CN104501472A - Flow self-matching nuclear heat source irregular-shaped evaporator adapting to thermal shock - Google Patents
Flow self-matching nuclear heat source irregular-shaped evaporator adapting to thermal shock Download PDFInfo
- Publication number
- CN104501472A CN104501472A CN201410720601.XA CN201410720601A CN104501472A CN 104501472 A CN104501472 A CN 104501472A CN 201410720601 A CN201410720601 A CN 201410720601A CN 104501472 A CN104501472 A CN 104501472A
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- China
- Prior art keywords
- pipeline
- way connection
- evaporator
- bending
- bends
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
- F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
- F25B2339/0242—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having tubular elements
Abstract
The invention belongs to the technical field of spacecraft thermal control and relates to an irregular-shaped evaporator, in particular to a flow self-matching nuclear heat source irregular-shaped evaporator adapting to thermal shock. The irregular-shaped evaporator comprises a steam converging ring (1), a liquid split-flow ring (2), four evaporator components (3) and a liquid filling pipe (4). According to the technical scheme, the steam converging ring (1) adopts a C-shaped structure, and the liquid split-flow ring (2) adopts a closed circular structure; each evaporator component (3) comprises an evaporator shell (3-1) and a heat collecting seat (3-2), the evaporator shell (3-1) is packaged in the heat collecting seat (3-2), and an axial capillary core (3-3) is arranged in the evaporator shell (3-1); the evaporator components (3) is mounted between the steam converging ring (1) and the liquid split-flow ring (2). The irregular-shaped evaporator can meet the using demand of gravity-driven two-phase fluid loops.
Description
Technical field
The invention belongs to spacecraft Evolution of Thermal Control Technique field, be specifically related to a kind of special-shaped evaporimeter.
Background technology
In the goddess in the moon's No. three rover with the thermal control design of lander, have employed weight-driven two-phase fluid loop be communicated with or cut off heat transfer channel out of my cabin between Isotopes thermal source and below deck equipment.As shown in Figure 1, it comprises the evaporimeter, condenser, reservoir and the control valve that are connected successively by pipeline to two-phase fluid circuit system composition; The two ends of described evaporimeter are respectively equipped with steam collector ring and separating liquid ring; When valve is in open mode, evaporimeter absorbs heat from isotope heat source, flashes to steam; Evaporimeter is the core component in two-phase fluid loop, should meet the following conditions:
1) need to adapt to violent thermal shock, as in the goddess in the moon's No. three tasks, when fluid circuit is opened, evaporator assemblies will be down to-10 DEG C from 265 DEG C process in the experience short time;
2) uniformly by the heat absorption of cylindrical core thermal source release;
3) installation and removal of nuclear heat source and simulation thermal source thereof should be facilitated.
Summary of the invention
The object of the invention is: a kind of special-shaped evaporimeter of flow Self Matching nuclear heat source adapting to thermal shock is provided, makes it meet the demand used;
Technical scheme of the present invention is: the special-shaped evaporimeter of flow Self Matching nuclear heat source adapting to thermal shock, and it comprises: steam collector ring, separating liquid ring, four evaporator assemblies and topping up pipe;
Steam collector ring is C shape structure, it is formed by connecting by three sections of L-type pipelines, wherein, one end of first L-type pipeline is provided with two pass joints, the other end is connected with the second L-type pipeline by three-way connection, be connected by four-way connection between second L-type pipeline with the 3rd L-type pipeline, the other end of the 3rd L-type pipeline is provided with two pass joints; The bending place of three sections of L-type pipelines is arc transition;
Separating liquid ring is closed loop configuration, it is formed by connecting by four sections of bending pipelines, wherein, first bending pipeline bends pipeline by three-way connection and second and is connected, second bending pipeline bends pipeline by three-way connection and the 3rd and is connected, 3rd bending pipeline bends pipeline by three-way connection and the 4th and is connected, and the 4th bending pipeline bends pipeline by four-way connection and first and is connected; The bending place of four sections of bending pipelines is arc transition;
The structure of four evaporator assemblies is identical, includes: evaporator shell and thermal-arrest seat; Evaporator shell is tubular structure, and it is wrapped in the inside of thermal-arrest seat, and two ends are higher than the end face of thermal-arrest seat, and thermal-arrest seat and nuclear heat source housing are fitted; Evaporator shell inside is provided with the length capillary wick equal with evaporator shell;
The upper end of four evaporator shells accesses two pass joints at the first L-type pipeline place respectively, the three-way connection of the first L-type pipeline and the second L-type line connection, four-way connection between second L-type pipeline and the 3rd L-type pipeline, and the 3rd two pass joint at L-type pipeline place, the lower end of four evaporator shells accesses the three-way connection that the first bending pipeline and second bends line connection respectively, second bending pipeline and the 3rd bends the three-way connection of line connection, 3rd bending pipeline and the 4th bends the three-way connection of line connection, and the 4th bends the four-way connection that pipeline and first bends line connection, spacing between adjacent evaporator shell is equal, topping up pipe accesses the four-way connection between the second L-type pipeline and the 3rd L-type pipeline, the four-way connection of steam collector ring is communicated with vapor line, and the four-way connection of separating liquid ring is communicated with liquid line.
