32results about How to "Avoid localized overheating" patented technology

The invention relates to a method for preparing epoxidized fatty acid methyl esters by using a microchannel reactor. The method comprises the following specific steps of: preparing catalyst formic acid and concentrated hydrochloric acid in a certain proportion; pumping fatty acid methyl ester, a formic acid catalyst, and hydrogen peroxide into the microchannel reactor by using three metering pumps; and washing reaction products, separating and drying to obtain the final product epoxidized fatty acid methyl esters. The whole process is an exothermic reaction process, and peroxyformic acid and epoxidized fatty acid methyl esters are synthesized simultaneously. When the epoxidized fatty acid methyl esters are produced by the method, the temperature of the reaction process can be controlled effectively, high safety can be guaranteed, a module is good in mixing effect, and a product obtained through reaction is high in quality; and the continuous flow reaction is performed, the process is continuous, and high production efficiency is achieved.

The invention discloses a coating drying technology and device thereof. The technology is used for drying a coating by combining a microwave drying technology with a circulating air-supply type drying technology, and a mode of heating the microwave dried coating from inside to outside is combined with a mode of drying the microwave dried coating with circulating air from outside to inside so that the purpose of more rapidly thoroughly drying the coating is achieved. The coating drying technology disclosed in the invention has the characteristics of uniform heating, high drying speed, high heat efficiency, good product quality and the like; and the circulating air can be used for immediately eliminating a solvent evaporated by the coating in a microwave heating process, thus the problems of local overheating caused by high microwave heating speed and incapability of immediately eliminating the solvent is avoided, the quality of the coating is ensured, and the thorough and uniform drying effect is obtained. The device has simple structure, can obtain better drying effect of the coating, and can improve the drying speed, thereby greatly saving the production period, improving the production efficiency and being capable of effectively avoiding microwave leakage.

The invention discloses a preparation method of a graphene oxide coated carbon microsphere composite material. The method comprises the following steps: preparing a dextrose solution as a carbon source; performing hydrothermal reaction under an acidic condition; washing the obtained product in a plurality of times; performing suction filtering; drying to obtain carbon microspheres; dissolving thecarbon microspheres in a mixed solution consisting of water and absolute ethyl alcohol; then adding a mixed solution of a silane coupling agent and the absolute ethyl alcohol; performing condensing and reflowing under a room temperature or a heating condition; washing the obtained product in a plurality of times; performing suction filtering; drying to obtain modified carbon microspheres; adding graphene oxide to DMF; then adding an activating agent; ultrasonically treating to obtain a graphene oxide solution; adding the modified carbon microspheres to the graphene oxide solution; ultrasonically processing to obtain an uniform mixed solution A; adding a catalyst to the mixed solution A; performing condensing and reflowing under a heating condition; washing the obtained product in a plurality of times; and performing suction filtering and drying to obtain the graphene oxide coated carbon microsphere composite material.

The invention discloses a steam generator, a steam generator system and a household appliance. The steam generator comprises a shell, heating elements, a blocking wall and a water inlet pipe. The interior of the shell is defined by a partition wall into an outer cavity and an inner cavity which are isolated from each other. Fluid channels are defined between the outer cavity and the inner cavity and communicate with the inner cavity through communication grooves. The shell is provided with a water inlet and a steam outlet, the water inlet communicates with the outer cavity, and the steam outlet communicates with the inner cavity. The heating elements are arranged on the partition wall. The blocking wall is arranged in at least one fluid channel so as to block the flow direction of fluid, and the blocking wall is adjacent to the communication grooves. The water inlet pipe communicates with the water inlet, and the water inlet pipe extends to the other side of the blocking wall from one side, close to the communication grooves, of the blocking wall around the circumferential direction of the partition wall. According to the steam generator, the service life of the heating elements can be better prolonged, the heating efficiency of the heating elements is improved, and meanwhile the preheating time of the steam generator is shortened.

The invention relates to the technical field of catalytic chemistry, and provides a cobalt-base catalyst and a preparation method thereof. The preparation method comprises the following steps: adding a molecular sieve and silicon oxide into a cobalt salt solution, stirring to obtain suspension, drying up the solvent by distillation, drying in a drying oven to obtain a solid, and roasting to obtain the cobalt-base catalyst. By using the metal cobalt and molecular sieve as the active components of the catalyst, the molecular sieve has smaller pore size, and is not convenient for the dispersion of the reactant gas and product; the silicon dioxide, which is used as the dispersing agent of the catalyst, has the effect of dispersing the metal cobalt and molecular sieve, and performs the supporting function; and the added silicon dioxide avoids the phenomenon of local overheating, thereby enhancing the selectivity of the catalyst. The prepared catalyst for Fischer-Tropsch synthesis reaction has very high selectivity for C10-C16 hydrocarbon fractions, has higher isoalkane content, is suitable to be used as an aviation fuel, and can effectively lower the investment cost and operating cost of the device.

