CN105179328B - A kind of Dynamic Self-Adjusting steam jet pump - Google Patents
A kind of Dynamic Self-Adjusting steam jet pump Download PDFInfo
- Publication number
- CN105179328B CN105179328B CN201510477583.1A CN201510477583A CN105179328B CN 105179328 B CN105179328 B CN 105179328B CN 201510477583 A CN201510477583 A CN 201510477583A CN 105179328 B CN105179328 B CN 105179328B
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- jet pump
- steam
- locular wall
- suction chamber
- fixed plate
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Abstract
The invention discloses a kind of Dynamic Self-Adjusting steam jet pump, including jet pump diffusion room 1, the diffuser 14 of jet pump diffusion room 1 is provided with mixed vapour outlet 4, the mixing section 13 of jet pump diffusion room 1 is connected with suction chamber 11, the upper locular wall of suction chamber 11, lower locular wall, jetting steam caused inlet tube 3 is provided with preceding locular wall or rear locular wall, working steam is provided through on the left locular wall of suction chamber 11 into pipe 2, enter the one end of pipe 2 inside suction chamber 11 in working steam and be connected with nozzle 5, porous fixed plate 8 is fixedly installed in the nozzle trunnion 10 of nozzle 5, porous fixed plate includes centre bore and outer perimeter holes, piston rod 12 passes through one end after spring 7 to be fixedly connected with regulating piston 6, the other end is flexibly connected after passing through the centre bore of porous fixed plate 8 with pin 9.The pump of the present invention can realize the stable operation of working steam steam jet pump under surging condition, be effectively guaranteed stable operation ability of the jet pump under variable working condition.
Description
Technical field
The present invention relates to a kind of steam jet pump, more particularly to a kind of Dynamic Self-Adjusting steam jet pump.
Technical background
Low-temperature multi-effect seawater desalination device is inputted with a certain amount of steam, is evaporated and is condensed by many second part, realize compared with
High steam utilization efficiency.What steam jet pump can be obtained to a certain effect evaporator evaporation in low-temperature multi-effect seawater desalination device
Low Temperature Steam is compressed, and is improved after its temperature, is re-entered system, realizes recycling for low-grade steam, lifting system
Water generation ratio, the water generation ratio for being configured with the low-temperature multi-effect seawater desalination device of steam jet pump will be apparently higher than not supporting steam
The device of jet pump.Steam jet pump has become one of critical component of low-temperature multi-effect seawater desalination device.
The steam jet pump of fixed structure can only can be only achieved normal operating efficiency under design conditions, steam pressure,
The work effect of the regulation excursion very little of flow, it is necessary to the ability normal work in certain scope, otherwise steam jet pump
Rate will be reduced greatly, or even can not be worked.Therefore, steam jet pump according to actual condition to nozzle location, nozzle cross-section
Product is adjusted, it appears very necessary.Such as Chinese patent CN201827162U, CN203670313U proposes nozzle location can
The steam jet pump of tune, according to the change of the pressure of working steam, temperature, flow etc., adjusts nozzle location manually, to ensure spray
Penetrate pump to work in Best Point, realize stable operation of the system under variable working condition.Chinese patent CN101876329B proposes one kind
Injection pump with variable nozzle, controls automatic executing agency to realize by rotation hand wheel or by the flow signal for gathering high-velocity fluid
The adjustability of jet pump nozzle.Chinese patent CN102748330A proposes a kind of Multi-nozzle steam jet type heat pump and operation
Method, is acted on by multiinjector group, improves jet coefficient, reaches stable mixed vapour pressure, pressure phase can not be utilized by reducing
The energy waste produced to low steam as driving steam.
Although above-mentioned technical proposal can realize the regulation of steam jet pump, needs are adjusted manually, or by steaming
Vapour test instrumentation obtains flow, temperature signal and passes it to controlling organization and be adjusted.But vapour survey instrument is difficult to accurately
Steam parameter is measured, controlling organization price is higher, and is difficult in adapt to the fast-changing operating mode of working steam parameter, for example：Adopt
The device of working steam is provided with solar energy for multiple-effect distillation device.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of Dynamic Self-Adjusting steam jet pump.
