22results about How to "Large specific heat capacity" patented technology

The invention provides an underground pipeline leakage detection method and system based on physical enhancement thermal inertia imaging, and belongs to the technical field of pipeline detection, and the method comprises the steps: obtaining an earth surface thermal field and environment meteorological parameters of a current target area; the surface thermal field and the environmental meteorological parameters are input into a double-flow physical information neural network model, a predicted background thermal field is obtained, the double-flow physical information neural network model is obtained through training based on leakage-free historical data and a total loss function, and the total loss function comprises physical loss items determined based on a one-dimensional heat conduction partial differential equation; calculating a space-time residual image of the earth surface thermal field and the predicted background thermal field, and obtaining an apparent thermal inertia distribution map of the earth surface based on the space-time residual image and environmental meteorological parameter inversion; and detecting whether the underground pipeline in the target area leaks based on the space-time residual map, the apparent thermal inertia distribution map and a preset condition. According to the invention, the accuracy of underground pipeline leakage detection can be improved.

The invention discloses a fabricated environment-friendly wallboard with vibration, noise and sound insulation as well as a production process and a construction method. The wallboard comprises a bamboo winding cuboid, a waterproof plastic surface layer, a vibration reduction spring and liquid water for vibration, noise and sound insulation; the bamboo winding cuboid is provided with a hollow cavity which is used for storing liquid water; the waterproof plastic surface layer is arranged on the hollow cavity and is used for preventing the bamboo winding cuboid from leaking water; the bamboo winding cuboid is provided with a water inlet and a water outlet; the water inlet and the water outlet are respectively formed in set positions of the bamboo winding cuboid and are respectively communicated with the hollow cavity; the water inlet and the water outlet can be used for adjusting the water level height of the liquid water in the hollow cavity; the bamboo winding cuboid can be arranged among the multiple structural columns, and the bottom of the bamboo winding cuboid can be connected with the bottom structure through the damping springs. The novel wallboard disclosed by the invention has the characteristics of assembly, vibration reduction, noise reduction, sound insulation and heat preservation, and is very environment-friendly.

The utility model relates to the technical field of thermal power generation, and discloses a thermal power generator base which comprises a base body, a water circulation assembly arranged on the left side of the base body, a heat dissipation assembly installed on the front face of the base body, a protection assembly installed on the back face of the base body, and a heat dissipation aluminum plate fixedly connected to the inner side of the base body. Cooling water channels are formed in the inner sides of the heat dissipation aluminum plates, the cooling water channels of every two adjacent heat dissipation aluminum plates are communicated through a connecting pipe, the front face of the bottom heat dissipation aluminum plate is fixedly connected with a water outlet pipe, and the back face of the top heat dissipation aluminum plate is fixedly connected with a water inlet pipe. High-temperature air near the heat dissipation aluminum plate is discharged through the mounting hole, and external low-temperature air enters the inner side of the base main body through the sealing frame, so that the temperature of the air near the heat dissipation aluminum plate is reduced, the temperature difference between the heat dissipation aluminum plate and the nearby air is increased, the heat conduction effect is improved, and heat dissipation of the base main body is accelerated.

The invention particularly relates to a solid heat storage material and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: mixing magnesite tailing fine powder, alumina tailing fine powder, quartz sand fine powder, used magnesia carbon brick fine powder and barium sulfate fine powder to obtain premixed powder; mixing the magnesite tailing particles with the particle size of 5-3mm, the alumina tailing particles with the particle size of 3-1mm, the quartz sand particles with the particle size of 3-1mm and the magnesite tailing particles with the particle size of less than or equal to 1mm to obtain a granular material; mixing the granules with the premixed powder to obtain a mixture; and adding a polyvinyl alcohol solution, uniformly mixing, carrying out compression molding, drying, and carrying out heat treatment at 1300-1500 DEG C for 5-8 hours to obtain the solid heat storage material. The prepared solid heat storage material is high in heat conductivity, large in heat storage capacity, high in thermal shock resistance and large in compression strength.

