71results about How to "Uniform heat transfer effect" patented technology

The invention relates to a heat exchanger comprising an inlet collecting pipe, an outlet collecting pipe and a plurality of heat radiation pipes. After extending into the inlet collecting pipe and the outlet collecting pipe, two ends of each heat radiation pipe are sealed and fixed. The air flows past the outer surfaces of the heat radiation pipes from one direction and undergoes heat exchange with refrigerant in the micro channels of the heat radiation pipes. The lengths of the heat radiation pipes extending into the inlet collecting pipe at the side close to the air inlet direction and at the side close to the air outlet direction are different. The liquid refrigerant proportion in the refrigerant entering the micro channels of the heat radiation pipes at the side close to the air inlet direction is higher than that in the refrigerant entering the micro channels of the heat radiation pipes at the side close to the air outlet direction. By means of reasonably designing end structures of the heat exchange pipes, when the heat exchanger is in the evaporation condition, the refrigerant in different statuses entering the micro channels of the heat radiation pipes can be reasonably distributed so that the energy carried by the refrigerant can be well utilized and all the micro channels in the heat radiation pipes can achieve relatively balanced heat exchange.

The invention provides a heat exchange tube and a burner with a spiral flat tube self-preheating device. The heat exchange tube is a twisted spiral flat tube; the spiral flat tube comprises a spiral flat tube main body with a flatly tubular section and a spiral flat tube end connected with the spiral flat tube main body; and the section of the spiral flat tube end is round. The burner at least comprises a smoke chamber, and a heat exchange tube which is used for accommodating a gas to be preheated and arranged in the smoke chamber; and the heat exchange tube is the heat exchange tube provided by the invention. The invention is simple in operation, reliable and stable in running, and higher in heat exchange efficiency.

The invention discloses a dithioformate containing wastewater treatment device. Dithioformate containing wastewater has large physiological toxicity to microorganisms, and is extremely unfavorable forbiochemical reactions. The dithioformate containing wastewater treatment device provided by the invention comprises a filtering module, a reaction module, a condensation and recovery module, a firstmixing module, a second mixing module, a heating module, a blow-off module, an elution module, a first detection flow channel, a first pH detector, a second detection flow channel and a second pH detector, wherein the reaction module comprises a reaction pool, a nitrogen storage tank, a fourth on-off valve, a bottom aeration pipe, a baffle plate group, a molecular sieve placement box, a folded plate aeration pipe and a partition plate group; and the condensation and recovery module comprises a condensation tower, a nitrogen liquefaction device, a spiral pipe, a fifth on-off valve and a carbondisulfide collection box. The dithioformate containing wastewater treatment device provided by the invention can independently separate dimethylamine and carbon disulfide from the dithioformate containing wastewater, reduces the pollution degree of wastewater, and greatly improves economic benefits at the same time.

The invention relates to the technology of efficient heat-transfer energy-saving heat exchange equipment in mechanical equipment engineering, in particular to a wave-toothed fin casting plate-type air pre-heater. A baffling fin casting plate-type air pre-heater comprises a plurality of casting fin plate heat exchanging units. Each casting fin plate heat exchanging unit comprises a base board and a fin set arranged on the base board. Each fin set arranged on one base board comprises baffling fins. A base body of each baffling fin is perpendicularly and/or obliquely arranged on one base board. The base body of each baffling fin is at least continuously bent for once so that a flow guiding portion and at least one section of baffling portion which are sequentially connected can be formed. The bent directions of the adjacent baffling portions are reversed. Compared with the prior art, the baffling fins of the baffling fin casting plate-type air pre-heater change the direction of airflow along with the bent change of the baffling portions, when a large flow of air or smoke flows through the baffling fins at high speed, strong scratching motion is generated so that a turbulent flow can be generated, and therefore, stable laminar flows are prevented from being generated on the surfaces of the baffling fins, so that the heat transfer effect is good.

The invention discloses a heat exchanger assembly and an indoor unit of an air conditioner, wherein the heat exchanger assembly is used for the indoor unit of the air conditioner. The heat exchanger assembly is characterized by comprising a main heat exchanger, wherein the main heat exchanger comprises a front heat exchanger, a middle heat exchanger and a rear heat exchanger, wherein the front heat exchanger, the middle heat exchanger and the rear heat exchanger are both provided with at least two rows of heat exchange tubes and the number of the heat exchange tubes of the middle heat exchanger is more than that of the front heat exchanger and the rear heat exchanger, and a back pipe heat exchanger. The heat exchange flow path of the heat exchanger assembly is divided into a first branch,a second branch and a third branch after passing through the back pipe heat exchanger, and the first branch, the second branch and the third branch all flow from the heat exchange tube on the windwardside of the main heat exchanger to the heat exchange tube on the leeward side. The first branch flows through the heat exchange tubes of the front heat exchanger, the second branch flows through theheat exchange tubes of the middle heat exchanger, the third branch flows through the heat exchange tubes of the rear heat exchanger, and at least one of the first branch and the third branch is arranged across the heat exchange tubes of the middle heat exchanger. According to the technical scheme, the heat exchanger assembly can improve the energy efficiency of the heat exchanger.

