4506results about How to "Increase the heat exchange area" patented technology

A magnetic refrigerating device includes: at least one set of double-structured Halbach type magnet including a ring-shaped inner Halbach type magnet and a ring-shaped outer Halbach type magnet which are coaxially arranged one another so that a magnetic field generated by the inner Halbach type magnet is superimposed with a magnetic field generated by the outer Halbach type magnet; a magnetic refrigerant or a magnetic refrigeration working chamber including the magnetic refrigerant therein disposed in a bore space of the inner Halbach type magnet; and a rotating mechanism to rotate the outer Halbach type magnet while the inner Halbach type magnet is stationed.

The invention discloses a heat recovery type multi-connection air condition unit, comprising at least one outdoor unit, a plurality of indoor units and at least one hot and cold converter. The outdoor unit comprises a compressor, an outdoor heat exchanger, a subcooler, two four-way reversing valves and three refrigerant pipelines; each indoor unit comprises an indoor heat exchanger; and the hot and cold converter comprises expansion valves and a bypass capillary, wherein the expansion valves control the on-off of a high pressure air pipe and a low pressure air pipe, and the bypass capillary is arranged between the high pressure air pipe and the low pressure air pipe. When the indoor unit connected with the hot and cold converter is used for heating, the expansion valve at the high pressure air pipe side is turned on and the expansion valve at the low pressure air pipe side is turned off to realize the connection of the air pipe of the indoor unit and the high pressure air pipe. When the indoor unit connected with the hot and cold converter is used for cooling, the expansion valve at the low pressure air pipe side is turned on and the expansion valve of the high pressure air pipe is turned off to realize the connection of the air pipe of the indoor unit and the low pressure air pipe. By the air condition unit, the combination of the units as well as the function of two-pipe heat pump air condition can be realized, and the common two-pipe heat pump air conditioner and the heat recovery type air conditioner capable of cooling and heating simultaneously are effectively combined.

The invention relates to a flexible tubular solid liquid processor, with filter, heat exchange and thermal extraction functions, wherein the filter element at least comprises one flexible tubular membrane unit, upper flange room and lower flange room; the hydraulic extracting system comprises pressure container, extract pump and tubes; the material liquid of container can be filtered by the tubular filter membrane of membrane unit, and said material liquid can be used as work medium to extract the concentrated material liquid in the filter room of membrane unit and discharge filter slag; the pressure container or the filter room of membrane unit can be filled with medium to exchange heat, to realize thermal filter or extraction; the filter element is arranged on the bearing base inside the pressure container; the filter rotator can rotate the filter element to realize cross-flow filter; and the invention can be arranged with gas or water reverse tube and vacuum filter tube; the slag discharge system comprises slag discharger or tubular inner/outer membrane scraper, or vibration slag discharger, or compression slag discharger.

A silicon carbide ceramic foam solar energy air heat absorber uses silicon carbide ceramic foam materials as solar energy absorber. The silicon carbide ceramic foam absorber is wrapped with an insulating layer (2). A radiant heat flux (3) projects onto the surface of the silicon carbide ceramic foam absorber (1) or into an artificial blackbody cavity (9) and is received by the silicon carbide ceramic foam absorber (1). Cold air (4) flows in from the side of the silicon carbide ceramic foam absorber (1) positive to the radiant heat flux (3). Hot air (5) is obtained through heat exchange of thecold air and the radiant heat flux. Or the cold air (4) flows in from the side of the silicon carbide ceramic foam absorber (1) positive to the radiant heat flux (3) or back to the radiant heat flux (3). The hot air (5) of 700 to 1300 DEG C is obtained through the heat exchange of the cold air and the radiant heat flux through a quartz window (10). The silicon carbide ceramic foam absorber (1) buries an air diversion channel (8) beforehand. The invention can effectively receive radiant heat and emit heat to the air and take advantage of self-sensible heat to store heat at the same time.

A heat dissipating device includes a casing having a compartment. At least one heat conducting board is mounted in the compartment and divides the compartment into first and second chambers. The first chamber includes a plurality of openings. At least one fan unit is mounted in the first chamber and includes at least one air inlet and at least one air outlet. The air inlet is in communication with a first one of the plurality of openings. The air outlet is in communication with a second one of the plurality of openings. By utilizing the heat conducting board to absorb the heat generated by electronic elements in the second chamber and by creating airflow in the first chamber with the fan unit, the temperature of the second chamber and the electronic elements is lowered while preventing moisture or dust from entering the first chamber.

