75results about How to "Does not affect heat transfer" patented technology

The invention relates to the technical field of cleaning agents, particularly provides an online cleaning agent composition for heat conduction oil and a cleaning method, and aims at solving the problem that heat conduction oil cannot be cleaned in an online way. The cleaning agent composition comprises the following raw materials in parts by weight: 20 to 30 parts of base oil, 2 to 12 parts of an ashless dispersant, 18 to 28 parts of a clearing agent, 2 to 12 parts of a surfactant, and 30 to 45 parts of washing agent. According to the online cleaning method, online cleaning is performed on heat conduction oil through the cleaning agent composition, cooling is not required under the condition that a heat conduction oil system is normally operated, the cleaning agent composition is added into the heat conduction oil system, coked oil dirt on pipe walls is cleaned according to a compatibility principle, the online cleaning of the heat conduction oil is realized, the normal operation of the system is not affected, the phenomenon that pipes are blocked by dirt does not occur, the cleaning efficiency is higher than 98 percent, heat conduction can be improved, and energy consumption can be reduced.

The invention discloses an air-cooled heat pipe radiator for high-capacity SVG. The air-cooled heat pipe radiator for the high-capacity SVG comprises a substrate and a fin group which is arranged on the front surface of the substrate; the back surface of the substrate is connected with a radiator piece; a plurality of embedding grooves which are formed in parallel are formed in the front surface of the substrate; a comb-shaped heat pipe is embedded into each embedding groove; the bottom of each comb-shaped heat pipe is in contact with the radiated piece; the top end of each comb-shaped heat pipe is inserted into the fin group. The radiator has the advantages of being simple in structure, high in reliability, and capable of reducing total thermal resistance remarkably.

The invention relates to a method for preparing a large-area graphene material by adopting a suturing method. The preparation method comprises the following steps: adding graphene oxide into a conicalflask filled with one of ethylenediamine, diethylenetriamine, triethylenetetramine and paraphenylenediamine according to a mass ratio of 1 to (100 to 600); then performing dispersion for 30 to 60 minutes by using an ultrasonic dispersing machine, uniformly dispersing the solutions and instantly transferring the solutions into a three-neck flask; heating the flask while stirring, controlling a reaction temperature to be between 100 and 200 DEG C, and performing reaction for 20 to 24 hours; taking reaction solutions after the reaction is finished and uniformly coating a steel plate which is ground and smoothed in advance and is cleaned and dried by using absolute ethyl alcohol with the reaction solutions, and putting the steel plate in a baking oven to be dried for 3 hours at 120 DEG C so as to obtain a graphene film with a sutured continuous structure. According to the method disclosed by the invention, the method for suturing the micron-scale graphene oxide into the graphene film withlarge area, high heat conduction and capability of being firmly adhered on the surface of metal by utilizing a suture agent is innovatively provided.

The invention discloses a preparation method of a rotary target material comprising an adaptive buffering layer. The internal structure of the buffering layer is porous, and the exterior structure ofthe buffering layer is in a ring shape (is cylindrical). Firstly, an adaptive buffering layer of which the thickness is 1/5 to 1/7 of the thickness of a target material green body, the yield strengthis high (higher than a hot isostatic pressure), the thermal expansion coefficient is moderate (between the thermal expansion coefficient of the target material green body and the thermal expansion coefficient of a substrate), the thermal conductivity is good and the porosity factor is 30% to 40% is prepared on the surface of the substrate by adopting a thermal spraying method; and subsequently, the target material green body is prepared on the surface of the adaptive buffering layer by adopting a hot isostatic pressure method. The porous buffering layer has a mechanical self-compensation function; when the adaptive buffering layer and the target material green body are in hot isostatic pressure and cooling processes, the thermal mismatch strain, caused in hot pressing and cooling processes, between the target material green body and a substrate interface can be effectively absorbed by changes of the internal average pore diameter in the porous buffering layer, so the effect of protecting the target material from cracking is played.

