CN101594077B - Multi-stage capillary pump - Google Patents
Multi-stage capillary pump Download PDFInfo
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- CN101594077B CN101594077B CN 200910072430 CN200910072430A CN101594077B CN 101594077 B CN101594077 B CN 101594077B CN 200910072430 CN200910072430 CN 200910072430 CN 200910072430 A CN200910072430 A CN 200910072430A CN 101594077 B CN101594077 B CN 101594077B
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Abstract
The invention provides a multi-stage capillary pump, which comprises a first-stage porous structure taken as a condenser, a second-stage porous structure taken as a capillary channel and a third-stage porous structure taken as an evaporator, wherein the three stages of porous structures are connected into a whole; capillary apertures of the porous capillary structures are different from each other, the first-stage porous structure has the largest capillary aperture, the second-stage porous structure has the capillary aperture smaller than that of the first-stage porous structure, and the third-stage porous structure has the smallest capillary aperture; and an outlet end of the third-stage porous structure of the evaporator is provided with an concave outlet. The multi-stage capillary pump can ensure the full circulation of an alkaline metal working fluid in an alkaline metal thermoelectric direct converter, avoid the flow breaking of the alkaline metal working fluid formed by the alkaline metal thermoelectric direct converter during high load, and avoid the dry burning produced in the capillary pump.
Description
(1) technical field
The present invention relates to a kind of loose structure device that collects the working medium condensation, transmits and be evaporated to one.This device is particularly useful in the alkali metal thermo-electric direct conversion device (being abbreviated as AMTEC).
(2) background technology
Alkali metal thermo-electric conversion dress just utilizes alkali metal working medium latent heat to carry out a kind of device of NE BY ENERGY TRANSFER.Its alkali metal working medium is sodium, potassium and alloy thereof etc.In research in the past, find to exist the efficient of multiple factor affecting thermoelectric converter.Like solid electrolyte (Beta " Alumina Solid Electrolyte-BASE) performance, electrode performance, whole thermal loss, high low-temperature end temperature or the like.Because condensation, power resources and the evaporation of working medium all occur in the loose structure.Influence is huge so loose structure is to the alkali metal thermo-electric transducer.
When working medium got into big capillary aperture area, because its capillary aperture is bigger, permeability was stronger, and the absorption affinity of generation is less; In small-bore zone, its capillary aperture is less, permeability a little less than, but it has bigger capillary force.
Graded porosity artery for alkali metal thermal to clectricconversion (AMTEC) cells/5; 952; Disclose the porous path of a kind of AMTEC of being used among the 605/Robert K., this loose structure has connected AMTEC high pressure and low-pressure end.And alkali metal working medium is transported to high-pressure side from low-pressure end; This porous path is useful on condenser condensing in cold junction one side, is useful on the evaporator of evaporation in high temperature section one side.This this capillary passageway, evaporator and condenser have different capillarys aperture to meet the needs of according to the each several part characteristics.
(3) summary of the invention
The object of the present invention is to provide a kind ofly can guarantee that alkali metal working medium fully circulates in alkali metal thermo-electric direct converter, avoid because the kind multi-stage capillary pump of the alkali metal working medium cutout that the alkali metal thermo-electric transducer forms when high capacity.
The objective of the invention is to realize like this:
The present invention it comprise first order loose structure as condenser, as the second level loose structure of capillary passageway with as the third level loose structure of evaporator; Three grades of loose structures link into an integrated entity; And the capillary aperture of porous capillary structures at different levels has nothing in common with each other, and the capillary aperture of the first order is maximum, and partial capillary aperture is littler than the first order; The capillary aperture of the third level is minimum, is the spill outlet as the port of export of the third level porous capillary structure of evaporator.
The present invention can also comprise:
1, the section of described spill outlet is a triangle, and drift angle angle [alpha] scope is between 20-120 °.
2, the section of described spill outlet is a shaped form, and drift angle seamlessly transits.
3, as the porous capillary structure of the second level loose structure of capillary passageway by capillary wick, capillary be enclosed within capillary wick and intercapillary concentric column is formed; Capillary aperture in capillary wick and the capillary is inequality, and the capillary aperture of capillary wick is less than capillary capillaceous aperture.
4, second and the porous capillary structure of third level loose structure outside be with sleeve pipe.
