CN202040536U - High-precision filling system for trace filling of working media - Google Patents
High-precision filling system for trace filling of working media Download PDFInfo
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- CN202040536U CN202040536U CN2011200624083U CN201120062408U CN202040536U CN 202040536 U CN202040536 U CN 202040536U CN 2011200624083 U CN2011200624083 U CN 2011200624083U CN 201120062408 U CN201120062408 U CN 201120062408U CN 202040536 U CN202040536 U CN 202040536U
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Abstract
The utility model provides a high-precision filling system for trace filling of working media. One end of an air supply device (1) is connected with a working medium source; the other end of the air supply device (1) is sequentially connected with an inlet valve (3) and a standard air storage system (4) by a pipeline connecting part (2); the standard air storage system (4) is connected with a sensor external system (6) by an outlet valve (5) and the pipeline connecting part (2) sequentially; the sensor external system (6), a vacuum guaranteeing system (8), an emptying and reclaiming device (9) and a filling component (10) are connected with one another by flow passage joints (7); the filling component (10) is connected with a heat pipe; a temperature measurement system (11) is clung to the standard air storage system (4) and is used for measuring the temperature of the standard air storage system (4); a pressure measurement system (12) is connected with the whole filling system by the sensor external system (6); one end of an over-pressure protective device (13) is connected with the standard air storage system (4); and the other end of the over-pressure protective device (13) is connected with a reclaimer in the emptying and reclaiming device (9).
Description
Technical field
The utility model belongs to heat-pipe working medium and fills technical field, relates in particular to a kind of highi degree of accuracy charging system that the working medium trace fills that carries out.
Background technique
Heat pipe is made up of shell, tube core and working medium (working medium), it has high thermal conductance effect and is bordering on the working state of isothermal, whether itself has moving element, the reliability height, be particularly suitable for weightlessness and low-g field and close use, so in astrovehicle thermal control technology, occupy critical role, little satellite heat pipe to diameter 2～3mm, big to huge hot pipe network, all be widely used in relating to occasions such as the desired heat radiation of space flight task, temperature equalization and temperature control.
Present existing heat pipe charging system is to adopt the micro-measurement pump to charge into quantitative working medium in heat pipe to realize, this methods for filling is (big working medium filling weight) when filling large and medium-sized heat pipe, the operating automation degree height, it is good to fill precision, it is stable to fill degree of accuracy, is the very ripe methods for filling on the heat pipe production line.But when fill small-sized heat pipe especially (unskilled labourer's matter filling weight) during the microminiature heat pipe with this method, filling precision can sharply descend, cause heat pipe to fill up-to-standard rate very low, had a strong impact on the manufacturing efficiency of heat pipe.
Along with the application more and more widely of small-sized, microminiature heat pipe, press for a kind of at efficient charging system small-sized, the microminiature heat pipe in fields such as space flight, industry, agriculturals.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome existing charging system and small-sized, microminiature heat pipe are being carried out fill precision and the low deficiency of up-to-standard rate when the working medium trace fills, provide a kind of small-sized, microminiature heat pipe are carried out the charging system that working medium accurately fills, trace fills, this charging system is applicable to that also the working medium of extraordinary heat pipe products such as variable thermal-conductance heat pipe, cryogenic heat pipe fills simultaneously.
Technical solution of the present invention is: the highi degree of accuracy charging system that a kind of working medium trace fills comprises that making-up air device, pipeline connecting parts, inlet valve, standard gas storage system, outlet valve, the outer welding system of sensor, stream joint, vacuum guarantee system, emptying recovering device, fill assembly, temperature measurement system, pressure-measuring system and overvoltage protective device;
Making-up air device one end connects the working medium source; the other end connects inlet valve and standard gas storage system successively by pipeline connecting parts; the standard gas storage system passes through outlet valve successively; pipeline connecting parts is connected with the outer welding system of sensor; the stream joint is with the outer welding system of sensor; vacuum guarantees system; the emptying recovering device; filling assembly links together; fill assembly and connect heat pipe; temperature measurement system is attached to the temperature that is used for the measurement standand gas storage system on the standard gas storage system; pressure-measuring system is connected with whole charging system by the outer welding system of sensor; overvoltage protective device one end is connected with the standard gas storage system, and an end connects the recover in the emptying recovering device.
