CN106423608A - Ejector with spray nozzle position adjustable and device - Google Patents
Ejector with spray nozzle position adjustable and device Download PDFInfo
- Publication number
- CN106423608A CN106423608A CN201610945572.6A CN201610945572A CN106423608A CN 106423608 A CN106423608 A CN 106423608A CN 201610945572 A CN201610945572 A CN 201610945572A CN 106423608 A CN106423608 A CN 106423608A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- injector
- flow tube
- expansion bend
- adjustable
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/68—Arrangements for adjusting the position of spray heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
Abstract
The invention discloses an ejector with a spray nozzle position adjustable and a device. The ejector with the spray nozzle position adjustable comprises a primary flow tube, a spray nozzle, a receiving chamber, a secondary flow tube, a blending chamber and a diffusion chamber. An expansion device with the length varying along variation of pressure is arranged at the joint of the primary flow tube and the spray nozzle. The primary flow tube, the expansion device, the spray nozzle, the blending chamber and the diffusion chamber are sequentially connected along the axis. The spray nozzle position of the ejector is automatically adjusted simply through variation of the flow rate of primary flow, the performance of the ejector is changed accordingly, and the ejector can have good performance under different working conditions.
Description
Technical field
The invention belongs to injector field, the adjustable injector of more particularly, to a kind of nozzle location and device.
Background technology
Injector is a kind of widely used fluid machinery, and he realizes the conversion of energy using the jet of working fluid.
Injector, so that its structure is simple, cheap and the convenient feature of Operation and maintenance, is widely used in extracting gas, used heat returns
Receive and the fields such as Hybrid Heating.
Injector relies on the mutual collision between fluid transmitting energy, and its internal mixed process is extremely complex, therefore right
Adopting empirical equation in the research of injector more.In recent years, the emulation of injector interior flow of fluid is simulated using CFD software
Experiment is increasingly taken seriously.But because the difficulty of experiment is larger, therefore people understand to the flowing of injector interior fluid
Relatively fewer.
For above-mentioned reasons, so the design of current injector generally is directed to fixing operating mode, once deviateing fixing operating mode,
The stability dramatic decrease of injector；Because the structure of injector is fixing, lead to the scope of its parameter regulation extremely narrow, so
The efficiency of injector can occur significantly to decline, and even result in and cannot be continuing with.For example, in sea water desalinating unit, by
In the change of system loading, need the rate of discharge of change injector by a relatively large margin；In addition, in actual industrial production, outward
When once the parameter such as the pressure of fluid, working medium changes in portion, particularly one time this parameter of flowing pressure occurs by a relatively large margin
Change injector performance will be led to occur significantly to drop, this realizes injector with regard in urgent need to resolve how relative broad range
Adjustable performance, to meet the problem of the demand of various working.
Content of the invention
In order to solve the shortcoming of prior art, the present invention provides a kind of adjustable injector of nozzle location and device, this
Bright can solve the problem that injector efficiency when flowing pressure occurs large change declines serious problem.
The structure of traditional injector involved in the present invention is：
Injector includes flow tube, nozzle, receiving chamber, secondary flow tube, mixing chamber and diffuser casing；Described nozzle connect to
The exit of flow tube, described nozzle passes across receiving chamber and enters mixing chamber；Described diffuser casing connects to the outlet of mixing chamber
Place；Described secondary flow tube is placed in below mixing chamber, is passed through mixing indoor.
For achieving the above object, the present invention employs the following technical solutions：
The invention provides a kind of adjustable injector of nozzle location, described injector includes flow tube, nozzle, a reception
Room, secondary flow tube, mixing chamber and diffuser casing, are provided with length with pressure change at the link position of a flow tube and nozzle
And the expansion bend changing；A described flow tube, expansion bend, nozzle, mixing chamber and diffuser casing are sequentially connected along axis.
