49results about How to "Freezing will not occur" patented technology

The invention discloses an injection mold for quick cooling and convenient demolding. The injection mold comprises a first electric extension rod, an unloading hopper and a limiting rod; a second electric extension rod is arranged in middle of the first electric extension rod; a first cooling pipe is arranged on the outer side of the second electric extension rod; the front end of the first cooling pipe is connected with a movable template; the outer side of the movable template is connected with a support frame through a slide rod; a fixed template is fixed on the inner side of the support frame; an injection molding pipe is connected to the back side of the fixed template; the lower end of the unloading hopper is connected with an injection molding pipe; a motor is mounted on the right side of the injection molding pipe; a support main body is arranged below the injection molding pipe; and a conveying belt is arranged on the left side of the support main body. The injection mold forquick cooling and convenient demolding is provided with a first cooling pipe and a second cooling pipe, and can accelerate the cooling molding work through the first cooling pipe and the second cooling pipe to improve the overall working efficiency and the overall functionality.

The invention relates to a top water bath split type solar water heating device, in particular to a single-apartment solar heat collector which realizes centralized arrangement. The invention consists of a watertight heat collector, a bearing indoor water tank, a heat exchange circulating pipe network, various control parts and an intelligent control system. The topside of the product is provided with the watertight heat collector; an emptied pipeline is arranged between an upper circulating water pipeline and a lower circulating water pipeline. An emptied electromagnetic valve is arranged on the emptied pipeline. The underside of the emptied pipeline is provided with an accumulated water discharge pipeline. Each heat collecting pipe is provided with a metal heat exchange pipe. The single-apartment solar heat collector has a compact structure and complete functions and solves a series of problems that the prior product has messy arrangement, influences city appearance, destroys a waterproof lay surface on the top of the building, wastes mass cool water energy discharged in use and causes pipe explosion, water leakage, easy ignition and combustion of a tracing band, etc. because of the phenomena of the temperature difference of feeding water, stream distillation, freezing and plugging and stream expansion, etc. The single-apartment solar heat collector is a perfect solar water heating device.

The invention discloses a pneumatic draining valve for a locomotive air source system filter. The pneumatic draining valve comprises a shell provided with a filter port, a sewage storage cavity, a draining passage and a piston cavity. A gas cavity which can be inflated and deflated is formed between a piston and the right end of the piston. The piston is of a dumbbell shape and includes a left piston part, a right piston part and a middle load bearing part. The middle load bearing part is provided with a left stress face and a right stress face. The area of the left stress face is smaller than that of the right stress face. By the pneumatic draining valve, long exhaust when an electromagnetic draining valve is used is eliminated. Due to the fact that no elastic components are used and only air pressure is used to push the valve element (namely the piston) to move, blocking, caused by elastic component failure, of the existing pneumatic draining valves is eliminated. The application environmental temperature range of the draining valve is widened by a heating rod. In addition, the pneumatic draining valve is simple in structure and low in cost, and use and maintenance cost are lowered.

The invention discloses a closed-loop circulation drying system based on two-stage solution dehumidification. The system comprises a drying medium circulation subsystem, a first-stage solution dehumidification-regeneration circulation subsystem, a second-stage solution dehumidification-regeneration circulation subsystem, a first heat pump circulation subsystem and a second heat pump circulation subsystem. The two-stage solution dehumidification technology is adopted to dehumidify a drying medium, so the problems that in the traditional cooling dehumidification process, a heat exchanger is prone to freezing, and energy consumption is large are solved; the hygroscopic solution is regenerated by adopting the vacuum technology, so the solution regeneration energy consumption is reduced, and the generated secondary steam is recycled by utilizing the compression technology, so the problem that the latent heat of water vapor is not utilized in the traditional cooling and dehumidifying processis solved; the mechanical heat pump technology is adopted for adjusting the solution dehumidification and regeneration temperature, so the energy utilization rate of the system is increased.

