3results about How to "Many channels" patented technology

The utility model discloses a kind of efficient energy-saving electric heating pipes, the device includes: pipe body, the pipe body one end is equipped with end cap, the end cap one end is equipped with two lead wires, the pipe body sequentially includes base layer, oxidation resistance layer, reflective heat insulation layer from inside to outside, the base layer inner wall is equipped with evenly distributed heat dissipation rib. The utility model has the advantages that: pipe body is sequentially set base layer, oxidation resistance layer and reflective heat insulation layer from inside to outside, reflective heat insulation layer is like a layer of "heat shield", can efficiently reflect the heat radiated outward in pipe body interior, heat is "intercepted" in pipe, reduce the dissipation of heat to surrounding environment, so that more heat can be concentrated for heating target object;Base layer inner wall is provided with the heat dissipation rib that is distributed in helical shape, this unique helical structure increases the surface area of base layer inner wall, provides more passageway and contact area for heat transfer, effectively reduces energy consumption, meets the environmental protection requirement of energy saving and emission reduction currently.

The utility model provides a kind of ultra-wideband multichannel miniaturized frequency conversion system comprising at least two frequency conversion modules, frequency conversion module includes connected broadband frequency conversion unit, down-conversion and intermediate frequency unit, broadband local oscillator source connected with broadband frequency conversion unit and with the down-conversion and intermediate frequency unit connection point frequency local oscillator source.The utility model designs the frequency conversion module of four channels of ultra-wideband miniaturization, can be equipped with channel number flexibly according to system actual demand, four channels design same, can be well guaranteed the consistency between multichannel.The utility model dynamic range is big and ultra-wideband flatness is good, and the receiving dynamic range of ultra-wideband multichannel miniaturized frequency conversion system is big, radio frequency link can realize more than 50dB's digital control attenuation, and intermediate frequency link can realize 31.5dB's digital control attenuation.Ultra-wideband flatness is good, and the whole ultra-wideband gain fluctuation is less than 2dB.The utility model radio frequency link selected component frequency all covers 0.1GHz~18GHz, realizes the working frequency of ultra-wideband.

The utility model relates to the technical field of filter pressing, in particular to a filter press with a filter cake displacement dewatering device, which comprises a casing, a row of filter plates are mounted in the casing, a sludge cavity is enclosed between the adjacent filter plates, a drainage cavity is arranged in each filter plate and communicated with a water outlet nozzle mounted on the filter plate, and the filter cake displacement dewatering device is mounted on the casing. The filter cake displacement precipitation device comprises a high-pressure air source and a main air pipe, the main air pipe is communicated with the drainage cavities of the different filter plates through the high-pressure air pipe, one end of the main air pipe is an air inlet end, the other end of the main air pipe is a water outlet end, a first pneumatic valve is installed at the air inlet end, a second pneumatic valve is installed at the water outlet end, and a third pneumatic valve is installed on a water outlet nozzle. A high-pressure air source is generated by a compressor, the compressor is communicated with an inlet of a three-way connector through an air supply pipe, an outlet of the three-way connector is communicated with a main air pipe and a branch pipe, the branch pipe is communicated with an air storage tank, the air storage tank is communicated with an air blowing pipe, and the air blowing pipe is communicated with a third pneumatic valve through a pu pipe.