117results about How to "Reduce exchange" patented technology

The invention discloses a back contact cell, a photovoltaic module and a photovoltaic system.The back contact cell comprises first areas, second areas and isolation areas which are arranged on the shady face of a silicon substrate, the first areas and the second areas are alternately arranged, and the isolation areas are located between the first areas and the second areas; the first region comprises a first doped conductive layer, the second region comprises a second doped conductive layer, and the doping type of the first doped conductive layer is opposite to that of the second doped conductive layer; the side, close to the isolation area, of the first area is provided with a concave structure. According to the invention, efficient isolation of different doped regions on the back surface of the back contact cell can be realized, so that the photoelectric conversion efficiency of the back contact cell is improved.

The invention discloses a micro-channel jet reactor. The micro-channel jet reactor comprises a sample introduction unit, a main mixing unit and a reaction unit which are sequentially communicated, the main mixing unit comprises a first inner pipe and a first outer pipe arranged outside the first inner pipe in a sleeving manner; a first annular space is formed between the first inner pipe and the first outer pipe; the sample introduction unit is communicated with the first inner pipe; a second sample inlet is formed in the first annular space, and a plurality of through holes are formed in the first inner pipe; the reaction unit comprises a second inner pipe and a second outer pipe arranged outside the second inner pipe in a sleeving manner; a second annular space is formed between the second inner pipe and the second outer pipe; the first inner pipe is communicated with the second inner pipe; during use, condensate is arranged in the second annular space. The reactor can effectively improve the mixing uniformity degree of reaction liquid, meanwhile, the reaction temperature is controlled, and the reaction rate and selectivity are ensured.

The invention discloses an environment-friendly safe low-smoke halogen-free cable, and relates to the technical field of cables, the environment-friendly safe low-smoke halogen-free cable comprises a cable assembly, the cable assembly comprises an outer sheath, the outer surface of the outer sheath is fixedly communicated with an air outlet assembly, a plurality of conductors are arranged in the outer sheath, each conductor is hollow, and the outer surface of the outer sheath is fixedly communicated with the air outlet assembly. A plurality of filling pipes are arranged among the exteriors of the plurality of conductors, and the plurality of filling pipes are hollow; according to the environment-friendly safe low-smoke halogen-free cable, when the temperature of air around the cable is low, cold air enters the hollow conductor from the air inlet, air convection is formed in the conductor, heat is taken away and then discharged from the air outlet, and when excessive heat is generated in the use process of the conductor, the heat can enter the filling pipe through the multiple drainage holes, so that the cable is protected. And heat can flow in the conductor, so that excessive local heat dissipation of the conductor can be prevented.

The invention discloses a cotton yarn stretching testing device, and belongs to the technical field of cotton yarn stretching testing devices, the cotton yarn stretching testing device comprises a stretching tester, the upper surface of the stretching tester is fixedly connected with a support frame, and the side surface of the support frame and the upper surface of the stretching tester are provided with clamp pieces; the humidity protection pipe is arranged on the outer surface of the supporting frame, and the outer surface of the supporting frame is fixedly connected with an electric push rod. Meanwhile, cold air can be blown into the sealed protective cover through an air cooler, a cold air pipe, a connecting pipe and an air outlet pipe to create a cold and wet environment, a temperature and humidity sensor can monitor the temperature in the protective cover in real time, and the limitation that a traditional cotton yarn can only be subjected to a stretching test under the dry condition is avoided; it is ensured that the test result is closer to the actual application environment, accurate control over the humidity and temperature of the test environment is achieved, and the stretching test of the cotton yarn under different cold air and humidity climates can be simulated.