The invention discloses a precession-type backfill grouting ground source thermal energy conversion precast pile device, which comprises a plurality of precession-type backfill grouting prefabricated screw piles respectively embedded into pile holes, wherein a vertical heat exchanger is embedded in each screw pile; the inlet end and the outlet end of each vertical heat exchanger respectively extend out of an opening at the upper end of the screw pile to be respectively connected with a horizontal liquid-feeding collecting pipe and a horizontal liquid outlet collecting pipe in a bearing platform or a cushion layer; centring brackets are arranged at an interval of 1-3 m along the length direction of each vertical heat exchanger; each precession-type backfill grouting prefabricated screw pile comprises a hollow pile core, wherein the bottom of the pile core is provided with a cone-shaped pile head; a screw blade is arranged on the position far away1-3m from the lower part of the outer wall of the pile core; and a post grouting reinforcing layer is poured between the middle upper part of the outer wall of the pile core and a pile hole wall. The precession-type backfill grouting ground source thermal energy conversion precast pile device comprises a plurality of precession-type backfill grouting prefabricated screw piles, and the vertical heat exchanger is embedded in each screw pile; the pile foundation construction and the ground source heat pump construction are integrated so as to avoid a drilling and pipe-laying program of a ground source heat pump system on the ground, greatly lower the front-end investment cost and save the land use area; and the post grouting reinforcing layer is poured between the middle upper part of the outer wall of the pile core and the pile hole wall so as to enlarge a heat conduction area, improve the heat conduction performance and simultaneously improve the pile body bearing capacity.

The invention provides a vertical air conditioner indoor unit and an air conditioner. The vertical air conditioner indoor unit (1) is installed at the position of an indoor wall corner (2) and comprises a first air outlet (11) and a second air outlet (12), the first air outlet (11) can conduct air outlet in the direction of a first wall face (21) of the wall corner (2), and the second air outlet (12) can conduct air outlet in the direction of a second wall face (22) of the wall corner (2). By means of the vertical air conditioner indoor unit and the air conditioner, airflow sent from the leftand right air outlets can flow along the wall, the air conditioner is prevented from blowing a person directly, the left and right air outlets achieve air supply along the wall, surrounding airflow can be achieved, the airflow achieves systemic circulation indoors, the coanda effect of the airflow is conveniently formed, even temperature distribution caused by uneven indoor airflow is prevented, the indoor temperature distribution is even, and the comfort of the user is improved.

The invention discloses a near-wall air device for preventing the high-temperature corrosion of the water-cooled wall of a power station boiler, which comprises an air duct, a regulating valve, a near-wall air box, near-wall air unit nozzles, a fuel component on-line monitor and a speed measuring device, wherein the direction of the near-wall air is parallel to the axis of a pipe of the water-cooled wall, the resistance along the course is small and the air speed reduction is slow; only one layer of near-wall air nozzles is required to be arranged in a burner area and the system structure is simple; and the nozzles are flexibly arranged, the nozzle cooling condition is good, the operational air volume is small and the stability is high. Thus, the device is suitable to be promoted for preventing the high-pressure corrosion of the water-cooled walls of power station boilers.

The invention discloses an afterheat recovery system and an afterheat recovery method of dry granulating liquid slag. The system comprises a granulating cabin, a moving bed and an afterheat recovery system, the inner surface of the granulating cabin is provided with a granulating cabin water cooling wall, the center of the top of the granulating cabin is provided with a slag pipe, the slag pipe extends into the granulating cabin, the lower part of the tail end of the slag pipe is provided with a centrifugal granulator, the centrifugal granulator is connected with a motor arranged at the lower part of the centrifugal granulator, the lateral side of the centrifugal granulator is provided with an air supply pipeline, an annular air opening is formed between the centrifugal granulator and the air supply pipeline, the lower part of the granulating cabin is provided with the moving bed, the inner surface of the moving bed is provided with a moving bed water cooling wall, the top of the moving bed is provided with an air outlet, the bottom of the moving bed is provided with a slag discharge device, an air inlet device is arranged above the slag discharge device, the afterheat recovery system comprises a primary dust remover, an afterheat boiler, a secondary dust remover, an exhaust fan and a chimney which are connected in sequence, and the primary dust remover is connected with the air outlet arranged at the top of the moving bed. The system and the method effectively solve the problems of heat recovery and furnace slag granulation of equipment such as a blast furnace.

