86results about How to "Meet supply needs" patented technology

The present invention provides a transdermal administration kit, wherein the transdermal administration kit comprises a microneedle array and a transdermal administration patch; the penetration depth of the microneedle array into the skin is about 20 to 150 um; the transdermal administration patch comprises a medicament holder and insulin as active medicament components; the medicament holder is made from inert substances capable of adsorbing and holding the adsorbed liquid. The transdermal administration kit provided by the invention enables the blood sugar value of a rat suffering from diabetes mellitus to be kept constant during a period of from 2 to 24 hours after the rat is administered the formulation. So the transdermal administration kit provided by the invention can replace the hypodermic injection of protamine zinc insulin and other similar ways to maintain the stabilization of the basic insulin level in the human body blood.

The invention relates to the fields of aerology, hydrology and ecology machinery, in particular providing a device for simulating vapour hydrogen and oxygen stable isotopes fluxes, wherein the device comprises a vapour sampling device, a vapour analysis device, a dry air manufacturing device and a balance vapour generator. The device can generate a vapour H2O concentration gradient and a vapour stable isotope H218O and HDO (semi-heavy water) concentration gradient according to requirements, so as to simulate the vapour delta 180 and delta D isotope fluxes. The device can be used for continuous or periodic performance evaluation or calibration of the atmospheric vapour delta 180 and delta D isotope ratio and fluxes.

The invention relates to the field of wood processing equipment and particularly discloses full-automatic wood cutting equipment comprising a rack, a platen, a cutting mechanism, a storage mechanism and a feed mechanism. The storage mechanism comprises a frame, a first adjusting plate and a second adjusting plate. Spaces are reserved between the platen and the bottom of the first adjusting plate as well as the bottom of the second adjusting plate. The frame is provided with a support mechanism, a push mechanism and an adjusting mechanism. The platen is provided with a lifting mechanism. The feed mechanism comprises a feed plate, a baffle, a slideway, a sliding groove, a feed assembly and a feed motor. The feed assembly comprises a sliding push block, an L-shaped push plate and a balance plate. The cutting mechanism comprises a guide rail, a driving cylinder, a movable support, a lifting cylinder, a movable seat, a cutting motor, a cutting saw web, a fixed cylinder, a fixed plate, an alignment cylinder, an alignment plate, an inductor and a locating block. The full-automatic wood cutting equipment has the characteristics that labor cost is low, cutting efficiency is high, the automation degree is high, raw wood is not inclined, and potential safety hazards are avoided.

The invention discloses even-stirring equipment which comprises an even-stirring part, an output part arranged at the bottom of the even-stirring part and a boss part arranged at the bottom of the output part. The boss part is of a hollow structure, a balancing weight is embedded in the inner bottom of the boss part, an accommodating cavity is arranged in the even-stirring part, multiple sets of bucket troughs are arranged in the bottom of the accommodating cavity, a port is arranged in the bottom of each bucket trough, a first sliding connecting groove penetrating the port and extending leftwards and rightwards is arranged in the port, a first sliding connection part is arranged in the first sliding connection groove, an output hole is arranged in the first sliding connection part, a first spiral thread hole is arranged in the left side of the first sliding connection part, a first spiral rod is connected in the first spiral thread hole in spiral thread fitness, the first spiral rod is connected with a first electrical rotating machine, multiple sets of collecting zones are evenly arranged on the outer surface of the front and rear sides of the output part, a connection slot matched with the bottom of each port is arranged in the output part, a first chamfer groove and a second chamfer groove are arranged on front and rear sides of the bottom of each connection slot, and the bottom tail of the first chamfer groove is communicated with the collecting part on the front side of the output part. The even-stirring equipment is simple in structure, reasonable in design, convenient in operation, capable of realizing automatic stirring and automatic discharging and transferring and even in stirring, stirring efficiency is improved, supply requirements are met, and use cost is low.

