CN201982382U - Multistage multi-pipe high-efficiency jet pump - Google Patents
Multistage multi-pipe high-efficiency jet pump Download PDFInfo
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- CN201982382U CN201982382U CN2011200193576U CN201120019357U CN201982382U CN 201982382 U CN201982382 U CN 201982382U CN 2011200193576 U CN2011200193576 U CN 2011200193576U CN 201120019357 U CN201120019357 U CN 201120019357U CN 201982382 U CN201982382 U CN 201982382U
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- jet
- pump housing
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Abstract
The utility model relates to a multistage multi-pipe high-efficiency jet pump, which comprises a pump body, a suction pipe, a first-stage jet pipe, a second-stage jet pipe and a third-stage jet pipe, wherein the outlet of the first-stage jet pipe is arranged in the pump body, the outlet of the second-stage jet pipe is arranged in the suction pipe, the outlet of the third-stage jet pipe is arranged in the suction pipe and between the second-stage jet pipe and the pump body, and the outlet direction of each jet pipe is respectively along the medium-flowing direction of each jet pipe in a pipeline. In the utility model, sucked medium are sucked by adopting a multistage-jet mode, and a negative pressure is respectively generated by jets in a plurality of different areas of equipment to form a suction force for the medium flowing through the areas, so that the sucked medium are accelerated to flow through the areas to form a multistage jet, the flow-speed loss of the sucked medium in the pipeline or the pump body is made up, and therefore the sucking capability of the jet pump and the sucked quantity of the sucked medium are greatly improved, and the requirement of higher-efficiency medium transportation is met.
Description
Technical field
The utility model relates to a kind of Jet injector, particularly a kind of multi-stage multi-pipe jet injector with high efficiency.
Background technique
The existing equipment that adopts the jet suction mode of penetrating to carry out FLUID TRANSPORTATION and mixing mainly is Venturi tube or Jet injector, its body is divided into three parts, the front portion is an increaser, is provided with outlet, is used to connect output pipeline, the centre is a trunnion, be provided with the suction loophole, be used to connect the pipeline of being penetrated medium by suction, the rear portion is a reducing pipe, be provided with import, being used to connect provides the high-pressure spray of high-pressure spray medium pipeline.During use, from the jet media of high pressure pipe line behind reducing pipe, form the very high jet of flow velocity at trunnion, the quilt suction that the suction loophole connects is penetrated medium and enter trunnion under the effect of jet flow negative pressure, mix the formation mixed medium with jet media, together penetrate, enter output pipeline, realized the purpose of high-pressure delivery or mixing thus from outlet.The defective of this equipment is: be subjected to the restriction of equipment and relevant device, under certain occasion, also be difficult to satisfy the requirement of delivery pressure and transfer efficiency.
In addition, the jet pipe of some Jet injectors is positioned at the side of the pump housing and extends to the pump housing, its extension is to being sucked medium or being sucked medium and the mixture of jet media has formed certain stopping in the pump housing, cause being sucked medium or be sucked medium and the mixture of jet media serious to jet pipe abrasion, caused Jet injector to reduce working life.
The model utility content
For overcoming the above-mentioned defective of prior art, the utility model provides a kind of multi-stage multi-pipe jet injector with high efficiency, adopts the mode of multistage jet to aspirate being sucked medium, and suction force is big, and suction effect is good, can satisfy the requirement of more high efficiency medium transport.
The utility model realizes that the technological scheme of above-mentioned purpose is: a kind of multi-stage multi-pipe jet injector with high efficiency, comprise the pump housing, one-level jet pipe and suction pipe, described one-level jet pipe is connected with the described pump housing, be communicated with the inner chamber of the described pump housing, the MEDIA FLOW of its outlet in the described pump housing is to direction, described suction pipe is connected with the described pump housing, be communicated with the inner chamber of the described pump housing, also be provided with the secondary jets pipe, described secondary jets pipe is connected with described suction pipe, be communicated with the inner chamber of described suction pipe, the MEDIA FLOW of its outlet in described suction pipe is to direction.
Described multi-stage multi-pipe jet injector with high efficiency can also comprise three grades of jet pipes, described three grades of jet pipes are connected with described suction pipe, be communicated with the inner chamber of described suction pipe, the position is between the described secondary jets pipe and the described pump housing, and the MEDIA FLOW of its outlet in described suction pipe is to direction.
