1423results about How to "Play a role in heat preservation" patented technology

A method for breeding beef cattle and mutton sheep standardly on a large scale through photovoltaic facilities includes the four parts that first, a photovoltaic facility greenhouse is built, maize seedlings or high-quality green forage grass Zea mexicana is produced throughout the year to be used as green fodder of beef cattle and mutton sheep; second, the beef cattle and the mutton sheep are bred and bio-organic fertilizer is produced standardly on a large scale through the photovoltaic facility greenhouse; third, photovoltaic power generation is performed for self use, and excessive electricity is connected into the state grid; fourth, a beef cattle and mutton sheep traceable system is built, and foods are made safe and sanitary. Through the method, not only can solar resources be effectively utilized to output clean and green energy, but also efficient planting and breeding can be achieved, by-products are processed into organic fertilizer, and a new path is provided for green agricultural production. Because a full-frame high-standard support system is adopted for the photovoltaic agricultural greenhouse and photovoltaic modules are arranged on the greenhouse, the space of the greenhouse can be effectively utilized, power utilized in the greenhouse can be supplied through a photovoltaic power station, and equivalently, stereoscopic production is formed on the land with the same area.

The invention provides a combined-loading stress corrosion testing apparatus. The apparatus comprises a tension ring; a hermetically arranged environmental container; a gas inlet pipe, a gas outlet pipe, a thermocouple and a pressure sensor which extend into the environmental container from above; upper and lower clamps respectively arranged at the upper and lower ends of the environmental container; a loading bolt in threaded connection with the free end of the lower clamp; a rotary motor connected with the free end of the upper clamp; an electromagnetic stirrer arranged in the lower part of the environmental container; and a magneton arranged in the container. The radial end of the tension ring is fixedly connected with the upper clamp, and the other end of the tension ring is connected with the end, far away from the lower clamp, of the loading bolt; and the tension ring applies tension on the upper and lower clamps through rotation of the loading bolt. A testing method based on the apparatus is used for research on corrosion resistance of a drilling rod, an oil sleeve material and the like in an oil and gas well with high temperature, high pressure and a multiphase flow corrosive medium under complex stress conditions including drawing, torsion and liquid flow impact.

The invention discloses a twin-roll thin-strip casting side sealing plate. The side sealing plate comprises a panel containing boron nitride materials and a base plate with aluminum-silicon thermal insulation materials, wherein the panel and the base plate are fixed through adhesion. The invention also discloses a method for manufacturing the side sealing plate. As the thermal conductivity of thebase plate of the side sealing plate is much less than that of the panel, the heat of the base plate is not easy to dissipate, and heat-insulation effect is improved so as to ensure the quality of theside parts of strip steel. Moreover, equal thermal expansion coefficients of the base plate and the panel can avoid twist deformation or cracking after the side sealing plate is heated. Modified silicone resin binder resistant to high temperature not only enhances bonding strength, but also plays a role in thermal insulation.

The invention provides a heat storage type controllable double-channel ventilation heat preservation wall system and an operation method thereof, and belongs to the technical field of passive building energy conservation. The heat storage type controllable double-channel ventilation heat preservation wall system and the operation method thereof are characterized in that double air channels with a phase change heat storage function are arranged, controllable air valves are arranged on the upper sides and the lower sides of the channels, and flexible conversion between a ventilation wall and an air heat preservation wall is completed by controlling the air valves, so that ventilation and heat preservation functions of a building are achieved. The heat storage type controllable double-channel ventilation heat preservation wall system comprises a glass cover plate, the two channels, a heat-absorbing material layer, a phase change heat storage material layer and the multiple controllable air valves, and the heat-absorbing material layer and the phase change heat storage material layer are arranged between the two channels. When the controllable air valves on the upper sides and the lower sides of the channels are opened, the natural ventilation wall is formed. When the controllable air valves on the upper sides and the lower sides of the channels are closed, the air heat preservation wall is formed. The controllable air valves are controlled according to the indoor and outdoor temperature and humidity parameters and the change of solar radiation, and conversion between the air heat preservation wall and the natural ventilation wall is achieved, so that coordinated operation of the heat storage type controllable double-channel ventilation heat preservation wall system and the operation method thereof, the building structure and the outdoor climate is achieved.

