CN2166873Y

CN2166873Y - High-efficiency filtrating device

Info

Publication number: CN2166873Y
Application number: CN 93208288
Authority: CN
Inventors: 王延福; 周崇军; 郑彬功; 曾艳京
Original assignee: XI'AN BRANCH COAL SCIENCES RESEARCH GENERAL ACADEMY
Current assignee: XI'AN BRANCH COAL SCIENCES RESEARCH GENERAL ACADEMY
Priority date: 1993-04-09
Filing date: 1993-04-09
Publication date: 1994-06-01
Anticipated expiration: 2003-04-09

Abstract

The utility model relates to a filtrating device which is also named water filtrating device, and the filtrating device is normally regarded as the heart of a pipe well. Coal mine drainage wells (or water supplying wells) use the filtrating device to filtrate the water and block the sand. The utility model provides a high-efficiency filtrating device which is mainly composed of a rigid polyvinyl chloride (U-PVC) plastic perforated pipe, a spacer rod, a blocking hoop and a non-woven fabric barrel. The utility model can be widely used for various types of hydrogeological conditions and water supply engineering by selecting perforated pipes and non-woven fabric barrels with different standards. The utility model solves the problems of corrosion and clogging existing in previous metal pipe filtrating device with wire winding. The utility model extends the service life of pipe wells, reduces the sand content in the effluent, stops the water pump burnout phenomenon caused by the gushing sand, and reduces the production cost and the labour intensity of workers for accomplishing wells.

Description

High-efficiency filtrating device

The utility model belongs to pipe well filter plant class.It specifically is exactly the high efficiency particulate air filter of mainly forming by PVC-U (U-PVC) plastics floral tube, pad muscle, retaining hoop and non-woven fabrics tube.

The present filter that generally adopts of China's water supply industry mostly is that a steel pipe or a cast iron pipe that twines the silk perforation is the filter of material, and this class filter easily is corroded in underground water and stops up, and the well life-span is had a strong impact on, but also reduces water inlet efficient.Particularly when underground glassware for drinking water is corrosive, its corrosion and clogging are more violent, about Cheng Jinghou 5 years, with regard to invar pipe or cast iron pipe and twine the silk damaged by the underground water rust corrosion, make filter pour into a large amount of sand grains and the silt well, the easy burn-out water pump, and cause water supply well or drainage well to scrap; What have supplies water or the minimizing of drainage well water amount because of chemistry stops up to make, and even exhausted.The eighties Ministry of Geology and Mineral Resources in mid-term door worked out fiberglass filter and adhesive gravel filter once.Though these two kinds of filters have solved corrosion and blockage problem that steel pipe or cast iron pipe twine a filter, but its complex process, processing need special mould, specification is less, price is comparatively expensive, directly contact with floral tube owing to the adhesive gravel filter gravel bed simultaneously, thereby porosity is low, and the filter capacity of outlet water is also low, and has drawbacks such as unfavorable well-flushing and inconvenience transportation.So do not applied.In addition, also useful asbestos pipe of water supply industry or pipe of cement twine a filter, but generally can only be used for more shallow well, so its range of application also is restricted.

The utility model provides a kind of high efficiency particulate air filter that can address the above problem.

The technical solution of the utility model is such: at first according to national standard " Technical standard for water supply well ", and in conjunction with the hydrogeologic condition of drainage well or water supply well and the model of after becoming well water pump being installed, sizes etc. are selected suitable specification (external diameter, wall thickness, length) PVC-U (U-PVC) plastic pipe, by processing design on an end of tubing expands bell and spigot and on the cloth porose area bores several treatment holes form filter floral tubes, on floral tube, be stained with the plastic mattress muscle again with the polyvinyl chloride binding agent, and the plastics retaining hoop that is stained with or burn-ons at pad muscle two ends, to be enclosed within by the non-woven fabrics tube that design processes on the skin then, and with the two ends of non-woven fabrics tube nylon rope and floral tube encircling, be fixed on the retaining hoop with press strip again, so just finished the technical solution of the utility model.

The high efficiency particulate air filter that the utility model provides twines a filter with steel pipe that used or cast iron pipe in the past and compares, and has obvious superiority:

1, because the material of this filter is nonmetal, thereby corrosion and blockage problem that metal in the past twines a filter have been solved, prolonged the life-span (generally more than 30 years) of filter and even whole well, for the exploration and the exploitation of groundwater resources provides reliable assurance.