The invention discloses a preparation method of a solvent-based brittle self-peeling radioactive detergent. The preparation method comprises the following steps: adopting methacrylic acid as a soft monomer in a free radical polymerization product, methyl methacrylate as a hard monometer in the free radical polymerization product and acrylamide as a functional monomer in the free radical polymerization product; adding nanosilicon dioxide with different grain sizes and a functional additive in the preparation process of the detergent. The detergent obtained by the preparation method can be used in an environment of below 0 DEG C and cannot generate an icing phenomenon; meanwhile, when the decontamination is performed on the surfaces of a precision instrument and equipment, instrument and equipment short circuit and other faults possibly caused by the aqueous detergent are avoided; as the nanosilicon dioxide with different grain sizes is added in the preparation process of the detergent, a peeling effect between a coating brittle chip and the equipment is improved, so that the coating brittle chip is more easily subjected to brittle rupture and peeling from the surface of the equipment.

The invention discloses a preparation method of disinfect and sterile spray for preventing bouine mastitis. The preparation method comprises the following steps of: A, taking 70-90 parts by weight of radix sophorae flavescentis, adding 280-360 parts by weight of deionized water, decocting for 50-60 minutes, filtrating, and concentrating till the relative density is 1.03-1.05 at a temperature of 60 DEG C; B, adding 520-640 parts by weight of deionized water into a dissolving kettle, heating to 40-50 DEG C, then adding 7-8 parts by weight of chlorhexidine gluconate, 60-80 parts by weight of glycerin, 15-20 parts by weight of menthol, and 240-340 parts by weight of ethanol and evenly mixing; and C, mixing a concentrated solution in the step A and a mixed solution in the step B, and adding 1-2 parts by weight of food brilliant blue and evenly stirring; and canning, and sealing to obtain the disinfect and sterile spray after 260-360 parts by weight of dimethyl ether is charged. An application method of the disinfect and sterile spray comprises the following steps of: vertically and directionally spraying the disinfect and sterile spray on the places which are 1cm far away from nipples below the nipples after milking each time, and covering liquid medicine on the nipples.

The invention relates to a liquid chemical blending device, in particular to a three-compound combination flooding scale-prevention water and chemical adding device for a wellhead. The device comprises a chemical storage box, a blender and a water source delivery pipe used for being connected with a tap water source. The blender is provided with an inlet and an outlet. The lower end of the chemical storage box is connected with the inlet of the blender through a liquid chemical delivery pipe. The liquid chemical delivery pipe is connected with a first switching valve, a first flow regulating valve and a charge pump. The outlet end of the water source delivery pipe is connected with the inlet of the blender. The water source delivery pipe is connected with a second switching valve, a second flow regulating valve and a water pump. The outlet of the blender is connected with a pressure gauge, a discharge pipe and a safety valve in parallel. The outlet end of the safety valve is connected with the chemical storage box. The discharge pipe is connected with a discharge valve and a check valve. According to the device, the problem that in the prior art, the concentration of prepared liquid chemical is unstable is solved, and the adding ratio of the liquid chemical to water and the adding speed can be well controlled.

The invention belongs to the technical field of heat energy, and particularly relates to a super-cooled water preparation device for exchanging heat between gas and liquid. The super-cooled water preparation device comprises a container, a liquid distributor and a liquid trap which are positioned in the container, and an air inlet and an air outlet which are formed on the container, wherein a super-cooled liquid membrane forming part capable of heating is arranged in the container and is arranged between the liquid distributor and the liquid trap and between the air inlet and the air outlet; an included angle is formed between the super-cooled liquid membrane forming part and a liquid flow direction as well as between the super-cooled liquid membrane forming part and a gas flow direction; the surface of the super-cooled liquid membrane forming part is provided with a poor heat conducting layer; and when the super-cooled liquid membrane forming part heats, heat is slowly released to the surface of the poor heat conducting layer, and the liquid membrane temperature is controlled to be more than or equal to a liquid freezing point. Heat transferring mediums can be directly contacted, the heat exchange efficiency is high, the size is small, the manufacturing cost is low, and impurities can be removed from the gas heat transferring medium.