, to existing injector, at the link position of a flow tube and nozzle, setting length is with pressure change for the present invention
And the expansion bend changing, so when flowing pressure of injector increases, the elastic force of expansion bend is less than a flowing pressure so that spraying
Mouth moves right and reaches new equilbrium position；When flowing pressure of injector reduces, the elastic force of expansion bend is more than and once flows
Pressure reaches new equilbrium position so that nozzle is moved to the left；The purpose of injector Self Adaptive Control so can be reached, can make
Injector when once flow changes within the specific limits, automatically adjusts the nozzle location of injector, is allowed to constantly be in
The state of best performance；Automatically adjust injector nozzle position eventually through the conversion once flowing size, improve the property of injector
Can, make injector all have good performance under being in different operating modes.
Described expansion bend is bellows.Bellows is to be changed according to overpressure and equipment that length changes,
Its structure is simple, with low cost, and then reduces the cost of injector of the present invention additionally it is possible to ensure that the safety of this injector can
Lean on.
The outside of described expansion bend is also arranged with the spring of the coefficient of elasticity for adjusting described expansion bend.
The present invention by the outer cover in expansion bend with spring, by the coefficient of elasticity of regulation telescopic unit, make expansion bend
Can stretch to suitable position according to once flowing size.
Described mixing chamber includes two mixing sections, respectively equipressure mixing section and homalographic mixing section.
Described nozzle is provided with the nozzle throat of circle.
Described mixing chamber is provided with the mixing chamber outlet of taper.
Described nozzle throat and mixing chamber outlet are in same axis.
Present invention also offers a kind of injection type cooling device, it is adjustable that described injection type cooling device includes nozzle location
Injector.This injection type cooling device can automatically adjust injector nozzle position by the conversion of once stream size, improves spray
The performance of emitter, and then make injection type cooling device all have good performance under being in different operating modes.
Present invention also offers a kind of vacuum manufacture device, described vacuum manufacture device includes the adjustable injection of nozzle location
Device.
This vacuum manufacture device can automatically adjust injector nozzle position by the conversion of once stream size, improves injection
The performance of device, and then make this vacuum manufacture device all have good performance under being in different operating modes.
Present invention also offers a kind of sea water desalinating unit, described sea water desalinating unit includes the adjustable injection of nozzle location
Device.
This sea water desalinating unit can automatically adjust injector nozzle position by the conversion of once stream size, improves injection
The performance of device, and then make this sea water desalinating unit all have good performance under being in different operating modes.
Beneficial effects of the present invention are：
(1), to existing injector, at the link position of a flow tube and nozzle, setting length is with pressure for the present invention
The expansion bend changing and changing, so when flowing pressure of injector increases, the elastic force of expansion bend is less than a flowing pressure, makes
Obtain nozzle and move right and reach new equilbrium position；When flowing pressure of injector reduces, the elastic force of expansion bend is more than once
The pressure of stream reaches new equilbrium position so that nozzle is moved to the left；The purpose of injector Self Adaptive Control so can be reached,
When can make injector once flow changing within the specific limits, automatically adjust the nozzle location of injector, be allowed to the moment
It is in the state of best performance；
(2) injector of the present invention is safe and reliable, and structure is simple, with low cost, can be by once flowing the conversion of size
Automatically adjust injector nozzle position, improve the performance of injector, so that injector is all had under being in different operating modes well
Performance.
Brief description
Fig. 1 is conventional injector structure chart；
Fig. 2 is the nozzle location adjustable emitter construction schematic diagram of the present invention.
Wherein, a 1. flow tube, 2. receiving chamber, 3. nozzle, 4. nozzle throat, 5. isobaric mixing section, 6. two flow tubes, 7.
Homalographic mixing section, 8. diffuser casing, 9. expansion bend.
Specific embodiment
The present invention will be further described with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is conventional injector structure chart.The structure of conventional injector as shown in Figure 1 is：
Injector includes flow tube 1, nozzle 3, receiving chamber 2, secondary flow tube 6, mixing chamber and diffuser casing 8；Wherein, mix
Room includes two mixing sections, respectively equipressure mixing section 5 and homalographic mixing section 7.
Nozzle 3 connects to the exit of a flow tube 1, and described nozzle 3 passes across receiving chamber 2 and enters mixing chamber；Described expansion
Scattered room 8 connects to the exit of mixing chamber；Described secondary flow tube 6 is placed in below mixing chamber, is passed through mixing indoor.