The part that described secondary jets pipe is positioned at described suction pipe can be provided with the secondary jets pipe extension of extending along described suction pipe radial direction, the end sealing of described secondary jets pipe extension, described secondary jets pipe extension can be provided with the cross pipe that one or several intersect and be communicated with it along described suction pipe radial direction, the closed at both ends of described cross pipe, the quantity of the outlet of described secondary jets pipe can be several, can evenly be arranged on described secondary jets pipe extension and the cross pipe.
MEDIA FLOW can evenly be provided with several injection pipes to direction in the described suction pipe in described secondary jets pipe extension and cross pipe upper edge, and the jetburner of described injection pipe is the outlet of described secondary jets pipe.
The ratio of the internal diameter of described injection pipe and described suction pipe preferably is not more than 1: 5.
Described suction pipe can comprise sucking to be responsible for and some suction manifolds, some described suction manifold one ends connect described suction to be responsible for, the other end connects the described pump housing, and be communicated with the inner chamber of the described pump housing, described secondary jets pipe is arranged on described suction and is responsible for, the quantity of described three grades of jet pipes can be identical with the quantity of described suction manifold, and correspondence is arranged on the described suction manifold one by one respectively.
One in some described suction manifolds can be connected on the rear wall of the described pump housing relative with the outlet of the described pump housing along the medial axis of the described pump housing, remaining described suction manifold can be connected on the sidewall of the described pump housing along one or more circumference of the described pump housing, is connected along the described suction manifold on the same circumference of the described pump housing and can evenly distributes.
Described suction manifold can be provided with the suction manifold extension that extends into the described pump housing, the bearing of trend of described suction manifold extension can be the direction that flows to along medium in the described pump housing, described three grades of jet pipes can penetrate outside the described pump housing and suction manifold extension in the described pump housing and the suction manifold extension, and be connected with the suction manifold extension with the described pump housing, be communicated with described suction manifold extension, the part that described three grades of jet pipes are positioned at described suction manifold extension along described suction manifold extension MEDIA FLOW to direction extend.
Described one-level jet pipe is positioned at the part of the described pump housing and can extends along the Way out of described suction manifold extension, the position of the outlet of described one-level jet pipe can be positioned at along the front end of the outlet of described suction manifold extension, the quantity of described one-level jet pipe can be several, can be identical with the quantity of described suction manifold and with the corresponding one by one setting of described suction manifold, perhaps the quantity with described suction manifold is different, can be connected along one or more circumference of the described pump housing on the sidewall of the described pump housing, be connected along the described one-level jet pipe on the same circumference of the described pump housing and can evenly distribute, perhaps the quantity with described suction manifold is different, can evenly distribute to be connected on the rear wall of the described pump housing.
Described one-level jet pipe, secondary jets pipe and three grades of jet pipes can be connected different jet media sources respectively or connect identical jet media source respectively by different pipelines, perhaps connect same jet pipe, described jet pipe can connect the jet media source, and the import of described suction pipe can connect and is sucked medium source.
The beneficial effects of the utility model: the utility model adopts the mode of multistage jet to aspirate being sucked medium, in the course of the work, a plurality of zoness of different of equipment are all owing to jet produces negative pressure, being sucked medium or being sucked medium and the mixture of jet media formation suction force its zone of flowing through, make and be sucked medium or be sucked medium and the mixture of jet media this zone of quickening to flow through, form multistage jet, remedy and be sucked medium or be sucked medium and the flow velocity loss of the mixture of jet media in the pipeline or the pump housing, increase substantially the suction capactity and the intake that is sucked medium of Jet injector thus, satisfy more high efficiency medium transport requirement, and the utility model can form sufficiently high delivery pressure, particularly when the medium that sucks is exhaust steam, because with being converted to liquid state after the jet media mixing, volume is obviously less, the volume and the flow velocity of mixed medium have been reduced thus, adopt the mode of the multistage jet of the application, constantly mend jet media, help reducing descending because of the exhaust steam flow velocity that the back smaller volume brings that condenses, multistage benefit of while is gone into jet more makes the medium momentum in the Jet injector increase step by step, help improving the media flow state in the Jet injector, improve the effect of utilizing of power, not only improved suction capactity thus, but also guaranteed delivery pressure, claimant's experiment, adopt multistage