88results about How to "Improve reflow effect" patented technology

The invention discloses a vapor chamber and a method for manufacturing the same. The vapor chamber is simple in structure, low in cost and good in heat conduction effect and can be manufactured easily and conveniently. The vapor chamber comprises a heated plate and a flat heat dissipation plate. A groove is formed in the inner surface of the heated plate, the flat heat dissipation plate is welded with the heated plate, a vacuum inner cavity is formed between the heat dissipation plate and the groove, working media are filled in the vacuum inner cavity, a part, which is positioned in the vacuum inner cavity, of the heated plate is provided with capillary structure layers, and elemental metal powder is sintered to form each capillary structure layer. The vapor chamber and the method have the advantages that the vapor chamber is simple in manufacture, and the working media on evaporation and condensation zones can be quickly adsorbed by the capillary structure layers, so that high-speed circulation and fast heat conduction effects can be realized; support columns with capillary structures are further arranged in the vacuum inner cavity, accordingly, a condensed vapor backflow effect is obvious, and a sinking or cracking deformation phenomenon of the vapor chamber due to excessively high temperature or external pressure is further prevented; heat can be dissipated evenly by the aid of the vapor chamber, heat resistance of the vapor chamber is reduced, the method for manufacturing the vapor chamber is simple, processes are few, operation is easy, the cost is low, and the vapor chamber and the method are suitable for automatic, intensive and large-scale production.

The invention provides a steam valve and an electric cooker comprising the steam valve. According to the invention, the steam valve comprises a valve body (10), a valve cap (30) and a valve seat (20), wherein the valve body (10) is provided with an air outlet (101) opening upwards; the valve cap (30) is arranged at the upper end of the valve body (10) and provided with an opening corresponding to the air outlet (101); the valve seat (20) is arranged at the lower end of the valve body (10); the bottom of the valve seat (20) is provided with an air inlet (201); and the air inlet (201) is provided with a returnable air retainer. According to the invention, the steam valve can effectively break foams, has good anti-spilling effect and can allow pressure difference to be generated inside the electric cooker so as to increase the cooking mouthfeel of rice. According to the invention, the electric cooker comprises the steam valve.

The invention relates to a cylinder type integrated sewage treatment device which comprises a reaction tank, a filtering membrane set, a suction pump, a plurality of bubble releasers, an air dissolving system and a stirrer, wherein the reaction tank has a cylinder structure; the reaction tank is divided into a mixing area, a settling area, a flow guiding area and a filtering reaction area from center to periphery in turn; a stirring blade is arranged in the mixing area; the stirring blade is used for floating the sludge flowing back from the bottom of the settling area and the filtering reaction area; the micro-flocculated grains, which are newly generated in the manner of mixing the colloid, oil, suspended solids and coagulant in sewage, can be quickly adsorbed to the suspending sludge and then enter into the settling area for settling; the sewage treatment device has an excellent sludge refluxing effect and low energy consumption of water flow; the bubble releasers are distributed at the bottom of the filtering reaction area; the filtering membrane set is distributed in the filtering reaction area; the suction pump is connected with a water draining end of the filtering membrane set through a pipeline and is used for pumping the treated water; and the discharged water is high in quality and the effect is excellent.

The invention relates to an ultra-thin flat heat pipe and a manufacturing method thereof. A wick comprises a porous medium bottom layer and a plurality of porous medium filaments arranged side by side; the porous medium filaments make contact with the top of a tube shell; the wick inside the heat pipe, a sharp angled area between the porous medium filaments and the upper surface of the tube shell, and a sharp angled area between the porous medium filaments and the porous medium bottom layer provide liquid return capillary driving force which is large enough in a limited space; spaces formed between the porous medium filaments provide steam flow channels, and the steam flow channels communicate with one another; and reasonable matching of vapor-liquid phase distribution is achieved, and steam and condensed liquid can flow easily. According to the ultra-thin flat heat pipe, efficient operation can be maintained at various angles, the performance of anti-gravity operation is excellent, the heat flux which can be borne by the heat pipe is high, and the heat transfer performance of the heat pipe is remarkably improved after further modification treatment.

The invention relates to the technical field of boiler combustion, and in particular discloses a deep peak-shaving combined stable combustion burner. The deep peak-shaving combined stable combustion burner includes a pulverized coal pre-combustion chamber arranged horizontally and connected to the furnace, and is characterized in that: a primary air chamber is arranged at the end of the pulverized coal pre-combustion chamber, and a primary air chamber is connected to the primary air chamber. The pipe is also provided with a primary air pulverized coal mixture inlet, a secondary air chamber coaxial with it is arranged outside the primary air chamber, an oil combustion cylinder is arranged axially inside the primary air chamber; a tertiary air chamber is arranged outside the pulverized coal pre-combustion chamber, The tertiary air chamber is connected to the furnace. The invention has simple structure and stable operation, which is conducive to the stable operation of the boiler at low load, and the minimum stable combustion composite can be stabilized at 0-40% BMCR without oil input, no powder accumulation and coking in long-term operation, less maintenance in the later period, and is conducive to energy saving and environmental protection .