Technical scheme is summarized as follows：
A kind of Dynamic Self-Adjusting steam jet pump, including jet pump diffusion room 1, the diffuser 14 of jet pump diffusion room 1 are set
Mixed vapour outlet 4 is equipped with, the mixing section 13 of jet pump diffusion room 1 is connected with suction chamber 11, the upper locular wall of suction chamber 11, lower room
Jetting steam caused inlet tube 3 is provided with wall, preceding locular wall or rear locular wall, work steaming is provided through on the left locular wall of suction chamber 11
Vapour enters pipe 2, and working steam enters the one end of pipe 2 inside suction chamber 11 and is connected with nozzle 5, in the nozzle trunnion of nozzle 5
10 are fixedly installed porous fixed plate 8, and porous fixed plate includes centre bore and outer perimeter holes, and piston rod 12 passes through one end after spring 7
It is fixedly connected with regulating piston 6, the other end is flexibly connected after passing through the centre bore of porous fixed plate 8 with pin 9.
The axial cross section of the steam inlet side of regulating piston 6 is to enter the center line of pipe 2 as symmetry axis using working steam
Isosceles triangle or symmetrical parabolic arch.
Outer perimeter holes in porous fixed plate 8 are preferably that annular is uniformly distributed.
It is frequent, fast in working steam pressure that a kind of Dynamic Self-Adjusting steam jet pump of the present invention can adapt to steam jet pump
Optimal working point is automatically found under the operating mode of speed fluctuation；Higher jet coefficient is produced under conditions of equal working steam, from
And improve operating efficiency；It is simple in construction, it is easily manufactured.It is low-temperature multi-effect the invention is particularly suited to solar energy heat utilization device
Distillation seawater desalinating device provides the occasion of working steam, provides a kind of effective for solar energy optical-thermal distillation seawater desalinating device
Steam injection equipment, with good social and economic benefit.
Brief description of the drawings
Fig. 1 is Dynamic Self-Adjusting steam jet pump structural representation；
Fig. 2 is nozzle arrangements schematic diagram；
Fig. 3 is porous fixed plate structure schematic diagram；
Fig. 4 is the axial sectional diagrammatical view illustration of regulating piston 6.
Fig. 5 is the schematic diagram of another shape axial cross section of regulating piston 6.
In figure marked as：
1- jet pump diffusions room 2- working steams enter pipe
The jetting steam caused inlet tube 4- mixed vapours outlets of 3-
5- nozzle 6- regulating pistons
The porous fixed plates of 7- springs 8-
9- pin 10- nozzle trunnions
11- suction chamber 12- piston rods
13- mixing section 14- diffusers
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.The citing of the present invention is in order that those skilled in the art
Member better understood when the present invention, but the present invention not imposed any restrictions.
A kind of Dynamic Self-Adjusting steam jet pump, is shown in Fig. 1 and Fig. 2, including jet pump diffusion room 1, jet pump diffusion room 1
Diffuser 14 is provided with mixed vapour outlet 4, and the mixing section 13 of jet pump diffusion room 1 is connected with suction chamber 11, suction chamber 11
Jetting steam caused inlet tube 3 is provided with upper locular wall, lower locular wall, preceding locular wall or rear locular wall, is run through on the left locular wall of suction chamber 11
Working steam is provided with into pipe 2, working steam enters the one end of pipe 2 inside suction chamber 11 and is connected with nozzle 5, in nozzle
5 nozzle trunnion 10 is fixedly installed porous fixed plate 8, and porous fixed plate includes centre bore and outer perimeter holes, and piston rod 12 is passed through
One end is fixedly connected with regulating piston 6 after spring 7, and the other end is connected after passing through the centre bore of porous fixed plate 8 with the activity of pin 9
Connect.
The axial cross section of the steam inlet side of regulating piston 6 is to enter the center line of pipe 2 as symmetry axis using working steam
Isosceles triangle (see Fig. 4) or symmetrical parabolic arch (see Fig. 5).
Outer perimeter holes in porous fixed plate 8 are preferably that annular is uniformly distributed (see Fig. 3).
A kind of Dynamic Self-Adjusting steam jet pump of the present invention is particularly suitable for providing power steam by solar energy hot systems
Low temperature multiple-effect distillation sea water desalting device, when solar irradiance is higher, solar energy hot systems produce vapour pressure
Power is higher, and high steam promotes the compression spring 7 of regulating piston 6, moves right, and reduces steam inlet sectional area, reduces steam stream
Amount；When solar irradiance is relatively low, the steam pressure that solar energy hot systems are produced is relatively low, and spring 7 promotes piston 6 to moving to left
It is dynamic, increase steam inlet sectional area, increase working steam flow.With the fluctuation of steam pressure, piston 6 is in spring 7 and work
Under the interaction of steam, move left and right, to reach the stable operation of steam jet pump.
