16results about How to "Smooth temperature change" patented technology

The invention relates to the technical field of alloy processing, in particular to a long-service-life elastic titanium-copper alloy for a VCM elastic piece and a preparation method thereof.The preparation method comprises the following steps that firstly, raw materials including 55%-65% of titanium, 30%-25% of copper, 10%-8% of aluminum, 3%-1% of zinc and 2%-1% of magnesium are weighed according to the mass percent; 2, the raw materials are put into a vacuum furnace to be melted, and a liquid melt is obtained; thirdly, the melt is poured into a casting mold for casting, and a blank is obtained; according to the method, the change of the state of the blank can be responded in real time by calculating the influence of the rolling times and the thickness change of the blank on the rolling control parameters, so that the rolling process can be flexibly adjusted according to the actual situation, the adaptability during machining is improved, and the rolling speed is improved when the rolling times are gradually reduced along with the reduction of the rolling times of the blank. The rolling temperature, ratio, speed and pressure are reduced, excessive deformation and damage of blanks can be effectively prevented, and the quality of final products, namely the elastic life of the alloy, is improved.

The invention provides a tire vulcanization system with a cooling pipeline and a temperature control method. The tire vulcanization system comprises a vulcanization station with a capsule, a medium circulation device; the capsule air inlet pipeline and the capsule air outlet pipeline are respectively communicated with the capsule, and the medium circulating device is respectively communicated with the capsule air inlet pipeline and the capsule air outlet pipeline; the device further comprises an inflation pipeline and an exhaust pipeline. Wherein a heating pipeline for heating a vulcanizing medium and a cooling pipeline for conducting the vulcanizing medium are arranged on the capsule air inlet pipeline in parallel, a heating element is arranged on the heating pipeline, and a valve element is arranged on the cooling pipeline. According to the invention, the cooling pipeline with the valve element is matched with the heating pipeline with the heating element, and the cooling pipeline is opened through the control system according to different requirements, so that the temperature of the vulcanizing medium entering the capsule is adjusted, the temperature change in the capsule is smaller and more stable, the tire vulcanization is more uniform, and the tire quality is improved.

The invention discloses a sealing method for an optical fiber element, and relates to the technical field of optical element connection, in the sealing method, a pretreated assembly component is directly sealed under micro-positive pressure inert gas, and the sealing reliability can be improved from multiple aspects of oxidation prevention, atmosphere control, quality improvement, process stabilization and the like; the temperature of the graphite jig changes more gently in the heating and cooling stages, heat permeates uniformly in the heating process, and local thermal shock is avoided; and during cooling, heat is quickly and uniformly dissipated, so that the cooling rate difference of all parts of the sealing piece is reduced, and thermal stress accumulation is greatly reduced. In the sealing heating stage, the graphite jig can quickly and uniformly conduct heat of a heat source, the problem that a local area is overheated or heated insufficiently can be avoided, it is guaranteed that glass solder is synchronously melted and wetted on the whole sealing interface, the defects that the solder is uneven in spreading, local fusion is incomplete and the like due to the temperature gradient are overcome, and the service life of the glass solder is prolonged. And the air tightness and the structural integrity of a sealing interface are ensured.

The invention provides an end sealing and cooling structure for a plunger. The end sealing and cooling structure for the plunger comprises a sealing sleeve and the plunger arranged on the core portion of the sealing sleeve in a penetrating mode. A threaded sleeve, a water jacket, a three-stage sealing structure and a guide sleeve are sequentially arranged between the plunger and the sealing sleeve; annular cooling flow channels are formed between the water jacket and the plunger and between the water jacket and the sealing sleeve respectively. The annular cooling flow channels are communicated with a cooling medium inlet and a cooling medium outlet in the sealing sleeve. A pressure detection device is arranged on the quick-change connector at the cooling medium outlet; the three-stage sealing structure comprises three UN sealing rings and three supporting rings, and the UN sealing rings and the supporting rings are arranged at intervals; an annular groove is formed in the UN sealing ring, an annular protrusion is arranged on the supporting ring, and the annular protrusion is connected with the annular groove in an inserted mode. The problems that an existing sealing structure is prone to failure in the high-temperature and high-pressure environment, and sealing failure cannot be found in time are solved.

