CN-119503165-B - One-dimensional unfolding radiator based on bidirectional convection type single-phase fluid loop system

CN119503165BCN 119503165 BCN119503165 BCN 119503165BCN-119503165-B

Abstract

The invention provides a bidirectional convection type single-phase fluid loop system and a one-dimensional unfolding radiator, wherein the loop system comprises a radiator plate inner pipeline system and a radiator plate outer pipeline system, the radiator plate inner pipeline system is two paths of convection type single-phase fluid pipelines in the same dimension plane, the one-dimensional unfolding radiator comprises a bidirectional convection type single-phase fluid loop system, a radiator structure plate, a radiator suspension supporting structure and hinges, the radiator plate inner pipeline system is embedded in a middle interlayer, and the two radiator suspension supporting structures and the two hinges are symmetrically arranged on the same side of the radiator structure plate. The radiator has the advantages that under the limitation of the volume of the radiator after being unfolded, the radiating function is more efficient, the fluid pipeline converging and bundling interface is matched with the coaxiality control of the suspension supporting structure and the hinge, so that the unfolding reliability is improved, the plate inner skeleton type sandwich structure is light, and the sealing performance of a pipeline system is guaranteed by a full welding process.

Inventors

ZHANG JIAO
LI ZHIHUI
GAO XUEFENG
CHEN LI
PANG LE

Assignees

上海卫星装备研究所

Dates

Publication Date: 20260512
Application Date: 20241224

Claims (9)

