CN107806451A - A kind of compact jet gas extraction device for ship - Google Patents
A kind of compact jet gas extraction device for ship Download PDFInfo
- Publication number
- CN107806451A CN107806451A CN201711104169.1A CN201711104169A CN107806451A CN 107806451 A CN107806451 A CN 107806451A CN 201711104169 A CN201711104169 A CN 201711104169A CN 107806451 A CN107806451 A CN 107806451A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- gas extraction
- jet gas
- condenser
- ship
- 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
-
- 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
- F04F5/461—Adjustable nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a kind of compact jet gas extraction device for ship, it is related to gas ejector technical field.Jet gas extraction includes condenser and jet gas extraction component, jet gas extraction component includes steam drainage base, nozzle carrier, receiving chamber and the diffuser for being interconnected and being sequentially connected with, the steam drainage tube of arc is provided with steam drainage base, nozzle is provided with nozzle carrier；The output end of steam drainage tube connects with the input of nozzle, the output end of nozzle is located in diffuser after passing through receiving chamber, gap is left between the outer wall and diffuser inwall of nozzle, the output end of diffuser is located inside the input of connecting tube, and the input of connecting tube is connected with receiving chamber；Receiving chamber is connected with condenser, and air inlet pipe of the receiving chamber also with 1 arc connects.Noise caused by the volume of the present invention and work is smaller, can meet the installation requirement and noise requirements of ship, suitable for promoting.
Description
Technical field
The present invention relates to gas ejector technical field, and in particular to a kind of compact jet gas extraction device for ship.
Background technology
Jet gas extraction device is to utilize jet turbulent diffusion, and the fluid machinery and hybrid reaction for carrying out mass transfer biography energy are set
It is standby.High pressure draught sprays through steam drainage tube from nozzle at high speeds, and the low-pressure gas around driving nozzle, two strands of air-flows are in receiving chamber
With mixing, supercharging in diffuser, under conditions of certain high-pressure working gas are consumed, improve from air inlet pipe and enter receiving chamber
Low-pressure gas pressure, its systematic comparison is simple, dependable performance, is especially applied in some special producing techniques, such as vacuum
Distillation, vacuum drying, vacuum deodorization etc., it is extensive using future.
But existing jet gas extraction device is dfficult to apply on ship, the reason for this is that：
(1) space on ship is limited, and the space that each part of existing jet gas extraction device takes is larger, and then makes
The volume for obtaining jet gas extraction device is larger, it is difficult to is positioned on ship.
(2) when being worked on ship to the restricted requirement of noise, and existing jet gas extraction device majority does not consider acoustics stream
Field optimization, gas is larger in the friction of air ejector internal structure, pipeline, and then vibrates and produce larger noise.
At the same time, the nozzle of existing jet gas extraction device and the distance of diffuser can not be adjusted, underaction.
The content of the invention
For defect present in prior art, present invention solves the technical problem that being：There is provided a kind of suitable for ship
Compact jet gas extraction device, noise caused by volume of the invention and work is smaller, can meet the installation requirement of ship
And noise requirements, suitable for promoting.
To achieve the above objectives, provided by the present invention for the compact jet gas extraction device of ship, including condenser, condensation
Jet gas extraction component is provided with device, it is characterised in that：The output end of jet gas extraction component by the connecting tube of 1 arc with it is cold
The input connection of condenser；Jet gas extraction component include be interconnected and be sequentially connected with steam drainage base, nozzle carrier,
Receiving chamber and diffuser, be provided with the steam drainage tube of arc on steam drainage base, be provided with nozzle on nozzle carrier, nozzle with
The distance between nozzle carrier is adjustable；The output end of steam drainage tube connects with the input of nozzle, and the output end of nozzle passes through
After receiving chamber in diffuser, gap is left between the outer wall and diffuser inwall of nozzle, the output end of diffuser is positioned at company
Inside the input of adapter, the input of connecting tube is connected with receiving chamber；Receiving chamber is connected with condenser, receiving chamber also with 1
The air inlet pipe connection of arc.