The invention discloses a composite heat preservation floor, and particularly relates to the technical field of composite floors, the composite heat preservation floor comprises a basic reinforcing layer, a high-heat-conduction composite layer, a heat conduction liquid pipe and a heat conduction reinforcing layer, and a solid wood layer is arranged on the upper end face of the basic reinforcing layer; the efficient heat conduction network is formed through tight combination of the heat conduction enhancement layer and the metal copper wire net, and heat generated by floor heating can be rapidly and evenly dispersed to all areas of the heat conduction enhancement layer through the grid structure of the metal copper wire net; due to the uniform heat distribution, the temperature gradient formed by heat in the heat conduction enhancement layer is greatly reduced, the loss and retention of the heat in the conduction process are reduced, the heat is effectively reserved in the indoor space, a large amount of heat energy can be stored when floor heating heat is absorbed through the heat conduction liquid pipe, and after the indoor temperature reaches a set value, the heat conduction liquid pipe is closed. Even if heat supply of floor heating fluctuates or pauses, heat stored in the heat conduction oil can be slowly released, and indoor heat can be kept in the space for a longer time.

The invention discloses a clean room disinfection device and a disinfection method thereof, and relates to the technical field of disinfection devices. According to the clean room disinfection device and the disinfection method thereof, through the arrangement of the disinfection frame, a disinfectant can be sprayed into the clean room body through a plurality of atomization nozzles to realize disinfection treatment, and a traction rope is wound through operation of a driving shaft during disinfection, so that a plurality of transmission sliding plates can drive an elastic cleaning scraper to operate; and a disinfectant dripping from the top surface of the bearing plate is scraped, so that the disinfectant is prevented from being left on the surface of the bearing plate, on one hand, the humidity in the cleaning room body is prevented from being influenced, on the other hand, the internal environment of the cleaning room body is prevented from being influenced after the disinfectant is dried, and the disinfection effect of equipment is effectively improved.

The invention provides an engineered wood veneer carbon-based light energy-saving material and a cabinet door plate product thereof. The engineered wood veneer carbon-based light energy-saving material comprises a carbon-based core material and an engineered wood veneer, the carbon-based core material comprises 25-60 parts of bamboo charcoal powder, 5-15 parts of bamboo activated carbon powder, 10-20 parts of bamboo powder, 40-70 parts of thermoplastic polymer master batch and 1-10 parts of processing auxiliary materials; the technical wood veneer comprises a technical wood veneer and a water-based environment-friendly heterogeneous adhesive. The material is prepared by preparation of a carbon-based core material and processing and compounding of a technical wood veneer, wherein the preparation of the carbon-based core material comprises the steps of batching and weighing, high-speed stirring, melting and granulating, re-mixing and molding and post-processing; technical wood veneer processing and compounding cover veneer preparation, adhesive blending, uniform gluing, assembly pre-pressing and three-section type cold pressing curing. According to the technical wood veneer carbon-based light energy-saving material and the cabinet door plate product thereof, through material formula design and preparation process planning, light weight, high strength, heat insulation, low formaldehyde release and diversified decoration are integrated, and the low-cost environment-friendly target of resource recycling is achieved.

The utility model relates to the technical field of glass panel tempering, and discloses a glass panel quenching and tempering treatment device which comprises a treatment box, a heating cavity is formed in one side of the interior of the treatment box, a feeding port is formed in one side of the heating cavity, a cooling cavity is formed in the other side of the interior of the treatment box, and a discharging port is formed in one side of the cooling cavity. Through the arrangement of the transfer cavity, the heating cavity is isolated from the cooling cavity, so that direct heat exchange between the heating cavity and the cooling cavity is reduced, the temperature difference between the heating cavity and the cooling cavity is ensured, and the quenching and tempering effects of a glass panel are ensured; the left baffle and the right baffle are alternately lifted, it is guaranteed that the heating cavity, the transfer cavity and the cooling cavity cannot communicate at the same time, and therefore the quenching and tempering efficiency of the glass panel is further guaranteed.

