CN85102383A - Water-liquid-gas jet gas-exhauster with two-tage suction - Google Patents
Water-liquid-gas jet gas-exhauster with two-tage suction Download PDFInfo
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- CN85102383A CN85102383A CN 85102383 CN85102383A CN85102383A CN 85102383 A CN85102383 A CN 85102383A CN 85102383 CN85102383 CN 85102383 CN 85102383 A CN85102383 A CN 85102383A CN 85102383 A CN85102383 A CN 85102383A
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- China
- Prior art keywords
- water
- pump
- mixing tube
- gas
- jet pump
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Abstract
Invention relates to pump generic liquid-gas jetting exhaust technique field.This machine is made up of water pump, jet pump and water tank.Goal of the invention is to improve water-gas jet pump efficiency to cut down the consumption of energy.Inventive features is to add a straight length in order to change fluidised form between the nozzle of jet pump and mixing tube, help air-breathing and fully and effectively pass and setting up and having verified the theoretical characteristics formula that is suitable for this structure, thereby obtain this interpolation Guan Yuyuan mixing tube optimal design data.Manufactured serial model machine according to this, measured performance is compared with existing uniform machines increases by 1.0～1.5 times of gettering quantities.The present invention also is applicable to the liquid-gas jetting pump of other occasion.This machine can be used to make vacuum or malleation conveying gas.
Description
The present invention relates to the pump class, belong to liquid-gas jetting exhaust technique field.
The claimant provides following and has authoritative weight and representational prior art data.
1. (Soviet Union) E, R Valeriy Sokolov, H, M Jin Geer work " sparger " chapter 7 water-air ejector, Science Press, 1977, Huang Qiuyun translates.
2. (Soviet Union) " Т Е П Л О Э Н Е Р Г Е Т И К А " (thermal power) 1964No7 carries the other Germania of Л, Д, Г. И. Ye Feimoqi inscription on ancient bronze objects chapter, P.44.
3. " ZSB-60 type water jet pump ", Qingtian county, Zhejiang province farm build four factory's samples.Shanghai medical industry designing institute design drawing.Identify through unit representatives such as 57 scientific research institutions of 12 provinces and cities, obtain Zhejiang Province's outstanding scientific and technological achievement third prize in 1979.
The object of the invention is to improve dynamic efficiency, cuts down the consumption of energy.
Summary of the invention:
Fig. 1 is water-liquid-gas jet gas-exhauster with two-tage suction of the present invention.It is mainly by Centrifugal water pump (1), and water-gas jet pump (2) and water tank (3) are formed.Water pump draws water from water tank and delivers to jet pump, and air-breathing and pressurized stream is to water tank through jet pump, and the gas-liquid two-phase medium separates in case, and gas is discharged or is depressed into process system through the top discharge tube and uses, and water flow to water pump from the bottom water pipe and recycles.The jet pump intakeport can connect vacuum system and produce vacuum, also can connect normal pressure or have pressing system process gas to be delivered to the production system of back.
Water-gas jet pump in the existing similar unit all adopts conventional version, promptly by nozzle (2-1), sucking pipe (2-2), mixing tube (2-3) and diffuser pipe
(2-4) forms, and press water penetrates the gas that from intakeport enters of back Volume around inhaling from nozzle, brings to mixing tube and mixes and transmit kinetic energy, changes through diffuser pipe and changes into Static pressure and see off.
The present invention is characterised in that and adds first-class footpath straight length (2-5) between nozzle and mixing tube, makes the gas branch do two-stage and sucks the two-stage mixing.New structure has changed internal flow state, closely knit liquid stream is given disperseed earlier and the more unexpected expansion of generation on the certain distance that adds before pipe exports, thereby produced best emulsion gas mixing jet for former mixing tube, under reasonable size, can produce bigger gettering quantity and utilize the energy of jet core more fully and can reduce kinetic energy unhelpful loss when transmitting.For seeking the optimum size ratio and grasping operating characteristics and set up the theoretical characteristics formula that is suitable for this type structure, experimental verification already.Rely on this characteristic type, thereby it is as follows to have obtained this interpolation optimum size ratio section and former mixing tube by a large amount of calculating and experiment, adopts this optimum data can obtain the highest dynamic efficiency.
Give fixed suction and ejection volume flow ratio u
0Be 1.0 2.0 3.0
Then best f
2/ f
12.0 2.0 3.0
Best f
3/ f
21.2 1.5 1.5
F refers to cross-section area; Leftover bits and pieces 1,2 and 3 refers to the nozzle outlet respectively, adds pipe and former isometrical mixing tube.
The interpolation length of tube is 10 ± 1 with the optimum range of its internal diameter ratio.
Former mixing tube is 13 ± 1 corresponding to the optimum range of the length under this pattern and its internal diameter ratio.