The invention discloses a cold region tunnel anti-freezing insulation system and an anti-freezing insulation construction method. The cold region tunnel anti-freezing insulation system comprises an aluminum film, lightweight aggregate thermal insulation concrete, a steel corrugated plate, a drainage device, an aluminum film fixing device and a heating device, wherein the whole aluminum film is arch-shaped; the aluminum film is fixed on a secondary lining through the aluminum film fixing device; a gap is formed between the aluminum film and the secondary lining; the bottom of the gap formed between the aluminum film and the secondary lining is connected with the drainage device with a birdmouth; the width of the gap formed between the aluminum film and the secondary lining is smaller than or equal to the width of the birdmouth of the drainage device; the steel corrugated plate is arranged on the inner side of the aluminum film; the lightweight aggregate thermal insulation concrete is filled between the steel corrugated plate and the aluminum film; the heating device is buried in the lightweight aggregate thermal insulation concrete between the steel corrugated plate and the aluminum film. By adopting the cold region tunnel anti-freezing insulation system and the anti-freezing insulation construction method, the problems of water leakage and freezing damage in the conventional cold region tunnel can be effectively solved, the anti-freezing damage capability of the cold region tunnel lining is greatly enhanced, and the structural durability of the cold region tunnel lining is enhanced.

The invention provides a multifunctional extraction pot. A lifting stirring mechanism is arranged at the top of a pot body, and comprises a stirring shaft, a stirring motor fixed on a stirring motor base, and a lifting motor fixed on a lifting motor base, wherein the output end of the lifting motor is connected with the stirring motor base by means of a screw rod and drives the stirring motor base to lift, the lower part of the pot body is provided with a filter net, the bottom of the pot body is provided with an ultrasonic vibration source, the bottom of the pot body is also provided with a breather pipe, the breather pipe extends into the pot body through an air inlet, the joint of the breather pipe and the air inlet is of a sealed structure, and the breather pipe is upwards provided with a plurality of air nozzles. A stirring paddle in the multifunctional extraction pot can move up and down, so that the stirring is more uniform, dead corners are avoided, the extraction speed is higher, and the effect is better.

The invention provides a planting method for red-fleshed pitaya, belonging to the technical field of cultivation of fruit trees. The planting method comprises the following concrete steps: (1) orchard building; (2) field planting; (3) field management: a step of carrying out watering once every 2 to 3 days in 2 to 3 months after planting of a pitaya seedling so as to maintain moist of soil, carrying out watering once every 7 to 13 days after three months, topdressing a fertilizer for 6 to 8 times in the first year after planting of the pitaya seedling, wherein the applying amount of a fertilizer is 1 to 1.5 kg per plant every time, topdressing the fertilizer for 3 to 4 times every year after flowering and fruiting of pitaya, wherein the applying amount of the fertilizer is 9 to 11 kg per plant every time, and controlling diseases and pests in the growth period of the pitaya; (4) pruning; (5) artificial pollination; (6) thinning of flowers and fruits; (7) bagging; and (8) harvesting. The planting method for the red-fleshed pitaya provided by the invention designs a planting scheme by aiming at the growth characteristics of the red-fleshed pitaya, promotes healthy and vigorous growth of the red-fleshed pitaya, and improves the yield of the red-fleshed pitaya.

The invention provides an explosion-proof and fire-proof lightweight wall which comprises an explosion-proof plate, a fire-proof plate, a keel and a filling material. The explosion-proof and fire-proof lightweight wall is characterized in that the explosion-proof plate is positioned on the outer layer of a wall body and comprises a surface layer and a sandwich layer, the fire-proof plate is arranged on the inner layer of the wall body, the keel is positioned in the fire-proof plate for fixing the wall body, and the filling material is positioned in a space formed between the keel and the fire-proof plate.

