681 results about "Hot weather" patented technology

A cooling garment for dogs to aid in the prevention of heatstroke during hot weather walks. The cooling garment containing a bladder for water, whereby, the cooling garment may be easily stored and frozen in the freezer prior to use. The underside of the cooling garment containing a means to adhere to the dog's coat so the cooling garment stays situated on the back and sides of the dog during warm weather walks and exercise. A sun reflective surface may, additionally, be utilized to further aid in cooling the animal.

The invention relates to a life-cycle water-free cooling solution which is characterized by comprising the following components in percent by weight: 10-50 percent of propylene glycol, 50-80 percent of ethylene glycol, 0.1-10 percent of triazole compounds, 0.5-3.0 percent of sebacic acid, 0.2-1.0 percent of adipic acid, 0.5-1.5 percent of sodium benzoate, 0.3-5 percent of inorganic base, 0.01-0.1 percent of antifoaming agent and 0.01-0.1 percent of colouring agent. The cooling solution has a freezing point of below -50 DEG C and a boiling point of 166-191 DEG C; and because the cooling solution does not contain water, problems of boiling, gas etching, evaporating, scaling, rusting and the like caused by water existing in the cooling solution are thoroughly eliminated, a steam air resistance layer seriously influencing heat radiation is avoided from generating, power of an engine can be effectively improved and fuel is saved. Because the cooling solution does not contain water and has a reasonable corrosion inhibition system, the problem of corrosion is thoroughly solved; and the cooling solution has a service life of reaching up to 8 hundred thousand kilometers, is added once without replacement, is a life-cycle cooling solution, is especially suitable for military vehicles, high-end vehicles and high-power heavy-loading trucks and passenger cars, and can ensure that the vehicles safely run under extremely hot weather, severe cold weather, and severe environments such as desert, plateau, snowfield and the like.

A jacket that may be used in hot weather is disclosed. The jacket may be particularly useful for motorcycle and equestrian riders. The jacket is sufficiently fashionable and stylish such that it may be worn on other occasions as well. According to some aspects the jacket includes two sleeves, a chest portion, and a back portion. The chest portion is shorter than conventional jackets, and according to some arrangements the chest portion is designed to accent a woman's figure and be worn above the wearer's breastline. A zipper, snaps, buttons, or Velcro, and / or decorative trim may also be added.

Keeping an infant comfortable and well ventilated when out for a stroll with mommy is the intent of this invention. A conditioned-air baby stroller keeps an infant comfortable while pushed by its caretaker. The working components of the heating and cooling apparatus are easily attachable by Velcro® or other attachment means to the baby carriage. Reliable electrical power is assured by a small electrical generator mechanically rotated when the childcare provider pushes the four-wheeled carriage. The generator provides heated or cooled air for the baby's comfort, electrically powering fan assemblies, easily mounted inside the canopy in a flow direction desired by the caretaker. Each fan assembly comprises a housing, a blower fan and motor, and heating element disposed in the housing and protected from accidental contact by a protective screen. An optional battery, kept charged by the electrical generator, continues to provide electric power if the caretaker stops the carriage. By applying electrical power from the generator to the heating element the infant is kept warm in cold weather. In hot weather the air intake side of each fan housing allows insertion of a refrigerated cold pack for increased infant comfort. Desired heating and cooling conditions are selected by activation of selection buttons fixedly securable by a clamp mechanism is to the handle of the baby stroller. An optional snap-on cover provides a microenvironment for the infant in times of temperature extremes.

This invention permits biodiesel (Fatty Acid Methyl Esters—FAMES) fuel and / or fuel blends to be used in cold weather climates without crystallization / precipitation of solids which plug fuel lines. The high melting point components are removed by physical separation from the biodiesel. Crystallization or distillation are used to separate the high melting temperature components. The low melting temperature components are used for blending with petroleum diesel with reduced or no winterization; low melting temperature components are used as a biodiesel with reduced or no winterization; low melting temperature components are blended into aviation jet fuel; or low melting temperature components are used as aviation jet fuel. The high melting temperature components are blended with petroleum diesel for temperate and / or hot weather climates.

