34results about How to "Not affected by outside temperature" patented technology

The invention discloses a micro-current measuring circuit for dielectric response tests; the micro-current measuring circuit comprises a logarithm operation unit, a linear optical coupler unit, an index operation unit, and a signal secondary amplification unit connected in sequence; the logarithm operation unit comprises an ultra low bias current amplifier and a negative feedback element; the linear optical coupler unit comprises a linear optical coupler chip and a negative feedback circuit; the index operation unit comprises a high speed operation amplifier and a photosensitive diode; the micro-current measuring circuit has no feedback resistor, so the measuring result cannot be affected by a resistance temperature coefficient, thus providing high temperature drift influence inhibition ability, and the temperature coefficient can reach 100ppm/C.

The invention discloses a new protective cover device for a pipeline and an installation method of the new protective cover device. The device is used for sleeving the pipeline (7) to play a role of heat insulation protection, and comprises a main protective part (8) taken as a larger segment part section cylinder and a cover body part (4) taken as a smaller segment part section cylinder which can be combined to form a cylinder, wherein elastic vertically-opposite platform pipe fittings (81, 41) are symmetrically arranged at the bottom of the main protective part (8) and the top of the cover body part (4), and elastic clamp components (82) are symmetrically arranged on two relative sides in the diameter direction of the main protective part (8), so that the two elastic vertically-opposite platform pipe fittings (81, 41) can clamp the pipeline (7) in the vertical direction.

The invention discloses a television packaging box for transportation. The television packaging box comprises a box body, a plurality of supporting legs are arranged at the bottom of the box body, a sealing plate movably connected with one side of the outer wall of the box body, and a plurality of fasteners are arranged on the outer sides of opening ports, on outer walls, of the box body in a matched mode; a heat dissipation layer is arranged on the inner wall of the box body, the heat dissipation layer comprises a first liquid storage layer and a second liquid storage layer, wherein a liquidadding port and a liquid discharging port are formed in one side of the outer wall of the heat dissipation layer; a baseboard is arranged at the bottom of the inner side of the box body, a conveying frame movably connected is arranged above the baseboard inside the box body in a matched mode, and a plurality of pulleys and a first buffering piece are arranged at the bottom of the conveying frame;and supporting plates are symmetrically arranged on the two sides of the inner wall of the box body, sliding rails are symmetrically arranged on adjacent sides of the outer wall of the two supportingplates, a second buffering piece which is movably connected is arranged between the two supporting plates, and a mounting frame is arranged at the top of the second buffering piece. According to the packing box, packaging and disassembly of the television package is convenient and fast, protection capability is good, a television can be prevented from being affected by an external temperature, andthe packaging box can be recycled and reused.

The invention discloses an agricultural production waste closed aerobic sub-high-temperature microorganism fermentation seven-day fertilizer-making method and device. According to the method and device, a fermentation gas fairing is used based on a conventional fermentation tank, the fermentation tank is integrally closed, fermentation gas circulation and fresh air distribution are regularly performed by the aid of a fermentation gas circulation and air distribution system, the fermentation temperature of a fermented object in the fermentation tank reaches 50-55 DEG C within 10-20 hours undercombined action of fermentation gas circulation, fresh air distribution and fermentation preparations and cannot be affected by outside temperature, the fermented object is transferred to a discharging end from a feeding end of the fermentation tank during fermentation, sub-high-temperature closed aerobic fermentation at the fermentation temperature of 60-65 DEG C is kept (limit temperature is less than 65 DEG C), an integrated process is seven days, raw materials such as agricultural waste (animal and plant residual bodies and breeding organism manure) are sufficiently and harmlessly treatedto obtain an excellent fermented organic fertilizer or microorganism organic fertilizer.

The invention discloses a fully-insulated and fully-sealed solid-cabinet fuse tube. The fully-insulated and fully-sealed solid-cabinet fuse tube comprises a tube body and a connecting part, wherein a guiding component is fixedly mounted inside the inner cavity of the tube body; a plurality of guiding holes are formed in the guiding component; at least one lattice bar capable of axially moving along the guiding hole is arranged inside each guiding hole; an elastic component or an oppositely-homopolar magnetic component is further arranged inside the inner cavity of the tube body; one end of the elastic component or the magnetic component is in contact with the top of the inner cavity of the tube body, and the other end of the elastic component or the magnetic component is in contact with the lattice bar; when the fuse tube is not in use, the upper end part of the lattice bar is propped against the upper surface of the guiding component under the action of the elastic component or the oppositely-homopolar magnetic component. The fully-insulated and fully-sealed solid-cabinet fuse tube is simple in structure, low in cost, and stable and reliable in working state, saves the space, can assemble and disassemble tightening components with different specifications and cover all the tightening components, and can meet a using requirement; in an aspect of matching with other tools, through a standard interface, the fully-insulated and fully-sealed solid-cabinet fuse tube is also applicable for connecting parts of almost all the existing electric wrenches, pneumatic wrenches and manual wrenches, so that the application range of the fully-insulated and fully-sealed solid-cabinet fuse tube is widened and the adaptability of the fully-insulated and fully-sealed solid-cabinet fuse tube is improved.

The invention relates to a method for detecting the heat dissipation performance of a cable conduit. A temperature control box for detecting the heat dissipation performance of the cable conduit is arranged. The method comprises the following steps: step one, detecting a conduit segment sample; step two, fixing the conduit segment sample; step three, heating the conduit segment sample; and step four, cooling the conduit segment sample. According to the invention, the method has the following advantages: since the conduit segment sample heating and cooling are carried out in the temperature control box and the temperature control box can ensure the constant temperature inside the box, the temperature of the conduit segment sample is not affected by external factors during the heating and cooling processes, so that the accuracy of the temperature detection is improved and thus the heat dissipation performance of the conduit segment sample is obtained rapidly and the detection process issimplified. Moreover, the heat dissipation performances of conduit segment sample in different environments are simulated by setting the temperature in the temperature control box, so that the practical performance is good.

Disclosed is a constant-temperature insulation steel silo. A common steel silo is already widely used as being low in cost and fast in construction and is unsuitable for long-term storage of grain and only suitable for revolving as not having an insulation function. The constant-temperature insulation steel silo is composed of a foundation (1) and a silo body (2) connected with the foundation, an insulation layer (3) is fixed to the outer side of the silo body through connectors, a peripheral plate (4) is fixed on the insulation layer or the silo body through supports, and the insulation layer and the peripheral plate form an air heat-insulation course. The constant-temperature insulation steel silo is used as a granary for long-term grain preservation.

The invention discloses an aircraft fuel tank capable of automatically adjusting the temperature of a tank, relating to the technical field of aircraft fuel tanks, include a housing, the lower surfaceof the shell is fixedly connected with the upper surface of the bottom plate, The upper surface of the shell is communicated with the lower end of the feeding port, and the upper surface of the shellis fixedly connected with a supercharger. The left side of the shell is provided with a supercharger valve and a pressure reducing valve, and the supercharger valve is positioned above the pressure reducing valve, and the left side of the shell is provided with a safety valve, and the safety valve is positioned above the supercharger valve. Which can automatically adjust the temperature of the tank, through the booster valve, Pressure relief valve, turbocharger, Liquid nitrogen tank, vacuum layer, valve, vacuum layer, conduit and sealed tank cooperate with each other. When liquid nitrogen changes from liquid to gas in vacuum layer, it will absorb heat from the surface of fuel tank body, and nitrogen gas will be discharged from the valve to take away heat from the surface of fuel tank body, so as to regulate the temperature of fuel tank body, thus ensuring that the fuel tank body of aircraft is not affected by external temperature.