CN201458786U - Aerated water preparation device of jet device - Google Patents
Aerated water preparation device of jet device Download PDFInfo
- Publication number
- CN201458786U CN201458786U CN2009200758875U CN200920075887U CN201458786U CN 201458786 U CN201458786 U CN 201458786U CN 2009200758875 U CN2009200758875 U CN 2009200758875U CN 200920075887 U CN200920075887 U CN 200920075887U CN 201458786 U CN201458786 U CN 201458786U
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- outlet
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- ejector
- flotation cell
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Abstract
The utility model provides an aerated water preparation device of a jet device. The aerated water preparation device is characterized in that: a flow stabilizer which is connected with the jet device is arranged on a connecting pipeline between a multi-stage centrifugal pump and a glass rotor flow meter; the jet device comprises a nozzle connected with the flow stabilizer, an outlet of the nozzle is arranged at one side of an air chamber, an adjusting nut is arranged at the connecting position between the nozzle and the air chamber, an air suction port is arranged on the side wall of the air chamber, a throat pipe is connected at the other side of the air chamber, a tail pipe is connected with the throat pipe, and an outlet of the tail pipe is connected with a pipeline between the bottom part of a water outlet tank and the multi-stage centrifugal pump. The aerated water preparation device has the following advantages: the aerated water preparation device can prepare high-quality aerated water, improve the floatation processing effect and lessen the running noise pollution.
Description
Technical field
The utility model relates to a kind of current ejector aerated water preparation device, belongs to technical field of sewage.
Background technology
Traditional dissolved air water is produced with air compressor, as shown in Figure 1, produce dissolved air water device synoptic diagram for the conventional air compressor, described device is made up of stage chamber pump 1, air compressor 2, glass rotameter 3, dissolving 4, flotation cell water-in 5, reliever 6, flotation cell 7, slag chute 8, water outlet 9.Stage chamber pump 1 connects glass rotameter 3, glass rotameter 3 connects the top inlet of dissolving 4, dissolving 4 middle parts connect air compressor 2, the outlet at bottom of dissolving 4 connects the dissolved air water inlet that is positioned at flotation cell 7 one side bottoms, described dissolved air water ingress is provided with reliever 6, flotation cell 7 one side roof parts are provided with flotation cell water-in 5, flotation cell 7 opposite side tops are provided with slag chute 8, flotation cell 7 opposite side bottoms connect outlet sump, the top of outlet sump is provided with water outlet 9, and the bottom connects stage chamber pump 1.By air compressor 2 pressurized air, in dissolving 4, produce dissolved air water with the high pressure water that stage chamber pump 1 produces, in flotation cell 7, to mix with the waste water for the treatment of flotation by reliever 6, processed waste water is discharged from water outlet 9, and scum silica frost is effluxed by slag chute 8.The dissolved air water bubble that this method makes is big, of poor quality, and flotation effect is low; The dissolving water level shakiness that is in operation, operation easier is big; In flotation cell, establish the dissolved air water reliever, result in blockage easily; Energy consumption height when air compressor moves in addition, noise is big.
Summary of the invention
The purpose of this utility model provides a kind of current ejector aerated water preparation device, and it can make high-quality dissolved air water, improves the flotation treatment effect, reduces the sound pollution of operation.
In order to achieve the above object, the technical solution of the utility model provides a kind of current ejector aerated water preparation device, comprise stage chamber pump, the multistage centrifugal pump discharge connects current stabilizer, current stabilizer connects glass rotameter, glass rotameter connects the top inlet of dissolving, the outlet at bottom of dissolving connects the dissolved air water inlet that is positioned at flotation cell one side bottom, flotation cell one side roof part is provided with the flotation cell water-in, flotation cell opposite side top is provided with slag chute, and flotation cell opposite side bottom connects outlet sump, and the top of outlet sump is provided with water outlet, the bottom of outlet sump connects the multistage centrifugal pump inlet, it is characterized in that described current stabilizer middle part also is connected with ejector;
Wherein, described ejector comprises the nozzle that links to each other with current stabilizer, a side of air chamber is located in the outlet of nozzle, the junction of nozzle and air chamber is provided with setting nut, the sidewall of air chamber is provided with suction opening, the opposite side of air chamber connects trunnion, the trunnion union tail, and the outlet of tail pipe connects the pipeline between outlet sump bottom and the multistage centrifugal pump inlet.
