blowdown magnetic valve is set, after magnetic valve got electric opening, the filtration trapped substance that will collect automatically under the tap water pressure that enters in the dirty chamber was discharged.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Accompanying drawing 1 is the utility model structural representation;

Accompanying drawing 2 is annular water distribution device upward views in the utility model.

The basic structure of present embodiment is mainly by filter cartridge 7, loam cake 19, filtrate bag 18, filtrate 15, perforate backgauge water filter plate 21, annular water distribution device 14, blowdown magnetic valve 10, constitute towards Xian's sewage draining valve 5, fine filtering cloth 3 and filter cloth fixing plate cycle 4 etc.Filtrate bag 18, filtrate 15, perforate backgauge water filter plate 21, annular water distribution device 14 all are arranged in the filter cartridge 7, loam cake 19 is arranged at the top of filter cartridge 7, be horizontally disposed with filter cloth fixing plate cycle 4 and fine filtering cloth 3 in the loam cake 19, the cleaning mudhole 20 that the nearly filter cartridge of one side of loam cake 19 7 places suitable for reading the are provided with valve 5 that spins, by trip bolt 16 filter cartridge 7 and loam cake 19 are held together, be provided with sealing-ring 17 between filter cartridge 7 and loam cake 19, blowdown magnetic valve 10 is connected as a single entity through screw and the filter cartridge 7 that joint 11 is screwed into filter cartridge 7 bottoms.Annular water distribution device 14 places the admitting pipe joint 9 on blowdown magnetic valve 10 tops to connect, perforate backgauge water filter plate 21 is located on the boss of filter cartridge 7 inwalls on annular water distribution device 14 tops, put the filtrate bag 18 that filtrate 15 is housed on the perforate backgauge water filter plate 21, form the dirty chamber 13 of collection between the inner bottom surface of perforate backgauge water filter plate 21 and strainer 6.Admitting pipe joint on the filter cartridge 7 is solidified as a whole annular water distribution device 14, water inlet pipe 8 and filter cartridge 7.Titting water outlet 2 on the filter cover 19 is solidified as a whole rising pipe 1 and loam cake 19.

Open water tap, tap water enters annular water distribution device 14 by water inlet pipe 8, and by the downward posticum 12 on the water injection allocator 14 enter the collection dirty chamber 13, water is entered by perforate backgauge drainage plate hole 22, filter by filtrate 15, insolubles in the tap water (dirt) is blocked, because water inlet pipe 8 is in the bottom of filter cartridge, rising pipe 1 is on filter cover 19, water flow velocity is slow, the insolubles that particle diameter is bigger is deposited at the bottom of the dirty chamber of collection, and the less insolubles of particle diameter is filtered filtration of material, and the water after the filtration enters R.O reverse osmosis water purification machine filter cores at different levels by rising pipe.

Claims

1, a kind of small-sized water purification machine pretreatment filters, by filter cartridge, the loam cake that the top seal of tube is fixed as one, on cover the titting water outlet of setting, the backgauge water filter plate of shelving on the boss of tube inwall with treatment hole, the filtrate bag that is loaded with filtrate that is provided with on the backgauge water filter plate, the formations such as blowdown joint of fixed admitting pipe joint and its underpart on the cavity wall in backgauge water filter plate and the tube at the end, it is characterized in that covering mudhole is set, the mudhole valve that spins, be horizontally disposed with in the loam cake of rising pipe bottom and cover the filter cloth fixing plate cycle that fine filtering cloth is arranged, be provided with the annular water distribution device that is connected with admitting pipe joint in the cavity of tube inner bottom part, be circumscribed with the blowdown magnetic valve on the blowdown joint.

2, small-sized water purification machine pretreatment filters according to claim 1 is characterized in that the mudhole that covers is arranged on the nearly filter cartridge of loam cake one side place suitable for reading, and valve and mudhole threaded connection are fixed as one with loam cake.

3, small-sized water purification machine pretreatment filters according to claim 1, it is characterized in that annular water distribution device level is horizontal in the cavity of filter cartridge bottom, with the admitting pipe joint threaded connection on the cavity wall, and be fixed as one with filter cartridge, the posticum that is provided with on the annular water distribution device is downward.

4, small-sized water purification machine pretreatment filters according to claim 1 is characterized in that the blowdown magnetic valve is connected as a single entity through screw and the filter cartridge that joint is screwed into the filter cartridge bottom.