6results about How to "Fast temperature response" patented technology

The application discloses a flexible multifunctional electromagnetic shielding film and a preparation method and application thereof. The electromagnetic shielding film comprises a carbon nanotube film, a high magnetic permeability layer and a high electrical conductivity layer combined with a first surface and a second surface of the carbon nanotube film respectively, and the electrical conductivity of the high magnetic permeability layer, the carbon nanotube film and the high electrical conductivity layer increases in turn, and the magnetic permeability decreases in turn. The application provides an electromagnetic shielding material with a three-layer structure. Due to the difference in the electrical conductivity and the magnetic permeability of the materials between the three layers, the electromagnetic wave experiences an 'absorption-reflection-reabsorption' process after entering the material, so that the material presents a low reflection characteristic. The Joule heating performance of the electromagnetic shielding film is good, the temperature response speed is fast when a voltage is applied, the stability of the electromagnetic shielding film during heating is excellent, the electromagnetic shielding film can remain stable for a long time, and the electromagnetic shielding film shows great application potential in the electromagnetic protection field and the thermal management field of high-integration electronic equipment.

Embodiments of the present application relate to an electronic device and a heat insulation module. The electronic device includes a housing, a sensing module, and a heat insulation module. The sensing module includes a circuit board and a sensing unit and a heating unit disposed on the circuit board. The heating unit is configured to heat the sensing unit. The heat insulation module is housed in the housing and includes a housing assembly and a heat insulation filler. The sensing module is housed in the housing assembly. The heat insulation filler is disposed between the circuit board of the sensing module and an inner wall surface of the housing assembly and contacts and covers the heating unit.

The application relates to a replaceable optical fiber monitoring cable and a replacement method thereof, and belongs to the technical field of optical fiber monitoring. Step one: when the optical fiber in the monitoring cable needs to be replaced, a part of the outer tube, the stainless steel wire layer and the inner tube at one end of the monitoring unit in the monitoring cable are peeled off in sequence, so that one end of the optical fiber unit to be replaced is exposed; step two: aramid yarn at one end of the exposed optical fiber unit to be replaced is peeled off, and the peeled aramid yarn and aramid yarn in the optical fiber unit to be installed are uniformly wound together, and the two are integrated; step three: the other end of the optical fiber unit to be replaced is uniformly pulled out, and the optical fiber unit to be replaced is uniformly wound on the take-up frame at a constant speed; the optical fiber unit to be installed is uniformly released through the pay-off frame at a constant speed, the optical fiber unit to be installed is pulled and introduced into the monitoring cable, and the replacement of the optical fiber is realized. The application can quickly replace the optical fiber, saves time and effort, and ensures that online monitoring can be continuously carried out during the use of the overhead cable.

This invention provides a fast-response fluid temperature sensor based on fiber optic sensing. The structure comprises three parts: a variable-diameter tube, a column, and a fiber optic temperature sensor. As the fluid enters the variable-diameter tube and transitions from a wider to a narrower section, Bernoulli's principle causes the pressure to decrease and the flow velocity to increase as the tube diameter narrows. This results in faster heat exchange at the fiber optic temperature sensor, thus accelerating the temperature response. In the fiber optic temperature sensor, a through-hole with wider ends and a narrower center is designed in the middle of the fiber. The fiber core is placed next to the through-hole, increasing the heat exchange area of ​​the sensor. Furthermore, Bernoulli's principle increases the fluid velocity at the narrower center, further accelerating heat exchange between the fiber optic temperature-sensitive element and the surrounding fluid, thus further speeding up the temperature response.

The invention relates to the technical field of medical equipment, and provides an intraoperative automatic flushing water device and an intraoperative flushing water temperature control method. The first sterile liquid bag is arranged in the heating box, and the second sterile liquid bag is arranged in the normal temperature box; the heating module is used for heating the first sterile liquid bag in the heating box; the first water suction pump and the second water suction pump are used for sucking sterile liquid in the first sterile liquid bag and the second sterile liquid bag through pipelines respectively; the mixing pipeline assembly is connected with the first water suction pump and the second water suction pump and is used for mixing the heated sterile liquid and the normal-temperature sterile liquid which are sucked by the water suction pumps; the disposable flushing pipeline is detachably connected with the water outlet connector of the mixing pipeline assembly, mixed sterile liquid in the mixing pipeline assembly is conveyed to the water gun, and intraoperative flushing is conducted through the water gun. The double-pump proportional mixing temperature control principle is adopted, the thermal inertia limitation of a traditional direct heating mode is broken through, and accurate, rapid and dynamic adjustment of the temperature and the flow speed of flushing fluid is achieved.

This invention belongs to the field of fuel cell thermal management technology, and particularly relates to a battery cooling system and its control method based on a microtube bundle heat exchanger and countercurrent collision jet atomization. The system includes: a fuel cell stack, a microtube bundle heat exchanger connected to the fuel cell stack via a coolant circulation loop, a cathode drainage recovery unit, and a countercurrent collision jet atomization unit comprising a fan and an atomizing spray module. The fan, atomizing spray module, and microtube bundle heat exchanger are arranged sequentially. The airflow direction generated by the fan rotation and the direction of the water mist sprayed by the atomizing spray module are opposite to each other, so that the water mist sprayed by the atomizing spray module initially moves towards the direction of the fan. After its speed decreases to zero, it is driven by the airflow generated by the fan to move in the opposite direction and flows through the gaps within the microtube bundle heat exchanger, serving as shell-side fluid to cool the tube-side fluid within the microtube bundle heat exchanger.