CN107013504A - Vacuum maintenance multisection type vacuum generator - Google Patents
Vacuum maintenance multisection type vacuum generator Download PDFInfo
- Publication number
- CN107013504A CN107013504A CN201610056957.7A CN201610056957A CN107013504A CN 107013504 A CN107013504 A CN 107013504A CN 201610056957 A CN201610056957 A CN 201610056957A CN 107013504 A CN107013504 A CN 107013504A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- vacuum generator
- input
- nozzle
- control piston
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
- F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/48—Control
- F04F5/52—Control of evacuating pumps
Abstract
A kind of vacuum maintenance multisection type vacuum generator, with output end, pressure input and atmospheric input, wherein the output end is embedded is connected to downtake pipe, the downtake pipe is from top to bottom sequentially provided with a nozzle and a control piston, a spring is provided between the control piston and the nozzle, the control piston start is produced displacement；It is another to have a passage in the vacuum generator, pressure input and atmospheric input can be communicated, to guide pressure with fluid until the output end is discharged, it is central can be by the elastic force of internal pull of vacuum and spring, open and close nozzle and blast pipe, inner vacuum suction is maintained maximum, and the fluid of closing presure input, the purpose of pneumatic supply is saved to reach；The internal structure of multisection type vacuum generator makes still to be maintained max vacuum suction in internal structure, and need not set up atmospheric input, it is only necessary to single atmospheric input, makes structure more simplified by setting up subaisle and non-return valve open in usual.
Description
Technical field
The present invention is main using inside vacuum generator on a kind of vacuum maintenance multisection type vacuum generator
Passage, coordinate pull of vacuum allow the control piston start produce displacement, inside is reached after vacuum action,
Allow pneumatic supply gas to be able to stop lasting input, and maintain maximum vacuum；And occur in multisection type vacuum
Device application, can coordinate and set up non-return valve open in usual and subaisle, simplify overall structure, it is only necessary to which single air is defeated
Enter end, the purpose of the pneumatic supply energy is saved with regard to that can have concurrently.
Background technology
Since so far, vacuum generator applies to keyholed back plate and keeps pull of vacuum in automation equipment field
Adjustment, be for one of spare part particularly important among air compression system.
In the prior art, vacuum generator is set after pressure by pressure input input one, coordinates outside gas
Body leads into inside, through passage set by inside until output end is discharged, and produces in the process default true
Suction power；So far, though to reach the size of predetermined pull of vacuum, pressure input must obtain sustainable supply
Pull of vacuum could be maintained, permanent use all excessively wastes for cost and energy.
If applied to two-period form or more segmentation design vacuum generator when, in addition to aforesaid drawbacks, also need
In increasing the atmospheric input of the quantity corresponding with multistage in the structure, for example：Two-part vacuum generator
Two atmospheric inputs, three-stage, which need to be configured, then to be needed to configure three atmospheric inputs, by that analogy；In order to up to
Into expected vacuum, the vacuum generator overall construction design also more becomes complicated, even more aggravated cost with
The consuming of the energy, and entirety need to coordinate corresponding structure just to be operated, for there is many limits using upper
System.
In view of this, the present invention i.e. provide it is a kind of can be in the vacuum generator of different vacuum level requirements, with letter
Change internal structure with reduce gas energy in maintain vacuum consume, make its still can stablize be used it is true
Empty maintenance multisection type vacuum generator.
The content of the invention
For up to purpose is above taken off, vacuum maintenance multisection type vacuum generator of the present invention can be set using integration
Meter, enables its application to extend, and output end is provided with above the vacuum generator, matches somebody with somebody in the output end
Downtake pipe interlocking is equipped with, and is then embedded nozzle wherein below the downtake pipe, and in the first row
Tracheae lateral margin is provided with venting conduit inlet, and the lateral margin of the vacuum generator is provided with atmospheric input, and this is big
Gas input separately has control piston to coordinate spring top to support the nozzle, and the vacuum generator in communication with the nozzle
Being provided with lower section below pressure input, the nozzle can cooperate provided with nozzle entrance with the pressure input
Form the action for being able to straight-line displacement；And there is a channel inside the vacuum generator, and the channel interlinks
In the downtake pipe, the gas and pressure that can be inputted for the atmospheric input, into until by the output
End discharge.
Using said structure, it can be inputted by pressure and gas, promote the control piston start to produce displacement,
Until closing the nozzle entrance and the venting conduit inlet completely, make the vacuum produced by inside the vacuum generator
Suction is maintained maximum vacuum, reaches structure and simplifies and have concurrently the purpose for saving the pneumatic supply energy.
Brief description of the drawings
Fig. 1 is the vacuum generator of the one-part form of the present invention in the schematic diagram of vacuum generating state.
Fig. 2 is the vacuum generator of the one-part form of the present invention in the close-up schematic view of vacuum generating state.
