53results about How to "Improve heat exchange performance" patented technology

The invention relates to a self-regulating steady-state low-temperature heat-pump water heater comprising an evaporator, a condenser, a compressor, a control device, a four-way reversion valve, a medium-pressure receiver and an intermediate heat exchanger which can form a closed main loop, wherein the four-way reversion valve is positioned on a connection access arranged between the evaporator and the condenser, the medium-pressure receiver and the intermediate heat exchanger are arranged on the other connection access arranged between the evaporator and the condenser, and a temperature sensor, an electronic expansion valve and a pressure sensor are positioned on the closed main loop. The self-regulating steady-state low-temperature heat-pump water heater is characterized in that an air-supply loop is arranged between the compressor and the intermediate heat exchanger. The self-regulating steady-state low-temperature heat-pump water heater has a main purpose of preventing hot-water preparation capacity reduction at low environmental temperature and a secondary purpose of ensuring the stable state of a refrigerant when heat load changes in the condenser and realizing higher heat-exchange performance in the condenser.

In a heat exchanger, a tube is adapted to exchange heat between a first fluid flowing therein and a second fluid flowing through outside of the tube, and an inner fin is disposed in the tube to divide a flow passage in the tube into a plurality of flow paths. The inner fin includes a plurality of fin portions with different specifications, and the fin portions are arranged in series with respect to a flow direction of the first fluid. Furthermore, the fin portion with the smallest flowing resistance of the first fluid among the plurality of fin portions is arranged on an upstream side of the flow direction of the first fluid with respect to at least an another fin portion. Accordingly, heat exchange performance in the entire heat exchanger can be effectively improved.

The fin comprises a set of undulating legs (23) connected alternately by an undulating top and by an undulating base. The legs are provided with flaps (25) cut in the legs and inclined at an angle (alpha ) relative to the principal undulating direction (D1). The legs have a thickness (e), an average transverse spacing (w) which define the width of the passage channel and the flaps have a length (ls) greater than the pitch (p). An independent claim is included for a heat exchanger utilizing the fins.

The invention provides a heat exchanger. A plurality of V-shaped strip portions (9) are parallelly arranged on surfaces of fins of the heat exchanger, dust or coal and the like are difficult to attach to each portion of the fins (2), and the thermal efficiency is good. In a first plane (3) of each fin (2), a pair of inclined strip portions (2a and 2b) forms a V shape, one inclined strip portion in the pair of inclined strip portions (2a and 2b) is configured at an inclined angle (alpha) towards a front side in a direction opposite to the circulating direction of gases, the other inclined strip portion in the pair of inclined strip portions (2a and 2b) is configured at an inclined angle (beta) towards a back side in a direction opposite to the circulating direction of the gases, and thereby the inclined strip portions (2a and 2b) form a right and left asymmetrical angle. Besides, a right and left asymmetrical angle in a second plane (4) opposite to the first plane (3) is opposite to that of the first plane (3) in a direction relative to the circulating direction of the gases.

A heat exchanger of small size and thin type is provided. It includes a machine body (1), an indoor suction port (3) for sucking indoor air (2), an indoor diffuser (4), an outdoor suction port (7) for sucking in outdoor air (6), an outdoor diffuser (8), a motor (11) provided inside the machine body (1), an exhaust blade (9) and an intake blade (10) disposed at the motor (11), an exhaust fan casing (12) provided around the exhaust blade (9), an intake fan casing (13) provided around the intake blade (10), and a plurality of heat exchange elements (16) disposed around the exhaust fan casing (12) and intake fan casing (13).

The invention discloses a sound insulation ventilating window. The sound insulation ventilating window comprises an external window (2) with an air inlet (1), an internal window (4) with an air outlet (3), and a muffling cavity body (5) which is positioned between the internal window (4) and the external window (2), and connected with the external window (2) and the internal window (4); louver muffling sheets (6) controlled by a motor are suspended inside the muffling cavity body (5); and the louver muffling sheets (6) are rotated or gathered under the action of the motor. The sound insulation ventilating window can stop low frequency band noises of which the frequency is lower than 500Hz so as to further weaken the noises from the outside of the window to the inside of the window; meanwhile, the ventilating performance of the sound insulation ventilating window can be guaranteed; the daylighting effect of the sound insulation ventilating window is better, the requirements of indoor noise reduction, heat insulation and daylighting of people can be met, and the structure is simple.

The invention discloses a superconducting cable. The cable comprises an external wrapping insulating protective layer, a conduit arranged in the external wrapping insulating protective layer and a superconductor arranged in the conduit, the conduit is provided with a nitrogen inlet tube and a nitrogen outlet tube, both the nitrogen inlet tube and the nitrogen outlet tube penetrate the external wrapping insulating protective layer, and the superconductor is of a hexagonal grid type and forms a tubular spatial topology structure. Precooling time, before use, of the superconducting cable is short.

