CN102563350A - Large-sized double-heat-sink closed liquid nitrogen delivery system and working method thereof - Google Patents

Large-sized double-heat-sink closed liquid nitrogen delivery system and working method thereof Download PDF

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CN102563350A
CN102563350A CN2012100577768A CN201210057776A CN102563350A CN 102563350 A CN102563350 A CN 102563350A CN 2012100577768 A CN2012100577768 A CN 2012100577768A CN 201210057776 A CN201210057776 A CN 201210057776A CN 102563350 A CN102563350 A CN 102563350A
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liquid nitrogen
stop valve
heat sink
hand stop
valve
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CN102563350B (en
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蔡国飙
凌桂龙
张建华
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Beihang University
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Beihang University
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Abstract

The invention discloses a large-sized double-heat-sink closed liquid nitrogen delivery system and a working method of the system. The system comprises a heat sink system, a liquid nitrogen supply system, a subcooler system, a liquid nitrogen pump system, a heat sink inlet pipe system and a heat sink outlet pipe system. The liquid nitrogen supply system stores and supplies liquid nitrogen for the heat sink system; the heat sink inlet pipe system delivers liquid nitrogen to the heat sink system; the heat sink outlet pipe system recovers redundant liquid nitrogen flowing through the heat sink system during precooling of the heat sink system to the liquid nitrogen supply system through the heat sink outlet pipe system; the subcooler system cools liquid nitrogen delivered by all liquid nitrogen heat sinks, so that gaseous nitrogen contained in the delivered liquid nitrogen is liquefied; the liquid nitrogen pump system delivers the cooled liquid nitrogen to the heat sink inlet pipe system, realizes the closed circulating cooling of the heat sink system, and delivers the liquid nitrogen cooled by the subcooler system to the heat sink inlet pipe system, and then the liquid nitrogen enters into all the liquid nitrogen heat sinks. The system and the working method of the system have the advantage of being capable of meeting the requirements of two tests, including a satellite thermal vacuum test and an engine plume test.

Description

Two heat sink enclosed liquid nitrogen transporting systems of large scale and method of work thereof
Technical field
The present invention relates to the vacuum science technical field, specifically, is a kind ofly can take into account satellite thermal vacuum test and motor plume testing simultaneously, and can be liquid nitrogen transporting system and method for work thereof that the double-deck heat sink device of large scale provides liquid nitrogen refrigerating.
Background technique
Vacuum plume effect test system (multi-functional plume testing platform) is the multipurpose testing apparatus, is mainly used in space flight appearance, control thruster plume experimental study, takes into account thermal vacuum tests such as satellite simultaneously.Because the test that the plume testing platform can carry out is of a great variety, need be furnished with the low temperature liquid nitrogen transporting system that component are numerous, pipeline is complicated in the test.
The effect of low temperature liquid nitrogen transporting system mainly is to be the heat sink liquid nitrogen refrigerating that provides in the cabin; Make heat sink temperature be lower than 100K and keep heat sink temperature even; Be used to adsorb gas in the cabin, keep degree of vacuum and low temperature environment in the cabin, be used for space cryogenic vacuum environment that is virtually reality like reality.
At present; Domestic also do not have to carry out the large-scale vacuum environmental-test facility that satellite thermal vacuum test can carry out the motor plume testing again; And traditional low temperature liquid nitrogen transporting system can only provide the simple low temperature liquid nitrogen refrigerating for the individual layer heat sink device, can't realize the liquid nitrogen refrigerating of the double-deck heat sink device of complicated large scale simultaneously.
Summary of the invention
In order to address the above problem; The present invention proposes a kind of two heat sink enclosed liquid nitrogen transporting systems of large scale of taking into account satellite thermal vacuum test and motor plume testing simultaneously, comprises heat-sink system (100), liquid nitrogen supply system (200), subcooler system (300), liquid nitrogen pump system (400), heat sink entrance pipe system (500), heat sink export pipeline system (600).
Heat-sink system (100) comprises gate liquid helium heat sink (101), cabin body anterior liquid helium heat sink (102), body rear portion, cabin liquid helium heat sink (103), the end socket liquid helium is heat sink (104), plume adsorption pump (105), gate liquid nitrogen heat sink (106), the anterior liquid nitrogen heat sink (107) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108), end socket liquid nitrogen heat sink (109); Gate liquid nitrogen heat sink (106), the gate liquid helium is heat sink (101), the anterior liquid nitrogen heat sink (107) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108) are provided with end socket liquid helium heat sink (104), end socket liquid nitrogen heat sink (109) successively from front to back; The anterior liquid helium heat sink (102) of cabin body, body rear portion, cabin liquid helium heat sink (103) are arranged on the anterior liquid nitrogen heat sink (107) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108) inside; Plume adsorption pump (105) is arranged on body rear portion, cabin liquid helium heat sink (103) inside, is used for adsorbing plume gas.
Liquid nitrogen supply system (200) comprises liquid nitrogen storage A (234); Liquid nitrogen storage B (233) and first pneumatic stopping valve (201); Second pneumatic stopping valve (211); First hand stop valve (202); Second hand stop valve (212); The 3rd hand stop valve (221); The 4th hand stop valve (209); The 5th hand stop valve (219); The 6th hand stop valve (206); The 7th hand stop valve (216); The 8th hand stop valve (208); The 9th hand stop valve (218); The tenth hand stop valve (222); The 11 manual stop valve (223); The 12 manual stop valve (224); The 13 hand stop valve (225); The 14 hand stop valve (226); The 15 hand stop valve (227); The 16 hand stop valve (228); First remote pressure gauge (203); Second remote pressure gauge (213); The 3rd remote pressure gauge (231); Primary scene pressure gauge (205); Secondary scene pressure gauge (215); The 3rd on-the-spot pressure gauge (232); First low-temperature solenoid valve (207); Second low-temperature solenoid valve (217); First level meter (204); Second level meter (214); The first low-temperature safety valve (229); The second low-temperature safety valve (230); First vaporizer (210) and second vaporizer (220); Liquid nitrogen storage A outlet valve (235) and liquid nitrogen storage B outlet valve (236).
Wherein, be respectively filling liquid nitrogen in liquid nitrogen storage A (234), the liquid nitrogen storage B (233) through the 15 hand stop valve (227), the 16 hand stop valve (228); Be communicated with through the 3rd hand stop valve (221) between liquid nitrogen storage A (234) and liquid nitrogen storage B (233); The 3rd hand stop valve (221) also is communicated with the outlet of first vaporizer (210) with second vaporizer (220) respectively; First vaporizer (210) also is communicated with liquid nitrogen storage A (234), liquid nitrogen storage B (233) through pipeline respectively with the outlet end of second vaporizer (220); First vaporizer (210) is communicated with liquid nitrogen storage A (234), liquid nitrogen storage B (233) through the 4th hand stop valve (209), the 5th hand stop valve (219) respectively with the inlet of second vaporizer (220); First low-temperature solenoid valve (207) is parallelly connected with the 4th hand stop valve (209) through pipeline; Second low-temperature solenoid valve (217) is parallelly connected with the 5th hand stop valve (219) through pipeline; First remote pressure gauge (203), primary scene pressure gauge (205) are installed on the liquid nitrogen storage A (234), second remote pressure gauge (213) and secondary scene pressure gauge (215) are installed on the liquid nitrogen storage B (233); Also be separately installed with first level meter (204), second level meter (214) on liquid nitrogen storage A (234) and the liquid nitrogen storage B (233); Liquid nitrogen storage A (234) and liquid nitrogen storage B (233) are connected with the tenth hand stop valve (222) and the 11 manual stop valve (223) through pipeline respectively, are communicated with through triplate line between the tenth hand stop valve (222) and the 11 manual stop valve (223); The free end of triplate line finally links to each other with heat sink entrance pipe system (500) through connecting the first low-temperature safety valve (229), the 12 manual stop valve (224), the 13 hand stop valve (225), the second low-temperature safety valve (230) successively; The 13 hand stop valve (225) links to each other with the 3rd remote pressure gauge (231), the 3rd on-the-spot pressure gauge (232) through triplate line; The pipeline its lowest position is equipped with the 14 hand stop valve (226) in the liquid nitrogen supply system (200); First pneumatic stopping valve (201) links to each other with liquid nitrogen storage A (234), liquid nitrogen storage B (233) through pipeline with second pneumatic stopping valve (211); Be respectively time liquid valve of liquid nitrogen storage A (234), liquid nitrogen storage B (233), the unnecessary liquid nitrogen of the heat-sink system (100) of flowing through when being used for being controlled at heat-sink system (100) precooling is recovered to liquid nitrogen storage A (234) and liquid nitrogen storage B (233) through heat sink export pipeline system (600); Liquid nitrogen storage A outlet valve (235) is installed in liquid nitrogen storage A (234) top, is used for the gas release in the liquid nitrogen storage A (234), opens when needing venting, closes at ordinary times; Liquid nitrogen storage B outlet valve (236) is installed in liquid nitrogen storage B (233) top, is used for the gas release in the liquid nitrogen storage B (233), opens when needing venting, closes at ordinary times.
Heat sink entrance pipe system comprises the 17 hand stop valve (501); The 18 hand stop valve (502); The 19 hand stop valve (505); The 20 hand stop valve (506); The 21 manual stop valve (508); The 22 manual stop valve (509); The 23 hand stop valve (514); The 24 hand stop valve (515); The 25 hand stop valve (516); The 26 hand stop valve (517); The 3rd low-temperature safety valve (503); The 4th low-temperature safety valve (507); First pneumatic control valve (504); Second pneumatic control valve (510); The 3rd pneumatic control valve (511); The 4th pneumatic control valve (512); The 5th pneumatic control valve (513); Wherein, first pneumatic control valve (504) is connected to gate liquid helium heat sink (101) inlet through pipeline; Second pneumatic control valve (510) is connected to the anterior liquid helium of cabin body heat sink (102) inlet through pipeline; The 3rd pneumatic control valve (511) is connected to body rear portion, cabin liquid helium heat sink (103) inlet through pipeline; The 4th pneumatic control valve (512) is connected to end socket liquid helium heat sink (104) inlet through pipeline; The 5th pneumatic control valve (513) is connected to plume adsorption pump (105) inlet through pipeline; The 23 hand stop valve (514) institute is connected to gate liquid nitrogen heat sink (106) inlet through pipeline; The 24 hand stop valve (515) place branch road is connected to the anterior liquid nitrogen heat sink of cabin body (107) inlet; The 25 hand stop valve (516) is connected to body rear portion, cabin liquid nitrogen heat sink (108) inlet through pipeline; The 26 hand stop valve (517) is connected to end socket liquid nitrogen heat sink (109) inlet through pipeline; The 17 hand stop valve (501) is the master control valve of the heat sink and plume adsorption pump of each liquid helium.The 17 hand stop valve (501) one ends link to each other with the middle liquid nitrogen delivery line of liquid nitrogen supply system (200), and the other end connects three branch roads at the 18 hand stop valve (502), the 3rd pneumatic control valve (504), the 19 hand stop valve (505) place respectively; Wherein, four branch roads of the 18 hand stop valve (502) through pipeline and second pneumatic control valve (510), the 3rd pneumatic control valve (511), the 4th pneumatic control valve (512), the 5th pneumatic control valve (513) the place UNICOMs that enter the mouth; The 19 hand stop valve (505) links to each other with the 23 hand stop valve (514), the 24 hand stop valve (515), the 25 hand stop valve (516), the 26 hand stop valve (517) through gate liquid nitrogen heat sink (106) entrance pipe, anterior liquid nitrogen heat sink (107) entrance pipe of cabin body, body rear portion, cabin liquid nitrogen heat sink (108) entrance pipe and end socket liquid nitrogen heat sink (109) entrance pipe respectively, thus gate liquid helium heat sink (101) inlet and each liquid nitrogen heat sink is entered the mouth through pipeline UNICOM; The 20 hand stop valve (506) through pipeline with anterior liquid nitrogen heat sink (107) entrance pipe of cabin body, body rear portion, cabin liquid nitrogen heat sink (108), the end socket liquid helium is heat sink (104) entrance pipe and each liquid nitrogen heat sink entrance pipe UNICOM; The 21 manual stop valve (508) links to each other through the entrance pipe that the blowing pipeline is connected to second pneumatic control valve (510), the 3rd pneumatic control valve (511), the 4th pneumatic control valve (512), the 5th pneumatic control valve (513); The 22 manual stop valve (509) one ends are connected to the entrance pipe of second pneumatic control valve (510), the 3rd pneumatic control valve (511), the 4th pneumatic control valve (512), the 5th pneumatic control valve (513) through pipeline, and the other end is connected directly to atmosphere through pipeline; The 3rd low-temperature safety valve (503) is installed on gate liquid helium heat sink (101) entrance pipe, and the 4th low-temperature safety valve (507) is installed in and blows down on the pipeline.
Heat sink export pipeline system (600) comprises the 27 hand stop valve (602); The 28 hand stop valve (606); The 29 hand stop valve (613); The 30 hand stop valve (614); The 31 manual stop valve (615); The 32 manual stop valve (618); The 33 hand stop valve (621); The 34 hand stop valve (622); The 35 hand stop valve (623); The 36 hand stop valve (625); The 37 hand stop valve (626); The 38 hand stop valve (628); The 39 hand stop valve (630); First low-reading thermometer (601); Second low-reading thermometer (607); The 3rd low-reading thermometer (608); The 4th low-reading thermometer (609); The 5th low-reading thermometer (610); The 6th low-reading thermometer (611); The 7th low-reading thermometer (612); The 8th low-reading thermometer (632); The 5th low-temperature safety valve (605); The 6th low-temperature safety valve (616); The 7th low-temperature safety valve (617); The 8th low-temperature safety valve (624); The 9th low-temperature safety valve (627); The tenth low-temperature safety valve (629); The 11 low-temperature safety valve (631); The 4th remote pressure gauge (603); The 5th remote pressure gauge (619); The 4th on-the-spot pressure gauge (604); The 5th on-the-spot pressure gauge (620) and the 6th pneumatic control valve (633); Wherein, The 28 hand stop valve (606) one ends are through the straight-through atmosphere of pipeline; The other end connects liquid helium heat sink (101) outlet to the gate of the 5th low-temperature safety valve (605), the 27 hand stop valve (602), the 4th remote pressure gauge (603) in order through pipeline, forms gate liquid helium heat sink (101) outlet discharge pipe; The 27 hand stop valve (602) also links to each other with the 4th on-the-spot pressure gauge (604), first low-reading thermometer (601); The 33 hand stop valve (621) one ends are through the straight-through atmosphere of pipeline; After the other end connects the 32 manual stop valve (618), the 7th low-temperature safety valve (617) in order through pipeline; Be connected with six road pipelines respectively, the first via is connected to the anterior liquid helium of cabin body heat sink (102) outlet through second low-reading thermometer (607); The second the tunnel is connected to body rear portion, cabin liquid helium heat sink (103) through the 3rd low-reading thermometer (608) exports; Third Road is connected to end socket liquid helium heat sink (104) outlet through the 4th low-reading thermometer (609); The four the tunnel is connected to the big tube of plume adsorption pump (105) through the 29 hand stop valve (613), the 5th low-reading thermometer (610) exports; The five the tunnel is connected to the middle tube of plume adsorption pump (105) through the 30 hand stop valve (614), the 6th low-reading thermometer (611) exports; LIULUTONG is crossed the 31 manual stop valve (615), the 7th low-reading thermometer (612) is connected to the little tube outlet of plume adsorption pump (105); Said 32 manual stop valves (618) link to each other with the 5th remote pressure gauge (619), the 5th on-the-spot pressure gauge (620); The 6th pneumatic control valve (633) one ends are through the straight-through atmosphere of pipeline; The other end is connected with four road pipelines respectively after connecting the 8th low-reading thermometer (632), the 11 low-temperature safety valve (631), the 39 hand stop valve (630), the tenth low-temperature safety valve (629), the 38 hand stop valve (628), the 9th low-temperature safety valve (627) in order through pipeline, and four road pipelines are connected to gate liquid nitrogen heat sink (106), the anterior liquid nitrogen heat sink (107) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108), end socket liquid nitrogen heat sink (109) respectively; Through the 34 hand stop valve (622) the outlet discharge pipe of the outlet discharge pipe of the outlet discharge pipe of gate liquid helium heat sink (101), the anterior liquid helium of cabin body heat sink (102), body rear portion, cabin liquid helium heat sink (103), the end socket liquid helium is heat sink (104) outlet discharge pipe and the outlet discharge pipe of plume adsorption pump (105) are communicated with; Through the 35 hand stop valve (623), the 8th low-temperature safety valve (624), the 37 hand stop valve (626) is heat sink with each liquid helium, the outlet discharge pipe of plume adsorption pump and each liquid nitrogen heat sink is communicated with and forms pipe network system; Concrete Placement is: the 35 hand stop valve (623) one ends are communicated with the outlet discharge pipe of plume adsorption pump (105) through pipeline, and the other end connects the 8th low-temperature safety valve (624), the 37 hand stop valve (626) in order through pipeline and is connected between the 38 hand stop valve (628) and the tenth low-temperature safety valve (629) on the pipeline; The 8th low-temperature safety valve (624) is installed on the pipeline between the 35 hand stop valve (623) and the 37 hand stop valve (626); The 36 hand stop valve (625) one ends are connected between the 35 hand stop valve (623) and the 37 hand stop valve (626), and the other end leads directly to atmosphere; The 6th low-temperature safety valve (616) is installed on the 21 manual stop valve (615) entrance pipe; Pipeline between the 6th pneumatic control valve (633) and the 11 low-temperature safety valve (631) links to each other with second pneumatic stopping valve (221) with first pneumatic stopping valve (201) in the liquid nitrogen supply system (200).