Jet injector of the present utility model, under the delivery pressure situation identical with parameter requests such as aspirations, can reduce the pressure head of water pump, reduce power consumption about 20%; The part that the secondary jets pipe is positioned at suction pipe adopts the X-shape pipeline, and secondary jets pipe outlet is set evenly on secondary jets pipe extension and cross pipe, can make everywhere jet media pressure of one-level jet location in the suction pipe, flow velocity and in its back-end because the negative pressure basis equalization that jet produces, help reducing turbulent flow and resistance, and improve suction force that is sucked medium and the mixing efficiency that is sucked medium and jet media; Several injection pipes evenly are set on secondary jets pipe extension and cross pipe, and make the internal diameter of injection pipe be far smaller than the internal diameter of suction pipe, can greatly improve the flow velocity of jet, thereby improve suction force and being sucked the suction effect of medium; The Way out of suction manifold extension, one-level jet pipe and three grades of jet pipes all be arranged to along MEDIA FLOW in the pump housing to direction, make flowing of medium in the jet, suction manifold of each jet pipe identical with the flow direction of medium in the pump housing, do not influence suction force each other, guaranteed the suction effect of Jet injector because of the counteracting of the power of generation; A plurality of suction manifolds extension, one-level jet pipe and three grades of jet pipe even settings on the pump housing, can make the pressure basis equalization in each outlet port, suction manifold extension in the pump housing, three grades of jet locations are jet media pressure, flow velocity basis equalization everywhere, help reducing turbulent flow and resistance, improve suction force and suction effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a plan view of the present utility model;
Fig. 3 is an A-A generalized section of the present utility model.
Embodiment
Referring to Fig. 1,2 and 3, the utility model provides a kind of multi-stage multi-pipe jet injector with high efficiency, comprises the pump housing 5, and the described pump housing is provided with pump housing import and outlet, and the outlet of the described pump housing can be arranged to convergent shape mouth, with convenient connection or formation jet with next stage equipment.
Described multi-stage multi-pipe jet injector with high efficiency also comprises suction pipe, one-level jet pipe 6, secondary jets pipe 2 and three grades of jet pipes 4, described suction pipe is connected with the described pump housing, be communicated with the described pump housing, the import of described suction pipe can connect and is sucked medium source, is used for the medium transport in the suction pipe to the described pump housing; Described secondary jets pipe penetrates in the described suction pipe outside described suction pipe, and be connected with described suction pipe, be communicated with the inner chamber of described suction pipe, the MEDIA FLOW of its outlet 21 in described suction pipe is to direction, be used in described suction pipe, forming first order jet, realization is to the suction that is sucked medium from the suction medium source, and the external diameter that described secondary jets pipe is positioned at the part of described suction pipe should leave and be sucked the passage 12 that medium passes through less than the internal diameter of described suction pipe; Described three grades of jet pipes can penetrate outside described suction pipe in the described suction pipe, and be connected with described suction pipe, be communicated with the inner chamber of described suction pipe, the position is between the described secondary jets pipe and the described pump housing, its be positioned at described suction pipe part can along described suction pipe MEDIA FLOW to direction extend, the MEDIA FLOW of its outlet in described suction pipe is to direction, be used in described suction pipe, forming second level jet, realization is to the suction of the one-level mixed medium in the described suction pipe (from the mixture that is sucked medium and first order jet media of described suction pipe), to increase the pressure and the flow velocity of mixed medium, described three grades of jet pipes are positioned at the external diameter of the part of described suction pipe should be less than the internal diameter of described suction pipe, leave and be sucked medium or be sucked medium and passage that the mixture of jet media passes through, the MEDIA FLOW of its outlet in described suction pipe is to direction, described three grades of jet pipes outlet can be arranged to conical outlet, so that form jet better; Described one-level jet pipe penetrates in the described pump housing outside the described pump housing, and be connected with the described pump housing, be communicated with the inner chamber of the described pump housing, its part that is positioned at the described pump housing is extended along the direction that flows to of described pump housing medium, the MEDIA FLOW of its outlet in the described pump housing is to direction, be used in the described pump housing, forming third level jet, realization (is sucked medium to the secondary mixed medium from the outlet of described suction pipe, the mixture of first order jet media and second level jet media) suction, described one-level jet pipe is positioned at the external diameter of the part of the described pump housing should be less than the internal diameter of the described pump housing, leave and be sucked medium or be sucked medium and passage that the mixture of jet media passes through, the outlet of described one-level jet pipe can be arranged to conical outlet, so that form jet better.