A method and system for a ceiling fan with an integral water mister apparatus, particularly for outdoor use, includes a conventional ceiling fan having a multi-speed motor, forward and reverse directional capabilities and a plurality of rotating blades in a variety of diameter sizes. A series of water dispensing ports are directly above the blades toward the outer perimeter that selectably dispense a fine water mist. The mist is obtained by connecting ⅜″ tubing to an available standard water supply and having said tubing conduct the water through a six by two inch, five micron, polyphosphate filter. The filtered water then travels through the tubing attached to the apparatus to the misting dispensing nozzles. The fine mist will evaporate quickly in hot weather producing a cooling effect without significantly wetting surrounding objects. The air circulation provided by the fan blades enhances the distribution of the mist and the cooling effect.

The invention discloses a foamed polystyrene curtain plate sheet and a manufacturing method thereof. The foamed polystyrene curtain plate sheet consists of the following components in part by weight: 100 parts of polystyrene, 1 to 50 parts of blended resin, 1 to 50 parts of filler, 0.1 to 20 parts of compatilizer, 0 to 1 part of antioxidant, 0 to 5 parts of processing aid, 0.1 to 10 parts of foaming agent and 0.1 to 10 parts of cross-linking agent. The foamed polystyrene curtain plate sheet manufactured according to a formula of the invention has light weight, aging resistance, corrosion resistance, heat insulation and insulating property, and the most outstanding advantage of high thermal deformation resistance, and can adapt to direct sunlight under a hot weather condition in summer in low-latitude regions. The manufacturing method of the foamed polystyrene curtain plate sheet is simple and practical, and has wide application prospect.

An ultraviolet protective garment is provided for wear to protect the user's neck, chest, upper back, chin, and portions of the shoulders. The sun protective neckwear garment is provided for wear primarily during outdoor activity, wherein the user engages in activity which exposes the user's neck, upper chest, upper back, chin, and shoulders to the ultraviolet rays of the sun whether in hot weather climate or cold weather climate, and can be used during indoor activity, or when a user is driving in a vehicle; and provides a secondary wicking utility. The neckwear garment is a single body tubular unit, with a unique generally ship decanter shape, comprising a chin-collar portion; a neck portion; bib portion having shoulder portions. The neckwear garment is manufactured from flexible, elasticized, fabric with ultraviolet blocking capability. The neckwear garment can reduce the wearer's risk of developing various types of skin damage.

A thermally controlled drinking water system for animals having a thermally insulated cabinet containing a water reservoir, a water bowl, a vapor-compression refrigeration water-cooling system, and an electric water heating system, maintains the drinking water at an optimal temperature in both hot weather and freezing weather conditions. The reservoir stores at least five days of water and automatically maintains the water bowl in a constantly filled condition through a water supply conduit and visual indicator indicates when the reservoir water level is getting low. The evaporator coil of the cooling system is engaged with the water bowl in heat exchange relation and electrical heating elements are engaged in heat exchange relation with the water bowl and reservoir. Cooling and heating operations are controlled by an ambient air temperature sensor on the cabinet exterior and a water temperature sensor on the side wall of the water bowl.

An auxiliary power system for trucks, the power system having a small diesel engine coupled to an air conditioner compressor and an automotive style alternator. During hot weather the auxiliary engine rotates the air conditioner compressor to provide cool air to the truck and electrical power to truck accessories by load management controls. When peak loads occur, the voltage is reduced into the field of the alternator allowing the small engine to simultaneously operate the air conditioning compressor. During cold weather the engine coolant is used to cool the auxiliary engine and is circulated through a heat exchanger for warming of the truck interior. Full capacity of the alternator is allowed, accommodating the higher amp draws typical of cold weather diesel operation.