The invention provides a natural defrosting low-temperature evaporation system. The natural defrosting low-temperature evaporation system comprises a first evaporator, a second evaporator, a compressor, a condenser, an expansion valve, and a fan, wherein the compressor, the condenser and the expansion valve sequentially communicate with one another, refrigerant outlets of the first evaporator andthe second evaporator are connected in parallel to an inlet of the compressor, and refrigerant inlets of the first evaporator and the second evaporator are connected in parallel to an outlet of the expansion valve; solenoid valves are arranged at the refrigerant inlets of the first evaporator and the second evaporator separately, the fan can blow air to the first evaporator and the second evaporator, and air valves are arranged on the front sides of the first evaporator and the second evaporator separately. The natural defrosting low-temperature evaporation system performs rotation work and natural defrosting through the two evaporators, the heat exchange amount of the natural defrosting low-temperature evaporation system cannot be affected during defrosting, and the failure rate is low.

The present invention relates to the technical field of air-conditioning accessories, in particular to the protective cover of an air-conditioning external unit; Shutters, left baffle; the bottom of the brace is welded to the upper part of the crossbar end of the L-shaped bracket; the right-angled sides of the side triangular plate are welded to the brace and the L-shaped bracket respectively; the two sides of the right baffle are welded to the right Between the horizontal bar and the vertical bar of the L-shaped bracket; the two ends of the reinforced square steel are respectively welded on the L-shaped bracket and the installation square steel; the bottom of the L-shaped bracket is welded on the end of the installation square steel; the bottom edge of the top baffle is welded On the connecting square steel; the two L-shaped brackets are welded through the connecting square steel; shutters are welded between the vertical bars between the L-shaped brackets; the left baffle is welded to the cross bar of the left L-shaped bracket and Between the vertical poles; the protective cover of the air conditioner external unit of the present invention can protect the air conditioner external unit from the wind and the sun, and does not affect the heat exchange of the air conditioner external unit.

The invention provides a nanometer metal ceramic coating, belonging to the field of environment-friendly coatings. The nanometer metal ceramic coating is prepared from the following raw materials in parts by weight: 20-45 parts of a nanometer ceramic filler, 20-45 parts of a binder, 5-15 parts of nanometer metal powder and 10-20 parts of water. Compared with the prior art, the nanometer metal ceramic coating has excellent corrosion resistance, high blackness, good energy-saving effect, good surface self-lubricating effect, high contamination resistance, small possibility in falling and cracking, and no influence on heat transfer of four pipes of a boiler.

The invention discloses a purifier with cleaning function, which comprises a purifier body, an instillation pipe or spray pipe and an oil-water separator, wherein the purifier body comprises a shell and a circuit board arranged in the shell, the bottom of the shell is provided with a waste liquid outlet, the top of the shell is provided with a cleaning medium inlet, the liquid inlet end of the instillation pipe or spray pipe is provided with a cleaning medium valve and a cleaning agent valve, the liquid outlet end is communicated with the cleaning medium inlet; the oil-water separating device comprises a waste liquid inlet, a waste oil outlet and a waste water outlet, wherein the waste liquid inlet is communicated with the waste liquid outlet of the purifier main body. With the adoption of the purifier, the cleaning is realized without dismounting, the whole cleaning process is convenient and fast, the cleaning time is short, and the normal heat exchanging work is unaffected basically.

The invention relates to a flue gas waste heat recovery device which comprises an outer shell, a vertical inner air duct and a circulating water system. An air inlet pipe is arranged on one side of the outer shell, an air outlet pipe and the circulating water system are arranged on the other side of the outer shell, the air inlet pipe is communicated with the vertical inner air duct, and a spiral blade is arranged in the vertical inner air duct. The spiral blade is of a spiral rising structure around a circulating water vertical pipe, and four receiving hoppers which are connected up and down are arranged in the outer shell. In industrial production, waste heat of waste gas accounts for a large amount of heat losses, high-temperature flue gas exhausted by an asphalt mixing plant contains a large amount of water vapor and carries a large amount of waste heat, the waste heat in the flue gas can be recycled, a large amount of energy can be saved, fuel is saved for subsequent stone drying, and air pollution is greatly reduced. And meanwhile, the production cost of enterprises can be reduced, and important practical significance is also achieved for meeting the strategic requirements of energy conservation and emission reduction.