Injector operation principle：
Once stream steam (i.e. power steam) entrance nozzle 3 carries out adiabatic expansion, forms supersonic speed in the exit of nozzle 3
Fluid；When supersonic flow flows through receiving chamber 2, because the low pressure that high speed is formed will drive injector, a secondary fluid is along injection
Device axially-movable, in mixing indoor two fluids phase mixing, and the fluid-mixing being formed drops to below velocity of sound, in diffuser casing 8
Interior, the speed of fluid-mixing reduces further, and pressure rise reaches exclusion fluid desired parameters.
Fig. 2 is the nozzle location adjustable emitter construction schematic diagram of the present invention.As shown in Fig. 2 the one of present invention offer
Plant the adjustable injector of nozzle location, described injector includes flow tube 1, nozzle 3, receiving chamber 2, secondary flow tube 6, a mixing chamber
With diffuser casing 8, at the link position of a flow tube 1 and nozzle 3, it is provided with the expansion bend with change in pressure for the length
9；A described flow tube 1, expansion bend 9, nozzle 3, mixing chamber and diffuser casing 8 are sequentially connected along axis.
, to existing injector, at the link position of a flow tube and nozzle, setting length is with pressure change for the present invention
And the expansion bend changing, so when flowing pressure of injector increases, the elastic force of expansion bend is less than a flowing pressure so that spraying
Mouth moves right and reaches new equilbrium position；When flowing pressure of injector reduces, the elastic force of expansion bend is more than and once flows
Pressure reaches new equilbrium position so that nozzle is moved to the left；The purpose of injector Self Adaptive Control so can be reached, can make
Injector when once flow changes within the specific limits, automatically adjusts the nozzle location of injector, is allowed to constantly be in
The state of best performance；Automatically adjust injector nozzle position eventually through the conversion once flowing size, improve the property of injector
Can, make injector all have good performance under being in different operating modes.
In being embodied as, expansion bend 9 can select bellows.
Bellows is to be changed according to overpressure and equipment that length changes, and its structure is simple, with low cost,
And then reduce the cost of injector of the present invention additionally it is possible to ensure the safe and reliable of this injector.
Expansion bend 9, in addition to from bellows, can also be changed with overpressure and be changed from length
Equipment.
In order to tackle different injectors, the different Changing Patterns of its nozzle location and a flowing pressure size, so
Expansion bend 9 may be selected overcoat with the spring of different coefficient of elasticity, changes the coefficient of elasticity of bellows, to adapt to the spray of different structure
Emitter.
The present invention is using the bullet of the coefficient of elasticity being arranged with by the outside in expansion bend 9 for adjusting described expansion bend
Spring, by the coefficient of elasticity of regulation telescopic unit, makes expansion bend can stretch to suitable position according to once flowing size.
When flowing pressure of injector increases, the elastic force of expansion bend is less than a flowing pressure so that nozzle moves right
Reach new equilbrium position, the nozzle location of injector increases；
When flowing pressure of injector reduces, the elastic force of expansion bend is more than the pressure once flowing so that nozzle is to moving to left
Move and reach new equilbrium position, injector nozzle position reduces.
Suitable coefficient of elasticity is set to expansion bend 9 it is possible to so that no matter a flowing pressure occurs which kind of change, injection
The nozzle of device can be in an optimum position；According to the initial position of nozzle, a flowing pressure and its corresponding optimum spray
Mouth position determines coefficient of elasticity.I.e. the NXP of injector remains the optimal value corresponding to this flowing pressure, so that spray
The mass ratio of induced-to-inducing air of emitter keeps a higher value.
Mixing chamber in the present invention includes two mixing sections, respectively equipressure mixing section 5 and homalographic mixing section 7.
Wherein, nozzle 3 is provided with the nozzle throat 4 of circle.Mixing chamber is provided with the mixing chamber outlet of taper.Nozzle throat
4 are in same axis with mixing chamber outlet.
A kind of injection type cooling device of the present invention, described injection type cooling device includes nozzle location as shown in Figure 2
Adjustable injector.
In the structure of this injection type cooling device, except injector adopts version as shown in Figure 2, other structures are equal
For existing structure, will be not repeated herein.This injection type cooling device that the present invention provides can be by once flowing the change of size
Change and automatically adjust injector nozzle position, improve the performance of injector, so make injection type cooling device be in different
All there is under operating mode good performance.