The utility model relates to the technical field of thin oil pipelines, in particular to an efficient flushing and filtering device for a thin oil pipeline. Comprising a main pipe, an oil inlet connector, an oil outlet connector, a cooling structure and a filter screen. The oil inlet connector and the oil outlet connector are fixedly connected to the two ends of the main pipe respectively, the oil inlet connector is connected with the oil outlet pipe, and the oil outlet connector is connected with an oil return opening pipeline of the oil tank. The cooling structure is installed on the outer wall of the main pipe and cools liquid in the main pipe. First to N stages of filter screens are sequentially arranged between the oil inlet connector end and the cooling structure, N is larger than or equal to 3, and more than N stages of filter screens are arranged between the cooling structure and the oil outlet connector. A thin oil pipeline, especially a thin oil pipeline with a certain length, can be efficiently flushed and filtered; the structure is simple, use is easy, and cost is greatly saved.

The invention discloses a PCR instrument for food microorganism detection, and aims to solve the problems of unstable temperature control, low temperature rising and falling speed, low temperature control precision and the like of an existing PCR instrument. The PCR instrument comprises a PCR instrument main body, a thermostatic bath, a water tank, an electric heating plate, a circulating pump, a control panel and a temperature sensing probe. Through liquid medium heating and circulating pump driving, water flow circulation in the liquid guide groove is achieved, and uniform temperature distribution is ensured. The system adopts a multi-point temperature monitoring and PID control algorithm, the power of the electric heating plate is accurately adjusted, the system has the functions of rapid heating and cooling, and the temperature control precision and efficiency are remarkably improved. In addition, the PCR instrument is provided with an intelligent fault detection and alarm system, temperature abnormity or water circulation faults can be automatically processed, operation is easy and convenient, and the automation degree is high. The PCR instrument is particularly suitable for the field of food microorganism detection, provides a stable, rapid and efficient PCR reaction environment, and ensures the accuracy and reliability of a detection result.

The invention provides a high-temperature-resistant electrolyte for a lithium-manganese battery and a preparation method and application of the high-temperature-resistant electrolyte, and belongs to the technical field of battery electrolytes.The high-temperature-resistant electrolyte comprises lithium salt, an organic solvent, a high-temperature-resistant additive and a flame retardant, and the high-temperature-resistant additive is polydimethylsiloxane, hexamethyldisilazane, fluoroethylene carbonate and 1, 2-propylene glycol; and one or more of 1, 3-propane sultone. Aiming at the defects of the existing electrolyte, the invention develops the electrolyte with high thermal stability and strong compatibility with the lithium elementary substance, and the electrolyte can still keep stable performance under the condition of long-time storage at 80 DEG C, and has good performance on parameters such as differential pressure, internal resistance after storage, electrolyte loss rate after storage and the like. The decomposition of the electrolyte under a high-temperature condition is reduced, the electrolyte is better matched with the system characteristics and the use environment of the lithium-manganese battery, and the application range and field of the lithium-manganese battery are widened.

The invention relates to the field of household daily necessities, in particular to prefabricated cabin equipment based on transformation of a transformer substation. The prefabricated cabin equipment based on transformation of the transformer substation comprises a prefabricated cabin body, a frame body and a filter screen, a through hole is formed in one side of the prefabricated cabin body, draft fan blades are installed in the through hole, the frame body is fixedly connected to the side, close to the through hole, of the prefabricated cabin body, and air inlets and air outlets are formed in the two sides, away from the prefabricated cabin body, of the frame body; a U-shaped channel is installed in the frame body and communicated with the air inlet and the air outlet, clear water is injected into the bottom of the U-shaped channel, and a filter screen is installed in the air inlet. According to the invention, the cooled air is primarily filtered through the elaborately designed filter screen, so that particulate matters such as dust and impurities in the external environment are effectively blocked, and the air entering the prefabricated cabin is ensured to be cleaner; the step not only improves the air quality, but also reduces the problem of poor heat dissipation of equipment caused by dust accumulation, and improves the heat dissipation efficiency.