Said subcooler system (300) comprises subcooler (316) and the 40 hand stop valve (301); The 41 manual stop valve (302); The 42 manual stop valve (305); The 43 hand stop valve (311); The 44 hand stop valve (312); The 45 hand stop valve (314); The 46 hand stop valve (315); The 9th low-reading thermometer (303); The tenth low-reading thermometer (313); The 7th pneumatic control valve (304); The 6th remote pressure gauge (306); The 7th remote pressure gauge (308); The 6th on-the-spot pressure gauge (307); The 7th on-the-spot pressure gauge (309) and the 3rd level meter (310); Wherein, The 40 hand stop valve (301) is the feed liquor and the make-up valve of subcooler system (300); The first low-temperature safety valve (229) is communicated with liquid nitrogen delivery line between the 12 manual stop valve (224) in one end and the liquid nitrogen supply system (200), and the other end is communicated with the interior supercooling tube road liquid feeding end of subcooler (316) main body through pipeline; The 9th low-reading thermometer (303) is arranged on ingress, supercooling tube road; The 7th pneumatic control valve (304) one ends are communicated with through the liquid nitrogen delivery line between the first low-temperature safety valve (229), the 12 manual stop valve (224) in pipeline and the liquid nitrogen supply system (200); The 3rd level meter (310) is installed on the subcooler (316); The 6th remote pressure gauge (306) is connected to outlet port, supercooling tube road with the 6th on-the-spot pressure gauge (307) through the 42 manual stop valve (305); On subcooler (316) main body, the 43 hand stop valve (311) is installed; On subcooler (316) main body, the 44 hand stop valve (312) is installed also; The 46 hand stop valve (315) is connected to outlet port, supercooling tube road through pipeline, and the 46 hand stop valve (315) also is connected in liquid nitrogen pump system (400) and the heat sink export pipeline system (600) between the 11 low-temperature safety valve (631) and the 39 hand stop valve (630) on the pipeline through pipeline; The 45 hand stop valve (314) one ends are connected on the 44 hand stop valve (312) and the intersubjective pipeline of subcooler (316) through pipeline, and the other end is connected on the pipeline between the 46 hand stop valve (315) and the heat sink export pipeline system (600); The tenth low-reading thermometer (313) is arranged on outlet port, supercooling tube road; The 41 manual stop valve (302) one ends are communicated with ingress, supercooling tube road through pipeline, and the other end is connected in the heat sink export pipeline system (600) on the pipeline between the 39 hand stop valve (630) and the tenth low-temperature safety valve (629) through pipeline.
Liquid nitrogen pump system (400) comprises fine filter (401); Liquid nitrogen pump A (407); Liquid nitrogen pump B (418); The 47 hand stop valve (403); The 48 hand stop valve (406); The 49 hand stop valve (408); The 50 hand stop valve (409); The 51 manual stop valve (410); The 52 manual stop valve (413); The 53 hand stop valve (417); The 54 hand stop valve (420); The 55 hand stop valve (419); The 12 low-temperature safety valve (402); The 13 low-temperature safety valve (416); The 11 low-reading thermometer (411); The 8th remote pressure gauge (404); The 9th remote pressure gauge (414); The 8th on-the-spot pressure gauge (405); The 9th on-the-spot pressure gauge (415); Low temperature flowmeter (412); Wherein, fine filter (401) is installed in liquid nitrogen pump system (400) entrance pipe place; Fine filter (401) one ends link to each other through the 46 hand stop valve (315) in pipeline and the subcooler system (300); Fine filter (401) the other end is equipped with the four-way pipeline; The first via connects the 48 hand stop valve (406), liquid nitrogen pump A (407), the 49 hand stop valve (408), the 50 hand stop valve (409) in order through pipeline; The second the tunnel connects the 53 hand stop valve (417), liquid nitrogen pump B (418), the 55 hand stop valve (419), the 54 hand stop valve (420) in order through pipeline; Third Road connects the 51 manual stop valve (410) through pipeline, and the three-way connection (pipe) road is connected in parallel to low temperature flowmeter (412) ingress through the four-way pipeline; The 8th remote pressure gauge (404) and the 8th on-the-spot pressure gauge (405) are installed in liquid nitrogen pump A (407), liquid nitrogen pump B (418) ingress, by the 47 hand stop valve (403) control start and stop.The 9th remote pressure gauge (414) and the 9th on-the-spot pressure gauge (415) are installed in liquid nitrogen pump A (407), liquid nitrogen pump B (418) outlet port, by the 52 manual stop valve (413) control start and stop; Liquid nitrogen pump A (407), liquid nitrogen pump B (418) two ends are equipped with the 48 hand stop valve (406), the 53 hand stop valve (417), the 50 hand stop valve (409), the 54 hand stop valve (420); The 11 low-reading thermometer (411) is installed on the export pipeline of liquid nitrogen pump A (407) and liquid nitrogen pump B (418); Low temperature flowmeter (412) is located on the export pipeline of liquid nitrogen pump A (407) and liquid nitrogen pump B (418); The 12 low-temperature safety valve (402), the 13 low-temperature safety valve (416) are installed in respectively on liquid nitrogen pump A (407) and liquid nitrogen pump B (418) the entrance and exit pipeline.
Carry out the motor plume testing through above-mentioned liquid nitrogen transporting system and comprise following step:
Step 1: liquid nitrogen storage A (234) liquid nitrogen filling;
Open the 15 hand stop valve (227) and accomplish the liquid nitrogen filling of liquid nitrogen storage A (234), liquid nitrogen storage B (233) does not annotate;
Step 2: subcooler (316) main body liquid nitrogen filling;
Open the tenth hand stop valve (222), the 7th pneumatic control valve (304) and the 43 hand stop valve (311) successively and accomplish the liquid nitrogen filling of liquid nitrogen subcooler (316) main body; Crack the 7th pneumatic control valve of filling initial stage (304); Utilize the cold nitrogen of initial stage evaporation fully to blow down the air in subcooler (316) main body; Standard-sized sheet the 7th pneumatic control valve (304) and quick filling are up to specifying liquid level then; And according to the numerical value of the 3rd level meter (310), the aperture of remote adjustment the 7th pneumatic control valve (304) is to keep the constant of liquid level;
Step 3: each liquid nitrogen heat sink precooling;
Open the 40 hand stop valve (301), the 51 manual stop valve (410), the 23 hand stop valve (514), the 24 hand stop valve (515), the 25 hand stop valve (516), the 26 hand stop valve (517), the 38 hand stop valve (628), the 39 hand stop valve (630), the 6th pneumatic control valve (633) successively; Make liquid nitrogen enter into subcooler (316) internal pipeline; Utilizing the liquid nitrogen in subcooler (316) main body is through the liquid nitrogen cooling in subcooler (316) internal pipeline; Liquid nitrogen after the cooling enters into liquid nitrogen pump system (400) with subcooler (316) export pipeline; After entering into liquid nitrogen transporting system (500) at last; Realization is carried out precooling (cooling procedure from normal temperature to 77K) to gate liquid nitrogen heat sink (106), the anterior liquid nitrogen heat sink (107) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108), end socket liquid nitrogen heat sink (109), and this process forms the open type precooling of each liquid nitrogen heat sink;
Step 4: each liquid helium is heat sink and plume adsorption pump (105) precooling;
Each liquid helium is heat sink and (105) precooling of plume adsorption pump and liquid nitrogen heat sink precooling are carried out simultaneously; Open the 12 manual stop valve (224), the 17 hand stop valve (501), 18 hand stop valves (502), first pneumatic control valve (504), second pneumatic control valve (510), the 3rd pneumatic control valve (511), the 4th pneumatic control valve (512), the 5th pneumatic control valve (513), the 34 hand stop valve (622), the 35 hand stop valve (623), the 37 hand stop valve (626) successively; To gate liquid helium heat sink (101), cabin body anterior liquid helium heat sink (102), body rear portion, cabin liquid helium heat sink (103), the end socket liquid helium is heat sink (104), plume adsorption pump (105) carries out precooling (cooling procedure from normal temperature to 77K), this process forms the open type precooling of the heat sink and plume adsorption pump (105) of each liquid helium;
Step 5: liquid nitrogen storage A (234) is to the metaideophone (pouring in down a chimney) of liquid nitrogen storage B (233);
Make full use of the low temperature nitrogen cold simultaneously for saving liquid nitrogen consumption; When beginning, precooling can directly close the 6th pneumatic control valve (633) (no matter whether the outlet port runs liquid); Open second pneumatic stopping valve (211), second hand stop valve (212) of liquid nitrogen storage B (233) simultaneously; Utilize low temperature nitrogen precooling liquid nitrogen storage B (233) and reclaim unnecessary liquid nitrogen; All gas is all got rid of through nitrogen storage tank B outlet valve (236), and this process forms by liquid nitrogen metaideophone (pour in down a chimney) process of liquid nitrogen storage A (234) to liquid nitrogen storage B (233);
Step 6: liquid nitrogen storage B (233) is to the metaideophone (pouring in down a chimney) of liquid nitrogen storage A (234);
At each liquid helium in heat sink and plume adsorption pump (105) precooling process; When liquid nitrogen storage A (234) liquid nitrogen is exhausted; Close the tenth hand stop valve (222), second pneumatic stopping valve (211) (second hand stop valve (212) is often opened and got final product); Open the 11 manual stop valve (223), first pneumatic stopping valve (201), first hand stop valve (202), form by liquid nitrogen metaideophone (pouring in down a chimney) process of liquid nitrogen storage B (233) to liquid nitrogen storage A (234);
Step 7: heat-sink system (100) temperature regulation;
Each liquid nitrogen heat sink, liquid helium is heat sink and plume adsorption pump (105) precooling process in; Regulate each heat sink cooling rate through the liquid nitrogen supply; To guarantee that each is heat sink even with plume adsorption pump (105) temperature; Utilize the 23 hand stop valve (514) to regulate gate liquid nitrogen heat sink (106) temperature; Utilize the 24 hand stop valve (515) to regulate anterior liquid nitrogen heat sink (107) temperature of cabin body; Utilize the 25 hand stop valve (516) to regulate body rear portion, cabin liquid nitrogen heat sink (108) temperature, utilize the 26 hand stop valve (517) to regulate end socket liquid nitrogen heat sink (109) temperature, utilize first pneumatic control valve (504) to regulate gate liquid helium heat sink (101) temperature; Second pneumatic control valve (510) is regulated anterior liquid helium heat sink (102) temperature of cabin body; Utilize the 3rd pneumatic control valve (511) to regulate body rear portion, cabin liquid helium heat sink (103) temperature, utilize the 4th pneumatic control valve (512) to regulate end socket liquid helium heat sink (104) temperature, utilize five pneumatic control valves (513), the 29 hand stop valve (613), the 30 hand stop valve (614), the 31 manual stop valve (615) to regulate plume adsorption pump (105) temperature;
Step 8: the closed cycle of each liquid nitrogen heat sink;
Treat each liquid nitrogen heat sink, after each liquid helium is heat sink and plume adsorption pump (105) temperature reduces to liquid nitrogen temperature 77K; Each liquid nitrogen heat sink can get into closed cycle; At first; Open the 48 hand stop valve (406), the 49 hand stop valve (408) to the logical liquid nitrogen precooling of liquid nitrogen pump A (407); When there is the liquid nitrogen ejection in the 49 hand stop valve (408) outlet port (rule of thumb precooling got final product in about 15 minutes); Close the 49 hand stop valve (408), the 51 manual stop valve (410), open the 50 hand stop valve (409) simultaneously, accomplish the startup of liquid nitrogen pump A (407); Secondly; Close the 39 hand stop valve (630) (aperture undertaken or according to practical adjustments) gradually, open the 41 manual stop valve (302) simultaneously gradually (aperture undertaken or according to practical adjustments), accomplish each liquid nitrogen heat sink by the transition of open type precooling to closed cycle by 30%, 50%, 100% by 70%, 50%, 0%, get into closed cycle after crack the 46 hand stop valve (315) supply system pipeline venting usefulness;
Step 9: stop the liquid nitrogen supply of the heat sink and plume adsorption pump (105) of each liquid helium;
After treating that each liquid nitrogen heat sink gets into closed cycle fully, close the liquid nitrogen conveying that the 17 hand stop valve (501) stops and plume adsorption pump (105) heat sink to each liquid helium.