On the basis of above-mentioned technical proposal, the nozzle and the adjustable corresponding specific connection of the distance between nozzle carrier
Mode is：Nozzle is connected through a screw thread with nozzle carrier.
On the basis of above-mentioned technical proposal, locking device is provided between the nozzle and nozzle carrier, locking device is worn
After crossing the side wall of nozzle carrier, supported with the outer wall of nozzle.
On the basis of above-mentioned technical proposal, the condenser includes condenser shell, and the inside of condenser shell passes through
Bolt connection has tube sheet, and condenser shell is divided into bobbin carriage and condensation chamber by tube sheet, and bobbin carriage is interior to be divided into cooling water by 1 piece of dividing plate
Snout cavity and coolant outlet chamber；Some U-shaped heat exchanger tubes are provided with condensation chamber, the input of all U-shaped heat exchanger tubes both passes through
It is located at cooling water inlet intracavitary after tube sheet, the output ends of all U-shaped heat exchanger tubes is located at coolant outlet intracavitary after both passing through tube sheet,
All U-shaped heat exchanger tubes are fixed with tube sheet.
On the basis of above-mentioned technical proposal, some deflection plates, every U have also been bolted inside the condenser
Shape heat exchanger tube both passes through all deflection plates.
On the basis of above-mentioned technical proposal, condenser shell bottom part corresponding with condensation chamber be provided with it is hydrophobic go out
Mouthful, part corresponding with condensation chamber is provided with exhaust outlet at the top of condenser shell.
On the basis of above-mentioned technical proposal, screen pack is provided with the output end of the steam drainage tube.
On the basis of above-mentioned technical proposal,：The nozzle uses Laval nozzle.
On the basis of above-mentioned technical proposal, steam drainage base, nozzle carrier and the receiving chamber are bolted.
Compared with prior art, the advantage of the invention is that：
(1) each part in jet gas extraction component of the invention for sequentially connectivity structure (steam drain base, nozzle carrier,
Receiving chamber sequentially connects with diffuser), compared with the larger jet gas extraction device in space that each part takes in the prior art, this
The structure of invention is compact, and then significantly reduces the volume of whole jet gas extraction device, to meet the installation requirement of ship.
At the same time, the pipeline (connecting tube, air inlet pipe and U-shaped heat exchanger tube) connected between each part of the invention is arc
Shape, compared with structural shape of the prior art, the invention enables gas by when, it is smaller with the friction of pipeline, so produce
Noise it is also smaller, the noise requirements of ship can be met.
(2) it is connected through a screw thread between nozzle and nozzle carrier of the invention, and then causes distance of the nozzle on nozzle carrier
Adjustable, by adjusting the position of nozzle, it up to the scope of vacuum parameters is -0.085MPa~0MPa to enable to air ejector,
Compare flexibly.
(3) critical piece of the invention (steam drainage base, nozzle carrier, receiving chamber, tube sheet and deflection plate) passes through bolt
Fixed, critical piece is detachable and is individually replaced and is adjusted, ingenious, reasonably make use of solid space in receiving chamber,
Both assurance function integrality, operation maintenance is facilitated again.
Brief description of the drawings
Fig. 1 is the compact jet gas extraction device structural representation for ship in the embodiment of the present invention；
Fig. 2 is the lateral partial structurtes sectional view of the compact jet gas extraction device for ship in the embodiment of the present invention.