The invention relates to the field of transformer substations, and particularly to a waterproof high and low voltage pre-assembled transformer substation with safe heat dissipation. The waterproof high and low voltage pre-assembled transformer substation with safe heat dissipation comprises an outer box body, an inner box body and a base; multiple radiating slots are uniformly formed at the upside and the downside of the lower parts of the left and right sidewalls of the outer box body; waterproof cover plates with driving motors are fixed at the left and right inner sidewalls of the outer box body in a sliding manner; radiating fans are fixed at the upper parts of the left and right inner sidewalls of the outer box body; radiating slots are formed in the upper parts of the left and right sidewalls of the inner box body; the top surface of the inner box body and the top surface of the outer box body are connected through radiating metal sheets; liquid level sensors are arranged at the left and right outer sidewalls of the inner box body; a central processor and a temperature sensor are arranged at the inner sidewall of the inner box body; and the central processor is electrically connected with the temperature sensor, the radiating fans, the driving motors and the liquid level sensors respectively. The waterproof high and low voltage pre-assembled transformer substation with safe heat dissipation has good heat dissipation effects and can run normally when meeting with flood disasters; and a ceiling is arranged to guide and drain the rain and can shield the sun in hot weather.

The invention discloses a grouting material which is prepared by sulphoaluminate cement, ordinary Portland cement, granulated blast-furnace slag powder, heavy calcium powder, gypsum powder, sodium aluminate, pulverized fuel ash, ceramsite, river sand, hydroxypropyl methyl cellulose, ulex europaeus agglutinin (UEA) expanding agent, naphthalene water reducer, sulphamate water reducing agent, polycarboxylic acid water reducing agent, citric acid, boric acid, sodium gluconate, sodium phosphate, sodium tartrate, calcium carbonate, lithium carbonate, calcium formate, calcium acetate, polydimethyl siloxane, polyoxyethylene polypropylene pentaerythritol ether and silicone emulsion. The grouting material has the characteristics of being rapid in coagulation time, good in flowing property, high in early strength, good in anti-fatigue performance, suitable for cold and hot weather, convenient and fast in construction, etc.

The invention discloses a method and a system for controlling battery temperature of an electric vehicle. The method comprises the steps of: when a first preset condition and a second preset condition are met, acquiring a temperature signal on an air outlet of a vehicle battery, wherein the first preset condition is that the air inlet temperature of a battery pack is within a preset temperature range, the second preset condition is that after the air inlet temperature is acquired, time is delayed by a period, and the period is the time on flowing from the air inlet to the air outlet by air; judging whether the temperature of the air outlet is larger than a preset temperature at normal temperature or not, if so, opening a heat radiating air duct; or else, starting a heating board. The method and the system for controlling the battery temperature of the electric vehicle not only can be used for radiating heat for the battery in hot weather, but also can be used for heating the battery in cold weather; and meanwhile, the method and the system can intelligently judge whether ambient temperature is suitable for driving or not and carry out corresponding treatment, and can guarantee the battery to work in a comparatively appropriate operation environment to a certain extent.

A vehicle body structure has a heat radiation insulating arrangement that improves the thermal environment inside a vehicle cabin when the vehicle is positioned at a sunny location during hot weather by increasing the insulation effects of the automobile body along with blocking radiant heat. The heat radiation insulating arrangement of vehicle body structure forms a first space by arranging a light shielding shade on the inside of a windowpane, a second space formed between the exterior roof panel and ceiling material, and an air passageway that links the first space and the second space to allow the air to flow from the first space to the second space. A reflective material is provided on the surface of the second space of the ceiling material.