The utility model relates to the technical field of cables, in particular to a bending-resistant cable, which comprises a sheath and a heat insulation layer, three leads are arranged in the sheath in a penetrating manner, a heat insulation layer is sleeved on the surface of the sheath, the heat insulation layer is a foamed polypropylene layer and positioned in the heat insulation layer, the heat insulation layer is a polyethylene layer, and the heat insulation layer is a polyethylene layer. The surface of the heat preservation layer is sleeved with a waterproof layer which is a polyvinyl chloride layer, and the waterproof layer is fixedly connected with the heat insulation layer. According to the utility model, since the foaming polypropylene material is internally provided with a large number of air cavities, heat exchange between the sheath and the outside can be reduced, the lead generates heat in the power transmission process, and the heat of the lead can heat the sheath by means of the thermal insulation layer, thereby preventing the sheath from hardening, improving the bending resistance of the cable, and prolonging the service life of the cable. And by arranging the heat insulation layer made of a polyethylene material, external low temperature can be further isolated, and the bending resistance of the cable is further improved.

The invention discloses a food packaging film sealing machine, and relates to the technical field of film sealing machines, the food packaging film sealing machine comprises a film sealing rack, the top of the film sealing rack is provided with a belt conveying rack, the top of the inner side of the film sealing rack is fixedly connected with two sets of suspension brackets, and the inner side of each set of suspension bracket is rotationally connected with a fixed roller; and a packaging film is wound between the two fixed rollers. According to the food packaging box, through cooperation of parts such as the gas outlet channel, inert gas is input into the gas outlet channel from the hose and then blown out of the gas outlet of the gas outlet channel, water stains and other stains on the surface of the food packaging box are removed, and the clean surface is beneficial to tight attachment between the packaging film and the food packaging box; the purging of the inert gas ensures that no impurity interference exists in the packaging area, so that the heat sealing head can uniformly and effectively heat and press the packaging film, and the sealing performance and firmness of packaging are improved.

The invention provides a high-durability super-amphiphobic aircraft anti-icing coating and a preparation method thereof.The preparation method comprises the steps that silicon dioxide nanoparticles are loaded on the surfaces of micron attapulgite particles in situ to prepare core-shell structure micro-nano composite particles, and low-surface-energy fluorosilane is added for modification; meanwhile, fluorinated modification is conducted on a waterborne polyurethane adhesive through fluorosilane, the modified micro-nano particles are introduced into the modified polyurethane adhesive, then the surface of semi-cured airplane paint is evenly sprayed with the modified polyurethane adhesive, and the super-amphiphobic anti-icing coating is prepared through curing. The super-double hydrophobic surface prepared by the method shows excellent repellency to liquids (water, rapeseed oil, lubricating oil and hexadecane) with different surface tensions, can delay icing of liquid drops on the surface of a coating for 440 seconds at-15 DEG C, and has excellent comprehensive protection performance of wear resistance, airflow impact resistance, oil stain resistance and acid and alkali corrosion resistance; good super-amphiphobic performance can be kept after mechanical wear and chemical corrosion.

The invention relates to the field of fixed material drying, and discloses a drying and sterilizing device for chicken essence seasoning processing, which comprises a flash main tower, the flash main tower comprises: a tower tank vertically placed and in the shape of a hollow cylinder; a gap is formed between the bottom edge of the inverted cone and the bottom of the tower tank body; the cooling chamber surrounds the outer wall of the bottom of the tower tank body; the hot air chamber surrounds the outer wall of the cooling chamber, the bottom of the hot air chamber is communicated with the inner cavity of the tower tank body, the top of the hot air chamber is communicated with a plurality of air inlet short pipes which are equidistantly distributed along the periphery of the hot air chamber, the air outlet direction of the air inlet short pipes in the hot air chamber is obliquely downward and blows towards the outer wall side of the hot air chamber, and an air conveying ring pipe is arranged above the top of the hot air chamber; an air inlet of the air conveying ring pipe communicates with an air outlet of the heat source. The technical problems that in the prior art, hot air flowing into the flash main tower is not uniform, and heat attenuation is large are solved, and the effects that the tower bottom of the flash main tower can be cooled, and the heat attenuation of the hot air is reduced are achieved.