A controllable steam generation device comprises a mini-type water feed pump, a steam generation pipe, a heating device and a steam bearing device. The mini-type water feed pump is provided with silicone pipes of different specifications in a matched mode; one end of each silicone pipe is connected with a pure water storage tank; the other end of each silicone pipe is connected with the steam generation pipe; the steam generation pipe is a stainless steel coiled pipe; the heated part is arranged in the heating device, fed water is completely evaporated by being heated, and produced steam enters a mixing tank and is fed into a steam utilization device through the steam bearing device; a steam pipeline, a steam bearing pipeline and the mixing tank are respectively provided with a heat tracing device. The controllable steam generation device has the advantages of being convenient to install, easy to operate, controllable in flow and temperature and the like, meets the supply requirement of a trace of steam of laboratories, and solves the problem that online measurement of steam in mixed gas is difficult.

The invention discloses a method for manufacturing rice straw fermented feed. The method mainly includes steps of A, collecting rice straw and smashing the rice straw; B, activating lactic acid bacteria and cellulase; C, preparing bacterium enzyme molasses aqueous solution with the concentration of 2%; D, mixing the rice straw and traditional Chinese medicine residues with one another to obtain mixtures and spraying the bacterium enzyme molasses aqueous solution on the mixtures; E, bailing, wrapping, stocking and storing mixed straw. The method has the advantages that the method is simple and is low in manufacturing cost, the fermented feed manufactured by the aid of the method is easy to store and transport and high in commercialized degree, and matched forage grass and feed supply requirements for rapidly developing grass-feeding livestock can be met.

The invention discloses a bottle supply device used for sample collection and preparation. The bottle supply device comprises a bottle storage cabinet and a bottle fetching and conveying mechanism arranged below the bottle storage cabinet. A plurality of columns of bottle storage compartments arranged in parallel in the vertical direction are arranged in the bottle storage cabinet. A plurality of horizontal sample bottles are sequentially stored in each column of bottle storage compartment from bottom to top. A bottle outlet in the bottom end of each column of bottle storage compartment in the vertical direction is provided with a bottle blocking switching assembly used for preventing the sample bottles from falling down in a blocking mode. A bottle supply zone used for being matched with external transfer equipment is arranged at one end of the bottle fetching and conveying mechanism. The bottle fetching and conveying mechanism comprises a translation track and a translating and overturning manipulator which are transversely arranged below the bottle storage cabinet. When the translating and overturning manipulator translates to the lower ends of the bottle storage compartments, the translating and overturning manipulator is matched with the bottle blocking switching assemblies to fetch the sample bottles falling from the bottle outlets in a clamping mode and overturns after translating to the bottle supply zone, so that the sample bottles vertically fall onto the external transfer equipment for bottle supply conveying operation. The bottle supply device has the advantages of being simple and compact in structure, small in size, large in capacity, rapid and convenient in supply and high in operation efficiency and intelligent degree.

The application provides an information providing method and apparatus. The method may include the following steps: selecting a screening model that matches a current user's description information from pre-defined screening models that correspond to a plurality of information granularities; based on the selected screening model, determining information screening conditions that correspond to thecurrent user; and providing the information that conform with the information screening conditions to the current user. According to the technical solution of the application, the method herein can increase the accuracy in screening information so as to make information provided to users conform with users' needs and can help to increase users' information acquisition efficiency.

The invention discloses an electricity and water supplying device for an island. The electricity and water supplying device comprises a wind power generation part, an intelligent control part, a refrigerating cycle part, a storage battery and a water supplying part, wherein the intelligent control part controls the wind power generation part to convert the wind power into electric power through an internally arranged interface module, the electric power controls the refrigerating cycle part to condense, the water supplying part is used to get water, and the rest electricity is stored in the storage battery. The electricity and water supplying device disclosed by the invention saves a water pump, integrally solves the problems of water supply and electricity supply for the island, and has a higher benefit ratio.