The invention provides red mud and fly ash fireproof insulation brick which use solid waste red mud produced by alumina industry and solid waste fly ash in fuel electric plant as main raw materials and uses lightweight aggregate and fireproof clay as auxiliary materials. The weight percentage of each component is 10-60 of red mud, 10-50 of fly ash, 15-48 of lightweight aggregate, 4-18 of fireproof clay and 12-25 of water. The used lightweight aggregate is lightweight ceramsite, floating bead, vermiculite, expansion perlite or other lightweight fireproof raw material. The red mud and the fly ash fireproof insulation brick of the present invention have advantages of small volume density and low heat conduction coefficient, can be used for heat-insulation layer of industrial high temperature kiln in industries such as metallurgy, machinery, non-ferrous metal, power, chemical industry and building material, can insulate heat for thermal source, can prevent heat loss in with temperature higher than ambient temperature, and reaches purpose of utilizing industrial waste material, saving resource and energy and reducing emission.

The invention discloses a vacuum adsorption forming device which can be suitable for mass production of formed pieces through polypropylene cavity plates. The device comprises a vacuum extraction module, a vacuum box, a hydraulic machine and a heating module, wherein the vacuum extraction module is connected with the vacuum box; the vacuum box is arranged on a fixed plate of the hydraulic machine; a load bearing lifting module which is used for arranging molds and can vertically lift or lower the molds is arranged in the vacuum box; a press frame which can fix a polypropylene cavity plate at the opening of the vacuum box is arranged at the opening of the vacuum box; the heating module is arranged on one side of the hydraulic machine and comprises a heating unit and a moving unit which canbe used for moving the heating unit to the upper side of the fixed polypropylene cavity plate to heat the polypropylene cavity plate and can be deviated from the polypropylene cavity plate after the polypropylene cavity plate is heated; and the heating unit is connected with the moving unit.

The invention discloses a vacuum low temperature cooking machine, which comprises a machine housing; a container and a heating circulation system are disposed in the machine housing; the container comprises a water basin and a machine cover; the heating circulation system comprises a heater, a water pump and a connecting pipeline; the heater and the water pump are connected in series with the water basin through the connecting pipeline to form a closed circulating loop; and the water basin is provided with a water inlet and a water outlet communicated with the connecting pipeline. The vacuum low temperature cooking machine realizes uniform temperature of water in the whole container; such heating circulation loop of heating and circulating water makes water quickly flowing through the heater absorb above 95% of heat energy of the heater so as to save energy source; the heater is placed at the outer part of the container, and such arrangement can make the water basin of the cooking container get maximal cooking space and provide convenience for user to clean.

The invention discloses a medicine extracting tank, comprising a tank body, a charging port, an exhaust pipe, a slag outlet, an air inlet and a liquid outlet. A heating interlayer is arranged at the outer wall of the tank body; the medicine extracting tank is also provided with a forcible reflux device, comprising a circulation pump, a pipeline and a liquid distribution disc arranged at the bottom of the tank body, the liquid distribution disc is provided with a plurality of upward liquid spraying pipes and is connected with a pump outlet of the circulation pump by a pipeline, a baffle is arranged at the middle of the tank body, an extraction port is formed above the baffle, a pump inlet of the circulation pump is communicated with the extraction port through a pipeline, and a filter screen is arranged above the liquid spraying pipes. Medicine liquid and medicine materials in the medicine extracting tank are uniformly mixed, effective active components of the medicine materials are fast fully extracted.

The invention relates to an instantly opening and heating water-energy saving water heater system consisting of a cold water pipeline (1), a water heater (2), a heat-insulating water storage device (3), a hot water pipeline (4) and a hot water terminal (5). In the system, a new idea for solving residual cold water in a pipeline is utilized, thus a problem of waste caused by idle storage of the residual cold water is solved, and an ideal use effect of instantly heating while opening is achieved; in addition, the system has the characteristics of water, energy, time and worry saving, convenience and comfortableness. The instantly opening and heating water-energy saving water heater system is simpler, more reasonable, more convenient and more economical than other traditional systems for solving the problem of the residual cold water, such as a scheme of providing a high-power electric heating water faucet or adding an assistant pipeline for recycling the residual cold water. The instantly opening and heating water-energy saving water heater system disclosed by the invention improves the comfort level of using hot water actually, is suitable for an electric water heater, a gas water heater, a solar water heater or a combined system thereof and is also suitable for a newly assembled water heater system; or by means of the instantly opening and heating water-energy saving water heater system disclosed by the invention, the performances of old systems are improved and enhanced.