The invention relates to the field of hot food processing equipment, in particular to an automatic chili sauce making device. The automatic chili sauce making device comprises a chili stir-frying mechanism and a chopping and mixing mechanism, wherein the chili stir-frying mechanism comprises a stir-frying assembly, a vibrating assembly, a pot sticking preventing assembly, a material guiding funneland a material transporting plate which is horizontally arranged; two supporting feet which are arranged at intervals are arranged at the bottom of the material guiding funnel; the stir-frying assembly comprises a stir-frying pot, an enclosing compound and a mounting block; and a heater is arranged in the mounting block. The automatic chili sauce making device disclosed by the invention has the beneficial effects that through the pot sticking preventing assembly, a first material shoveling plate and a second material shoveling plate on the connecting block can scrape off chili adhered to theinner wall of the stir-frying pot; through the enclosing assembly, an outlet in a discharging box can be opened or closed, so that the situation that in the stir-frying course, the chili is dischargedfrom the outlet of the discharging box, and the chili is wasted, is avoided; and besides, through a plugging preventing assembly, the whole separating plate can be vibrated, so that discharging holesin the separating plate are prevented from being blocked.

The invention relates to the technical field of catalytic chemistry and provides an iron-based catalyst and a preparation method thereof. The preparation method comprises the following steps of: adding a molecular sieve and silicon oxide into an iron salt solution, and stirring the mixture to obtain a turbid solution; evaporating a solvent to dryness; then drying the mixture in an oven to obtain a solid; and roasting the solid to obtain the iron-based catalyst. According to the iron-based catalyst provided by the invention, by taking a metal iron and the molecular sieve as active ingredients of the catalyst, the pore diameter of the molecular sieve is relatively small, so that diffusion of reaction gas and products is not facilitated; silicon dioxide as a dispersant of the catalyst plays a role of dispersing the metal iron and the molecular sieve, and meanwhile has a supporting effect; and by adding silicon dioxide, a local overheating phenomenon is avoided, and the selectivity of the catalyst is improved. The catalyst prepared by the preparation method for Fischer-Tropsch synthesis reaction is very high in selectivity of hydrocarbon fraction, the number of carbon atoms of which is 10-16, and the content of isoparaffin is increased. The catalyst is suitable for being used as aviation fuel, so that the investment cost and operating cost of the device can be effectively lowered.

The invention relates to a heat dissipation type transformer box, which comprises a box cover, a box body and a base, the box cover is arranged on the top side of the box body, the base is arranged on the bottom side of the box body, and the box body is provided with a box door which can be opened. In that: the box body, the box cover, and the base are respectively provided with interlayers, and the interlayers are respectively provided with positioning columns for connecting the box body, the box cover, and the base, and the upper side and the lower side of the box body are respectively provided with The air outlet communicated with the interlayer, the side wall of the box body is provided with the air inlet port communicated with the outside of the box body; the beneficial effect of the present invention is: the structure design is reasonable, the air inlet port and the air exhaust port of the box body can be used in conjunction with the box The air inside the box is circulated and ventilated in a three-dimensional manner, which can fully cool down the equipment in the box, avoiding the phenomenon of local overheating of the equipment, thereby reducing the temperature in the box.

The invention discloses a power battery pack assembly suitable for a new energy electric vehicle, and relates to the technical field of new energy automobiles, the power battery pack assembly comprises a box body, a partition plate and a box cover, a storage battery pack composed of a plurality of storage batteries is arranged in the box body, and the partition plate is detachably installed in the box body; the partition plate divides an inner cavity of the box body into a first containing space and a second containing space, the storage batteries are arranged in the first containing space and the second containing space respectively, a conveying air duct communicated with the outside is formed in the inner cavity of the partition plate, and a plurality of air holes communicated with the inner cavity of the partition plate are machined in the side walls of the two sides of the partition plate. The box cover is detachably installed on the box body. The partition plate is adopted to be matched with the inner cavity of the air inducing table to serve as a conveying air duct to guarantee that cold air can be conveyed into the whole box body; internal cooling is conducted, the relatively uniform heat dissipation effect of the whole storage battery pack is achieved, and the structure is not high in implementation cost, easy to control and produce and small in occupied space.

