31results about How to "Improve leakage" patented technology

The utility model discloses a semiconductor device. The semiconductor device includes: a substrate; the buffer layer is positioned on one side of the substrate; the channel layer is located on the side, away from the substrate, of the buffer layer; the composite barrier layer comprises a first barrier layer and a second barrier layer, the first barrier layer is located on the side, away from the buffer layer, of the channel layer, and the second barrier layer is located on the side, away from the channel layer, of the first barrier layer; the band gap of the second barrier layer is larger than that of the first barrier layer; the dielectric layer is located on the side, away from the channel layer, of the composite barrier layer; the grid is located on one side, away from the composite barrier layer, of the dielectric layer; the source electrode is located on the side, away from the channel layer, of the composite barrier layer; and the drain electrode is positioned on one side, far away from the channel layer, of the composite barrier layer. According to the technical scheme, the dynamic characteristics of the depletion type gallium nitride semiconductor device are improved.

The utility model discloses a chlorine liquefier tube head welding structure which comprises a tube plate and a plurality of heat exchange tubes, and the heat exchange tubes are arranged on the tube plate in a penetrating mode. The length of the part, extending out of the tube plate, of the tube head of the heat exchange tube is 0-1mm; the tube plate is provided with a groove used for being connected with a heat exchange tube, and the angle of the groove ranges from 45 degrees to 60 degrees. The heat exchange tube is in interference fit with the hole wall of the tube plate through expanded connection, and the groove is filled with a welding seam to fixedly connect the heat exchange tube with the tube plate. According to the chlorine liquefier pipe head welding structure, the welding quality of the chlorine liquefier pipe head can be improved, the connection reliability is enhanced, and leakage is effectively prevented.

This application discloses an electric rice cooker with a metal inner lid, including a pot body, an inner pot, and a lid. The lid includes a plastic lid assembly and a metal inner lid. The metal inner lid is mounted on the plastic lid assembly and has a sealing surface that mates with the inner pot. The metal inner lid directly covers the inner pot to form a cooking cavity. A cooling device is provided inside the plastic lid assembly. The plastic lid assembly has an air inlet on the side facing the external environment. The air inlet of the cooling device is connected to the air inlet. An air duct is provided in the lid, and the air duct has an air outlet located at the rear of the rice cooker in the front-to-back direction. The cooling device generates airflow that is guided through the air duct to cool the metal inner lid, causing condensation to form on the lower surface of the metal inner lid. At least part of the condensation flows into the sealing surface to form a water seal. This improves the steam leakage problem that may occur at this joint in existing rice cookers, reduces the impact of hot airflow on the user, and enhances the user experience.

The utility model discloses a titanium alloy pipe sealing detection equipment relates to industrial detection and quality control technical field, including bottom plate, moving assembly, sealed connection subassembly, nitrogen storage and delivery subassembly and detection component, the bottom plate upper end is equipped with moving assembly, nitrogen storage and delivery subassembly and detection component, moving assembly contains dovetail type sliding slot, two -way threaded rod no.

The utility model relates to the technical field of batteries, and discloses a liquid injection hole sealing element and a battery cell cover plate, the liquid injection hole sealing element comprises a sealing nail and a strengthening structure; the sealing nail is provided with a containing space, and the containing space extends in the axial direction of the sealing nail and penetrates through the first surface of the sealing nail. At least part of the reinforcing structure is arranged in the containing space, the reinforcing structure is connected with the sealing nail, and the hardness of the reinforcing structure is larger than that of the sealing nail. According to the liquid injection hole sealing element disclosed by the utility model, the two parts with different hardness are matched and connected, and injection molding parameters can be independently optimized according to the hardness requirements of each part, so that the injection molding difficulty of the tail part of the sealing nail is reduced, the manufacturing requirements of the liquid injection hole sealing element are reduced, the manufacturing difficulty is reduced, and the production efficiency is improved; and the hardness of the reinforcing structure is greater than that of the sealing nail, so that nail insertion of equipment is facilitated, and meanwhile, the risk of head-to-tail adhesion of adjacent liquid injection hole sealing elements in the transportation process is reduced.