The invention provides a remotely controllable centrifuge box for sand supplying. The centrifuge box includes a box body, a sand loading box, a sliding device, a sand guiding pipe, a funnel and a hydraulic power device. The sand loading box is located above the box body and the sliding device is located inside the box body. The hydraulic power device is located on the side face of the box body. The sand guiding pipe is located below the sand loading box. The sliding device comprises a first sliding part, a second sliding part, a third sliding part and a fixing part which are connected with oneanother in sequence. The fixing part is connected with the box body. The first sliding part can slide left and right along the second sliding part. The second sliding part can slide front and back along the third sliding part. The third sliding part can slide up and down along the fixing part. Sliding of the first sliding part, the second sliding part and the third sliding part is driven by the hydraulic power device. A funnel clamping ring is installed on the first sliding part. The funnel is placed in the funnel clamping ring. The remotely controllable centrifuge box is simple in operation,time saving and labor saving.

The invention relates to a device for removing heavy metals and polycyclic aromatic hydrocarbons in bottom sediment of river channels and a method thereof and belongs to the field of river-channel pollution treatment in environmental protection. The device comprises an electrolysis device, a biological fuel cell and a galvanometer, wherein the electrolysis device comprises a cathode area, a bottom-sediment area and an anode area; the negative electrode of the biological fuel cell is arranged at the outer side of a round drum, the positive electrode of the biological fuel cell is arranged at the inner side of the round drum, and a compost layer is arranged between the negative electrode and the positive electrode; a cathode rod is arranged in the cathode area, the top part of the cathode rod is electrically connected with the positive electrode, the negative electrode is connected with one end of the galvanometer, and the other end of the galvanometer is electrically connected with a positive rod; a substance exchange film is arranged between the anode area and the bottom-sediment area, a substance exchange film is also arranged between the bottom-sediment area and the cathode area, the top part of a cathode sampling area is provided with a cathode sampling port, the top part of a middle sampling area is provided with a middle sampling port, and the top part of an anode sampling area is provided with an anode sampling port. The device and the method have the advantages that the energy is saved and simultaneously the purpose of using wastes to treat wastes is achieved.

The invention relates to a simple wearable filtering positive-pressure ventilation device. The simple wearable filtering positive-pressure ventilation device is characterized in that the simple wearable filtering positive-pressure ventilation device mainly comprises a gas generating component, a filtering component, a positive pressure collecting component and a protective equipment interface component; the gas generating component comprises a shoe-shaped pedal type plastic air pump and a unidirectional air inlet / air outlet valve (hole); the filtering component comprises a 3M-level filtering fabric and an anti-deformation plastic negative pressure pipe; the positive pressure collecting component comprises a gas input valve (access hole), an elastic air bag, a filtering element, a positivepressure gas output element and a pressure sensitive element; the protective equipment interface component comprises a positive pressure output interface, and the positive pressure output interface can abut against a poison preventing mask, a protective head cover and a sealing protective garment; by means of the simple wearable filtering positive-pressure ventilation device, external air can be introduced into the air bag for storage through walking or stepping, and particulate matters and harmful gas in the air are blocked by the filtering element; three layers of dirt-preventing filtering fabrics are arranged in the air bag, the pressure of the air bag is kept by a pressure reducing valve, and the air bag is combined with protective equipment to supply breathing cleaning air.

The invention relates to the field of intelligent wood processing, and particularly discloses a fully-automatic wood cutting machine which comprises a frame, a table plate, a cutting mechanism, a storage mechanism and a conveying mechanism. The storage mechanism comprises a shelf, a first adjusting plate and a second adjusting plate, the bottom of the second adjusting plate is fitted with the table plate, a gap is reserved between the bottom of the first adjusting plate and the table plate, a supporting mechanism, a pushing mechanism and an adjusting mechanism are arranged on the shelf, a lifting mechanism is arranged on the table plate, the conveying mechanism comprises a conveying plate, a baffle plate, a sliding way, a sliding groove, a conveying component and a conveying motor, the conveying component comprises a slidable pushing block, an L-shaped pushing plate and a balance plate, and the cutting mechanism comprises a guide rail, a driving cylinder, a movable support, a movable seat, a cutting motor, a cutting saw blade, a fixed cylinder, a fixed plate, an alignment cylinder, an alignment plate, a sensor and a positioning block. The cutting machine has the advantages that thehuman cost is low, cutting efficiency and automation degree are high, an original wood material cannot be inclined, and potential safety hazards are avoided.