Carry out satellite thermal vacuum test through above-mentioned liquid nitrogen transporting system and comprise following step:
Step 1: liquid nitrogen storage A (234) liquid nitrogen filling;
Open the 15 hand stop valve (227) and accomplish the liquid nitrogen filling of liquid nitrogen storage A (234), liquid nitrogen storage B (233) does not annotate;
Step 2: subcooler (316) main body liquid nitrogen filling;
Open the tenth hand stop valve (222), the 7th pneumatic control valve (304) and the 43 hand stop valve (311) successively and accomplish the liquid nitrogen filling of liquid nitrogen subcooler (316) main body; Crack the 7th pneumatic control valve of filling initial stage (304); Utilize the cold nitrogen of initial stage evaporation fully to blow down the air in subcooler (316) main body; Standard-sized sheet the 7th pneumatic control valve (304) and quick filling are up to specifying liquid level then; And according to the numerical value of the 3rd level meter (310), the aperture of remote adjustment the 7th pneumatic control valve (304) is to keep the constant of liquid level;
Step 3: each liquid helium is heat sink and plume adsorption pump (105) precooling;
Open the 40 hand stop valve (301), the 51 manual stop valve (410), the 19 hand stop valve (505), the 20 hand stop valve (506), first pneumatic control valve (504), second pneumatic control valve (510), the 3rd pneumatic control valve (511), the 4th pneumatic control valve (512), the 5th pneumatic control valve (513), the 34 hand stop valve (622), the 35 hand stop valve (623), the 37 hand stop valve (626), the 39 hand stop valve (630), the 6th pneumatic control valve (633) successively; Make liquid nitrogen enter into subcooler (316) internal pipeline; Utilizing the liquid nitrogen in subcooler (316) main body is through the liquid nitrogen cooling in subcooler (316) internal pipeline; Liquid nitrogen after the cooling enters into liquid nitrogen pump system (400) with subcooler (316) export pipeline; After entering into liquid nitrogen transporting system (500) at last; Realization to gate liquid helium heat sink (101), cabin body anterior liquid helium heat sink (102), body rear portion, cabin liquid helium heat sink (103), the end socket liquid helium is heat sink (104), plume adsorption pump (105) carries out precooling (cooling procedure from normal temperature to 77K), this process forms the open type precooling of the heat sink and plume adsorption pump (105) of each liquid helium;
Step 4: liquid nitrogen storage A (234) is to metaideophone (pouring in down a chimney) process of liquid nitrogen storage B (233);
Make full use of the low temperature nitrogen cold simultaneously for saving liquid nitrogen consumption; When beginning, precooling can directly close the 6th pneumatic control valve (633) (no matter whether the outlet port runs liquid); Open second pneumatic stopping valve (211), second hand stop valve (212) of liquid nitrogen storage B (233) simultaneously; Utilize low temperature nitrogen precooling liquid nitrogen storage B (233) and reclaim unnecessary liquid nitrogen; All gas is all got rid of through nitrogen storage tank B outlet valve (236), and this process forms by liquid nitrogen metaideophone (pour in down a chimney) process of liquid nitrogen storage A (234) to liquid nitrogen storage B (233);
Step 5: liquid nitrogen storage B (233) is to metaideophone (pouring in down a chimney) process of liquid nitrogen storage A (234);
At each liquid helium in heat sink and plume adsorption pump (105) precooling process; When liquid nitrogen storage A (234) liquid nitrogen is exhausted; Close the tenth hand stop valve (222), second pneumatic stopping valve (211) (second hand stop valve (212) is often opened and got final product); Open the 11 manual stop valve (223), first pneumatic stopping valve (201), first hand stop valve (202), form by liquid nitrogen metaideophone (pouring in down a chimney) process of liquid nitrogen storage B (233) to liquid nitrogen storage A (234);
Step 6: each liquid helium is heat sink and the temperature regulation of plume adsorption pump (105);
Each liquid helium is heat sink and plume adsorption pump (105) precooling precooling process in regulate each heat sink cooling rate through the liquid nitrogen supply; Heat sink even to guarantee each liquid helium with plume adsorption pump (105) temperature; Utilize the 3rd pneumatic control valve (504) to regulate gate liquid helium heat sink (101) temperature; Utilize second pneumatic control valve (510) to regulate anterior liquid helium heat sink (102) temperature of cabin body; Utilize the 3rd pneumatic control valve (511) to regulate body rear portion, cabin liquid helium heat sink (103) temperature; Utilize the 4th pneumatic control valve (512) to regulate heat sink 104 temperature of end socket liquid helium, utilize the 5th pneumatic control valve (513), the 29 hand stop valve (613), the 30 hand stop valve (614), the 31 manual stop valve (615) to regulate plume adsorption pump (105) temperature;
Step 7: each liquid helium is heat sink and the closed cycle of plume adsorption pump (105);
Treat that each liquid helium is heat sink, after plume adsorption pump (105) temperature reduces to liquid nitrogen temperature 77K; Can get into closed cycle; At first; Open the 48 hand stop valve (406), the 49 hand stop valve (408) to the logical liquid nitrogen precooling of liquid nitrogen pump A (407), when there is the liquid nitrogen ejection in the 49 hand stop valve (408) outlet port (rule of thumb precooling got final product in about 15 minutes), close the 49 hand stop valve (408), the 51 manual stop valve (410); Open the 50 hand stop valve (409) simultaneously; Accomplish the startup of liquid nitrogen pump A (407), secondly, close the 39 hand stop valve (630) (aperture undertaken or according to practical adjustments) gradually, open the 41 manual stop valve (302) simultaneously gradually (aperture undertaken or according to practical adjustments) by 30%, 50%, 100% by 70%, 50%, 0%; Accomplish that each is heat sink by the transition of open type precooling to closed cycle, get into closed cycle after crack the 46 hand stop valve (315) supply the system pipeline venting to use.
The invention has the advantages that:
1, the two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention can provide liquid nitrogen refrigerating for the double-deck heat sink device of large scale simultaneously;
2, the two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention can satisfy satellite thermal vacuum test and two kinds of test demands of motor plume testing simultaneously;
When 3, carrying out satellite thermal vacuum test through the two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention, can be that the internal layer liquid helium is heat sink to provide the liquid nitrogen precooling to 77K and keep constant, this moment, outer liquid nitrogen heat sink can obstructed liquid nitrogen precooling (not working);
When 4, carrying out the motor plume testing through the two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention, can be that the internal layer liquid helium is heat sink to provide the liquid nitrogen precooling to 80K, can be outer liquid nitrogen heat sink provides the liquid nitrogen precooling to 77K and keep constant;
5, the heat sink and outer liquid nitrogen heat sink of internal layer liquid helium all can simultaneously or link to each other with the low temperature liquid nitrogen transporting system separately in the two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention, constitutes closed circulation system;
6, the two heat sink enclosed liquid nitrogen transporting systems of the large scale of the present invention maximum heating load that can satisfy test requirements document is 60kW, can carry out the high heat load test;
7, the two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention adopt liquid nitrogen pump supercharging type sealing and circulating, are fit to long-play, can fully guarantee the uniformity of heat sink temperature, reduce liquid nitrogen consumption, reduce the test run expense;
8, in the two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention during heat sink precooling; Before liquid nitrogen gets into heat-sink system; Employing gets into heat sink mode after letting liquid nitrogen be introduced into subcooler; Realize the synchronous precooling of heat sink and subcooler, avoided the trouble of the traditional last precooling liquid nitrogen pump of the heat sink precooling again of first precooling subcooler, practiced thrift whole transporting system working time;
9, each heat sinkly all is furnished with corresponding bye-pass valve system in the two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention, realizes independent feed flow and adjusting, guarantee heat sink temperature evenly;
10, in the two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention, liquid nitrogen storage and liquid nitrogen pump all have two, backup each other, and when one of them damages, do not influence system's proper functioning.
Description of drawings
Fig. 1 is the structural representation of the two heat sink enclosed liquid nitrogen transporting systems of large scale provided by the invention;
Fig. 2 is the workflow diagram of liquid nitrogen transporting system of the present invention when carrying out the motor plume testing;
Fig. 3 is the workflow diagram of liquid nitrogen transporting system of the present invention when carrying out satellite thermal vacuum test.
Among the figure:
The supply of 100-heat-sink system 200-liquid nitrogen is that the 300-subcooler is the heat sink inlet duct of the 400-liquid nitrogen pump 500-of system
Road system completely
Body rear portion, the anterior 103-cabin of the hot 102-of export pipeline 101-gate liquid helium cabin body liquid 104-end socket liquid helium heat that 600-is heat sink
The heavy heat sink helium of liquid helium of system is heat sink heavy
Body rear portion, the anterior 108-cabin of the hot 107-of 105-plume adsorption pump 106-gate liquid nitrogen cabin body liquid 109-end socket liquid nitrogen heat
It is heavy that heavy liquid nitrogen heat sink nitrogen is heat sink
234-liquid nitrogen storage A 233-liquid nitrogen storage B 316-subcooler 401-fine filter 407-liquid nitrogen pump A
418-liquid nitrogen pump B 202-first manually cuts 212-second manual 221-the 3rd manual 209-the 4th of cutting and manually cuts
Only the valve stop valve ends valve and ends valve
219-the 5th manually manually cuts 216-the 7th manual 208-the 8th manual 218-the 9th of cutting by 206-the 6th and manually cuts
Valve ends the valve stop valve and ends valve and end valve
It is manual that 222-the tenth manually cuts 223-the 11 manual 224-the tenth second-hand 225-the 13 manual 226-the 14
Valve is by valve actuation stop valve stop valve stop valve
It is manual that 227-the 15 manually cuts 228-the 16 manual 501-the 17 hand 502-the 18 manual 505-the 19
End valve by valve actuation stop valve stop valve stop valve
506-the 20 manually cuts 508-the 20 509-the 22 514-the 23 hand 515-the 24 hand on the other hand
It is moving by the valve actuation stop valve to end valve actuation stop valve hand stop valve
516-the 25 manual 517-the 26 hand 602-the 27 606-the 28 hand 613-the 29 hand
Moving by valve actuation stop valve hand stop valve by the valve actuation stop valve
614-the 30 manually cuts 615-the 30 618-the 32 621-the 33 hand 622-the 34 hand on the other hand
It is moving by the valve actuation stop valve to end valve actuation stop valve hand stop valve
623-the 35 manual 625-the 36 hand 626-the 37 628-the 38 hand 630-the 39 hand
Moving by valve actuation stop valve hand stop valve by the valve actuation stop valve
301-the 40 manually cuts 302-the 40 305-the 42 311-the 43 hand 312-the 44 hand on the other hand
It is moving by the valve actuation stop valve to end valve actuation stop valve hand stop valve
314-the 45 manual 315-the 46 hand 403-the 47 406-the 48 hand 408-the 49 hand
Moving by valve actuation stop valve hand stop valve by the valve actuation stop valve
409-the 50 manually cuts 410-the 50 413-the 52 417-the 53 hand 420-the 54 hand on the other hand
It is moving by the valve actuation stop valve to end valve actuation stop valve hand stop valve
419-the 55 manual 229-first low temperature peace 230-second low temperature 503-the 3rd low temperature peace 507-the 4th low temperature peace
The full valve of the stop valve full valve of full valve safety valve
605-the 5th low-temperature safety 616-the 6th low temperature peace 617-the 7th low temperature 624-the 8th low temperature peace 627-the 9th low temperature peace
The full valve of the valve full valve of full valve safety valve
629-the tenth low-temperature safety 631-the 11 low temperature 402-the 12 low 416-the 13 low temperature 504-first pneumatic accent
Valve safety valve temperature safety valve safety valve joint valve
510-second pneumatic adjusting 511-the 3rd pneumatic accent 512-the 4th pneumatic 513-the 5th pneumatic accent 633-the 6th pneumatic accent
Valve joint valve regulation valve joint valve joint valve
304-the 7th pneumatic adjusting 601-first low temperature temperature 607-second low temperature 608-the 3rd low temperature temperature 609-the 4th low temperature temperature
Valve degree meter thermometer degree meter degree meter
610-the 5th cryogenic temperature 611-the 6th low temperature temperature 612-the 7th low temperature 632-the 8th low temperature temperature 303-the 9th low temperature temperature
Meter degree meter thermometer degree meter degree meter
Second pneumatic section 207-of 313-the tenth cryogenic temperature 411-the 11 low temperature 201-first pneumatic 211-, first low temperature
Meter thermometer stop valve ends the valve magnet valve
The 217-second low temperature electromagnetism 204-first level meter 214-second liquid level 310-the 3rd level meter 203-first long-range pressure
Valve dynamometric table
The 213-second remote pressure 231-the 3rd long-range pressure 603-the 4th long-range 619-the 5th long-range pressure 306-the 6th long-range pressure
Table power manometer pressure Biao Libiaolibiao
308-the 7th remote pressure 404-the 8th long-range pressure 414-the 9th long-range 205-primary scene presses the 215-secondary scene to press
Table power manometer pressure Biao Libiaolibiao
232-the 3rd on-the-spot pressure 604-the 4th on-the-spot 620-of pressure the 5th on-the-spot 307-the 6th on-the-spot 309-of pressure the 7th on-the-spot the pressure
Table power manometer pressure Biao Libiaolibiao
405-the 8th on-the-spot pressure 415-the 9th on-the-spot 412-low temperature flow 235-liquid nitrogen storage A 236-liquid nitrogen storage B that presses
Biao Libiao meter outlet valve outlet valve
The 210-first vaporizer 220-second vaporizer
Embodiment
To combine accompanying drawing and embodiment that the present invention is done further detailed description below.
The two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention, as shown in Figure 1, comprise heat-sink system 100, liquid nitrogen supply system 200, subcooler system 300, liquid nitrogen pump system 400, heat sink entrance pipe system 500, heat sink export pipeline system 600.
As shown in Figure 1, heat-sink system 100 comprises that the gate liquid helium is heat sink 101, body anterior liquid helium in cabin is heat sink 102, body rear portion, cabin liquid helium is heat sink 103, the end socket liquid helium is heat sink 104, plume adsorption pump 105, gate liquid nitrogen heat sink 106, the anterior liquid nitrogen heat sink 107 of cabin body, body rear portion, cabin liquid nitrogen heat sink 108, end socket liquid nitrogen heat sink 109.Wherein, gate liquid nitrogen heat sink 106, the gate liquid helium is heat sink 101, end socket liquid nitrogen heat sink 109 is the circular arc disk construction with end socket liquid helium heat sink 104; The anterior liquid nitrogen heat sink 107 of cabin body, body anterior liquid helium in cabin is heat sink 102, body rear portion, cabin liquid nitrogen heat sink 108 is columnar structured with body rear portion, cabin liquid helium heat sink 103.Gate liquid nitrogen heat sink 106, the gate liquid helium is heat sink 101, the anterior liquid nitrogen heat sink 107 of cabin body, body rear portion, cabin liquid nitrogen heat sink 108 and end socket liquid helium are heat sink 104, end socket liquid nitrogen heat sink 109 is provided with successively from front to back.Body anterior liquid helium in cabin is heat sink 102, body rear portion, cabin liquid helium heat sink 103 is arranged on the anterior liquid nitrogen heat sink 107 of cabin body, liquid nitrogen heat sink 108 inside, body rear portion, cabin.Plume adsorption pump 105 is arranged on heat sink 103 inside of liquid helium, body rear portion, cabin, is used for adsorbing plume gas.On spatial structure, above-mentioned all liquid heliums are heat sink all to be positioned at all liquid nitrogen heat sinks inside, by the liquid nitrogen heat sink parcel, constitutes double-deck heat sink structure thus.