In figure：1- condensers, 1a- exhaust outlets, the hydrophobic outlets of 1b-, 1c- condenser shells, 1d- bobbin carriages, 1e- tube sheets, 1f-
Dividing plate, 1g-U shape heat exchanger tubes, 1h- deflection plates；
2- jet gas extraction components, 2a- receiving chamber, 2b- nozzle carriers, 2c- steam drainage tubes, 2d- steam drainage base, 2e-
Air inlet pipe, 2f- diffusers, 2g- nozzles, 2h- locking devices, 2i- screen packs；
3- connecting tubes.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
It is shown in Figure 1, the compact jet gas extraction device for ship in the embodiment of the present invention, including condenser 1, it is cold
Jet gas extraction component 2 is provided with condenser 1, the output end of jet gas extraction component 2 passes through the connecting tube 3 and condenser 1 of 1 arc
Input connection.
Referring to shown in Fig. 1 and Fig. 2, jet gas extraction component 2 includes the steam drainage base for being interconnected and being sequentially connected with
2d, nozzle carrier 2b, receiving chamber 2a and diffuser 2f, receiving chamber 2a are hollow structure, and arc is provided with steam drainage base 2d
Steam drainage tube 2c, nozzle carrier 2b on to be provided with the distance between nozzle 2g, nozzle 2g and nozzle carrier 2b adjustable.Steam draws
Flow tube 2c output end connects with nozzle 2g input, and nozzle 2g output end is located at diffuser 2f after passing through receiving chamber 2a
It is interior, leave gap between nozzle 2g outer wall and diffuser 2f inwalls；Diffuser 2f output end is located at the input of connecting tube 3
Inside, the input of connecting tube 3 are connected with receiving chamber 2a.Shown in Figure 1, receiving chamber 2a is connected with condenser 1, receiving chamber 2a
Air inlet pipe 2e also with 1 arc is connected.
Nozzle 2g in the present embodiment uses Laval nozzle, and nozzle 2g is adjustable corresponding with the distance between nozzle carrier 2b
Specific connected mode be：Nozzle 2g is connected through a screw thread with nozzle carrier 2b, in order to prevent nozzle 2g from occurring in use
Improper displacement, is provided with locking device 2h between nozzle 2g and nozzle carrier 2b, locking device 2h passes through nozzle carrier 2b side wall
Afterwards, the outer wall with nozzle 2g supports.For the ease of the dismounting and maintenance of jet gas extraction component 2, steam drainage base 2d, nozzle carrier
2b and receiving chamber 2a are bolted.Screen pack 2i is provided with steam drainage tube 2c output end, it is used to filter steam
Middle impurity particle, prevent plug nozzle 2g.
Shown in Figure 2, condenser 1 includes condenser shell 1c, and condenser shell 1c inside has been bolted
Condenser shell 1c is divided into bobbin carriage 1d and condensation chamber by tube sheet 1e, tube sheet 1e.Divided in bobbin carriage 1d by 1 piece of dividing plate 1f for cooling
Water inlet chamber and coolant outlet chamber, some U-shaped heat exchanger tube 1g are provided with condensation chamber；All U-shaped heat exchanger tube 1g input
Both pass through and be located at cooling water inlet intracavitary after tube sheet 1e, all U-shaped heat exchanger tube 1g output end is both passed through after tube sheet 1e positioned at cold
But water out intracavitary, all U-shaped heat exchanger tube 1g are fixed (fixed form is welding) with tube sheet 1e.
It is shown in Figure 2, some deflection plate 1h are also bolted inside condenser 1, every U-shaped heat exchanger tube 1g is equal
Through all deflection plate 1h.Shown in Figure 1, the housing bottom of condenser 1 part corresponding with condensation chamber is provided with hydrophobic outlet 1b, cold
Part corresponding with condensation chamber is provided with exhaust outlet 1a at the top of condenser housing 1c.
Referring to shown in Fig. 1 and Fig. 2, working method of the invention is：
Working steam in steam drainage tube 2c enters nozzle 2g after screen pack 2i filterings, and nozzle 2g is by after filtering
Steam at high is ejected to diffuser 2f, and at the same time, the low-pressure gas in air inlet pipe 2e also passes through receiving chamber 2a (holding vacuum)
Input to diffuser 2f.After working steam and low-pressure gas mix in diffuser 2f and be pressurized acceleration, entered by connecting tube 3
Enter to condensation chamber, after the U-shaped heat exchanger tube 1g coolings of condensation chamber, the non-condensing gas for liquid is arranged by exhaust outlet 1a
Go out, discharged hydrophobic caused by U-shaped heat exchanger tube 1g coolings by water transport port.