The invention belongs to the technical field of machine tool spindles, and particularly relates to a water suspension spindle structure with an external throttler for a machine tool, a spindle body penetrates through a spindle box body and is rotatably connected into the spindle box body, an air inlet rear cover and a water inlet rear cover are detachably connected to the spindle box body, and the air inlet rear cover is arranged between the spindle box body and the water inlet rear cover; a rear floating disc locking nut is in threaded connection with the main shaft body, a rear floating disc body is arranged between the rear floating disc locking nut and the main shaft body, a plurality of axial throttlers and radial throttlers are arranged on the air inlet rear cover in the circumferential direction, a hydraulic water inlet is formed in the water inlet rear cover, and the air inlet rear cover is provided with annular grooves communicated with the axial throttlers and the radial throttlers. The spindle box body is simple in structure, reliable in control and simple in using method, under the action of throttled water pressure, the spindle box body suspends the spindle and the rear floating disc, constraint on the spindle is formed, and therefore the rotating precision and stability of the spindle are guaranteed, and the precision of parts produced and machined by a machine tool can be further guaranteed.

The invention provides a dual-fuel injection system, an injection method and an engine. The dual-fuel injection system comprises a control unit, a fuel injection control unit, a fuel injection control unit and a fuel injection control unit, the first injection subsystem comprises a first fuel pressure source and a first injector; the first fuel pressure source is communicated with the first injector, so that first fuel can flow to the first injector and be injected; the second injection subsystem comprises a second fuel pressure source, a water pressure source, a first valve and a second injector; the second fuel pressure source and the water pressure source communicate with the first valve, the first valve communicates with the second ejector, and the first valve is used for switching communication between the second fuel pressure source and the second ejector or communication between the water pressure source and the second ejector. A second fuel or water can flow to the first valve and then flow to the second injector to be injected.

The invention provides a cooling structure and a machine tool cooling system.The cooling structure comprises a heat exchanger, the heat exchanger is provided with a first heat exchange pipeline and a second heat exchange channel which are relatively independent, and the two ends of the first heat exchange channel are used for being connected with a to-be-cooled component so that a cooling medium can be input into the to-be-cooled component to cool the to-be-cooled component; the cooling medium for cooling the to-be-cooled part is subjected to heat exchange through the second heat exchange channel; the first heat exchange channel comprises a first flow channel and a second flow channel which are relatively independent so that two different cooling media can flow in the first flow channel and the second flow channel correspondingly. The inlet end and the outlet end of the cooling assembly are used for communicating with the two ports of the second heat exchange channel, so that a refrigerant is input into the second heat exchange channel, and the cooling medium located in the first heat exchange channel is cooled; the problem that in the prior art, when multiple cooling media are used for cooling a machine tool, multiple coolers need to be arranged is solved.

The invention discloses a TEC-driven phase change material heat storage and release experimental device, comprising: two experimental modules, two groups of temperature control modules and a data acquisition unit, wherein the two experimental modules are arranged in the same experimental box, and different TEC-driven phase change materials are filled inside respectively; the two groups of temperature control modules are arranged corresponding to the two experimental modules, and the data acquisition unit comprises two thermocouples and a data acquisition instrument, and the two thermocouples are respectively arranged inside the outer shells of the two experimental modules. The invention utilizes different temperature curves of different phase change materials in the phase change process, collects the temperature changes of the phase change materials in the two experimental modules in the whole phase change process in real time through the thermocouples, and then receives and draws the temperature curves of the phase change materials corresponding to the two experimental modules in the phase change process by the data acquisition instrument, thereby evaluating the performance and application potential of the phase change material according to key parameters such as the phase change temperature, the phase change latent heat, and the cyclicity of the phase change material.

This utility model provides a door assembly and a steam oven including the same. The door assembly is used in the steam oven and includes a door and a water tank. The door is used to open or close the steam oven, and the water tank is installed on the door and located inside the steam oven. The door is made of a high-temperature resistant transparent material so that the user can observe the water level in the water tank from the outside of the steam oven. The transparent material of the door makes the water tank visible, reminding the user to add water before cooking, effectively avoiding interruptions in cooking due to lack of water. The integrated design of the door and water tank utilizes the heat that would otherwise be lost at the door, serving as preheating water and improving energy efficiency. At the same time, the high specific heat capacity of water can act as insulation, reducing the temperature of the outer surface of the door. In addition, the installation method of the water tank does not occupy the cooking cavity space of the steam oven, increasing the effective volume of the cooking cavity and making the whole machine more compact.