Foregoing description is only the present invention preferably embodiment, but protection scope of the present invention is not limited thereto,
Any those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
This is included within the scope of the present invention.
Claims (3)
1. a kind of Dynamic Self-Adjusting steam jet pump, including jet pump diffusion room (1), the diffuser of jet pump diffusion room (1)
(14) mixed vapour outlet (4) is provided with, the mixing section (13) of jet pump diffusion room (1) is connected with suction chamber (11), suction chamber
(11) jetting steam caused inlet tube (3), the left side in suction chamber (11) are provided with upper locular wall, lower locular wall, preceding locular wall or rear locular wall
Working steam is provided through on locular wall and enters pipe (2), working steam enters pipe (2) and connected positioned at the internal one end of suction chamber (11)
Nozzle (5) is connected to, it is characterized in that the nozzle trunnion (10) in nozzle (5) is fixedly installed porous fixed plate (8), porous fixed plate
Including centre bore and outer perimeter holes, through spring (7), one end is fixedly connected piston rod (12) with regulating piston (6) afterwards, and the other end is worn
Cross after the centre bore of porous fixed plate (8) with pin (9) flexible connection.
2. a kind of Dynamic Self-Adjusting steam jet pump according to claim 1, it is characterized in that the steaming of the regulating piston (6)
The axial cross section of vapour entrance side is to enter the center line of pipe (2) as the isosceles triangle or symmetrical parabolic of symmetry axis using working steam
Line arch.
3. Dynamic Self-Adjusting steam jet pump according to claim 1, it is characterized in that outer in the porous fixed plate (8)
Zhou Kongwei annulars are uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510477583.1A CN105179328B (en) | 2015-08-05 | 2015-08-05 | A kind of Dynamic Self-Adjusting steam jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510477583.1A CN105179328B (en) | 2015-08-05 | 2015-08-05 | A kind of Dynamic Self-Adjusting steam jet pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105179328A CN105179328A (en) | 2015-12-23 |
| CN105179328B true CN105179328B (en) | 2017-07-28 |
Family
ID=54901658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510477583.1A Expired - Fee Related CN105179328B (en) | 2015-08-05 | 2015-08-05 | A kind of Dynamic Self-Adjusting steam jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105179328B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869357A (en) * | 2017-12-02 | 2019-06-11 | 哈尔滨工大金涛科技股份有限公司 | Elastic steam jet ejector |
| CN112943710B (en) * | 2021-02-18 | 2022-08-02 | 哈尔滨工程大学 | A wide type ejector for hydrogen fuel cell circulation system |
| CN112780614B (en) * | 2021-02-18 | 2022-08-02 | 哈尔滨工程大学 | Hydrogen ejector for flow-adjustable fuel cell |
| CN113280008A (en) * | 2021-06-24 | 2021-08-20 | 顺德职业技术学院 | Environment-friendly energy automobile drainage device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE516081C2 (en) * | 1999-01-26 | 2001-11-12 | Tetra Laval Holdings & Finance | Method for controlling a steam injector |
| CN2856530Y (en) * | 2005-01-04 | 2007-01-10 | 夏嘉琪 | Insitu real time controllable double regulating jet pump |
| CN201705741U (en) * | 2010-05-28 | 2011-01-12 | 杜战奇 | Sprayer capable of adjusting the distance between a nozzle and a mixing chamber inlet and the nozzle critical section |
| EP2646763B1 (en) * | 2010-11-30 | 2016-08-10 | Carrier Corporation | Ejector |
| CN202579361U (en) * | 2012-06-07 | 2012-12-05 | 天津聚贤达科技有限公司 | Automatic control type steam jet heat pump |
| CN203201882U (en) * | 2013-03-13 | 2013-09-18 | 天津水利电力机电研究所 | Jet pump system regulated based on PID |
-
2015
- 2015-08-05 CN CN201510477583.1A patent/CN105179328B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN105179328A (en) | 2015-12-23 |
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| CF01 | Termination of patent right due to non-payment of annual fee |