The invention discloses a method for slagging, boron removal and purification of metalluragical silicon, comprising the following steps of: selecting a metalluragical silicon material, heating until the metalluragical silicon is completely melted into a silicon solution and adjusting the temperature of the silicon solution; then adding a ternary slagging agent; removing scum on the surface of the silicon solution by stirring and carrying out a heat-insulating reaction; and standing the silicon solution for casting and then obtaining polysilicon, wherein the content of B in the polysilicon meets the solar level requirement. According to the method, complicated blowing equipment can be avoided, the process equipment can be simplified and the cost can be reduced; and the method is convenient for industrial application.

The invention discloses a porcelain pot for an electromagnetic range and a production method thereof. The porcelain pot for the electromagnetic range comprises a pot body which is a lithium and cordierite compound porcelain pot body produced by combining lithium and cordierite ceramic; and a ferrous film layer is arranged at the bottom of an inner surface of the pot body. The production method of the porcelain pot for the electromagnetic range comprises the steps of firing the lithium and cordierite compound porcelain pot body, coating a film containing a ferrous element at the bottom of the inner surface of the pot body, firing under protective gas and finally obtaining the porcelain pot containing the ferrous film layer for the electromagnetic range. The ferrous film layer is coated at the bottom of the inner surface of the porcelain pot, so that the porcelain pot with the ferrous film layer can generate an electric magnetic field when applied to the electromagnetic range; the heat generated by the ferrous film layer under the action of the electromagnetic field is directly used for heating food, so that the ferrous film layer has the advantages of high heating speed and energy source saving; and the porcelain pot body can also effectively avoid the dissipation of the heat. The production method has the advantages of simple process, convenient operation, strong controllability and the like and is beneficial to being popularized and applied.

The invention provides a method for improving temperature gradient in a high-temperature tension sample of a heat expansion phase change instrument. The method is characterized in that one of following methods is improved in the tension test process: a clamp is prepared from austenitic stainless steel to replace the existing clamp to test; or, a U-shaped heat isolation sleeve and a fixed screw heat isolation ring are arranged at the contact part of the sample clamping end and the clamp to completely isolate the clamp, the fixed screw and the tension sample through the U-shaped heat insulation sleeve and the fixed screw heat isolation ring, and the clamp is prepared from austenitic stainless steel to replace the existing clamp to test. The method has the advantages that the austenitic stainless steel is used as the clamp preparation material and the ceramic fiber sheet is used as the heat isolation sleeve and the heat isolation sleeve, so that the heat radiation and heat conduction of high-temperature objects and low-temperature objects are effectively inhibited; the operation is easy, the detachment and installation of the sample are convenient, and the material stability is guaranteed.

The invention relates to measurement for organic substances in soil, in particular to a method for measuring organic substances in soil. The method comprises the following steps: using a digestion instrument to replace a heating device; using a digestion tube to replace a conical flask to receive samples and reagent solution; covering a small funnel with a bent part above the digestion tube when heating; timing from boiling of the solution; taking down the digestion tube after 6 to 8 minutes; cooling the digestion tube; and using sodium diphenylamine sulphonate as indicator to titrate residual K2Cr2O4. The method has the advantages of good repeatability, high reproducibility, simplicity and practicability.

The invention discloses a dispensing process of a white light-emitting diode (LED), in particular to a method for increasing the color centrality and reliability of the white LED and reasonably utilizing resources and energy to the maximum limit. The method comprises the following steps: mixing and stirring fluorescent powder and water, storing the mixture of fluorescent powder and water under constant temperature, stirring the mixture, pouring the mixture in a syringe of which temperature is adjustable, dispensing with a mechanical screw dispenser, placing the product in a special thermostatic feed box to send to a thermostatic oven for roasting, shortening roasting time and storing the finished product in a thermostatic rack. By using the process of the invention, the consistency of the emitting color, chromaticity coordinate and color temperature of the white LED is increased, the yield rate and reliability of the product are improved, the production process cycle of the white LED is shortened, energy is saved, resources are reasonably utilized and the production cost is reduced.