The invention relates to a fluoroplastic waste heat recycling and ultra-low emission integrated device which is located above a catalytic reaction area in a desulfurizing tower and below a demister. The fluoroplastic waste heat recycling and ultra-low emission integrated device comprises a heat exchanger used for carrying out smoke waste heat exchange and capturing dust, a water flushing assembly used for flushing the surface of the heat exchanger, and a water collecting assembly used for collecting waste water and dust falling down from the surface of the heat exchanger. The water flushing assembly and the water collecting assembly are located above and below the heat exchanger respectively. The heat exchanger is a fluoroplastic plate type heat exchanger with a water inlet and a water outlet. The water inlet is connected with a low-temperature demineralized water feed pump. The water outlet s connected with a boiler system or a heating system. Compared with the prior art, the fluoroplastic waste heat recycling and ultra-low emission integrated device has good smoke waste heat recycling performance and dust and mist removing performance, and the purpose of integration of waste heat recycle and ultra-low emission is achieved. The fluoroplastic waste heat recycling and ultra-low emission integrated device has the beneficial effects of being resistant to corrosion, stable, reliable, low in water consumption and the like.

The invention discloses a fin structure disposed in heat transfer pipe, which divides the fluid channel into a plurality of small channels. The fluid includes cooling medium or refrigerant flowing in a heat transfer pipe; the cross sections of the small channels of the fin structure are squares or rectangles; the longitudinal plane of the small channels of the fin structure are corrugated shaped with same corrugation width; at least one rising section is formed on the side surface, or upper wall, or lower wall of the small channel of the fin structure, in order that at least one rising section is formed extending toward the upstream of the small channel by a tongue shape.

The invention discloses a primary surface type regenerator, which comprises a shell (2) and is characterized in that the shell (2) comprises an inner shell and an outer shell, a heat exchange core (1) is arranged between the inner shell and the outer shell and comprises an inner barrel (7) and an outer barrel (8) which are sheathed coaxially, and at least two heat exchange units (3) are arranged between the inner barrel (7) and the outer barrel (8). In the primary surface type regenerator disclosed by the invention, corrugated plates with air ducts being distributed in a cosine line shape are adopted, so that heat exchange area and length are increased, and high-temperature hot air after being combusted is utilized as much as possible to heat air; high-temperature tail gas is utilized to heat air, so that energy consumption is reduced, and heat efficiency of fuel gas is improved; since air involving in combustion has high temperature, the generated quantity of exhaust gases such as oxynitride, CO (carbon monoxide) and the like can be greatly reduced, and thus the goal of energy saving and emission reduction is realized; and the discharge temperature of a host machine can be reduced to 300 DEG C from 600 DEG C, and the heat exchange effect is remarkable.

In order to alleviate reduction in a heat exchange capability and to further improve the heat exchange capability, a heat exchanger of the present invention includes: a heat sink; and an electron emitting element which is provided so as to be separated from the heat sink by a space and which provides electrons to the heat sink via air in the space. The electron emitting element includes: an electrode substrate; a thin-film electrode; a power supply which applies a voltage between the electrode substrate and, the thin-film electrode; and an electron acceleration layer which accelerates electrons inside the electron acceleration layer in response to the voltage applied by the power supply so that the electrons are emitted from the thin-film electrode. The electron acceleration layer is made at least partially of an electric insulating material. The heat exchanger includes an air filter through which air flows onto a surface of the thin-film electrode. This can alleviate reduction in the heat exchange capability, caused by dust that adheres to a surface of the electron emitting element and therefore can attain an excellent heat exchange capability for long periods.

A guide plate having depressed portions is provided between an array of heat exchanger tubes, herein after “tubes”, arranged horizontally side-by-side and a next lower array of tubes arranged horizontally side-by-side, and is positioned with the lowest parts of the depressed portions near crest portions of respective lower tubes. The guide plate conveys a liquid D on outer surfaces of respective upper tubes onto similarly positioned lower tubes even when the tubes move in a right-and-left direction. A falling film heat exchanger installed in a ship, an offshore structure or the like can avoid reduction in heat exchange performance, even when the ship or the like inclines and swings, by substantially evenly distributing and dropping a liquid onto the crests of the tubes and causing the liquid dropped from the tubes located in an upper array to fall onto the tubes located in the next lower array.