The application discloses an engine fuel injection pump performance test platform and relates to the technical field of fuel injection pump performance test.The application comprises a test table, a test drive is installed on the test table, a mounting seat is installed on the upper surface of the test table, a fuel injection pump with a thermocouple is installed on the mounting seat, a test cover is slidably connected to the upper surface of the test table, electric heating radiators are linearly arranged on the inner wall of the test cover, an independent cold cavity is arranged on the outer side of the test cover, and the cold cavity can be connected with the test cover.Through the double-environment cavity formed by the test cover and the cold cavity, the inside of the test cover simulates a high-temperature environment, the cold cavity simulates high-speed cooling air flow, a heating surface simulates a hot radiation surface close to an engine cabin, and a windward surface simulates a wind surface of a fuel injection pump in the process of vehicle driving, so that the test result is closer to reality, and the extreme transient working condition of high-speed impact of a car into rain or alternating impact of high-temperature and low-temperature air can be accurately simulated.

The utility model relates to the technical field of vertical water pumps, in particular to an anti-oil-throwing oil tank sealing device of a vertical water pump, which comprises a motor, a connecting piece is fixedly mounted at the bottom of the motor, a shell is fixedly mounted at the bottom of the connecting piece, a rotating shaft is fixedly mounted at the driving end of the motor, and an oil tank is fixedly mounted at the top of the shell. According to the anti-oil-throwing oil tank sealing device of the vertical water pump, the motor, the shell, the connecting piece, the oil tank, the lower sealing cover, the upper sealing cover, the rotating shaft, the shaft sleeve, the rubber sealing ring, the annular embedded part, the sealing lip, the oil retainer, the oil collecting groove and the recycling hole are used in cooperation, and unrelated parts in the device are the same as those in the prior art or can be achieved through the prior art. The sealing device has excellent anti-leakage performance, the oil retainer and the oil collecting groove on the shaft sleeve can effectively block and collect thrown lubricating oil, the lubricating oil flows back to an oil tank through the recovery hole, and the oil throwing prevention effect is enhanced.

According to the application of the urine TRPV5 as the biomarker in chronic kidney disease diagnosis and risk assessment, it is found for the first time that the TRPV5 and the detectable fragment thereof exist in the urine, the content of the TRPV5 and the detectable fragment thereof in the urine is in positive correlation with the chronic kidney disease CKD, the CKD can be diagnosed by detecting the content of the TRPV5 in the urine, and the application of the TRPV5 and the detectable fragment thereof in the diagnosis and risk assessment of the chronic kidney disease in the diagnosis and risk assessment of the chronic kidney disease is achieved. The invention also provides a specific in-vitro diagnosis method and a kit. According to the in-vitro diagnosis method, multiple defects of the existing CKD diagnosis technology are overcome, a brand-new diagnosis tool which is noninvasive, sensitive and specific and can be used for staging and prognosis evaluation is provided, and the in-vitro diagnosis method has remarkable scientific and technological advancement and wide clinical application prospects.

The invention relates to the technical field of air storage air compressors, and discloses a high-stability air compressor for energy storage, which comprises a damping base and a damping assembly, a compressor is arranged on the inner wall of the damping base, and an air inlet pipe is fixedly mounted on the right side of the compressor; the damping assembly comprises a moving frame, an adjusting hole, a moving hole, an elastic telescopic rod, a limiting groove, an elastic telescopic plate, an elastic telescopic roller and a damping frame, the moving frame is fixedly installed at the bottom of the compressor, the adjusting hole is formed in the front side of the damping base, and the moving hole is formed in the front side of the moving frame. When the elastic telescopic plate is pressed to move downwards, the elastic telescopic plate is separated from the limiting groove and the limiting to the elastic telescopic rod is relieved, the triggering mode of pressing unlocking can prevent limiting failure caused by accidental touch in the daily operation process, and the design of automatic limiting after resetting can ensure that the elastic telescopic rod is stably locked; therefore, excessive vibration leakage caused by limiting falling during operation of the compressor is avoided.