The invention provides an underground ventilated premixing chicken house which comprises a gable wall, side walls, a roof and a floor. An inner room is further arranged in the middle of the chicken house, partition plates are arranged in the side walls and inner walls in a sealed mode, and an air inlet plate is arranged between the two inner walls. A plurality of fans and a plurality of air inlet windows are uniformly arranged on the inner top. A plurality of wet curtains and exhausting ports are formed in the side walls, and air outlet grooves are uniformly formed in the inner walls. An underground exhausting bin is arranged below the floor, an exhausting pipe and a fan are arranged on one side of the underground exhausting bin, and an air outlet is formed in the upper end of the exhausting pipe. The underground ventilated premixing chicken house has the advantages that fresh air about to enter the chicken house and air in the upper layer of the chicken house are premixed, the premixed air is uniformly discharged into the inner room through a pressure bin, vitiated air settling to the lower portion of the chicken house is smoothly discharged out through the underground exhausting bin and / or exhausting ports formed in the side walls, the vitiated air settling to the lower portion of the chicken house can be well discharged out, and overall air change in the chicken house is uniform.

The invention discloses a regenerated corundum spinel unfired ladle brick. The ladle brick comprises the raw materials of, by weight, 40-70 parts of corundum regenerated material and 2 -10 parts of a binder; the corundum regenerated material is one or two selected from a corundum regeneration precast block and corundum regeneration spinel block. The method is as below: first, weighing corundum regenerated material and the binder according to the weight ratio for standby; then milling the weighed raw materials by a kollermill; then molding in a brick machine; conducting heat treatment at 150-250 DEG C for 12-36 h; and finally picking, packing, inspecting and storing in the warehouse, so as to obtain the regenerated corundum spinel unfired ladle brick. The invention reasonably and effectively use the corundum regenerated material, reduces the waste of resources, stabilizes product performance, reduces the production cost, and improves the market competitiveness of product.

The invention discloses a building sand and stone efficient crushing and stirring device, which comprises a processing box, a heating chamber, an electric heater, a water box, a water inlet pipe, a crushing box, a crushing roller, a water spraying pipe, a backflow pipe, a stirring box, a stirring motor, stirring blades, a filter plate, a guide plate and an aeration pump, wherein the electric heater is arranged in the heating chamber; the bottom end of the heating chamber communicates with the crushing box through a first material conveying pipe; the top end of the processing box is provided with the water box; a dust suction device is arranged in the processing box; the stirring motor is arranged on the stirring box; an output shaft of the stirring motor is connected with a rotating shaft;the rotating shaft is provided with a plurality of groups of stirring blades; the filter plate is arranged inside the stirring box; a sand outlet pipe is arranged on the side wall of the stirring box; the stirring blades are arranged above the filter plate; a spray bar communicates with the aeration pump; the bottom end of the stirring box is provided with a guide plate in an inclined way; the lowest end of the guide plate is provided with a water outlet pipe. The building sand and stone efficient crushing and stirring device has the advantages that the environment-friendly effect can be ensured; the blockage of filter holes of the filter plate by sand and stone can be avoided; resources and cost can be reduced; the structure is simple; the use is convenient; the popularization is facilitated.

The invention relates to a protection device that is used to aluminum electrolyzing inert anode baking starting or exchanging that includes tank loading inert anode, the cover end, conductive terminal. Hanging or hoisting hole is set on the tank or cover end, and holes are set on the cover end. The inert anode is loaded inner the tank, and the anode guiding bar passing through the hole on the cover end. The invention could avoid the inert anode impact of strong heat, electric and heat corrosion gas, and has heat preservation protect to the inert node and the electrolytic tank.