Liquid nitrogen supply system 200 is used for storage and supply with heat-sink system 100 required liquid nitrogen, comprises the on-the-spot pressure gauge of the manual stop valve of the manual stop valve of liquid nitrogen storage A234, liquid nitrogen storage B233 and first pneumatic stopping valve 201, second pneumatic stopping valve 211, first hand stop valve 202, second hand stop valve 212, the 3rd hand stop valve 221, the 4th hand stop valve 209, the 5th hand stop valve 219, the 6th hand stop valve 206, the 7th hand stop valve 216, the 8th hand stop valve 208, the 9th hand stop valve 218, the tenth hand stop valve the 222, the 11 the 223, the 12 the 224, the 13 hand stop valve the 225, the 14 hand stop valve the 226, the 15 hand stop valve the 227, the 16 hand stop valve 228, first remote pressure gauge 203, second remote pressure gauge 213, the 3rd remote pressure gauge 231, primary scene pressure gauge 205, secondary scene pressure gauge the 215, the 3rd 232, first low-temperature solenoid valve 207, second low-temperature solenoid valve 217, first level meter 204, second level meter 214, the first low-temperature safety valve 229, the second low-temperature safety valve 230, first vaporize 210 and second vaporizer 220, liquid nitrogen storage A outlet valve 235 and liquid nitrogen storage B outlet valve 236.Wherein, liquid nitrogen storage A234, liquid nitrogen storage B233 backup each other, and feed flow or feed flow simultaneously separately are respectively the liquid nitrogen of annotating in liquid nitrogen storage A234, the liquid nitrogen storage B233 through the 15 hand stop valve the 227, the 16 hand stop valve 228; Because liquid nitrogen storage A234 and liquid nitrogen storage B233 are not separate; Therefore be communicated with through the 3rd hand stop valve 221 between liquid nitrogen storage A234 and liquid nitrogen storage B233; Utilize law of connected vessels to guarantee that liquid nitrogen storage A234 is identical with the liquid supply pressure of liquid nitrogen storage B233, realize the stable of liquid nitrogen supply system 200 liquid supply pressures; The 3rd hand stop valve 221 also is communicated with the outlet of second vaporizer 220 with first vaporizer 210 respectively, and first vaporizer 210 also is communicated with liquid nitrogen storage A234, liquid nitrogen storage B233 top through pipeline respectively with the outlet end of second vaporizer 220; The inlet of first vaporizer 210 and second vaporizer 220 is communicated with liquid nitrogen storage A234, liquid nitrogen storage B233 through the 4th hand stop valve 209, the 5th hand stop valve 219 respectively.The 6th hand stop valve 206 through pipeline connect first low-temperature solenoid valve 207 in order, the 8th hand stop valve 208 forms one the tunnel, and is and parallelly connected with the 4th hand stop valve 209; The 7th hand stop valve 216 through pipeline connect second low-temperature solenoid valve 217 in order, the 9th hand stop valve 218 forms one the tunnel, and is and parallelly connected with the 5th hand stop valve 219; Wherein, first low-temperature solenoid valve 207, second low-temperature solenoid valve 217 are respectively applied for control liquid nitrogen storage A234, liquid nitrogen storage B233 and carry liquid nitrogen to first vaporizer 210, second vaporization 220, but remote auto control is easy to operate; The 6th hand stop valve 206, the 7th hand stop valve 216 and the 8th hand stop valve 208, the 9th hand stop valve 218 are often opened; When first low-temperature solenoid valve 207, when second low-temperature solenoid valve 217 damages; The 6th hand stop valve 206, the 7th hand stop valve 216 and the 8th hand stop valve 208, the 9th hand stop valve 218 are closed, and dismantle first low-temperature solenoid valve 207 this moment, second low-temperature solenoid valve, 217 maintain and replaces all do not influence system's proper functioning; The 4th hand stop valve 209, the 5th hand stop valve 219 are not worked as backup is normally closed at ordinary times; When first low-temperature solenoid valve 207, when second low-temperature solenoid valve 217 damages; Close the 6th hand stop valve 206, the 7th hand stop valve 216, the 8th hand stop valve 208, the 9th hand stop valve 218 simultaneously, open the 4th hand stop valve 209, the 5th hand stop valve 219 and realize that liquid nitrogen storage A234, liquid nitrogen storage B233 carry control to the liquid nitrogen of first vaporizer 210, second vaporizer 220; Through vaporizer A210, vaporizer B220 will be gas nitrogen by the liquid nitrogen vaporization that liquid nitrogen storage A234 and liquid nitrogen storage B233 transport respectively; And, be that the interior liquid nitrogen of liquid nitrogen storage A234 and liquid nitrogen storage B233 pressurizes thus to supplying among liquid nitrogen storage A234 and the liquid nitrogen storage B233 by the top of liquid nitrogen storage A234 and liquid nitrogen storage B233 respectively after the gas nitrogen pressurization after the vaporization.The supply gas pressure of said first vaporizer 210, second vaporizer 220 is adjustable between 0.4～0.6MPa; Can be through the size adjustment of first low-temperature solenoid valve 207, second low-temperature solenoid valve 217 or the 4th hand stop valve 209, the 5th hand stop valve 219 apertures; Aperture means that for a short time the amount of liquid nitrogen of carrying to first vaporizer 210, second vaporizer 220 is little; Reduce simultaneously through first vaporizer 210, the vaporized gas nitrogen amounts in second vaporizer, 220 backs; Cause the boost pressure of liquid nitrogen storage A234, liquid nitrogen storage B233 to reduce, reverse operating then causes the boost pressure of liquid nitrogen storage A234, liquid nitrogen storage B233 to increase.Liquid nitrogen storage A234 top is equipped with first remote pressure gauge 203, primary scene pressure gauge 205, and liquid nitrogen storage B233 top is equipped with second remote pressure gauge 213 and secondary scene pressure gauge 215; First remote pressure gauge 203 and second remote pressure gauge 213 are realized the in-site measurement and the remote measurement of pressure data among the liquid nitrogen storage A234 respectively; Second remote pressure gauge 213 and secondary scene pressure gauge 215 are realized the in-site measurement and the remote measurement of pressure data among the liquid nitrogen storage B233 respectively; According to the data of the pressure that records, control the aperture size of first low-temperature solenoid valve 207, second low-temperature solenoid valve 217 or the 4th hand stop valve 209, the 5th hand stop valve 219.Also be separately installed with first level meter 204, second level meter 214 on liquid nitrogen storage A234 and the liquid nitrogen storage B233; First level meter 204, second level meter 214 are respectively applied for the liquid nitrogen liquid level height of measuring liquid nitrogen storage A234, liquid nitrogen storage B233, when the liquid nitrogen liquid level is crossed when low the liquid nitrogen of in time annotating; Liquid nitrogen storage A234 and liquid nitrogen storage B233 are connected with the tenth hand stop valve 222 and the 11 manual stop valve 223 through pipeline respectively; 223 of the tenth hand stop valve 222 and the 11 manual stop valves are communicated with through triplate line; The tenth hand stop valve 222 is used to control the liquid nitrogen conveying of liquid nitrogen storage A234, and the 11 manual stop valve 223 is used to control the liquid nitrogen conveying of liquid nitrogen storage B233; The free end of triplate line is through connect the manual stop valve of the first low-temperature safety valve the 229, the 12 the 224, the 13 hand stop valve 225, the second low-temperature safety valve 230 successively, finally links to each other with heat sink entrance pipe system 500; The first low-temperature safety valve 229, the second low-temperature safety valve 230 are used to prevent the overpressure of liquid nitrogen supply system pipeline 200, and venting, discharge opeing are used; The 13 hand stop valve 225 is used for the amount of liquid nitrogen of control flows through heat sink entrance pipe system 500; The 13 hand stop valve 225 links to each other with the 3rd remote pressure gauge the 231, the 3rd on-the-spot pressure gauge 232 through triplate line; The 3rd remote pressure gauge 231 is used for the force value of liquid nitrogen supply system pipeline 200 is transferred to remote computer, is convenient to storage, processing; The 3rd on-the-spot pressure gauge 232 is used for the scene and reads force value, is convenient to execute-in-place.The pipeline its lowest position is equipped with the 14 hand stop valve 226 in the liquid nitrogen supply system 200, is used for after the off-test the residual liquid nitrogen of whole system pipeline of the present invention in time being discharged.First pneumatic stopping valve 201 and second pneumatic stopping valve 211 are respectively time liquid valve of liquid nitrogen storage A234, liquid nitrogen storage B233; But remote operation; The unnecessary liquid nitrogen of the heat-sink system 100 of flowing through when being used for being controlled at heat-sink system 100 precoolings is recovered to liquid nitrogen storage A234 and liquid nitrogen storage B233 through heat sink export pipeline system 600, reaches the purpose of practicing thrift liquid nitrogen; First hand stop valve 202, second hand stop valve 212 are respectively the standby valve of first pneumatic stopping valve 201, second pneumatic stopping valve 211; Often open at ordinary times and do not work; When first pneumatic stopping valve 201, when second pneumatic stopping valve 211 damages, the liquid nitrogen in the time of can be through execute-in-place first hand stop valve 202,100 precoolings of second hand stop valve, 212 control heat-sink systems reclaims; Liquid nitrogen storage A outlet valve 235 is installed in liquid nitrogen storage A234 top, is used for the gas release in the liquid nitrogen storage A234, opens when needing venting, closes at ordinary times; Liquid nitrogen storage B outlet valve 236 is installed in liquid nitrogen storage B233 top, is used for the gas release in the liquid nitrogen storage B233, opens when needing venting, closes at ordinary times.
Heat sink entrance pipe system 500 is used for heat sink system 100 and carries liquid nitrogen, comprises the manual stop valve of the manual stop valve of the 17 hand stop valve the 501, the 18 hand stop valve the 502, the 19 hand stop valve the 505, the 20 hand stop valve the 506, the 21 the 508, the 22 the 509, the 23 hand stop valve the 514, the 24 hand stop valve the 515, the 25 hand stop valve the 516, the 26 hand stop valve 517, the 3rd low-temperature safety valve 503, the 4th low-temperature safety valve 507, first pneumatic control valve 504, second pneumatic control valve 510, the 3rd pneumatic control valve 511, the 4th pneumatic control valve 512, the 5th pneumatic control valve 513.Adopt each liquid helium of pneumatic control valve remote adjustment entering amount of liquid nitrogen heat sink and the plume adsorption pump big or small among the present invention; Can realize the highi degree of accuracy accurate adjustment; Wherein, First pneumatic control valve 504 is connected to heat sink 101 inlets of gate liquid helium through pipeline, is used to control the amount of liquid nitrogen that gets into gate liquid helium heat sink 101; Second pneumatic control valve 510 is connected to heat sink 102 inlets of the anterior liquid helium of cabin body through pipeline, is used to control the amount of liquid nitrogen that gets into the anterior liquid helium heat sink 102 of cabin body; The 3rd pneumatic control valve 511 is connected to heat sink 103 inlets of body rear portion, cabin liquid helium through pipeline, is used to control the amount of liquid nitrogen that gets into body rear portion, cabin liquid helium heat sink 103; The 4th pneumatic control valve 512 is connected to heat sink 104 inlets of end socket liquid helium through pipeline, is used to control the amount of liquid nitrogen that gets into end socket liquid helium heat sink 104; The 5th pneumatic control valve 513 is connected to plume adsorption pump 105 inlets through pipeline, is used to control the amount of liquid nitrogen that gets into plume adsorption pump 105.Adopt the hand stop valve Field adjustment to get into the amount of liquid nitrogen size of each liquid nitrogen heat sink among the present invention, each liquid nitrogen heat sink does not need accurate adjustment, is reduction of expenditure, and on-the-spot coarse adjustment gets final product; Wherein, 514 of the 23 hand stop valves are connected to gate liquid nitrogen heat sink 106 through pipeline and enter the mouth, and are used to control the amount of liquid nitrogen that gets into gate liquid nitrogen heat sink 106; The 24 hand stop valve 515 place branch roads are connected to anterior liquid nitrogen heat sink 107 inlets of cabin body, are used to control the amount of liquid nitrogen that gets into the anterior liquid nitrogen heat sink 107 of cabin body; The 25 hand stop valve 516 is connected to body rear portion, cabin liquid nitrogen heat sink 108 inlets through pipeline, is used to control the amount of liquid nitrogen that gets into body rear portion, cabin liquid nitrogen heat sink 108; The 26 hand stop valve 517 is connected to end socket liquid nitrogen heat sink 109 inlets through pipeline, is used to control the amount of liquid nitrogen that gets into end socket liquid nitrogen heat sink 109; The 17 hand stop valve 501 is the master control valve of the heat sink and plume adsorption pump of each liquid helium, through the 17 hand stop valve 501 manually the control liquid nitrogen carry.The liquid nitrogen delivery line links to each other in the 17 hand stop valve 501 1 ends and the liquid nitrogen supply system 200, and the other end connects three branch roads at the 18 hand stop valve 502, the 3rd pneumatic control valve the 504, the 19 hand stop valve 505 places respectively; Wherein, The 18 hand stop valve 502 is the master control valve of these four branch road liquid nitrogen conveyings through four branch roads inlet UNICOMs at pipeline and second pneumatic control valve 510, the 3rd pneumatic control valve 511, the 4th pneumatic control valve 512, the 5th pneumatic control valve 513 places; The 19 hand stop valve 505 links to each other with the 23 hand stop valve the 514, the 24 hand stop valve the 515, the 25 hand stop valve the 516, the 26 hand stop valve 517 through gate liquid nitrogen heat sink 106 entrance pipes, anterior liquid nitrogen heat sink 107 entrance pipes of cabin body, body rear portion, cabin liquid nitrogen heat sink 108 entrance pipes and end socket liquid nitrogen heat sink 109 entrance pipes respectively, thus liquid helium heat sink 101 inlets in gate is entered the mouth through pipeline UNICOM with each liquid nitrogen heat sink; The 20 hand stop valve 506 will be realized the be interconnected feed flow or the independent feed flow of heat sink of all liquid nitrogen heat sinks and all liquid heliums except that the heat sink entrance pipe of all the other liquid heliums heat sink 101 entrance pipes of gate liquid helium (anterior liquid nitrogen heat sink 107 entrance pipes of cabin body, body rear portion, cabin liquid nitrogen heat sink 108, the end socket liquid helium is heat sink 104 entrance pipes) and each liquid nitrogen heat sink entrance pipe (gate liquid nitrogen heat sink 106 entrance pipes, anterior liquid nitrogen heat sink 107 entrance pipes of cabin body, body rear portion, cabin liquid nitrogen heat sink 108 entrance pipes, end socket liquid nitrogen heat sink 109 entrance pipes) UNICOM thus through pipeline through the 19 hand stop valve the 505, the 20 hand stop valve 506.The 21 manual stop valve 508 links to each other through the entrance pipe that blows down pipeline and be connected to second pneumatic control valve 510, the 3rd pneumatic control valve 511, the 4th pneumatic control valve 512, the 5th pneumatic control valve 513; The 21 manual stop valve 508 can be used to connect outside gas nitrogen purging system; Heat sink and plume adsorption pump provides gas nitrogen to liquid helium through outside gas nitrogen purging system, blows down heat sink with each liquid helium and the plume adsorption pump 105 residual liquid nitrogen in the pipeline that links to each other.The 22 manual stop valve 509 1 ends are connected to the entrance pipe of second pneumatic control valve 510, the 3rd pneumatic control valve 511, the 4th pneumatic control valve 512, the 5th pneumatic control valve 513 through pipeline; The other end is connected directly to atmosphere through pipeline, is used for the link to each other discharging of pipeline liquid nitrogen of the heat sink and plume adsorption pump of each liquid helium 105.The 3rd low-temperature safety valve 503 is installed on heat sink 101 entrance pipes of gate liquid helium; The 4th low-temperature safety valve 507 is installed in and blows down on the pipeline; The 3rd low-temperature safety valve 503, the 4th low-temperature safety valve 507 are used for when heat sink entrance pipe system loine pressure is too high, and venting, discharge opeing are used.