This invention discloses a vibrating grassland organic fertilizer granule screening and application device, belonging to the field of organic fertilizer application technology. It includes a hopper fixedly connected to a fertilizer applicator, and further includes: a screening cylinder fixedly connected to the fertilizer applicator, with a detachable cover at the top; a drive rod rotatably connected to the cover, with a first stirring blade fixedly connected to its bottom; and a drive block slidably connected to the drive rod, with a connecting rod fixedly connected to its side wall, a hanging rod fixedly connected to the connecting rod, and a second stirring blade fixedly connected to its bottom end. This invention uses a first drive motor to drive the drive rod to rotate. The first stirring blade on the drive rod, and the second stirring blade that slides and rotates with the drive block work together to fully stir and beat the fertilizer in the screening cylinder, effectively breaking up compacted fertilizer clumps and preventing localized soil "burning" caused by concentrated fertilizer clumps during application, thus ensuring the normal growth of subsequent crops.

The invention discloses a memory structure and a forming method thereof, and the method comprises the steps: carrying out the doping processing of a substrate, and forming a word line doping layer in the substrate; doping the substrate on the word line doping layer or the epitaxial layer on the surface of the substrate to form a diode material layer on the word line doping layer; the substrate, the word line doping layer and the diode material layer are etched, a plurality of isolation openings are formed, and the isolation openings expose the substrate of the isolation region; and carrying out doping treatment on the substrate exposed out of the isolation opening, and forming an isolation doped region in the isolation region. When the substrate leaks electricity, the word line doping layer and the substrate of the isolation doping area form a reverse bias PN junction, the leakage current is cut off, and the problem of substrate electricity leakage is solved. Moreover, the depth of the isolation opening is relatively small, so that the process difficulty of etching the isolation opening is reduced; in addition, the memory structure can realize higher-density integration without large change, the number of the diode units controlled by the word line doping layer is increased, and the performance of the memory structure is improved.

The utility model relates to an atomizing mechanism and an atomizer, and relates to the technical field of electronic atomizers. According to the atomization mechanism, an atomization assembly is arranged in a liquid storage cavity and provided with an atomization chamber communicating with the liquid storage cavity, the atomization chamber is used for atomizing a liquid matrix entering the atomization chamber from the liquid storage cavity, and a first sealing piece is arranged at one end of the atomization assembly; the atomization assembly is partially arranged in the air outlet channel and the air inlet channel so that the atomization chamber can be communicated with the air outlet channel and the air inlet channel, the other end of the atomization assembly abuts against the assembling shell so that the first sealing piece can be limited to the preset position in the air outlet channel, and the first sealing piece is in sealing fit with the assembling shell and the atomization assembly at the preset position. The end, provided with the first sealing piece, of the atomization assembly is easily arranged at the preset position in the air outlet channel, sealing fit is achieved through the first sealing piece, the sealing effect is good, and the leakage problem is solved.

This invention discloses a wall-penetrating sealing structure for thermal insulation pipes and its installation method, relating to the field of wall-penetrating thermal insulation pipe technology. It includes a wall-penetrating installation component, on which a corrugated pipe compensation component is installed for pre-storing a compensation distance. A retaining ring connector is installed on the corrugated pipe compensation component for sealing the corrugated pipe compensation component. An outer receiving component and an inner receiving component are installed at the tail of the wall-penetrating installation component. By using an adjusting flange ring on the outer side of the corrugated protrusion on the compensating corrugated pipe, it is easier for workers to quickly inspect and repair the compensating corrugated pipe. When cracks appear in the compensating corrugated pipe due to long-term expansion and contraction, splicing and leak repair can be quickly performed. This solves the problems of current wall-penetrating sealing structures for thermal insulation pipes, such as inconvenience in pre-storing corrugated pipe expansion sections, low replacement efficiency, and short service life of the corrugated pipe.

