35results about How to "Wide heating range" patented technology

A method of manufacturing a fused silica crucible by heating and melting a vitreous silica powder compact shaped into a mold using arc discharge of electrodes arranged around a rotation shaft of the mold, includes the steps of: arranging the electrodes in a ring shape, and setting a ratio W / R of a horizontal distance W between the electrode front end and the surface of the vitreous silica powder compact to a vitreous silica powder compact opening radius R, for at least a predetermined time during arc heating, to be in the range of 0.002 to 0.98.

The invention provides a multistage compression and stepwise heat utilization steam compression heat pump, which belongs to the technical field of waste heat utilization and heat pump refrigeration. Aiming at the shortcomings of the single condensation to heat release unit in stage compression and inter-stage cooling, the heat pump provides the steam compression unit which comprises two or more compressors, two or more condensers, an evaporator and a throttle valve, and the steam compression unit can implement condensation and heat release to outside respectively by each compression and heat moving flow. A low temperature compression and heat release flow is composed of a low-pressure compressor and condenser, a throttle valve and a evaporator; a high-temperature compression and heat moving flow is composed of a high-pressure compressor and condenser, a throttle valve and other parts by virtue of the structure of the low-temperature compression and heat moving flow; the residual heat medium can release heat by flowing through the evaporator; the heat medium absorbs heat by flowing through the each compression and heat moving flow. The multistage compression and stepwise heat utilization steam compression heat pump has the advantages that: the heat transfer temperature difference is reduced; the unit performance index is improved; while being used as a heat pump, the heat pump is particularly suitable for the occasion with high heat supply temperature and wide range, and can be used for refrigeration and power consumption reduction.

The invention relates to a half-variable-radius circular arc framework-type preheating device. The half-variable-radius circular arc framework-type preheating device comprises preheating device tracks and roller frame tracks which are respectively arranged in parallel; the preheating device tracks are provided with an equilibrium bogie; the lower part of the equilibrium bogie is in contact with the preheating device tracks through installing equilibrium bogie walking wheels; the equilibrium bogie is provided with a preheating device installation frame; the upper part of the preheating device installation frame is provided with a preheating device; the preheating device consists of a heating device and a variable diameter device; the variable diameter device consists of at least two columns of variable diameter plates; each column of variable diameter plates are composed of a plurality of arc plates; adjacent arc plates are connected movably through pin shafts; two adjacent variable diameter plates are connected through connecting rods, and the connecting rods between two columns of variable diameter plates are uniformly provided with heating devices; the roller frame tracks are provided with walking roller frames; the walking roller frames consist of rotary mechanisms and conveying mechanisms; the rotary mechanisms are arranged in conveying supports of the conveying mechanisms. The half-variable-radius circular arc framework-type preheating device provided by the invention can be suitable for the weld preheating working procedure of cylinder bodies with different pipe diameters and different wall thicknesses, and also has the advantages of being wide in heating range, low in use cost, accurate in temperature control, capable of automatically correcting preheating temperature, convenient and safe to operate, and the like.

The invention provides a compound-typed first class absorption heat pump and belongs to the technical field of waste heat utilization and heat pump / refrigeration. The invention aims at the shortcomingof the single class heat pump and provides a compound integrated type machine set mainly consisting of a first class generator, a second class generator, a first class condenser, a second class condenser, a first class absorber, a second class absorber, an evaporator, a throttle, a solution pump and other basic components. A first class heat pump procedure with high performance index and a low temperature heat supply section consists of the first class generator, the first class condenser, the throttle, the evaporator, the solution pump and the first class absorber; the second class generator, the second class condenser, the throttle, the solution pump and the absorber form a second class heat pump procedure with a high temperature heat supply section and low performance index with the help of the first class procedure; wherein, the second class condenser is communicated with the first class condenser through the throttle and the first class generator is communicated with the second class absorber through a refrigerant evaporation channel; the heat pump can fully take use of the waste heat and has higher energy-saving benefit when in the high temperature heat supply in a wide temperature range; the waste heat refrigeration can make use of driven heat deeply.