1. A one-dimensional unfolding radiator based on a bidirectional convection type single-phase fluid loop system is characterized in that, The two-way convection type single-phase fluid loop system comprises a radiator plate inner pipeline system (2) and a radiator plate outer pipeline system (3), wherein the radiator plate inner pipeline system (2) is two paths of convection type single-phase fluid pipelines in the same dimension plane, each of the two paths of convection type single-phase fluid pipelines is of an S-shaped configuration and comprises an outer pipeline (21) and an inner pipeline (22), the outer pipeline (21) and the inner pipeline (22) are distributed in a convection direction, an outer single-phase fluid high-temperature outlet (211) of the outer pipeline (21) is correspondingly arranged with an inner single-phase fluid low-temperature inlet (221) of the inner pipeline (22), and an outer single-phase fluid low-temperature inlet (212) of the outer pipeline (21) is correspondingly arranged with an inner single-phase fluid high-temperature outlet (222) of the inner pipeline (22); The radiator plate external pipeline system (3) comprises a low-temperature single-phase fluid pipeline (31) and a high-temperature single-phase fluid pipeline (32), wherein the outlet of the low-temperature single-phase fluid pipeline (31) is respectively communicated with the inner single-phase fluid low-temperature inlet (221) and the outer single-phase fluid low-temperature inlet (212), the inlet of the high-temperature single-phase fluid pipeline (32) is respectively communicated with the outer single-phase fluid high-temperature outlet (211) and the inner Shan Xiangliu high-temperature outlet (222), and the heat exchanger, the low-temperature single-phase fluid pipeline (31), the radiator plate internal pipeline system (2) and the high-temperature single-phase fluid pipeline (32) are sequentially communicated to form a loop; The one-dimensional unfolding radiator further comprises a radiator structural plate (1), a radiator suspension supporting structure (4) and a hinge (6), wherein the radiator structural plate (1) is of a skeleton type sandwich structure and comprises an upper layer of skin, a lower layer of skin and a middle interlayer, and an inner pipe system (2) in the radiator plate is embedded in the middle interlayer; The two radiator suspension supporting structures (4) and the two hinges (6) are symmetrically arranged on the same side of the radiator structural plate (1), the radiator out-plate pipeline system (3) and the radiator suspension supporting structures (4) are arranged on the same side of the radiator structural plate (1), a channel is formed in the radiator suspension supporting structures (4), one ends of the two radiator suspension supporting structures (4) are respectively communicated with the low-temperature single-phase fluid pipeline (31) and the high-temperature single-phase fluid pipeline (32), and the other ends of the two radiator suspension supporting structures (4) are respectively communicated with a heat exchanger; The radiator suspension supporting structure (4) comprises a rotary joint (41) and a floating support (42), the rotary joint (41) and the floating support (42) are matched to form a revolute pair, the central shafts of the two rotary joints (41) and the rotating shafts of the two hinges (6) are coaxially arranged, the radiator suspension supporting structure (4) and the hinges (6) are fixedly connected with the radiator structural plate (1), and the radiator structural plate (1) can rotate around the central shaft of the rotary joint (41).
2. The one-dimensional unfolding radiator according to claim 1, characterized in that the radiator plate inner pipeline system (2) is installed in the radiator structural plate (1), the radiator plate outer pipeline system (3) is installed outside the radiator structural plate (1), and the outer single-phase fluid high-temperature outlet (211), the inner single-phase fluid low-temperature inlet (221), the inner Shan Xiangliu high-temperature outlet (222) and the outer single-phase fluid low-temperature inlet (212) are sequentially arranged on the same side of the radiator structural plate (1), and the outer pipeline (21) and the inner pipeline (22) are arranged in parallel and uniformly distributed with temperature control areas.
3. The one-dimensional unfolding radiator according to claim 1, characterized in that each of the outer pipeline (21) and the inner pipeline (22) comprises a plurality of straight pipelines (23) which are sequentially communicated, two adjacent straight pipelines (23) are connected through a right-angle elbow (24), the lumen of each straight pipeline (23) is in an elliptical configuration, a plurality of tooth channels which are uniformly distributed are formed in the lumen of each straight pipeline (23), and the tooth form is a convex rectangle.
4. A one-dimensional unfolding radiator as claimed in claim 1, characterized in that the intermediate layer comprises a plurality of carbon fiber composite rectangular tubes (11) for supporting the radiator plate inner tube system (2), the straight tubes (23) of the radiator plate outer tube system (3) are arranged in parallel or vertically with the composite rectangular tubes (11), the plurality of composite rectangular tubes (11) are matched to form a supporting framework of the radiator structural plate (1), and the initiating explosive device unlocking port (14) and the hinge mounting seat of the radiator structural plate (1) are respectively provided with bevel edge supporting and reinforcing rectangular tubes.
5. The one-dimensional unfolding radiator according to claim 1, characterized in that the radiator suspension supporting structure (4) is symmetrically arranged around a central axis of the radiator structural plate (1), a plate structure protrusion (16) is formed in the middle of one side, connected with the radiator suspension supporting structure (4), of the radiator structural plate (1), composite material embedded blocks (13) are symmetrically arranged on the plate structure protrusion (16), the composite material embedded blocks (13) comprise suspension supporting structure embedded blocks (131) and hinge embedded blocks (132), the hinge embedded blocks (132) are arranged on the inner sides of the suspension supporting structure embedded blocks (131), the hinge embedded blocks (132) are fixedly connected with the hinges (6), and the suspension supporting structure embedded blocks (131) are fixedly connected with the rotary joints (41).
6. The one-dimensional unfolding radiator as claimed in claim 5, characterized in that the low-temperature single-phase fluid pipeline (31) is arranged on the lower side of the plate structure protrusion (16), the high-temperature single-phase fluid pipeline (32) is arranged on the upper side of the plate structure protrusion (16), the low-temperature single-phase fluid pipeline (31) and the high-temperature single-phase fluid pipeline (32) are arranged in parallel with the radiator structural plate (1), the distance between the low-temperature single-phase fluid pipeline (31) and the high-temperature single-phase fluid pipeline (32) is consistent with the distance between the radiator structural plate (1), two ends of the low-temperature single-phase fluid pipeline (31) and the high-temperature single-phase fluid pipeline (32) are respectively communicated with the radiator plate inner pipeline system (2), and three-way connectors (33) which are respectively arranged in the middle of the low-temperature single-phase fluid pipeline (31) and the high-temperature single-phase fluid pipeline (32) are respectively communicated with the radiator suspension supporting structure (4).
7. The one-dimensional unfolding radiator according to claim 6, characterized in that the floating support (42) comprises two floating support rings (421) and a plurality of universal joints formed by matching cross pins (422), the floating support (42) comprises a first floating support and a second floating support which are respectively arranged at two sides of the rotary joint (41), the first floating support is in fastening connection with the floating support structure buried block (131), and the second floating support is in fastening connection with a star.
8. The one-dimensional unfolding radiator according to claim 7, characterized in that the rotary joint (41) comprises an inner channel (411) and an outer channel (412), one end of the inner channel (411) is inserted into one end of the outer channel (412) and is connected with the inner channel by a sealing ring (413) in a sealing way, and the other ends of the inner channel (411) and the outer channel (412) are provided with rigid ball sealing mouths (414).
9. A one-dimensional spread radiator as claimed in claim 6, characterized in that the side edges of the plate structure protrusions (16) are provided with a plurality of clip brackets (5) for supporting the pipelines of the radiator plate external pipeline system (3), the clip brackets (5) and the radiator plate external pipeline system (3) are arranged on the same vertical plane, the clip brackets (5) are symmetrically arranged up and down with respect to the radiator structure plate (1), the clip brackets (5) are symmetrically arranged left and right with respect to the symmetry axes of the two hinges (6), the clip brackets (5) positioned at the center are arranged on the symmetry axes of the two hinges (6), and the distances between the clip brackets (5) positioned at two ends and the corresponding external single-phase fluid high-temperature outlets (211) and external single-phase fluid low-temperature inlets (212) are between 250 mm and 300 mm.