A kind of vacuum manufacture device of the present invention, it is adjustable that described vacuum manufacture device includes nozzle location as shown in Figure 2
Injector.
In the structure of this vacuum manufacture device, except injector adopts version as shown in Figure 2, other structures are
Existing structure, will be not repeated herein.This vacuum manufacture device that the present invention provides can by the conversion of once stream size certainly
Dynamic regulation injector nozzle position, improves the performance of injector, and then makes injection type cooling device be in different operating modes
Under all there is good performance.
A kind of sea water desalinating unit of the present invention, it is adjustable that described sea water desalinating unit includes nozzle location as shown in Figure 2
Injector.
In the structure of this sea water desalinating unit, except injector adopts version as shown in Figure 2, other structures are
Existing structure, will be not repeated herein.This sea water desalinating unit that the present invention provides can by the conversion of once stream size certainly
Dynamic regulation injector nozzle position, improves the performance of injector, and then makes injection type cooling device be in different operating modes
Under all there is good performance.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not model is protected to the present invention
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay the various modifications that creative work can make or deformation still within protection scope of the present invention.
Claims (10)
1. the adjustable injector of a kind of nozzle location, described injector includes flow tube, nozzle, receiving chamber, secondary flow tube, mixed
Close room and diffuser casing it is characterised in that being provided with length with pressure change at the link position of a flow tube and nozzle
The expansion bend of change；A described flow tube, expansion bend, nozzle, mixing chamber and diffuser casing are sequentially connected along axis.
2. as claimed in claim 1 a kind of adjustable injector of nozzle location it is characterised in that described expansion bend be ripple
Pipe.
3. as claimed in claim 1 a kind of adjustable injector of nozzle location it is characterised in that the outside of described expansion bend also
It is arranged with the spring of the coefficient of elasticity for adjusting described expansion bend.
4. as claimed in claim 1 a kind of adjustable injector of nozzle location it is characterised in that described mixing chamber includes two
Mixing section, respectively isobaric mixing section and homalographic mixing section.
5. as claimed in claim 1 a kind of adjustable injector of nozzle location it is characterised in that described nozzle is provided with circle
Nozzle throat.
6. as claimed in claim 5 a kind of adjustable injector of nozzle location it is characterised in that described mixing chamber is provided with cone
The mixing chamber outlet of shape.
7. as claimed in claim 6 a kind of adjustable injector of nozzle location it is characterised in that described nozzle throat with mix
Room outlet is in same axis.
8. a kind of injection type cooling device it is characterised in that described injection type cooling device to include claim 1-7 arbitrary described
The adjustable injector of nozzle location.
9. a kind of vacuum manufacture device is it is characterised in that described vacuum manufacture device includes the nozzle position described in claim 1-7
Put adjustable injector.