The utility model discloses a kind of composite roller inner bag for ice blender evaporator, including inner bag body, outer tube, conveying part and sealing ring, the conveying part is set on the surface of the inner bag body and is spirally conveyed and releases refrigerant on the surface of the inner bag body, the outer tube is connected with the inner bag body, and the surface of the outer tube covers the surface of the inner bag body and forms accommodating cavity, the sealing ring is set at the joint of the outer tube and the inner bag body both;The inner bag body of the composite roller inner bag for ice blender evaporator is provided with conveying part and outer tube, conveying part can be spirally conveyed and releases refrigerant in accommodating cavity, increase the area of inner bag body heat exchange, and sealing ring is set at the joint of outer tube and inner bag body both, improve sealing property and avoid refrigerant easily leak, and then improve the refrigeration effect of inner bag body.

The utility model relates to the technical field of metal band sawing machines, and discloses a metal band sawing machine for cutting sheet metal workpieces, which comprises a base, a band sawing machine body fixedly mounted on the base, a fixing clamp fixedly mounted on the base, and a machining platform fixedly mounted on the base and positioned on the front side of the fixing clamp. Blanking openings are formed in the periphery of the machining platform, a discharging assembly is arranged on the rear side of the machining platform, a reciprocating assembly is arranged on the side face of the machining platform, and a cleaning brush located at the top of the machining platform is arranged on the reciprocating assembly. By arranging the discharging assembly and the transferring assembly, after a workpiece is cut, fixation of the workpiece by the fixing clamp is relieved, then the placing platform is pushed, and the placing platform drives the cut workpiece to move along the moving track through the moving seat; and when the inclined surface at the tail end of the rail is moved, the workpiece on the placing platform slides into the storage box to be placed and cooled.

The sand control pad provided by the utility model comprises a bottom box and a plurality of claw rollers, and the claw rollers are arranged on the bottom box. The pet sand control mat has the advantages that the claw rollers are arranged on the bottom box and can play a supporting role, meanwhile, a pet can improve interactivity with the sand control mat by playing the claw rollers, the sand control effect is improved, in addition, sand is located under the feet of the pet, the sand can be rapidly promoted to leak out from the feet by playing the claw rollers through the claws of the pet, and the pet is more convenient to use. Further, the liquid drops on the bottom box; by arranging the claw rollers made of sisal hemp materials, the entertainment of the pet on the sand control pad can be further improved, and the sand control effect is improved; the upper cover is arranged to be buckled on the bottom box, so that the claw roller can be limited between the upper cover and the bottom box, and jumping of the claw roller is prevented; all the parts are detachably connected and are convenient to mount, replace and replace, when part of the parts are damaged, the damaged parts can be replaced, and interchangeability is good; and the gap is formed in the joint of the upper cover or the bottom box, so that the cat litter can be conveniently poured.

The utility model discloses a connector dust cover, which relates to the technical field of automobile parts and comprises a connector, a positioning plate is fixedly arranged outside the top end of the connector, a joint is fixedly arranged at the top of the connector, a dust cover is movably arranged at the front end of the joint, and a fixing mechanism is arranged at the right end of the positioning plate. A hinge seat is fixedly arranged at the left end of the dustproof cover, a positioning mechanism is arranged on one side of the hinge seat, a rubber ring is fixedly arranged on the inner side of the dustproof cover, a through opening is formed in the fixing mechanism, an abutting block is fixedly arranged at the right end of the dustproof cover, and inserting grooves are formed in the upper end and the lower end of the abutting block. A hinge frame is fixedly arranged at the left end of the positioning plate, and a rotating shaft is rotationally installed on the inner side of the upper end of the hinge frame. According to the utility model, the dustproof cover is connected with the rotating shaft on the hinge frame through the hinge seat, so that the dustproof cover is installed on the connector, and the dustproof cover can be prevented from being lost after being detached.