Description

One-dimensional unfolding radiator based on bidirectional convection type single-phase fluid loop system Technical Field The invention relates to the technical field of spacecraft thermal control, in particular to a bidirectional convection type single-phase fluid loop system and a one-dimensional unfolding radiator. Background Along with the trend of complex flying orbit environment of the spacecraft, the load carrying function is gradually increased and the operation precision is high, so that the overall heat power consumption of the spacecraft is increased, and the conventional passive heat control mode cannot be met in order to meet the heat control requirement of load operation and ensure the high precision of a structural platform. The radiator radiating mode used gradually can enhance the radiating capability, but the radiating channel arrangement mode which is more efficient is distributed on the same limited size area after the radiator is unfolded while the radiator area is increased to break through the envelope size of the fairing, and the mode of balancing the high-tightness fluid pipeline and the unfolding torque is more reliably solved, so that the radiator radiating mode is a problem to be further solved. The prior Chinese patent with publication number CN103274061B discloses a heat pipe-fluid circuit coupled heat radiator for spacecraft. The radiator is a plate radiator which is attached to a structural platform, does not have a unfolding function, is just a heat pipe, and is connected with fluid pipelines at two sides of the heat pipe in a welding or cementing mode. The method does not form a normal loop of the fluid pipeline, and the heat dissipation capacity and the thermal control aspect still need to be improved. The prior art chinese patent publication No. CN114852378a discloses an expandable heat radiator based on a single-phase fluid circuit. The prior Chinese patent with publication number CN112484541B discloses a rotary space radiation heat exchanger. All are in a unidirectional S-shaped layout of the single-phase fluid pipeline, and the state utilization rate of the single-phase fluid in the cooling fluid direction is not further developed in the layout mode. Therefore, it is desirable to provide a bidirectional convection type single-phase fluid loop system and a one-dimensional expansion radiator, which can improve the utilization rate of heat dissipation capacity under the limitation of the same radiant panel volume after the radiator is expanded. Disclosure of Invention In view of the drawbacks of the prior art, an object of the present invention is to provide a bidirectional convection type single-phase fluid circuit system and a one-dimensional expansion radiator. The invention provides a bidirectional convection type single-phase fluid loop system, which comprises a radiator plate inner pipeline system and a radiator plate outer pipeline system, wherein the radiator plate inner pipeline system is of an S-shaped configuration and comprises an outer pipeline and an inner pipeline, the outer pipeline and the inner pipeline are in convection direction layout, an outer single-phase fluid high-temperature outlet of the outer pipeline is arranged corresponding to an inner single-phase fluid low-temperature inlet of the inner pipeline, and an outer single-phase fluid low-temperature inlet of the outer pipeline is arranged corresponding to an inner single-phase fluid high-temperature outlet of the inner pipeline; The radiator plate external pipeline system comprises a low-temperature single-phase fluid pipeline and a high-temperature single-phase fluid pipeline, wherein the outlet of the low-temperature single-phase fluid pipeline is respectively communicated with the inner single-phase fluid low-temperature inlet and the outer single-phase fluid low-temperature inlet, the inlet of the high-temperature single-phase fluid pipeline is respectively communicated with the outer single-phase fluid high-temperature outlet and the inner single-phase fluid high-temperature outlet, and the heat exchanger, the low-temperature single-phase fluid pipeline, the radiator plate internal pipeline system and the high-temperature single-phase fluid pipeline are sequentially communicated to form a loop. Preferably, the radiator plate inner pipeline system is installed in the radiator structural plate, the radiator plate outer pipeline system is installed outside the radiator structural plate, the outer single-phase fluid high-temperature outlet, the inner single-phase fluid low-temperature inlet, the inner single-phase fluid high-temperature outlet and the outer single-phase fluid low-temperature inlet are sequentially arranged on the same side of the radiator structural plate, and the outer pipeline and the inner pipeline are arranged in parallel and uniformly distributed with temperature control areas. Preferably, the outer pipeline and the inner pipeline comprise a plurality of straight pipelines