10. a kind of sea water desalinating unit is it is characterised in that described sea water desalinating unit includes the nozzle described in claim 1-7
The adjustable injector in position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610945572.6A CN106423608A (en) | 2016-10-26 | 2016-10-26 | Ejector with spray nozzle position adjustable and device |
| PCT/CN2017/106069 WO2018077045A1 (en) | 2016-10-26 | 2017-10-13 | Injector having adjustable nozzle position and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610945572.6A CN106423608A (en) | 2016-10-26 | 2016-10-26 | Ejector with spray nozzle position adjustable and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106423608A true CN106423608A (en) | 2017-02-22 |
Family
ID=58178482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610945572.6A Pending CN106423608A (en) | 2016-10-26 | 2016-10-26 | Ejector with spray nozzle position adjustable and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106423608A (en) |
| WO (1) | WO2018077045A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861961A (en) * | 2017-03-10 | 2017-06-20 | 山东大学 | A kind of self-adjustable injector |
| WO2018077045A1 (en) * | 2016-10-26 | 2018-05-03 | 山东大学 | Injector having adjustable nozzle position and device |
| CN109133236A (en) * | 2018-07-26 | 2019-01-04 | 东莞理工学院 | A kind of desalination plant and application method of industrial exhaust heat driving spray type refrigerating |
| JP6460300B1 (en) * | 2017-12-04 | 2019-01-30 | 新日鐵住金株式会社 | Surface following nozzle, moving object surface observation apparatus, and moving object surface observation method |
| CN109453448A (en) * | 2018-10-25 | 2019-03-12 | 谢樑 | A kind of Medical oral nursing assistor |
| WO2019111448A1 (en) * | 2017-12-04 | 2019-06-13 | 日本製鉄株式会社 | Surface following nozzle, observation device for moving object surface, and observation method for moving object surface |
| CN110841821A (en) * | 2019-10-12 | 2020-02-28 | 内蒙古科技大学 | Sprayer with nozzle outlet position capable of being automatically adjusted |
| CN111410254A (en) * | 2020-05-20 | 2020-07-14 | 山东建筑大学 | Injection pump, thermal power plant low-temperature waste heat seawater desalination system and seawater desalination method |
| CN112058525A (en) * | 2020-08-31 | 2020-12-11 | 山东大学 | Nozzle with built-in rifling, ejector and fuel cell hydrogen circulation system |
| CN113231212A (en) * | 2021-05-14 | 2021-08-10 | 内蒙古博大实地化学有限公司 | Atomizing spray head applied to urea product containing inhibitor and anticaking agent |
| CN115846074A (en) * | 2022-10-27 | 2023-03-28 | 山东大学 | Adjustable injection device and method |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018077045A1 (en) * | 2016-10-26 | 2018-05-03 | 山东大学 | Injector having adjustable nozzle position and device |
| WO2018161567A1 (en) * | 2017-03-10 | 2018-09-13 | 山东大学 | Automatically adjustable injector |
| CN106861961B (en) * | 2017-03-10 | 2019-01-18 | 山东大学 | A kind of self-adjustable injector |
| CN106861961A (en) * | 2017-03-10 | 2017-06-20 | 山东大学 | A kind of self-adjustable injector |
| CN111372688A (en) * | 2017-12-04 | 2020-07-03 | 日本制铁株式会社 | Surface following nozzle, observation device for surface of moving object, and observation method for surface of moving object |
| JP6460300B1 (en) * | 2017-12-04 | 2019-01-30 | 新日鐵住金株式会社 | Surface following nozzle, moving object surface observation apparatus, and moving object surface observation method |
| US11578970B2 (en) | 2017-12-04 | 2023-02-14 | Nippon Steel Corporation | Surface following nozzle, observation device for moving object surface, and observation method for moving object surface |
| WO2019111448A1 (en) * | 2017-12-04 | 2019-06-13 | 日本製鉄株式会社 | Surface following nozzle, observation device for moving object surface, and observation method for moving object surface |
| CN109133236A (en) * | 2018-07-26 | 2019-01-04 | 东莞理工学院 | A kind of desalination plant and application method of industrial exhaust heat driving spray type refrigerating |
| CN109453448B (en) * | 2018-10-25 | 2021-04-27 | 鹤壁市人民医院 | Medical oral nursing assistor |
| CN109453448A (en) * | 2018-10-25 | 2019-03-12 | 谢樑 | A kind of Medical oral nursing assistor |
| CN110841821A (en) * | 2019-10-12 | 2020-02-28 | 内蒙古科技大学 | Sprayer with nozzle outlet position capable of being automatically adjusted |
| CN111410254A (en) * | 2020-05-20 | 2020-07-14 | 山东建筑大学 | Injection pump, thermal power plant low-temperature waste heat seawater desalination system and seawater desalination method |
| CN112058525A (en) * | 2020-08-31 | 2020-12-11 | 山东大学 | Nozzle with built-in rifling, ejector and fuel cell hydrogen circulation system |
| CN113231212A (en) * | 2021-05-14 | 2021-08-10 | 内蒙古博大实地化学有限公司 | Atomizing spray head applied to urea product containing inhibitor and anticaking agent |
| CN115846074A (en) * | 2022-10-27 | 2023-03-28 | 山东大学 | Adjustable injection device and method |
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| WO2018077045A1 (en) | 2018-05-03 |
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Application publication date: 20170222 |