CN2282450Y - Air-float siphon filter chamber - Google Patents

Abstract

The utility model relates to a water purification structure for the water supply treatment. The utility model changed the conventional water supply treatment process from coagulation-precipitation-filtration into coagulation-precipitation-air flotation-filtration. The adaptability of the water treatment system for the quality of raw water is reinforced, and the quality of water to be filtered and the quality of filtered water can be improved. The utility model is that the washing waste water collecting channel (5) of the normal siphon filtering chamber is provided with a gas dissolving water pipe system (4) for introducing pressurizing gas dissolving water and a gas releasing device (6); meanwhile, the water to be filtered enters a filter tank from the bottom of the washing waste water channel (5) through a water to be filtered pipe (channel) system (10) by changing, and thereby, the air float siphon filter chamber is formed.

Description

The air-flotation type siphon filter

The utility model relates to the purification structure to water treatment.It is water quality after the water treatment system of former water is handled adaptive capacity, the raising of raw water quality and the filter cycle that prolongs the filter tank that these structures are used to strengthen with surface water, saves washing water quantity.

Water treatment building is the important component part of water supply system, handles the quality of back water quality, directly has influence on the quality of people's healthy and industrial products.With surface water is that the feedwater conventional treatment flow process of former water generally is coagulation-precipitation-filtration or coagulation-air supporting-filtration, and the difference of the two is to filter pre-treating technology.

Precipitation method principle is to utilize in the water impurity wadding grain to precipitate under the gravity effect, so divide dried up in a kind of process for purifying water of impurity, the most commonly used in China at present.Siphon filter mainly is and the supporting use of sedimentation basin to form pond, a kind of filter tank type of coagulation-precipitation-filtration water purification flow path.

Air supporting method principle then is to manage Xiang Shuizhong to feed or produce a large amount of micro air bubbles, and it is adhered in the water on the impurity wadding grain.This proportion can rely on buoyancy to float to the water surface less than the gas enclosure wadding grain of water, separates purpose thereby reach solid, liquid.Owing to the come-up effect of ducking in drink by means of gas, air supporting method water purification has very high solid, liquid separating power, particularly separate impurity that some proportions approach water, handle low temperature, low-cloudy water, the contaminated Yuan Shui of processing, water remove smell, aspects such as taste removal, decolouring are more superior than general gravitational settling method.In China, the air supporting method now only is used to handle lake, the pool and reservoir etc., and to contain quantity of sand and mud little, and the more former water of lightweight suspension thing (as algae etc.) is used for the bigger rivers water of silt content less.But along with increasing the weight of day by day of China's water environment pollution, rivers water except that itself contain the easily heavy suspension of heavy more, also present the situation of some feature that has lake, the pool and reservoir water concurrently, as look, smell, distinguish the flavor of, contain algae amount and increase, and have obvious seasonal and change, for the less river of some run-offs, all the more so.And conventional coagulation-precipitation-filtering technique is difficult to adapt to this change of water quality, and the shortening of filter tank cycle, effluent water quality are exceeded standard.

The purpose of this utility model is: provide a kind of siphon filter that a tool is filtered water purification function merely to transform the technical method of the air-flotation type siphon filter that has the flotation waste water treatment function concurrently as, do not increase under the new water treatment building prerequisite thereby be implemented in, increase an air supporting processing unit, changing conventional coagulation-precipitation-filtered water handling process is coagulation-precipitation-air supporting-filtered water handling process, give full play to precipitation water purification and flotation waste water treatment method characteristics separately, strengthen the adaptive capacity that water treatment system changes raw water quality, improve the preceding water water quality of filter, and then raising effluent water quality, prolong filter cycle, save washing water quantity.

Formation of the present utility model is: with a fixed tube (canal) road system, to treat the total canal of drainage and pressure air-dissolving water introducing siphon filter flushing waste water bottom respectively, suspended impurity inter coagulation mutually in the total canal of waste water in making microbubble that dissolved air water forms and treat drainage behind the outgas device forms gas enclosure wadding grain.Gas enclosure wadding grain shifts to the water surface in the filter tank, treat that drainage filters by filter material layer downwards, thereby reaches the purpose of Separation of Solid and Liquid, reinforcement filter tank water purification function.

Further specify formation of the present utility model with schematic diagram shown in the accompanying drawing below:

Dissolved air water pressure pump (1), air compressor machine (2), molten cylinder (3) are set outside siphon filter.Water pump (1) feed source autoprecipitation pond water outlet or filter tank water outlet.Water pump (1) outlet pipe links to each other with molten cylinder (3) water inlet (gas) mouth by pipeline respectively with air compressor machine (2) air pipe;

In the total canal of filter tank flushing waste water (5) bottom some groups in outgas device (6) is set evenly longitudinally, its water inlet links to each other with molten cylinder (3) bottom delivery port by dissolved air water pipe-line system (4);

Establish filter pipe (canal) the road system (10) that treats at filter tank siphon inlet water sealed tank (9) delivery port place.By the dam water sealed tank water outlet and it is imported the evenly water outlet longitudinally of total canal of flushing waste water (5) bottom of this pipe-line system.

