211 results about "Spiral heat exchanger" patented technology

The invention discloses a household air source heat pump heating system in cold area and a device thereof, and relates to a heat pump system which uses the air source for running steadily under the low-temperature environment and supplying the interior with the needed heat and healthy hot water and a device thereof. The device comprises parts such as a low pressure frequency compressor, a high pressure compressor, an outdoor heat exchanger, a flash evaporator, a reservoir, a defrosting coil, a flash gas overheating coil, a compressor heat radiating recovery coil, a low pressure air supply pressurization line, a sub-thermal converter, a multi-head efficient spiral heat exchanger, a thermal expansion valve, and the like, which are connected by a pipeline. The invention is characterized in that the system comprises a flash evaporator component, a flash gas overheating coil, a compressor heat radiating recovery coil, and a low pressure air supply pressurization line. When in heat operation under low-temperature working condition, based on the two-stage compression cycle which is incompletely cooled between two stages of throttles, the invention uses the flash gas overheating coil, the compressor heat radiating recovery coil, and the low pressure air supply pressurization line for recovering the heat radiating capacity of a compressor, realizes the overheating of the flash gaseous working substance, enhances the gas transmission capacity of the compressor, and further improves the heat and the energy efficiency ratio of a heat pump system. Meanwhile, the defrosting coil is added to the bottom part of the heat exchanger device, so the frosting problem of the outdoor heat exchanger of the heat pump is solved. The invention can realize the mutual switch among a single heating operating mode in winter, a heating and healthy hot water united operating mode in winter, and a healthy hot water single operating mode during a non-heating period.

The invention discloses a collecting pipe structure for a heat exchanger. A positioning liner is arranged on an opposite side of an interface in an inner cavity of a collecting pipe; an inner end face of a radiating flat pipe is pressed against a positioning surface of the positioning liner; a plurality of ribs are arranged outside the positioning liner; the positioning liner is brazed and fixed on an inner surface of the collecting pipe through the external side faces of the ribs; the space between adjacent ribs forms a medium distribution microchannel; a plurality of medium distribution through holes are formed on the side wall of the positioning liner and are communicated with the medium distribution microchannel; and the number of the medium distribution through holes is reasonably designed so as to uniformly distribute the medium to flow through each flat pipe. The collecting pipe structure for the heat exchanger has the advantages of high positioning consistency of the flat pipe, contribution to uniformly distributing the medium to flow through each flat pipe, achieving the radiating effect of all flat pipes, improving the heat exchange efficiency of the heat exchanger, reducing the possibility that redundant melted solder corrodes products, and contributing to prolonging the service life of the products.

An electric motor has a stator, a rotor, and a helical heat exchanger disposed outboard of the stator. The helical heat exchanger includes: an inner sleeve; an outer sleeve coaxially disposed with and outboard of the inner sleeve with a void therebetween; at least one helical wall disposed in the void between the inner and outer sleeves extending from one end to an opposite end of the inner and outer sleeves; the at least one helical wall forming a fluid tight seal along its helical path to define at least one helical fluid flow path in the void between the inner and outer sleeves; and the at least one helical fluid flow path configured to permit at least one heat transfer medium to helically travel within the void between the inner and outer sleeves.

The invention relates to a spiral heat exchanger including at least two spiral sheets (1, 2) extending along a respective spiral-shaped path about a common center axis (x) and forming at least two spiral-shaped, substantially parallel flow channels (4, 5). Each flow channel (4, 5) permits a heat exchange fluid to flow in a substantially tangential direction with respect to the center axis (x). Each flow channel includes a radially outer orifice, which forms an outlet or an inlet of the respective flow channel and which is located at a radially outer part of the respective flow channel and a radially inner orifice, which enables communication between the respective flow channel and a respective inlet/outlet chamber (13, 14). The center axis (x) extends through the inlet/outlet chamber of the radially inner orifice. The spiral heat exchanger includes a center body (3) extending around the center axis (x) and being closed with respect to the flow channels (4, 5).

A heat exchanger of a structurally self-supporting plate type and provided with an internal flow passage constrained between a first and a second plate and extending between an inlet and an outlet; The flow passage is subdivided in multiple generally parallelly directed longitudinally extending channels with the longitudinally extending channels having continuous joints formed by the two plates; The longitudinally extending channels have an arch-shaped cross-section and the arch-shape of the plates of the channels is in the same face direction orthogonal to the plates; The parallel running longitudinally extending channels include several laterally directed arches relative to their main axis in their longitudinal extension.

