CN106194639A - A kind of multitube tapering type variable cross-section airlift pump - Google Patents
A kind of multitube tapering type variable cross-section airlift pump Download PDFInfo
- Publication number
- CN106194639A CN106194639A CN201610545814.2A CN201610545814A CN106194639A CN 106194639 A CN106194639 A CN 106194639A CN 201610545814 A CN201610545814 A CN 201610545814A CN 106194639 A CN106194639 A CN 106194639A
- Authority
- CN
- China
- Prior art keywords
- variable cross
- type variable
- tapering type
- airlift pump
- section
- 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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/20—Other positive-displacement pumps
- F04B19/24—Pumping by heat expansion of pumped fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
Abstract
A kind of multitube tapering type variable cross-section airlift pump, it is characterised in that: include at least one of bubble generator, gas-liquid separator, connection bubble generator and gas-liquid separator setting up and down the vertical-lifting pipe of gradual contraction and the heat-exchange device that is arranged in bubble generator from top to bottom.Owing to installing many tapering type variable cross-section vertical-lifting pipes, the amount of liquid promoted in unit interval can reach maximum, tapering type variable cross-section riser to a certain degree can make up the negative effect that bubble size change brings, it is thus possible to more preferably ensure the flow pattern that bubble rises, improve airlift pump work efficiency.
Description
Technical field
The present invention relates to airlift pump, belong to sorption type refrigerating technology field.
Background technology
In absorption system, airlift pump is dependent on the boiling generation taylor bubble of working medium to be risen to come in vertical tube
Realize the device that liquid working substance promotes.Current research point out the manifold of the two phase flow in vertical-lifting pipe be in slug flow or by
Slug flow is when bulk flows through the manifold crossed, and airlift pump can reach the liquid that the highest transfer efficiency, i.e. unit interval are promoted
The scale of construction is maximum.
Research currently for airlift pump stays in same pipe footpath Straight riser always, and the tube construction of research compares
Single, airlift pump work process can cause cycle of operation to fluctuate due to Temperature of Working.Present stage airlift pump exists following
Major defect and problem: when heating bottom existing vertical-lifting pipe, the inhomogeneities of heating and the bubbles volume of generation by
Gradually increasing less, bubble there will be condensation because temperature reduces and causes bubble size to reduce so that in vertical-lifting pipe
Manifold is no longer in suitable manifold, and the most current airlift pump is it cannot be guaranteed that under in riser, two phase flow has been at slug flow
Work, the efficiency of airlift pump can not maintain optimum state；
To sum up, present stage airlift pump is when utilizing low-grade unstable thermal source, and service behaviour fluctuates greatly and efficiency, and liquid carries
Rising amount can not be guaranteed, it would be highly desirable to a kind of pumping efficiency of research and development is high, stable good, can directly utilize low-grade unstable thermal source
Novel airlift pump.
Summary of the invention
The present invention is directed to present stage airlift pump bubble there will be condensation because temperature reduces and cause bubble size to reduce
With popular instability, liquid elevated problem little, inefficient, it is proposed that a kind of novel multitube tapering type variable cross-section bubble
Pump, this device uses many tapering type variable cross-section vertical-lifting pipes and is arranged on the heat exchange dress of bubble generator inner bottom part central authorities
Put, after the liquid in bubble generator being uniformly heated up by heat-exchange device so that it is boiling produces bubble, bubble and generator
Interior liquid together enters tapering type variable cross-section vertical-lifting pipe, and under the driving of pressure reduction, biphase gas and liquid flow is thus lifted to gas-liquid and divides
In device, finally greatly increase the work efficiency of whole device.
A kind of multitube tapering type variable cross-section airlift pump, it is characterised in that: include that bubble generator setting up and down, gas-liquid are divided
From device, connection bubble generator and at least one of gas-liquid separator cross section diminishing vertical-lifting pipe from top to bottom with
And the heat-exchange device being arranged in bubble generator.
The multitube tapering type variable cross-section airlift pump that the present invention provides, it is also possible to have the feature that, it is characterised in that: its
In, the interior caliber of vertical-lifting pipe is gradually reduced from top to bottom.
The multitube tapering type variable cross-section airlift pump that the present invention provides, it is also possible to have the feature that, it is characterised in that: its
In, at the lower center position that heat exchanger is arranged in bubble generator, it is connected with external heat source.
The multitube tapering type variable cross-section airlift pump that the present invention provides, it is also possible to have the feature that, it is characterised in that: its
In, the lower end of vertical-lifting pipe has horn-like increaser, and the lower end of this horn-like increaser is connected with bubble generator, is used for
Bubble in bubble generator is collected.
The multitube tapering type variable cross-section airlift pump that the present invention provides, it is also possible to have the feature that, it is characterised in that: its
In, bubble generator has the connecting tube being arranged on bottom, in from external complement liquid to bubble generator.