The invention relates to an all-position automated pipe preheating system, which belongs to the technical field of automated welding equipment. The all-position automated pipe preheating system mainly comprises a moving trolley, an adjusting slider, a lifting adjustor, an angle adjustment mechanism, a gun part and a gas circuit system. The adjusting slider is mounted on the moving trolley, the lifting adjustor is mounted on the adjusting slider, the angle adjustment mechanism is connected with the gun part, the whole body composed of the angle adjustment mechanism and the gun part is mounted on the lifting adjustor, and the gas circuit system meets the requirement of pipe preheating on gas supply by means of a control system. The all-position automated pipe preheating system is applicable to weld preheating processes for pipes with different large calibers and different wall thicknesses, has the advantages of concentrated fire power, wide heating range, accurate temperature control, stable gas supply control, automatic preheating temperature correction and the like, and is convenient and safe to operate.

The invention relates to a laser scanning-vibration hot wire TIG hybrid welding method. The method is mainly formed by compounding laser scanning welding and vibration hot wire TIG welding. During welding, a welding heat source is formed by combining a scanning laser and a TIG electric arc, a welding wire is heated and vibrated in a reciprocating mode at the same time so as to generate a vibrationhot wire, and laser scanning-vibration hot wire TIG hybrid welding is jointly formed by the vibration hot wire and a hybrid heat source. According to the method, on one hand, the laser scanning welding can reduce an assembling precision requirement of a workpiece before welding; and on the other hand, a stirring effect on a molten pool can reduce a porosity and refine a structure; and heat inputduring welding can be reduced by preheating the welding wire, and a deposition rate and welding efficiency are improved. Under a condition that the hot wire is vibrated, on one hand, a molten pool canbe stirred to refine the structure; and on the other hand, a molten drop transition frequency can be increased, and the welding efficiency is improved.

Disclosed in the invention is an electric meter box comprising a main square body including a box body and an upper cover, an electric meter seat, and indefinite square vertical plates. The electric meter seat arranged in the box body has a quasi-square-frame type structure with electric meters around an electric meter; the electric meter seat fixed at the bottom surface of the electric meter box vertically includes a main body having an integrated structure formed by two square horizontal plates and one square vertical plate. The indefinite square vertical plates are clamped into one pair of opposite clamp grooves detachably. Damping gaskets are arranged at the surfaces, approaching the electric meters, of the vertical plates and the indefinite square vertical plates and include sponges and spring layers bound to the sponges successively towards the direction approaching the electric meters. According to the invention, electric meters in the electric meter box can be fixed; and the vibration or inclination of the electric meters can be reduced and thus metering errors of the electric meters can be reduced.

The invention provides a double-heat-energy warming fermentation tank. The double-heat-energy warming fermentation tank comprises a fermentation tank, a solar warming device and an auxiliary heat energy warming device, wherein the solar warming device is arranged around the south side wall of the tank body; the auxiliary heat energy warming device is arranged around the north side wall of the tank body; platforms are arranged at the tops of both the auxiliary heat energy warming device and the solar warming device; the solar warming device, the auxiliary heat energy warming device, the platforms, the ground and the black tank body side walls mutually form a sealed structure; the auxiliary heat energy warming device is a biological energy warming room or a full-sealed boiler directly-heated type warming room; straw fermentation warming is adopted for the biological energy warming room; and the full-sealed safety and energy-saving biogas boiler near-fermentation warming is adopted for the full-sealed boiler directly-heated type warming room. The double-heat-energy warming fermentation tank provided by the invention has the advantages of good warming effect, stronger energy conservation, low cost, strong environment friendliness and suitability for large-sized biogas projects.

The invention provides an enteral nutrition thermostat. The enteral nutrition thermostat comprises a heating channel, a water pump, a heater, a temperature detection device and a controller, wherein the heating channel wraps a nutrient solution dropper in a contact manner, and a medium flows in the heating channel; the water pump is arranged between the outlet and the inlet of the heating channel, and the water pump is used for pumping the medium flowing out of the outlet into the inlet direction; the heater is arranged between the water pump and the inlet of the heating channel and is used for heating the medium in the heating channel; the temperature detection device is used for detecting the temperature of the nutrient solution at the outlet of the nutrient solution dropper; and the controller is used for acquiring the temperature of the nutrient solution at the outlet of the nutrient solution dropper detected by the temperature detection device and controlling the heater according to the temperature of the nutrient solution at the outlet of the nutrient solution dropper. The temperature of the nutrient solution in the nutrient solution dropper can be maintained within a certain range, the heating range is wide, the universality is high, and the situation that the temperature in the local range is relatively high and scalds people or the heater is not matched with the dropper is avoided.