According to the preparation method of the polypyrrole / hot-pressed melamine sponge aerogel provided by the invention, the polypyrrole is loaded on the hot-pressed melamine sponge in situ by utilizing a pyrrole polymerization reaction, the obtained aerogel can fully utilize the excellent optical performance of the polypyrrole and the porous structure of the hot-pressed melamine sponge, and the polypyrrole / hot-pressed melamine sponge aerogel is prepared. The preparation of the polypyrrole / hot-pressed melamine sponge aerogel which is high in mechanical property, super-hydrophilic, low in thermal conductivity and high in photo-thermal conversion efficiency is realized. The polypyrrole / hot-pressed melamine sponge aerogel prepared by the method provided by the invention can be applied to solar evaporation in saline water, actual seawater or heavy metal wastewater so as to obtain a clean water source.

The utility model discloses a window and screen integrated Chinese style window which comprises a window frame assembly and a middle column assembly, an upper window frame, a left window frame and a right window frame are defined by the window frame assembly and the middle column assembly, glass assemblies are fixedly connected in the upper window frame and the right window frame, and a window sash assembly and a screen window assembly are arranged in the left window frame. The window sash assembly is hinged to the side, close to the indoor space, of the left window frame, a glass assembly is fixedly connected into the window sash assembly, the screen window assembly is fixedly connected with the side, close to the outdoor space, of the left window frame, a sealing rubber strip assembly is arranged between the window sash assembly and the left window frame, and an invisible drainage groove is formed in the lower portion of the left window frame. The screen window assembly and the left window frame are connected in a right-angle attaching type welding mode, the structure is simpler, and connection is firmer; through four sealing rubber strips of the sealing rubber strip assembly and a sealing part in the glass assembly, the sealing performance of the window is improved, indoor and outdoor heat exchange is reduced, and energy consumption is reduced; by arranging the invisible drainage groove, rainwater can be drained in time.

The invention relates to the technical field of vehicle-mounted refrigerators, in particular to a full-automatic Y-direction telescopic and Z-direction lifting vehicle-mounted refrigerator with a transparent door body. The refrigerator comprises a shell body, an inner container shell is arranged in the shell body, an illuminating lamp and a sterilizing lamp are arranged at the top of the inner container shell, a refrigerating system is arranged on the back face of the shell body, a box frame is arranged on the front face of the shell body, a transmission device is arranged on the inner bottom face of the inner container shell, and a containing drawer is arranged on the transmission device. A door plate body is arranged on the front face of the object containing drawer, and a Z-axis moving assembly is movably arranged in the object containing drawer. Opening of the object containing drawer of the vehicle-mounted refrigerator can be directly controlled through the vehicle-mounted screen, the motor drives the transmission device to enable the object containing drawer to automatically move out of the inner container shell, manual pulling and taking are not needed, great convenience is provided for a user, especially in the vehicle running process, the user can conveniently take and use objects at any time, and the user experience is improved. And the use safety and convenience are enhanced.

The utility model provides a movable floating bed device capable of reducing bottom mud pollution. The movable floating bed device comprises a floating bed, a waterproof enclosure, a stirring device and a fixed anchor block, the bottom area of the floating bed is enclosed into a closed area by the waterproof enclosure, so that the exchange between the internal water body and the external water body of the floating bed device is avoided during the operation of the floating bed device; the stirring device is a long-shaft stirring machine and is arranged at the geometric center position of the floating bed, the top of the stirring device is connected with the floating bed, and the stirring device is started to disturb sludge at the bottom of the water body, so that the water body in the waterproof enclosure forms turbid suspension liquid containing polluted organic substances. According to the floating bed device, the problem of poor growth of emergent aquatic plants in the floating bed in the micro-polluted water body is solved, meanwhile, water body bottom mud pollution can be degraded synchronously, and the requirements of purifying water quality and beautifying the environment are met.