The multitube tapering type variable cross-section airlift pump that the present invention provides, it is also possible to have the feature that, it is characterised in that: its
In, gas-liquid separator has the gas outlet pipe being arranged on top and the liquid discharge tube being arranged on bottom.
Invention effect and effect
According to multitube provided by the present invention tapering type variable cross-section airlift pump, this device uses many tapering type variable cross-sections to erect
Straight riser and the heat-exchange device being arranged on bubble generator inner bottom part central authorities, by heat-exchange device in bubble generator
Liquid be uniformly heated up after so that it is boiling produces bubble, and in bubble and generator, together to enter tapering type variable cross-section vertical for liquid
Riser, under the driving of pressure reduction, biphase gas and liquid flow is thus lifted in gas-liquid separator, finally greatly increases whole device
Work efficiency.
Further, due to the amount of liquid energy promoted in installing many tapering type variable cross-section vertical-lifting pipes, unit interval
Reaching maximum, tapering type variable cross-section riser to a certain degree can make up the negative effect that bubble size change brings, thus
Can more preferably ensure the flow pattern that bubble rises, improve airlift pump work efficiency.
Closer, underground heat, the waste heat used heat of factory, too can be directly utilized owing to this device work efficiency is higher
The thermal source energy of the low-grade instability such as sun energy, expands the scope that thermal source utilizes, saves the energy and reduce equipment operating cost；
By being arranged on the heat-exchange device of bubble generator inner bottom part central authorities, liquid can be uniformly heated up, increase airlift pump work
Stability and reliability；Compact conformation is simple, cost is low and efficiency is high, applied range, facilitates marketing to apply.
Accompanying drawing explanation
Fig. 1 is the structural representation of the multitube tapering type variable cross-section airlift pump of the present invention.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, real below
Execute example to combine accompanying drawing the principle steps using effect of the multitube tapering type variable cross-section airlift pump of the present invention is specifically addressed.
Embodiment
Fig. 1 is the structural representation of the multitube tapering type variable cross-section airlift pump of the present invention.
As it is shown in figure 1, multitube tapering type variable cross-section airlift pump includes the vertical-lifting pipe 1 of 3 tapering type variable cross-sections, bubble
Generator 4, gas-liquid separator 7 and heat-exchange device 2.
One end little with the internal diameter of tapering type variable cross-section vertical-lifting pipe 1, the bottom of gas-liquid separator 7 is connected, tapering type change
The lower end that the internal diameter of the vertical-lifting pipe 1 in cross section is big has horn-like increaser 8, the lower end of this horn-like increaser 8 and bubble
The top of generator 4 is connected, for being collected the bubble in bubble generator.
Bottom in bubble generator 4 is provided with heat-exchange device 2, heat-exchange device 2 and external heat source (heat supply working medium)
It is connected and heats the liquid in bubble generator 4 so that it is producing bubble.Bubble and liquid flow through tapering type under the promotion of pressure
The vertical-lifting pipe 1 of variable cross-section, rises in gas-liquid separator 7, and gas part is from the upper gas discharge pipe of gas-liquid separator 7
6 discharge, and liquid is discharged from gas-liquid separator 7 bottom liquid discharge pipe 5.
Operation principle example:
In absorption system, after the generating process in bubble generator 4 terminates, the dilute ammonia solution of heat is through bubble
Connecting tube 3 bottom generator 4 flows into bubble generator 4 from low level reservoir.Dilute ammonia solution is installed in bubble and occurs
After heat-exchange device 2 in device 4 heats again, solution is heated to seethe with excitement and produces bubble, and the bubble of generation enters back into tapering type change and cuts
In the vertical-lifting pipe 1 in face, bubble enters into gas-liquid separator 7 together with the liquid in bubble generator 4 is under pressure promotes
In, liquid will accumulate in more greatly gas-liquid separator 7 bottom due to density, and is discharged by liquid discharge tube 5；Gas will accumulate in
Gas-liquid separator top, and discharged by gas outlet pipe 6.
The effect of embodiment and beneficial effect
The multitube tapering type variable cross-section airlift pump provided according to the present embodiment, this device uses many tapering type variable cross-sections
Vertical-lifting pipe and the heat-exchange device being arranged on bubble generator inner bottom part central authorities, by heat-exchange device to bubble generator
In liquid be uniformly heated up after so that it is boiling produce bubble, in bubble and generator liquid together enter tapering type variable cross-section erect
Straight riser, under the driving of pressure reduction, biphase gas and liquid flow is thus lifted in gas-liquid separator, finally greatly increases whole dress
The work efficiency put.
Further, due to the amount of liquid energy promoted in installing many tapering type variable cross-section vertical-lifting pipes, unit interval
Reaching maximum, tapering type variable cross-section riser to a certain degree can make up the negative effect that bubble size change brings, thus
Can more preferably ensure the flow pattern that bubble rises, improve airlift pump work efficiency.