The invention relates to a seawater desalination system and a small nuclear power output device and a power output method thereof. The small nuclear power output device comprises a cooler, a first compressor, a first regenerator, a turbine and a nuclear reactor. The cooler includes a first cold-side passage for access of an external cold source and a first hot-side passage for heat exchange with the first cold-side passage. The first regenerator includes a second hot-side passage and a second cold-side passage for heat exchange with the second hot-side passage. An output end of the first hot-side passage, the first compressor, the second cold-side passage and an inlet end of the nuclear reactor are sequentially connected to form a closed heat absorption passage. An outlet end of the nuclear reactor, the turbine, the second hot-side passage and an input end of the first hot-side passage are sequentially connected to form a closed working passage. The small nuclear power output device can generate electricity for seaborne users to provide power so as to meet the supply of seaborne power.

The invention discloses an automatic service type conference table, andrelates to the field of official business handling. The automatic service type conference tableincludes a conference table body,a water supply system, a control system, a detection system and an on-screen display system. The water supply system includes a water supply module, a dedicated water cup, a watercup base and a waterdelivery pipe.The control system includes a beverage selection control system, a water supply module control system, a water storage module control system and a water cup base control system.The detection system includes a pressure sensor.The on-screen display system includes a touch displayscreen. The automatic service type conference table monitors theweight of the water cup in real time bythe pressure sensor on the water cup base, and the control system determineswhether or not there is aneed for water supplybased ondetection results. A user can selectcontinuous water supply by means of thetouch displayscreen on the dedicated water cup, select the type of beverage to be provided such as black tea, green tea, coffee and the like, and conduct voting and other activities.

The invention relates to a preparation method of wet noodles. The preparation method comprises the following steps of preparing a wet noodle agent: taking flour and the obtained wet noodle agent, mixing the flour and the obtained wet noodle agent to obtain a mixture, adding clean water, and stirring the mixture and the clean water so as to obtain dough; ageing the dough, dicing the aged dough, and putting the dough sheets into water for cooking so as to obtain cooked dough sheets; soaking the cooked dough sheets in cold water, fishing out the soaked dough sheets, soaking the fished dough sheets, and cutting the soaked dough sheets into strips so as to obtain noodles; taking out the soaked noodles, and leaving the taken noodles to stand for 2-3 hours; and performing ultraviolet light disinfection on the noodles after standing, and then performing sealing preservation on the noodles on which the ultraviolet light disinfection is performed so as to obtain the noodles. The fresh wet noodles prepared by the method disclosed by the invention are made in sterile environment, and each step is completed through a strict sterilization procedure, so that the clean and hygienic processing environment for the fresh wet noodles is guaranteed.

The invention aims to provide a gas inlet channel humidifying device for a supercharged diesel engine. The gas inlet channel humidifying device comprises a control water tank, a steam generator, a first turbine supercharger and a second turbine supercharger, wherein the steam generator is internally provided with a heating pipeline; waste gas enters a heating pipeline of the steam generator after passing through a first turbine; the heating pipeline is connected with a second turbine and the atmosphere respectively through a three-way solenoid valve; the second turbine is communicated with the atmosphere; the control water tank is connected with the steam generator and injects water into the steam generator; a venturi pipe is mounted on a gas inlet pipe between the first gas compressor and a diesel engine air cylinder; the water in the steam generator is heated by the waste gas in the heating pipeline to generate steam; the steam enters the venturi pipe after passing through a second gas compressor and then is sprayed into the gas inlet pipe. According to the gas inlet channel humidifying device for the supercharged diesel engine, the supercharged inlet gas and the supercharged water steam of the diesel engine are mixed in the gas inlet pipe so as to realize water doping and combustion; the utilization rate of resources is improved and the emission of NOX of the diesel engine can also be greatly reduced.

