CN2153666Y - Multi-passage water-gas jet pump - Google Patents
Multi-passage water-gas jet pump Download PDFInfo
- Publication number
- CN2153666Y CN2153666Y CN 93201990 CN93201990U CN2153666Y CN 2153666 Y CN2153666 Y CN 2153666Y CN 93201990 CN93201990 CN 93201990 CN 93201990 U CN93201990 U CN 93201990U CN 2153666 Y CN2153666 Y CN 2153666Y
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- CN
- China
- Prior art keywords
- chamber
- gas
- water
- trunnion
- jet pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model discloses a sucking device which uses water as the power and is used in systems of utilities, containers, pipelines, etc. without air condensation. The utility model is composed of a water inlet pipe, a water nozzle, a sucking-in chamber and a throat pipe. The contracted section of the throat pipe is arranged on the lower part of the sucking-in chamber, and the end of the throat pipe is provided with a leaving velocity injection pump. The sucking device is characterized in that an air inlet pipe is communicated with an annular air distributing chamber, and an air guide pipe is connected for communication between the air distributing chamber and each air nozzle which is positioned on the periphery of the water nozzle. The air nozzle of the utility model can be in a chamfering structure, small holes are arranged on the wall of the annular air distributing chamber, and the contracted section of the throat pipe is in a streamline shape and is also provided with a buffering pressure equalizing chamber. A stirring fin is arranged in the throat pipe.
Description
It is power that the utility model relates to a kind of water, as the aspirator of incondensable gas in the systems such as equipment, container, pipeline.The utility model is made of intake pipe, water nozzle, suction chamber, trunnion, in the suction chamber bottom trunnion contraction section is arranged, and trunnion is not held and is provided with the leaving velocity jet pump.
China utility model patent CN88211096.9 discloses a kind of low-consumption high-efficiency multichannel water-gas jet pump with the trunnion contraction section, though this patent has been improved the deficiency of original technology, have aspiration rising, advantage of low energy consumption, but this patent is still keeping in original technology ejection water (flow) direction vertical motion in the gas motion direction and water nozzle in the suction chamber, causes the deficiency of portion of energy loss.Secondly, the trunnion contraction section tube wall in this patent contacts with gas, aqueous mixtures and produces vibration, noise, and causes cavitation phenomenon in the part.
The purpose of this utility model provides a kind of prior art deficiency that overcomes, can make the moving direction that sucks air-flow (or most of air-flow) in the air chamber consistent with the water (flow) direction that sprays through the water nozzle or roughly consistent, improve the multichannel water-gas jet pump of suction chamber air-flow suction effect; Another purpose of the present utility model is by improving trunnion contraction section structure, to reduce or to improve water in the trunnion contraction section, gas mixture a fluid stream car and the caused vibration of contacting of tube wall, noise and cavitation phenomenon.
The purpose of this utility model adopts following measure to realize: the suction tude of jet pump is communicated with annular gas distributing chamber, gas distributing chamber be each positioned at the gas blowout on every side of water nozzle and have air pipe to be communicated with between chewing.
The purpose of this utility model also can realize by following measure:
Gas blowout is chewed and is the structure of cutting sth. askew.Make the tangential suction of gas along water nozzle ejection water bundle, tiltedly Wrong Shipment is moving in opposite directions to have strengthened the interior particle of the water bundle periphery and the air-flow ring of encirclement, has strengthened the gas-vapor mix ability.
Also can open number row apertures on the wall that annular gas distributing chamber and suction chamber are separated by in the utility model, this can further reduce the air motion resistance.
Trunnion contraction section of the present utility model is streamlined, and water, air flow stream are lowered by resistance.Buffering is set on the trunnion contraction section all presses the chamber, can avoid or reduce vibration and noise, alleviate cavitation phenomenon greatly.All press the structure of chamber can be about buffering referring to accompanying drawing and follow-up explanation.
Trunnion inwall of the present utility model is provided with the flow-disturbing fin.The effect one of this fin is to increase disturbance, impels gas, water to mix, and can prevent that gasification from separating accumulation, improves compression efficiency; Secondly can prevent that air mass that bottom air water a fluid stream takes place from building up and air mass on move.
Advantage of the present utility model is as follows:
1, mixing chamber air-flow in the prior art, current crisscross motion have been solved and the water beam deflection that causes causes the energy loss that causes with the aditus laryngis bump.Increase the area of contact of air water, improved the capacity for work of pumping efficiency and water bundle.
Show by experiment that 2, the utility model can improve the degree of vacuum of the system of being sucked.
3, reduce noise, vibration by the improvement that trunnion is shunk, and reduced the cavitation erosion tendency.
4, because the trunnion inwall is provided with the disturbance fin, can improve compression efficiency, stop air mass the segregation of trunnion portion, accumulation and on move.
Description of drawings:
Fig. 1 is the utility model plan view.Fig. 1 also is a Figure of abstract.Fig. 2 be Figure 1A-A to sectional view, Fig. 3 is the gentle nozzle partial sectional view of water nozzle.Fig. 4 all presses the partial sectional view of chamber for trunnion contraction section and buffering.