The invention discloses a rapid thawing method for frozen fish and frozen shrimps. The specific method comprises the following steps of: A, operating a soaking thawing tank and putting a frozen fish thawing cover net down; B, pouring to-be-thawed fish into the frozen fish thawing cover net; C, introducing thawing steam into the soaking thawing tank; D, observing the thawing effect of heavily frozen fish and putting the frozen fish thawing cover net down again; E, introducing compressed air into the soaking thawing tank; and F, taking out the frozen fish and frozen shrimps which are thawed andcleaning the soaking thawing tank. The device can assist enterprises of requiring rapid thawing of aquatic products in rapidly thawing the aquatic products, so that the original thawing time of multiple hours is shortened to tens of minutes; and meanwhile, the device can remove impurities attached to most seafood products, improve the cleanliness of the thawed aquatic products, and avoid deterioration of the aquatic products caused by too long waiting time in a traditional method.

The invention belongs to the technical field of power cables, and discloses a connecting structure based on a PTC carbon heating cable. The connecting structure comprises a heating cable, a connectorand an external connection cable; a through hole is formed inside the connector, the through hole comprises a first section hole and a second section hole, and steps are arranged at the portion wherethe first section hole and the second section hole are communicated; one end of the heating cable stretches into the first section hole, one end of the external section cable stretches into the secondsection hole, and the heating cable and the external connection cable are connected at the steps; an inner cavity of the through hole is provided with a sealing layer, and a heat insulation layer isarranged at the inner surface of the sealing layer. The electricity consumption safety is improved, and the probability of electric shock and electric leakage is lowered; meanwhile, the heating efficiency of the heating cable is improved, power consumption is lowered, the phenomenon of partial heating is avoided, the service life of the heating cable is prolonged, the heating cable can automatically adjust the temperature according to changes of the surrounding environment temperature, and compared with similar products, more energy is saved; accordingly, the structure is suitable for being used and popularized.

The invention belongs to the technical field of clothes treatment equipment, in particular to clothes treatment equipment and a window mat heating system and method thereof. The window mat heating system comprises a main control board, a time relay and a heating device, wherein the main control board is used for sending a heating instruction to the time relay under the condition that the window mat needs to be heated; and the time relay is used for allowing the heating device to heat the window mat after receiving the heating instruction for a set period of time. The window mat heating systemrealizes the starting of the window mat heating through the connection of the main control board, the time relay, a socket, a plug and the heating device, and the stopping of the window mat heating through the connection with the main control board (a temperature sensor and a humidity sensor), and thus the purpose of drying the window mat more fully and uniformly on the premise of giving sufficient reaction time to users and ensuring the service life of equipment is realized.

The invention relates to a scalding device, and particularly relates to a scalding device for primary processing of agricultural products. The scalding device comprises a box body and a scalding box arranged in the box body, wherein the outer wall of the top of the box body is fixedly connected with a driving assembly for driving the scalding box to move vertically; the outer wall of one side of the driving assembly is fixedly connected with an elastic assembly for guaranteeing stability of the scalding box; a heating pipe is arranged in the box body; and the outer walls of two sides of the box body are fixedly connected with a temperature sensor and a control panel respectively. According to the scalding device, a worker can perform feeding work before scalding of the agricultural products and take materials after scalding of the agricultural products conveniently by the aid of a lifting assembly, the scalding box can be driven to move vertically during scalding work of the agricultural products, so that the agricultural products in the scalding box can be contacted with hot water uniformly and sufficiently, the scalding efficiency of the agricultural products is improved, and the scalding uniformity of the agricultural products is guaranteed.

The invention provides an array substrate, a display device and a mask plate, relates to the display technical field, and solves the problems that an insulation layer above a first power line lead isburned due to the local overheating condition on the first power line lead. The array substrate comprises a binding zone that has the first power line lead and a signal line lead; the signal line leadis arranged on one side, far away from the substrate, of the first power line lead; the binding zone also has a heat conductive pattern arranged on one side, far away from the substrate, of the firstpower line lead; the positive projection of the signal line lead on the substrate covers a portion of the positive projection of the first power line lead on the substrate; the positive projection ofthe heat conductive pattern on the substrate overlaps with the other portion of the positive projection of the first power line lead on the substrate.