The invention discloses a chemical reaction kettle with adjustable stirring temperature. The reaction kettle comprises a kettle body, a stirring shaft is arranged in the center of the inside of the kettle body, a plurality of spiral stirring blades are arranged on the stirring shaft, electric heaters are arranged in the spiral stirring blades, the electric heaters are connected to a positive electrode and a negative electrode at the bottom of the stirring shaft through wires, the positive electrode and a power transmission positive electrode are elastically connected through a separable mode, the negative electrode and a power transmission negative electrode are in sliding connection, and the power transmission positive electrode and the power transmission negative electrode are connected to a controller through wires; a temperature sensor is arranged in the kettle body and is connected to the controller through a wire. According to the chemical reaction kettle with adjustable stirring temperature, a special power transmission structure is adopted, temperature adjustment of chemical raw materials in the reaction kettle is achieved, the heated range is wide, temperature adjusting speed is high, the effect is obvious, and the reaction kettle has the advantages of being easy to manufacture, low in cost and high in heating efficiency.

The invention provides a solid solution treatment device of a stainless steel plate. The solid solution treatment device comprises a feeding mechanism, a hot rolling heating furnace, a discharging mechanism and a cooling water pool, the feeding mechanism can install the stainless steel plate into the hot rolling heating furnace, the hot rolling heating furnace can heat the stainless steel plate tothe solid solution temperature, and the discharging mechanism can take the stainless steel plate from the hot rolling heating furnace and transports the stainless steel plate to the cooling water pool for cooling to realize solid solution treatment of the stainless steel plate. According to the treatment device, the stainless steel plate is heated by a slab heating furnace in a hot rolling plant,through solid solution treatment technology that the heated stainless steel plate is cooled rapidly by the cooling pool, the stainless steel plate can be subjected to the solid solution treatment ina heating furnace area of a hot rolling workshop, the solid solution treatment device is especially suitable for the solution treatment of a thick plate of austenite stainless steel, the production process is simplified, and the production efficiency is improved.

The electromagnetic heater with the protection mechanism for the oil well comprises a shell, limiting openings are formed in the two ends of the shell, a bottom plate is fixedly connected to the bottom of the shell, a mounting frame is fixedly connected to the top of the shell, and an air cylinder is fixedly mounted on the inner wall of the top of the mounting frame; the bottom end of an output shaft of the air cylinder penetrates through the top of the shell and is fixedly connected with a lifting plate, the lifting plate is located in the shell, the bottom of the lifting plate is fixedly connected with a transmission rod, the bottom end of the transmission rod is fixedly connected with a heating cover, an electromagnetic heating mechanism is arranged in the heating cover, and a protection mechanism is arranged at the top of the shell. The device has the characteristics of reasonable structural design, good protection effect, wide heating range, high efficiency, good stability and the like.

The invention discloses a method for combined co-mining of deep coal bed gas and coal by using multi-mode microwave radiation. Firstly, a microwave control system is arranged on the ground of a coal-bed gas well, and then a radiating antenna is arranged at a target perforation layer; starting a microwave source, radiating the coal seam in a high-power and short-time mode to enable the coal seam to generate and extend cracks, and improving the permeability of the coal seam; then the microwave radiation mode is adjusted to be low-power and long-time, the temperature of the coal bed is increased to the coal bed gas desorption temperature through the microwave heating technology, a production well is opened, and coal bed gas is exploited; and finally, radiating the coal seam for a long time by adopting medium power to enable the temperature of the coal seam to rise to the coal pyrolysis temperature, and exploiting tar and pyrolysis gas generated by underground coal pyrolysis. According to the method, the mode of microwave radiation is adjusted, the three effects of rock breaking and permeation increasing, coal bed gas mining and coal pyrolysis are achieved in the same well, the purpose of co-mining of deep coal bed gas and coal is achieved, and a feasible thought is provided for green and efficient conversion of deep coal.

The invention discloses an infrared ray generating net. A burning device comprising at least one burner, a supporting assembly, an infrared ray reflecting plate and the infrared ray generating net; the at least one burner is provided with a fire outlet; the infrared ray generating net is arranged on the supporting assembly and is heated by flame generated from the fire outlets to generate infraredrays; the supporting assembly includes a rear shield, the infrared ray reflecting plate is disposed between the rear shield and the infrared ray reflecting plate, and the infrared ray reflecting plate reflects the infrared rays incident on the infrared ray generating net; and an infrared ray heat source is generated to effectively increase the heating intensity and achieve the purpose of uniformheating.