The utility model discloses a culture test box can carry out acarid removal to edible fungus relates to edible fungus culture technical field, including box, be provided with the baffle in the box, be provided with culture tray on the baffle, be provided with a plurality of trapping platform in the culture tray, culture tray upside is provided with liquid medicine spraying subassembly, culture tray includes the tray body, be provided with a plurality of conical frustum shape holes in the tray body, be provided with the blocking plate of up and down removal below the tray body, the blocking plate with conical frustum shape hole block cooperation, the blocking plate is connected with drive mechanism, the water cooling temperature reduction subassembly is set up to the box outer wall, be provided with a plurality of ventilation components on the box side wall, the utility model discloses has designed the trapping platform, has placed the fried vegetable seed cake on the trapping platform to attract mite to make it expose under the liquid medicine shower head to avoid the problem of not thorough acarid removal due to mite hiding in the matrix or edible fungus.

The application discloses a compressor disc cavity cooling system which comprises a gas source, a compressor disc cavity and an ejector, a first branch and a second branch are connected to an outlet end of the gas source, the first branch is communicated with a first inlet of the ejector after passing through the compressor disc cavity, the second branch is communicated with a second inlet of the ejector, and the gas in the compressor disc cavity is sucked into the ejector through high-speed injection of the gas in the second inlet. In the compressor disc cavity cooling system, the exhaust end of the compressor disc cavity is communicated with the first inlet of the ejector, and the exhaust of the compressor disc cavity is assisted by the negative pressure generated by the high-speed jet flow, so that the gas supply and exhaust of the compressor disc cavity are simultaneously realized, the cooling effect of the compressor disc cavity is realized, and the leakage of the sealing position caused by the excessive internal pressure of the compressor disc cavity is avoided.

This invention provides a metal interconnect structure and its fabrication method. The fabrication method includes: forming a first dielectric layer with vias on a bottom metal layer; forming a first metal barrier layer on the first dielectric layer, the first metal barrier layer covering the top surface of the first dielectric layer and covering the sidewalls and bottom surface of the via; forming a first protective layer on the sidewalls of the via, the first protective layer covering the first metal barrier layer on the sidewalls of the via and covering the first metal barrier layer on the edge region of the bottom surface of the via; and under the cover of the first protective layer, etching away the first metal barrier layer on the top surface of the first dielectric layer and removing the area of ​​the first metal barrier layer on the bottom surface of the via not covered by the first protective layer. This avoids metal diffusion problems caused by via etching misalignment and protects the metal barrier layer on the sidewalls of the via. In the metal interconnect structure, the metal barrier layer covers the sidewalls of the via and extends to cover the edge region of the bottom surface of the via.

The present disclosure relates to memory devices, in particular, to memory devices with multiplexers for multiplexing write and read operations to bit lines. A write-read circuit of this disclosure comprises a multiplexer for multiplexing the write and read operations. The multiplexer comprises a plurality of select devices, each select device being associated with one of a plurality of bit lines, and each select device comprising a first transistor and a second transistor. The write-read circuit further comprises a controller configured to, for a write operation using a particular bit line, controlling the multiplexer to turn on both transistors of the first select device associated with the particular bit line, and for a read operation using the particular bit line, to control the multiplexer to turn on the first transistor and turn off the second transistor of the first select device associated with the particular bit line.

The application discloses a high-thermal-conductivity composite shaped phase change energy storage material, which comprises the following components in percentage by weight: a phase change material 75-85%, a porous framework material 10-15%, an interface compatibility agent 3-5% and a shaped reinforcing agent 5-8%. The application further discloses a preparation method of the high-thermal-conductivity composite shaped phase change energy storage material. The porous framework material is used as a pre-designed functional framework, the phase change material is used as a filler, the shaped reinforcing agent is used as a special sealing layer, and the interface compatibility agent is used for modifying and improving interface compatibility, so as to jointly form a layered and multifunctional integrated composite system. The design can realize synchronous optimization of multiple key performance indexes such as thermal conductivity, leakage prevention, heat storage and stability.