Beneficial effect is: 1) bottom of the present invention is the function that loop configuration can realize uniform flux, and superstructure is C type open design, and whole assembly has extensibility, can adapt to the thermal stress that violent thermal shock produces.
2) 4 evaporator assemblies are distributed in nuclear heat source surrounding, all can rely on the automatic governing of gravity realization to flow, absorbed by the even heat of nuclear heat source under various attitude.
3) liquid under various attitude, can be sucked into whole evaporimeter by the silk screen in evaporator assemblies, realizes all even sufficient feed flow, reduces heat transfer temperature difference, guarantees that evaporator assemblies also can absorb heat uniformly in various lateral attitude.
4) upper and lower of the present invention is all without any interference, and the C type structure on top can adapt to the adjustment of certain surplus, facilitates the installation and removal repeatedly of nuclear heat source and simulation thermal source thereof.
Accompanying drawing explanation
Fig. 1 is the structural representation in the weight-driven two-phase fluid loop described in background technology;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the structural representation of steam collector ring in the present invention;
Fig. 4 is the structural representation of separating liquid ring in the present invention;
Fig. 5 is the structural representation of evaporator assemblies in the present invention;
Fig. 6 is the top view of evaporator assemblies in the present invention;
Wherein, 1-steam collector ring, 1-1 first L-type pipeline, 1-2 second L-type pipeline, 1-3 the 3rd L-type pipeline, 2-separating liquid ring, 2-1 first bends pipeline, 2-2 second bends pipeline, 2-3 the 3rd bends pipeline, 2-4 the 4th and bends pipeline, 3-evaporator assemblies, 3-1 evaporator shell, 3-2 thermal-arrest seat, 3-3 capillary wick, 4-topping up pipe.
Detailed description of the invention
See accompanying drawing 2, adapt to the special-shaped evaporimeter of flow Self Matching nuclear heat source of thermal shock, it comprises: steam collector ring 1, separating liquid ring 2, four evaporator assemblies 3 and topping up pipe 4;
See accompanying drawing 3, steam collector ring 1 is C shape structure, it is formed by connecting by three sections of L-type pipelines, wherein, one end of first L-type pipeline 1-1 is provided with two pass joints, the other end is connected with the second L-type pipeline 1-2 by three-way connection, is connected between the second L-type pipeline 1-2 with the 3rd L-type pipeline 1-3 by four-way connection, and the other end of the 3rd L-type pipeline 1-3 is provided with two pass joints; The bending place of three sections of L-type pipelines is arc transition;
See accompanying drawing 4, separating liquid ring 2 is the loop configuration closed, it is formed by connecting by four sections of bending pipelines, wherein, first bending pipeline 2-1 bends pipeline 2-2 by three-way connection and second and is connected, second bending pipeline 2-2 bends pipeline 2-3 by three-way connection and the 3rd and is connected, and the 3rd bending pipeline 2-3 bends pipeline 2-4 by three-way connection and the 4th and is connected, and the 4th bending pipeline 2-4 bends pipeline 2-1 by four-way connection and first and is connected; The bending place of four sections of bending pipelines is arc transition;
See accompanying drawing 5,6, the structure of four evaporator assemblies 3 is identical, includes: evaporator shell 3-1 and thermal-arrest seat 3-2; Evaporator shell 3-1 is tubular structure, and it is wrapped in the inside of thermal-arrest seat 3-2, and two ends are higher than the end face of thermal-arrest seat 3-2, and thermal-arrest seat 3-2 and nuclear heat source housing are fitted; Evaporator shell 3-1 inside is provided with the length capillary wick 3-3 equal with evaporator shell 3-1;