In order to improve the suction effect of one-level jet, the part that described secondary jets pipe is positioned at described suction pipe can be provided with the secondary jets pipe extension of extending along described suction pipe radial direction, the end of described secondary jets pipe extension is sealed or is connected on the tube wall of described suction pipe, the joint sealing, the quantity of the outlet of described secondary jets pipe can be several, can evenly be arranged on the described secondary jets pipe extension, further, described secondary jets pipe extension can be provided with the cross pipe that one or several intersect and be communicated with it along described suction pipe radial direction, the closed at both ends of described cross pipe, several described secondary jets pipe outlets can evenly be arranged on described secondary jets pipe extension and the cross pipe, a preferred cross pipe and the described secondary jets pipe extension of adopting is the decussation ways of connecting, guaranteeing one-level jet location jet media pressure everywhere like this, flow velocity and in its back-end because under the prerequisite of the negative pressure basis equalization that jet produces, can in described suction pipe, leave the medium channel of larger sectional area again, be convenient to be sucked passing through of medium, adopt this kind set-up mode to help reducing turbulent flow and resistance, and improve suction force that is sucked medium and the mixing efficiency that is sucked medium and jet media.
MEDIA FLOW can evenly be provided with several injection pipes to direction in the described suction pipe in described secondary jets pipe extension and cross pipe upper edge, the jetburner of described injection pipe constitutes the outlet of described secondary jets pipe, the internal diameter of described secondary jets pipe extension and described cross pipe usually can be identical or similar, described injection pipe can be not more than 1: 5 with the internal diameter of described secondary jets pipe extension or described cross pipe than usually, the ratio of the internal diameter of preferred described injection pipe and the internal diameter of described suction pipe is not more than 1: 10, as 1: 10,1: 12,1: 15,1: 18,1: 20 or 1: 30, in described secondary jets pipe extension and cross pipe, to spare pressure, the pressure and the exit velocity of each injection pipe are kept in balance basically, and guarantee that the one-level jet has sufficiently high flow velocity, thereby improve suction force and to being sucked the suction effect of medium, improve the media flow state in the suction pipe, reduce turbulent flow and power consumption.Described secondary jets pipe outlet can be arranged to conical outlet, so that form jet better.
Described suction pipe can comprise the suction person in charge 1 and some suction manifolds 3, some described suction manifold one ends connect described suction to be responsible for, the other end connects the described pump housing, and be communicated with the inner chamber of the described pump housing, some described suction manifolds can be connected on the sidewall of the described pump housing, also can partly be connected on the rear wall of the described pump housing (pump housing Way out is preceding), preferred one of them medial axis along the described pump housing is connected on the rear wall of the described pump housing, remaining described suction manifold is connected on the sidewall of the described pump housing along one or more circumference of the described pump housing, be connected along the suction manifold on the same circumference of the sidewall of the described pump housing and can evenly distribute, described secondary jets pipe is arranged on described suction and is responsible for, the quantity of the described three grades of jet pipes preferably quantity with described suction manifold is identical, and connect one to one with described suction manifold extension, to guarantee that described suction manifold extension exports pressure medium and flow velocity basis equalization everywhere in the described pump housing.
Described suction manifold can be provided with the suction manifold extension that extends into the described pump housing, the bearing of trend of described suction manifold extension is preferably the direction that flows to along medium in the described pump housing, at this moment, described three grades of jet pipes can penetrate outside the described pump housing and suction manifold extension in the described pump housing and the suction manifold extension, and be connected with the suction manifold extension with the described pump housing, be communicated with described suction manifold extension, the part that described three grades of jet pipes are positioned at described suction manifold extension along described suction manifold extension MEDIA FLOW to direction extend, promptly along MEDIA FLOW in the described pump housing to direction extend.Adopt this kind setting, help improving the jet effect of described three grades of jet pipes in described suction manifold extension, and can directly the mixture that is sucked medium and jet media that forms behind the jet through the second time be sprayed the into described pump housing, convenient described one-level jet pipe aspirates once more to it.
Described three grades of jet pipes are positioned at the external diameter of the part of described suction manifold extension should be less than the internal diameter of described suction manifold extension, described three grades of jet pipes are positioned at the axis (center line of the part of described suction manifold extension, down with) preferably with the dead in line of described suction manifold extension, gap between the inwall of its outer wall and described suction manifold extension is wide circular gap, under this structure, in jet media in described three grades of jet pipes and the described suction manifold extension be sucked medium or be sucked medium and the mixture of jet media flow to identical, and gap pressure medium and flow velocity basis equalization everywhere helps reducing turbulent flow and resistance.