The invention provides a powerless type air heat recollection device which is characterized in that the device at leased includes a fresh air channel used for bringing in fresh air and an air exhaustion channel to exhaust the indoor air, wherein, the two ends of the fresh air channel are respectively provided with an air inlet A communicated with the outside and an air outlet B communicated with the inside. The two ends of the air exhaustion channel are respectively provided with an air outlet A1 communicated with the outside and an air inlet B1 communicated with the inside; at least either of the air inlet A or air outlet A1 is provided with an air cap which includes a wind wheel and shaft, which are driven by the external wind power, and a fan which is driven by the shaft and can form a fixed air intake or exhaustion flow in the fresh air channel or the air exhaustion channel under the drive of the wind cap; the device also at least includes a heat exchanger which runs through the fresh air channel and the air exhaustion channel.

The invention relates to the technical field of electric cars, in particular to an integrated water-cooled power battery box. The integrated water-cooled power battery box provided by the invention comprises a box cover, a box body and a temperature regulating power system, wherein the box body is made of an aluminum alloy material and is manufactured by an extrusion moulding technology; a circulating flow passage is formed in the wall of the box body; a circulating loop for a temperature regulating medium to flow circularly is arranged inside the wall of the box body; and the temperature regulating power system can drive the temperature regulating medium to circularly flow in the circulating loop. In such a way, a water cooling board and a battery box are designed in an integrated manner,a hollow aluminum alloy section is adopted to achieve lightweight design, mechanical properties such as strength and rigidity are met, the integrated water-cooled power battery box is simpler in structure, better in technical performance and smaller in occupied space, and the comprehensive cost can be reduced; the heat-dissipating, cooling and temperature-raising and heating functions can be achieved by using one set of temperature regulating power system, the integrated water-cooled power battery box is simpler in structure, more convenient and fast to use and smaller in occupied space, themanufacturing cost and the using cost can be reduced, and the heat-dissipating efficiency and the heating efficiency can be improved.

The invention provides a coaxial heat exchanger. The coaxial heat exchanger comprises an outer tube and an inner tube which are sleeved coaxially; the main body section of the inner tube is a multi-head spiral tube with a plurality of parallel spiral slot structures; both ends of the inner tube are used as a first fluid inlet and a first fluid outlet respectively; both ends of the outer tube are used as a second fluid inlet and a second fluid outlet respectively; a first fluid passageway is formed in the inner tube; a second fluid passageway consisting of a plurality of parallel spiral slots is formed between the outer tube and the inner tube; the second fluid passageway uniformly encircles the first fluid passageway; first fluid flows into the inner tube and flows out of the inner tube through the first fluid passageway; second fluid flows in the second fluid passageway; and the two kinds of fluid flows reversely so as to exchange heat through the tube wall of the inner tube. The coaxial heat exchanger provided by the invention has a large heat exchange area and high heat exchange efficiency; and the metal consumption of unit heat exchange area is low and the volume of the heat exchanger can be reduced, so the whole structure is compact and rational, and the coaxial heat exchanger is easy and convenient to operate and install.

The invention discloses a split air-conditioner indoor unit, which comprises an upper shell arranged on the body. A heat exchanger, a cross flow wind wheel and an air duct for accommodating the heat exchanger and the cross flow wind wheel are arranged in the upper shell; the upper shell is provided with an air inlet and an air outlet which are communicated with the air duct, the air duct comprises a left air duct and a right air duct, the front of the upper shell is provided with a front panel, and a middle partition plate is arranged in the upper shell; the left air duct is encircled by the upper shell, the front panel, the middle partition plate and a left volute of a left cross flow wind wheel together; a left heat exchanger, the left cross flow wind wheel and a left volute tongue of the left cross flow wind wheel are arranged in the left air duct; the right air duct is encircled by the upper shell, the front panel, the middle partition plate and a right volute of a right cross flow wind wheel together; and a right heat exchanger, the right cross flow wind wheel and a right volute tongue of the right cross flow wind wheel are arranged in the right air duct. The split air-conditioner indoor unit has the characteristics of simple and reasonable structure, small integral volume, high energy efficiency ratio, flexible installation mode and wide application range.