The invention discloses a cylinder sleeve cooling water system and method for a low-speed diesel engine for a dual-fuel ship. The cylinder sleeve cooling water system comprises a temperature control valve, a circulating pump, an electromagnetic valve, two check valves, a cylinder cover water outlet temperature sensor and a cylinder sleeve water outlet temperature sensor, wherein the cylinder coverwater outlet temperature sensor and the cylinder sleeve water outlet temperature sensor are used for monitoring the water outlet temperature of a cylinder cover and the water outlet temperature of acylinder sleeve in real time respectively, and transmitting the water outlet temperatures to the temperature control valve to realize automatic control and adjustment of the temperature of cooling water, so that a cooling water cavity of the cylinder sleeve can be kept at a proper temperature, cold corrosion of the cylinder sleeve is avoided, and the cooling water supply requirements of the low-speed diesel engine for the dual-fuel ship in two different operation modes, namely a fuel oil mode and a fuel gas mode, are met. According to the fuel oil mode and the fuel gas mode of a main engine, the temperature of the cooling water is automatically controlled and adjusted, so that a cooling cavity of a combustion chamber is automatically adjusted to be kept at a proper temperature, the problemof cold corrosion of the cylinder sleeve is solved, and the requirements of the dual-fuel main engine for the cooling water in the two different operation modes are met.

The invention discloses a preparation process and application of hericium erinaceus-ginseng zymocyte enzyme oral liquid. The preparation process comprises the following steps of: screening to obtain optimal hericium erinaceus, and enabling hericium erinaceus hyphae to cover the surface of a whole culture medium; taking a proper amount of hericium erinaceus solid culture, and transferring the hericium erinaceus solid culture into a liquid culture medium for culturing to obtain a liquid strain; finishing preparation of a ginseng drug matrix; finishing preparation of zymocyte; clarifying a zymocyte extract through a preset clarifying method to obtain oral liquid; and adding a flavoring agent into the oral liquid to adjust the taste of the oral liquid. The oral liquid has the beneficial effects that the oral liquid has the effects of hericium erinaceus and ginseng, is simple in preparation method, high in yield and low in cost, has a long-acting preservation value, and does not generate harmful byproducts.

The invention relates to the field of wood machining equipment, and in particular, discloses a storage device of a wood cutting machine. The storage device comprises a frame (1), a table plate (2) anda storage mechanism (4); the storage mechanism comprises a frame (401), a first adjusting plate (402) and a second adjusting plate (403); the bottom of the second adjusting plate is bonded with the table plate; a gap is formed between the bottom of the first adjusting plate and the table plate; the frame is provided with a support mechanism (404), a pushing mechanism (405) and an adjusting mechanism (406); a lifting mechanism (407) is arranged at the bottom of the table plate; a motion direction of the lifting mechanism is perpendicular to the table plate; and the first adjusting plate is positioned between the lifting mechanism and the end part of the frame. The storage device of the wood cutting machine has the characteristics of lower labor cost, higher conveying efficiency and higherautomation degree.

The invention discloses a method for regulating rhopilema esculentum kishinouye scyphistoma multi-crop strobilation, and belongs to the technical field of aquatic animal breeding. By controlling the water temperature at 15-19 DEG C and the feed amount, rhopilema esculentum kishinouye scyphistoma is subjected to repeated strobilation so that the total number of ephyrae released by the same amount of scyphistoma is increased by 2-5 times. The method can effectively increase the utilization rate of rhopilema esculentum kishinouye scyphistoma fry, that is, the number of the rhopilema esculentum kishinouye scyphistoma fry can be increased in a short period, the problem that the fry are out of season in a multi-crop breeding mode and accordingly the fry are insufficient in supply is also solved,the production cost is reduced, rhopilema esculentum kishinouye fry breeding efficiency and economic benefits of rhopilema esculentum kishinouye breeding are greatly improved, the control technologyis simple, and the method is suitable for wide popularization.