Described standard gas storage system is made up of the standard air cylinder that one or more volumes do not wait, after each standard air cylinder two ends connects corresponding inlet valve and outlet valve, by the pipeline connecting parts parallel connection.
Described vacuum guarantees that system is made up of forvacuum subsystem, main vacuum subsystem and threeway three parts, and forvacuum subsystem, main vacuum subsystem are connected with the stream joint by threeway.
Described main vacuum subsystem comprises preevacuation pump, main vacuum pump, valve, compound vacuum gauge joint, vacuum valve, compound vacuum gauge; Vacuum valve one end connects threeway, and the other end connects the compound vacuum gauge joint, and the compound vacuum gauge joint is connected with main vacuum pump by valve, and main vacuum pump connects preevacuation pump.
The outer welding system of described sensor comprises three stop valves, a reset valve, a pressure transducer joint, be connected a stop valve between pipeline connecting parts and the pressure transducer joint, be connected stop valve, reset valve and stop valve successively between pressure transducer joint and the stream joint.
Pressure transducer in the described pressure-measuring system uses one, perhaps uses the pressure transducer of a plurality of different accuracies, range in parallel and switch mutually by valve.
The present invention compared with prior art beneficial effect is:
(1) the utility model adopts the principle that fills of gas equilibrium, and that has realized micro-working medium accurately fills function.
(2) the utility model can be selected suitable standard air cylinder working state and pressure transducer working state by different filling weights, and it is discontinuous adjustable to fill precision, and can guarantee that the precision that fills of working medium all is better than 5% under different filling weights.
(3) vacuum assurance of the present utility model system has realized carrying out the function of quick pumping high vacuum to filling heat pipe, and plays the effect that residual working medium in the removal system, protection main vacuum pump are not subjected to Working medium pollution.
(4) pressure transducer of the present utility model can use one, also can use the pressure transducer parallel connection of a plurality of different ranges, different accuracy, carry out switching between the sensor by valve, this mode helps guaranteeing the precision that fills of working medium under the different filling weights.
Description of drawings
Fig. 1 is the utility model device schematic representation.
Embodiment
As shown in Figure 1, system of the present invention comprises that making-up air device 1, pipeline connecting parts 2, inlet valve 3, standard gas storage system 4, outlet valve 5, the outer welding system 6 of sensor, stream joint 7, vacuum guarantee system 8, emptying recovering device 9, fill assembly 10, temperature measurement system 11, pressure-measuring system 12 and overvoltage protective device 13;
Making-up air device 1 one ends connect the working medium source; the other end connects inlet valve 3 and standard gas storage system 4 successively by pipeline connecting parts 2; standard gas storage system 4 is successively by outlet valve 5; pipeline connecting parts 2 is connected with the outer welding system 6 of sensor; stream joint 7 is with the outer welding system 6 of sensor; vacuum guarantees system 8; emptying recovering device 9; filling assembly 10 links together; fill assembly 10 and connect heat pipe; temperature measurement system 11 is attached to the temperature that is used for measurement standand gas storage system 4 on the standard gas storage system 4; pressure-measuring system 12 is connected with whole charging system by the outer welding system 6 of sensor; overvoltage protective device 13 1 ends are connected with standard gas storage system 4, and an end connects the recover in the emptying recovering device 9.
Described making-up air device 1 is made up of tonifying Qi joint, aeration valve and purifier, and the working medium source is connected with pipeline connecting parts 2 after connecting tonifying Qi joint, aeration valve and purifier successively.
