45results about How to "Affect heat transfer efficiency" patented technology

The invention provides a control method for a mobile air conditioner and a control device. The mobile air conditioner comprises a refrigerating system consisting of a compressor, an evaporator and a condenser, and a water striking motor for striking the condensed water on the evaporator to the condenser. The control method for the mobile air conditioner comprises the steps: detecting the real-time dry ball temperature and real-time relative humidity of the environment located by the mobile air conditioner, and recording the running duration of the compressor; according to the running duration of the compressor, the real-time dry ball temperature and real-time relative humidity, controlling the water striking motor to work, so that the condenser can reach the optimal heat exchanging effect. The technical scheme is capable of improving the heat exchanging efficiency of the condenser, and improving the energy efficiency of the mobile air conditioner.

The invention discloses an air supply system of a refrigerator and an air-cooled refrigerator, relates to the technical field of refrigerators and aims at solving the problems of relatively high complexity and poor cooling effect of the existing air supply system of the refrigerator. The air supply system of the refrigerator comprises an air duct cover plate; a sealed air cavity is defined by the air duct cover plate and an inner container of the refrigerator; an evaporator of the refrigerator is arranged on the outer surface of the inner container and corresponds to the sealed air cavity in position; the sealed air cavity is internally provided with air guide ribs by which the sealed air cavity is divided into an air suction region, a first air supply region and a second air supply region which sequentially communicate; an air suction hole is formed in the air suction region; the first air supply region is located above the air suction region; an upper air outlet is formed in the air supply region; the second air supply region is located at the lower part of the first air supply region and is spaced from the air suction region by the air guide ribs; a lower air outlet is formed in the second air supply region; and air in a refrigerator chamber is sucked by the air suction hole, one part of air enters the refrigerator chamber from the upper air outlet, and the other part of air enters the refrigerator chamber from the lower air outlet. The air supply system can be used for the air-cooled refrigerator.

The invention belongs to the field of household appliances, and particularly relates to an automatic descaling type pressure-stabilizing electric water heater. The electric water heater comprises a box body, wherein a U-shaped heating pipe is fixedly arranged on the inner side wall of the box body, and the upper end and the lower end of the box body fixedly communicate with water inlet pipes and water outlet pipes; the outer part of the U-shaped heating pipe is slidably connected with a plurality of descaling rings in a sleeved mode, the plurality of descaling rings are all made of magnetic materials, and every two adjacent descaling rings repel each other at the same pole; the outer part of the U-shaped heating pipe is slidably connected with pushing blocks in the sleeved mode, and the pushing blocks are fixedly connected with the side wall of the box body through memory springs; and a horizontally-arranged sealing plate and a horizontally-arranged heat insulation plate are slidably connected to the inner side wall of the box body, and both the sealing plate and the heat insulation plate can float on the water surface. According to the automatic descaling type pressure-stabilizingelectric water heater, water scale accumulated on the surface of the U-shaped heating pipe can be scraped and removed through the descaling rings, and the water scale is prevented from accumulating and affecting the heat exchange efficiency between the U-shaped heating pipe and water body; and contact heat exchange between cold water and hot water is prevented through the sealing plate and the heat insulation plate, and normal use of a user is guaranteed.

The invention discloses a gradient utilization enhanced hot dry rock geothermal system. The gradient utilization enhanced hot dry rock geothermal system comprises a production well pipeline and recharge well pipelines which are connected with underground hot dry rock, wherein a first-stage plate heat exchanger, a second-stage plate heat exchanger, a third-stage plate heat exchanger and a water injection pump are sequentially connected between the production well pipeline and the recharge well pipelines; the heat exchange end of the first-stage plate heat exchanger is connected with an organicRankine cycle generator set; the heat exchange end of the second-stage plate heat exchanger is connected with a heating module; and the heat exchange end of the third-stage plate heat exchanger is connected with a radiation heating module. The gradient utilization enhanced hot dry rock geothermal system effectively avoids the defect that the system is unstable after running for a period of time, and can select a plurality of recharge well pipelines to be used simultaneously or only one recharge well pipeline can be used through a water distributor. The gradient utilization enhanced hot dry rock geothermal system fully utilizes hot water of each temperature section, adopts multi-stage utilization modes such as power generation, heating and floor heating radiation, fully utilizes working media of each temperature range, can utilize heat energy of the hot dry rock to the maximum extent, reduces unnecessary energy waste, and improves the utilization rate of the whole system.