The present invention forms condenser, capillary passageway and evaporator the structure of an one.Because each critical piece is porous capillary structure, and its capillary aperture has nothing in common with each other, so this contrive equipment totally is divided into three grades.The first order is the condenser with big capillary aperture, and using big capillary aperture at this is in order to reduce the pressure loss.The capillary aperture of partial capillary passageway reduces than first rank to some extent.This is the absorption affinity in order to guarantee that liquid refrigerant is enough.The evaporator aperture of the third level is minimum, and the capillary force of generation is maximum, and this capillary force can provide enough power for working medium flows.
This device can be selected the evaporator outlet angle [alpha] according to concrete operating position in order to improve the evaporation efficiency of evaporator simultaneously.This device can also use in addition a kind of evaporator of special outlet shape in addition.
In order to reduce the pressure loss of capillary passageway.This device can also select other a kind of capillary passageway.This capillary passageway is made up of capillary wick, capillary and concentric column.
The present invention can guarantee that alkali metal working medium fully circulates in alkali metal thermo-electric direct converter, avoids because the alkali metal working medium cutout that the alkali metal thermo-electric transducer forms when high capacity is avoided in capillary pump, producing " dry combustion method ".
(4) description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a kind of evaporator outlet shape sketch map of the present invention;
Fig. 3 is an another kind of evaporator outlet shape sketch map of the present invention;
Fig. 4 is an another kind of structural representation of the present invention;
Fig. 5 is the structural representation of concentric column.
(5) embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1, the critical piece of first kind of embodiment of the present invention is loose structure.So, can apparatus of the present invention be divided into three grades according to pore size.First order loose structure is a condenser 1.Second level loose structure is a capillary passageway 2.Third level loose structure is an evaporator 3.Condenser directly links to each other with capillary passageway.For the stable available bracing frame that guarantees condenser is played a supporting role.With refractory metal sleeve pipe 4 capillary passageway and evaporator are linked together.Outside capillary passageway and evaporator, be with stainless steel sleeve pipe 5, and use vacuum welding between evaporator and the stainless steel pipe box, can guarantee the sealing and the requirement of strength of capillary pump.Wherein condenser and capillary passageway are that the refractory alloy filament compacting of 5 μ m-20 μ m forms by diameter.Evaporator is then processed by metal dust.Its metal powder material can be chosen from nickel, molybdenum and nickel Mo.In order to reduce the AMTEC overall, improve permeability, the condenser of the first order is selected the bigger loose structure in capillary aperture for use; In order to reduce pressure drop, in flowing, lack absorption affinity but be unlikely to working medium, the capillary through holes footpath of second level is smaller than the capillary aperture of the first order.The capillary aperture of the third level is minimum in these three kinds of ranks.About 5 μ m-10 μ m, the capillary force that only in this way in evaporator, is produced just can provide enough power sources for whole AMTEC greatly.Condenser, capillary passageway and evaporator capillary aperture separately are a, b, c, and its relation is c＜b＜a.The port of export as the third level porous capillary structure of evaporator has the spill outlet.Combine Fig. 2 and Fig. 3 simultaneously, the spill outlet can be triangle outlet or concave curved outlet, and when being the triangle outlet, exit angle α scope is between 20-120 °; When being the concave curved outlet, drift angle seamlessly transits.
In conjunction with Fig. 4 and Fig. 5, second kind of embodiment of the present invention is on the basis of first kind of execution mode, and capillary passageway is designed to be made up of capillary wick 8, capillary 7 and donut 9 three parts.Capillary wick has identical length with capillary.Certain distance is arranged between capillary wick and the capillary.So just formed a cavity 6, cavity can reduce the pressure loss of whole capillary pump, and the loose structure of cavity both sides can provide enough absorption affinities for the working medium of liquid state.Capillary aperture in capillary wick and the capillary (e, d) also inequality.Capillary wick capillary aperture is smaller relatively.Why big relatively capillary capillary aperture is, is because because the heat transfer of stainless steel sleeve pipe can cause the evaporation of liquid refrigerant in the cavity.Working medium after the evaporation forms obstruction easily.For preventing this phenomenon,, reduce heat-transfer effect so adopt the bigger loose structure in capillary aperture to contact with the stainless steel sleeve pipe.It is to be used for fixing capillary wick and capillary relative position that a donut is arranged in the inside of cavity.Donut can be installed with the method for expanding with heat and contract with cold, and needn't its two parts that are adjacent fixed with welding method.This annulus is used for fixing capillary wick and capillary relative position.Wherein R1 is the diameter of capillary wick, and R2 is a capillary inner diameter.Material can be selected stainless steel.