Described standard gas storage system 4 is made up of the standard air cylinder that one or more volumes do not wait, after each standard air cylinder two ends connects corresponding inlet valve and outlet valve, by pipeline connecting parts 2 parallel connections.The volume of air cylinder and quantity are determined by factors such as the measuring accuracy of the mass range that fills working medium, pressure transducer and resolution.For example, filling working medium is CO
2, filling quality is about 4 grams and about 0.4 gram, is made up of 3 standard air cylinders in the standard gas storage system 4, and volume is respectively 10ml, 100ml, 600ml, and pressure transducer is measured range 5MPa, testing precision 0.01MPa, and 20 ℃ of room temperatures then fill 0.4 gram CO
2The time select 10ml standard air cylinder to fill, fill 4 the gram CO
2The time select 100ml standard air cylinder to fill.Be example to fill 0.4 gram again, according to ideal-gas equation:
Wherein: P-pressure, the m-quality, the M-molal weight, the R-proportionality constant is about 8.31441 ± 0.00026J/ (molK), the T-temperature, the charging system quality is m before then filling
Before=P
BeforeV
BeforeM/RT
Before, filling back charging system quality is m
After=P
AfterV
AfterM/RT
AfterSo, the working medium quality m=m that fills
Before-m
AfterSo, as long as variation in pressure is
The time, fill CO
2Quality be 0.4 the gram.
The outer welding system 6 of described sensor comprises three stop valves (valve 1, valve 2, valve 3), a reset valve, a pressure transducer joint, be connected a stop valve between pipeline connecting parts 2 and the pressure transducer joint, be connected stop valve, reset valve and stop valve successively between pressure transducer joint and the stream joint 7.
Described vacuum guarantees that system 8 is made up of forvacuum subsystem 81, main vacuum subsystem 82 and threeway 83 3 parts, forvacuum subsystem 81, main vacuum subsystem 82 are connected with stream joint 7 by threeway 83, this measurement in a closed series mode both can accurately be measured rough vacuum, also can accurately measure high vacuum.Described main vacuum subsystem 82 comprises preevacuation pump, main vacuum pump, valve, compound vacuum gauge joint, vacuum valve, compound vacuum gauge; Vacuum valve one end connects threeway 83, and the other end connects the compound vacuum gauge joint, and the compound vacuum gauge joint is connected with main vacuum pump by valve, and main vacuum pump connects preevacuation pump.Described forvacuum subsystem 81 comprises backing pump, valve, vacuum measuring instrument joint, vacuum valve, vacuum measuring instrument; Vacuum valve one end connects threeway 83, and the other end connects the vacuum measuring instrument joint, and the vacuum measuring instrument joint is connected with backing pump by valve.Backing pump is used for realizing fast remaining working medium in the rough vacuum of heat pipe and charging system and the removal system, and preevacuation pump and main vacuum pump one are used from the condition of high vacuum degree of realization system, thereby guarantee to fill the purity of working medium.Above-mentioned compound vacuum gauge is made up of Pirani gauge and ionization gauge.
Described emptying recovering device 9 comprises atmospheric valve and recover, and atmospheric valve is a stop valve, is used to discharge heat pipe and fills end back stream joint 7 and the remaining working medium that fills in the assembly 10; Atmospheric valve is connected with recover, prevents that remaining working medium directly is discharged to atmosphere and pollutes.
The described assembly 10 that fills comprises filling valve, filter and charging joint, and filling valve one end connects stream joint 7, one ends and connects filter, and filter connects charging joint, connects heat pipe by charging joint.
Above-mentioned purifier and filter are used to filter the interior impurity of working medium, dust, greasy dirt etc., realize that the high-purity of working medium fills.
Described temperature measurement system 11 is made up of temperature transducer, intelligent digital display instrument etc., temperature transducer quantity is corresponding with standard air cylinder quantity, be used to measure the temperature of in running order standard air cylinder, the intelligent digital display instrument shows temperature value measured.
Pressure-measuring system 12 is made up of pressure transducer, intelligent digital display instrument etc., pressure transducer can be one, also can be a plurality of parallel connections and the form of switching mutually by valve, concrete form by the character that fills working medium, fill factor such as quality and determine that pressure transducer is connected with system by the pressure transducer joint; The intelligent digital display instrument shows the force value of measuring.
Described overvoltage protective device 13 is made up of Decompression valves, and the quantity of Decompression valves is corresponding with standard air cylinder quantity, promptly on each standard air cylinder a Decompression valves is installed all, realizes the over-voltage protecting function to standard gas storage system 4; Decompression valves is connected with recover in the emptying recovering device 9, prevents that high-pressure working medium directly is discharged to atmosphere and pollutes.