The invention discloses delayed coagulation ready-mixed mortar. The delayed coagulation ready-mixed mortar comprises the following components in percentage by weight: 20-35% of cement, 60-79% of medium-fine sand, 0.05-0.3% of cellulose ether high molecular polymer, 0.1-2.0% of technical fiber, 0.1-4.0% of expanding agent, 0.1-1.0% of water reducing agent and 0.1-1.0% of retarding agent. The delayed coagulation ready-mixed mortar provided by the invention has the advantages that the coagulation time of the ready-mixed mortar can be effectively prolonged, simultaneously the hardening of the mortar can be delayed, the potential safety hazard of quality caused by secondary water addition is prevented, the delayed coagulation ready-mixed mortar is convenient to use, the secondary time and labor consuming water addition is avoided when the delayed coagulation ready-mixed mortar is used in hot weather construction, and the preparation method is simple and low in cost.

The invention relates to a cool tea, in particular to a Yimen cool tea which prevents sunstroke and relieves thirsty and a manufacturing method thereof. The best weight (portion) mixture ratio of the cool tea of the invention is 105 portions of unprepared liquorice, 7.5 portions of small-leaved Chinese mosla, 7.5 portions of plantain, 7.5 portions of wild honeysuckle, 7.5 portions of white chrysanthemum, 7.5 portions of heartleaf houttuynia herb, 4.5 portions of fresh lotus leaves and 10.5 portions of neomenthol. The manufacturing method for making into the cool tea of the invention by the components is that the unprepared liquorice is thrashed into fine powder; the fine powder of the unprepared liquorice, the small-leaved Chinese mosla, the plantain, the wild honeysuckle, the white chrysanthemum, the heartleaf houttuynia herb and the fresh lotus leaves are put into a pot and boiled by strong fire, and then are cooked by slow fire for 25 to 30 minutes; then the neomenthol is put into the mixture and decocted together for 5 to 10 minutes; finally the cool tea can be obtained by filtering, depositing and cooling. The Yimen cool tea of the invention has the functions of preventing the sunstroke and relieving thirsty, which is applicable to high temperature and hot weather and good prescription for preventing the sunstroke and cooling.

The service life of a traditional LED (light-emitting diode) lamp can be directly affected by heat dissipation effect of chips, and accordingly a larger aluminum alloy cooling fin is arranged on the top of the LED lamp so as to reduce the temperature by air circulation. When the power of the LED lamp becomes larger, the size of the aluminum alloy cooling fin increases to dissipate the heat by air circulation. According to this arrangement, the heat dissipation effect is affected in harsh and hot climate and the cost of the larger aluminum alloy cooling fin is high. By means of utilizing diverse physical phenomena and reverse thinking, the channelized LED lamp is capable of gathering the heat in narrow channels so as to enable the heat produced rapidly to cause temperature difference and air circulation. Due to setting temperature limitation, the wind can be blown out frequently and heat dissipation effect is consistent in high-temperature regions and hot weather. The channelized LED lamp is simple and scientific in structure and the aim of natural ventilation can be achieved by the gas flue effect without the huge cooling fin. Accordingly, a large number of aluminum alloy materials can be saved, the low-cost, low-carbon, energy-saving and environment-protection effect of the channelized LED lamp can be achieved and the country and the people can benefit from the channelized LED lamp.

A temperature conditioning apparatus for the human body includes a vest or other clothing unitary with a thermoelectric or Stirling cycle heat pump worn by the user. The unit is powered by a battery source worn on the user's belt or other part of his or her body, or by an externally-mounted electrical energy source, for example, in a vehicle. The vest has front and rear panels with an air flow layer and permeable inside layer that accept and release conditioned air to the user. The vest may be used with body armor or other protective layers, that is, the vest may be worn underneath body armor or body armor may be built into the vest, or the vest may be used without body armor to cool the user in an exceptionally hot environment such as a non-air conditioned space in hot weather.