A spiral heat exchanger includes two assembled covers defining a chamber therebetween for receiving a spiral unit therein. The spiral unit includes a first and a second spiral member separately spirally extending from a central outlet to a peripheral outlet on the two covers to respectively form a first and a second flow passage. A driving unit is assembled to and drives the assembled covers to rotate at the same time, so that cold and hot airflows respectively enter and flow through the first and second spiral members from the central outlet to the peripheral outlet under a centrifugal force to exchange heat at the spiral unit. The spiral unit provides extended flow passages and increased heat exchange area, giving the spiral heat exchanger increased heat transfer capacity and heat exchange efficiency and allowing omission of fans and radiating fin assembly to eliminate operating noise and accumulated dust.

The present invention relates to a novel plate type spiral heat exchanger, which has the characteristics of a plate heat exchanger, a spiral plate heat exchanger, and a spiral shell tube heat exchanger, and is characterized in that the size is small, the heat exchanging efficiency is high, the countercurrent heat exchange can be operated, the requirement of heat exchange in low temperature difference is met, a modular structure filter is provided, and a novel heat exchanger is easy to disassemble and clean, the present invention is easy for modularization process and assembly production, and the production cost is low. The present invention is particularly suitable for recycling of the after heat of bathing waste water and pre heating clean tap water in the process of household bathing, and more than 60 percent of waste heat can be effectively recycled, and the water heater power can be doubled in the condition of using lower cost and no energy consumption is added.

A vertical heat exchanger is described, which allows efficient elimination of the gas generated therein and efficient removal of the sludge accumulated therein. The vertical heat exchanger has at least part of one end of a vent pipe formed of an upper tube sheet part (an upper cover part in the case of a spiral heat exchanger) and the other end thereof connected outside the heat exchanger to an immediately adjacent fluid passing port passing the same fluid as the vent and/or at least part of one end of a drain pipe formed of a lower tube sheet part (a lower cover part in the case of a spiral heat exchanger) and the other end thereof connected outside the heat exchanger to an immediately adjacent fluid passing port passing the same fluid as the drain.

The invention relates to a spiral heat exchanger comprising a spiral body formed by at least one spiral sheet wound to form the spiral body forming at least a first spiral-shaped flow channel for a first medium and a second spiral-shaped flow channel for a second medium, wherein the spiral body is enclosed by a substantially cylindrical shell being provided with connecting elements communicating with the first flow channel and the second flow channel. At least a part of the spiral heat exchanger is provided with a coating comprising silicon oxide, SiO_x.

Provided are: a heat-exchanger header that can reduce pressure losses, can distribute a refrigerant evenly without causing the heat-transfer performance of the heat exchanger to decrease, and has a simple structure; and a heat exchanger provided with said heat-exchanger header. This heat-exchanger header (10, 20) is used in a heat exchanger in which a refrigerant is run in parallel through a plurality of heat-transfer tubes (30) laid out in parallel. A plurality of through-holes (12) to which one end of each of the plurality of heat-transfer tubes is attached are lined up in the header in the lengthwise direction thereof. At least one chamber (10A) that connects to the plurality of through-holes, forming a refrigerant channel, is formed in the header. Each of the plurality of through-holes is either an entrance-side through-hole or an exit-side through-hole to which either the refrigerant-entrance-side end or the refrigerant-exit-side end of one of the plurality of heat-transfer tubes is attached. A plurality of grooves (14) that extend in the lengthwise direction of the header are formed, in the widthwise direction perpendicular to said lengthwise direction, in the parts of the abovementioned chamber facing the entrance-side through-holes.

A tube case heat exchanger comprises a drum body and a sealing cover positioned at one end of the drum body, wherein a liner is arranged in the drum body; a cooling liquid inlet and a cooling liquid outlet are formed in upper and lower sides of the liner; the liner and the drum are sealed by a liner cover plate; the sealing cover and the cover plate are arranged at the same side; the liner is internally provided with a heat exchange tube bundle structure comprising at least one irregular W-shaped heat exchange tube; each irregular W-shaped heat exchange tube is formed by bending the same straight tube and comprises a first U-shaped tube and a second U-shaped tube which are positioned at different planes and provided with openings in the same direction; respective straight tubes of each first U-shaped tube and the corresponding second U-shaped tube are connected by a bent tube to form a third U-shaped tube with the opening in the opposite direction; the irregular W-shaped heat exchange tubes are uniformly arrayed and arranged along the radial direction of the heat exchanger in a staggering mode; the other straight tubes of the first U-shaped tubes and the second U-shaped tubes penetrate through the cover plate of the liner of the heat exchanger as opening tubes; the opening tubes among different irregular W-shaped heat exchange tubes are serially connected by tube fittings. The tube case heat exchanger is compact in structure, and safe and efficient in use.