Fig. 3 is the vacuum generator of the one-part form of the present invention in the circuit diagram of vacuum generating state.
Fig. 4 is the vacuum generator of the one-part form of the present invention in the schematic diagram of vacuum hold mode.
Fig. 5 is the vacuum generator of the one-part form of the present invention in the close-up schematic view of vacuum hold mode.
Fig. 6 is the vacuum generator of the one-part form of the present invention in the circuit diagram of vacuum generating state.
Fig. 7 is the vacuum generator of the two-period form of the present invention in the schematic diagram of vacuum generating state.
Fig. 8 is the vacuum generator of the two-period form of the present invention in the close-up schematic view of vacuum generating state.
Fig. 9 is the vacuum generator of the two-period form of the present invention in the circuit diagram of vacuum generating state.
Figure 10 is the vacuum generator of the two-period form of the present invention in the schematic diagram of vacuum hold mode.
Figure 11 is the vacuum generator of the two-period form of the present invention in the close-up schematic view of vacuum hold mode.
Figure 12 is the vacuum generator of the two-period form of the present invention in the circuit diagram of vacuum hold mode.
In the present embodiment figure：
The venting conduit inlet of 1 vacuum generator 151
The spring of 11 pressure input 16
The passage of 111 pressure 17
The subaisle of 12 atmospheric input 171
The output end of 121 fluid 18
The 13 control second exhaust pipes of piston 19
The non-return valve open in usual of 14 nozzle 191
141 nozzle entrance V pulls of vacuum
15 downtake pipes
Embodiment
Generally according to the present invention, the optimal feasible embodiment, and coordinate after Fig. 1~Figure 12 detailed descriptions,
Increase the understanding to this creation；
The present invention is a kind of vacuum maintenance multisection type vacuum generator, and the top of a vacuum generator 1 is provided with one
Output end 18, top interlocking of the output end (18) with unification downtake pipe (15), and the first exhaust
One nozzle 14 is then embedded in the downtake pipe 15 by the lower section of pipe 15, the lateral margin of this downtake pipe 15
Place is provided with a venting conduit inlet 151；
And at the lateral margin of vacuum generator 1 also be provided with an atmospheric input 12, and with the phase of atmospheric input 12
Nozzle 14 is passed through, separately has a control piston 13 with the unification contact of spring 16 nozzle 14, and in the vacuum
The lower section of generator 1, is additionally provided with a pressure input 11, and the lower section of nozzle 14 then has a nozzle entrance
141, and the nozzle entrance 141 can pass through the pressure input 11 and control piston 13 start generation position
When movement is made, the nozzle entrance 141 is set to constitute open and-shut mode；
One passage 17 is inside the vacuum generator 1, and the passage 17, which is communicated, is connected in the downtake pipe 15,
It is main with the pressure inputted for the defeated fluid 121 of atmospheric input 12 and the pressure input 11
Power 111 enters, until being discharged by output end 18；And when pressure 111 is inputted via pressure input 11
Afterwards, the start of control piston 13 can be promoted to produce displacement, until closing the nozzle entrance 141 completely with being somebody's turn to do
Venting conduit inlet 151, the pull of vacuum V produced by making the inside of vacuum generator 1 is maintained maximum true
Reciprocal of duty cycle.
Refer to again shown in Fig. 1~Fig. 6, can be from control after pressure 111 is inputted via pressure input 11
The center through hole of piston 13 processed flows through, and takes advantage of a situation into nozzle 14 and downtake pipe 15 and produces vacuum suction
Power V, and utilize the input fluid 121 of atmospheric input 12 located at the lateral margin of vacuum generator 1, the stream
Body 121 is usually general air, and the elastic force of pull of vacuum V ＜ springs 16 now can ensure that by vacuum
The soakage of fluid 121 outside generator 1 is maximum, and the above is vacuum generating state；
However, when lasting to when being needed to change into vacuum hold mode, the vacuum inside vacuum generator 1
The elastic force of suction V ＞ springs 16, will enable control piston 13 be picked up by pull of vacuum V, and then close spray
Mouth entrance 141 and first exhaust tube inlet 151, making the fluid 121 of atmospheric input 12 will not be inhaled again
Enter, and allow the inside of vacuum generator 1 to be in vacuum state, thereby turn off defeated by the institute of pressure input 11
The pressure 111 entered, and then reach the purpose for saving the pneumatic supply energy, and the inside of vacuum generator 1 is in most
Big vacuum.