A vehicle heater (10) has a main body (12) which supports a non-intrinsically safe heat conductor layer (14), and a sensor device (16, 18, 20) assigned to the heat conductor layer (14) and provided to detect if a temperature threshold is exceeded. The sensor device (16, 18, 20) comprises a sensor layer (16) which is arranged on the side of the heat conductor layer (14) facing away from the main body (12) and which is monitored with respect to current flows that may occur substantially in the direction of the surface normal (42) of the sensor layer. In a method for producing a vehicle heater (10), a main body (12) of the vehicle heater (10) is equipped with a non-intrinsically safe heat conductor layer (14) and a sensor device (16, 18, 20) for detecting if the temperature threshold is exceeded. A sensor layer (16) is assigned to the heat conductor layer (14) on the side of the layer facing away from the main body (12) to form the sensor device (16, 18, 20) and is provided to monitor current flows which may occur substantially in the direction of the surface normal (42) of the sensor layer (16).

The invention relates to a soaking plate structure. The soaking plate structure comprises an upper shell plate and a lower shell plate which are buckled together, wherein a support structure is arranged between the upper shell plate and the lower shell plate; the support structure is coated with the upper shell plate and the lower shell plate; a lower surface of the upper shell plate is fixedly connected to an upper surface of the support structure; an upper surface of the lower shell plate is fixedly connected to a lower surface of the support structure; the support structure comprises a porous structure layer; the porous structure layer is made from a porous material; and the porous material has a pore density of 5-30ppi and a porosity of 80%-99%. The porous material with a low pore density and a high porosity is taken as the support structure of a soaking plate, and the structure is uniform in support point position distribution, high in density, reliable in support effect, free from influence on heat transfer performance of the soaking plate, capable of being used for manufacturing soaking plates with various shapes, simple to produce, low in cost, and suitable for batch production.

The invention relates to a technology for corrosion protection of metal pipes, and in particular relates to a metal pipe anticorrosive film and a preparation process and a film plating process thereof. The invention discloses a metal collector slab core diversion pipe anticorrosive film and a preparation process and a film plating process thereof, wherein the anticorrosive film is prepared from the following components in parts by weight after mixing: 15 to 25 parts of polytetrafluoroethylene emulsion, 1 to 2 parts of sodium polyacrylate, 6 to 10 parts of shellac, 15 to 20 parts of absolute ethyl alcohol and 40 to 60 parts of water. The metal collector slab core diversion pipe anticorrosive film has good corrosion resistance, and can protect metal pipes while heat transfer is not influenced.

The invention relates to the field of thermal management of power batteries, and discloses a power battery liquid cooling device. The power battery liquid cooling device comprises battery packs, battery sleeves, pulsating heat pipes and a cooling passage with coolant inside. The battery packs are respectively arranged in the battery sleeves. The evaporation section of each pulsating heat pipe is connected with the outer walls of the corresponding battery sleeves, and the condensation section of each pulsating heat pipe is connected with the cooling passage. The invention also discloses a working method of the power battery liquid cooling device. The beneficial effect is as follows: through reasonable design of the arrangement of the battery sleeves and the pulsating heat pipes, the thermalresistance of the liquid cooling device of the battery packs is reduced, the arrangement of the cooling passage on a single side of the battery packs is realized, and the temperature and temperatureuniformity of the battery packs can be well controlled.