Further, the pipeline between the dissolved air water of the outlet at bottom of described dissolving and the flotation cell inlet is provided with reducing valve.
The ingress of described nozzle and the exit of tail pipe all are provided with variable valve.
Described ejector is arranged on vertical direction, and described nozzle is located at upside, and tail pipe is located at downside.
Principle of the present utility model is: described ejector is the vent fan that a kind of principle design of utilizing fluidic ram pressure and statical head to transform mutually forms. current penetrate through jet exit, form certain vacuum, the air of outside is constantly sucked air chamber, gas-liquid two-phase mixes the violent turbulent fluctuation of generation through trunnion, it is soluble in water that shearing makes in the water air become micro-bubble, form dissolved air water, through trunnion, tail pipe is discharged. treat that the waste water of flotation mixes in flotation cell mutually with the dissolved air water that ejector is produced, dissolved air water camber dispersive micro-bubble just is attached on the pollutants in waste water, float then to the water surface and remove with slag scraper, realize that solid-liquid separation or liquid liquid separate, improving wastewater effluent water quality. the adjustment nut in the described ejector is used to regulate gas-water ratio, promptly by adjusting the amount of inlet water and the intake pressure of nozzle, realization is to sucking the control of air capacity. and described current stabilizer is to be used for the stable dissolved air water that produces, make dissolved air water help flotation effect reposefully by entering dissolving behind the glass rotameter.
Advantage of the present utility model is:
1, bubble diameter is in micron in the dissolved air water of producing, and dissolved air water is creamy white, and the bubble collapse time is about 1 times of dissolved air water that air compressor produces in the decompression dispose procedure, and dissolved air water quality height has improved the flotation treatment effect.
2, without air compressor not only energy-conservation but also environmental protection.
3, dissolving stable level, the handled easily management, no complex construction in jar, cost is low.
4, ejector is made up of six partial monosomies, and assembling and dismounting are all very convenient.
5, ejector is equipped with setting nut, adjustable joint gas-water ratio, and system operates steadily.
6, substitute reliever with reducing valve, not only economy but also difficult the obstruction.
Description of drawings
Fig. 1 produces dissolved air water device synoptic diagram for the conventional air compressor;
Fig. 2 is the ejector structural representation;
Fig. 3 is the current ejector aerated water preparation device synoptic diagram.
Embodiment
Specify the utility model below in conjunction with embodiment.As shown in Figure 3, be the current ejector aerated water preparation device synoptic diagram, described current ejector aerated water preparation device is made up of stage chamber pump 1, glass rotameter 3, dissolving 4, flotation cell water-in 5, flotation cell 7, slag chute 8, water outlet 9, current stabilizer 10 and ejector 11.Stage chamber pump 1 connects current stabilizer 10, current stabilizer 10 connects glass rotameter 3, glass rotameter 3 connects the top inlet of dissolving 4, the outlet at bottom of dissolving 4 connects the dissolved air water inlet that is positioned at flotation cell 7 one side bottoms, flotation cell 7 one side roof parts are provided with flotation cell water-in 5, flotation cell 7 opposite side tops are provided with slag chute 8, flotation cell 7 opposite side bottoms connect outlet sump, the top of outlet sump is provided with water outlet 9, the outlet sump bottom has pipeline to be connected with stage chamber pump 1 import, described current stabilizer 10 middle parts also are connected with ejector 11 imports, ejector 11 outlets are connected with stage chamber pump 1 inlet channel, form a circulation loop, be used for extracting air and produce dissolved air water.