The invention discloses a daily chemical production device with a distillation function and a rapid discharging function and a daily chemical production method, belonging to the technical field of chemical production. The daily chemical production device comprises a distillation tower body, wherein a condensation mechanism with a fractional condensation function is installed at the middle portion of the distillation tower body; a scraping mechanism used for scraping a discharged material is arranged in and connected with the condensation mechanism; a reflux mechanism for reflux processing of vaporous distillate is arranged at the top of the distillation tower body; a spraying mechanism is further connected to the lower part of the reflux mechanism; a cover plate is arranged on one side of the lower part of the distillation tower body; a heating kettle is in transmission connection with the bottom of the distillation tower body; the cover plate is used for accommodating the heating kettle to feed and discharge materials; and a discharging mechanism is arranged on one side of the distillation tower body and is positioned at the bottom of the condensation mechanism. According to the daily chemical production device disclosed by the invention, the heating kettle is arranged in the distillation tower body, a heat exchange pipe is used for cooling and condensing internal steam, and the condensed distillate is scraped to fall into a discharge box, so distillate discharge efficiency can be remarkably improved, and discharge difficulty is reduced.

The invention discloses a mechanical seal device of a rotor pump. The mechanical seal device of the rotor pump comprises a rotary shaft (2), a seal seat (3), a moving ring (4), a static ring (5) and a spring (6), wherein the rotary shaft (2) is arranged on a pump body (1); the seal seat (3) is fixed on the end surface of the pump body (1); the static ring (5) is arranged out of the rotary shaft (2); the static ring (5) is peripherally limited into the seal seat (3); the spring (6) is arranged out of the rotary shaft (2), one end of the spring (6) butts against the static ring (5), and the other end of the spring (6) butts against the inner end surface of the seal seat (3); the end surface of the static ring (5) is pressed and matched on the end surface of the moving ring (4) through the spring (6); and an empty cavity between the moving ring (4) and the pump body (1) is communicated with a low-pressure area of a cavity body of the pump body for containing two rotors through a backflow channel. The mechanical seal device of the rotor pump can increase the seal effect of the moving ring and the static ring and can prolong the service lives, and meanwhile also can increase the cooling effect to the moving ring and the static ring.

The invention discloses a heat pipe. The heat pipe comprises a pipe casing as well as a pipe core composed of first flow channels with liquid phase medium and second flow channels with gas phase medium and arranged in the pipe casing, wherein the pipe core comprises a first pipe section and a second pipe section; in the first pipe section, the second flow channel is wrapped by the first flow channel; and in the second pipe section, the first flow channel and the second flow channel are arranged in parallel. The heat pipe provided by the invention can effectively reduce flow resistance of steam through the improvement of the structure arrangement of the pipe core; an excellent heat dissipation capacity is obtained, while the overall size of the heat pipe can be controlled to the largest extent, so that the possibility for realizing excellent heat dissipation of high-performance notebook computers as well as the application of the heat pipe to tablet computers with smaller space is reliably guaranteed. On the base of the heat pipe, the invention further provides electronic equipment employing the heat pipe and a processing method of the heat pipe.

The invention discloses a flat type heat pipe and a manufacturing method of the flat type heat pipe. The flat type heat pipe comprises a pipe body, an evaporation section and a condensation section, the evaporation section and the condensation section are arranged at the two ends of the pipe body respectively, a compound sintering capillary structure is arranged in a pipe chamber of the pipe body, the compound sintering capillary structure comprises metal wires and a metal mesh, the metal mesh is arranged on an inner circumferential face of the pipe body of the evaporation section, and the metal wires are arranged along one side face of the axial inner circumferential face of the pipe body in a circumference mode. The flat type heat pipe can effectively ensure the fact that steam flows back to the condensation section when the heat pipe is flattened to be quite thin, can effectively ensure reliability of production of the heat pipe, and further improves efficiency of heat conduction of the heat pipe.

The invention discloses a soft solder mounting rail unit which comprises a rail body and a plasma cleaning machine. A plurality of hydrogen-nitrogen protecting gas connectors are arranged on the two sides of the rail body. The plasma cleaning machine is provided with a plurality of pipelines. The multiple pipelines communicate with the multiple hydrogen-nitrogen protecting gas connectors correspondingly. Through the structural design, the plasma cleaning machine removes contaminants on the surface of a bare copper framework at the station before the mounting procedure, and conducts reduction and deoxidation on the surface of the bare copper framework containing oxidation elements, the cleanliness of the surface of the bare copper framework is improved in the solder mounting process, and the backflow performance of solder is improved. Meanwhile, through the plasma cleaning machine, the cleanliness of the surface of the bare copper framework is improved, then the requisite amount of hydrogen is decreased, the production cost is reduced, and meanwhile, the safety of the production process is improved.