The utility model discloses a passive ultra-low energy consumption decoration system, and particularly relates to the technical field of decoration, the system comprises a wall body assembly and a window assembly installed in the wall body assembly, the wall body assembly comprises an inner acanthus, a sandwich insulation board and an outer acanthus, a plurality of uniformly distributed tie pieces are arranged between the inner acanthus and the outer acanthus, and the inner acanthus and the outer acanthus are connected with the sandwich insulation board. The outer wall of each tie piece is fixedly sleeved with two heat insulation ring plates, the window assembly comprises a window frame, a glass frame is hinged to the interior of the window frame, and three pieces of film glass are fixedly arranged in the glass frame. The wall body assembly is composed of the inner leaf plate, the sandwich heat preservation plate, the outer leaf plate and the pulling pieces, energy consumption of indoor equipment can be effectively reduced, meanwhile, the heat insulation ring plate can prevent cold bridges from being formed, the heat preservation performance of the wall body assembly is improved, and in addition, the heat preservation effect is good. The multilayer film glass and the argon filling layer can further reduce indoor and outdoor heat exchange and energy consumption of indoor equipment, and can effectively block sound transmission.

The utility model discloses an aluminum-plastic co-extrusion building system door and window which is composed of an outer frame, a mullion and a glass sash. Glass is arranged between the upper transverse frame and the middle transverse frame and between the lower transverse frame and the middle transverse frame; the upper transverse frame, the middle transverse frame and the lower transverse frame are each composed of an outer profile assembly and an inner profile assembly. The outer profile assembly comprises an outer plate and an outer profile; the outer plate is connected with the outer profile through a first heat preservation and insulation structure. The outer plate and the outer profile are connected through the first heat insulation structure, the outer profile and the inner profile body are connected through the second heat insulation structure, multiple heat resistance barriers are formed, the first heat preservation layers co-extruded on the two sides are matched, a heat conduction path is effectively blocked, and the door and window profile has good heat preservation and heat insulation performance; in addition, heat insulation type aluminum-plastic co-extrusion systematic doors and windows with different K values or U values are constructed by combining the outer sectional material, the sealing structure and different inner sectional material bodies.

The present application relates to the field of communication technology, and more particularly to a kind of fast return 5G network method, including terminal sends the best LTE base station ID to NR base station, NR base station is based on the best LTE base station ID assembly handover request message, 5G core network sends handover request message to LTE core network, LTE core network sends handover request message to the best LTE base station, the best LTE base station saves handover request message, return to 5G network, the present application so LTE base station does not need to trigger the release of inter-system B1 event measurement, directly use the ID value of previously saved NR base station, to do the switching of LTE network to 5G network, if switching fails, initiate inter-system measurement or redirection again, by this way to reach optimization process, reduce signaling exchange, fast return 5G network, thereby solve the problem of long time spent in the prior art returning network method.

This application provides a network access method of a terminal device and an apparatus. According to the method, a terminal device can select one or more reported cells based on a movement route of the terminal device and network deployment information of one or more network cells, and then initiate a network cell handover process to request to be handed over to one of the one or more reported cells. The reported cell is selected based on the movement route of the terminal device and the network deployment information of the network cell, so that the reported cell better matches the movement route of the terminal device, and network access accuracy can be improved. In addition, when accessing a target cell, the terminal device does not search for or measure a cell other than the reported cell, so that unnecessary measurement and reselection are reduced. Therefore, a signaling exchange between the terminal and a network side is reduced, and battery power consumption of the terminal is reduced.

The utility model discloses a multifunctional power measuring environment test chamber, which comprises a first test chamber, a second test chamber, a partition door, a vehicle access gate, an underground space, a power measuring platform, a dynamometer assembly, an illumination assembly and a large fan, a pump room is further arranged outside the first test cabin and the second test cabin, industrial refrigeration equipment and industrial heating equipment are arranged in the pump room, and pipeline systems connected with the industrial refrigeration equipment and the industrial heating equipment are arranged on the first test cabin and the second test cabin respectively. Through the arrangement of the high and low temperature system, the illumination, the fan and the dynamometer assembly, the multifunctional dynamometer environment test chamber not only has the test capabilities of high temperature, low temperature, damp heat and temperature shock, but also has the dynamometer test function under the environments of wind test simulation, solar thermal effect and the like.