Native system can also comprise an apparatus for measuring quality, be used to measure the quality that fills forward and backward heat pipe, thereby obtain actual heat pipe and fill quality, measuring accuracy that it is concrete and resolution fill the quality decision by the theory of heat pipe, are mainly used in check and examination after heat pipe fills.
Describe below in conjunction with the workflow of accompanying drawing this charging system.
At first heat pipe before filling is weighed, after weighing with the heat pipe connecting system, start vacuum and guarantee that system's 8 opposite heat tubes vacuumize, boot sequence is to start backing pump, preevacuation pump earlier, reach and start main vacuum pump (need when filling first vacuumize charging system repeatedly and it is taken off repeatedly wash, guarantee not have in the charging system after other contaminating impurity working medium) after the degree of vacuum that main vacuum pump starts by making-up air device 1 additional working medium in standard gas storage system 4 with filling working medium;
After degree of vacuum reaches requirement in the heat pipe, according to filling weight with fill precision and select suitable standard air cylinder working state by operation inlet valve 3, outlet valve 5 after, (opening degree of reset valve is determined by the working medium filling weight for open valve 1, valve 2, reset valve successively, can all outward winding in case of necessity), close the vacuum valve of main vacuum subsystem 82 simultaneously, and the pressure and the temperature of record system's this moment;
Open valve 3 then and treat and fill heat pipe and carry out deep cooling cooling, when system pressure drop was between the 0.1～0.5MPa that is higher than the pressure predetermined value, cut-off valve 3 was also treated and is filled heat pipe and cool off, and closes filling valve then; Open valve 3, treat system stability, measuring system pressure, when reaching predetermined value as system pressure, cut-off valve 3 is opened filling valve, and opposite heat tube carries out closing filling valve behind the deep cooling, and filling process finishes; If system pressure do not reach predetermined value, repeat " cut-off valve 3 is opened filling valve; treat and fill heat pipe and cool off; close filling valve then, open valve 3, treat system stability; measuring system pressure ", reach predetermined value until system pressure, cut-off valve 3 is opened filling valve, opposite heat tube carries out closing filling valve behind the deep cooling, and filling process finishes;
Filling process finishes back cut-off valve 1, valve 2, reset valve, opposite heat tube seals and takes off heat pipe, opens atmospheric valve and filling valve simultaneously, to be filled fill pipeline inner pressure when consistent with ambient pressure environment, take off heat pipe and close filling valve and atmospheric valve, fill and finish.
Whether the heat pipe that takes off is weighed, and calculate actual working medium and fill quality and fill precision, it is qualified to determine to fill heat pipe.The heat pipe that adopts this flow and method to fill fills precision and all is better than 5%, and up-to-standard rate is better than 96%.
The unspecified part of the utility model belongs to general knowledge as well known to those skilled in the art.
Claims (6)
1. the highi degree of accuracy charging system that the working medium trace fills is characterized in that: comprise that making-up air device (1), pipeline connecting parts (2), inlet valve (3), standard gas storage system (4), outlet valve (5), the outer welding system (6) of sensor, stream joint (7), vacuum guarantee system (8), emptying recovering device (9), fill assembly (10), temperature measurement system (11), pressure-measuring system (12) and overvoltage protective device (13);
Making-up air device (1) one end connects the working medium source; the other end connects inlet valve (3) and standard gas storage system (4) successively by pipeline connecting parts (2); standard gas storage system (4) is successively by outlet valve (5); pipeline connecting parts (2) is connected with the outer welding system (6) of sensor; stream joint (7) is with the outer welding system (6) of sensor; vacuum guarantees system (8); emptying recovering device (9); filling assembly (10) links together; fill assembly (10) and connect heat pipe; temperature measurement system (11) is attached to the temperature that is used for measurement standand gas storage system (4) on the standard gas storage system (4); pressure-measuring system (12) is connected with whole charging system by the outer welding system (6) of sensor; overvoltage protective device (13) one ends are connected with standard gas storage system (4), and an end connects the recover in the emptying recovering device (9).