A nitrogen gas delivery device belongs to the transferring technical field for protecting the gas by the nitrogen gas, which is composed of a liquid nitrogen tank, an evaporator and a pipe. One end of the pipe is connected with the liquid nitrogen tank, the other end of which is connected with the evaporator. The middle part of the pipe has a bent pipe input into the heat exchange groove, which is provided with a hot water inlet pipe for heat exchange, and the heat exchange groove is provided with a cooling water circulation mechanism. The device has the advantages that, due to the heat exchange inducted into the evaporator through the heat exchange groove of the bent pipe of the middle part, the evaporating effect of the evaporator can be increased, compared with the existing art 15-20% liquid nitrogen can be saved; on freezing occurs on the whole pipe, so on man is needed to deice; the cooled water through the bent pipe heat exchange is returned to the sintering kiln for circulating cooling, which is favorable for the cooling effect of the sintering kiln.

The invention provides a crankcase ventilation pipeline heating joint. The crankcase ventilation pipeline heating joint comprises shells, a heat conduction metal pipe and a PTC heating mechanism. Joint pipelines are formed in the shells; the heat conduction metal pipe is formed on the inner wall of one of the joint pipelines; the PTC heating mechanism makes contact with the heat conduction metal pipe; and the heat conduction metal pipe is heated at the constant temperature through the PTC heating mechanism. According to the crankcase ventilation pipeline heating joint, by innovatively arranging the heating mechanism at the crankcase ventilation pipeline joint and introducing the PTC heating mechanism, the effect that the crankcase ventilation pipeline joint is prevented from being frozen at the low air temperature is guaranteed, therefore, the problem of engine failure caused by oil seal bulging when the crankcase ventilation pipeline joint is frozen and blocked is effectively prevented, the environment adaptability of an engine is improved, and the service life of the engine is prolonged.

The invention relates to the field of defrosting and draining, in particular to a drainer and a refrigerator. The drainer comprises a water pan, a drain pipe connected to the drain outlet of the waterpan and a gas-liquid circular heating assembly, wherein a cooling surface is arranged at the upper end of the gas-liquid circular heating assembly, the cooling surface is in contact with the bottom surface of the water pan, and an evaporating surface is arranged at the lower and is in contact with a heat-dissipating element; and a steam ascending pipeline and a liquid descending pipeline communicating to each other are arranged in the gas-liquid circular heating assembly. A heat exchange working medium is in contact with the heat-dissipating element in the gas-liquid circular heating assemblyto be heated, enters the upper end of the gas-liquid circular heating assembly through the steam ascending pipeline, and exchanges heat with a substance in the water pan through the cooling surface,so that the bottom of the water pan is not frozen, and evaporated water is discharged along a drain pipe. The drainer is applied to the refrigerator. By taking a cabin of a compressor as the heat-dissipating element, evaporated water inside is discharged smoothly by means of heat generated by the product skillfully, so that freezing is avoided, and the consumption reducing effect is also achieved.

The invention relates to an efficient casing pipe type air heater device. The device is provided with a steam header (7) on the upper portion of one end in an outer frame (9); one end of the steam header (7) is connected with a steam inflow pipe (5); the other end of the steam header (7) is connected with an inner pipe (1); the exterior of the inner pipe (1) is sleeved with an outer pipe (2); oneend of the outer pipe (2) is closed by an outer pipe plug (3); fins (4) are wound on the outer wall of the outer pipe (2) to form a fin pipe: the lower portion of one end in the outer frame (9) is provided with a hydrophobic header (8); one end of the hydrophobic header (8) is connected with a hydrophobic pipe (6); and the other end of the hydrophobic header (8) is connected with an outer pipe (2). A coaxial type structure is adopted for the device, and fluid enters from the inner pope, returns through a folding back chamber, and returns through a sandwich layer channel between the outer pipeand the inner pipe. The temperature distribution of the outer wall of a whole casing pipe tends to be uniform in the pipe length direction, and the phenomena of hot expanding leakage, bend brushing leakage and outlet hydrophobic icing and the like can be well avoided. The efficient casing pipe type air heater device has the beneficial effects of being compact in structure, easy to machine, low incost, long in service life and the like.