As shown in Figure 2, be the ejector structural representation, described ejector 11 is made up of nozzle 101, setting nut 102, air chamber 103, suction opening 104, trunnion 105 and tail pipe 106.Nozzle 101 links to each other with current stabilizer 10 middle parts, a side of air chamber 103 is located in its outlet, nozzle 101 is provided with setting nut 102 with the junction of air chamber 103, the sidewall of air chamber 103 is provided with suction opening 104, the opposite side of air chamber 103 connects trunnion 105, trunnion 105 union tails 106, the outlet of tail pipe 106 connects the pipeline between outlet sump bottom and the stage chamber pump 1.
Pipeline between the dissolved air water inlet of the outlet at bottom of described dissolving 4 and flotation cell 7 is provided with reducing valve 12.
The exit of the ingress of described nozzle 101 and tail pipe 106 all is provided with variable valve.Described ejector 11 is arranged on vertical direction, and described nozzle 101 is located at upside, and tail pipe 106 is located at downside.
During work, flotation cell 7 handle rear section water outlets gravity flow to the ingress of multistage impeller pump 1 as the water source of producing dissolved air water. stage chamber pump 1 is being not less than the direct draught work of 1 meter head, water after the supercharging flows into from dissolving 4 tops inlet through metering. the operating pressure 0.30Mpa of dissolving 4～0.50Mpa, 4～5 minutes residence time, account for 5%～7% pressure water simultaneously in this and flow into ejector 11 from current stabilizer 10, current penetrate through nozzle 101 outlets, because the contraction in cross section, flow velocity increases, the static pressure at this place is sharply descended, when static pressure drops to certain numerical value, the air of outside just flows into air chamber 103 by suction opening 104 endlessly, gas-liquid two-phase mixes the violent turbulent fluctuation of generation through trunnion 105, it is soluble in water that shearing makes in the water air become micro-bubble, flow into stage chamber pump 1 simultaneously with the water outlet of flotation part again from tail pipe 106 discharges after forming dissolved air water, air water obtains thorough mixing once more. and the dissolved air water of producing is by glass rotameter 3 meterings, after dissolving 4 top water distributions, flow into dissolving 4, stop 4～5min, present the lactous dissolved air water, flow out by dissolving 4 bottoms again, entering flotation cell 7. dissolved air waters after reducing valve 12 decompressions mixes mutually with the waste water that enters from flotation cell water-in 5 in flotation cell, dissolved air water camber dispersive micro-bubble just is attached on the pollutants in waste water, float then and removed by slag scraper, realize removal pollutent in the waste water to the water surface.
Adjust nut 102 and be used to regulate gas-water ratio, promptly when the water yield changes in the flotation cell, regulate and adjust nut 102, the control amount of air drawn makes flotation cell stability and high efficiency ground move.
The variable valve in the exit of the ingress of described nozzle 101 and tail pipe 106 is used to regulate the ratio of the jet water yield and dissolved air water amount.
This device can be used for handling 5m
3/ h～500m
3/ h flotation treatment project, specific examples is as follows:
Embodiment 1
The treatment capacity 25m of the knitting bleaching dyeing and printing sewage of Shanghai International Automobile City Tourist Festival
3/ h, flotation processing, the COD of water outlet after the biochemical treatment are carried out in water outlet again after the biochemical treatment
Cr=400～500mg/L, SS=160～250mg/L.Adopt the stage chamber pump 1 of model 1/2GL-5 * 2, the current stabilizer 10 of Φ 190 * 250, the reducing valve 12 of 4, six DN15 of dissolving of Φ 500 * 3000.Operation result shows: COD
CrBelow the water outlet 100mg/L, SS water outlet 7～10mg/L has improved the flotation treatment effect, especially SS clearance height.Dissolved air water presents oyster white, and in the 1L graduated cylinder, the bubble collapse time is 5～6min; And the dissolved air water bubble collapse time that air compressor machine is produced is generally 2～3min.Current ejector aerated water preparation device is easy to operate, and the dissolving stable level time is long, and no air pocket is emerged in the flotation cell, and treatment effect is stable.