Closer, underground heat, the waste heat used heat of factory, too can be directly utilized owing to this device work efficiency is higher
The thermal source energy of the low-grade instability such as sun energy, expands the scope that thermal source utilizes, saves the energy and reduce equipment operating cost；
By being arranged on the heat-exchange device of bubble generator inner bottom part central authorities, liquid can be uniformly heated up, increase airlift pump work
Stability and reliability；Compact conformation is simple, cost is low and efficiency is high, applied range, facilitates marketing to apply.
Further, since the lower end of vertical-lifting pipe has horn-like increaser, the straight tube opening that such structure is more general
Can more collect greatly bubble, effect is more preferable.
Claims (6)
1. a multitube tapering type variable cross-section airlift pump, it is characterised in that:
Including bubble generator setting up and down, gas-liquid separator, the described bubble generator of connection and gas-liquid separator at least
A piece cross section diminishing vertical-lifting pipe and be arranged on the heat-exchange device in described bubble generator from top to bottom.
Multitube the most according to claim 1 tapering type variable cross-section airlift pump, it is characterised in that:
Wherein, the interior caliber of described vertical-lifting pipe is gradually reduced from top to bottom.
Multitube the most according to claim 1 tapering type variable cross-section airlift pump, it is characterised in that:
Wherein, described heat exchanger is arranged at the lower center position in described bubble generator, is connected with external heat source.
Multitube the most according to claim 1 tapering type variable cross-section airlift pump, it is characterised in that:
Wherein, the lower end of described vertical-lifting pipe has horn-like increaser, the lower end of this horn-like increaser and described bubble
Generator is connected, for being collected the bubble in described bubble generator.
Multitube the most according to claim 1 tapering type variable cross-section airlift pump, it is characterised in that:
Wherein, described bubble generator has the connecting tube being arranged on bottom, for sending out to described bubble from external complement liquid
In raw device.
Multitube the most according to claim 1 tapering type variable cross-section airlift pump, it is characterised in that:
Wherein, described gas-liquid separator has the gas outlet pipe being arranged on top and the liquid discharge tube being arranged on bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545814.2A CN106194639A (en) | 2016-07-12 | 2016-07-12 | A kind of multitube tapering type variable cross-section airlift pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545814.2A CN106194639A (en) | 2016-07-12 | 2016-07-12 | A kind of multitube tapering type variable cross-section airlift pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106194639A true CN106194639A (en) | 2016-12-07 |
Family
ID=57477024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610545814.2A Pending CN106194639A (en) | 2016-07-12 | 2016-07-12 | A kind of multitube tapering type variable cross-section airlift pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106194639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374837A (en) * | 2019-08-14 | 2019-10-25 | 清华大学 | Bladeless pump |
Citations (6)
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|---|---|---|---|---|
| CN1485997A (en) * | 2002-09-28 | 2004-03-31 | 华为技术有限公司 | Transmission method of control message in monitoring system |
| JP2004169603A (en) * | 2002-11-19 | 2004-06-17 | Kenji Okayasu | Heat driven pump |
| CN101725501A (en) * | 2009-11-20 | 2010-06-09 | 上海理工大学 | Gas bubble pump with gas bubble collecting device |
| CN103161709A (en) * | 2013-03-27 | 2013-06-19 | 上海理工大学 | Gas bubble pump device |
| CN103277283A (en) * | 2013-05-27 | 2013-09-04 | 上海理工大学 | Bubble pump and application of bubble pump |
| CN104712525A (en) * | 2015-01-26 | 2015-06-17 | 上海理工大学 | Multi-tube type bubble pump device |
-
2016
- 2016-07-12 CN CN201610545814.2A patent/CN106194639A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1485997A (en) * | 2002-09-28 | 2004-03-31 | 华为技术有限公司 | Transmission method of control message in monitoring system |
| JP2004169603A (en) * | 2002-11-19 | 2004-06-17 | Kenji Okayasu | Heat driven pump |
| CN101725501A (en) * | 2009-11-20 | 2010-06-09 | 上海理工大学 | Gas bubble pump with gas bubble collecting device |
| CN103161709A (en) * | 2013-03-27 | 2013-06-19 | 上海理工大学 | Gas bubble pump device |
| CN103277283A (en) * | 2013-05-27 | 2013-09-04 | 上海理工大学 | Bubble pump and application of bubble pump |
| CN104712525A (en) * | 2015-01-26 | 2015-06-17 | 上海理工大学 | Multi-tube type bubble pump device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374837A (en) * | 2019-08-14 | 2019-10-25 | 清华大学 | Bladeless pump |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |
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| WD01 | Invention patent application deemed withdrawn after publication |