The invention relates to a circulation flow reaction device for producing phosphorus oxychloride by an oxygen oxidation process. The circulation flow reaction device comprises a reaction kettle, a circulating pump and a heat exchanger, wherein a feed port is arranged in the left side of the top of the reaction kettle and a discharge port is arranged in the bottom end of the reaction kettle; the discharge port is provided with a connecting pipeline which is connected with the bottom end of the heat exchanger; the connecting pipeline, which is positioned between the discharge port in the bottom end of the reaction kettle and the bottom end of the heat exchanger, is provided with the circulating pump; the top of the heat exchanger is provided with a connecting pipeline which extends into a feed port arranged in the right side of the top of the reaction kettle and is connected with a material spray distributor arranged in the reaction kettle; and an air inlet is drilled in the center of the top of the reaction kettle and is internally provided with a vertical pipeline which extends into the near bottom of the reaction kettle and is connected with an oxygen distributor. According to the circulation flow reaction device, as the material spray distributor and the oxygen distributor are arranged in the reaction kettle, oxygen molecules can be effectively and fully in contact with phosphorus oxychloride molecules, therefore, the reaction probability is increased, the reaction time is shortened, and the yield and the device availability are increased.

The invention belongs to the technical field of information acquisition and fusion, and particularly discloses an information acquisition and fusion device based on spindle thermal design and a methodof the information acquisition and fusion device. The information acquisition and fusion device comprises an equipment box and a detection module, wherein supporting rods are fixedly connected to theupper part of the equipment box; a host is fixedly connected to the upper parts of the supporting rods; a data integration unit is arranged below the detection module; the detection module is arranged on the right side of the host; a keyboard is arranged on the right side of the supporting rods; and a mouse is arranged on the right side of the keyboard. According to the information acquisition and fusion device based on the spindle thermal design and the method of the information acquisition and fusion device, compared with an existing common information acquisition and fusion device and a method thereof, the information acquisition and fusion device based on the spindle thermal design can well clamp electric control parts in the using process and are not prone to causing the shifting ofthe electric control parts in the long-term use process, circuits cannot drop, and instruments frequently used in the information collection process can be collected well in a centralized manner.

The invention relates to a cabinet air conditioner. The cabinet air conditioner comprises a partition plate, a front cover and a rear cover, the front cover and the rear cover are oppositely buckled on the front side and the rear side of the partition plate respectively, an inner circulation heat exchange cavity is formed between the front cover and the partition plate, an outer circulation heat exchange cavity is formed between the rear cover and the partition plate, and the inner circulation heat exchange cavity and the outer circulation heat exchange cavity are isolated through the partition plate. A base plate in an outer circulation system is provided with a flow channel for a refrigerant to flow, the outermost side of the base plate is provided with heat dissipation fins directly exposed to the outside space, and heat dissipation is conducted through natural convection of air. The cabinet air conditioner is reasonable and compact in structural layout, corrosion-resistant in material, simple and convenient in modular design and processing, relatively low in cost, easy to mount and maintain, relatively low in noise during working, attractive in appearance and excellent in heatexchange effect.

The invention discloses a liquid distributor and an air conditioner equipped with the liquid distributor. The liquid distributor comprises a distributing part at the upper end and a liquid inlet part at the lower end, wherein a drainage port is formed in the inner side of the lower part of the liquid inlet part, a flow stabilizing hole communicated with the drainage port is formed in the drainage port, the diameter of an inlet of the flow stabilizing hole is smaller than that of the drainage port, the flow stabilizing port extends to the top end of the liquid inlet part, a plurality of distributing ports at equal intervals are formed in the upper end of the flow stabilizing hole, and the distributing part is provided with a plurality of distributing channels communicated with the distributing ports; and the air conditioner is equipped with the liquid distributor. Liquids entering the liquid distributor are uniformly distributed, non-uniform turbulent flow is prevented from being formed, noise produced when a liquid flows is reduced, and the refrigerating capacity of the air conditioner is effectively improved.

The invention discloses an efficient energy-saving concentration treatment device for desulfurization wastewater. The concentration treatment device for the desulfurization wastewater comprises an evaporation tower, system wastewater is introduced into a water inlet pipe, flows to a center pipe, enters all water distribution branch pipes and is evenly sprayed downwards, a motor and a fan are started, and when the wastewater passes through a filler layer from the water distribution branch pipes from top to bottom and is subjected to one-time heat exchange with air introduced from an inlet air mesh, one-time evaporation is completed; the sprayed water falls on a water collection disc, a proper amount of smoke is supplemented to the air inlet pipe, the water temperature keeps at the design valve, and a wastewater circulation pump sucks the wastewater in the water collection disc into the water inlet pipe; in this way, the steps are circulated until the concentration of slurry of the watercollection disc reaches the required concentration, a discharging pipe is opened, and a concentration solution is discharged to a following treatment technology zone. According to the device, by effectively using the heat and waste heat of the system, the energy is saved, the investment is reduced, few devices are needed, the operation and maintenance cost is low, high concentration can be achieved, and in flexible cooperation with after-treatment of various forms, zero discharging of terminal wastewater is achieved.