The invention belongs to the technical field of temperature fatigue tests, and particularly relates to a liquid nitrogen heat exchange device. The device comprises a liquid nitrogen tank (1) and a liquid nitrogen heat exchanger (2), the liquid nitrogen heat exchanger (2) is provided with a first pipeline (23) communicated with a heat exchanger inlet (21) and a heat exchanger outlet (22), an outlet of the liquid nitrogen tank (1) is connected with a second pipeline (11), the middle part of the second pipeline (11) is located in the first pipeline (23), the second pipeline (11) is provided with a flow valve (12), and the flow valve (12) is connected with the liquid nitrogen tank (1). A temperature sensor (24) is arranged in the first pipeline (23), the liquid nitrogen heat exchange device further comprises a computer (3), and the computer (3) is electrically connected with the temperature sensor (24) and the flow valve (12) and is configured to adjust the opening degree of the flow valve (12) according to temperature data fed back by the temperature sensor (24). According to the invention, the cooling rate can be ensured, and the control precision is high.
本申请属于温度疲劳试验技术领域,特别涉及一种液氮换热装置。该装置包括液氮罐(1)、液氮换热器(2),所述液氮换热器(2)具有连通换热器入口(21)及换热器出口(22)的第一管路(23),所述液氮罐(1)出口连接第二管路(11),所述第二管路(11)的中间部分管路位于所述第一管路(23)内,所述第二管路(11)上设置有流量阀(12),所述第一管路(23)内设置有温度传感器(24),所述液氮换热装置还包括计算机(3),所述计算机(3)电连接所述温度传感器(24)及流量阀(12),且被配置成根据所述温度传感器(24)反馈的温度数据调节流量阀(12)的开度。本申请既可保证降温速率,又有较高的控制精度。
Liquid nitrogen heat exchange device
一种液氮换热装置
2023-09-29
Patent
Electronic Resource
Chinese
IPC: | F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / F25D REFRIGERATORS , Kühlschränke / F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
Liquid cooling heat dissipation and heat exchange system
European Patent Office | 2024
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