The invention discloses a falling film evaporator with a unique gas passage. The falling film evaporator comprises a housing. The upper portion of the housing is provided with a coolant distributor. Heat exchange tube groups horizontally arranged are arranged below the coolant distributor and include a first path heat exchange tube group and a top heat exchange tube group. A first gas passage is arranged between the first path heat exchange tube group and the top heat exchange tube group. A distance from top heat exchange tubes in the first path heat exchange tube group to bottom heat exchange tubes in the top heat exchange tube group is 75%-100% of the outer diameter of the heat exchange tubes. The tubes in the heat exchange tube groups are reasonably arranged so that the gas passage is formed in the heat exchange tube groups; the gas passage is used to guide gaseous coolant medium so that the gaseous coolant medium escapes from the heat exchange tube groups constantly at reasonable speed, the film type flowing liquid coolant medium is less disturbed by the gaseous coolant medium, and exchange change efficiency of the falling film evaporator can be higher. The falling film evaporator is simple and compact in structure, good in manufacturability and low in cost.

The invention provides a heat pump type dishwasher and a control method thereof. The heat pump type dishwasher adopts a heat pump system to heat washing water, the heat pump system comprises an evaporator and an air supply device used for driving air to flow through the evaporator, and the heat pump system further comprises a filtering device arranged on the front portion of a windward side of theevaporator and used for filtering the air flowing through the evaporator. The filtering device is arranged at the front portion of the windward side of the evaporator, thus, after air flowing throughthe evaporator for heat exchange is filtered, impurities are prevented from adhering to fins of the evaporator to affect the heat exchange efficiency of the evaporator, and therefore the heat pump type dishwasher has the advantages that the heat exchange efficiency of the evaporator is guaranteed, the heating efficiency of the heat pump system is higher, and a good heating effect is achieved.

The invention discloses a drilling heat supply system based on medium-deep geothermal energy, and belongs to the field of geothermal energy utilization. The system comprises a heat pump, a circulatingpump, an outer pipe, an inner pipe, a medium reversing structure and a shallow heat exchange and medium-deep heat exchange conversion structure. According to the system, circulating power is providedthrough the circulating pump, heat conduction media circulate in the outer pipe and the inner pipe to achieve exchange of medium-deep terrestrial heat, and meanwhile, through the medium reversing structure, when the medium backflow temperature is lower than the temperature of the outer pipe, the flowing position of the media is switched from the outer pipe to the inner pipe, so as to solve the problem that the rising effect of the heated media hinders the operation of the media and increases the energy consumption of the circulating pump; and in summer, the shallow heat exchange and medium-deep heat exchange conversion structure is utilized to act, so that only upper sections of the inner pipe and the outer pipe work, heat exchange of shallow low-temperature terrestrial heat is carried out, and summer cooling can conveniently improve the utilization degree of a coaxial double-pipe heat exchanger composed of the outer pipe and the inner pipe.

The invention discloses a heat, electricity and fertilizer coproduction system for edible mushroom dreg. The system comprises a mushroom bag breaker, a sorting machine and a roller drier which are connected in series sequentially, wherein a medium inlet of the roller drier is connected with a hot-blast furnace. The system is characterized in that a material outlet of the roller drier is connected with a rotary discharging bin through a screw feeder and an elevator, a discharging opening of an additive screw conveyor is connected with a charging opening of the screw feeder, the rotary discharging bin is in series connection with a derived fuel pelletizer, a cooler and a gasifier behind sequentially, and an outlet of the gasifier is connected with a fuel gas exhaust-heat boiler through a settlement type purifier and a draught fan. The invention further discloses a heat, electricity and fertilizer coproduction process for the edible mushroom dreg. According to the system and the process, the mushroom dreg can be treated industrially in time, the pollution to environments is prevented, the resource expenditure is low, the value of products is high, continuous production and long-term normal operation are achieved, the comprehensive economic benefit is improved, and the resource utilization of the mushroom dreg can be achieved.

The invention discloses an ultrasonic welding machine with a temperature shock resistance function. The ultrasonic welding machine comprises a welding head, a servo motor driving mechanism, a support, a base and a rack. The support is made of carbon steel; the base is used for bearing a product and is provided with a containing cavity for containing the product to be welded; the rack is used for bearing the support and the base; the rack comprises a working table in contact with the base and four supporting legs which are used for supporting the working table and located on the lower portion of the working table; and the rack is of a hollow structure, the hollow supporting legs and the hollow working table are connected into a cavity, one supporting leg is connected with a first water storage tank through a water inlet pipe, and the other supporting leg is connected with a second water storage tank through a water outlet pipe. The mounting height of the first water storage tank is larger than that of the second water storage tank, and one side wall of the first water storage tank and one side wall of the second water storage tank are transparent and provided with scales; and the top face of the first water storage tank and the top face of the second water storage tank are each provided with a hand hole. The ultrasonic welding machine is simple in whole structure, high in practicability, long in service life and easy to use and popularize.