Claims (2)
1. multi-stage capillary pump; It comprises first order porous capillary structure as condenser, as the second level porous capillary structure of capillary passageway with as the third level porous capillary structure of evaporator; It is characterized in that: three grades of porous capillary structures link into an integrated entity, and the capillary aperture of porous capillary structures at different levels has nothing in common with each other the capillary aperture maximum of the first order; Partial capillary aperture is littler than the first order; The capillary aperture of the third level is minimum, is the spill outlet as the port of export of the third level porous capillary structure of evaporator, and said second level porous capillary structure as capillary passageway is made up of capillary wick (8), capillary (7) and donut (9) three parts; Capillary wick has identical length with capillary; Have certain distance to form a cavity (6) between capillary wick and the capillary, the capillary aperture in capillary wick and the capillary is also inequality, and the capillary aperture of capillary wick is smaller relatively; The section of described spill outlet is a triangle, and drift angle angle [alpha] scope is between 20-120 °.
2. multi-stage capillary pump; It comprises first order porous capillary structure as condenser, as the second level porous capillary structure of capillary passageway with as the third level porous capillary structure of evaporator; It is characterized in that: three grades of porous capillary structures link into an integrated entity, and the capillary aperture of porous capillary structures at different levels has nothing in common with each other the capillary aperture maximum of the first order; Partial capillary aperture is littler than the first order; The capillary aperture of the third level is minimum, is the spill outlet as the port of export of the third level porous capillary structure of evaporator, and said second level porous capillary structure as capillary passageway is made up of capillary wick (8), capillary (7) and donut (9) three parts; Capillary wick has identical length with capillary; Have certain distance to form a cavity (6) between capillary wick and the capillary, the capillary aperture in capillary wick and the capillary is also inequality, and the capillary aperture of capillary wick is smaller relatively; The section of described spill outlet is a shaped form, and drift angle seamlessly transits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910072430 CN101594077B (en) | 2009-07-01 | 2009-07-01 | Multi-stage capillary pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910072430 CN101594077B (en) | 2009-07-01 | 2009-07-01 | Multi-stage capillary pump |
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| Publication Number | Publication Date |
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| CN101594077A CN101594077A (en) | 2009-12-02 |
| CN101594077B true CN101594077B (en) | 2012-12-19 |
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| CN 200910072430 Expired - Fee Related CN101594077B (en) | 2009-07-01 | 2009-07-01 | Multi-stage capillary pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344072A (en) * | 2016-02-03 | 2018-07-31 | 三峡大学 | A kind of warehouse dehumidification device with capillary tube |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307025A (en) * | 2011-09-15 | 2012-01-04 | 华北电力大学 | Integrated solar power generation and storage device |
| CN105207576A (en) * | 2015-10-28 | 2015-12-30 | 蒋安为 | Infrared generator |
| CN108119882A (en) * | 2017-12-19 | 2018-06-05 | 苏州亿拓光电科技有限公司 | LED component soaking plate and LED component based on biomimetic features |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5939666A (en) * | 1997-06-17 | 1999-08-17 | Hitachi Maxell, Ltd. | Evaporation front position control in alkali metal thermal electric conversion (AMTEC) cells |
| US5952605A (en) * | 1997-07-28 | 1999-09-14 | Advanced Modular Power Systems, Inc. | Graded porosity artery for alkali metal thermal to electric conversion (AMTEC) cells |
| US6433268B1 (en) * | 2001-02-15 | 2002-08-13 | The United States Of America As Represented By The Secretary Of The Air Force | Interior thermal radiation control for alkali metal thermal to electric conversion |
| CN201123203Y (en) * | 2007-11-23 | 2008-09-24 | 华南理工大学 | Evaporation chamber used for capillary pump loop |
-
2009
- 2009-07-01 CN CN 200910072430 patent/CN101594077B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5939666A (en) * | 1997-06-17 | 1999-08-17 | Hitachi Maxell, Ltd. | Evaporation front position control in alkali metal thermal electric conversion (AMTEC) cells |
| US5952605A (en) * | 1997-07-28 | 1999-09-14 | Advanced Modular Power Systems, Inc. | Graded porosity artery for alkali metal thermal to electric conversion (AMTEC) cells |
| US6433268B1 (en) * | 2001-02-15 | 2002-08-13 | The United States Of America As Represented By The Secretary Of The Air Force | Interior thermal radiation control for alkali metal thermal to electric conversion |
| CN201123203Y (en) * | 2007-11-23 | 2008-09-24 | 华南理工大学 | Evaporation chamber used for capillary pump loop |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344072A (en) * | 2016-02-03 | 2018-07-31 | 三峡大学 | A kind of warehouse dehumidification device with capillary tube |
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| CN101594077A (en) | 2009-12-02 |
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