The invention discloses a method and device for producing electronic grade phosphorus oxychloride. The method comprises the following steps of: (1) putting technical grade phosphorus oxychloride into a container, adding a sodium bromide or hexadecyl trimethyl ammonium bromide additive into the container, uniformly stirring and conveying the mixture into a high-position storing tank through a conveying pump; (2) introducing the phosphorus oxychloride in the high-position storing tank into a sub-boiling distiller for performing sub-boiling distillation; (3) introducing a distilled product obtained in the step (2) into a half-finished product storing tank; (4) introducing the half-finished product in the storing tank into a rectifying tower; (5) boiling the half-finished product in the rectifying tower in the step (4) and performing total reflux, wherein high-boiling-point impurities are left in the rectifying tower; (6) introducing a phosphorus oxychloride cut fraction into a finished product storing tank, oxidizing, reflowing into the rectifying tower, and performing complete gas-liquid mass transfer separation; and (7) introducing the phosphorus oxychloride product in the finishedproduct storing tank into a filter in a clean room for filtering to obtain the colorless and transparent electronic grade phosphorus oxychloride. According to the method and the device, the defects of the prior art can be overcome.

The invention provides a piezoelectric inkjet printing spray head structure preventing ink backflow. An ink supply channel is connected with an ink box. Due to capillary force action, the ink supply channel, a flow limiting part, a pressure generation cavity and a flow guide part are full of ink sequentially, and the ink reaches a nozzle. An upper electrode, piezoelectric ceramics, a lower electrode and a vibration plate form a driving element, when the upper electrode and the lower electrode are electrified simultaneously, the piezoelectric ceramics deform due to an inverse piezoelectric effect, then the vibration plate is driven to deform, the vibration plate deforms to extrude the ink in the pressure generation cavity, the flow limiting part and the flow guide part prevent the ink fromflowing back to the ink supply channel, and the ink is sprayed out from the nozzle. The piezoelectric ceramics are used for the piezoelectric inkjet printing spray head structure, the driving elementgenerate driving force, removing machining is conducted on the base part corresponding to the pressure generation cavity, and the driving element is in a suspension state and is located in the e pressure generation cavity. The piezoelectric inkjet printing spray head structure is simple in manufacture process, low in cost and good in process repeatability and has an ink backflow prevention effect.

The invention provides a planar super-conduction heat pipe. The planar super-conduction heat pipe comprises a closed shell, liquid absorption cores formed in the shell, and multiple steam passageways formed in the liquid absorption cores. The planar super-conduction heat pipe is characterized in that each steam passageway is composed of two symmetric arch-bridge-shaped pore ducts. A preparation method specifically includes the steps that 1, brass powder is ultrasonically cleaned at least three times with distilled water or high-purity water, each process is conducted for at least 20 min, chloride ions and sulfate radicals in the brass powder are removed, and the purity of the brass powder is more than 99.9%; 2, the completely-cleaned brass powder is injected into a planar super-conduction heat pipe with a core rod fixed, and even vibration is carried out; 3, the planar super-conduction heat pipe filled with the powder is fixed to a support and placed in a hollow protective sintering furnace to be sintered, and the planar super-conduction heat pipe is sintered for at least 3 hours at the constant temperature of 950 DEG C. Compared with the prior art, the heat conduction capacity is excellent, the super-conduction capacity of the planar super-conduction heat pipe is 5-10 times and even more that of market products, and great market prospects are achieved.

The invention discloses a sludge sedimentation pipe device capable of freely adjusting sedimentation time and a using method thereof. The sedimentation pipe device comprises a sedimentation pipe mainbody, a water outlet on the side wall of the sedimentation pipe main body, a water inlet pipe capable of adjusting the water inlet height, and a mud discharge port at the lower part of the sedimentation pipe gradually changes from thick to thin according to a smooth curve. When an amount of deposited sludge is large, the height of the water inlet pipe is increased; when the amount of the sludge tobe precipitated is small, the height of the water inlet pipe is reduced. When the height of the water inlet pipe is adjusted, different sludge sedimentation time can be controlled by draining water from water outlets with different heights, sludge particles with a higher sedimentation speed are retained, the sludge with a poor sedimentation performance is discharged out of the sedimentation pipe,so that the sludge with a good sedimentation performance is obtained.One end of a sludge reflux pipeline is connected with the bottom of the sedimentation pipe, the other end of the sludge reflux pipeline is connected with a water treatment reactor, an inlet of a sludge discharge pipe is positioned at the bottom of the sedimentation pipe, and the sludge is refluxed to a anaerobic zone of a continuous flow reactor, so that the denitrification and dephosphorization effects of the reactor is guaranteed, and the water quality after sewage treatment is improved.

The invention belongs to the technical field of exhaust gas emission equipment in the field of oil fields, chemical engineering, metallurgy and medicine, and particularly relates to a liquid return preventing chimney. The chimney comprises a chimney fixed part, a chimney detachable part and a fastener. The chimney detachable part is fixed to the upper portion of the chimney fixed part through the fastener. The problems that chimney wall congealed liquid flows back and operation sites are polluted according to a traditional chimney are solved, and the liquid return preventing chimney has the advantages that the effect of preventing chimney wall congealed liquid backflow is achieved, assembly and disassembly are convenient, and conveying is convenient.