The optimum seeking site of the outlet of described one-level jet pipe is positioned at along the front end of the outlet that flows to the above suction manifold extension of direction of described pump housing medium, so that the outlet of described suction manifold extension is positioned at the negative pressure region that described one-level jet pipe jet forms, reach from the better suction effect of medium in the described suction manifold extension, the quantity of described one-level jet pipe can be several, preferably the quantity with described suction manifold extension is identical, also can be different, one or more circumference along the described pump housing are connected on the sidewall of the described pump housing, be connected along the described one-level jet pipe on the same circumference of the described pump housing and evenly distribute, perhaps the quantity with described suction manifold is different, evenly distribute and be connected on the rear wall of the described pump housing relative with the outlet of the described pump housing, described one-level jet pipe be positioned at the described pump housing part bearing of trend also preferably along described pump housing MEDIA FLOW to direction, when the quantity of the quantity of described one-level jet pipe and described suction manifold extension is identical, can correspondingly one by one be provided with between the two.
Described one-level jet pipe, secondary jets pipe and three grades of jet pipes can be connected different jet media sources respectively or connect identical jet media source respectively or connect same jet pipe, described jet pipe connects the jet media source, when described one-level jet pipe, secondary jets pipe are connected different jet media sources respectively with three grades of jet pipes, the pressure that should guarantee each jet media source can satisfy jet media and form jet smoothly, and do not exert an influence mutually cause wherein certain or certain two can not form jet.
The Way out of some described suction manifolds extension, one-level jet pipe and three grades of jet pipes all be arranged to along MEDIA FLOW in the pump housing to direction, make flowing of medium in the jet, suction manifold of each jet pipe identical with the flow direction of medium in the pump housing, do not influence suction force each other, guaranteed the suction effect of Jet injector because of the counteracting of the power of generation; Some described suction manifolds extension, one-level jet pipe and three grades of jet pipes are with respect to the even setting of the described pump housing, make the pressure basis equalization in each outlet port, suction manifold extension in the described pump housing, three grades of jet locations are jet media pressure, flow velocity basis equalization everywhere, help reducing turbulent flow and resistance, improve suction force and suction effect.
The diameter of each pipeline that the utility model is related can be according to the size and the suitable selection of requirement of engineering of Jet injector, described each pipeline all can adopt isometrical pipe, with convenient processing, can at least one be not isometrical pipe also, with flow velocity and the resistance requirement that adapts to diverse location.Can adopt the mode of welding, single injection-molded or other any suitable to be connected between described each pipeline and between each pipeline and the described pump housing, interconnecting when arbitrary body passes another body or the pump housing is and is tightly connected.
The utility model adopts the mode of multistage jet to aspirate being sucked medium, in the course of the work, a plurality of zoness of different of equipment are all owing to jet produces negative pressure, being sucked medium or being sucked medium and the mixture of jet media formation suction force its zone of flowing through, make and be sucked medium or be sucked medium and the mixture of jet media this zone of quickening to flow through, form multistage jet, remedied and be sucked medium or be sucked medium and the flow velocity loss of the mixture of jet media in the pipeline or the pump housing, increase substantially the suction capactity and the intake that is sucked medium of Jet injector thus, satisfied more high efficiency medium transport requirement.
Claims (10)
1. multi-stage multi-pipe jet injector with high efficiency, comprise the pump housing, one-level jet pipe and suction pipe, described one-level jet pipe is connected with the described pump housing, be communicated with the inner chamber of the described pump housing, the MEDIA FLOW of its outlet in the described pump housing is to direction, described suction pipe is connected with the described pump housing, be communicated with the inner chamber of the described pump housing, it is characterized in that also being provided with the secondary jets pipe, described secondary jets pipe is connected with described suction pipe, be communicated with the inner chamber of described suction pipe, the MEDIA FLOW of its outlet in described suction pipe is to direction.
2. multi-stage multi-pipe jet injector with high efficiency as claimed in claim 1, it is characterized in that also comprising three grades of jet pipes, described three grades of jet pipes are connected with described suction pipe, be communicated with the inner chamber of described suction pipe, the position is between the described secondary jets pipe and the described pump housing, and the MEDIA FLOW of its outlet in described suction pipe is to direction.