The invention discloses a ventilation double glass curtain wall integrating green plants with a photovoltaic system. The ventilation double glass curtain wall comprises a ventilation double glass curtain wall body, a green plant soilless cultivation system and a solar photovoltaic power generation system, wherein the green plant soilless cultivation system is vertically installed in an air interlayer of the ventilation double glass curtain wall body, a photovoltaic power generation panel is obliquely installed on the lower edge of outer-layer reinforcing safety glass, an air brake is arranged at the position of an opening in the lower portion of the photovoltaic power generation panel, and ventilation gates are arranged on the top and bottom of inner-layer glass respectively. The ecological cooling effect of the green plant system is utilized; through cooperation of the green plant system and the photovoltaic power generation system, energy efficiency of the double glass curtain wall in hot weather can be improved remarkably, energy consumption of a building is reduced, and vegetables, fruits and flowers can be cultivated in the space of the air interlayer, so that economic benefits are obtained and the environment quality of indoor space is improved.

The invention discloses a layer stranded optical cable, which is suitable for being used under extreme climatic conditions such as high cold weather, high hot weather, high temperature difference weather, etc., and has relatively small cross sectional area. The technical proposal is that the layer stranded optical cable comprises a cable core and a protective cover surrounding the cable core, wherein the cable core is twisted by at least two optic cable core wires, which are prepared by wrapping optical fiber with a metal sleeve. The invention replaces the non-metal sleeve in the prior art with the metal sleeve, so that the optic cable core wire has higher side pressure resistant performance, the sleeve of the optical fiber cable is not armored by the steel strip or aluminum strip at the inner side or outer side thereof, the center of the optical fiber cable has no need to bear heavy reinforced core, and the outside diameter of the optical fiber is remarkably reduced. Furthermore, because of the relatively low expansion coefficient of the metal sleeve, the invention solves the engineering problem arising from relatively severe thermal expansion and contraction of common loose tube layer stranded optical cable in regions with high cold weather, high hot weather or high temperature difference weather.

The invention discloses a heat-stress-relieving compound feed for a perinatal-period sow and a preparation method of the compound feed. The feed comprises the following components by mass percent: 53-60% of corns, 15-25% of bean pulp, 1-5% of wheat bran, 1-4% of rice bran, 8-18% of DDGS (Distillers Dried Grains with Soluble), 1.2-1.8% of bean oil, 1.0-2.0% of microcapsule-coated coconut oil, 1.0-1.4% of calcium hydrogen phosphate, 0.8-1.2% of limestone, 0.8-1.2% of arginine, 0.1-0.3% of lysine, 0.1-0.2% of methionine, 0.03-0.06% of threonine, 0.1-0.2% of choline chloride, 0.30-0.45% of salt, 1-2% of a premix and 0.02-0.05% of a complex enzyme preparation. According to the compound feed, by regulating and controlling the nutrition of the perinatal-period sow and improving the viability of a new born piglet in hot weather and the milking performance of the perinatal-period sow, the health condition of the perinatal-period piglet is improved and the growth speed of the perinatal-period piglet is increased.

The invention discloses a polyphosphazene-modified cellular polyurethane elastomer and a preparation method thereof. The method comprises the following steps: 1, reacting excessive isocyanate and polymer polyol at the temperature of 100-150 DEG C for 30-120 minutes to generate a prepolymer of which the molecular chain end is -NCO radical; 2, performing chain extension by adopting a full-polymerization method, mixing the prepolymer and a chain extender component in the ratio of 100:(3-12), stirring at the speed of not less than 1,000 revolutions per minute for 5-30 seconds, rapidly injecting a feed liquid into a mold of which the temperature is 60-100 DEG C, pre-curing for 10-60 minutes and demolding; and 3, placing a demolded product into a drying oven of which the temperature is 80-120 DEG C, and continually curing for 6-12 hours. The cellular polyurethane elastomer prepared through the method has superior damping and buffering properties and superior moisture and aging resistance, and is mainly applied to high-strength damping elements capable of bearing dynamic fatigue in severe environments, vibration-damping and noise-reducing elements capable of bearing aging on wet-hot weather on ships and the like, as well as railway gaskets, automobile damping springs, elevator damping blocks and bridge damping blocks for use in tropical zones.