Flow through when being used for the heat-sink system 100 precoolings unnecessary liquid nitrogen of heat-sink system 100 of heat sink export pipeline system 600 is recovered among liquid nitrogen storage A234 and the liquid nitrogen storage B233 through heat sink export pipeline system 600, comprises the manual stop valve of the manual stop valve of the 27 hand stop valve the 602, the 28 hand stop valve the 606, the 29 hand stop valve the 613, the 30 hand stop valve the 614, the 31 the 615, the 32 the 618, the 33 hand stop valve the 621, the 34 hand stop valve the 622, the 35 hand stop valve the 623, the 36 hand stop valve the 625, the 37 hand stop valve the 626, the 38 hand stop valve the 628, the 39 hand stop valve 630, first low-reading thermometer 601, second low-reading thermometer 607, the 3rd low-reading thermometer 608, the 4th low-reading thermometer 609, the 5th low-reading thermometer 610, the 6th low-reading thermometer 611, the 7th low-reading thermometer 612, the 8th low-reading thermometer 632, the 5th low-temperature safety valve 605, the 6th low-temperature safety valve 616, the 7th low-temperature safety valve 617, the 8th low-temperature safety valve 624, the 9th low-temperature safety valve 627, the tenth low-temperature safety valve the 629, the 11 low-temperature safety valve 631, the 4th remote pressure gauge 603, the 5th remote pressure gauge the 619, the 4th on-the-spot pressure gauge the 604, the 5th on-the-spot pressure gauge 620 and the 6th pneumatic control valve 633.Wherein, The 28 hand stop valve 606 1 ends are through the straight-through atmosphere of pipeline; The other end through pipeline connect the 5th low-temperature safety valve the 605, the 27 hand stop valve 602 in order, the 4th remote pressure gauge 603 to gate liquid helium is heat sink 101 outlets, form the heat sink 101 outlet discharge pipes of gate liquid helium; The 27 hand stop valve 602 also links to each other with the 4th on-the-spot pressure gauge 604, first low-reading thermometer 601; First low-reading thermometer 601 is used to measure the temperature in heat sink 101 outlet ports of gate liquid helium, and the 4th remote pressure gauge 603 and the 4th on-the-spot pressure gauge 604 are used to measure heat sink 101 outlet pressure of gate liquid helium.The 33 hand stop valve 621 1 ends are through the straight-through atmosphere of pipeline; After the other end connects the 32 manual stop valve 618, the 7th low-temperature safety valve 617 in order through pipeline; Be connected with six road pipelines respectively; The first via is connected to heat sink 102 outlets of the anterior liquid helium of cabin body through second low-reading thermometer 607, and second low-reading thermometer 607 is used for heat sink 102 outlet temperatures of the anterior liquid helium of survey room body; The second the tunnel is connected to body rear portion, cabin liquid helium heat sink 103 through the 3rd low-reading thermometer 608 exports, and the 3rd low-reading thermometer 608 is used for heat sink 103 outlet temperatures of survey room body rear portion liquid helium; Third Road is connected to heat sink 104 outlets of end socket liquid helium through the 4th low-reading thermometer 609, and the 4th low-reading thermometer 609 is used to measure heat sink 104 outlet temperatures of end socket liquid helium; The four the tunnel is connected to the 105 big tube outlets of plume adsorption pump through the 29 hand stop valve 613, the 5th low-reading thermometer 610; The 5th low-reading thermometer 610 is used to measure 105 big outlet temperatures of plume adsorption pump, and the 29 hand stop valve 613 is used to control the liquid nitrogen flow size through plume adsorption pump 105 big tubes; The five the tunnel is connected to tube outlet in the plume adsorption pump 105 through the 30 hand stop valve 614, the 6th low-reading thermometer 611; The 6th low-reading thermometer 611 is used for measuring 105 outlet temperatures of plume adsorption pump, and the 30 hand stop valve 614 is used for controlling the liquid nitrogen flow size through 105 of plume adsorption pumps; LIULUTONG is crossed the 31 manual stop valve 615, the 7th low-reading thermometer 612 is connected to the 105 little tube outlets of plume adsorption pump; The 7th low-reading thermometer 612 is used to measure 105 little outlet temperatures of plume adsorption pump, and the 31 manual stop valve 615 is used to control the liquid nitrogen flow size through plume adsorption pump 105 little tubes.Form the heat sink and plume adsorption pump outlet discharge pipe of other liquid heliums except that gate liquid helium heat sink 106 thus; Said 32 manual stop valves 618 link to each other with the 5th remote pressure gauge the 619, the 5th on-the-spot pressure gauge 620; The 5th remote pressure gauge 619 is used for force value is transferred to remote computer; Be convenient to storage, processing, the 5th on-the-spot pressure gauge 620 is used for the scene and reads force value, is convenient to execute-in-place.The 6th pneumatic control valve 633 is used for discharging the gas nitrogen in the whole system; One end is through the straight-through atmosphere of pipeline; The other end is connected with four road pipelines respectively after connecting the 8th low-reading thermometer the 632, the 11 low-temperature safety valve the 631, the 39 hand stop valve 630, the tenth low-temperature safety valve the 629, the 38 hand stop valve 628, the 9th low-temperature safety valve 627 in order through pipeline, and four road pipelines are connected to gate liquid nitrogen heat sink 106, the anterior liquid nitrogen heat sink 107 of cabin body, body rear portion, cabin liquid nitrogen heat sink 108, end socket liquid nitrogen heat sink 109 respectively.Outlet discharge pipe through the 34 hand stop valve 622 that the discharge pipe of the outlet of gate liquid helium heat sink 101 is heat sink with all the other liquid heliums and plume adsorption pump 105 is communicated with.Through the 35 hand stop valve 623, the 8th low-temperature safety valve the 624, the 37 hand stop valve 626 is heat sink with each liquid helium, the outlet discharge pipe of plume adsorption pump and each liquid nitrogen heat sink is communicated with and forms pipe network system; Concrete Placement is: the 35 hand stop valve 623 1 ends are communicated with plume adsorption pump 105 outlet discharge pipes through pipeline; The other end connects the 8th low-temperature safety valve the 624, the 37 hand stop valve 626 in order through pipeline and is connected between the 38 hand stop valve 628 and the tenth low-temperature safety valve 629 on the pipeline, requires to close simultaneously or open simultaneously during 626 operations of the 35 hand stop valve the 623, the 37 hand stop valve.The 8th low-temperature safety valve 624 is installed on the pipeline between the 35 hand stop valve 623 and the 37 hand stop valve 626, is used for venting when this section loine pressure is too high.The 36 hand stop valve 625 1 ends are connected between the 35 hand stop valve 623 and the 37 hand stop valve 626, and the other end leads directly to atmosphere, are used for the discharging of fluid (liquid or gas).The 6th low-temperature safety valve 616 is installed on the 21 manual stop valve 615 entrance pipes, is used for venting when this section loine pressure is too high.The 6th pneumatic control valve 633 and the pipeline of 631 on the 11 low-temperature safety valve link to each other with second pneumatic stopping valve 221 with first pneumatic stopping valve 201 in the liquid nitrogen supply system 200, reach the purpose that liquid nitrogen storage A234 and liquid nitrogen storage B233 reclaim liquid nitrogen.
Subcooler system 300 is used for the liquid nitrogen refrigerating cooling that each liquid nitrogen heat sink of subtend is carried; Make the gas nitrogen liquefaction that contains in the liquid nitrogen of being carried, comprise the manual stop valve of the manual stop valve of subcooler 316 and the 40 hand stop valve the 301, the 41 the 302, the 42 the 305, the 43 hand stop valve the 311, the 44 hand stop valve the 312, the 45 hand stop valve the 314, the 46 hand stop valve 315, the 9th low-reading thermometer 303, the tenth low-reading thermometer 313, the 7th pneumatic control valve 304, the 6th remote pressure gauge 306, the 7th remote pressure gauge the 308, the 6th on-the-spot pressure gauge the 307, the 7th on-the-spot pressure gauge 309 and the 3rd level meter 310.Wherein, The 40 hand stop valve 301 is the feed liquor and the make-up valve of subcooler system 300; The liquid nitrogen delivery line of 224 of the first low-temperature safety valve the 229, the 12 manual stop valves is communicated with in one end and the liquid nitrogen supply system 200; The other end is communicated with the interior supercooling tube road liquid feeding end of subcooler 316 main bodys through pipeline, makes the liquid nitrogen in the liquid nitrogen supply system 200 can enter into cooler system 300 thus; When heat-sink system 100 precoolings, can carry through the liquid nitrogen in the 40 hand stop valve 301 control supercooling tube roads; After subcooler system 300 gets into closed cycle after heat sink precooling finishes, can carry out fluid infusion to the supercooling tube road, guarantee the abundance of the interior liquid nitrogen of pipeline in the subcooler system 300 through the size of regulating the 40 hand stop valve 301 apertures.The 9th low-reading thermometer 303 is arranged on ingress, supercooling tube road, is used to measure supercooling tube road inlet temperature; The 7th pneumatic control valve 304 1 ends are communicated with the liquid nitrogen delivery line of 224 of the 12 manual stop valves through the first low-temperature safety valve 229 in pipeline and the liquid nitrogen supply system 200, are used for controlling in subcooler 316 main bodys, carrying liquid nitrogen.The 3rd level meter 310 is installed on the subcooler 316; Be used for measuring liquid nitrogen liquid level in subcooler 316 main bodys; And can come remote auto to regulate subcooler 316 main body liquid nitrogen liquid levels through the size that the 3rd level meter 310 records numerical value, keep the constant of liquid level in subcooler 316 main bodys.The 6th remote pressure gauge 306 and the 4th on-the-spot pressure gauge 307 are connected to outlet port, supercooling tube road through the 42 manual stop valve 305; The 6th remote pressure gauge the 306, the 6th on-the-spot pressure gauge 307 all is used to measure the pressure of ingress, supercooling tube road, through the 6th remote pressure gauge 306 pressure value that records is delivered to upper-position unit and realizes remote measurement; Realize on-the-spot directly perceived the measurement through the 6th on-the-spot pressure gauge 307, be convenient to the Field Force and check; The 42 manual stop valve 305 is used for the start and stop of pilot pressure table; When the 42 manual stop valve 305 is opened, the 6th remote pressure gauge 306 and the 6th on-the-spot pressure gauge 307 work; When the 42 manual stop valve 305 was closed, the 6th remote pressure gauge 306 and the 6th on-the-spot pressure gauge 307 were not worked; When the 6th remote pressure gauge 306 or the 6th on-the-spot pressure gauge 307 damage, can close the 42 manual stop valve 305 and change, not influence subcooler system 300 in the process of replacing and normally move.In like manner, the 7th remote pressure gauge the 308, the 7th on-the-spot pressure gauge 309 all is used to measure subcooler 316 main body pressure, and the pressure value that the 7th remote pressure gauge 309 records is delivered to upper-position unit and realized remote measurement; The 7th on-the-spot table 309 of pressing is realized on-the-spot directly perceived the measurement, is convenient to the Field Force and checks; At subcooler 316 main body tip positions the 43 hand stop valve 311 is installed, is used to discharge the nitrogen that produces because of liquid nitrogen gasification.In subcooler 316 bottom part body positions the 44 hand stop valve 312 is installed, is used for the discharging of remaining liquid nitrogen in subcooler 316 main bodys after the off-test.The 46 hand stop valve 315 is connected to outlet port, supercooling tube road through pipeline, and the 46 hand stop valve 315 also is connected in liquid nitrogen pump system 400 and the heat sink export pipeline system 600 on the 11 low-temperature safety valve 631 and 630 pipelines of the 39 hand stop valve through pipeline; Said the 46 hand stop valve 315 mounting points are higher than the outlet of supercooling tube road; The discharging of the gas nitrogen of being convenient to produce in the pipelines in the subcooler system 300, the gas nitrogen that produces in the pipelines in the subcooler system 300 is discharged with the 6th pneumatic control valve 633 in the heat sink export pipeline system 600.The 45 hand stop valve 314 1 ends are connected on the 44 hand stop valve 312 and the subcooler 316 intersubjective pipelines through pipeline; The other end is connected on the pipeline between the 46 hand stop valve 315 and the heat sink export pipeline system 600, is used to control the recovery of subcooler 316 main body liquid nitrogen after the off-test.The tenth low-reading thermometer 313 is arranged on outlet port, supercooling tube road, is used to measure supercooling tube road outlet temperature.The 41 manual stop valve 302 1 ends are communicated with ingress, supercooling tube road through pipeline; The other end is connected on the pipeline of 629 of the 39 hand stop valves 630 and the tenth low-temperature safety valve in the heat sink export pipeline system 600 through pipeline; When whole transporting system closed cycle, the unnecessary liquid nitrogen of the heat-sink system 100 of flowing through during heat-sink system 100 precoolings can enter into subcooler system 300 thus.
Liquid nitrogen pump system 400 is used for heat sink entrance pipe system 500 and carries the liquid nitrogen after the cooling; And realize the closed cycle refrigeration of heat-sink system 100, and will be transported to heat sink entrance pipe system 500 backs through the liquid nitrogen after 300 coolings of subcooler system and get into each liquid nitrogen heat sinks.Liquid nitrogen pump system 400 comprises fine filter 401; Liquid nitrogen pump A407; Liquid nitrogen pump B418; The 47 hand stop valve 403; The 48 hand stop valve 406; The 49 hand stop valve 408; The 50 hand stop valve 409; The 51 manual stop valve 410; The 52 manual stop valve 413; The 53 hand stop valve 417; The 54 hand stop valve 420; The 55 hand stop valve 419; The 12 low-temperature safety valve 402; The 13 low-temperature safety valve 416; The 11 low-reading thermometer 411; The 8th remote pressure gauge 404; The 9th remote pressure gauge 414; The 8th on-the-spot pressure gauge 405; The 9th on-the-spot pressure gauge 415; Low temperature flowmeter 412.Wherein, fine filter 401 is installed in liquid nitrogen pump system 400 entrance pipe places, is used for impurity screening, guarantees to flow into the liquid nitrogen cleaning of liquid nitrogen pump, avoids because there is the damage that causes liquid nitrogen pump in impurity.Fine filter 401 1 ends link to each other through the 46 hand stop valve 315 in pipeline and the subcooler system 300, make the liquid nitrogen after subcooler system 300 lowers the temperature can enter into liquid nitrogen pump system 400 thus; Fine filter 401 the other ends are equipped with the four-way pipeline; The first via connects the 48 hand stop valve 406, liquid nitrogen pump A407, the 50 hand stop valve 409 in order through pipeline; The second the tunnel connects the 53 hand stop valve 417, liquid nitrogen pump B418, the 54 hand stop valve 420 in order through pipeline; Third Road connects the 51 manual stop valve 410 through pipeline, and the three-way connection (pipe) road is connected in parallel to low temperature flowmeter 412 ingress through the four-way pipeline.Wherein, 51 manual stop valves, 410 place branch roads are heat sink precooling dedicated line, this pipeline work during heat sink precooling.Liquid nitrogen pump A407 and liquid nitrogen pump B418 place pipeline are system's closed cycle dedicated line; After heat sink precooling finishes, use this pipeline, this two-way pipeline backups each other, when liquid nitrogen pump A407 damages; Start liquid nitrogen pump B418 and replace work, do not influence closed system and normally move.The 8th remote pressure gauge 404 and the 8th on-the-spot pressure gauge 405 are installed in liquid nitrogen pump A407, liquid nitrogen pump B418 ingress, are used to measure liquid nitrogen pump A407, liquid nitrogen pump B418 entrance pipe pressure, by the 403 control start and stop of the 47 hand stop valve.The 9th remote pressure gauge 414 and the 9th on-the-spot pressure gauge 415 are installed in liquid nitrogen pump A407, liquid nitrogen pump B418 outlet port, are used to measure liquid nitrogen pump A407, liquid nitrogen pump B418 export pipeline pressure, by the 52 manual stop valve 413 control start and stop.The 53 hand stop valve the 417, the 54 hand stop valve 420 cuts out at ordinary times; When liquid nitrogen pump A407 damages; Close the 48 hand stop valve 406 and the 50 hand stop valve 409 and open the 53 hand stop valve the 417, the 54 hand stop valve 420 simultaneously and start liquid nitrogen pump B418 and replace work, liquid nitrogen pump A407 or liquid nitrogen pump B418 do not influence closed system in the dismounting maintenance process proper functioning is convenient in this setting.The 49 hand stop valve 408 1 ends are communicated with liquid nitrogen pump A407 export pipeline through pipeline; The other end and atmosphere; Close at ordinary times; When needs start liquid nitrogen pump A407, open, close this valve when the 49 hand stop valve 408 outlet ports have liquid nitrogen to continue to flow out, start liquid nitrogen pump A407 simultaneously when observing; The 55 hand stop valve 419 1 ends are communicated with liquid nitrogen pump B418 export pipeline through pipeline; The other end and atmosphere; Close at ordinary times; When needs start liquid nitrogen pump B407, open, close this valve when the 55 hand stop valve 419 outlet ports have liquid nitrogen to continue to flow out, start liquid nitrogen pump B418 simultaneously when observing.The 11 low-reading thermometer 411 is installed on the export pipeline of liquid nitrogen pump A407 and liquid nitrogen pump B418, is used to measure the liquid nitrogen temperature of liquid nitrogen pump A407 or liquid nitrogen pump B418 of flowing through; Low temperature flowmeter 412 is positioned on the export pipeline of liquid nitrogen pump A407 and liquid nitrogen pump B418, is used to measure the liquid nitrogen flow of liquid nitrogen pump of flowing through, and can according to actual needs low temperature flowmeter 412 be installed in the 11 low-reading thermometer 411 left sides or right side.The 12 low-temperature safety valve the 402, the 13 low-temperature safety valve 416 is installed in respectively on liquid nitrogen pump A407 and the liquid nitrogen pump B418 entrance and exit pipeline, is used to prevent that loine pressure is too high, and venting, discharge opeing are used.