The invention discloses a modularized concatenation heat exchanger. The modularized concatenation heat exchanger comprises a plurality of heat exchanging modules, each heat exchanging module comprises a heat exchanging plate and a heat exchanging pipe, a convex pillar cone and a concave pillar groove are formed in the two sides of the plane where the heat exchanging plate is located correspondingly, and the convex pillar cone of each heat exchanging module is in concatenation with the concave pillar groove of the adjacent heat exchanging module. The invention relates to the field of heat exchangers, the heat exchanging pipes are installed on the heat exchanging plates, and thus the heat exchanging modules are formed; and the heat exchanging modules are connected in series to form main parts of the heat exchanger through cooperation of the convex pillar cones and the concave pillar grooves which are installed on the heat exchanging plates, concatenation among the heat exchanging modules does not need assistance of other external auxiliary measures, the installing technique is simple, and dismounting and cleaning are facilitated.

The invention provides a circulating evaporation cooled 1U server, specifically structurally comprising a case for receiving 1U server chassis; the case is divided by a partition mesh into an upper portion and a lower portion, the upper portion is a condensation heat exchange region, a heat exchanger is arranged in the condensation heat exchange region, a water accessing line of the heat exchanger is arranged on the sidewall of the case, cyclically flowing heat exchange liquid is arranged in the heat exchanger, the lower portion if an evaporation heat exchange region, a cooling liquid is arranged in the evaporation heat exchange region, a certain gap is provided between the top of the cooling liquid and the partition mesh, a plurality of 1U server chassis are relatively parallelly arranged in the cooling liquid, an electronic control box that may power all servers is mounted in the case between the cooling liquid and the partition mesh, and the electronic control box is connected with the 1U server case through a power cord. By using the circulating evaporation cooled 1U server compared with the prior art, the refractory problem in cooling of high-temperature air for servers is solved, effective heat exchanging is provided for the servers, heat exchanging is uniform, and server equipment reliability is effectively improved.

The invention relates to a recovery system for tail gas generated during polycrystalline silicon production. The recovery system comprises a barrel, a ventilation assembly and a heat exchange assembly, wherein the ventilation assembly and the heat exchange assembly are arranged in the barrel; the part, close to the heat exchange assembly, in the barrel is filled with activated carbon; the ventilation assembly is used for introducing hydrogen into the barrel and recycling hydrogen; the heat exchange assembly is used for heat exchange of the activated carbon; and the heat exchange assembly comprises a heat exchange pipe, the heat exchange pipe comprises an outer sleeve and an inner pipe arranged in the outer sleeve, one end of the outer sleeve is sealed, the outer wall of the inner pipe is connected with the inner wall, away from the sealed end, of the outer sleeve in a sealed mode, and a plurality of fin plates are arranged on the outer wall of the outer sleeve. According to the system, the influence of liquid having been subjected to heat exchange on heat exchange is greatly reduced, the heat exchange effect of the activated carbon is effectively improved, the heat exchange effect is more uniform, and high-purity hydrogen is obtained in the recovery system for tail gas generated during polycrystalline silicon production.

An immersion type server comprises server main boards, a hard disk pack, a rear panel and a front panel, the server main boards are mounted on the rear panel, the top end of the rear panel is fixedlyconnected with the front panel, I/O (input/output) ports, power supply ports and hard disk connection ports are formed in the front panel, and hard disks in the hard disk pack are electrically connected with the main boards through the hard disk connection ports. According to the immersion type server, heat generated by the high-density server is effectively took away, the cooling efficiency is improved, heat exchange effects are uniform, the market competitiveness of products is improved, reliability of a server device is effectively improved, and the immersion type server is high in practicability, wide in application range and easy to popularize.

The invention discloses a heat exchanger for a frying machine. The local temperature of a frying container is excessively high, the oil metamorphism is easily caused, so that it is difficult for the quality of the oil after being used for a short time to meet requirements, the oil needs to be replaced, and the production cost is greatly increased. The heat exchanger comprises a first collecting pipe, a second collecting pipe, a first pipe, a second pipe, a warming and heat exchange component, a cooling and heat exchange component, a heat transmission component, a cold transmission component, a heat conduction oil tank, a hydraulic pump and an air pump. The warming and heat exchange component comprises a thermal baffle, a heat-exchanging unit, a first gathering inlet pipe and a first gathering outlet pipe. The heat transmission component comprises a second gathering inlet pipe, a second gathering outlet pipe and eight heat transmission pipes. The cooling and heat exchange component comprises a tank body, a hydraulic valve, a spraying pipe, spray nozzles and a finned condensation pipe. The cold transmission component comprises a third gathering inlet pipe, a third gathering outlet pipe and a cold transmission pipe. According to the heat exchanger for the frying machine, the heat exchange effect is more even, and excessive heat stress is not easily generated.

The invention provides a jetting pipe shell type heat exchanger adopting vertical spaced and staggered distribution. A spraying head structure is arranged on the end portion of a shell pass inlet connecting pipe. Multiple horizontal baffles are arranged in a shell. The baffles extend the overall cross section of the shell. Spraying pipes are arranged on the wall face of the shell. Spraying holes are formed in the spraying pipes. A whole circle of spraying pipes are arranged around the vertical inner wall of the shell. A heat exchange part comprises a center pipe, a left side pipe, a right sidepipe and pipe sets. Multiple pipe sets are arranged on the same side in the height direction of the center pipe. The pipe sets adjacent vertically are arranged in a staggered manner at intervals. According to the heat exchanger, adjacent ring-shaped pipes are arranged and distributed in a staggered manner in the vertical direction at intervals, thus sprayed fluid can form an S-shaped channel, thecirculation area is increased, a flowing path is lengthened, and heat can be utilized fully and continuously.