Refer to again as shown in Fig. 7~Figure 12, be another embodiment of the present invention, predominantly two-period form is set
The vacuum generator 1 of meter, generally existing multisection type design can coordinate corresponding number of big according to hop count demand
Gas input 12, but the multistage design of this programme can be by the design of internal structure itself, and significantly subtract
The problem of changing complicated, puies forward explanation only for understanding below, and is limited to the vacuum generation of two-period form incessantly
Device 1 is used, and also can apply to the structure of more multisection type；
The top of vacuum generator 1 of another embodiment of the present invention is provided with output end 18, and in the output end (18)
The top that internal engagement has a second exhaust pipe (19) is mutually rabbeted, and the lower section of second exhaust pipe 19 then links
There is downtake pipe 15, a nozzle 14 is embedded at the downtake pipe 15 by the lower section of downtake pipe 15
Among, and it is provided with a venting conduit inlet 151, and the vacuum generator in the lateral margin of downtake pipe 15
The lateral margin of nozzle 14 inside 1 is provided with an atmospheric input 12, separately has a control piston 13 with unification spring
The 16 contacts nozzle 14, and it is provided with a pressure input 11, the nozzle 14 in the lower section of vacuum generator 1
Lower section be provided with a nozzle entrance 141, and can with the pressure input 11 with control piston 13 mutual cooperation,
Form the action for being able to produce displacement；One passage 17 is located at the inside of the vacuum generator 1, and the passage
17 communicate and are connected in the downtake pipe 15, the fluid 121 that can be inputted for the atmospheric input 12 and
The pressure 111 that the press-in input 11 is inputted, into up to being discharged by the output end 18, separately there is a pair
Passage 171 is located at the inside of the vacuum generator 1, and a check open in usual is additionally provided with the subaisle 171
Valve 191, the subaisle 171, which is communicated, is connected in the second exhaust pipe 19, only defeated for the institute of atmospheric input 12
The fluid 121 entered enters, until being discharged by the output end 18；When pressure 111 is by the pressure input 11
After input, the control piston 13 can be promoted to produce displacement, until closing the nozzle entrance 141 completely with being somebody's turn to do
Venting conduit inlet 151, and the non-return valve 191 open in usual can be blocked by pull of vacuum V displacements this second
Blast pipe 19, make pull of vacuum V produced by the inside of the vacuum generator 1 to keep maximum vacuum,
Thus simplified structure is reached with saving the purpose of the pneumatic supply energy, and to avoid the second exhaust pipe 19 could not
Effective contribution soakage, therefore allow the non-return valve 191 open in usual to be a kind of single formula suction inlet design, make
It is in normally open, allow the vacuum of downtake pipe 15 is always lower than the second exhaust pipe 19, allow whole
The required pneumatic flow of body structure can maintain normal operation standard.
But the area of pressure input 11 of the control piston 13 in said structure need to be more than the nozzle entrance
141 area, can reduce the control piston 13 in the thrust needed for displacement action, and the spring 16 is
Design can be substituted, so as to adjust the vacuum generator 1 inner vacuum suction V size；And this is open in usual
Non-return valve 191 is with the control piston 13 when actual embodiment, it not necessary to simultaneously close off, therefore this is normal
Open type non-return valve 191 need to be closed first, be reduced the soakage of fluid 121 of the second exhaust pipe 19,
The control piston 13 is further allowed to close the soakage of the downtake pipe 15, both would not interfere,
It is able to prevention and closes incomplete situation generation.
In summary, energy-saving type vacuum generator 1 of the invention, channel 17 and pair are set using inside configuration
Passage 171, by it is internal can straight-line displacement control piston 13 make its it is internal can through spring 16 elastic force
Coordinate pull of vacuum V, and in multisection type design, coordinate control outside defeated by non-return valve 191 open in usual
The amount of fluid 121 entered, is simplified its labyrinth, it is only necessary to single atmospheric input 12, can just constitute
Inner vacuum state keeps or released, and reaches the purpose for saving the pneumatic supply energy.
Claims (4)
1. a kind of vacuum maintenance multisection type vacuum generator, it is included：
One vacuum generator, top is provided with an output end, the output end with unification downtake pipe
Top interlocking, and the downtake pipe below then a nozzle is embedded in the downtake pipe,
And a venting conduit inlet is provided with the downtake pipe lateral margin, and the lateral margin of the vacuum generator is provided with
One atmospheric input, and the atmospheric input is in communication with the nozzle, separately there is control piston cooperation
One spring top supports the nozzle, and the vacuum generator is provided with a pressure input, the nozzle in lower section
Lower section be provided with a nozzle entrance, and can with the pressure input and control piston mutual cooperation, shape
Into the action for being able to straight-line displacement；One passage, inside the vacuum generator, the passage is communicated
It is connected in the downtake pipe, the fluid that can be inputted for the atmospheric input and pressure input
The inputted pressure in end, into until being discharged by the output end；
It is characterized in that：After pressure is inputted by the pressure input, the control piston position can be promoted
Move, until closing the nozzle entrance and the venting conduit inlet completely, make institute inside the vacuum generator
The pull of vacuum of generation is maintained maximum vacuum.