The invention discloses a rubber sealing material for electrical equipment and a preparation method thereof. The rubber sealing material comprises the following components in parts by mass: 50-100 parts of butyl rubber or modified butyl rubber, 0-50 parts of ethylene propylene diene monomer, 50-90 parts of carbon black, 1-20 parts of a plasticizer, 0.2-4 parts of magnesium oxide, 0.2-3 parts of stearic acid, 1-5 parts of zinc oxide, 0.5-2 parts of an accelerant, 0.5-1.5 parts of an anti-aging agent and 0.5-30 parts of acrylate modified carbon nanofibers. The preparation method comprises the following steps: mixing butyl rubber or modified butyl rubber with other compounding agents, thinning and vulcanizing. Butyl rubber or modified butyl rubber is used as the base material, acrylate modified carbon nanofibers are used as the heat-resistant filler, the prepared material has better heat-conducting property, physical and mechanical properties, wear resistance and chemical inertness and can be well compatible with SF6 gas, C3F7CN mixed gas and C5FK mixed gas and is suitable for an insulating gas switch cabinet of the SF6 gas, the C3F7CN mixed gas and the C5FK mixed gas.

The invention relates to a combustion cavity structure of an environment-friendly combustible waste heat recovery device. The combustion cavity structure comprises a combustion furnace shell, a combustion liner is arranged inside the combustion furnace shell, the upper end of the combustion liner is fixedly connected with the inner wall of the middle of the combustion furnace shell, a heat conduction cavity is formed between the combustion liner and the combustion furnace shell, and a plurality of metal heat conduction plates are longitudinally arranged in the heat conduction cavity. The plurality of metal heat conduction plates are arranged between the combustion liner and the combustion furnace shell in a circular shape, the two sides of the metal heat conduction plate are connected withthe combustion liner and the combustion furnace shell correspondingly, a second heat conduction pipe is coiled on the metal heat conduction plate, one end of the second heat conduction pipe penetrates through the side wall of the combustion furnace shell and is connected with a hot water receiving end, and the other end of the second heat conduction pipe extends upwards and penetrates through thecombustion liner and is connected with the first heat conduction pipe. The heating efficiency is high, the water temperature can reach higher temperature, and the requirement for high-temperature hotwater supply is met.

The invention provides an energy conservation freezer, and belongs to the field of food storage equipment. The energy conservation freezer comprises a water supply chamber, an air cooling chamber and a heat preservation chamber; the water supply chamber is filled with water and is internally provided with a condenser, a solar panel supplies power to the condenser, the water supply chamber is connected with a water storage tank through a water inlet pipe and a water outlet pipe, and the water storage tank is communicated with an external domestic water device; and the condenser conducts refrigeration on the air cooling chamber through an air cooling pipe and conducts heat preservation on the heat preservation chamber through a hot water pipe. According to the energy conservation freezer, solar energy is adopted for supplying power, and energy saving and environmental protection are achieved.

The invention discloses a new commodity retail intelligent sales management platform based on big data analysis and cloud computing. A method comprises the steps: carrying out the statistics of the historical purchase commodity information of each residence in a new commodity retail community platform, and extracting the purchase date and the purchase number of each daily supply in each residence; analyzing the predicted daily consumption of each daily supply in each residence in the community, calculating the monthly predicted total consumption of each daily supply in the community, and comparing and screening the supply and demand of each daily supply needing supply and demand in a new commodity retail community platform warehouse; recording the inventory of daily supplies needing to be supplied and demanded in warehouses of registered merchants in the new commodity retail community platform, calculating the supply and demand of the daily supplies needing to be supplied and demanded in the warehouses of the registered merchants in the new commodity retail community platform, and notifying the registered merchants to supply and demand the corresponding daily supplies to the warehouses of the new commodity retail community, so the optimized sales management of the new commodity retail sales management platform is realized.