When carrying out the motor plume testing, liquid nitrogen heat sink, liquid helium is heat sink and the plume adsorption pump need be worked simultaneously, and corresponding liquid nitrogen transporting system workflow is specially and comprises following step, and is as shown in Figure 2:
Step 1: liquid nitrogen storage A234 liquid nitrogen filling;
Open the 15 hand stop valve 227 and accomplish the liquid nitrogen filling of liquid nitrogen storage A234, liquid nitrogen storage B233 does not annotate;
Step 2: subcooler 316 main body liquid nitrogen filling;
Open the tenth hand stop valve 222, the 7th pneumatic control valve 304 and the 43 hand stop valve 311 successively and accomplish the liquid nitrogen filling of liquid nitrogen subcoolers 316 main bodys; Crack the 7th pneumatic control valve 304 of filling initial stage; Utilize the cold nitrogen of initial stage evaporation fully to blow down the air in subcooler 316 main bodys; Standard-sized sheet the 7th pneumatic control valve 304 and quick filling are up to specifying liquid level then; And according to the numerical value of the 3rd level meter 310, the aperture of remote adjustment the 7th pneumatic control valve 304 is to keep the constant of liquid level;
Step 3: each liquid nitrogen heat sink precooling;
Open the manual stop valve of the 40 hand stop valve the 301, the 51 the 410, the 23 hand stop valve the 514, the 24 hand stop valve the 515, the 25 hand stop valve the 516, the 26 hand stop valve the 517, the 38 hand stop valve the 628, the 39 hand stop valve 630, the 6th pneumatic control valve 633 successively; Make liquid nitrogen enter into subcooler 316 internal pipelines; Utilizing the liquid nitrogen in subcooler 316 main bodys is through the liquid nitrogen cooling in subcooler 316 internal pipelines; Liquid nitrogen after the cooling enters into liquid nitrogen pump system 400 with subcooler 316 export pipelines; After entering into liquid nitrogen transporting system 500 at last; Realization is carried out precooling (cooling procedure from normal temperature to 77K) to gate liquid nitrogen heat sink 106, the anterior liquid nitrogen heat sink 107 of cabin body, body rear portion, cabin liquid nitrogen heat sink 108, end socket liquid nitrogen heat sink 109, and this process forms the open type precooling of each liquid nitrogen heat sink;
Step 4: each liquid helium is heat sink and 105 precoolings of plume adsorption pump;
Each liquid helium is heat sink and 105 precoolings of plume adsorption pump and liquid nitrogen heat sink precooling are carried out simultaneously; Open the 12 manual stop valve the 224, the 17 hand stop valve 501,18 hand stop valves 502, first pneumatic control valve 504, second pneumatic control valve 510, the 3rd pneumatic control valve 511, the 4th pneumatic control valve 512, the 5th pneumatic control valve the 513, the 34 hand stop valve the 622, the 35 hand stop valve the 623, the 37 hand stop valve 626 successively; The anterior liquid helium of, cabin body heat sink 101 to the gate liquid helium is heat sink 102, body rear portion, cabin liquid helium is heat sink 103, the end socket liquid helium is heat sink 104, plume adsorption pump 105 carries out precooling (cooling procedure from normal temperature to 77K), and this process forms the open type precooling of the heat sink and plume adsorption pump 105 of each liquid helium;
Step 5: liquid nitrogen storage A234 is to the metaideophone (pouring in down a chimney) of liquid nitrogen storage B233;
Make full use of the low temperature nitrogen cold simultaneously for saving liquid nitrogen consumption; When beginning, precooling can directly close the 6th pneumatic control valve 633 (no matter whether the outlet port runs liquid); Open second pneumatic stopping valve 211, second hand stop valve 212 of liquid nitrogen storage B233 simultaneously; Utilize low temperature nitrogen precooling liquid nitrogen storage B233 and reclaim unnecessary liquid nitrogen, all gas is all got rid of through nitrogen storage tank B outlet valve 236, and this process forms by liquid nitrogen metaideophone (pour in down a chimney) process of liquid nitrogen storage A234 to liquid nitrogen storage B233;
Step 6: liquid nitrogen storage B233 is to the metaideophone (pouring in down a chimney) of liquid nitrogen storage A234;
At each liquid helium in heat sink and plume adsorption pump 105 precooling process; When liquid nitrogen storage A234 liquid nitrogen is exhausted; Close the tenth hand stop valve 222, second pneumatic stopping valve 211 (second hand stop valve 212 is often opened and got final product); Open the 11 manual stop valve 223, first pneumatic stopping valve 201, first hand stop valve 202, form by liquid nitrogen metaideophone (pouring in down a chimney) process of liquid nitrogen storage B233 to liquid nitrogen storage A234;
Step 7: heat-sink system 100 temperature regulation;
Each liquid nitrogen heat sink, liquid helium is heat sink and plume adsorption pump 105 precooling process in; Regulate each heat sink cooling rate through the liquid nitrogen supply; To guarantee that each is heat sink even with plume adsorption pump 105 temperature; Utilize the 23 hand stop valve 514 adjusting gate liquid nitrogen heat sink 106 temperature; Utilize anterior liquid nitrogen heat sink 107 temperature of the 24 hand stop valve 515 adjusting cabin bodies; Utilize body rear portion, the 25 hand stop valve 516 adjusting cabin liquid nitrogen heat sink 108 temperature, utilize the 26 hand stop valve 517 to regulate end socket liquid nitrogen heat sink 109 temperature, utilize heat sink 101 temperature of first pneumatic control valve, 504 adjusting gate liquid heliums; Heat sink 102 temperature of the second pneumatic control valve anterior liquid helium of 510 adjusting cabin bodies; Utilize heat sink 103 temperature of the 3rd pneumatic control valve 511 adjusting cabin body rear portion liquid helium, utilize the 4th pneumatic control valve 512 to regulate heat sink 104 temperature of end socket liquid helium, utilize five pneumatic control valves the 513, the 29 hand stop valve the 613, the 30 hand stop valve the 614, the 31 manual stop valve 615 to regulate plume adsorption pump 105 temperature;
Step 8: the closed cycle of each liquid nitrogen heat sink;
Treat each liquid nitrogen heat sink, after each liquid helium is heat sink and plume adsorption pump 105 temperature reduce to liquid nitrogen temperature 77K; Each liquid nitrogen heat sink can get into closed cycle; At first; Open the logical liquid nitrogen precooling of 408 couples of liquid nitrogen pump A407 of the 48 hand stop valve the 406, the 49 hand stop valve, when there is the liquid nitrogen ejection in the 49 hand stop valve 408 outlet ports (rule of thumb precooling got final product in about 15 minutes), close the 49 hand stop valve the 408, the 51 manual stop valve 410; Open the 50 hand stop valve 409 simultaneously; Accomplish the startup of liquid nitrogen pump A407, secondly, close the 39 hand stop valve 630 (aperture undertaken or according to practical adjustments) gradually, open the 41 manual stop valve 302 simultaneously gradually (aperture undertaken or according to practical adjustments) by 30%, 50%, 100% by 70%, 50%, 0%; Accomplish each liquid nitrogen heat sink by the transition of open type precooling to closed cycle, crack the 46 hand stop valve 315 supplies the system pipelines venting to use after the entering closed cycle;
Step 9: stop the liquid nitrogen supply of the heat sink and plume adsorption pump 105 of each liquid helium;
After treating that each liquid nitrogen heat sink gets into closed cycle fully, close the liquid nitrogen conveying that the 17 hand stop valve 501 stops and plume adsorption pump 105 heat sink to each liquid helium.
When carrying out satellite thermal vacuum test, each liquid helium is heat sink and plume adsorption pump 105 is worked simultaneously, and each liquid nitrogen heat sink is not worked as protective shield of radiation, is specially to comprise following step, and is as shown in Figure 3:
Step 1: liquid nitrogen storage A234 liquid nitrogen filling;
Open the 15 hand stop valve 227 and accomplish the liquid nitrogen filling of liquid nitrogen storage A234, liquid nitrogen storage B233 does not annotate;
Step 2: subcooler 316 main body liquid nitrogen filling;
Open the tenth hand stop valve 222, the 7th pneumatic control valve 304 and the 43 hand stop valve 311 successively and accomplish the liquid nitrogen filling of liquid nitrogen subcoolers 316 main bodys; Crack the 7th pneumatic control valve 304 of filling initial stage; Utilize the cold nitrogen of initial stage evaporation fully to blow down the air in subcooler 316 main bodys; Standard-sized sheet the 7th pneumatic control valve 304 and quick filling are up to specifying liquid level then; And according to the numerical value of the 3rd level meter 310, the aperture of remote adjustment the 7th pneumatic control valve 304 is to keep the constant of liquid level;
Step 3: each liquid helium is heat sink and 105 precoolings of plume adsorption pump;
Open the manual stop valve of the 40 hand stop valve the 301, the 51 the 410, the 19 hand stop valve the 505, the 20 hand stop valve 506, first pneumatic control valve 504, second pneumatic control valve 510, the 3rd pneumatic control valve 511, the 4th pneumatic control valve 512, the 5th pneumatic control valve the 513, the 34 hand stop valve the 622, the 35 hand stop valve the 623, the 37 hand stop valve the 626, the 39 hand stop valve 630, the 6th pneumatic control valve 633 successively; Make liquid nitrogen enter into subcooler 316 internal pipelines; Utilizing the liquid nitrogen in subcooler 316 main bodys is through the liquid nitrogen cooling in subcooler 316 internal pipelines; Liquid nitrogen after the cooling enters into liquid nitrogen pump system 400 with subcooler 316 export pipelines; After entering into liquid nitrogen transporting system 500 at last; Realization is heat sink 101 to the gate liquid helium, body anterior liquid helium in cabin is heat sink 102, body rear portion, cabin liquid helium is heat sink 103, the end socket liquid helium is heat sink 104, plume adsorption pump 105 carries out precooling (cooling procedure from normal temperature to 77K), and this process forms the open type precooling of the heat sink and plume adsorption pump 105 of each liquid helium;
Step 4: liquid nitrogen storage A234 is to metaideophone (pouring in down a chimney) process of liquid nitrogen storage B233;
Make full use of the low temperature nitrogen cold simultaneously for saving liquid nitrogen consumption; When beginning, precooling can directly close the 6th pneumatic control valve 633 (no matter whether the outlet port runs liquid); Open second pneumatic stopping valve 211, second hand stop valve 212 of liquid nitrogen storage B233 simultaneously; Utilize low temperature nitrogen precooling liquid nitrogen storage B233 and reclaim unnecessary liquid nitrogen, all gas is all got rid of through nitrogen storage tank B outlet valve 236, and this process forms by liquid nitrogen metaideophone (pour in down a chimney) process of liquid nitrogen storage A234 to liquid nitrogen storage B233;
Step 5: liquid nitrogen storage B233 is to metaideophone (pouring in down a chimney) process of liquid nitrogen storage A234;
At each liquid helium in heat sink and plume adsorption pump 105 precooling process; When liquid nitrogen storage A234 liquid nitrogen is exhausted; Close the tenth hand stop valve 222, second pneumatic stopping valve 211 (second hand stop valve 212 is often opened and got final product); Open the 11 manual stop valve 223, first pneumatic stopping valve 201, first hand stop valve 202, form by liquid nitrogen metaideophone (pouring in down a chimney) process of liquid nitrogen storage B233 to liquid nitrogen storage A234;
Step 6: each liquid helium is heat sink and the temperature regulation of plume adsorption pump 105;
Each liquid helium is heat sink and plume adsorption pump 105 precooling process in regulate each heat sink cooling rate through the liquid nitrogen supply; Heat sink even to guarantee each liquid helium with plume adsorption pump 105 temperature; Utilize heat sink 101 temperature of the 3rd pneumatic control valve 504 adjusting gate liquid heliums; Utilize heat sink 102 temperature of the second pneumatic control valve anterior liquid helium of 510 adjusting cabin bodies; Utilize heat sink 103 temperature of the 3rd pneumatic control valve 511 adjusting cabin body rear portion liquid helium; Utilize the 4th pneumatic control valve 512 to regulate heat sink 104 temperature of end socket liquid helium, utilize the 5th pneumatic control valve the 513, the 29 hand stop valve the 613, the 30 hand stop valve the 614, the 31 manual stop valve 615 to regulate plume adsorption pump 105 temperature;
Step 7: each liquid helium is heat sink and the closed cycle of plume adsorption pump 105;
Treat that each liquid helium is heat sink, after plume adsorption pump 105 temperature reduce to liquid nitrogen temperature 77K; Can get into closed cycle; At first; Open the logical liquid nitrogen precooling of 408 couples of liquid nitrogen pump A407 of the 48 hand stop valve the 406, the 49 hand stop valve, when there is the liquid nitrogen ejection in the 49 hand stop valve 408 outlet ports (rule of thumb precooling got final product in about 15 minutes), close the 49 hand stop valve the 408, the 51 manual stop valve 410; Open the 50 hand stop valve 409 simultaneously; Accomplish the startup of liquid nitrogen pump A407, secondly, close the 39 hand stop valve 630 (aperture undertaken or according to practical adjustments) gradually, open the 41 manual stop valve 302 simultaneously gradually (aperture undertaken or according to practical adjustments) by 30%, 50%, 100% by 70%, 50%, 0%; Accomplish that each is heat sink by the transition of open type precooling to closed cycle, get into closed cycle after crack the 46 hand stop valve 315 supply the system pipelines venting to use.
The maximum heating load that the two heat sink enclosed liquid nitrogen transporting systems of large scale of the present invention can satisfy test requirements document is 60kW, can carry out the high heat load test.