The utility model elaborates by reference to the accompanying drawings:
Operation principle of the present utility model is as follows:
Water under high pressure enters water nozzle 2 and sprays into suction chamber 5 from water pipe 1, chews 3 places generation negative pressure in gas blowout simultaneously a large amount of gases are sucked from annular gas distributing chamber 4. Tiltedly Wrong Shipment is moving in opposite directions because the structure of cutting sth. askew that gas blowout is chewed makes water bundle periphery and air-flow ring of encirclement internal layer particle. Both strengthened the mixing wastewater with air ability, and made again water more concentrated under gas enclosure effect, Avoids or reduces the water bundle the splashing of suction chamber base plate, cause the flow separation rebound phenomena, make current can enter smoothly the trunnion section. Because the negative pressure of suction chamber 5 makes again the residual gas in the annular gas distributing chamber open in the aperture suction chamber 5 on wall 20.
The gas-liquid mixture 23 that enters trunnion contraction section 6 flows in the trunnion 26 by streamlined tube wall 30. When gas pressure change takes place, because buffering all presses gap 29 and guide hole 21 in the chamber 27 to consist of Buffer loop can be eliminated pressure and change, and makes on the aditus laryngis downforce consistent, and this section cavitation of both having avoided (or reducing) can be eliminated again because flow velocity increases gas that the step-down that produces causes separates and build up the phenomenon of wafing on the segregation, has improved simultaneously pumping efficiency.
Gas, water combined beam at trunnion 26 have increased disturbance between air water under the effect of disturbance fin, impel gas, water to mix, and can prevent that the gas that betides this section in the prior art from separating accumulation, and reduce the deficiency of compression efficiency.
An exemplary embodiments of the present utility model.
Adopt the accompanying drawing structure, water nozzle diameter phi 30mm, trunnion 26 length are 70 times of nozzle diameters, the water design discharge is>450 meters
3/ h, inlet gauge pressure 0.3MPa, this moment, suction chamber degree of vacuum was lower than 0.004MPa.
Claims (6)
1, a kind of multichannel water-gas jet pump, constitute by intake pipe, water nozzle, suction chamber, trunnion, the bottom, chamber is put in suction has trunnion to receive section, the trunnion end has the leaving velocity jet pump, it is characterized in that the suction tude bottom is communicated with annular gas distributing chamber, gas distributing chamber be each positioned at gas blowout around the water nozzle and have air pipe to be communicated with between chewing.
2, multichannel water according to claim 1-gas jet pump is characterized in that gas blowout chews outlet and be the structure of cutting sth. askew.
3, multichannel water according to claim 2-gas jet pump is characterized in that the wall that annular gas distributing chamber and suction chamber are separated by is provided with number row aperture.
4, according to claim 1 or 2 or 3 described multichannel water-gas jet pumps, it is characterized in that described trunnion contraction section is streamlined.
5, multichannel water according to claim 4-gas jet pump is characterized in that described trunnion contraction section is provided with buffering and all presses the chamber.
6, multichannel water according to claim 5-gas jet pump is characterized in that inner tube wall is provided with the flow-disturbing fin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 93201990 CN2153666Y (en) | 1993-01-17 | 1993-01-17 | Multi-passage water-gas jet pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 93201990 CN2153666Y (en) | 1993-01-17 | 1993-01-17 | Multi-passage water-gas jet pump |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2153666Y true CN2153666Y (en) | 1994-01-19 |
Family
ID=33786303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 93201990 Expired - Fee Related CN2153666Y (en) | 1993-01-17 | 1993-01-17 | Multi-passage water-gas jet pump |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2153666Y (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102003418A (en) * | 2010-10-27 | 2011-04-06 | 上海理工大学 | Ejector |
CN103148026A (en) * | 2011-12-06 | 2013-06-12 | 洛阳蓝海实业有限公司 | Two-stage multi-nozzle vacuum-pumping device |
CN104747507A (en) * | 2015-01-12 | 2015-07-01 | 启东市海信机械有限公司 | Water jetting air pumping device |
CN106460872A (en) * | 2014-05-14 | 2017-02-22 | 丹佛斯有限公司 | Ejector arrangement |
-
1993
- 1993-01-17 CN CN 93201990 patent/CN2153666Y/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102003418A (en) * | 2010-10-27 | 2011-04-06 | 上海理工大学 | Ejector |
CN103148026A (en) * | 2011-12-06 | 2013-06-12 | 洛阳蓝海实业有限公司 | Two-stage multi-nozzle vacuum-pumping device |
CN106460872A (en) * | 2014-05-14 | 2017-02-22 | 丹佛斯有限公司 | Ejector arrangement |
CN106460872B (en) * | 2014-05-14 | 2019-03-15 | 丹佛斯有限公司 | Injector arrangement |
US10253788B2 (en) | 2014-05-14 | 2019-04-09 | Danfoss A/S | Ejector arrangement |
CN104747507A (en) * | 2015-01-12 | 2015-07-01 | 启东市海信机械有限公司 | Water jetting air pumping device |
CN104747507B (en) * | 2015-01-12 | 2017-02-22 | 启东市海信机械有限公司 | Water jetting air pumping device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |