32results about How to "Stable insulation" patented technology

The invention belongs to the field of building materials and aims to provide a method for using an inorganic dry powder heat-insulating coating. The method includes the following steps: (1) Weighing the inorganic dry powder thermal insulation coating and tap water respectively according to the ratio of 1:0.4 to 1:2; (2) adding water to the inorganic dry powder thermal insulation coating in batches in 2 to 3 times, and stirring for 3 to 3 times. 15 minutes to a uniform slurry coating; (3) coating the slurry coating to the building surface with a thickness of 0.1 to 1.8mm; the inorganic dry powder heat insulation coating includes the following components by weight: including The following components in parts by weight: 10-30 parts of white cement, 2-5 parts of redispersible rubber powder, 15-40 parts of filler, 5-12 parts of heat-reflecting pigment, 0-10 parts of hollow microspheres, auxiliary 1.5 to 5 parts of the agent. The inorganic dry powder thermal insulation paint of the present invention uses white cement as a film-forming substance, can resist degradation caused by external factors, and has good thermal insulation effect and excellent stain resistance. The thermal insulation performance is stable and can be maintained for a long time. It is especially suitable for residential buildings, commercial buildings, industrial plants and other occasions, and has broad application prospects.

The invention discloses a 3D printer nozzle structure, and belongs to the 3D printing technology field. The nozzle comprises a vertically-arranged nozzle body, and a heating sleeve, which is sleeved on the nozzle body, wherein the lower end of the nozzle body stretches out of the heating sleeve. The external surface of the nozzle body and the internal surface of the heating sleeve are both provided with screw threads, and the screw threads cooperate with each other. The top surface of the heating sleeve is provided with heating blind holes which are evenly distributed in the circumferential direction, and a heating element is arranged in each heating blind hole. The external round cover of the heating sleeve is provided with a box, and the internal wall of the box is provided with a thermal insulation layer. The nozzle body is provided with a material hole, and the material hole is composed of an upper reverse-conical hole, a middle cylindrical hole, and a lower normal-conical hole. The lower end of the nozzle body is provided with an extrusion hole that is communicated with the normal-conical hole. Through the provided technical scheme, the heat can be more conveniently transported to the nozzle body, the heat transmission is uniform, and the heating and thermal insulation are stable.

The invention provides a corrosion-resisting and thermal-insulating waterborne metal coating and a preparation method thereof. The coating comprises raw materials in parts by weight as follows: 30-50parts of silicon-styrene emulsion, 10-20 parts of active xonotlite slurry, 6-9 parts of hollow glass beads, 3-6 parts of titanium dioxide, 0.2-0.5 parts of a dispersing agent, 0.1-0.3 parts of a wetting agent, 0.1-0.3 parts of a defoamer, 2-4 parts of a coalescing agent, 0.2-0.5 parts of a thickener, 0.1-0.3 parts of a mildew preventive, 1-3 parts of an antifreezing agent and 20-30 parts of deionized water. The invention further provides the preparation method of the coating. The corrosion-resisting and thermal-insulating waterborne metal coating not only has good low-temperature stability andresistance to water, acid, alkali and neutral salt mist, but also has the advantages of good coating temperature alternating resistance, reflectivity, thermal insulation, decorative performance, corrosion resistance and the like.

The preparation method of water-repellent foamed concrete includes the following steps: (1) preparing foaming agent; (2) preparing water-repelling agent; (3) preparing water-repelling foaming agent; (4) placing the water-repellent foaming agent and 10 times water in weight into a whipping machine and whipping for 10 min.-20 min.; (5). adding cement and water according to the weight rati oof 1:0.4in the blade stirring machine and stirring them to obtain cement slurry; and (6). then adding whipped water-repellent foaming agent to the cement slurry, continuously stirring for 8-15 min to obtain the foamed concrete slurry material which can be used as covering layer of pipe or heat-insulating layer of roof, which has the advantages of low water-absorbing rate, light weight and good heat-insulating and sound-insulating effect, etc.

The invention discloses a method for endowing a Ni-enriched TiNi shape memory alloy with a two-way shape memory characteristic. The method comprises the following steps: applying high-energy electrical stimulation to a constrained cold-formed TiNi shape memory alloy, coupling a Joule heating effect caused in a low temperature range of 150-250 DEG C with the electron wind effect, promoting the internal defects (such as dislocation) of the alloy to be in directional arrangement along a constraint stress direction, enabling a martensite variant to be in orientated growth, then 'memorizing' the cold forming state as a high temperature shape, 'memorizing' a high-temperature aging state as a low temperature shape, matching a mechanical training method to form the electrical stimulation-mechanical training method, and endowing the Ni-enriched TiNi shape memory alloy with the 'thermal expansion and cold contraction' type two-way shape memory characteristic. According to the method, the high-energy electrical stimulation and martensitic phase transition alternative cycle period duration can be greatly shortened, the production efficiency is improved, and the energy consumption is reduced.

The invention provides a nano-titania and styrene-acrylic emulsion composite thermal insulation coating. The composite thermal insulation coating comprises raw materials in parts by weight as follows:50-60 parts of styrene-acrylic emulsion, 10-20 parts of active xonotlite slurry, 5-8 parts of hollow glass beads, 3-5 parts of nano-titania, 5-10 parts of diatomite, 8-12 parts of titanium dioxide, 8-12 parts of heat reflection thermal insulation powder, 3-6 parts of mica powder, 3-6 parts of alumina powder, 0.5-0.8 parts of a mildew preventive, 0.4-0.8 parts of a wetting agent, 0.9-1.5 parts ofa dispersing agent, 0.1-0.3 parts of a humectant, 0.3-0.8 parts of a defoamer, 1.0-2.5 parts of a coalescing agent, 0.5-0.8 parts of a thickener, 1-3 parts of a leveling agent and 20-50 parts of deionized water.

The invention discloses a nozzle structure for 3D printing, and belongs to the technical filed of 3D printing. The nozzle comprises an installation seat, a vertically-arranged nozzle body, and a heating sleeve, which is sleeved on the nozzle body, wherein the nozzle body stretches out the heating sleeve. The external surface of the nozzle body and the internal surface of the heating sleeve are both provided with threads, wherein the threads are matched. The top surface of the heating sleeve is provided with heating blind holes, which are evenly distributed in the circumferential direction, a heating element is arranged in each heating blind hole; the external round surface of the heating sleeve is covered by a box, and the internal wall of the box is provided with a thermal insulation layer. The nozzle body and the box are both arranged under the installation seat and are detachably connected to the installation seat; and two sides of the installation seat are both provided with an illumination lamp. In the provided nozzle structure, the heat can be more easily conveyed to the nozzle body, the heat transmission is even, no extra thermal insulation structure is required, the heating and thermal insulation are stable, and the appearance is beautiful.

The invention mainly provides an assembled pre-fabricated AB-surface multifunctional wall body, which consists of two parts, i.e. an outside wall body A surface and an inside wall body B surface, wherein the outside wall body A surface is made from an ordinary concrete material, and the inside wall body B surface is made from a foamed heat-preservation material; reinforcement meshes are arranged in the outside wall body A surface and the inside wall body B surface, and are connected through a reinforcement truss. The outside wall body A surface is an outer wall body, the inside wall body B surface is an inner wall body, parts such as doors and windows can be pre-fabricated by the wall body, and equipment such as a pipeline and an electric part is pre-buried in the wall body. Compared with a conventional prefabricated wall body and a sandwich wall body launched in recent years, the wall body has the advantages of better overall structure, higher heat-preservation performance, lighter product weight, much convenience of a manufacturing process and lower product construction cost.

The invention relates to a heat-insulation cold-preservation insulation board for a low-temperature storage tank and an installation method of the insulation board. The insulation board comprises a high-temperature layer plate (1), an upper intermediate layer plate (2), a lower intermediate layer plate (3) and a low-temperature layer plate (4) which are sequentially arranged in layers, a stainlesssteel mesh (5) is arranged between the high-temperature layer plate (1) and the upper intermediate layer plate (2), a grid cloth (6) is arranged between the upper intermediate layer plate (2) and thelower intermediate layer plate (3), a gap for filling polyurethane is reserved between the lower intermediate layer plate (3) and the low-temperature layer plate (4), a protective skin (7) is arranged on the outer side surface of the high-temperature layer plate (1), and elastic thermal insulation materials (8) are arranged on two adjacent side surfaces of the upper intermediate layer plate (2),the lower intermediate layer plate (3) and the low-temperature layer plate (4). Compared with the prior art, the heat-insulation cold-preservation insulation board has the advantages of being excellent in heat preservation performance, wide in application range, easy and convenient to install, long in service life, excellent in installation environment and excellent in shape design.

The invention discloses a modified glass fiber winding wire and a reinforced composite material prepared from the modified glass fiber winding wire, and relates to the technical field of glass fiber reinforced materials. The method is used for solving the technical problems that the heat insulation and compression resistance of the glass fiber winding wires cannot be improved in a continuous treatment mode, and the glass fiber winding wires, thermoplastic resin and auxiliaries are subjected to extrusion injection molding to obtain the composite material with excellent strength, heat insulation and corrosion resistance. According to the modified glass fiber winding wire, the dispersity and interface bonding force of glass fiber yarn are improved through chemical bond grafting; the chemical modifier changes the surface structure of the glass fiber yarn, a rough surface layer structure is formed on the surface of the glass fiber yarn, and hot pressing is performed during heat setting to fully dehumidify and improve the tensile property. According to the reinforced composite material, the moisture-proof heat-preservation middle layer material and the reinforced heat-resisting outer layer material are sequentially coated on the periphery of the reinforced insulation inner layer, and a reinforced composite material finished product with excellent strength, heat insulation and corrosion resistance is obtained through traction and winding.

The invention discloses a cultivating method of sweet potato leaves for a vegetable purpose. The method comprises the specific steps of seedling treatment (low-temperature treatment firstly and then immersion disinfection), seedling culturing (adding a small arch device to adjust the temperature), planting, transplanting, insulation treatment (adopting a technology of sleeving an inner greenhouse with an intermediate greenhouse and sleeving the intermediate greenhouse with an outer greenhouse) and harvesting. According to the cultivating method of the sweet potato leaves for the vegetable purpose, earlier stage processing of seedlings can ensure the quality of sweet potato stalks, and facilitates the subsequent development of the sweet potato stalks; the small arch design is added in the seedling culturing step, which facilitates the control over the temperature change in a hole disk and shortens the seedling culturing time; during the insulation treatment, the technology of sleeving the inner greenhouse with the intermediate greenhouse and sleeving the intermediate greenhouse with the outer greenhouse, which effectively improves the temperature in the greenhouses and can stably keep warm, and improves the growth and quality of the sweet potato stalks; meanwhile seedling culturing can be started from October, thus anti-season cultivating is achieved, 7-9 continuous batches can be harvested, and the economic benefit is greatly improved.

The invention provides a faceplate structure and a floor air conditioner, and relates to the technical field of air conditioners. The faceplate structure comprises a faceplate and a reinforcing plate.The faceplate comprises a faceplate main body, an installation portion and a first limit part, an air outlet is formed in the faceplate main body, the installation portion is arranged on one side ofthe air outlet, the first limit part is arranged at the end of the installation portion in a protruding manner so that the reinforcing plate can be attached to the installation portion, and the extension direction of the reinforcing plate is the same as that of the installation portion. Multiple thermal insulation cavities are formed in the reinforcing plate, openings of multiple thermal insulation cavities are formed in the two ends of the extension plate of the reinforcing plate, and the first limit part is located at one end of the reinforcing plate. The floor air conditioner adopts the faceplate structure. The faceplate structure and the floor air conditioner can improve the situation of condensation occurring to the faceplate, and the use stability of the faceplate structure is guaranteed.

The invention provides dry-mixed thermal insulation mortar which is prepared from the following raw materials in parts by weight: 9-18 parts of continuously graded aerogel composite particles, 1-2 parts of an inorganic cementing material and 0.05-0.1 part of compound latex powder. The dry-mixed thermal insulation mortar provided by the invention is based on aerogel particles as a thermal insulation functional filler. The continuously graded aerogel composite particles are obtained by coarse crushing, grading and model selection of blocky aerogel. The aerogel particles are used as the only thermal insulation filler of the dry-mixed thermal insulation mortar, the volume ratio is up to 60-95%, the stacking density of the dry-mixed thermal insulation mortar is 140-300g / L, the dry density of the mortar after molding is 180-350g / L, the normal-temperature heat conductivity coefficient is 0.04-0.06 W / (m.K), and A-grade fire prevention is realized.

The invention discloses a 3D printer nozzle, and belongs to the technical field of 3D printing. The nozzle comprises a vertically-arranged nozzle body, and a heating sleeve, which is sleeved on the nozzle body, wherein the nozzle body stretches out the heating sleeve. The external surface of the nozzle body and the internal surface of the heating sleeve are both provided with threads, wherein the threads are matched. The top surface of the heating sleeve is provided with heating blind holes, which are evenly distributed in the circumferential direction, a heating element is arranged in each heating blind hole; the external round surface of the heating sleeve is covered by a box, and the internal wall of the box is provided with a thermal insulation layer. In the provided 3D printer nozzle, the heat can be more easily conveyed to the nozzle body, the heat transmission is even, no extra thermal insulation structure is required, the heating and thermal insulation are stable, and the appearance is beautiful.

The invention relates to a plate for building and application thereof. The problems that a fabricated plate is low in production and machining efficiency and the edges of the plate are prone to beingdamaged are solved. According to the technical scheme, side edge-covering light-steel keels are separately arranged on both sides of a surface layer, and a stepped structure is formed by the two sidesof the corresponding surface layer and folded edges of the corresponding side edge-covering light-steel keels. The plate for the building and the application thereof has the beneficial effects that aframe structure is formed by the surface layer of the plate and the side edge-covering light-steel keels, the effect of independent mold is achieved, The filled core layer (a light-weight foamed thermal insulation sound insulation material) can be solidified in a core layer cavity of the mold by self, other solidifying equipment are not required for solidifying, the demoulding process does not exists, so that machining equipment is reduced, the occupied space of the equipment is reduced, the machining process is reduced, and the output is greatly increased; and the stepped structure is convenient for the application of the connecting plate, a splicing joint is prevented from cracking, and the occurrence of cold and hot bridges is reduced.

The invention relates to a living cell culture environment control system for a microscope. The control system comprises a host computer, a controller, an incubator and an integrated actuator, wherein the host computer can be used for setting temperature and CO2 concentration; the temperature can be separately set and controlled point by point; the incubator has a laminar flow air supply structure of which the upper layer and the lower layer independently work; a top plate of the incubator is arranged above a microscope stage and below a collecting lens turntable, and can be opened and closed towards two sides; the controller comprises a multi-point temperature controller and a CO2 concentration controller; temperature detecting probes are respectively arranged above and below the microscope stage and on a left bottom plate and a right bottom plate of the incubator; in combination with the CO2 concentration above the microscope stage, the temperature is controlled at the lower layer and the temperature and the CO2 concentration can be simultaneously controlled at the upper layer. The integrated actuator is of an integral structure with heating, humidifying and CO2 mixing functions. The living cell culture environment control system is simple in mechanism, easy to operate, and small in size, can be quickly disassembled and assembled, and has good control accuracy, and the function of the high-performance microscope is given a full play.

The invention provides a coating material, and relates to the field of architectural coating materials. The coating material comprises: a base spacer for sealing a coating material and a base liquid material, wherein the coating material is prepared from the following raw materials in parts by weight: 20 to 29 parts of polymethyl methacrylate powder, 15 to 22.5 parts of ceramic closed-cell microbeads, 2 to 5 parts of an infrared reflecting agent, 8 to 15 parts of acrylic acid nano microemulsion, 1 to 5 parts of a pigment, 0.3 to 1.5 parts of a thickening agent, 0.7 to 2 parts of an aid and 1 part of light magnesium oxide powder, and the base liquid material is prepared from the following raw materials in parts by weight: 6 to 10 parts of titanium dioxide powder, 1 to 6 parts of aerogel particles and 5 to 10 parts of acrylate adhesive emulsion. According to the invention, the heat insulation coating material is convenient to construct, free of pollution, good in cracking resistance, excellent in long-term comprehensive protection performance, remarkable in energy-saving effect, good in durability, low in cost and suitable for heat insulation of various house buildings.

The invention discloses a retracting and releasing device for a mooring unmanned aerial vehicle. The retracting and releasing device includes a trailer, wherein a generator, a power box and a rotatingshaft box are arranged on the trailer; the trailer is provided with a cabin used for storing the mooring unmanned aerial vehicle and matched with the mooring unmanned aerial vehicle; the cabin comprises a bottom plate, a cabin body arranged on the bottom plate and a baffle capable of opening and closing the cabin body; the cabin body is connected with the bottom plate in a sliding mode; the baffle is hinged to the bottom plate; the power mechanism is arranged on the bottom plate and can drive the cabin body to slide relative to the bottom plate; and a bearing platform which is proper in height and free of potential safety hazards is provided for the mooring unmanned aerial vehicle, and maintenance personnel can stand on the ground to maintain the mooring unmanned aerial vehicle. The retracting and releasing device provides a bearing platform with suitable height and without safety loopholes for the mooring unmanned aerial vehicle, and maintenance personnel can stand on the ground to maintain the mooring unmanned aerial vehicle. The mooring unmanned aerial vehicle is simple in structure, and blades do not need to be disassembled and assembled when the mooring unmanned aerial vehicle takes off or retracts, so that the preparation time is short; and the mooring unmanned aerial vehicle can be dragged to a place where the mooring unmanned aerial vehicle needs to work along with thetrailer and can fly synchronously along with the trailer in the flying process, so that universality is greatly improved.

The invention discloses a differential temperature heat treatment method of a minor-diameter high chromium cast-iron roll, which comprises the steps of roll neck bush welding, heat pretreatment, differential heating, precooling treatment, quenching & cooling, tempering treatment, roll neck bush removal and the like for the minor-diameter roll to achieve differential temperature heat treatment production of the minor-diameter roll. The method is simple and reasonable in technology; the roll is equipped with a roll neck bush, and an air-fuel ratio of a differential temperature furnace burner is adjusted, so that the heating capacity of a furnace is adaptive to the minor-diameter roll; the furnace temperature fluctuation range is greatly reduced; the heating and heat preservation stability is improved; and the heat treatment quality of the minor-diameter roll is improved.

The invention relates to a living cell culture environment control system for a microscope. The control system comprises a host computer, a controller, an incubator and an integrated actuator, wherein the host computer can be used for setting temperature and CO2 concentration; the temperature can be separately set and controlled point by point; the incubator has a laminar flow air supply structure of which the upper layer and the lower layer independently work; a top plate of the incubator is arranged above a microscope stage and below a collecting lens turntable, and can be opened and closed towards two sides; the controller comprises a multi-point temperature controller and a CO2 concentration controller; temperature detecting probes are respectively arranged above and below the microscope stage and on a left bottom plate and a right bottom plate of the incubator; in combination with the CO2 concentration above the microscope stage, the temperature is controlled at the lower layer and the temperature and the CO2 concentration can be simultaneously controlled at the upper layer. The integrated actuator is of an integral structure with heating, humidifying and CO2 mixing functions. The living cell culture environment control system is simple in mechanism, easy to operate, and small in size, can be quickly disassembled and assembled, and has good control accuracy, and the function of the high-performance microscope is given a full play.

The invention provides a dry granulation slag storage flow control device and a slag storage flow control method. The dry granulation slag storage flow control device comprises a molten slag conveying device, a slag storage heat preservation device and a flow control device, wherein the slag storage heat preservation device comprises a slag storage main body; a slag inlet connected with the discharging end of the molten slag conveying device is formed in the upper portion of the side wall of the slag storage main body, a slag outlet is formed in the lower portion of the side wall of the slag storage main body, and a molten slag flow regulation and control structure is arranged at the slag outlet; an electric heating electrode is arranged in the slag storage main body; the flow control device comprises a tank body; a slag inlet is formed in the side wall of the tank body; a water opening is formed in the bottom of the tank body; a radar charge level indicator is arranged above the tank body; and a weighing liquid level meter is arranged at the bottom of the tank body. According to the device and the method, the problems that at present, due to heat loss in the storage and transportation process and the fact that follow-up heat compensation is difficult, the temperature of the molten slag is too low, the fluidity becomes poor, granulation treatment cannot be conducted and the like can be solved; and the flow of slag entering the next procedure can be well controlled.

The invention provides a casting wax pattern raw material mixing device which comprises an upper support frame, wherein a wax crumb supply device is arranged on the upper support frame; a mixing device is arranged right under an outlet pipe of the wax crumb supply device; the wax crumb supply device comprises a transmission motor, an operation box, a support plate and a push cylinder, wherein the transmission motor is connected and fixed with a rotary table, a plurality of blades are sequentially arranged on the rotary table, and a cylinder shaft of the push cylinder is connected and fixed with a push plate; a rotary barrel is arranged in an outlet pipe of the operation box; the mixing device comprises a support body and a wax stirring barrel, two ends of the wax stirring barrel are fixed on the support frame, a thermal insulation and heating mechanism and a stirring container are sequentially arranged in the wax stirring barrel, a thermal insulation cover is arranged on the wax stirring barrel, a stirring shaft is arranged in the stirring container, and an end part is connected and fixed with a hybrid motor. The casting wax pattern raw material mixing device is totally closed, a stirred paste pattern material is fine and uniform, and the wax pattern strength is improved.

The invention discloses a use-facilitating heat tracing tape, which comprises multiple sub heat tracing tapes, wherein each sub heat tracing tape comprises a body; a first clamping fitting piece is arranged at one end of the body; a first clamping connection piece matched with the first clamping fitting piece is arranged at the other end of the body; the body comprises a core part and a heating wire layer, a heat preservation layer, a shielding layer and a sheath layer which cover the core part in sequence; the core part comprises a heat isolation pipe, multiple wire cores and multiple pipelines; the multiple wire cores surround the periphery of the heat isolation pipe; the multiple pipelines surround the periphery of the heat isolation pipe and are located on the outer sides of the multiple wire cores. The use-facilitating heat tracing tape is convenient to use and good in heat tracing effect.

The invention provides a mixing device for wax mold raw materials for casting, which includes an upper support frame, and a wax chip feeding device is provided on the upper support frame, wherein the outlet pipe of the wax chip feeding device is provided with Mixing device, the wax chip feeding device includes a transmission motor, an operation box, a support plate and a pusher cylinder, wherein the transmission motor is connected and fixed to a turntable, wherein several blades are arranged on the turntable in sequence, and the pusher The cylinder shaft of the cylinder is connected and fixed with the push plate; the discharge pipe of the operation box is provided with a rotating cylinder; the mixing device includes a support body and a wax stirring cylinder, and the two ends of the wax stirring cylinder are fixed on the support body Above, the wax stirring cylinder is provided with a thermal insulation heating mechanism and a stirring tank in turn, the wax stirring cylinder is provided with a heat preservation cover, the stirring shaft is located in the stirring tank and the end is connected and fixed with the mixing motor. The invention adopts a fully enclosed type, and the pasty mold material after stirring is fine and uniform, thereby improving the strength of the wax mold.

The invention discloses circulating extraction equipment for traditional Chinese medicine ointment preparation, and relates to the technical field of traditional Chinese medicine ointment preparation, in particular to circulating extraction equipment for traditional Chinese medicine ointment preparation, which comprises a shell and a dust suction pipe, the outer side of the shell is connected with a rotating rod, and the end part of one side of the rotating rod is connected with a sliding block; a sliding groove is connected to the outer surface of the sliding block, a supporting frame is fixed to the outer surface of the sliding groove, a dust suction shell is installed at the top of the supporting plate, an air exhauster is arranged at the top of the dust suction shell, a material receiving box is arranged in the dust suction shell, and a discharging sliding block is fixed to the bottom of the material receiving box; the outer surface of the discharging sliding block is connected with a discharging sliding groove, and the dust suction pipe is located on one side of the dust suction shell. According to the invention, the viscosity, the pH value, the polarity and the surface of the traditional Chinese medicine are accurately regulated and controlled in the traditional Chinese medicine extraction process, the yield of the active ingredients is increased by regulating and controlling the factors, and the stability of the active ingredients is guaranteed.

The invention relates to the technical field of medical appliances, in particular to a portable medicament storage device. An energy-accumulating inner container is arranged in a device body; one end of the device body is sealed, and a cover body is arranged at the other end of the device body; a thermometer is arranged in the cover body; the device body comprises an inner container sealing gasket and a sealing ring; the sealing ring is arranged at one end of the device body; the inner container sealing gasket is arranged at the bottom inside the device body. By adopting the structural design, medicaments with temperature requirements can be stored for a long time with a good effect. A portable passive heat-preserving device is researched and developed independently by using the principles of phase change cold accumulation and controlled-release heat preservation, does not need any power supply, and is long in heat-preserving time, being up to 24-90 hours. The temperatures of medicaments are clear at a glance by providing a temperature display. A safe and convenient method for storing and carrying insulin is provided for diabetics using insulin. The portable passive insulin heat-preserving device is convenient to carry and easy to clean, and has the advantages of sanitation, nontoxicity, safety, environmental friendliness and the like.