The invention provides a clamp structure and a water heater with the same. The clamp structure is used for fastening flat tubes and comprises a clamp body and multiple support parts which are formed on the clamp body and protrude out of the clamp body, and therefore the support parts can be embedded into gaps of the adjacent flat tubes. The flat tubes are fixed by adopting the clamp structure, welding is not adopted between the clamp and the flat tubes, the additional rigid connection problem generated due to welding is avoided, the problem that due to the fact that the flat tubes deflect, contact between the flat tubes and a box is not uniform, and the heat exchange efficiency of the water heater is affected is effectively prevented, and the clamp structure effectively improve the heat exchange efficiency of the water heater.

The invention discloses a solar water heater. The solar water heater comprises an overflow opening, a water inlet, a water tank, an insulation layer, vacuum tubes, a plastic holder, a transverse supporting frame, a main supporting frame and a base. The overflow opening and the water inlet are arranged in the same side of the water tank, the overflow opening is arranged in the top of the side of the water tank, and the water inlet is arranged in the bottom of the side of the water tank. The insulation layer comprises a housing, an insulation material and an interior from outside to inside. The two groups of vacuum tubes are symmetrically arranged relative to the main supporting frame. The transverse supporting frame is connected to the vacuum tubes and the central portion of the main supporting frame and suspended at an obtuse angle. The base is connected to the vacuum tubes and the bottom of the main supporting frame and horizontally arranged to the ground. The plastic holder is arranged at the bottoms of the vacuum tubes. The solar water heater is reasonable in design and simple in structure, still has a low-carbon environment-friendly function, prolongs direct sun lighting time and improves the heating efficiency.

The invention discloses a flue gas waste heat recovery device with vertical low-resistance heat pipes. The flue gas waste heat recovery device with the vertical low-resistance heat pipes comprises a shell body, a thermal insulation plate and a plurality of heat pipes. The inner cavity of the shell body is separated into an upper shell body and a lower shell body by the thermal insulation plate. A heat exchanging medium inlet and a heat exchanging medium outlet are arranged at two sides of the upper shell body separately and a flue gas inlet and a flue gas outlet are arranged at two sides of the lower shell body separately. The plurality of heat pipes are installed on the thermal insulation plate in the way of arranging in rows in a staggered manner. Condensing ends of the heat pipes are located in the upper shell body and evaporating ends of the heat pipes are located in the lower shell body. High-density multi-layer and multi-row linear bending heat exchanging parts are arranged on the outer surfaces of the heat pipes. A flue dust outlet is arranged at the bottom of the lower shell body. According to the device, the high-density linear bending heat exchanging parts are arranged on the surfaces of the heat pipes and therefore the actual heat transferring areas of the heat pipes can be greatly improved, so that the heat transferring effect of the heat pipes can be greatly increased, the heat transferring capacity of the heat pipes can be greatly improved and furthermore the heat exchanging efficiency of the device can be improved; moreover, the flue dust in the flue gas is discharged from the flue dust outlet, so that the problem can be effectively avoided that the flue gas outlet is blocked by the flue dust in the flue gas.

The invention discloses a trench heat exchange mechanism for a house in the field of building of animal houses. The trench heat exchange mechanism comprises a dung ditch and an air flue which are formed in the bottom of the house in parallel, wherein the lengths of the dung ditch and the air flue are the same, the dung ditch and the air flue share a side wall, and a heat conducting component is arranged on the side wall. According to the technical scheme, the problem in the prior art that a temperature adjusting scheme of the animal houses is high in cost and inconvenient to implement are solved.

The invention discloses a multi-functional temperature regulating and purifying fresh air ventilator. The fresh air ventilator is characterized by comprising a heat exchanger, wherein the heat exchanger comprises more than two hot pipes and more than two cooling fins, the more than two cooling fins are arranged in an overlapped manner, the more than two hot pipes penetrate through the cooling finsin parallel, one ends of the hot pipes are located in a fresh air pipeline of the purifying fresh air ventilator, and the other ends of the hot pipes are located in an exhaust pipeline of the purifying fresh air ventilator; in the fresh air pipeline, an air filter and a fresh air fan are sequentially arranged at the side of the air inlet of the heat exchanger in the air direction, and an air heater and a silencing device are sequentially arranged at the side of the air outlet of the heat exchanger in the air direction; in the exhaust pipeline, an exhaust fan is arranged at the side of the airoutlet of the heat exchanger; and the air heater, the fresh air fan and the exhaust fan are all in signal connection with a controller. By arranging the heater to regulate the air outlet temperatureof fresh air, the comfort of human bodies is improved.