Claims (10)

1. the two heat sink enclosed liquid nitrogen transporting systems of large scale is characterized in that: comprise heat-sink system (100), liquid nitrogen supply system (200), subcooler system (300), liquid nitrogen pump system (400), heat sink entrance pipe system (500), heat sink export pipeline system (600);
Heat-sink system (100) comprises gate liquid helium heat sink (101), cabin body anterior liquid helium heat sink (102), body rear portion, cabin liquid helium heat sink (103), the end socket liquid helium is heat sink (104), plume adsorption pump (105), gate liquid nitrogen heat sink (106), the anterior liquid nitrogen heat sink (107) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108), end socket liquid nitrogen heat sink (109); Gate liquid nitrogen heat sink (106), the gate liquid helium is heat sink (101), the anterior liquid nitrogen heat sink (107) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108) are provided with end socket liquid helium heat sink (104), end socket liquid nitrogen heat sink (109) successively from front to back; The anterior liquid helium heat sink (102) of cabin body, body rear portion, cabin liquid helium heat sink (103) are arranged on the anterior liquid nitrogen heat sink (107) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108) inside; Plume adsorption pump (105) is arranged on body rear portion, cabin liquid helium heat sink (103) inside, is used for adsorbing plume gas;
Liquid nitrogen supply system (200) comprises liquid nitrogen storage A (234); Liquid nitrogen storage B (233) and first pneumatic stopping valve (201); Second pneumatic stopping valve (211); First hand stop valve (202); Second hand stop valve (212); The 3rd hand stop valve (221); The 4th hand stop valve (209); The 5th hand stop valve (219); The 6th hand stop valve (206); The 7th hand stop valve (216); The 8th hand stop valve (208); The 9th hand stop valve (218); The tenth hand stop valve (222); The 11 manual stop valve (223); The 12 manual stop valve (224); The 13 hand stop valve (225); The 14 hand stop valve (226); The 15 hand stop valve (227); The 16 hand stop valve (228); First remote pressure gauge (203); Second remote pressure gauge (213); The 3rd remote pressure gauge (231); Primary scene pressure gauge (205); Secondary scene pressure gauge (215); The 3rd on-the-spot pressure gauge (232); First low-temperature solenoid valve (207); Second low-temperature solenoid valve (217); First level meter (204); Second level meter (214); The first low-temperature safety valve (229); The second low-temperature safety valve (230); First vaporizer (210) and second vaporizer (220); Liquid nitrogen storage A outlet valve (235) and liquid nitrogen storage B outlet valve (236);
Wherein, be respectively filling liquid nitrogen in liquid nitrogen storage A (234), the liquid nitrogen storage B (233) through the 15 hand stop valve (227), the 16 hand stop valve (228); Be communicated with through the 3rd hand stop valve (221) between liquid nitrogen storage A (234) and liquid nitrogen storage B (233); The 3rd hand stop valve (221) also is communicated with the outlet of first vaporizer (210) with second vaporizer (220) respectively, and first vaporizer (210) also is communicated with liquid nitrogen storage A (234), liquid nitrogen storage B (233) through pipeline respectively with the outlet end of second vaporizer (220); First vaporizer (210) is communicated with liquid nitrogen storage A (234), liquid nitrogen storage B (233) through the 4th hand stop valve (209), the 5th hand stop valve (219) respectively with the inlet of second vaporizer (220); First low-temperature solenoid valve (207) is parallelly connected with the 4th hand stop valve (209) through pipeline; Second low-temperature solenoid valve (217) is parallelly connected with the 5th hand stop valve (219) through pipeline; First remote pressure gauge (203), primary scene pressure gauge (205) are installed on the liquid nitrogen storage A (234), second remote pressure gauge (213) and secondary scene pressure gauge (215) are installed on the liquid nitrogen storage B (233); Also be separately installed with first level meter (204), second level meter (214) on liquid nitrogen storage A (234) and the liquid nitrogen storage B (233); Liquid nitrogen storage A (234) and liquid nitrogen storage B (233) are connected with the tenth hand stop valve (222) and the 11 manual stop valve (223) through pipeline respectively, are communicated with through triplate line between the tenth hand stop valve (222) and the 11 manual stop valve (223); The free end of triplate line finally links to each other with heat sink entrance pipe system (500) through connecting the first low-temperature safety valve (229), the 12 manual stop valve (224), the 13 hand stop valve (225), the second low-temperature safety valve (230) successively; The 13 hand stop valve (225) links to each other with the 3rd remote pressure gauge (231), the 3rd on-the-spot pressure gauge (232) through triplate line; The pipeline its lowest position is equipped with the 14 hand stop valve (226) in the liquid nitrogen supply system (200); First pneumatic stopping valve (201) links to each other with liquid nitrogen storage A (234), liquid nitrogen storage B (233) through pipeline with second pneumatic stopping valve (211); Be respectively time liquid valve of liquid nitrogen storage A (234), liquid nitrogen storage B (233), the unnecessary liquid nitrogen of the heat-sink system (100) of flowing through when being used for being controlled at heat-sink system (100) precooling is recovered to liquid nitrogen storage A (234) and liquid nitrogen storage B (233) through heat sink export pipeline system (600); Liquid nitrogen storage A outlet valve (235) is installed in liquid nitrogen storage A (234) top, is used for the gas release in the liquid nitrogen storage A (234), opens when needing venting, closes at ordinary times; Liquid nitrogen storage B outlet valve (236) is installed in liquid nitrogen storage B (233) top, is used for the gas release in the liquid nitrogen storage B (233), opens when needing venting, closes at ordinary times;
Heat sink entrance pipe system comprises the 17 hand stop valve (501); The 18 hand stop valve (502); The 19 hand stop valve (505); The 20 hand stop valve (506); The 21 manual stop valve (508); The 22 manual stop valve (509); The 23 hand stop valve (514); The 24 hand stop valve (515); The 25 hand stop valve (516); The 26 hand stop valve (517); The 3rd low-temperature safety valve (503); The 4th low-temperature safety valve (507); First pneumatic control valve (504); Second pneumatic control valve (510); The 3rd pneumatic control valve (511); The 4th pneumatic control valve (512); The 5th pneumatic control valve (513); Wherein, first pneumatic control valve (504) is connected to gate liquid helium heat sink (101) inlet through pipeline; Second pneumatic control valve (510) is connected to the anterior liquid helium of cabin body heat sink (102) inlet through pipeline; The 3rd pneumatic control valve (511) is connected to body rear portion, cabin liquid helium heat sink (103) inlet through pipeline; The 4th pneumatic control valve (512) is connected to end socket liquid helium heat sink (104) inlet through pipeline; The 5th pneumatic control valve (513) is connected to plume adsorption pump (105) inlet through pipeline; The 23 hand stop valve (514) institute is connected to gate liquid nitrogen heat sink (106) inlet through pipeline; The 24 hand stop valve (515) place branch road is connected to the anterior liquid nitrogen heat sink of cabin body (107) inlet; The 25 hand stop valve (516) is connected to body rear portion, cabin liquid nitrogen heat sink (108) inlet through pipeline; The 26 hand stop valve (517) is connected to end socket liquid nitrogen heat sink (109) inlet through pipeline; The 17 hand stop valve (501) is the master control valve of the heat sink and plume adsorption pump of each liquid helium.The 17 hand stop valve (501) one ends link to each other with the middle liquid nitrogen delivery line of liquid nitrogen supply system (200), and the other end connects three branch roads at the 18 hand stop valve (502), the 3rd pneumatic control valve (504), the 19 hand stop valve (505) place respectively; Wherein, four branch roads of the 18 hand stop valve (502) through pipeline and second pneumatic control valve (510), the 3rd pneumatic control valve (511), the 4th pneumatic control valve (512), the 5th pneumatic control valve (513) the place UNICOMs that enter the mouth; The 19 hand stop valve (505) links to each other with the 23 hand stop valve (514), the 24 hand stop valve (515), the 25 hand stop valve (516), the 26 hand stop valve (517) through gate liquid nitrogen heat sink (106) entrance pipe, anterior liquid nitrogen heat sink (107) entrance pipe of cabin body, body rear portion, cabin liquid nitrogen heat sink (108) entrance pipe and end socket liquid nitrogen heat sink (109) entrance pipe respectively, thus gate liquid helium heat sink (101) inlet and each liquid nitrogen heat sink is entered the mouth through pipeline UNICOM; The 20 hand stop valve (506) through pipeline with anterior liquid nitrogen heat sink (107) entrance pipe of cabin body, body rear portion, cabin liquid nitrogen heat sink (108), the end socket liquid helium is heat sink (104) entrance pipe and each liquid nitrogen heat sink entrance pipe UNICOM; The 21 manual stop valve (508) links to each other through the entrance pipe that the blowing pipeline is connected to second pneumatic control valve (510), the 3rd pneumatic control valve (511), the 4th pneumatic control valve (512), the 5th pneumatic control valve (513); The 22 manual stop valve (509) one ends are connected to the entrance pipe of second pneumatic control valve (510), the 3rd pneumatic control valve (511), the 4th pneumatic control valve (512), the 5th pneumatic control valve (513) through pipeline, and the other end is connected directly to atmosphere through pipeline; The 3rd low-temperature safety valve (503) is installed on gate liquid helium heat sink (101) entrance pipe, and the 4th low-temperature safety valve (507) is installed in and blows down on the pipeline;
Heat sink export pipeline system (600) comprises the 27 hand stop valve (602); The 28 hand stop valve (606); The 29 hand stop valve (613); The 30 hand stop valve (614); The 31 manual stop valve (615); The 32 manual stop valve (618); The 33 hand stop valve (621); The 34 hand stop valve (622); The 35 hand stop valve (623); The 36 hand stop valve (625); The 37 hand stop valve (626); The 38 hand stop valve (628); The 39 hand stop valve (630); First low-reading thermometer (601); Second low-reading thermometer (607); The 3rd low-reading thermometer (608); The 4th low-reading thermometer (609); The 5th low-reading thermometer (610); The 6th low-reading thermometer (611); The 7th low-reading thermometer (612); The 8th low-reading thermometer (632); The 5th low-temperature safety valve (605); The 6th low-temperature safety valve (616); The 7th low-temperature safety valve (617); The 8th low-temperature safety valve (624); The 9th low-temperature safety valve (627); The tenth low-temperature safety valve (629); The 11 low-temperature safety valve (631); The 4th remote pressure gauge (603); The 5th remote pressure gauge (619); The 4th on-the-spot pressure gauge (604); The 5th on-the-spot pressure gauge (620) and the 6th pneumatic control valve (633); Wherein, The 28 hand stop valve (606) one ends are through the straight-through atmosphere of pipeline; The other end connects liquid helium heat sink (101) outlet to the gate of the 5th low-temperature safety valve (605), the 27 hand stop valve (602), the 4th remote pressure gauge (603) in order through pipeline, forms gate liquid helium heat sink (101) outlet discharge pipe; The 27 hand stop valve (602) also links to each other with the 4th on-the-spot pressure gauge (604), first low-reading thermometer (601); The 33 hand stop valve (621) one ends are through the straight-through atmosphere of pipeline; After the other end connects the 32 manual stop valve (618), the 7th low-temperature safety valve (617) in order through pipeline; Be connected with six road pipelines respectively, the first via is connected to the anterior liquid helium of cabin body heat sink (102) outlet through second low-reading thermometer (607); The second the tunnel is connected to body rear portion, cabin liquid helium heat sink (103) through the 3rd low-reading thermometer (608) exports; Third Road is connected to end socket liquid helium heat sink (104) outlet through the 4th low-reading thermometer (609); The four the tunnel is connected to the big tube of plume adsorption pump (105) through the 29 hand stop valve (613), the 5th low-reading thermometer (610) exports; The five the tunnel is connected to the middle tube of plume adsorption pump (105) through the 30 hand stop valve (614), the 6th low-reading thermometer (611) exports; LIULUTONG is crossed the 31 manual stop valve (615), the 7th low-reading thermometer (612) is connected to the little tube outlet of plume adsorption pump (105); Said 32 manual stop valves (618) link to each other with the 5th remote pressure gauge (619), the 5th on-the-spot pressure gauge (620); The 6th pneumatic control valve (633) one ends are through the straight-through atmosphere of pipeline; The other end is connected with four road pipelines respectively after connecting the 8th low-reading thermometer (632), the 11 low-temperature safety valve (631), the 39 hand stop valve (630), the tenth low-temperature safety valve (629), the 38 hand stop valve (628), the 9th low-temperature safety valve (627) in order through pipeline, and four road pipelines are connected to gate liquid nitrogen heat sink (106), the anterior liquid nitrogen heat sink (107) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108), end socket liquid nitrogen heat sink (109) respectively; Through the 34 hand stop valve (622) the outlet discharge pipe of the outlet discharge pipe of the outlet discharge pipe of gate liquid helium heat sink (101), the anterior liquid helium of cabin body heat sink (102), body rear portion, cabin liquid helium heat sink (103), the end socket liquid helium is heat sink (104) outlet discharge pipe and the outlet discharge pipe of plume adsorption pump (105) are communicated with; Through the 35 hand stop valve (623), the 8th low-temperature safety valve (624), the 37 hand stop valve (626) is heat sink with each liquid helium, the outlet discharge pipe of plume adsorption pump and each liquid nitrogen heat sink is communicated with and forms pipe network system; Concrete Placement is: the 35 hand stop valve (623) one ends are communicated with the outlet discharge pipe of plume adsorption pump (105) through pipeline, and the other end connects the 8th low-temperature safety valve (624), the 37 hand stop valve (626) in order through pipeline and is connected between the 38 hand stop valve (628) and the tenth low-temperature safety valve (629) on the pipeline; The 8th low-temperature safety valve (624) is installed on the pipeline between the 35 hand stop valve (623) and the 37 hand stop valve (626); The 36 hand stop valve (625) one ends are connected between the 35 hand stop valve (623) and the 37 hand stop valve (626), and the other end leads directly to atmosphere; The 6th low-temperature safety valve (616) is installed on the 21 manual stop valve (615) entrance pipe; Pipeline between the 6th pneumatic control valve (633) and the 11 low-temperature safety valve (631) links to each other with second pneumatic stopping valve (221) with first pneumatic stopping valve (201) in the liquid nitrogen supply system (200);
Said subcooler system (300) comprises subcooler (316) and the 40 hand stop valve (301); The 41 manual stop valve (302); The 42 manual stop valve (305); The 43 hand stop valve (311); The 44 hand stop valve (312); The 45 hand stop valve (314); The 46 hand stop valve (315); The 9th low-reading thermometer (303); The tenth low-reading thermometer (313); The 7th pneumatic control valve (304); The 6th remote pressure gauge (306); The 7th remote pressure gauge (308); The 6th on-the-spot pressure gauge (307); The 7th on-the-spot pressure gauge (309) and the 3rd level meter (310); Wherein, The 40 hand stop valve (301) is the feed liquor and the make-up valve of subcooler system (300); The first low-temperature safety valve (229) is communicated with liquid nitrogen delivery line between the 12 manual stop valve (224) in one end and the liquid nitrogen supply system (200), and the other end is communicated with the interior supercooling tube road liquid feeding end of subcooler (316) main body through pipeline; The 9th low-reading thermometer (303) is arranged on ingress, supercooling tube road; The 7th pneumatic control valve (304) one ends are communicated with through the liquid nitrogen delivery line between the first low-temperature safety valve (229), the 12 manual stop valve (224) in pipeline and the liquid nitrogen supply system (200); The 3rd level meter (310) is installed on the subcooler (316); The 6th remote pressure gauge (306) is connected to outlet port, supercooling tube road with the 4th on-the-spot pressure gauge (307) through the 42 manual stop valve (305); On subcooler (316) main body, the 43 hand stop valve (311) is installed; On subcooler (316) main body, the 44 hand stop valve (312) is installed also; The 46 hand stop valve (315) is connected to outlet port, supercooling tube road through pipeline, and the 46 hand stop valve (315) also is connected in liquid nitrogen pump system (400) and the heat sink export pipeline system (600) between the 11 low-temperature safety valve (631) and the 39 hand stop valve (630) on the pipeline through pipeline; The 45 hand stop valve (314) one ends are connected on the 44 hand stop valve (312) and the intersubjective pipeline of subcooler (316) through pipeline, and the other end is connected on the pipeline between the 46 hand stop valve (315) and the heat sink export pipeline system (600); The tenth low-reading thermometer (313) is arranged on outlet port, supercooling tube road; The 41 manual stop valve (302) one ends are communicated with ingress, supercooling tube road through pipeline, and the other end is connected in the heat sink export pipeline system (600) on the pipeline between the 39 hand stop valve (630) and the tenth low-temperature safety valve (629) through pipeline;
Liquid nitrogen pump system (400) comprises fine filter (401); Liquid nitrogen pump A (407); Liquid nitrogen pump B (418); The 47 hand stop valve (403); The 48 hand stop valve (406); The 49 hand stop valve (408); The 50 hand stop valve (409); The 51 manual stop valve (410); The 52 manual stop valve (413); The 53 hand stop valve (417); The 54 hand stop valve (420); The 55 hand stop valve (419); The 12 low-temperature safety valve (402); The 13 low-temperature safety valve (416); The 11 low-reading thermometer (411); The 8th remote pressure gauge (404); The 9th remote pressure gauge (414); The 8th on-the-spot pressure gauge (405); The 9th on-the-spot pressure gauge (415); Low temperature flowmeter (412); Wherein, fine filter (401) is installed in liquid nitrogen pump system (400) entrance pipe place; Fine filter (401) one ends link to each other through the 46 hand stop valve (315) in pipeline and the subcooler system (300); Fine filter (401) the other end is equipped with the four-way pipeline; The first via connects the 48 hand stop valve (406), liquid nitrogen pump A (407), the 50 hand stop valve (409) in order through pipeline; The second the tunnel connects the 53 hand stop valve (417), liquid nitrogen pump B (418), the 54 hand stop valve (420) in order through pipeline; Third Road connects the 51 manual stop valve (410) through pipeline, and the three-way connection (pipe) road is connected in parallel to low temperature flowmeter (412) ingress through the four-way pipeline; The 49 hand stop valve 408 1 ends are communicated with the other end and atmosphere through pipeline with liquid nitrogen pump A407 export pipeline; The 55 hand stop valve 419 1 ends are communicated with the other end and atmosphere through pipeline with liquid nitrogen pump B418 export pipeline; The 8th remote pressure gauge (404) and the 8th on-the-spot pressure gauge (405) are installed in liquid nitrogen pump A (407), liquid nitrogen pump B (418) ingress, by the 47 hand stop valve (403) control start and stop.The 9th remote pressure gauge (414) and the 9th on-the-spot pressure gauge (415) are installed in liquid nitrogen pump A (407), liquid nitrogen pump B (418) outlet port, by the 52 manual stop valve (413) control start and stop; Liquid nitrogen pump A (407), liquid nitrogen pump B (418) two ends are equipped with the 48 hand stop valve (406), the 53 hand stop valve (417), the 50 hand stop valve (409), the 54 hand stop valve (420); The 11 low-reading thermometer (411) is installed on the export pipeline of liquid nitrogen pump A (407) and liquid nitrogen pump B (418); Low temperature flowmeter (412) is located on the export pipeline of liquid nitrogen pump A (407) and liquid nitrogen pump B (418); The 12 low-temperature safety valve (402), the 13 low-temperature safety valve (416) are installed in respectively on liquid nitrogen pump A (407) and liquid nitrogen pump B (418) the entrance and exit pipeline.