The utility model discloses a dust collector shell capable of preventing dust leakage, and relates to the technical field of dust collectors, the dust collector shell capable of preventing dust leakage comprises a main body shell, the end part of the main body shell is fixedly connected with a dust collection box, and the end part of the dust collection box is fixedly connected with a sealing cover; wherein the sealing cover comprises a hollow cover, a connecting pipe is integrally arranged on the side face of the hollow cover, an atomizing nozzle is fixedly connected to the upper portion of the connecting pipe, and a separator is fixedly connected to the end, away from the hollow cover, of the connecting pipe; according to the utility model, liquid in the water storage tank is fed into the atomizing spray head through the connecting water pipe by the small water pump, gas passing through the connecting pipe is atomized and sprayed, and dust in the gas is mixed with the liquid, so that the dust is quickly separated from the gas, and the dust is prevented from entering the negative pressure fan along with airflow; and dust can be prevented from being discharged along with airflow, and the dust leakage effect of the dust collector is improved.

This utility model belongs to the field of liquid-cooled energy storage technology and discloses a high-efficiency, high-pressure liquid-cooled energy storage device, including an energy storage body. A circulation pipe is connected to the surface of the energy storage body. A liquid cooling mechanism is provided on the upper surface of the energy storage body. A separation component is installed on the surface of the energy storage body. The separation component includes a connecting plate. The inlet end of the circulation pipe is equipped with the connecting plate. A telescopic pipe is installed on the surface of the liquid cooling mechanism. An installation plate is installed at the outlet end of the telescopic pipe. The circulation pipe is inserted into the interior of the installation plate. A rack plate is provided on the surface of the installation plate. The rack plate is inserted into a rack groove opened on the surface of the connecting plate. An auxiliary disassembly component is installed on the surface of the installation plate. This utility model has the advantages of being able to easily separate the coolant tank from the chamber, and facilitating the inspection or maintenance of coolant tanks with coolant leakage or internal scaling.

The utility model discloses an isolation device of water pollution prevention and control equipment, and belongs to the technical field of water pollution prevention and control equipment. The water pollution control equipment isolation device comprises a sewage pool, inclined frames are installed at one ends of the two sides of the interior of the sewage pool, a conveying mechanism used for discharging solids is arranged between the pair of inclined frames, a pair of flow guide plates is arranged at the top ends of the inclined frames, and one sides of the pair of flow guide plates are fixedly connected with the top ends of the two sides of the interior of the sewage pool correspondingly; the conveying mechanism comprises a conveying belt, a first belt roller and a second belt roller are arranged on the inner side of the conveying belt, the two ends of the first belt roller are rotationally connected with the top ends of the interiors of the pair of inclined frames correspondingly, and the two ends of the second belt roller are rotationally connected with the bottom ends of the interiors of the pair of inclined frames correspondingly; the device can effectively realize the function of quickly discharging solids, does not need to be fished by a worker, and has higher practical value.

This utility model relates to the field of compressor technology, and more particularly to a muffler sealing structure and a compressor. The muffler sealing structure includes a muffler, a cylinder head, a seal, and several mounting components. A step is protruding horizontally from the outer periphery of the cylinder head. The seal is placed on the step, and its end face has a groove. The edge of the muffler extends axially and is embedded in the groove. Several mounting components pass through the muffler and connect to the cylinder head. Compared to the prior art, this muffler sealing structure adds a step to the cylinder head and an additional seal between the muffler and the cylinder head to achieve axial sealing. Simultaneously, the groove embedded in the edge of the muffler achieves radial sealing through its clamping action. This makes the sealing method of the muffler sealing structure a radial + axial sealing method, enhancing the airtightness between the muffler and the cylinder head and preventing leakage at the connection between the muffler and the cylinder head.