This invention relates to a photovoltage/photoheat coupled device including a solar cell, a glass cover plate set on the cell, a heat-collecting tube under the cell and a back sealed insulation material, in which, this invention sets a heat-collecting copper plate sprayed with a light absorption layer under the lower conglutinated insulation layer of the cell to replace the opaque back sealing film of a cell, besides, tin-lead or laser continuous welding is used in the connection part between the heat-collecting copper plate and the heat-collection tube to reduce heat resistance between them.

The invention discloses a rotary air preheater dust-blocking-prevention synergy sealing method and system. The dust-blocking-prevention synergy sealing method includes the steps that air leaked from the heat end is guided or extracted to the cold end from the heat end, and local heat exchange elements are purged and heated. The rotary air preheater dust-blocking-prevention synergy sealing system comprises a heat end primary air/smoke side sector sealing box, a heat end primary air/secondary air side sector sealing box and a cold end secondary air/smoke side sector sealing box, and further comprises a heat air leakage air flue; the heat end primary air/smoke side sector sealing box and the heat end primary air/secondary air side sector sealing box are each provided with an air inlet, one end of the heat air leakage air flue is in butt joint with the air inlets, and the other end of the heat air leakage air flue extends to a cold end secondary air highest-temperature module. By means of the rotary air preheater dust-blocking-prevention synergy sealing method and system, H2SO4 drops and liquid state NH4HSO4 are gasified while the air leaked from a preheater is reduced, and the aim of removing accumulated dust is achieved; the rotary air preheater dust-blocking-prevention synergy sealing method and system have the advantages of reducing the boiler smoke discharging temperature, restraining the accumulated dust of the preheater, reducing the air leakage rate, prolonging the service life of the heat exchange elements and the like.

The invention discloses a drying and dry distillation combined quality improving process and a drying and dry distillation combined quality improving system for low rank coal, which are used for overcoming the defects existing in the prior art and are particularly suitable for drying and dry distillation combined quality improvement of brown coal with high water content or other low rank coal such as long flame coal, non-caking coal or weakly caking coal, gas coal and the like. In the process, a combined quality improving method in which a steam revolving drier for drying and a multi-pipe revolving low-temperature dry distiller for dry distillation are provided is adopted, so that the problems of large coking wastewater handling capacity, large coal gas handling capacity and the like existing in a pure dry distillation process are solved. The drying and multi-pipe revolving low-temperature dry distillation combined quality improving process provided by the invention has the advantages of high energy utilization ratio, safe and stable systems, small dry distillation gas handling capacity, small coking wastewater handling capacity, high tar yield, high coal gas heat value and the like.

The invention discloses a reentry type compound cooling structure which comprises an external wall, a middle wall, an internal wall and end walls. The back segment of the external wall is provided with an impact opening; a cooling air slot with certain interval is formed between the middle wall and the front end wall; the internal wall is a cooling structure of a multi-inclined-hole wall, and cooling air flows in a reentry way among the walls of three layers. An impact flow mode is adopted for cooling air. The air flows from back to front in an upper cooling channel composed of the external wall and the middle wall. The heat exchange efficiency of the front segment of the middle wall can be effectively improved by the function of bytyl cellular pits on the middle wall. The air enters a lower cooling channel from the cooling air slot, flows in the reentry way and flows out of the internal wall from a shrinkable and expandable air film hole, and the air film protection is formed at the hot lateral of the internal wall. The shrinking air intake of the shrinkable and expandable air film hole can effectively improve the convective heat transfer of the internal wall of the shrinkable and expandable air film hole, and the expanding gassing can lower the penetration capability of jet flows, strengthen the cover effect of the air film on the hot lateral of the internal wall and effectively protect flame tubes. The cooling structure has the advantages of simple structure, convenient manufacturing and convenient popularization and application.

The invention provides a window type air conditioner. The window type air conditioner comprises a shell body and a cross-flow fan. The front end of the shell body is provided with an air inlet and an air outlet located above the air inlet. The cross-flow fan is arranged in the shell body and provided with a wind wheel, a volute and a volute tongue which is located on the front side of the volute. The air inlet and the air outlet communicate through a fan air channel limited by the volute and the volute tongue. The projection, in the plane perpendicular to the rotation axis of the wind wheel, of the inner surface of the volute forms the volute profile line of the volute, and the volute profile line is divided into an upper section and a lower section through the point, closest to the rotation axis of the wind wheel, on the volute profile line. In addition, the upper section comprises three circular arc sections connected sequentially and smoothly. According to the window type air conditioner, due to the fact that the volute profile line of the volute comprises the three circular arc sections, the special streamline air channel design structure enables air inflow and air outflow of the window type air conditioner to be smoother, and accordingly noise generated by the window type air conditioner is significantly lowered.