The present invention design principle and experiment process be：Calculating analysis is carried out by jet gas extraction device all parts structure,
Design compact-sized, the rational jet gas extraction device Technology design drawing of scheme；According to Technology design result, relevant mode is built
Type, numerical simulation calculation is carried out to injector interior flow field, service behaviour using computational fluid dynamics softwares such as Fluent, entered
One step determines the reasonability of Technology design result；According to Technology design result, it is determined that the dosage of working steam, carry out condenser
Heat exchange property calculate analysis, it is determined that rational heat exchanger heat exchange area and structure type.
On the basis of the above, the model machine production of compact jet gas extraction device has been carried out, and has carried out correlation test, has been demonstrated
The reasonability of technical scheme and the job stability of jet gas extraction device.
Further, the present invention is not limited to the above-described embodiments, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the present invention
Protection domain within.The content not being described in detail in this specification belongs to existing skill known to professional and technical personnel in the field
Art.
Claims (9)
- A kind of 1. compact jet gas extraction device for ship, it is characterised in that：The jet gas extraction device includes condenser (1), cold Jet gas extraction component (2) is provided with condenser (1), it is characterised in that：The output end of jet gas extraction component (2) passes through 1 arc Connecting tube (3) connected with the input of condenser (1)；Jet gas extraction component (2) includes what is be interconnected and be sequentially connected with Steam drainage base (2d), nozzle carrier (2b), receiving chamber (2a) and diffuser (2f), steam drain and are provided with arc on base (2d) The steam drainage tube (2c) of shape, nozzle (2g), the distance between nozzle (2g) and nozzle carrier (2b) are provided with nozzle carrier (2b) It is adjustable；The output end of steam drainage tube (2c) is connected with the input of nozzle (2g), and the output end of nozzle (2g), which passes through, to be received In diffuser (2f), gap, diffuser are left between the outer wall and diffuser (2f) inwall of nozzle (2g) afterwards in room (2a) The output end of (2f) is located inside the input of connecting tube (3), and the input of connecting tube (3) is connected with receiving chamber (2a)；Receive Room (2a) is connected with condenser (1), and receiving chamber (2a) also connects with the air inlet pipe (2e) of 1 arc.
- 2. it is used for the compact jet gas extraction device of ship as claimed in claim 1, it is characterised in that：The nozzle (2g) and spray Specific connected mode is corresponding to the distance between mouth seat (2b) is adjustable：Nozzle (2g) is connected with nozzle carrier (2b) by screw thread Connect.
- 3. it is used for the compact jet gas extraction device of ship as claimed in claim 2, it is characterised in that：The nozzle (2g) and spray Locking device (2h) is provided between mouth seat (2b), after locking device (2h) passes through the side wall of nozzle carrier (2b), with nozzle (2g) Outer wall support.
- 4. it is used for the compact jet gas extraction device of ship as claimed in claim 1, it is characterised in that：Condenser (1) bag Include condenser shell (1c), the inside of condenser shell (1c) has been bolted tube sheet (1e), and tube sheet (1e) is by condenser Housing (1c) is divided into bobbin carriage (1d) and condensation chamber, is divided into cooling water inlet chamber and cold by 1 piece of dividing plate (1f) in bobbin carriage (1d) But water out chamber；Some U-shaped heat exchanger tubes (1g) are provided with condensation chamber, the input of all U-shaped heat exchanger tubes (1g) both passes through pipe Plate (1e) is located at cooling water inlet intracavitary afterwards, and the output end of all U-shaped heat exchanger tubes (1g) both passes through tube sheet (1e) afterwards positioned at cooling Water out intracavitary, all U-shaped heat exchanger tubes (1g) are fixed with tube sheet (1e).