The invention relates to the field of heating of small household electrical appliances and specifically relates to a pressure relief structure. The pressure relief structure comprises a kettle lid structure and a cavity, wherein a water outlet is arranged on the kettle lid structure, the kettle lid structure is buckled above the cavity, and a water outlet valve structure for opening and closing a connecting channel between the water outlet and the cavity is arranged in the kettle lid structure. The pressure relief structure is characterized in that a first pressure relief hole for exhausting steam is formed in the kettle lid structure, and an elastic covering piece is arranged on the first pressure relief hole; when the elastic covering piece is jacked up by high-pressure steam in the cavity, a gap is formed between the first pressure relief hole and the elastic covering piece, and the gap can communicate the cavity with the outer atmosphere; and when air pressure in the cavity is lower and can not jack up the elastic covering piece, the first pressure relief hole is covered, and the cavity can not be communicated with the outer atmosphere through the first pressure relief hole. The pressure relief structure has the advantages of simplicity, safety, reliability and double protection in use of a user.

The invention relates to a heat insulation and preservation plastic film. The heat insulation and preservation plastic film is prepared from the following raw materials in parts by weight: 80-100 parts of polyethylene resin, 15-20 parts of an inorganic infrared heat insulation and preservation agent, 20-30 parts of a dripping agent, 1-5 parts of a dispersant, 1-5 parts of an aromatic amine antioxidant, 1-5 parts of a Ca / Zn composite stabilizer and 2-3 parts of a fog reducing agent. The heat insulation and preservation plastic film provided by the invention has high strength and good performance, can prevent a large amount of infrared rays from entering a greenhouse in the daytime and play a role in insulating heat and can prevent energy from dissipating in the nighttime and play a role in preserving heat.

The invention discloses a building wall body and a roofing structure for heat preservation and regulation and ventilation. The building wall body and the roofing structure are characterized in that a wall body air brick layer and a roofing air brick layer are respectively built in a vertical surface layer and a roofing layer of a building external protecting wall body and the roofing structure, wherein the wall body air brick layer and the roofing air brick layer are hollow and are formed by more than one air brick passing through air channel openings of brick bodies; adjacent air channel openings between the air bricks in the air brick layer are connected to form the air channels; and the air channels form the external protecting wall body and the roofing structure of the building. The invention breaks through the restraint of the traditional design idea of the external protecting wall body and the roofing, uses the air layers and is matched with a temperature source, not only can play a role of preserving the heat of the external wall body and the roof of the building, but also can play a role of adjusting the temperature and ventilating in the emergency state, that is to say, can discharge dust, bacterial and the like out of the building by opening a closed port for emergently exhausting the smoke in the floor of the building under the action of negative pressure sucking force of an exhaust port at the upper part of the air layer of the building when fire happens or the bacteria are spread.

The invention discloses a waterborne inorganic heat-insulating, waterproof and environment-friendly coating for buildings and a preparation method of the coating, and relates to the technical field of building materials. The invention provides the waterborne inorganic heat-insulating, waterproof and environment-friendly coating for the buildings, which are good in heat-insulating and heat-preserving and waterproof performances, strong in bonding force and resistant to wear. The environment-friendly coating is prepared from a binding agent, a film-forming additive, a heat-reflecting filler, a heat-insulating filler and water; the preparation method disclosed by the invention comprises the following steps: weighing raw materials; adding a dispersing agent into water and uniformly stirring; adding a silicate solution, an alkyl-modified silicate solution, a silicone acrylic emulsion, a silane coupling agent and a leveling agent and uniformly stirring; adding silica aerogel, kaolin, a heat-insulting filler and an inorganic pigment and uniformly stirring; filtering to obtain waterborne inorganic heat-insulating, waterproof and environment-friendly coating for the buildings. The coating disclosed by the invention has the advantages of heat insulation, heat preservation, water resistance, good binding force with cement, tiles and metals, scratch resistance, fastness, greenness, environmental protection and the like.