The invention discloses a drying and cooling device for varnished wire processing, and relates to the technical field of varnished wire processing equipment.The drying and cooling device comprises a winding machine, a drying machine and a cooling box, and preheating pipes penetrate through the interior of the drying machine and the interior of the cooling box; and the preheating mechanism comprises a preheating pipe arranged at the feed port of the dryer. By arranging the preheating mechanism, the surface of the varnished wire entering the dryer can be preheated, the varnished wire is usually provided with a coating or a paint layer, the coating is very sensitive to temperature change, if the coating is directly exposed at high temperature, the coating is prone to cracking or peeling due to thermal shock, and the coating cannot be damaged. The expansion air bag is attached to the outer wall of the enameled wire in an expansion mode, so that the thermal shock effect caused by direct contact with high temperature can be avoided to a certain extent, temperature change is smoother, the risk of coating damage is reduced, and therefore the situation that the enameled wire directly enters a high-temperature drying machine to be dried, and consequently surface coating cracks or blisters or falls off is avoided; therefore, the molding effect of the dried enameled wire is improved.

The invention relates to the field of electronic expansion valve adjustment of aircraft ground air conditioners, in particular to an electronic expansion valve opening adjusting method and device and electronic equipment, and the method comprises the steps that a target value of the superheat degree of a compressor and an adjusting mode of the electronic expansion valve opening are preset; the actual value of the superheat degree of the compressor is obtained; according to the target value of the superheat degree of the compressor and the actual value of the superheat degree of the compressor, the adjusting mode of the opening degree of the electronic expansion valve is selected; and the opening degree of the electronic expansion valve is adjusted according to the adjusting mode of the opening degree of the electronic expansion valve. According to the embodiment of the invention, the electronic expansion valve of the aircraft ground air conditioner is adjusted, stepping adjustment and PID adjustment are combined, a more suitable adjustment mode is selected under different working requirements, the adjustment cost is reduced, more accurate adjustment can be realized, and the adjustment efficiency is improved. The problem that the air outlet temperature is unstable due to unstable opening adjustment of the electronic expansion valve is solved, and the working efficiency of the aircraft ground air conditioner is improved.

The invention discloses an LED outdoor lighting intelligent control device, and relates to the technical field of LED outdoor lighting, the LED outdoor lighting intelligent control device comprises a shell, the shell is rotatably connected with a frame body, the top of the shell is fixedly connected with a fixing ring, the outer side of the fixing ring is provided with a plurality of filter holes, the filter holes are uniformly distributed in the outer side of the fixing ring, and the filter holes are communicated with the fixing ring. A heat conducting plate is fixedly connected into the shell, the side edge of the heat conducting plate makes contact with the outer side of the motor, the bottom of the heat conducting plate makes contact with the outer side of the baffle, square grooves are formed in the top and the outer side of the heat conducting plate, limiting rings are fixedly connected into the square grooves, and partition plates are fixedly connected into the square grooves. According to the LED outdoor lighting intelligent control device, the fan is driven by the motor to rotate, a complete air convection channel is formed, flowing air can take away part of temperature on the lighting lamp, and therefore active heat dissipation is effectively conducted on the lighting lamp, the LED lamp is not prone to being heated and damaged, and the service life of the LED lamp is prolonged.