The invention discloses a forklift truck cab which comprises a driving cabin arranged at the upper end of a frame and a cab body fixedly connected to the upper end of the driving cabin. A step is fixedly connected to one end of the driving cabin, and the end, close to the step, of the frame is connected with a driving wheel protection cover. The step comprises a first step plate and a second step plate, the second step plate is fixedly connected with the driving cabin, the first step plate is located below the second step plate, and the projection of the second step plate in the plane of the first step plate locally coincides with the second step plate. By means of the forklift truck cab, due to the fact that the two-stage step structure is arranged, the span of each stage of step body in the height direction is reduced, and therefore the foot lifting height obtained each time a driver enters the forklift truck cab is reduced, the difficulty for entering the cab of the driver is lowered, and meanwhile safety of the driver is also ensured.

The invention provides a beverage cooling device and a cooling method. The cooling device is installed on refrigeration equipment, the cooling device comprises an inner part and an outer part, the inner part is located in the refrigeration equipment, the outer part is located outside the refrigeration equipment, and the inner part is connected to the outer part through a pipeline pre-buried in thedoor body of the refrigeration equipment; and the outer part is used for containing the beverage with an outside package, a liquid refrigerating fluid is arranged in the inner part, the pre-buried pipeline is used for communicating the inner part and the outer part, so that the refrigerating fluid is also contained in the outer part, and the beverage is cooled. According to the device and the method, the cooling structure is simple, the beverage can be cooled conveniently and quickly by adopting the cooling method based on the device, so that the beverage can be rapidly cooled.

The invention relates to an anti-frost heaving system for a vertical shaft in a cold region and a construction method of the anti-frost heaving system. The anti-frost heaving system comprises the vertical shaft arranged in surrounding rock and a separating wall. The separating wall is arranged in a surrounding mode along the outer part of the outer wall of the vertical shaft in the annular direction. A plurality of liquid injection holes which are dispersed at intervals are formed between the separating wall and the vertical shaft, and cement paste layers are arranged at the bottoms of the liquid injection holes; solvents are injected into the liquid injection holes and are used for reducing the freezing point of water; the solvents diffuse outwards in the liquid injection holes to fill the area between the separating wall and the outer wall of the vertical shaft, a continuous solvent curtain is formed, and the two sides of the solvent curtain make contact with the separating wall and the outer wall of the vertical shaft correspondingly; and the separating wall is used for preventing water diluting solvents in an external environment or further diffusion of the solvents. The anti-frost heaving system is simple in structure, convenient to use, low in energy consumption and good in anti-frost heaving effect, can be used throughout the year after being built once, and has good economical efficiency and use value.

The invention discloses a hydrogen circulating pump for a fuel cell, and belongs to the technical field of fuel cells. The hydrogen circulating pump comprises a machine shell, a motor, a male rotor and a female rotor, wherein the motor, the male rotor and the female rotor are arranged in the machine shell; the male rotor is connected to the output end of the motor; a gear transmission structure is arranged between the male rotor and the female rotor; the female rotor and the male rotor each comprise a rotor base body, an anti-expansion coating and a hydrophobic coating; each anti-expansion coating is arranged on the outer surface of the corresponding rotor base body, and the expansion coefficients of the anti-expansion coatings are smaller than those of the rotor base bodies; and each hydrophobic coating is arranged outside the corresponding anti-expansion coating. The anti-expansion coating and the hydrophobic coating are sequentially arranged on each of the surface of the female rotor and the surface of the male rotor from inside to outside, so that the pump is effectively prevented from being stuck.

The invention discloses a water leakage detection system for a water pump connection port, which belongs to the field of water pumps. A water leakage detection system for a water pump connection port, a connection port installed on a water pump, a pair of detection and protection elements and a driving element; the detection and protection elements include a bracket, a moving block, a protection groove, a pair of sensors and a clamping mechanism; The bracket is fixedly installed on the water pump near the connection port, the moving block is slidably installed on the water pump, the moving block is located between the connection port and the bracket, the protection groove is opened in the moving block, and a pair of sensors are respectively installed on the upper and lower walls of the protection groove. By sealing and protecting the position of the connection port, and then fixing the external water pipe, when there is water leakage, the liquid level sensor is used to sense it. At the same time, the sealing protection space is limited, and the water leakage will not affect the pressure problem. Use the time when the upper and lower liquid level sensors are triggered after water leakage to judge the degree of water leakage.