The utility model discloses a fast installation T-shaped bar flowmeter which comprises a pipeline and a flowmeter body, a first clamping ring and a second clamping ring are buckled on the outer portion after two bosses are in butt joint, the first clamping ring and the second clamping ring are oppositely arranged, a tensioning assembly is installed on the first clamping ring, a tensioning rope is detachably installed on the second clamping ring, and the pipeline is connected with the flowmeter body. The tensioning rope wound on the tensioning assembly is tightened by adjusting the tensioning assembly, so that the first clamping ring and the second clamping ring are close to each other, the distance between the two bosses is adjusted, welding is not needed, the mounting or dismounting efficiency is obviously improved, whether a sensor and a pressure guide pipe are blocked or leaked or not can be checked regularly, and the sensor can be cleaned conveniently. Through cooperation of the first clamping ring, the second clamping ring, the tensioning rope and the tensioning assembly, connection is tight and not prone to loosing, the flow meter is suitable for being used for a flow meter needing frequent maintenance or replacement, meanwhile, the sealing gasket is a polytetrafluoroethylene gasket, the sealing performance is good, and the flow meter is suitable for being used for a gas or liquid process pipeline with the high temperature not exceeding 250 DEG C and the pressure not exceeding 1.6 Mpa.

The utility model relates to the technical field of chlorobenzene production, and particularly discloses a quantitative adding device for AABI closed-loop chlorobenzene production, which comprises a feeding box, a visual window is arranged on the front surface of the feeding box, scale marks are arranged on the front surface of the feeding box and are positioned on the left side of the visual window, a feeding hole is formed in the right side of the top of the feeding box, and a feeding hole is formed in the right side of the top of the feeding box. A discharging port is formed in the bottom of the feeding box, and a quantitative feeding assembly is arranged in an inner cavity of the feeding box and comprises a driving motor. When materials need to be fed into processing equipment, firstly, the driving motor operates, the gear is driven by the driving motor to rotate, the sliding rod is driven by matching of the gear and the tooth groove to move downwards, the sliding sleeve is matched with the sliding rod to stably move, the piston is driven by the sliding rod to move downwards, and the downward moving position of the piston can be observed through the visual window. The volume which can be added in the feeding box can be known through scale marks on one side of the visual window.

The utility model relates to the technical field of incubator, disclose mycorrhizal fungi plant symbiont incubator, including main support subassembly, first filter subassembly and second filter subassembly, the central place of main support subassembly upper end is provided with the sub support subassembly for placing mycorrhizal fungi plant symbiont, the heat preservation subassembly for the heat preservation of mycorrhizal fungi plant symbiont is set up to the upper end of sub support subassembly, the central edge place of main support subassembly upper end is provided with the placing subassembly for supporting sub support subassembly and heat preservation subassembly, drive mechanism is sealed open and close mechanism power supply, realize its automatic opening and closing, it is convenient to open or close the incubator quickly, conveniently when needing, first filter subassembly and second filter subassembly effectively filter the particle and pollutant in air, prevent fungi spore excretion, protect the culture environment from outside pollution simultaneously, the sub support subassembly is used for stably placing mycorrhizal fungi plant symbiont, ensure that it is not interfered by outside in the culture process.

The invention provides a converter shell pass hot water recovery system and method. A converter shell pass hot water recovery system comprises a converter, a hot water tank, a first valve, a second valve, a hot water recovery pipe, a hot water recovery tank, a hot water recovery pump, a hot water recovery pump outlet pipe and a third valve, the converter is connected with the hot water tank through a pipeline, and the first valve and the second valve are both connected with the converter. The hot water recovery tank is connected with the first valve through the hot water recovery pipe, the hot water recovery pump is connected with the hot water recovery tank through a pipeline, the hot water tank is connected with the hot water recovery pump through a hot water recovery pump outlet pipe, and the third valve is connected with the hot water recovery tank through a pipeline.