The upper end of four evaporator shell 3-1 accesses two pass joints at the first L-type pipeline 1-1 place respectively, the three-way connection of the first L-type pipeline 1-1 and the second L-type pipeline 1-2 junction, four-way connection between second L-type pipeline 1-2 and the 3rd L-type pipeline 1-3, and the 3rd two pass joint at L-type pipeline 1-3 place, the lower end of four evaporator shell 3-1 accesses the three-way connection that the first bending pipeline 2-1 and second bends pipeline 2-2 junction respectively, second bending pipeline 2-2 and the 3rd bends the three-way connection of pipeline 2-3 junction, 3rd bending pipeline 2-3 and the 4th bends the three-way connection of pipeline 2-4 junction, and the 4th bends the four-way connection that pipeline 2-4 and first bends pipeline 2-1 junction, spacing between adjacent evaporator shell 3-1 is equal, topping up pipe 4 accesses the four-way connection between the second L-type pipeline 1-2 and the 3rd L-type pipeline 1-3, the four-way connection of steam collector ring 1 is communicated with vapor line, and the four-way connection of separating liquid ring 2 is communicated with liquid line.
Preferably, be processed with screw thread at the inner peripheral surface of evaporator shell 3-1, when the liquid of separating liquid ring 2 is drawn high whole evaporator shell 3-1 by capillary wick 3-3 vertically, liquid can infiltrate to screw thread, evaporator shell 3-1 circumference is heated more even.
Preferably, evaporator shell 3-1 adopts stainless steel material with proof strength and security performance, and thermal-arrest seat 3-2 adopts aluminum alloy materials, and strengthening and the heat exchange of nuclear heat source, reduce heat transfer temperature difference.
During use, first by topping up pipe 4 by two-phase fluid vacuum-pumping loop, and then in two-phase fluid loop, inject liquid working substance by topping up pipe 4, after injection, topping up pipe 4 shut, because reservoir is set up higher than evaporimeter at cloth, therefore liquid working substance flows to evaporimeter under gravity; Liquid working substance injects four evaporator assemblies 3 by separating liquid ring 2, and under the effect of capillary wick 3-3, liquid working substance is promoted to top by the bottom of evaporator assemblies 3; Simultaneously under the effect of isotope heat source, liquid working substance heat absorption evaporation, steam converges to vapor line by steam collector ring 1.
Claims (4)
1. adapt to the special-shaped evaporimeter of flow Self Matching nuclear heat source of thermal shock, it comprises: steam collector ring (1), separating liquid ring (2), four evaporator assemblies (3) and topping up pipe (4); It is characterized in that:
Described steam collector ring (1) is C shape structure, it is formed by connecting by three sections of L-type pipelines, wherein, one end of first L-type pipeline (1-1) is provided with two pass joints, the other end is connected with the second L-type pipeline (1-2) by three-way connection, described second L-type pipeline (1-2) is connected by four-way connection with between the 3rd L-type pipeline (1-3), and the other end of described 3rd L-type pipeline (1-3) is provided with two pass joints; The bending place of described three sections of L-type pipelines is arc transition;
Described separating liquid ring (2) is the loop configuration closed, it is formed by connecting by four sections of bending pipelines, wherein, first bending pipeline (2-1) bends pipeline (2-2) by three-way connection and second and is connected, described second bending pipeline (2-2) bends pipeline (2-3) by three-way connection and the 3rd and is connected, described 3rd bending pipeline (2-3) bends pipeline (2-4) by three-way connection and the 4th and is connected, and described 4th bending pipeline (2-4) bends pipeline (2-1) by four-way connection and described first and is connected; The bending place of described four sections of bending pipelines is arc transition;
The structure of described four evaporator assemblies (3) is identical, includes: evaporator shell (3-1) and thermal-arrest seat (3-2); Described evaporator shell (3-1) is tubular structure, and it is wrapped in the inside of described thermal-arrest seat (3-2), and two ends are higher than the end face of described thermal-arrest seat (3-2), and described thermal-arrest seat (3-2) and nuclear heat source housing are fitted; Described evaporator shell (3-1) inside is provided with the length capillary wick (3-3) equal with described evaporator shell (3-1);