The invention relates to a concrete panel void repairing method. The purpose is to improve the efficiency of concrete anti-leakage panel void repairing and enhance the safety and reliability of engineering operation. According to the technical scheme, the method includes the steps that a, void region detection is performed, LTD ground penetrating radar is adopted for detecting a panel void region and determining the panel void region, and void depth information is collected; b, grouting hole positions are arranged inside the panel void region, the distance d1 between grouting holes is equal to 2 m-3 m, the row distance d2 is equal to 2 m-4 m, and quincunx-type arrangement or rectangular arrangement can be performed; c, drilling is performed according to the arrangement of the grouting hole positions; d, grouting starts to be performed upwards step by step from the lower portion of a panel in the grouting process; e, after two hours from grouting, cement mortar is adopted for plugging the grouting holes, the plugging height is larger than the height of the panel by about 3 mm-5 mm, and the surface of the panel is polished to be flat after standing for about 8 hours; f, in hot weather, water should be sprayed to the void repairing region for maintenance.

The invention relates to an automobile roof folding sun-proof device which is provided with a roof rack, the two ends of which are respectively installed with rotary brackets that are respectively connected with a front sunshade plate and a rear sunshade plate, and the front sunshade plate and the rear sunshade plate are respectively wound on the rotary brackets and rotate around the rotary brackets. When the automobile is parked in hot weather, the front and the rear sunshade plates can be manually put down, so that the automobile body can be shaded and sun-proof; when the automobile is driven, the front and the rear sunshade plates can be withdrawn and then arranged on the roof rack through a resetting device and used as automobile roof, thus beautifying the automobile.

The invention discloses an automobile tire cleaning and temperature lowering device, and belongs to the field of automobile equipment. The automobile tire cleaning and temperature lowering device comprises an automobile body and wheels, wherein the wheels are arranged on the automobile body; a power cavity and a cleaning groove are arranged in the automobile body, and the cleaning groove is connected with the power cavity; an end cap is arranged on the end part of the cleaning groove; a press plate and two to three connecting rods are arranged in the cleaning groove, and the connecting rods are arranged on the press plate; each connecting rod penetrates through a through hole of the end cap and is connected with a top plate; a mud scraping strip is arranged on the top plate and corresponds to each wheel; a row of water spraying heads is arranged in the automobile body and corresponds to the wheels. The automobile tire cleaning and temperature lowering device has the advantages that the structure is simple, and the convenience in use is realized; the possibility of slipping is avoided by the scraping of mud on the wheels in the driving process on muddy roads; the wheels can be performed with temperature lowering in summer, and the risk of wheel blasting caused by hot weather is further decreased.

The invention discloses a stratospheric airship electronic equipment cabin temperature control system and control method. The control system include a phase-change heat storage subsystem, a liquid circulation subsystem and a blower cooling subsystem; the phase-change heat storage subsystem includes a phase-change heat exchanger and a heat pipe installed on the phase-change heat exchanger; the liquid circulation subsystem includes a heat exchanger, a pump and a liquid storage device which are arranged in an electronic equipment cabin; the heat exchanger, the pump, the liquid storage device and the phase-change heat exchanger are connected with one another sequentially through a first pipeline so as to realize circulation; the heat exchanger is connected with high-heat flux density electronic equipment; the blower cooling subsystem includes a blower and a blowing-in pipeline; the blower is communicated with a second pipeline and a third pipeline respectively; the phase-change heat exchanger is located in the second pipeline; and the third pipeline is communicated with the blowing-in pipeline. With the stratospheric airship electronic equipment cabin temperature control system and control method of the invention adopted, adverse effects which are caused by a situation in which a single cold source cannot meet refrigerating requirements in low-altitude flight of an airship in an extreme hot weather can be prevented, and insufficient refrigeration in the high-altitude height of the airship in low atmospheric density can be also prevented.