The course of work is: account for filter tank or sedimentation basin water outlet that Airfloat filtering pond is always handled water yield 5%-10%, enter molten cylinder (3) simultaneously through dissolved air water pressure pump (1) and the air that compresses through air compressor machine (2), under the pressure of 0.25-0.35MPa, dissolve in the water to force air, form dissolved air water.Dissolved air water is introduced the total canal of siphon filter flushing waste water (5) bottom by dissolved air water pipe-line system (4), produces the microbubble of high fine and closely woven degree through outgas device (6).Water inlet siphon pipe (7) will treat that drainage introduces water inlet water sealed tank (9) by the filter tank total canal (8) of intaking, the water outlet of water inlet water sealed tank (9) is introduced flushing waste water canal (5) bottom by treating filter pipe (canal) road system (10), and fully mix with microbubble after rhone (11) enters filter district (12) at this, gas enclosure wadding grain in the water is by separating in the water, float to water surface formation scum layer, treat that drainage then filters by filter material layer (13) downwards, filter back water is exported by filter tank collection water distribution system (14).Scum silica frost is together drained by discharge siphon (15) with flushing waste water when filter back washing.

The technical construction of air-flotation type siphon filter itself enters the filter tank and sets up corresponding dissolved air water pipe fitting (4), (6) except that treating that drainage changes by the total canal of filter back washing waste water (5) bottom, and remainder is identical with conventional siphon filter structure.Filter tank and air-flotation system design parameter are with general filter tank and air-flotation system.

The water inlet siphon pipe (7) in filter tank shown in the accompanying drawing is divided into the both sides, filter tank with discharge siphon (15).For advance, the reconstruction of siphon filter that discharge siphon is located at the same side, can carry out with reference to principle of uniformity.

Realization of the present utility model can be alleviated the present ubiquitous sedimentation basin of China system water industry low temperature, low turbid, high algae, contaminated, high luminance relay are smelt the not good enough problem of the former water treatment effect of flavor, has following beneficial effect:

1. the adaptability to water quality is strong.Utilize precipitation unit and air flotation cell to remove easy heavy and difficult heavy impurity in the water respectively,, can improve greatly and treat drainage water quality not increasing throwing alum amount or not reducing under the prerequisite of sedimentation basin rate of load condensate, and the final filter back water quality of improving;

Since existing be that the water factory at water source mostly is coagulation-precipitation-filtering process greatly with rivers water, so be highly suitable for the transformation of this class water factory.Also being suitable for simultaneously newly-built water factory adopts;

The utility model is simple, does not set up structures in addition.Can make air flotation cell adding or out of service at any time according to raw water quality, uninterrupted simultaneously system water, the method for operation is flexible;

3. along with the mutagen species number that detects in the water is increasing, and to the going deep into of its recognizing dangers, the national governments that comprise China are continuous strict its water standard all, the control filtered water quality, and require naturally has the preceding water water quality of better filter for this reason.After adopting precipitation-air supporting series connection water-purifying process, the turbidity of water, colourity, COD etc. all can be able to reduction in various degree before the filter, pollute so can alleviate filtering layer, prolong filter cycle, save the backwash water yield, increase the system water yield, and are energy-saving and cost-reducing.

Below in conjunction with accompanying drawing an embodiment of the present utility model is described.

As accompanying drawing, for having the embodiment that siphon filter transform the air-flotation type siphon filter as now, the processing flow in single lattice filter tank is 153 meters ³/ time.Dissolved air water draws the water outlet of autoprecipitation pond, behind pressure air-dissolving, by do, a caliber is respectively 80 and the dissolved air water pipe-line system (4) formed of 4O millimeter steel pipe and is made up of bottom outgas device (6) the introducing total canal of filter tank flushing waste water (5) 6 TS-IV type dissolved air releases.

Before the transformation, treat that drainage directly falls in the filter tank by water inlet water sealed tank (9), now using instead by caliber is that filter pipe (canal) the road system (10) that treats that 300 millimeters steel pipes constitute introduces flushing waste water canal (5) bottom, make and treat that drainage is mixed at this with microbubble, the gas enclosure wadding grain that forms shifts to the water surface at filtering area (12), and scum silica frost is together discharged outside the pond by discharge siphon (11) with flushing waste water when filter back washing.

Accompanying drawing is the utility model schematic diagram, is respectively shown in the figure:

(1)-the dissolved air water pressure pump; (2)-air compressor machine; (3)-molten cylinder; (4)-the dissolved air water pipe-line system; (5)-the total canal of filter tank flushing waste water; (6)-the outgas device; (7)-the water inlet siphon pipe; (8)-filter tank total canal of intaking; (9)-the water inlet water sealed tank; (10)-treat filter pipe (canal) road system; (11)-rhone; (12)-the filter district; (13)-filter material layer; (14)-filter tank collection water distribution system; (15)-discharge siphon.

Claims (1)

1. one kind is provided with the air-flotation type siphon filter that tube system constituted that produces the flotation waste water treatment effect in conventional siphon filter, it is characterized in that:

Dissolved air water pressure pump (1), air compressor machine (2), molten cylinder (3) are set outside siphon filter.Water pump (1) feed source autoprecipitation pond water outlet or filter tank water outlet, water pump (1) outlet pipe links to each other with molten cylinder (3) water inlet (gas) mouth by pipeline respectively with air compressor machine (2) air pipe;

In the total canal of filter tank flushing waste water (5) bottom some groups in outgas device (6) is set evenly longitudinally, its water inlet links to each other with molten cylinder (3) bottom delivery port by dissolved air water pipe-line system (4);

Establish filter pipe (canal) the road system (10) that treats at filter tank siphon inlet water sealed tank (9) delivery port place.By the dam water sealed tank water outlet and it is imported the evenly water outlet longitudinally of total canal of flushing waste water (5) bottom of this pipe-line system.

Images