2. a kind of vacuum maintenance multisection type vacuum generator, it is included：
One vacuum generator, top is provided with an output end, the output end with unification second exhaust pipe
Top interlocking, be linked with a downtake pipe below the second exhaust pipe, and the downtake pipe
One nozzle is then embedded in the downtake pipe by lower section, and is provided with one in the downtake pipe lateral margin
Venting conduit inlet, and the lateral margin of the vacuum generator is provided with an atmospheric input, and the air is defeated
Enter end in communication with the nozzle, separately there is a control piston to support the nozzle, and the vacuum with unification spring top
Generator is provided with a pressure input in lower section, is provided with a nozzle entrance below the nozzle, and can be with
The mutual cooperation of the pressure input and control piston, forms the action for being able to straight-line displacement；One leads to
Road, inside the vacuum generator, the passage, which is communicated, is connected in the downtake pipe, can be big for this
The pressure that the fluid and the pressure input that gas input is inputted are inputted, into until by
The output end is discharged；One subaisle, is provided with inside the vacuum generator, and in the subaisle
One non-return valve open in usual, the subaisle, which is communicated, is connected in the second exhaust pipe, only for the atmospheric input
The fluid inputted enters, until being discharged by the output end；
It is characterized in that：After pressure is inputted by the pressure input, the control piston position can be promoted
Move, until close the nozzle entrance and the venting conduit inlet completely, and the non-return valve open in usual can be by
Pull of vacuum displacement and block the second exhaust pipe, the vacuum produced by making inside the vacuum generator
Suction is maintained maximum vacuum.
3. vacuum maintenance multisection type vacuum generator as claimed in claim 1 or 2, its feature exists
In：The pressure input area of the control piston is more than the area of the nozzle entrance, can reduce the control
Piston processed thrust needed for displacement action.
4. vacuum maintenance multisection type vacuum generator as claimed in claim 1 or 2, its feature exists
In：The spring is can substitute design, so as to adjust the size of the vacuum generator internal vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056957.7A CN107013504A (en) | 2016-01-27 | 2016-01-27 | Vacuum maintenance multisection type vacuum generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056957.7A CN107013504A (en) | 2016-01-27 | 2016-01-27 | Vacuum maintenance multisection type vacuum generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107013504A true CN107013504A (en) | 2017-08-04 |
Family
ID=59439373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610056957.7A Pending CN107013504A (en) | 2016-01-27 | 2016-01-27 | Vacuum maintenance multisection type vacuum generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107013504A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110540073A (en) * | 2019-08-01 | 2019-12-06 | 珠海市广源信科技有限公司 | Amortization formula vacuum generator adsorption equipment |
| CN111059084A (en) * | 2019-12-09 | 2020-04-24 | 行益科技(宁波)有限公司 | Miniature integrated vacuum generator and generation method and miniature vacuum generation assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4056334A (en) * | 1975-05-12 | 1977-11-01 | Fortune William S | Vacuum system |
| CN101113744A (en) * | 2006-07-28 | 2008-01-30 | 南京理工大学 | Flow quantity self-adjusting jetting stream vacuum generator |
| JP2009299587A (en) * | 2008-06-13 | 2009-12-24 | Keihin Corp | Ejector for fuel cell |
| CN103619629A (en) * | 2011-06-27 | 2014-03-05 | 考特克斯·特克斯罗恩有限公司及两合公司 | Device for pressure-dependent opening of a suction intake |
| CN205503576U (en) * | 2016-01-27 | 2016-08-24 | 上海气立可气动设备有限公司 | Vacuum keeps type multistage formula vacuum generator |
-
2016
- 2016-01-27 CN CN201610056957.7A patent/CN107013504A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4056334A (en) * | 1975-05-12 | 1977-11-01 | Fortune William S | Vacuum system |
| CN101113744A (en) * | 2006-07-28 | 2008-01-30 | 南京理工大学 | Flow quantity self-adjusting jetting stream vacuum generator |
| JP2009299587A (en) * | 2008-06-13 | 2009-12-24 | Keihin Corp | Ejector for fuel cell |
| CN103619629A (en) * | 2011-06-27 | 2014-03-05 | 考特克斯·特克斯罗恩有限公司及两合公司 | Device for pressure-dependent opening of a suction intake |
| CN205503576U (en) * | 2016-01-27 | 2016-08-24 | 上海气立可气动设备有限公司 | Vacuum keeps type multistage formula vacuum generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110540073A (en) * | 2019-08-01 | 2019-12-06 | 珠海市广源信科技有限公司 | Amortization formula vacuum generator adsorption equipment |
| CN111059084A (en) * | 2019-12-09 | 2020-04-24 | 行益科技(宁波)有限公司 | Miniature integrated vacuum generator and generation method and miniature vacuum generation assembly |
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Application publication date: 20170804 |
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