- 5. it is used for the compact jet gas extraction device of ship as claimed in claim 4, it is characterised in that：In the condenser (1) Portion has also been bolted some deflection plates (1h), and every U-shaped heat exchanger tube (1g) both passes through all deflection plates (1h).
- 6. it is used for the compact jet gas extraction device of ship as claimed in claim 4, it is characterised in that：Condenser (1) shell Body bottom part corresponding with condensation chamber is provided with hydrophobic outlet (1b), and part corresponding with condensation chamber is set at the top of condenser shell (1c) There is exhaust outlet (1a).
- 7. the compact jet gas extraction device for ship as described in any one of claim 1 to 6, it is characterised in that：The steaming Screen pack (2i) is provided with the output end of vapour drainage tube (2c).
- 8. the compact jet gas extraction device for ship as described in any one of claim 1 to 6, it is characterised in that：The spray Mouth (2g) uses Laval nozzle.
- 9. the compact jet gas extraction device for ship as described in any one of claim 1 to 6, it is characterised in that：The steaming Vapour drainage base (2d), nozzle carrier (2b) and receiving chamber (2a) are bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711104169.1A CN107806451A (en) | 2017-11-10 | 2017-11-10 | A kind of compact jet gas extraction device for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711104169.1A CN107806451A (en) | 2017-11-10 | 2017-11-10 | A kind of compact jet gas extraction device for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107806451A true CN107806451A (en) | 2018-03-16 |
Family
ID=61583058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711104169.1A Pending CN107806451A (en) | 2017-11-10 | 2017-11-10 | A kind of compact jet gas extraction device for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107806451A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019220456A1 (en) * | 2018-05-17 | 2019-11-21 | Parmar Ukalal Devjibhai | Submersible water lifting assembly and automatic fire fighting system for unmanned platforms having said system |
| CN111779716A (en) * | 2020-06-19 | 2020-10-16 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Multi-stage ejector for steam turbine |
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| CN201198849Y (en) * | 2008-05-27 | 2009-02-25 | 杭州华达喷射真空设备有限公司 | Energy-saving type water vapor injection vacuum pumping system |
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| US20120315559A1 (en) * | 2011-06-09 | 2012-12-13 | Hyundai Motor Company | Apparatus for controlling hydrogen supply of fuel cell system and method for controlling the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201041171Y (en) * | 2006-12-22 | 2008-03-26 | 王永康 | Water-jet pump |
| CN201020350Y (en) * | 2007-04-12 | 2008-02-13 | 大庆摩恩达工程有限公司 | Adjustable ejector |
| CN201198849Y (en) * | 2008-05-27 | 2009-02-25 | 杭州华达喷射真空设备有限公司 | Energy-saving type water vapor injection vacuum pumping system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019220456A1 (en) * | 2018-05-17 | 2019-11-21 | Parmar Ukalal Devjibhai | Submersible water lifting assembly and automatic fire fighting system for unmanned platforms having said system |
| GB2589252A (en) * | 2018-05-17 | 2021-05-26 | Devjibhai Parmar Ukalal | Submersible water lifting assembly and automatic fire fighting system for unmanned platforms having said system |
| GB2589252B (en) * | 2018-05-17 | 2022-09-07 | Devjibhai Parmar Ukalal | Submersible water lifting assembly and automatic fire fighting system for unmanned platforms having said system |
| US11708842B2 (en) | 2018-05-17 | 2023-07-25 | Ukalal Devjibhai Parmar | Submersible water lifting assembly and automatic fire fighting system for unmanned platforms having said system |
| CN111779716A (en) * | 2020-06-19 | 2020-10-16 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Multi-stage ejector for steam turbine |
| CN111779716B (en) * | 2020-06-19 | 2022-04-19 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Multi-stage ejector for steam turbine |
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Application publication date: 20180316 |