2, water permeability is good, and drainage reliable (water inlet efficient height) reduces water inlet sand content (not gushing sand), thereby also prolonged the water pump life-span.

3, processing technology is simple, and product weight is light, thereby has improved one-tenth well speed, and has reduced labor strength.

4, cost can reduce approximately 1/3rd, also can be country and saves a large amount of precious metals such as steel, cast iron and copper wire.

In a word, use this utility model, not only solved in China's open coal mine sewer drainage the corrosion and the blockage problem of filter in the past, the water engineering (water supply well) to other field also has using value simultaneously.

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

Fig. 1 is the floral tube schematic diagram

Fig. 2 vertically fills up the muscle schematic diagram

Fig. 3 is a retaining hoop schematic diagram

Fig. 4 is the non-woven fabrics tube schematic diagram

Fig. 5 is an overall structure schematic diagram of the present utility model

Floral tube shown in Figure 1 by bell and spigot 1, cloth porose area 2, cloth porose area 3, insert section 4 four parts and do not form.Bell and spigot 1 is that when well (become) is used for connecting with insertion section 4 socket joints of another root filter (or wall casing), not cloth porose area 2 be under reservation clip Board position when managing, cloth porose area 3 is effective water inlet portion, this district is furnished with inlet opening 5.Its floral tube material is PVC-U (U-PVC) plastics, generally can determine its different floral tube length, caliber, water inlet aperture and laying thereof according to different hydrogeologic conditions and water engineering.General water supply or drainage well casing footpath are between 250～400 millimeters, the peephole caliber is between 75～90 millimeters, the water inlet aperture is generally 15～20 millimeters, and its inlet opening is laid and generally pressed the equilateral triangle summit to radially arranging laying, and its floral tube length is generally got about 4 meters.

Vertical pad muscle shown in Figure 2 is bonded in outside Fig. 1 floral tube, the outsourcing nonwoven is worked the effect of soaring, and to improve the effective drainage porosity of filter, its material is identical with floral tube, and available polyvinyl chloride bonding agent and floral tube are bonding.Pad muscle length is identical with floral tube cloth porose area length, highly is preferably 6～8 millimeters, general desirable 8～15 millimeters of width, and its spacing is advisable for 2～4 millimeters apart from the floral tube wall with nonwoven after guaranteeing to put non-woven fabrics tube.The pad muscle can be sawn into by plastic plate or tubing.

Retaining hoop shown in Figure 3 is the two ends that are fixed on several vertical pad muscle of one week of Fig. 1 floral tube, and the retaining hoop can be expanded into the bell and spigot size by plastic pipe and be sawn into, and is enclosed within floral tube external application binding agent bonding, also can be welded into plastic welding gun by plastic strip.

The non-woven fabrics tube of Fig. 4 can be rolled into tubular by the nonwoven 6 of selected good specification and size and overlap about 10 centimetres and prick last three road sutures 7 with three-way machine and form.Nonwoven also claims geotextile, be that terylene or polypropylene fibre etc. are made through nonwoven machining in the employing chemical fibre, usually can determine its type and specification according to the hydrogeologic condition in used water engineering requirement and water intaking place, its specification is generally every square metre 250～600 gram.The length of non-woven fabrics tube generally respectively exceeds about 20 centimetres again by floral tube cloth porose area length on both sides, both sides are affixed can be bound with nylon rope and floral tube earlier, and then with press strip and gong nail the non-woven fabrics tube limit is fixed on the retaining hoop.

In the overall structure of the present utility model shown in Figure 5,8 is floral tube, and 9 is to keep off hoop, and 10 is vertically to fill up muscle, and 11 is non-woven fabrics tube, and 12 is press strip, and 13 is nylon rope, and 14 is that fixedly gong is followed closely.

Claims

1, a kind of high efficiency particulate air filter, mainly be made up of floral tube, pad muscle, retaining hoop and non-woven fabrics tube, it is characterized in that: non-woven fabrics tube is enclosed within on the skin of floral tube, and two ends bind with nylon rope and floral tube, fixing with press strip and gong nail again, filled up muscle and retaining hoop on the floral tube that non-woven fabrics tube covered in addition.

2, high efficiency particulate air filter according to claim 1 is characterized in that: making the used nonwoven specification of non-woven fabrics tube is every square metre 250～600 gram.

3, high efficiency particulate air filter according to claim 1 is characterized in that: the material of being bound round by floral tube, pad muscle, retaining that non-woven fabrics tube wrapped is PVC-U (U-PVC) plastics.