The invention belongs to the technical field of engine fuel pumps, and particularly relates to a high-back-pressure large-flow ultra-high-speed turbine pump. The turbine pump is characterized in thata shell is fixedly connected with a turbine gas inlet cover, a hollow cavity formed by the shell and the turbine gas inlet cover is a turbine cavity, a turbine rotor is installed in the turbine cavity, a shaft of the turbine rotor is integrally assembled with the shell through angular contact bearing supports located at two ends of the inner part of the shell, and the turbine rotor can freely rotate in the turbine cavity at a high speed; and the other end of the shaft of the turbine rotor is connected with a pump impeller, the pump impeller is wrapped by a multi-oil-outlet pump head, and the multi-oil-outlet pump head is fixedly arranged on the shell. According to the turbine pump, the common limits of small-flow pump oil output and low-back-pressure gas exhaust of the ultra-high-speed turbine pump are broken through, and the fuel supply requirement of a scramjet engine can be met.

The invention discloses a material stripping structure comprising a carrying table which is used for placing raw material, a front clamp which is arranged at one side of the carrying table and used for clamping the raw material, a rear clamp which is arranged at the other side of the carrying table and used for clamping the raw material, a front material pulling module group which is used for driving the front clamp to upwardly and downwardly move, a rear material pulling module group which is used for driving the rear clamp to move along the length direction of the carrying table, and a material receiving platform which is arranged at one side, which is away from the carrying table, of the front clamp. The material stripping process is full-automatically completed without external contactor hard impact so that rapid material stripping can be guaranteed without damaging the FPC, and the requirement for raw material supply in production can be effectively met. The invention also discloses an automatic material loading machine comprising the material stripping structure and also comprising a material sucking module group and a control system which is used for controlling the material sucking module group. The material sucking module group comprises a material loading sucker which is used for sucking the material from the material receiving platform and a material loading drivingdevice which is used for driving the material loading sucker.

The invention belongs to the technical field of mechanical engineering, and particularly relates to a domestic hot water supply device for a factory and an operation method. The domestic hot water supply device comprises a container, a heat charging device and a water homogenizing device; the container is provided with a steam pipe, a steam inlet pipe, a water inlet pipe, a water outlet pipe and a tap water pipe; the steam pipe is connected with the steam inlet pipe, the steam inlet pipe is connected with the heat charging device, and the steam pipe is provided with a first cut-off control valve; one end of the water outlet pipe is connected with the bottom of the container, the other end of the water outlet pipe is connected with a water tank, and the water tank is connected with a tail end water using unit; the water outlet pipe is provided with a second cut-off control valve; the water inlet pipe is connected with the water homogenizing device and enables steam condensation water to be conveyed to the water homogenizing device, and the tap water pipe is connected with the water inlet pipe and provided with a third cut-off control valve; and the container is provided with a temperature controller for controlling the water temperature in the container. By means of the domestic hot water supply device, the steam condensation water can be effectively used, tap water can be heated through steam when supplying of the condensation water is insufficient, two methods are combined, and the domestic hot water supply device saves energy and is convenient.

The invention discloses a device for automatically conveying reserved bottom threads and an embroidering machine. The device comprises a conveyor belt, a transmission belt wheel box for driving the conveyor belt to be operated and a conveying driving motor for inputting power into the transmission belt wheel box, wherein the conveyor belt is connected with a plurality of bottom thread seat mounting plates; the bottom thread seat mounting plates are provided with at least two bottom thread seats for placing the bottom threads along a movement direction of the conveyor belt. After the bottom threads are used up, the conveying driving motor is started and the transmission belt wheel box drives the conveyor belt to be operated; the bottom thread seat mounting plates are moved for a certain distance along the conveyor belt and the reserved bottom threads are placed at a grasping position of an automatic bottom thread grasping device to be replaced; the plurality of reserved bottom threads can be placed on the bottom thread seat mounting plates in one step so that the bottom threads can be prevented from being frequently replaced.