48results about How to "Effectively brought out" patented technology

The invention provides a cooling structure of a crankcase of a directly coupled type air compressor. The cooling structure comprises a cooling fan, a cover shell, a motor stator, a motor rotor, a crankcase and a gas cylinder, wherein the motor stator and the gas cylinder are fixedly connected with the crankcase; a gas inlet and a gas outlet are arranged between the crankcase and the motor stator;the cooling wind generated by the cooling fan is forced to pass through a heat dissipation channel arranged in an area between the motor stator and the crankcase from the gas inlet and then discharged from the gas outlet; and a heat insulating pad is arranged on a joint between the gas cylinder and the crankcase. The invention adopts a forced ventilation cooling structure to allow the cooling wind to cross, laterally pass, penetrate, reflux or crossly pass the area between the motor and the crankcase, so that the heat generated by the motor stator and the motor rotor and the partial heat already absorbed by the crankcase can be effectively brought away from the gas outlet; and because the heat insulating pad is arranged on the joint between the gas cylinder and the crankcase, the heat of the gas cylinder can be effectively avoided from being transferred to the crankcase, so that the temperature of the crankcase is reduced.

The invention discloses a method for preparation of phenolic resin by a two-phase technique. The method involves an organic solvent and a water solvent. Phenol and aldehyde are adopted as reactants, and a strong acid is taken as a catalyst. The reactants and the catalyst undergo reaction at the interface between the organic solvent and the water solvent to prepare the low molecular weight phenolic resin with narrow molecular weight distribution. The method provided by the invention uses the strong acid as the catalyst to shorten the reaction time, and the use of the strong acid as the catalyst has no adverse effect on subsequent use. The prepared phenolic resin is easy to disperse during application and can achieve even distribution.

The invention provides a blowing system and blowing method for a fuel cell. The blowing system comprises a sensor group, an air pump and a system controller, wherein the sensor group comprises a cell stack temperature sensor and an environmental temperature sensor, the cell stack temperature sensor is arranged in a fuel cell stack, and the environmental temperature sensor is arranged outside the fuel cell stack; the air pump is connected to an air inlet pipeline of the fuel cell stack; and the system controller is used for receiving a measuring signal transmitted from the sensor group and controlling the on / off of the air pump according to the measuring signal. By the above blowing system, water in the cell stack can be effectively carried out, and the internal temperature of the fuel cell stack is reduced; the internal temperature of the fuel cell stack and the environmental temperature of the system are measured to judge whether the fuel cell stack is effectively blown or not; and the blowing of the fuel cell stack is stopped according to a judgment result, the blowing time of the fuel cell stack is effectively reduced, the energy consumption of the blowing system is reduced, and the reliability and the stability of the blowing system are improved.

The invention discloses a PVC pipeline processing anti-blocking extrusion production equipment, which comprises a machine case, a traction track, a rubber block seat, and a rubber block. The traction track is provided with two crawler joints installed through the casing and distributed up and down. connection, the traction track is mechanically connected to the chassis, and the rubber block is fixed on the traction track through the rubber block seat. Fix the traction track at the upper end. When the clamping force becomes loose in the present invention, the pressure of the sliding part on the PVC pipe will become smaller, and the counterweight composed of the triangle and the triangle will slide down. The sliding parts slide down synchronously, press down the traction track fixed by it, shorten the two traction gaps, so as to improve the clamping force on the PVC pipe, make the compression ratio and clearance meet the requirements, and effectively pull out the produced pipe .

The invention discloses a multi-vane anisotropic turbulent flow type low-pressure and self-balancing slurry degassing device. According to the multi-vane anisotropic turbulent flow type low-pressure and self-balancing slurry degassing device, a main body is composed of a multi-vane anisotropic turbulent flow generator and a low-pressure double-balance automatic accommodometer. The multi-vane anisotropic turbulent flow generator is provided with an agitating shaft, four sets of anisotropic vanes, an agitating barrel, a gas inlet guide pipe and a gas outlet guide pipe; the low-pressure double-balance automatic accommodometer is provided with a double-sleeve three-way closed glass outer pipe, a two-way glass inner pipe and a differential pressure balancing adjusting medium. According to the multi-vane anisotropic turbulent flow type low-pressure and self-balancing slurry degassing device, due to the design of non-equal-length backward vanes and a double-sleeve three-way gas quantity self-balancing compensation device, low-quantity gas carried by slurry can be agitated sufficiently and degassed; under the condition of ultralow gas quantity, the double-sleeve three-way gas quantity self-balancing compensation device can effectively carry away trace gas in the slurry. Therefore, the multi-vane anisotropic turbulent flow type low-pressure and self-balancing slurry degassing device is suitable for degassing the conventional slurry, is particularly suitable for degassing the slurry with great slurry density, many organic additives, great viscosity and small gas content, is complete in structure, is strong in adaptability and has a very good degassing effect.