The invention discloses an intelligent afterheat recycling device for urban waste incineration. The intelligent afterheat recycling device comprises recycling integration, a transmission system, a heat feeding device and a heat collecting system, wherein the recycling integration is used as a main support body, and the transmission system, the heat feeding device and the heat collecting system are fixedly mounted on the recycling integration. An inlet of the recycling integration is connected to a smoke flue joint of a waste incineration plant; and incinerating afterheat is introduced into a spiral box from the inlet and is filtered through the spiral box, so that clean smoke flue is introduced into the heat feeding device. The transmission mechanism which consists of an input gear, a middle gear, a transitional gear and an output gear is driven through a motor of the transmission system, so that an air blower in the heat feeding device is driven again to perform air suction; blown air on the heat feeding device pass through a ventilation pipeline and is fed into the heat collecting system; and the smoke flue is fed into a heat storage pipeline through the pipeline in the heat collecting system, and is exhausted from the used channel when the smoke flue needs to be heated.

The present invention relates to the preparation of film, especially film on the substrate of belt metal material. The present invention makes current flow through the metal substrate directly for heating, the film prepared in the said method has excellent performance and high homogeneity. The present invention has the advantages of easy use, easy processing, low cost, high temperature homogeneity, wide heating width, simple operation and good repeatability.

The invention discloses a synchronous heat treatment device for on-line producing crankshafts. The synchronous heat treatment device for on-line producing the crankshafts comprises a positioning and clamping mechanism, a synchronous transmission mechanism, a parallelogram mechanism and an induction heating mechanism. The positioning and clamping mechanism is used for positioning and clamping the produced crankshafts; the synchronous transmission mechanism is used for driving the parallelogram mechanism and the crankshafts to rotate; the parallelogram mechanism is used for driving the inductionheating mechanism to move transversely in a horizontal plane; and the induction heating mechanism is used for heating and carrying out heat-insulation heat treatment on the crankshafts. When the device carries out heat treatment, the crankshafts are vertically placed, a heat treatment part is heat uniformly so as to be less in deformation, the heat treatment efficiency is high, and the device canbe suitable for on-line heat-treating multi-species crankshafts.

The invention relates to a method for testing chemical components of an in-situ TiB2 ceramic particle reinforced aluminum alloy. The method comprises the following steps: (A) dissolved sample preparation: (A1) dissolving an in-situ TiB2 ceramic particle reinforced aluminum alloy material by using a nitrate acid mixed solution with the ratio of HNO3 to HCl being 2: 3-2: 7; (A2) heating the solution obtained in the step (A1) to fully dissolve the material; and (A3) fixing the volume of the solution obtained in the step (A2) to obtain a to-be-detected dissolved sample, and (B) sample dissolution test.

A method of manufacturing a fused silica crucible by heating and melting a vitreous silica powder compact shaped into a mold using arc discharge of electrodes arranged around a rotation shaft of the mold, includes the steps of: arranging the electrodes in a ring shape, and setting a ratio W / R of a horizontal distance W between the electrode front end and the surface of the vitreous silica powder compact to a vitreous silica powder compact opening radius R, for at least a predetermined time during arc heating, to be in the range of 0.002 to 0.98.

The invention discloses a rotary heating device which comprises a base, a shell, a fan, a heating pipe and a power connection assembly. Two side-by-side wire clamping grooves are formed between the upper side and the lower side of the interior of the shell and one side in the horizontal direction in a penetrating mode, heating pipes are movably clamped between the upper ends and the lower ends of the wire clamping grooves in a linear array mode, the front row of heating pipes and the rear row of heating pipes are arranged in a staggered mode, a pull cover is vertically and movably installed at the upper end of the shell, and a spring is fixed between the pull cover and the shell. The device has the beneficial effects that firstly, the heating pipe is electrified and heated to heat air blown out by the fan, the heat supply function is achieved, the shell is rotated through the rotating power unit, and the shell can continuously rotate by 360 degrees and does not need to swing back and forth, so that the heating range is wider, the surrounding environment is heated more uniformly, and heat concentration is avoided; and the device is easier to disassemble and assemble, and more convenient to assemble or overhaul.