The application is suitable for supercritical technical field, and provides a primary frequency modulation control method, which comprises the following steps: designing a low-pass high filter and a high-pass low filter, decomposing a frequency signal, and obtaining low-frequency components and high-frequency components of the frequency signal respectively; sending the low-frequency components into a condensate water flow bypass valve controller, adjusting the bypass valve opening degree according to the low-frequency components; sending the low-frequency components into a low-level feedwater heater water level adjustment logic as a feedforward signal, and pre-judging and adjusting the low-level feedwater heater water level; sending the high-frequency components into a feedwater flow bypass valve controller, and adjusting the feedwater bypass valve opening degree according to the high-frequency components; and sending the high-frequency components into a high-level feedwater heater water level adjustment logic as a feedforward signal, and pre-judging and adjusting the high-level feedwater heater water level. By adjusting the water quantity on the high-level feedwater heater side, the steam side extraction quantity is changed, the temperature change is stable, and the stable operation of the unit is beneficial; the primary frequency modulation of the power grid is provided with an effective auxiliary means, and the frequency modulation precision and the frequency modulation response speed are improved.

The utility model relates to the technical field of polypeptide extraction, and discloses a polypeptide extraction device which comprises an extractor body, a feeding port formed in the top surface of the extractor body, a limiting ring attached to the outer side is arranged on the top surface of the extractor body, and an inlet closing assembly covering the feeding port is arranged in the limiting ring. And a detachable raw material freezing and thawing assembly is arranged on the limiting ring. The inlet closing assembly is arranged at the feed port of the extractor body, so that the feed port is accurately sealed, and pollution caused when the raw material freezing and thawing assembly is mounted and dismounted is avoided; the raw material freezing and thawing assembly is arranged at the feeding port, polypeptide raw materials can be subjected to freezing and thawing treatment and directly fed into the extractor body to be extracted, the pollution phenomenon is avoided, and daily maintenance is facilitated through the raw material freezing and thawing assembly which can be quickly disassembled.

The present application relates to the technical fields of laser welding, and discloses a laser welding device for track production, which comprises a rotating disc, and further comprises: welding assemblies, a plurality of which are evenly arranged in a ring shape on the top of the rotating disc and used for welding track components; heating blocks, a plurality of which are distributed along the welding assemblies and used for preheating the track components to be welded; and a circular ring arranged below the rotating disc and having a first limiting groove and a second limiting groove respectively formed on its inner and outer surfaces. The present application can preheat the track plates and the tooth blocks before welding, reduce the temperature difference, make the temperature change of the welding area more gentle, thereby reducing the occurrence of thermal stress and cracks, avoiding the rapid increase of the temperature of the welding area, the formation of large thermal stress leading to the generation of cracks, reducing the stress caused by the excessive temperature difference, improving the welding quality, and further improving the use effect of the device.

The utility model relates to the field of conveying equipment, in particular to an automatic bottle conveying machine which comprises a conveying belt, a secondary cooling mechanism is arranged on the conveying belt, a primary cooling mechanism is arranged at the feeding end of the conveying belt and comprises a temporary storage table, and first cooling air pipes are arranged on the periphery of the top of the temporary storage table. A plurality of first air holes are evenly formed in the inner side of the first cooling air pipe, a plurality of containing discs are evenly arranged on the temporary storage table, bottle bottom cooling air holes are formed in the containing discs, a cooling air channel is arranged in the temporary storage table, the cooling air channel is communicated with the bottle bottom cooling air holes, and the first cooling air pipe is communicated with the cooling air channel and connected with a cooling air source. According to the utility model, glass bottles are conveyed between the bottle-making machine and the annealing furnace, so that the labor intensity of workers is reduced, and the labor cost is saved.

This invention discloses a weather-resistant enhanced 1kV overhead insulated conductor, relating to the field of power cable technology. Several outer and inner air tubes are connected between two main air boxes located on the same axis. A rubber bladder is embedded between the outer and inner air tubes, and the rubber bladder is filled with microcapsule particles. Two pressure-resistant arc plates are embedded inside the pressure-resistant cavity. A torsion tube is connected between two adjacent pressure-resistant arc plates via two elastic arc plates. Torsion springs are connected between several adjacent torsion tubes. In this invention's pressure-resistant and cold-resistant components, the cable's flexibility is ensured when laying cables in low-temperature weather. In areas with large temperature differences, the cable's temperature change is more stable, preventing prolonged overheating or underheating. In the de-icing and heat dissipation components, the cable temperature is prevented from becoming too high in high-temperature weather and from icing in snowy weather. The two components work together to enhance the cable's weather resistance and improve its performance.