The invention belongs to the technical field of wall heat preservation, and particularly relates to a high-stability steel structure heat preservation wall which comprises crosspiece mechanisms which are symmetrically arranged, a butt joint mechanism is arranged at one end of each crosspiece mechanism, and a plurality of supporting rods are arranged between the two crosspiece mechanisms. According to the thermal insulation wall, the transverse baffles and the side baffles are convenient to mount and dismount by arranging the fixing mechanisms, the transverse baffles and the side baffles can be fixed only by aligning the semicircular blocks to the movable grooves and making the semicircular blocks slowly and completely make contact with the movable grooves, and then the limiting effect between the limiting rods and the semicircular blocks can be relieved by pushing the push rods; due to the design of the fixing mechanism, the installation process is visual and simple, constructors do not need to have high professional skills or rich experience, meanwhile, in the batch installation process, the constructors can complete connection of the transverse baffles and the side baffles more efficiently, time waste and manpower consumption caused by the complex installation process are reduced, and the installation efficiency is improved. The overall construction efficiency is improved, and the construction cost is reduced.

This utility model discloses an ultra-low energy consumption thermal insulation system for doors and windows. Its main load-bearing components consist of an outer frame, a mullion, and glass panes. Glass is provided between the upper part of the outer frame and the mullion, and between the two glass panes. The outer frame, mullion, and glass panes are all composed of outer profile components and inner profile components. The outer profile components and inner profile components are connected by a first thermal insulation structure. At least one of the outer profile components and inner profile components is a thermally broken structure. Because at least one of the outer profile components and inner profile components is a thermally broken structure, the specific structures of the inner and outer profile components can be selected according to the required K-value or U-value. Simultaneously, the first thermal insulation structure connects the outer and inner profile components, forming multiple thermal resistance barriers. Combined with the co-extruded insulation layers on both sides, this allows for a variety of K-values ​​or U-values ​​for the windows composed of the inner and outer profile components, thereby meeting the needs of personalized engineering projects.

The application relates to a skylight corner sealing structure and relates to the field of building door and window sealing and waterproofing, which comprises two profiles and a corner, each profile is provided with a cavity, each end of the corner is used for being inserted into the cavity of one of the profiles, the end of each profile close to the other profile is provided with an inclined surface and abuts against each other, and the corner is a plastic corner. The application has the effect of guaranteeing the production quality of the skylight.

The utility model discloses a kind of disinfection and heat preservation function's chicken coop access passageway structure, it is related to chicken coop access passageway technical field, including buffer heat preservation mechanism, disinfection mechanism and pre-heat preservation mechanism, disinfection mechanism includes second connecting passage, in the utility model, by third electric heating tube work, hot air is heated to third connecting passage inside, and outside environment is connected, disinfectant in disinfection tank inside is sprayed from multiple disinfection nozzles by conveying pump work drive, carries out overall disinfection to chicken group, second electric heating tube heats first connecting passage inside temperature and chicken coop inside temperature match, second connecting passage is arranged between first connecting passage and third connecting passage, reduce the heat exchange with outside, realize the collaborative work of disinfection and heat preservation, both can block pathogen transmission, and can reduce environmental temperature fluctuation stress to chicken group.

The utility model provides a rotatable detachable screen window, which belongs to the technical field of door and window structures, and comprises a screen sash, a gauze element, a screen sash pressing line and a screen sash lock, the outer side of the gauze element is fixedly connected with the screen sash through a first bolt, the inner side of the gauze element is fixedly connected with the screen sash pressing line, and the screen sash pressing line is fixedly connected with the screen sash lock. The gauze sash is fixedly connected with the gauze sash lock, the gauze sash pressing line is fixedly connected with the gauze sash lock, the gauze sash lock is located below the gauze sash, the gauze element and the gauze sash pressing line, a lock seat is arranged below the gauze sash lock, a hinge is arranged between the gauze sash lock and the lock seat, and the gauze sash lock is fixedly connected with the gauze sash pressing line. The screen sash lock is rotationally connected with the lock seat through the hinge, a heat insulation cavity is formed below the lock seat, the lock seat is fixedly connected with the heat insulation cavity through a fixing jackscrew, and the problem that an existing screen window is inconvenient to disassemble can be solved.