3. multi-stage multi-pipe jet injector with high efficiency as claimed in claim 2, it is characterized in that the part that described secondary jets pipe is positioned at described suction pipe is provided with the secondary jets pipe extension of extending along described suction pipe radial direction, the end sealing of described secondary jets pipe extension, described secondary jets pipe extension is provided with the cross pipe that one or several intersect and be communicated with it along described suction pipe radial direction, the closed at both ends of described cross pipe, the quantity of the outlet of described secondary jets pipe is several, evenly is arranged on described secondary jets pipe extension and the cross pipe.
4. multi-stage multi-pipe jet injector with high efficiency as claimed in claim 3, it is characterized in that MEDIA FLOW evenly is provided with several injection pipes to direction in the described suction pipe in described secondary jets pipe extension and cross pipe upper edge, the jetburner of described injection pipe is the outlet of described secondary jets pipe.
5. multi-stage multi-pipe jet injector with high efficiency as claimed in claim 4 is characterized in that the ratio of the internal diameter of described injection pipe and described suction pipe is not more than 1: 5.
6. as claim 2,3,4 or 5 described multi-stage multi-pipe jet injector with high efficiency, it is characterized in that described suction pipe comprises the suction person in charge and some suction manifolds, some described suction manifold one ends connect described suction to be responsible for, the other end connects the described pump housing, and be communicated with the inner chamber of the described pump housing, described secondary jets pipe is arranged on described suction and is responsible for, and the quantity of described three grades of jet pipes is identical with the quantity of described suction manifold, and correspondence is arranged on the described suction manifold one by one respectively.
7. multi-stage multi-pipe jet injector with high efficiency as claimed in claim 6, it is characterized in that a medial axis along the described pump housing in some described suction manifolds is connected on the rear wall of the described pump housing relative with the outlet of the described pump housing, remaining described suction manifold is connected on the sidewall of the described pump housing along one or more circumference of the described pump housing, is connected along the described suction manifold on the same circumference of the described pump housing evenly to distribute.
8. multi-stage multi-pipe jet injector with high efficiency as claimed in claim 7, it is characterized in that described suction manifold is provided with the suction manifold extension that extends into the described pump housing, the bearing of trend of described suction manifold extension is the direction that flows to along medium in the described pump housing, described three grades of jet pipes penetrate in the described pump housing and the suction manifold extension outside the described pump housing and suction manifold extension, and be connected with the suction manifold extension with the described pump housing, be communicated with described suction manifold extension, the part that described three grades of jet pipes are positioned at described suction manifold extension along described suction manifold extension MEDIA FLOW to direction extend.
9. multi-stage multi-pipe jet injector with high efficiency as claimed in claim 8, it is characterized in that described one-level jet pipe is positioned at the Way out extension of the part of the described pump housing along described suction manifold extension, the position of the outlet of described one-level jet pipe is positioned at the front end of the outlet of described suction manifold extension, the quantity of described one-level jet pipe is several, with the identical and corresponding one by one setting of the quantity of described suction manifold, perhaps the quantity with described suction manifold is different, one or more circumference along the described pump housing are connected on the sidewall of the described pump housing, be connected along the described one-level jet pipe on the same circumference of the described pump housing and evenly distribute, perhaps the quantity with described suction manifold is different, and evenly distributing is connected on the rear wall of the described pump housing.
10. multi-stage multi-pipe jet injector with high efficiency as claimed in claim 9, it is characterized in that described one-level jet pipe, secondary jets pipe and three grades of jet pipes are connected different jet media sources respectively or connect identical jet media source respectively by different pipelines, perhaps connect same jet pipe, described jet pipe connects the jet media source, and the import connection of described suction pipe is sucked medium source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200193576U CN201982382U (en) | 2011-01-21 | 2011-01-21 | Multistage multi-pipe high-efficiency jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200193576U CN201982382U (en) | 2011-01-21 | 2011-01-21 | Multistage multi-pipe high-efficiency jet pump |
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| Publication Number | Publication Date |
|---|---|
| CN201982382U true CN201982382U (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200193576U Expired - Lifetime CN201982382U (en) | 2011-01-21 | 2011-01-21 | Multistage multi-pipe high-efficiency jet pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052355A (en) * | 2011-01-21 | 2011-05-11 | 李树生 | Multi-stage and multi-pipe efficient jet pump |
-
2011
- 2011-01-21 CN CN2011200193576U patent/CN201982382U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052355A (en) * | 2011-01-21 | 2011-05-11 | 李树生 | Multi-stage and multi-pipe efficient jet pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110921 Effective date of abandoning: 20130807 |
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| RGAV | Abandon patent right to avoid regrant |