34results about How to "Heat preservation" patented technology

The invention discloses a flame-retardant thermal insulation material and a preparation method thereof. The flame-retardant thermal insulation material consists of a base material layer and inorganic material layers on both surfaces of the base material layer, wherein the base material layer comprises phenolic resin, closed cell perlite, a surfactant, a foaming agent and a curing agent; and both surfaces of the base material layer are provided with the inorganic material layers with the thickness of between 0.5 and 1.5mm respectively. The preparation method comprises the following steps of: mixing and stirring the phenolic resin with all the additives; mixing with the closed cell perlite; warming, foaming and curing the mixture in a mold; and compounding inorganic materials on both surfaces of a phenolic board. The flame-retardant thermal insulation material has the advantages of light weight, high strength, low thermal conductivity, high flame retardance and thermal insulation property and low cost, wherein the thermal conductivity reaches 0.030 W/m.K; the oxygen index reaches 49.5; and the flame-retardant thermal insulation material belongs to a level A flame-retardant thermal insulation material. The cost is reduced by 30 to 40 percent compared with that of phenolic foam boards without the closed cell perlite.

The invention provides a continuous casting anti-blocking submersed nozzle which comprises a nozzle body. An inner cavity of the nozzle body is cylindrical, and an inlet of the nozzle body is formed in the top of the nozzle body. A nozzle slag line is arranged in the middle of the nozzle body, and two discharging holes are symmetrically formed in the side wall, close to the bottom of the nozzle body, of the nozzle body. The discharging holes are inclined downwards from the inside to the outside of the nozzle body. The continuous casting anti-blocking submersed nozzle can be widely used for a continuous casting steel production procedure, secondary oxidation of molten steel is reduced, and stable and continuous casting is achieved. In order to improve the corrosion resistance of the slag line, corrosion-resistant BN is added to the slag line of the nozzle, and produced corrosion products cannot pollute the molten steel and cannot be caked. Argon is blown into the nozzle, and caking is avoided.

The invention provides a photovoltaic mounting rack, a photovoltaic system and a photovoltaic roof, and belongs to the technical field of photovoltaic power generation. The photovoltaic mounting rack comprises a plurality of photovoltaic frames, the photovoltaic frames are used for fixing photovoltaic panels, each photovoltaic frame comprises an upper frame and a lower frame which are oppositely arranged in a first preset direction, and the upper frames and the lower frames are used for being fixed to the upper sides and the lower sides of the photovoltaic panels in the first preset direction respectively. In the first preset direction, the lower frame of one photovoltaic frame and the upper frame of another adjacent photovoltaic frame are in lap joint and define a transverse water guide groove extending in the second preset direction, and the second preset direction is perpendicular to the first preset direction. According to the photovoltaic mounting rack adopting the structure, rainwater permeating from the joint of the two adjacent photovoltaic frames can enter the transverse water guide grooves and is discharged through the transverse water guide grooves, so that a photovoltaic system with the photovoltaic mounting rack can have a better water leakage prevention effect, and the water leakage risk of the photovoltaic system is reduced.

The invention relates to heat-preserving equipment for a microbial oil-dispelling deblocking agent. An electric heater and an electric heater heating power supply storage battery are arranged at the bottom of a microbial oil-dispelling deblocking agent container; and the electric heater is externally connected with a temperature sensor with a communication port, an electric heater driver and a microcontroller, so that heat-preserving treatment on the microbial oil-dispelling deblocking agent is realized.

The invention discloses an integrated solar roof, comprising a waterproof thermal insulation structure layer and a solar module layer arranged on the upper side of the waterproof thermal insulation structure layer. The waterproof thermal insulation structure layer and the solar module layer are fixed by support structures arranged therebetween, a spacing interval layer is arranged between the waterproof thermal insulation structure layer and the solar module layer, the solar module layer comprises multiple irradiation conversion modules, multiple waterproof traversing holes are formed in the waterproof thermal insulation structure layer, and the irradiation conversion modules are integrally connected through an integrally connecting pipeline in the waterproof traversing holes. The integrated solar roof has the functions of waterproofness, thermal insulation, photopermeability, sunshading and structural support, and further the integrated solar roof can realize photo-thermal and photo-electricity irradiation conversion, and meets the requirements for hot water, heating and power supply of buildings.

The invention provides a heat-insulating welding type slag ladle and a production method thereof. The heat-insulating welding type slag ladle comprises a ladle body which is formed via welding, lifting lungs welded to the upper part of the ladle body, and support shafts welded to the middle part of the ladle body, wherein a heat insulating layer is applied to the outer surface of the ladle body, vent pipes are buried in the heat insulating layer, and the end of each of the vent pipes is exposed to external environment. A heat insulating material is applied to the outside of the ladle body, sothat the effects of performing heat insulating on slag materials, maintaining the fluidity of the slag materials, and enabling the slag materials to be convenient to dump can be achieved. In addition,different heat insulating properties are needed for the slag materials at different positions, so that the outer surface of the ladle body is divided into a plurality of grids, and for the heat insulating material in each of the grids, the thickness of the heat insulating material can be set as needed, and different heat insulating requirements can be met.