2. two heat sink enclosed liquid nitrogen transporting systems of large scale according to claim 1 is characterized in that: said gate liquid nitrogen heat sink (106), the gate liquid helium is heat sink (101), end socket liquid nitrogen heat sink (109) is the circular arc disk construction with end socket liquid helium heat sink (104).
3. two heat sink enclosed liquid nitrogen transporting systems of large scale according to claim 1, it is characterized in that: the anterior liquid nitrogen heat sink (107) of cabin body, the anterior liquid helium heat sink (102) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108) are columnar structured with body rear portion, cabin liquid helium heat sink (103).
4. two heat sink enclosed liquid nitrogen transporting systems of large scale according to claim 1; It is characterized in that: be in series with the 6th hand stop valve (206) and the 8th hand stop valve (208) on the pipeline of said first low-temperature solenoid valve (207) place, the 6th hand stop valve (206) lays respectively at first low-temperature solenoid valve (207) two ends with the 8th hand stop valve (208).Be in series with the 7th hand stop valve (216) and the 9th hand stop valve (218) on the pipeline of second low-temperature solenoid valve (217) place, the 7th hand stop valve (216) is positioned at second low-temperature solenoid valve (217) two ends with the 9th hand stop valve (218).
5. two heat sink enclosed liquid nitrogen transporting systems of large scale according to claim 1, it is characterized in that: the supply gas pressure of said first vaporizer (210), second vaporizer (220) is at 0.4～0.6MPa.
6. two heat sink enclosed liquid nitrogen transporting systems of large scale according to claim 1 is characterized in that: be in series with first hand stop valve (202), second hand stop valve (212) respectively on first pneumatic stopping valve (201) and second pneumatic stopping valve (211) the place pipeline.
7. two heat sink enclosed liquid nitrogen transporting systems of large scale according to claim 1, it is characterized in that: said the 43 hand stop valve (311) is installed in subcooler (316) main body top.
8. two heat sink enclosed liquid nitrogen transporting systems of large scale according to claim 1, it is characterized in that: said the 44 hand stop valve (312) is installed in subcooler (316) bottom part body.
9. based on a kind of motor plume testing operating method of the two heat sink enclosed liquid nitrogen transporting systems of the said large scale of claim 1, it is characterized in that: comprise following step:
Step 1: liquid nitrogen storage A (234) liquid nitrogen filling;
Open the 15 hand stop valve (227) and accomplish the liquid nitrogen filling of liquid nitrogen storage A (234), liquid nitrogen storage B (233) does not annotate;
Step 2: subcooler (316) main body liquid nitrogen filling;
Open the tenth hand stop valve (222), the 7th pneumatic control valve (304) and the 43 hand stop valve (311) successively and accomplish the liquid nitrogen filling of liquid nitrogen subcooler (316) main body; Crack the 7th pneumatic control valve of filling initial stage (304); Utilize the cold nitrogen of initial stage evaporation fully to blow down the air in subcooler (316) main body; Standard-sized sheet the 7th pneumatic control valve (304) and quick filling are up to specifying liquid level then; And according to the numerical value of the 3rd level meter (310), the aperture of remote adjustment the 7th pneumatic control valve (304) is to keep the constant of liquid level;
Step 3: each liquid nitrogen heat sink precooling;
Open the 40 hand stop valve (301), the 51 manual stop valve (410), the 23 hand stop valve (514), the 24 hand stop valve (515), the 25 hand stop valve (516), the 26 hand stop valve (517), the 38 hand stop valve (628), the 39 hand stop valve (630), the 6th pneumatic control valve (633) successively; Make liquid nitrogen enter into subcooler (316) internal pipeline; Utilizing the liquid nitrogen in subcooler (316) main body is through the liquid nitrogen cooling in subcooler (316) internal pipeline; Liquid nitrogen after the cooling enters into liquid nitrogen pump system (400) with subcooler (316) export pipeline; After entering into liquid nitrogen transporting system (500) at last; Realization is carried out precooling (cooling procedure from normal temperature to 77K) to gate liquid nitrogen heat sink (106), the anterior liquid nitrogen heat sink (107) of cabin body, body rear portion, cabin liquid nitrogen heat sink (108), end socket liquid nitrogen heat sink (109), and this process forms the open type precooling of each liquid nitrogen heat sink;
Step 4: each liquid helium is heat sink and plume adsorption pump (105) precooling;
Each liquid helium is heat sink and (105) precooling of plume adsorption pump and liquid nitrogen heat sink precooling are carried out simultaneously; Open the 12 manual stop valve (224), the 17 hand stop valve (501), the 18 hand stop valve (502), first pneumatic control valve (504), second pneumatic control valve (510), the 3rd pneumatic control valve (511), the 4th pneumatic control valve (512), the 5th pneumatic control valve (513), the 34 hand stop valve (622), the 35 hand stop valve (623), the 37 hand stop valve (626) successively; To gate liquid helium heat sink (101), cabin body anterior liquid helium heat sink (102), body rear portion, cabin liquid helium heat sink (103), the end socket liquid helium is heat sink (104), plume adsorption pump (105) carries out precooling (cooling procedure from normal temperature to 77K), this process forms the open type precooling of the heat sink and plume adsorption pump (105) of each liquid helium;
Step 5: liquid nitrogen storage A (234) is to the metaideophone of liquid nitrogen storage B (233);
Make full use of the low temperature nitrogen cold simultaneously for saving liquid nitrogen consumption; When beginning, precooling can directly close the 6th pneumatic control valve (633); Open second pneumatic stopping valve (211), second hand stop valve (212) of liquid nitrogen storage B (233) simultaneously; Utilize low temperature nitrogen precooling liquid nitrogen storage B (233) and reclaim unnecessary liquid nitrogen, all gas is all got rid of through nitrogen storage tank B outlet valve (236), and this process forms by the liquid nitrogen metaideophone process of liquid nitrogen storage A (234) to liquid nitrogen storage B (233);
Step 6: liquid nitrogen storage B (233) is to the metaideophone of liquid nitrogen storage A (234);
At each liquid helium in heat sink and plume adsorption pump (105) precooling process; When liquid nitrogen storage A (234) liquid nitrogen is exhausted; Close the tenth hand stop valve (222), second pneumatic stopping valve (211); Open the 11 manual stop valve (223), first pneumatic stopping valve (201), first hand stop valve (202), form by the liquid nitrogen metaideophone process of liquid nitrogen storage B (233) to liquid nitrogen storage A (234);
Step 7: heat-sink system (100) temperature regulation;
Regulate gate liquid nitrogen heat sink (106) temperature through the 23 hand stop valve (514); Utilize the 24 hand stop valve (515) to regulate anterior liquid nitrogen heat sink (107) temperature of cabin body; Utilize the 25 hand stop valve (516) to regulate body rear portion, cabin liquid nitrogen heat sink (108) temperature; Utilize the 26 hand stop valve (517) to regulate end socket liquid nitrogen heat sink (109) temperature; Utilize first pneumatic control valve (504) to regulate gate liquid helium heat sink (101) temperature; Second pneumatic control valve (510) is regulated anterior liquid helium heat sink (102) temperature of cabin body, utilizes the 3rd pneumatic control valve (511) to regulate body rear portion, cabin liquid helium heat sink (103) temperature, utilizes the 4th pneumatic control valve (512) to regulate end socket liquid helium heat sink (104) temperature; Utilize five pneumatic control valves (513), the 29 hand stop valve (613), the 30 hand stop valve (614), the 31 manual stop valve (615) to regulate plume adsorption pump (105) temperature, guarantee that each is heat sink even with plume adsorption pump (105) temperature;
Step 8: the closed cycle of each liquid nitrogen heat sink;
Treat each liquid nitrogen heat sink, after each liquid helium is heat sink and plume adsorption pump (105) temperature reduces to liquid nitrogen temperature 77K, each liquid nitrogen heat sink can get into closed cycle, at first; Open the 48 hand stop valve (406), the 49 hand stop valve (408) to the logical liquid nitrogen precooling of liquid nitrogen pump A (407); When there is the liquid nitrogen ejection in the 49 hand stop valve (408) outlet port, close the 49 hand stop valve (408), the 51 manual stop valve (410), open the 50 hand stop valve (409) simultaneously; Accomplish the startup of liquid nitrogen pump A (407); Secondly, close the 39 hand stop valve (630), open the 41 manual stop valve (302) simultaneously; Accomplish each liquid nitrogen heat sink by the transition of open type precooling to closed cycle, crack the 46 hand stop valve (315) supplies the system pipeline venting to use after the entering closed cycle;
Step 9: stop the liquid nitrogen supply of the heat sink and plume adsorption pump (105) of each liquid helium;
After treating that each liquid nitrogen heat sink gets into closed cycle fully, close the liquid nitrogen conveying that the 17 hand stop valve (501) stops and plume adsorption pump (105) heat sink to each liquid helium.
10. carrying out the satellite thermal vacuum test operating method based on two a kind of of heat sink enclosed liquid nitrogen transporting system of the said large scale of claim 1, it is characterized in that: comprise following step:
Step 1: liquid nitrogen storage A (234) liquid nitrogen filling;
Open the 15 hand stop valve (227) and accomplish the liquid nitrogen filling of liquid nitrogen storage A (234), liquid nitrogen storage B (233) does not annotate;
Step 2: subcooler (316) main body liquid nitrogen filling;
Open the tenth hand stop valve (222), the 7th pneumatic control valve (304) and the 43 hand stop valve (311) successively and accomplish the liquid nitrogen filling of liquid nitrogen subcooler (316) main body; Crack the 7th pneumatic control valve of filling initial stage (304); Utilize the cold nitrogen of initial stage evaporation fully to blow down the air in subcooler (316) main body; Standard-sized sheet the 7th pneumatic control valve (304) and quick filling are up to specifying liquid level then; And according to the numerical value of the 3rd level meter (310), the aperture of remote adjustment the 7th pneumatic control valve (304) is to keep the constant of liquid level;
Step 3: each liquid helium is heat sink and plume adsorption pump (105) precooling;
Open the 40 hand stop valve (301), the 51 manual stop valve (410), the 19 hand stop valve (505), the 20 hand stop valve (506), first pneumatic control valve (504), second pneumatic control valve (510), the 3rd pneumatic control valve (511), the 4th pneumatic control valve (512), the 5th pneumatic control valve (513), the 34 hand stop valve (622), the 35 hand stop valve (623), the 37 hand stop valve (626), the 39 hand stop valve (630), the 6th pneumatic control valve (633) successively; Make liquid nitrogen enter into subcooler (316) internal pipeline; Utilizing the liquid nitrogen in subcooler (316) main body is through the liquid nitrogen cooling in subcooler (316) internal pipeline; Liquid nitrogen after the cooling enters into liquid nitrogen pump system (400) with subcooler (316) export pipeline; After entering into liquid nitrogen transporting system (500) at last; Realization to gate liquid helium heat sink (101), cabin body anterior liquid helium heat sink (102), body rear portion, cabin liquid helium heat sink (103), the end socket liquid helium is heat sink (104), plume adsorption pump (105) carries out precooling, this process forms the open type precooling of the heat sink and plume adsorption pump (105) of each liquid helium;
Step 4: liquid nitrogen storage A (234) is to the metaideophone process of liquid nitrogen storage B (233);
Make full use of the low temperature nitrogen cold simultaneously for saving liquid nitrogen consumption; When beginning, precooling can directly close the 6th pneumatic control valve (633); Open second pneumatic stopping valve (211), second hand stop valve (212) of liquid nitrogen storage B (233) simultaneously; Utilize low temperature nitrogen precooling liquid nitrogen storage B (233) and reclaim unnecessary liquid nitrogen, all gas is all got rid of through nitrogen storage tank B outlet valve (236), and this process forms by the liquid nitrogen metaideophone process of liquid nitrogen storage A (234) to liquid nitrogen storage B (233);
Step 5: liquid nitrogen storage B (233) is to the metaideophone process of liquid nitrogen storage A (234);
At each liquid helium in heat sink and plume adsorption pump (105) precooling process; When liquid nitrogen storage A (234) liquid nitrogen is exhausted; Close the tenth hand stop valve (222), second pneumatic stopping valve (211); Open the 11 manual stop valve (223), first pneumatic stopping valve (201), first hand stop valve (202), form by the liquid nitrogen metaideophone process of liquid nitrogen storage B (233) to liquid nitrogen storage A (234);
Step 6: each liquid helium is heat sink and the temperature regulation of plume adsorption pump (105);
Regulate gate liquid helium heat sink (101) temperature through the 3rd pneumatic control valve (504); Utilize second pneumatic control valve (510) to regulate anterior liquid helium heat sink (102) temperature of cabin body; Utilize the 3rd pneumatic control valve (511) to regulate body rear portion, cabin liquid helium heat sink (103) temperature; Utilize the 4th pneumatic control valve (512) to regulate heat sink 104 temperature of end socket liquid helium; Utilize the 5th pneumatic control valve (513), the 29 hand stop valve (613), the 30 hand stop valve (614), the 31 manual stop valve (615) to regulate plume adsorption pump (105) temperature, guarantee that each liquid helium heat becomes even with plume adsorption pump (105) temperature;
Step 7: each liquid helium is heat sink and the closed cycle of plume adsorption pump (105);
Treat that each liquid helium is heat sink, after plume adsorption pump (105) temperature reduces to liquid nitrogen temperature 77K; Closed cycle be can get into, at first, the 48 hand stop valve (406), the 49 hand stop valve (408) opened the logical liquid nitrogen precooling of liquid nitrogen pump A (407); When there is the liquid nitrogen ejection in the 49 hand stop valve (408) outlet port; Close the 49 hand stop valve (408), the 51 manual stop valve (410), open the 50 hand stop valve (409) simultaneously, accomplish the startup of liquid nitrogen pump A (407); Secondly; Close the 39 hand stop valve (630), simultaneously open the 41 manual stop valve (302) gradually, accomplish that each is heat sink by the transition of open type precooling to closed cycle, get into closed cycle after crack the 46 hand stop valve (315) supply system pipeline venting usefulness.
CN2012100577768A 2012-03-07 2012-03-07 Large-sized double-heat-sink closed liquid nitrogen delivery system and working method thereof Expired - Fee Related CN102563350B (en)

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CN103438353A (en) * 2013-06-27 2013-12-11 北京航天发射技术研究所 Redundant gas supply loop
CN114551025A (en) * 2022-01-29 2022-05-27 中国科学院合肥物质科学研究院 Device for providing liquid helium forced flow cooling working medium
CN114719539A (en) * 2022-05-12 2022-07-08 中国航空研究院 Engine body precooling system and method applied to high-ultrasonic aircraft

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CN103438353A (en) * 2013-06-27 2013-12-11 北京航天发射技术研究所 Redundant gas supply loop
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CN114719539A (en) * 2022-05-12 2022-07-08 中国航空研究院 Engine body precooling system and method applied to high-ultrasonic aircraft
CN114719539B (en) * 2022-05-12 2023-09-22 中国航空研究院 Organism precooling system and method applied to hypersonic aircraft

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