The invention discloses a method and a device for welding a tube type heat exchanger by using laser scanning. Under the control of a computer program and according to tube parameters of the tube type heat exchanger, data such as laser parameters, dynamic focusing scanning control parameters, and the like is determined, and the heat exchanger components are welded and processed by adopting a laser beam deflection scanning method. The device for realizing the method comprises a high power laser, a collimated beam expander, a diaphragm with water cooling, a dynamic focusing system, an XY beam positioning scanner, a CCD photographing system, a Z-axis liftable workbench and a computer control system. The invention has the advantages that after the welded workpiece is fixed, only the focused laser beam is arranged in a determined three-dimensional processing space under the control of the computer program, and the tube type heat exchanger is subjected to non-contact type welding along a welding seam locus in a dynamic focusing laser beam scanning welding method. The invention overcomes the difficulty in the manufacturing of the tube type heat exchanger and realizes the precision manufacturing of a stainless steel ultrathin-wall tube type miniature heat exchanger.

The invention discloses an air conditioner which is provided with an air inlet, a first air outlet and a second air outlet. The air conditioner comprises a shell, a first air wheel, a second air wheeland a heat exchanger, wherein an air mixing cavity, a first air duct and a second air duct are formed in the shell; the first air duct and the second air duct are used for connecting the air mixing cavity with the air inlet; the first air wheel is arranged in the first air duct; the second air wheel is arranged in the second air duct; and the heat exchanger is arranged in the shell and positionedon the upstream sides of the first air duct and the second air duct, so that air from the air inlet can enter the first air duct and the second air duct after exchanging heat with the heat exchanger.The air conditioner disclosed by the invention has the beneficial effects that the air duct heat exchanging area is large, the working performance is good, and the air supply effect is good.

The invention discloses a heat pipe type solid-liquid phase transition heat accumulator which comprises a box body, fins, liquid absorbing cores, phase transition heat accumulating materials and working media. The box body comprises a shell and a main channel formed in the shell, the two ends of the main channel are opened, the main channel is not communicated with the shell, the shell is internally provided with the fins and the phase transition heat accumulating materials, the fins are fixed to the main channel, the fins are annularly arranged about a center shaft of the main channel, and are arranged in the axial direction of the main channel in multiple layers, the ribs are of hollow structures, the liquid absorbing cores are attached to the inner walls of the hollow structures, and the spaces in the fins are filled with the working media for heat transferring between heat or cold sources and the phase transition heat accumulating materials through evaporating and condensing. According to the heat pipe type heat accumulator, the fins achieve heat exchange between the heat or cold sources and the solid and liquid phase transition heat accumulating materials through evaporating and condensing of the internal working media, and the working efficiency of the heat accumulator is improved.

The invention discloses an ultrathin soaking plate and a manufacturing method thereof. The ultrathin soaking plate comprises a cover plate and a bottom plate, wherein the peripheral edge of the cover plate and the peripheral edge of the bottom plate are in sealed connection. A groove is formed in the inner surface of the cover plate so that a cavity in a vacuum state can be formed between the cover plate and the bottom plate. A plurality of protrusions arranged in an array manner are distributed in the cavity and located on the bottom face of the groove. The protrusions are hollow pillars formed in a pressing manner. The protrusions are connected with the cover plate and the bottom plate so that the protrusions can be supported between the cover plate and the bottom plate and used for heat transmission between the cover plate and the bottom plate. The outer walls of the protrusions serve as a medium for working fluid to flow towards the bottom plate from the cover plate when the working fluid is evaporated and condensed when encountering cold. The protrusions on the cover plate are in contact with the bottom plate and can support the cavity formed by the cover plate and the bottom plate and be used for heat transmission between the bottom plate and the cover plate; and the outer walls of the protrusions serve as the medium for the working fluid to flow towards the bottom plate from the cover plate when the working fluid is evaporated and condensed when encountering cold. By means of the ultrathin soaking plate and the manufacturing method of the ultrathin soaking plate, the thickness of the soaking plate can be reduced, the protrusions are formed in the pressing manner through a simple stamping technology, the manufacturing technology is simplified, the cost is low, and the ultrathin soaking plate is suitable for large-scale production.