The invention relates to a hexagonal heat insulating furnace pipe of a combustion furnace. The hexagonal heat insulating furnace pipe is characterized in that a furnace pipe body (1) is composed of embedded strips (2), connecting blocks (3), a heat insulating layer (4), inner pipe heat insulating blocks (5) and a furnace wall single layer (6), and the furnace pipe body (1) is a hollow hexagonal cylinder body; and the furnace pipe body (1) is a hexagonal cylinder body formed by mutual connecting of the six connecting blocks (3) and the embedded strips (2). A body of a triangular heat insulatinglayer (4) formed by the inner pipe heat insulating blocks (5) are attached to the inner angles of the hexagonal cylinder body, and the furnace pipe body (1) is mounted on the combustion furnace The hexagonal heat insulating furnace pipe of the combustion furnace is simple in structure and convenient to operate.

The invention provides a thin film thermoelectric power generation and selective absorption coating coupled solar collector tube. The solar collector tube comprises a metal tube and a cover glass tube; the outer wall of the metal tube is successively provided with a first insulating layer, a PN junction layer, a second insulating layer and a selective absorption coating; the PN junction layer is connected with an extraction electrode; the two ends of the cover glass tube are each fused with a Kovar metal sleeve; the Kovar metal sleeves form a vacuum sandwich by forming a sealed connection withthe outer wall of the metal tube through a corrugated tube assembly; a wire connected with the extraction electrode forms a zigzag section in the vacuum sandwich; the tail of the zigzag section is led out of the cover glass tube through direct sealing or through a transition material. The solar collector tube especially applies to a trough solar collector tube which can make the temperature difference between the two temperature zones reach 10-50 DEG C. Therefore, the natural temperature difference of the trough solar collector tube can be fully utilized to realize thermoelectric power generation, and there is no need to actively dissipate heat in the low temperature zone.

The invention relates to a bagasse-fired boiler which can ensure the smooth operation of the boiler, save resources, improve the utilization rate of the resources and protect the environment. The technical scheme is as follows: the bagasse-fired boiler comprises a furnace chamber, a feeding device, a grate, boiler drums, a tail flue, a superheater chamber, a soot blower and a boiler steel frame, wherein the grate is arranged at the lower part of the furnace chamber, the feeding device is arranged at the front part of the furnace chamber, the furnace chamber, the superheater chamber, the boiler drums and the tail flue are sequentially communicated, and the bagasse-fired boiler is characterized in that the grate is a water-cooled fixed grate specifically, the boiler drums are double boiler drums specifically, the double boiler drums are communicated through a convection bank, and the feeding device is arranged on the upper inclined side of the water-cooled fixed grate.

The invention discloses a copper plate of a crystallizer of a high-efficiency continuous casting machine. The copper plate comprises a copper plate body and a plurality of transverse cooling channelslongitudinally formed in the copper plate body at intervals; each transverse cooling channel comprises a transverse cold water hole transversely drilled in the copper plate body, a middle water hole formed in the middle of a cold surface, side water holes formed in the cold surface and located on two sides of the middle water hole as well as screw plugs fixed to the end openings of the transversecold water hole in a sealed manner, and the middle water hole and the side water holes communicate with the transverse cold water hole. According to the copper plate, the transverse cooling mode is adopted, uniform cooling is realized with the mode, with increase of the water inlet and outlet holes, the flow of cooling water can be substantially increased, the cooling effect can be improved, and essential conditions for the high casting speed can be realized.

The invention discloses an artificial leather boiler heat-conducting oil on-line detergent and a preparation method thereof. The detergent is prepared from the following raw materials in percentage by weight: CNOOC 150SN, base oil, dialkenyl succinimide, polyisobutenyl succinimide, high-molecular-weight succinimide, high-molecular-weight phenolic antioxidant, octyl/butyl diphenylamine antioxidant and defoaming agent. The detergent implements non-shutdown on-line cleaning in deed, has the advantages of low addition amount and more obvious cleaning effect, can dissolve the solid oil coke, can improve the heat conductivity and can lower the energy consumption, and the cleaning efficiency is up to higher than 98%. The detergent has the characteristics of mild cleaning property and high operational safety, does not influence the normal operation of the system, and does not have the phenomenon of tube blockage by dirt.