The utility model relates to the technical field of door and window profiles, and discloses a novel heat insulation profile based on a cold-proof door and window, which comprises two metal profiles, the two metal profiles are connected through a sealing heat insulation strip, a heat insulation cavity A is formed between the sealing heat insulation strip and a wall plate of the metal profiles, a heat insulation cavity B is arranged in the metal profiles, and the heat insulation cavity A is communicated with the heat insulation cavity B; reinforcing ribs are fixedly connected between the inner walls of the heat insulation cavity A. Separating grooves are formed in the side walls of the reinforcing ribs in a penetrating mode, and a containing cavity used for containing glass is formed between the sealing assemblies. The heat insulation cavity A is formed between the metal section bar and the sealing heat insulation strip which are arranged side by side, and the heat insulation cavity B is formed in the metal section bar, so that metal conduction can be replaced by air conduction, and indoor and outdoor heat transfer is reduced; the heat-insulating glass can be used as an isolating layer for heat transfer between a door and window frame and glass, reduces indoor and outdoor temperature exchange, achieves heat-insulating and heat-preserving effects, and meanwhile improves sealing performance of doors and windows.

The utility model belongs to the technical field of building equipment, and particularly relates to an assembly type green building construction wall which comprises a construction wall body, and installation assemblies are arranged on the two sides of the construction wall body. The mounting assembly comprises a mounting block, and the mounting block is fixedly connected to one side of the construction wall body. According to the utility model, the mounting assembly is arranged, and the mounting block is matched with the mounting groove, so that during mounting, the mounting block of one construction wall body is aligned with the mounting groove of the other construction wall body to be inserted, and then the screw rod, the gasket and the nut are used for fixing. Compared with a complex installation structure of a traditional fabricated construction wall, the design is simpler to operate, common constructors can master the installation method through simple training, dependence on professional technicians is greatly reduced, meanwhile, installation time and labor cost are reduced, construction efficiency is improved, and the construction cost is reduced. And the modern fast-paced building construction requirements can be better met.

The utility model discloses a heat preservation device of an air heat exchanger, which belongs to the technical field of air heat exchangers, and comprises a heat preservation shell which covers the air heat exchanger, a heat preservation gap is arranged between the air heat exchanger shell and the heat preservation shell, the heat preservation shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected through a connecting piece; the heating assembly comprises a heating element, a temperature sensor and a controller, the heating element and the temperature sensor are both arranged in the heat preservation gap, the controller is arranged outside the heat preservation shell, the heating element is electrically connected with the controller, and the controller receives electric signals transmitted by the temperature sensor and controls the heating element to work. According to the heat preservation device, the upper shell and the lower shell are buckled to form the heat preservation gap, the heating assembly is arranged in the heat preservation gap, the low heat conduction characteristic of air is utilized, heat exchange is reduced, the heat preservation effect is good, and the energy utilization efficiency is high. In addition, the detachable design facilitates maintenance.

The present invention belongs to the technical field of determination of gaseous hydrocarbon hydrogen isotope composition in mineral inclusions, and specifically discloses a device and method for extracting gaseous hydrocarbon hydrogen isotope composition in mineral inclusions. The present invention adopts helium as the protective carrier gas of the online continuous flow system, and each helium uses a water trap filled with magnesium perchlorate to absorb and dry the trace water that may exist in the helium, so as to avoid the influence of the trace water in the carrier gas on the test results of the gaseous hydrocarbon hydrogen isotope composition. The present invention adopts an online continuous flow method to connect the mineral inclusion explosion device, methane oxidation, and product water collection device with a stable isotope mass spectrometer, so as to realize the online heating explosion of the mineral in the helium flow environment, the online oxidation of methane, the online collection of the oxidation product water, and the electric heating and release of water into the stable isotope mass spectrometer for testing. Compared with the traditional offline method, the sample amount is greatly reduced, thereby effectively reducing the workload of mineral processing and the scientific research cost, and improving the scientific research efficiency.