A method for improving the overwintering rate of Pennisetum, which is completed by the following steps: (1) After leveling the land and applying sufficient base fertilizer, ditching is carried out, and sowing is carried out when the temperature is stable above 15°C in late April every year; (2) Leave the stubble when cutting and harvesting; (3) After cutting and harvesting, take the soil between the rows and cover the pennisetum stubble; (4) After the roots are covered with soil, cover the weeds between the stubble rows, and remove the Cover the weeds. The furrowing and sowing method of the present invention can play the role of collecting water at the bottom of the ditch and keeping warm at the bottom of the ditch, increasing the effective utilization rate of irrigation water or rainfall, and increasing the temperature of the soil layer at the root of Pennisetum pennisetum. Covering the roots with soil after harvesting can effectively protect the roots from freezing damage. Covering between ridges can maintain surface soil moisture and temperature. The pennisetum overwintering method of the present invention increases the overwintering rate to over 95%, and effectively solves the technical problem of overwintering in the introduction, popularization and application of Pennisetum genus excellent grass species in western my country.

The invention relates to a device using solar energy to generate power, in particular to a solar hot gas flow generating device which uses solar energy to enable gas to flow. The solar hot gas flow generating device comprises a heat collecting shed, a flow guiding chimney communicated with the heat collecting shed and a gas flow generator installed in the flow guiding chimney, wherein the heat collecting shed comprises a light-transmitting heat collecting shed which is positioned at the edge of the heat collecting shed and a solar vacuum tube heat collecting module which is connected with the light-transmitting heat collecting shed and is positioned in the middle of the heat collecting shed; olivary flow guiding chambers are uniformly distributed between the heat collecting shed and the ground; the flow guiding chambers and the heat collecting shed are hermetically connected, and the light-transmitting heat collecting shed and the heat collecting module are hermetically connected; and a gas flow generator I is installed in a speed increasing channel formed by the two flow guiding chambers. In the invention, the heat collecting shed comprises a low temperature region and a high temperature region, the speed increasing channel is arranged in the heat collecting shed, solar photovoltaic cells are installed on the heat collecting shed, and the waste heat of the flow guiding chimney is recycled simultaneously, thereby effectively improving the efficiency of the solar hot gas flow generating system, increasing the strength of the heat collecting shed and prolonging the service life of the heat collecting shed.

The invention discloses a barbecue oven which comprises an oven body, an oven cover used for sealing the oven body, a bottom frame used for supporting the oven body, a combustor used for combusting fuel and a feeding device used for conveying the fuel to the combustor. The combustor comprises a combustion chamber, a heating pipe, an air guide box and a fan, the heating pipe is arranged at the bottom of the combustion chamber, the fan is arranged on the box wall of the air guide box, the top of the combustion chamber is communicated with the bottom of the oven body, the bottom of the combustion chamber is embedded into the air guide box, and a ventilation opening communicated with the air guide box is formed in the combustion chamber. The feeding device comprises a hopper used for loading the fuel, a fuel guide pipe, a feeding screw rod arranged in the fuel guide pipe and a feeding motor used for driving the feeding screw rod to rotate. According to the barbecue oven, the feeding quantity of the fuel and the air volume of the fan can be automatically controlled, temperature in the oven can be changed evenly, and the heat preservation effect is good.

The invention belongs to a phase change heat collecting-heat dissipation wall system operating under full working conditions in the technical field of building energy saving. The phase change heat collecting-heat dissipation wall system comprises a glass cover plate arranged on a room window, a heat storage wall is arranged inside the glass cover plate, and a decorative plate is arranged inside the heat storage wall. A top opening of the glass cover plate communicates with the outdoor, and a double-cavity channel is formed by opening of the top end and the bottom of the heat storage wall. Thetop end and a bottom opening of the decorative plate communicate with a room, and an outdoor exhaust suction fan and an indoor air supply suction fan are separately installed at the top opening of theglass cover and the top opening of the decorative plate. A thermal insulation roller blind is installed inside the glass cover. The heat storage wall realizes winter heating and summer cooling of a phase change material with different phase transition temperatures, an outside phase change material with a perforated aluminum plate attached to the outer side and an inside phase change material surface longitudinal vortex generator by starting different operating modes in winter and summer. The phase change heat collecting-heat dissipation wall system has broad application prospects and popularization value in areas at which solar energy resources are enriched and the temperature difference between day and night is large.