The invention discloses a multi-return gas boiler, comprising a housing, a heating device arranged in the housing, and a water storage space formed between the heating device and the housing. The shell comprises a water inlet, a smoke exhaust, and a steam outlet located at the top of the shell. A heat device includes a combustion chamber dispose at that bottom of the housing, a first cigarette collecting box located above the combustion chamber, a second cigarette collecting box located between the combustion chamber and the first cigarette collecting box, a third smoke collecting box locatedabove the first smoke collecting box, wherein the combustion chamber is communicated with the first smoke collecting box through a first pyrotechnic pipe, the first smoke collecting box is communicated with the second smoke collecting box through a second pyrotechnic pipe, the second smoke collecting box is communicated with the third smoke collecting box through a third pyrotechnic pipe, and thethird smoke collecting box is communicated with a smoke exhaust port; The combustion chamber is provided with a combustion device. The invention has the advantages that the special structural design increases the flow length of the hot smoke, increases the contact area between the hot smoke and the water, makes the steam generation speed faster, and improves the heating efficiency of the boiler atthe same time.

The invention relates to the field of automobile part casting, in particular to a casting ladle used for transferring molten aluminum. The casting ladle is capable of being heated, and comprises a casting ladle body and a casting ladle cover covering the casting ladle body. A burner is arranged on the casting ladle cover and is internally connected with a breather pipe and a ventilation pipe. The breather pipe is connected with a fuel gas vessel to provide combustible gas for the burner. The ventilation pipe is connected with an air blower to provide combustion-supporting air for the burner. The casting ladle further comprises a lead screw fixedly connected with a wall through a fixing clamp. A lead screw lifter is arranged at the lower end of the lead screw. A support is arranged on the lead screw. The support is integrally formed through a metal material and is connected with the lead screw through a lead screw nut. The support is provided with a fixing bolt. The fixing bolt is connected with the casting ladle cover through an iron chain. The casting ladle can achieve the multi-layer heat preservation function for the molten aluminum inside the casting ladle and prevent the molten aluminum from being rapidly cooled.

The invention discloses a pair of uterus warming underpants, comprising an underpants body, an insulation ring and an independently arranged uterus warming paste, wherein the underpants body comprises a waist opening end, the insulation ring is connected with the waist opening end of the underpants body, the uterus warming paste is arranged at the front surface of the inner part of the insulation ring and towards lower abdomen, and the surface, being in contact with the insulation ring, of the uterus warming paste is coated with colloid. Through the way, the uterus warming underpants has the advantages of being novel in structure, capable of warming waist and lower abdomen, heating and insulating, and promoting blood circulation to remove blood stasis, comfortable to wear, good in air permeability, attractive and fashionable in appearance, firm in fixation, safe for protection, convenient and practical, and the like, and has wide market prospect in the popularization of the uterus warming underpants.

The invention relates to a heat-preserving method for a microbial oil-dispelling deblocking agent. A microcontroller enables a temperature sensor to acquire the temperature of the microbial oil-dispelling deblocking agent conducted by a microbial oil-dispelling deblocking agent container; and when the temperature is below 0 DEG C, the microcontroller starts an electric heater driver through a communication port to switch on an electric heater heating power supply storage battery to supply heat till the temperature reaches above 0 DEG C, so that heat-preserving treatment on the microbial oil-dispelling deblocking agent is realized.

The invention discloses a processing technology of torreya grandis fruits, which comprises the following steps: washing picked fresh torreya grandis fruits, and removing aril to obtain torreya grandis fruits; the preparation method comprises the following steps: washing aril residues on the surfaces of torreya grandis fruits, drying in the air, frying at 130-140 DEG C for 10-15 minutes, and squeezing at 50-60 DEG C for multiple times to obtain squeezed liquid; heating the squeezed liquid to 75-85 DEG C, then stirring and adding a separating agent, uniformly mixing, standing for 2-3 hours, and separating to remove lower-layer precipitate and solution, so as to obtain upper-layer torreya grandis crude oil; heating the torreya grandis crude oil to 70-80 DEG C, then adding a purifying agent, uniformly stirring and mixing, then cooling to 30-35 DEG C, and filtering to obtain the torreya grandis oil. The method overcomes the defects in the prior art, simplifies the processing technology of torreya grandis fruits, does not need high-temperature stir-frying in the processing process, and avoids damage to effective components in kernels.

The invention discloses sulphate aluminium cement and a preparation method thereof, and relates to the field of building materials. The sulphate aluminium cement comprises the following components in percentage by mass: (1) 50.0%-70.0% of sulphate aluminium cement clinker, (2) 3.0%-8.0% of alginate fiber, (3) 10.0%-25.0% of ferro-alloy slag, (4) 5.0%-15.0% of boron slag, (5) 5.0%-10.0% of pulverized fuel ash, and (6) 2.5%-5.0% of gypsum. The preparation method of the sulphate aluminium cement comprises the following steps: (1) preparing materials, (2) grinding, and (3) pulverizing. The sulphate aluminium cement has the characteristics of being high in hardening rate and high in early strength, and besides, the condition that the long-term strength of the sulphate aluminium cement is reduced greatly is avoided, and the service life of the sulphate aluminium cement is prolonged. Besides, the preparation method for the sulphate aluminium cement, provided by the invention, adopts primary grinding and mixed pulverizing processes, the granularity of the prepared sulphate aluminium cement is relatively small, the specific surface area is relatively large, and the performance is stable.

The invention relates to the field of topcoats, and in particular relates to a carbon crystal topcoat. The carbon crystal topcoat comprises the raw materials of carbon crystal powder and transparent resin. The carbon crystal topcoat is widely used in the manufacture of the top coats, can solve the defects of low ignition point, no waterproofing, poor hardness, no wear resistance, no fouling resistance, large odor, easy crack due to thermal expansion and contraction, and the like of domestic and foreign existing top coats.