2. the highi degree of accuracy charging system that a kind of working medium trace according to claim 1 fills, it is characterized in that: described standard gas storage system (4) is made up of the standard air cylinder that one or more volumes do not wait, after each standard air cylinder two ends connects corresponding inlet valve and outlet valve, by pipeline connecting parts (2) parallel connection.
3. the highi degree of accuracy charging system that a kind of working medium trace according to claim 1 fills, it is characterized in that: described vacuum guarantees that system (8) is made up of forvacuum subsystem (81), main vacuum subsystem (82) and threeway (83) three parts, and forvacuum subsystem (81), main vacuum subsystem (82) are connected with stream joint (7) by threeway (83).
4. the highi degree of accuracy charging system that a kind of working medium trace according to claim 3 fills is characterized in that: described main vacuum subsystem (82) comprises preevacuation pump, main vacuum pump, valve, compound vacuum gauge joint, vacuum valve, compound vacuum gauge; Vacuum valve one end connects threeway (83), and the other end connects the compound vacuum gauge joint, and the compound vacuum gauge joint is connected with main vacuum pump by valve, and main vacuum pump connects preevacuation pump.
5. the highi degree of accuracy charging system that a kind of working medium trace according to claim 1 fills, it is characterized in that: the outer welding system (6) of described sensor comprises three stop valves, a reset valve, a pressure transducer joint, be connected a stop valve between pipeline connecting parts (2) and the pressure transducer joint, be connected stop valve, reset valve and stop valve successively between pressure transducer joint and the stream joint (7).
6. the highi degree of accuracy charging system that a kind of working medium trace according to claim 1 fills, it is characterized in that: pressure transducer in the described pressure-measuring system (12) uses one, perhaps uses the pressure transducer of a plurality of different accuracies, range in parallel and switch mutually by valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200624083U CN202040536U (en) | 2011-03-10 | 2011-03-10 | High-precision filling system for trace filling of working media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200624083U CN202040536U (en) | 2011-03-10 | 2011-03-10 | High-precision filling system for trace filling of working media |
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| Publication Number | Publication Date |
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| CN202040536U true CN202040536U (en) | 2011-11-16 |
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| CN2011200624083U Expired - Fee Related CN202040536U (en) | 2011-03-10 | 2011-03-10 | High-precision filling system for trace filling of working media |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194825A (en) * | 2018-01-10 | 2018-06-22 | 北京微焓科技有限公司 | A kind of modified room temperature gaseous working medium quantifies charging system and its methods for filling |
| CN108196505A (en) * | 2018-01-10 | 2018-06-22 | 北京微焓科技有限公司 | A kind of room temperature gaseous working medium quantifies charging system and its methods for filling |
| CN109185695A (en) * | 2018-09-25 | 2019-01-11 | 武汉钢铁集团气体有限责任公司 | A kind of high pressure gas charging system and its methods for filling |
-
2011
- 2011-03-10 CN CN2011200624083U patent/CN202040536U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194825A (en) * | 2018-01-10 | 2018-06-22 | 北京微焓科技有限公司 | A kind of modified room temperature gaseous working medium quantifies charging system and its methods for filling |
| CN108196505A (en) * | 2018-01-10 | 2018-06-22 | 北京微焓科技有限公司 | A kind of room temperature gaseous working medium quantifies charging system and its methods for filling |
| CN108196505B (en) * | 2018-01-10 | 2023-06-30 | 北京微焓科技有限公司 | Normal-temperature gaseous working medium quantitative filling system and filling method thereof |
| CN108194825B (en) * | 2018-01-10 | 2023-08-22 | 北京微焓科技有限公司 | Improved normal-temperature gaseous working medium quantitative filling system and filling method thereof |
| CN109185695A (en) * | 2018-09-25 | 2019-01-11 | 武汉钢铁集团气体有限责任公司 | A kind of high pressure gas charging system and its methods for filling |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20190310 |
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| CF01 | Termination of patent right due to non-payment of annual fee |