The utility model provides a cooking fume and hot water integrated system which comprises a water heater and a range hood, and an exhaust pipeline of the water heater is communicated with a fan system of the range hood; the range hood comprises a cooling pipeline, one end of the cooling pipeline is connected with a water inlet pipeline of the water heater, and the other end of the cooling pipeline is connected with a water outlet pipeline of the water heater; an auxiliary heat exchange pipeline is further arranged on an air outlet of the fan system of the range hood, and a heat exchange device is arranged on the auxiliary heat exchange pipeline and used for conducting heat exchange on hot air exhausted by the range hood. According to the oil fume and hot water integrated system, the range hood and the water heater share the fan system and the pipeline system, so that integration of oil fume discharge and hot water supply is realized, the space cost is saved, the source utilization efficiency is also improved, and a water source of the water heater is utilized to clean the range hood and cool the fan in work.

The utility model relates to a multi-mode energy storage liquid cooling system which comprises a cooling liquid circulation pipeline, a refrigeration heat exchange pipeline and a heating pipeline, the inlet end and the outlet end of the cooling liquid circulation pipeline are respectively connected with a battery bin, and a circulation water pump, a water inlet temperature sensor and a water outlet temperature sensor are arranged on the cooling liquid circulation pipeline. The refrigeration heat exchange pipeline comprises a compressor, a first heat exchanger, a throttling element and a second heat exchanger which are sequentially connected, a heat exchange pipe of the cooling liquid circulation pipeline is connected to the second heat exchanger in series, and the heating pipeline and the heat exchange pipe are arranged in parallel. The liquid cooling system is high in heat exchange coefficient, large in specific heat capacity, high in cooling speed and small in influence of altitude and air pressure. The liquid cooling system has multiple working modes and can operate in an energy-saving manner according to temperature changes.

This utility model relates to the field of energy storage cabinet heat dissipation technology, and more particularly to an energy storage cabinet heat dissipation system, comprising: a cabinet body, with a battery chamber and a liquid cooling chamber inside; the battery chamber is equipped with a temperature sensor and a first liquid cooling plate; the liquid cooling chamber is equipped with a liquid cooling unit; the liquid cooling unit includes an inlet pipe, both the temperature sensor and the inlet pipe are connected to a circulating pump, the circulating pump is connected to a radiator through a first regulating valve, the circulating pump is connected to a heat exchanger through a second regulating valve, the radiator is connected to a cooler and a heat exchanger respectively, the cooler is connected to a cooling fan, the heat exchanger is connected to a heater and a gas-liquid separator respectively, the heater is connected to the first liquid cooling plate through an outlet pipe, and both the cooler and the gas-liquid separator are connected to an air compressor. This utility model's energy storage cabinet heat dissipation system can more quickly and effectively remove heat from the energy storage battery, ensuring that the battery can operate at a suitable temperature, improving battery performance and lifespan.

The utility model relates to the technical field of plastic shells, and discloses a composite heat dissipation plastic protective shell which comprises a protective shell body, an active heat dissipation assembly is installed at the top of the protective shell body, a first strip-shaped groove is formed in the top of the inner wall of the protective shell body, and second strip-shaped grooves are formed in the two sides of the inner wall of the protective shell body. Bottom heat dissipation holes are formed in the middle of the bottom of the protection shell body, top heat dissipation holes are formed in the middle of the top of the protection shell body, and a heat dissipation aluminum plate is installed on the top of the inner wall of the protection shell body. According to the protective shell, heat is more easily and directly dissipated into external air through the protective shell main body, low-temperature air at the bottom enters the protective shell main body through the second strip-shaped grooves and the bottom heat dissipation holes, high-temperature air in the protective shell main body is discharged through the top heat dissipation holes, and therefore the protective shell main body has a good heat dissipation effect.