The theoretical characteristics formula that is suitable for the two-stage suction is
(h
2)/(h
1)=m
-1 1M
-1 2(2-φ
3-1K
3-1λ (1+ △ u
01) (continued on next page)
（1+△
2-1u
01）·m
-1 1-（2+φ
3-2K
3-2λ-η
d）·（1+△u
c）
（1+△
2-2u
c）·m
-1 1·m
-1 2〕
△
2-1＝ (T
1)/(T
2)
△
2-2＝ (T
1)/(T
2) · (P
2)/(P
3-2)
P
3-2＝0.5｛P
4-α+〔（P
4-α）
2-4αu
cP
2(T
1)/(T
2) 〕
0.5｝
α＝η
d·h
1(1+△u
0)/(m
2 1m
2 2)
H in the formula
1The dynamic pressure of-nozzle; h
2-gas boosting; P
2, P
4-suction inlet and outlet pressure; T
1, T
2-water temperature and temperature; u
01-first order volume mass ratio of induced-to-inducing air; The heavily rate ratio of △-gas and water; λ-friction factor; η
d-extension pressur efficiency; φ
2-1, φ
3-2The mixing tube λ of-first and second grade and total correction factor of dynamic pressure are by posterior infromation value of the present invention.
The present invention also is applicable to that any other uses the occasion of liquid-gas jetting pump.
The advantage that the present invention is compared with prior art had be under the condition of same gas boosting and the ratio of nozzle inside and outside differential pressure gettering quantity with 1.0～1.5 times of the different increases of operating parameter, thereby energy consumption reduces by 50～60%(and sees Fig. 2,3 and 4).
Description of drawings:
Fig. 1 is the unit schematic representation.Working procedure as previously mentioned.The circulating water regular supply.Vacuumize or the malleation conveying gas all can.Material is decided with the gas medium characteristic.Water pump and water tank and jet pump look with the Households condition tightly Minato be combined on the substrate, also can be installed separately.
A jet pump high position has bigger energy consumption to save when installing.
Fig. 2 for water-gas jet pump of the present invention with shown in prior art 1 experimental performance relatively.u
0Be that suck and volume flow ratio ejection (by the operation attitude); P-pressure, before 1, the 2 and 4 finger nozzles of getting a foothold, intakeport and jet pump outlet; η-nozzle efficient.Curve A is the present invention's maximality energy line.
Fig. 3 compares for the performance of the present invention and prior art 2.The same Fig. 2 of symbol.Curve A is a maximality energy line of the present invention.
Fig. 4 compares for the performance of the present invention and prior art 3.The volume hour flow (operation attitude) of V for sucking, P
27.5 kilowatts of machine operation. of Refer to the intakeport absolute pressure.Curve A is a performance line of the present invention.The two all uses
Already make serial unit manufacturing figure according to optimal design data provided by the invention, and already made model machine test (Fig. 2～4 are the partial properties data), obtained above-mentioned effect. Manufactory with common process ability all can implement the present invention.
Claims (7)
- The present invention relates to pump class water and spray the exhaust technique field.Air exhauster is made up of centrifugal water pump, water-gas jet pump and water tank.Used water-gas jet pump the system of existing similar mechanism of qi partly is connected to form in proper order by nozzle, induction chamber, mixing tube and diffuser pipe four.Feature of the present invention is to add first-class footpath straight length between the nozzle of water-gas jet pump and mixing tube inlet, and set up the characteristic type that is suitable for this structural type, thereby by calculating the optimum size ratio that searches out former mixing tube this interpolation pipe and that be suitable for this structure with experiment.Promptly
- When giving fixed suction and ejection volume flow ratio u 0For: 123
- Best f 2/ f 12.0 2.0 3.0
- Best f 3/ f 21.2 1.5 1.5
- F refers to cross-section area, and leftover bits and pieces 1,2 and 3 refers to the nozzle outlet respectively, adds the isometrical mixing tube of Guan Yuyuan.
- This interpolation pipe range is 10 ± 1 with the optimum range of its internal diameter ratio
- The length of former mixing tube under this pattern is 13 ± 1 with the optimum range of its internal diameter ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85102383A CN85102383B (en) | 1985-04-01 | 1985-04-01 | Liquid-gas jet gas-exhauster with two-tage suction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85102383A CN85102383B (en) | 1985-04-01 | 1985-04-01 | Liquid-gas jet gas-exhauster with two-tage suction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85102383A true CN85102383A (en) | 1986-10-01 |
| CN85102383B CN85102383B (en) | 1987-07-29 |
Family
ID=4792467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85102383A Expired CN85102383B (en) | 1985-04-01 | 1985-04-01 | Liquid-gas jet gas-exhauster with two-tage suction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85102383B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101146584B (en) * | 2005-02-23 | 2010-06-16 | Dps布里斯托尔（控股）有限公司 | Separator to separate a liquid/liquid/gas/solid mixture |
-
1985
- 1985-04-01 CN CN85102383A patent/CN85102383B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101146584B (en) * | 2005-02-23 | 2010-06-16 | Dps布里斯托尔（控股）有限公司 | Separator to separate a liquid/liquid/gas/solid mixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85102383B (en) | 1987-07-29 |
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