Abstract: A cooling system and a wind power generating set. The cooling system comprises two cooling sub-systems thermally coupled to each other. Each cooling sub-system comprises: a first cooling circuit for cooling a first heat-generating component, a second cooling circuit for cooling a second heat-generating component, a third cooling circuit for cooling a third heat-generating component, a fourth cooling circuit for cooling a fourth heat-generating component, a pump station unit and a heat dissipation unit. The first cooling circuit and the fourth cooling circuit are connected in parallel to form a first branch, the second cooling circuit and the third cooling circuit are connected in parallel to form a second branch, and the first branch and the second branch are connected in parallel, and are connected to the pump station unit and the heat dissipation unit. The cooling system may achieve the fault-tolerant operation of two cooling sub-systems.

Abstract: A cooling system and a wind-driven generator system. The cooling system comprising: a first cooling loop, a second cooling loop, a third cooling loop, a first heat exchanger and a second heat exchanger, wherein the first cooling loop comprises a first fluid pipeline and a first pump set; the second cooling loop comprises a second fluid pipeline and a second pump set, and the second fluid pipeline comprises a main path and a bypass; the third cooling loop comprises a third fluid pipeline and a third pump set, and the third fluid pipeline communicates with both the first heat exchanger and the second heat exchanger; the first heat exchanger is configured to thermally couple the first cooling medium, the second cooling medium and the third cooling medium to one another; the second heat exchanger is configured to thermally couple the second cooling medium to the third cooling medium.

Abstract: A cooling system, comprising: a heat exchange module, wherein the heat exchange module at least comprises a first channel and a second channel that are independent from each other; a first cooling circuit, wherein the first cooling circuit is connected to the first channel of the heat exchange module; and a second cooling circuit, wherein the second cooling circuit is connected to the first channel of the heat exchange module, and a first coolant in the first cooling circuit and/or a second coolant in the second cooling circuit can flow through the first channel of the heat exchange module so as to be used for performing heat exchange with a third coolant that flows through the second channel of the heat exchange module. According to the cooling system, the reliability of the cooling system can be improved by means of the design of dual cooling circuits.

Abstract: A cooling system and a wind power generating set. The cooling system comprises two cooling sub-systems thermally coupled to each other. Each cooling sub-system comprises: a first cooling circuit for cooling a first heat-generating component, a second cooling circuit for cooling a second heat-generating component, a third cooling circuit for cooling a third heat-generating component, a fourth cooling circuit for cooling a fourth heat-generating component, a pump station unit and a heat dissipation unit. The first cooling circuit and the fourth cooling circuit are connected in parallel to form a first branch, the second cooling circuit and the third cooling circuit are connected in parallel to form a second branch, and the first branch and the second branch are connected in parallel, and are connected to the pump station unit and the heat dissipation unit. The cooling system may achieve the fault-tolerant operation of two cooling sub-systems.

Abstract: A safety box comprises a paper pulp outer box (1) and a paper pulp inner box (2), where buckle holes (11) are provided in the two side edges of the paper pulp outer box respectively, the paper pulp inner box enters the paper pulp outer box from the inner box inlet and outlet opening (10), and outwardly protruding buckles (20) on the two side edges of the paper pulp inner box become fastened in the buckle holes arranged on the two side edges of the paper pulp outer box respectively, the wall thickness of the outwardly protruding buckles is equal to that of the paper pulp inner box, and the two outwardly protruding buckles oppositely deform inwards under external force so as to force the outwardly protruding buckles to be separated from the buckle holes while pushing out the paper pulp inner box.

Abstract: A cover (200) and a manufacturing method therefor. The cover (200) comprises a dispensing port (212), a detachable plug (250) that is located at the peripheral edge (230) of the cover (200) and integrally formed with the cover (200), and a recess (222). When a sealing structure is formed between the cover (200) and a cup (100), the dispensing port (212) is used for providing an outlet for contents present in the cup (100). The detachable plug (250) comprises a protrusion (255), and the protrusion (255) is used to form another sealing structure between the protrusion (255) and the dispensing port (212). The recess (222) is configured to be detachably coupled with the protrusion (255) so as to keep the detachable plug (250) in the vicinity of the cover (200) when the detachable plug (250) is not in use.

Abstract: A pulp molded folding spoon, comprising a holding portion (1) and a spoon bowl (2) connected to the front end of the holding portion (1). The holding portion (1) comprises an elongated sheet-like body (10); the front end of the sheet-like body (10) is connected to the opening of the spoon bowl (2); the sheet-like body (10) is provided with a Y-shaped folding line (11) distributed in the length direction of the sheet-like body (10); and a reinforcing rib I (12) is located between two opposite folding lines of the Y-shaped folding line (11). The structural strength can be improved and the service life can be prolonged.

Abstract: A connecting structure for a molded paper pulp cup cover comprising a tearable turnover flip cover integrally formed with and arranged on a cup cover plate, where a drinking hole is formed after the flip cover is overturned. The rear side of the flip cover is connected to the hole wall of the drinking hole by at least one turnover stress connection point; the circumferential side edge of the flip cover is connected to the drinking hole by a tear line that comprises a U-shaped section and arc-shaped sections located at the two ends of the U-shaped section; tearable connecting points are formed between the U-shaped section and the arc-shaped sections and a vertical distance from the tearable connecting points to the bottom of the U-shaped section is greater than a vertical distance from the tearable connecting points to the turnover stress connecting points.

Abstract: The present disclosure relates to a cooling system, an electric motor and a wind-power electric generator set. The cooling system is applied to an electric motor; the electric motor includes a stator support and a rotor support, the stator support is dynamically sealingly connected to the rotor support to form ventilation chambers respectively arranged at two ends of the electric motor in an axial direction, first ventilation holes are formed at two ends of the stator support in the axial direction respectively, and the cooling system includes: a flow-confluence chamber, arranged in a circumferential direction of the stator support; an accommodating chamber, arranged in the circumferential direction of the stator support; a heat exchanger, arranged in the accommodating chamber or in the flow-confluence chamber; a circulating fan, arranged in the circumferential direction of the stator support and located at a side of the stator support in the axial direction.

Abstract: The present disclosure relates to a cooling system, an electric motor and a wind-power electric generator set. The cooling system is applied to an electric motor; the electric motor includes a stator support and a rotor support; the stator support is dynamically sealingly connected to the rotor support to form a ventilation chamber arranged at an end of the electric motor in an axial direction; the cooling system includes a flow-confluence chamber, arranged in a circumferential direction of the stator support; an accommodating chamber, arranged in the circumferential direction of the stator support; a heat exchanger, arranged in the accommodating chamber or in the flow-confluence chamber; a circulating fan, arranged in the circumferential direction of the stator support and located at a side of the stator support in the axial direction.