The invention relates to the related technical field of textile equipment, in particular to cooling equipment for polypropylene filament yarn production and processing and a production technology.The cooling equipment comprises a base, polypropylene filament yarn forming equipment, a cooling wheel, a guide wheel and a cooling water tank, a mounting plate is fixedly mounted on the base, a mounting shaft is fixedly mounted on the mounting plate, and a main air channel is formed in the mounting shaft; an air pipe connector is formed at a port of the main air passage; the cooling wheel is rotationally mounted on the mounting shaft through the first-stage sealing bearing and the second-stage sealing bearing, the first-stage air channel, the second-stage air channel, the third-stage air channel, the fourth-stage air channel and the cooling air channel are formed in the cooling wheel, and it is guaranteed that the lower side edge of the guide wheel makes contact with water in the cooling water tank, so that the cooling air channel is soaked by the water in the cooling water tank, and the cooling effect is improved. Therefore, the humidity of the air flow blown out of the cooling air channel is increased, the specific heat capacity of the air flow is increased, the air flow can take away more heat, and the purpose of improving the cooling and shaping efficiency of the cellosilk is achieved.

The present application discloses an environmentally friendly binary carbonate circulation reaction system, including a reaction system, a spray system, a delivery pump, a filter and a membrane separator, wherein the reaction system includes a reactor. The reactor is filled with molten salt, and the upper part of the reactor is provided with a biomass feed port, a molten salt inlet, a gasification agent inlet and a pyrolysis gas outlet, and the upper part of the reactor side wall is provided with an overflow port, and the molten salt liquid level in the reactor is slightly higher than the overflow port; the overflow port of the reactor is connected to the spray system through an overflow pipe, and the activated carbon produced by the reaction in the reactor can overflow into the spray system together with the molten salt, and the spray system sprays clean water for washing treatment, filtering, and drying the wet activated carbon filter residue to obtain an activated carbon product, and the filtrate is desalinated by the membrane separator, and the obtained concentrated salt solution is reused in the reactor. The present invention realizes the recycling of water vapor and molten salt in the reaction system, strengthens the reaction, simplifies the process, and has the advantages of environmental protection, energy saving and no consumption.

The application discloses a construction method of an energy storage matrix of an open-pit mine after mining is completed, and comprises the following steps: before mining reaches the end position, construction steps are arranged on the mining steps at intervals, a plurality of pits are intermittently dug on the construction steps by means of interval excavation, and finally, an energy storage unit is built, wherein the energy storage units are arranged in parallel and continuously on the whole construction step platform; a single energy storage unit is divided into a plurality of grids as energy storage grids, and a chemical energy storage cabinet is arranged in each energy storage grid; a spraying fire extinguishing system is installed on the top of all the energy storage units; the bottom of the open-pit mine is waterproofed and constructed into a centralized water storage pool; a high-level water storage pool is constructed at the end slope of the open-pit mine, and the high-level water storage pool is connected with the centralized water storage pool at the bottom of the pit; according to the environmental conditions of the region where the mine is located, a new energy power generation base is constructed on the top of the open-pit mine dump, the surface of other mining areas and the top of the energy storage units, and the generated electric energy is transmitted to the energy storage matrix for storage.

The utility model relates to a great wall plate, and particularly discloses a great wall plate containing phase-change materials, which comprises a plate body, a plurality of grid parts are arranged on the plate body, accommodating spaces are formed on the grid parts, phase-change components are arranged in the accommodating spaces, and the grid parts are filled with the phase-change components. A plurality of grid parts are arranged on the plate body, capsule parts and heat conduction parts can be filled in the grid parts, phase change materials can be arranged in the capsule parts, have large specific heat capacity and are substances capable of providing latent heat, the phase change materials can absorb or release a large amount of latent heat, and the function of being warm in winter and cool in summer is achieved to a certain extent. By arranging the phase change material, the problem that an existing great wall plate is single in performance can be solved, and the great wall plate has the function of absorbing or releasing a large amount of latent heat. In addition, a connecting piece is further arranged, the two plate bodies can be connected together through the connecting piece, the connecting position of the two adjacent plate bodies can be in a sealed state through the connecting piece, and the waterproof effect is achieved.