The invention relates to an energy-saving gable wall for collecting and storing rainwater. The energy-saving gable wall comprises a roof rainwater collecting module arranged in the gable wall, a plurality of water storage modules and a rainwater vertical pipe overflow pipe. The roof rainwater collection module is connected to the water inlet end of each water storage module through a rainwater diversion pipe, and the water outlet end of each water storage module is connected to the water outlet through a rainwater collecting pipe; the roof rainwater collecting module comprises a sewage intercepting device, a flow discarding device, a pipeline filter and a sterilizing device which are sequentially arranged from the roof rainwater receiving opening to the rainwater flow dividing pipe. According to the rainwater recycling system, the urban heat island effect and the western sunning phenomenon can be relieved, and rainwater recycling is achieved.

The utility model discloses a liquid combustion improver adding pipe group of a petroleum coke reaction circulating air inlet system in a calcining furnace, and mainly relates to carbon production. Comprising a jet device assembly and a connecting pipeline connected with the jet device assembly. The jet device assembly comprises a jet device pipeline and a combustion improver adding port communicated with the outer wall of the jet device pipeline; the connecting pipeline is located in the furnace body, and the tail end of the connecting pipeline is connected with a flow guide cover. The liquid combustion improver adding device has the advantages that the liquid combustion improver adding device is used for adding liquid combustion improvers into the calcining furnace body and can add the liquid combustion improvers into the furnace body in an atomized mode, so that the combustion improvers and the combustion improvers in the furnace body are combined more sufficiently, and energy waste of the combustion improvers and fuel is avoided; and the liquid combustion improver is added in this way, so that the temperature change in the furnace body is stable, and the addition amount of the liquid combustion improver is convenient to control.

The invention relates to a building material of a phase-change difunctional microcapsule prepared based on needle-based microfluidics and application of the building material, raw materials of the material comprise a difunctional microcapsule and gypsum, and the addition amount of the difunctional microcapsule in the gypsum is 1-5wt%. The difunctional microcapsule prepared by the specific process has temperature regulation capability, namely heat regulation function and energy, and in radiation heating and natural cooling experiments, a building embedded with the microcapsule shows higher thermal inertia than a building without the microcapsule, so that the building has higher thermal inertia. Therefore, the indoor and outdoor temperature change of the building with the microcapsule is more gentle, especially in the melting stage or solidification stage of the microcapsule; especially in the phase change process of the microcapsule, obvious latent heat transfer occurs, so that the temperature change of a building in which the microcapsule is placed is more stable in the heating and cooling processes.

The present invention relates to the field of refrigeration and freezing devices, and in particular to an ultrasonic-assisted processing chamber and a refrigerator for low-temperature spaces. The ultrasonic-assisted processing chamber comprises: a container base assembly, the upper end of which is open to form a top opening for taking out and placing stored food; a container cover assembly, which is arranged above the container base assembly, used to close the top opening and define a receiving cavity with the container base assembly, the receiving cavity is used to receive stored food, wherein a first interlayer cavity is provided inside the container cover assembly, and the first interlayer cavity is filled with an interlayer medium; and at least one first ultrasonic generator, which is arranged on the side of the container cover assembly facing the receiving cavity and is used to apply ultrasonic waves to the stored food in the receiving cavity. The ultrasonic-assisted processing chamber of the present invention avoids the phenomenon of uneven heating of meat food during freezing by arranging a first interlayer cavity inside the container cover assembly and containing an interlayer medium, thereby improving the quality of stored food.