The invention relates to surface coating liquid of a hot galvanized plate and a preparation method of a high-humidity resistant hot galvanized passivation plate, and belongs to the field of hot galvanized plate. The technical problem solved by the invention is that the existing hot galvanized steel plate has outstanding environmental protection problem and is not suitable for the alternating wet and hot weather of high humidity and high temperature in South China. The surface coating liquid of the hot galvanized plate provided by the invention comprises the following in parts by weight: 100 parts of water, 2-10 parts of fluorine-containing auxiliary agent, 1-10 parts of corrosion inhibitor, 10-20 parts silicon-containing substance and 15-45 parts of water-based organic matter; in the invention, the surface coating liquid of the hot galvanized plate is coated on the surface of the hot galvanized plate, and then the high humidity resistant hot galvanized passivation plate is obtained bydrying and and solidifying. With excellent corrosion resistance, heat resistance, water resistance, high humidity resistance, fingerprint resistance and self-lubricating property, the hot galvanized plate coating prepared by the invention is suitable for alternating wet and hot weather with high humidity and high temperature in South China.

The invention relates to an anti-stress feed additive which takes Chinese herbal medicaments and organic chromium as core components and a preparation method of the anti-stress feed additive. The feed additive consists of the following components in parts by mass: 10 to 20 parts of astragalus membranaceus, 10 to 20 parts of scutellaria baicalensis, 10 to 20 parts of mint, 10 to 20 parts of spina date seeds, 20 to 40 parts of glucose, 2*10<-7> to 3*10<-7> parts of chromium picolinate, 1 to 5 parts of KCl, and 1 to 5 parts of NaHCO3. The anti-stress feed additive can be obtained by mixing, crushing, grinding and drying the components. By using the anti-stress feed additive, the anti-stress capacity of livestock and poultry can be enhanced; the anti-stress feed additive is particularly suitable for the livestock and the poultry during long-distance transport in dry and hot weathers, can relieve and treat transport stress, and can also rapidly supplement electrolyte loss caused by livestock and poultry dehydration and rapidly recover cell osmotic pressure and regulate in-vivo acid-base balance; the meat quality of the livestock and the poultry is improved; the selected Chinese herbal medicaments are easily absorbed and digested by the livestock and the poultry; the harm to human health caused by residues of the Chinese herbal medicaments in the livestock and the poultry is avoided.

The invention belongs to the technical field of airplane fuel supply system design and relates to a small airplane fuel supply system. Two fuel suction ports are designed in the lower positions of the front portion and the rear portion of a left wing fuel tank and two fuel suction ports are designed in the lower positions of the front portion and the rear portion of a right wing fuel tank. Fuel collection grooves are designed at the positions of the suction ports. After fuel of fuel supply pipelines at the front portion and the rear portion of the left wing fuel tank and fuel supply pipelines at the front portion and the rear portion of the right wing fuel tank is collected, the fuel then passes through a fuel selector, is input into a small fuel collection tank through gravity and then passes through an auxiliary fuel pump, a fuel cut-off valve, a fuel filter and a fuel supply fireproof hose assembly into an engine fuel inlet. A fuel return pipeline is arranged between the fuel collection tank and an engine fuel adjusting component and provided with a one-way valve. The fuel return pipeline is connected through a fuel return fireproof hose in a fire region. Fuel steam generated in a fuel pipe in hot weather can be effectively reduced, maintainability is improved, and the requirement for fireproof design is met. A ventilation pipeline is arranged at the upper portion of the fuel collection tank and the fuel collection tank is connected with a whole wing fuel tank 1 through the ventilation pipeline. By the adoption of the small airplane fuel supply system, it can be guaranteed that the fuel can be supplied to an engine continuously and reliably in various flight attitudes and the airplane flight safety is improved.