A heat exchanger includes a plurality of channels and one or more active flow disruption members disposed at an entrance to the plurality of channels. The active flow disruption members are configured to induce unsteadiness in a flow through the plurality of channels to increase thermal energy transfer in the plurality of channels. A method for transferring thermal energy from a heat exchanger includes locating one or more active flow disruption members at an entrance to a plurality of channels of the heat exchanger. A flow is directed across the one or more active flow disruption members into the plurality of channels and an unsteadiness is produced in the flow via the one or more active flow disruption members. The unsteadiness in the flow increases the transfer of thermal energy between the heat exchanger and the flow.

An object is to provide a heat exchanger including a resonance-prevention baffle plate disposed between a plurality of heat transfer tubes, the resonance-prevention baffle plate being obtainable and mountable readily and at lower cost. A heat exchanger 10 disposed in a flow passage of combustion gas of a boiler or the like includes: a plurality of heat transfer tubes 14 disposed in parallel and spaced from one another, an axial direction of each heat transfer tube intersecting with the combustion gas g, inside a duct wall 12 forming the flow passage of the combustion gas g; and a resonance-prevention baffle 16 having a plate shape and disposed along the combustion gas g and between the heat transfer tubes 14, the resonance-prevention baffle including a metal foil sheet 18.

The invention provides a spiral heat exchanger and a manufacturing method thereof and an air conditioner. The spiral heat exchanger comprises a heat exchange pipe and a plurality of fins, the heat exchange pipe is spirally wound to be cylindrical, the centers of the fins are provided with mounting holes matched with the heat exchange pipe, and the outer portion of the heat exchange pipe is sleeved with the fins at intervals through the mounting holes. Air can be sucked around the spiral heat exchanger; compared with a mode that a traditional plane-shaped heat exchanger can only suck air with one side, the windward area of the spiral heat exchanger is increased by 2-3 times, and integral heat exchange efficiency of the spiral heat exchanger is greatly improved; in addition, according to the spiral heat exchanger, a semicircular connecting pipe does not need to be welded to the heat exchange pipe, the bending process and cost of the semicircular pipe are reduced, the technical risk of refrigerant leakage caused by poor pipe opening welding is avoided, the manufacturing of the spiral heat exchanger becomes simple and convenient, product quality is effectively guaranteed, and product production efficiency is improved.

The invention discloses a detachable spiral heat exchanger and a manufacturing method thereof. The detachable spiral heat exchanger comprises a shell, two pairs of outlets and inlets, a supporting framework, a first heat exchange plate and a second heat exchange plate, the outlets and the inlets are arranged on the shell, and the first heat exchange plate and the second heat exchange plate are arranged in the shell and are spirally alternately wound by taking the supporting framework as a center. As the supporting framework is firstly arranged and then the first heat exchange plate and the second heat exchange plate are wound by taking the supporting framework as the center, uneven deformation of the first heat exchange plate and the second heat exchange plate can be effectively prevented in winding.

The invention discloses a high-performance energy-saving commercial steamer. The steamer comprises a steam control layer and a steaming chamber, a slidable heat insulation layer is arranged at the upper end of the steaming chamber, the steaming chamber is internally provided with a steaming rack, a first gravity sensor is arranged at the lower portion of each steaming case, and a second gravity sensor is arranged at the bottom of the steaming chamber; the steam control layer is internally provided with a water tank, a steam generating chamber, a gas combustor and a controller, the water tank is connected with the steam generating chamber, the outer layer of the steam generating chamber is provided with an electromagnetic induction coil, the steam generating chamber is internally provided with a heat exchanger combustion chamber, a residual heat recycling pipe connected with the heat exchanger combustion chamber through a first air suction device is arranged around the gas combustor, asteam pipe connected with a stem inlet pipe is arranged at the upper portion of the steam generating chamber, and the heat exchanger combustion chamber is provided with a hot gas recycling pipe connected with a spiral heat exchanger through a third air suction device. The high-performance energy-saving commercial steamer prevents energy waste and is safer to use. The invention further discloses acontrol method of the high-performance energy-saving commercial steamer.