The upper end of described four evaporator shells (3-1) accesses two pass joints at described first L-type pipeline (1-1) place respectively, the three-way connection of described first L-type pipeline (1-1) and described second L-type pipeline (1-2) junction, four-way connection between described second L-type pipeline (1-2) and described 3rd L-type pipeline (1-3), and two pass joints at described 3rd L-type pipeline (1-3) place, the lower end of described four evaporator shells (3-1) accesses the three-way connection that described first bending pipeline (2-1) and second bends pipeline (2-2) junction respectively, described second bending pipeline (2-2) and the described 3rd bends the three-way connection of pipeline (2-3) junction, described 3rd bending pipeline (2-3) and the described 4th bends the three-way connection of pipeline (2-4) junction, and described 4th bending pipeline (2-4) and described first bends the four-way connection of pipeline (2-1) junction, spacing between adjacent described evaporator shell (3-1) is equal, described topping up pipe (4) accesses the four-way connection between described second L-type pipeline (1-2) and described 3rd L-type pipeline (1-3), the four-way connection of described steam collector ring (1) is communicated with vapor line, and the four-way connection of described separating liquid ring (2) is communicated with liquid line.
2. the special-shaped evaporimeter of flow Self Matching nuclear heat source adapting to thermal shock as claimed in claim 1, is characterized in that: the inner peripheral surface of described evaporator shell (3-1) is processed with screw thread.
3. the as claimed in claim 1 or 2 special-shaped evaporimeter of flow Self Matching nuclear heat source adapting to thermal shock, is characterized in that: described capillary wick (3-3) is by the woven wire coated metal sintered meshwork spot welding moulding after cutting out.
4. the special-shaped evaporimeter of flow Self Matching nuclear heat source adapting to thermal shock as claimed in claim 1 or 2, it is characterized in that: described evaporator shell (3-1) adopts stainless steel material, described thermal-arrest seat (3-2) adopts aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720601.XA CN104501472B (en) | 2014-12-02 | 2014-12-02 | Adapt to the flow of thermal shock from the special-shaped evaporimeter of coupling nuclear heat source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720601.XA CN104501472B (en) | 2014-12-02 | 2014-12-02 | Adapt to the flow of thermal shock from the special-shaped evaporimeter of coupling nuclear heat source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104501472A true CN104501472A (en) | 2015-04-08 |
| CN104501472B CN104501472B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410720601.XA Active CN104501472B (en) | 2014-12-02 | 2014-12-02 | Adapt to the flow of thermal shock from the special-shaped evaporimeter of coupling nuclear heat source |
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| CN (1) | CN104501472B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109857138A (en) * | 2019-01-28 | 2019-06-07 | 北京卫星环境工程研究所 | Quick Method of Adjustment based on the multiple coupled size chain mechanism of the non-referenced structure of spacecraft |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02282670A (en) * | 1989-04-24 | 1990-11-20 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| CN102393105A (en) * | 2011-11-09 | 2012-03-28 | 常熟市好的电器有限公司 | Evaporator for refrigeration equipment |
| CN202647700U (en) * | 2011-11-14 | 2013-01-02 | 无锡中阳新能源科技有限公司 | Thermal evaporation device |
-
2014
- 2014-12-02 CN CN201410720601.XA patent/CN104501472B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02282670A (en) * | 1989-04-24 | 1990-11-20 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| CN102393105A (en) * | 2011-11-09 | 2012-03-28 | 常熟市好的电器有限公司 | Evaporator for refrigeration equipment |
| CN202647700U (en) * | 2011-11-14 | 2013-01-02 | 无锡中阳新能源科技有限公司 | Thermal evaporation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109857138A (en) * | 2019-01-28 | 2019-06-07 | 北京卫星环境工程研究所 | Quick Method of Adjustment based on the multiple coupled size chain mechanism of the non-referenced structure of spacecraft |
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| Publication number | Publication date |
|---|---|
| CN104501472B (en) | 2016-05-04 |
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