Embodiment 2
The knitting bleaching dyeing and printing sewage in Kunshan, Jiangsu, treatment capacity 40m
3/ h, water inlet COD
Cr=600～900mg/L, SS=400～600mg/L.Adopt the centrifugal stage pump 1 of 50TSWA * 5 in the device, the current stabilizer 10 of Φ 219 * 250, the reducing valve 12 of 4, six DN20 of dissolving of Φ 800 * 3500.
Operation result shows: COD
CrWater outlet 110～130mg/L, SS water outlet 10～12mg/L, flotation is handled very desirable, especially SS clearance height.It is long to possess the bubble collapse time equally, easy to operate, advantages such as effect stability.
Claims (4)
1. current ejector aerated water preparation device, comprise stage chamber pump (1), stage chamber pump (1) outlet connects current stabilizer (10), current stabilizer (10) connects glass rotameter (3), glass rotameter (3) connects the top inlet of dissolving (4), the outlet at bottom of dissolving (4) connects the dissolved air water inlet that is positioned at flotation cell (7) one side bottoms, flotation cell (7) one side roof parts are provided with flotation cell water-in (5), flotation cell (7) opposite side top is provided with slag chute (8), flotation cell (7) opposite side bottom connects outlet sump, the top of outlet sump is provided with water outlet (9), the bottom of outlet sump connects stage chamber pump (1) import, it is characterized in that described current stabilizer (10) middle part also is connected with ejector (11);
Wherein, described ejector (11) comprises the nozzle (101) that links to each other with current stabilizer (10), a side of air chamber (103) is located in the outlet of nozzle (101), nozzle (101) is provided with setting nut (102) with the junction of air chamber (103), the sidewall of air chamber (103) is provided with suction opening (104), the opposite side of air chamber (103) connects trunnion (105), trunnion (105) union tail (106), and the outlet of tail pipe (106) connects the pipeline between outlet sump bottom and stage chamber pump (1) import.
2. a kind of current ejector aerated water preparation device as claimed in claim 1 is characterized in that, the pipeline between the dissolved air water inlet of the outlet at bottom of described dissolving (4) and flotation cell (7) is provided with reducing valve (12).
3. a kind of current ejector aerated water preparation device as claimed in claim 1 is characterized in that, the exit of the ingress of described nozzle (101) and tail pipe (106) all is provided with variable valve.
4. a kind of current ejector aerated water preparation device as claimed in claim 1 is characterized in that, described ejector (11) is arranged on vertical direction, and described nozzle (101) is located at upside, and tail pipe (106) is located at downside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200758875U CN201458786U (en) | 2009-08-06 | 2009-08-06 | Aerated water preparation device of jet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200758875U CN201458786U (en) | 2009-08-06 | 2009-08-06 | Aerated water preparation device of jet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201458786U true CN201458786U (en) | 2010-05-12 |
Family
ID=42386139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200758875U Expired - Lifetime CN201458786U (en) | 2009-08-06 | 2009-08-06 | Aerated water preparation device of jet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201458786U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618896B (en) * | 2009-08-06 | 2012-06-27 | 上海天丰环保有限公司 | Current ejector aerated water preparation device |
| CN103506227A (en) * | 2013-09-27 | 2014-01-15 | 北京科技大学 | Pulse-jet-type foam flotation machine |
| CN112759022A (en) * | 2020-12-31 | 2021-05-07 | 上海蓝科石化环保科技股份有限公司 | Closed air floatation device and air floatation method |
-
2009
- 2009-08-06 CN CN2009200758875U patent/CN201458786U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618896B (en) * | 2009-08-06 | 2012-06-27 | 上海天丰环保有限公司 | Current ejector aerated water preparation device |
| CN103506227A (en) * | 2013-09-27 | 2014-01-15 | 北京科技大学 | Pulse-jet-type foam flotation machine |
| CN103506227B (en) * | 2013-09-27 | 2015-04-29 | 北京科技大学 | Pulse-jet-type foam flotation machine |
| CN112759022A (en) * | 2020-12-31 | 2021-05-07 | 上海蓝科石化环保科技股份有限公司 | Closed air floatation device and air floatation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |