Protocolfactory the heat exchanger

 

(57) Abstract:



 

Same patents:

FIELD: heat-power engineering; plate-type and tubular recuperative heat exchangers.

SUBSTANCE: proposed heat-exchange surface is corrugated according to first version; ratio of pitch of corrugation to their height is equal to 4.0-12.0; height of corrugations does not exceed two thicknesses of heat-exchange surface (at its thickness not exceeding 0.5 mm); corrugations are made in one or in two mutually perpendicular directions. According to second versions, heat-exchange surface is corrugated and ratio of corrugations to their height is equal to 4.0-12.0; height of corrugations does not exceed two thicknesses of heat-exchange surface (at its thickness not exceeding 0.5 mm); tops of corrugations have notches in form of round holes having diameter of 0.5-1.0 of thickness of heat exchange surface. Besides that, notches are made in form of slots whose length is equal to 2.5-10, width is equal to 0.5-1.0 and distance between slots is equal to 5.0-10.0 of heat-exchange surface thickness and corrugations are made in one or two mutually perpendicular directions.

EFFECT: intensification of heat exchange process at retained serviceability in contaminated air medium through increase of area of heat-exchange surface at constant mass; increased thermal capacity of heat exchanger.

5 cl, 5 dwg

FIELD: heat exchangers with flat plates, as well as their gaskets.

SUBSTANCE: the gasket designed for use in a heat-exchange device, having heat-exchange plates provided with the first and second sides, edge and a groove located on its first side and passing along the edge at a certain distance from it, includes: the elongated main part placed in the groove and sealing the connections between the mentioned first and second heat-exchange plates when the mentioned second heat-exchange plate is held pressed to the first plate; and at least one part of the plate seizure that includes at least one coupling member coming in engagement with the part of the plate on its first side, the mentioned coupling member is made integral with the mentioned coupling member is made integral with the mentioned main part of the gasket, breaks away from it in the transverse direction, crosses the plate edge and has a free end; and at least one claw connected to the mentioned free end of each mentioned coupling member by means of a hinged joint and made so that it can be bent relative to the mentioned coupling member for giving it such a position in which it engages the second side of a definite part of the plate. Besides, the claw has an initial, non-operating position in which it is inclined at a definite angle relative to the mentioned coupling member, and the mentioned hinged joint acts in such a manner that each mentioned claw can be turned and bent, bringing it from the mentioned non-operating position to a position, in which it gets engaged with the second side of the plate part under the action of the force with which the mentioned claw strives for return to its non-operating position. The invention makes it possible to produce a gasket in a plate heat-exchange device, which has clamping members for application to the heat exchanger plate of a considerable clamping force in the transverse direction so as to provide a reliable retention of the gasket on the plate in the necessary position before compression of the unit.

EFFECT: enhanced reliability.

24 cl, 41 dwg

FIELD: heat-exchange apparatuses for gaseous heat-transfer agents, whose temperature, pressure and flow rate in service may vary within a wide range.

SUBSTANCE: the method consists- in heat transfer by means of fins separating the flow-through cavities of each heat-transfer agent into parallel-connected ducts, and plates separating the adjacent flow-through cavities of different heat-transfer agents; - intensification of heat exchange of the heat-transfer agent with the fins washed by it at flowing agent with the fins washed by it at flowing of heat-transfer agents through the parallel-connected ducts of the respective flow-through cavity due to the flow of the heat-transfer agent through the perforated holes in the fins between the adjacent parallel-connected ducts as a result of fluctuation of static pressure differentials in the ducts, or at a regular destruction of the boundary layer of the heat-transfer agent in the joints of the fin sections located in succession in the direction of flow of the heat-transfer agent; - limitation of flow of the heat-transfer agent between the parallel-connected ducts of the flow-through cavity through the fin perforation holes or in the joints of the non-perforated fin sections located in succession in the direction of flow of the heat-transfer agent, to this end, the flow of the heat-transfer agent in the flow-through cavity is separated into several flows separated from one another. The heat-exchange apparatus includes: - alternating flow-through cavities of cooling and cooled heat-transfer agents formed by the separating plates of heat-conducting material; - flow-through cavities of both heat-transfer agents separated into out-of-round in cross section parallel-connected ducts by the respective fins of heat-conducting material being in a heat contact with the separating plates; - fins in each flow-through cavity, even of one heat-transfer agent, perforated or staggered in the direction of its motion with formation of several successively located sections of parallel-connected ducts so that the fin in the second and the subsequent in the direction of flow of the heat-transfer agent sections is shifted across this direction relative to both fins of the previous section making up the duct just before the shifted fin, the ducts between the fins with the adjacent sections are of a different length; -each of the flow-through cavities of the heat-transfer agent with the sections of the adjacent ducts of a different length separated by impermeable alls into several parallel-connected sections.

EFFECT: reduced weight and cross-section dimensions of the heat-exchange apparatus characterized by a sufficiently high heat transfer within a wide range of temperates, pressures and flow rates of heat-transfer agents.

3 cl, 7 dwg

FIELD: heat-exchange apparatuses with fixed ducts for two heat-transfer agents, in which the ducts are formed by separating plates, having perforated fins located inside there ducts.

SUBSTANCE: the method for intensification of heat exchange of two heat-transfer agents consists in heat transfer by means of perforated fins separating the flow-through cavities of each heat-transfer agent into parallel-connected ducts, and plates separating the adjacent flow-through ducts of different heat-transfer agents; at a flow of heat-transfer agents through the parallel-connected ducts of the respective flow-through cavity, heat exchange of the heat-transfer agent with the perforated fins washed by it is intensified due to the flow of the heat-transfer agent through the perforated holes in the fins between the adjacent parallel-connected ducts as a result of fluctuation of static pressure differentials in them, or t a regular destruction of the boundary layer of the heat-transfer agent on them due to the location of the perforated fins in the direction of flow of the heat-transfer agent in approximately staggered order with formation of several successively positioned sections of parallel-connected ducts so that the perforated fin in the second and subsequent sections in the direction of flow of the heat-transfer agent is shifted across this direction relative to the perforated fins of the previous section. The heat-exchange apparatus has alternating flow-through cavities of cooling and cooled heat-transfer agents formed by the separating plates of heat-conducting material, besides, the flow-through cavities of both heat-transfer agents are separated into out-of-round in cross section parallel-connected ducts by the respective fins of heat-conducting material being in a heat contact with the separating plates, the perforated fins in each flow-through cavity even of one heat-transfer agent staggered with formation of several successively located sections of parallel-connected ducts so that the perforated fin in the second and the subsequent sections in the direction of flow of the heat-transfer agent is shifted across-this direction relative to both perforated fins of the previous section making up the duct just before the shifted perforated fin, the length of the fin in each of the successively located sections of the ducts of the cooling heat-transfer agent makes up 20 to 60 quotients obtained when the averaged duct section area in the section is divided by the averaged duct section area in the section to the averaged perimeter of one duct.

EFFECT: reduced weight and cross-section of the small-sized heat-exchange apparatus characterized by a sufficiently high heat transfer within a wide range of temperatures, pressures and flow rates of heat-transfer agents.

3 cl, 7 dwg

FIELD: heat-power engineering; heat exchange apparatus; power engineering; chemical, food-processing and other industries.

SUBSTANCE: proposed plate-type heat exchanger includes hold-down plates and stack of corrugated plates with angular collector holes, distributing tubes mounted in angular holes of hold-down plates and plates of stack; distributing tubes have through longitudinal slots in their center part which are used for passage of heat-exchanging media, bearing bead on one end and external thread on other end; distributing tubes may be used for compression of plates of stack by hold-down plates by means of nuts screwed on thread; holes of distributing tubes are blanked-off on side of bearing bead; external surfaces of center part of tubes are made at clearance relative to holes of plates of stack for proper positioning of plates during assembly; holes of hold-down plates are provided with seals over engageable external surfaces of tubes.

EFFECT: reduced overall dimensions of heat exchanger; enhanced compactness; ease of mounting.

3 dwg

FIELD: ventilation, air conditioning and waste recovery of exhaust air.

SUBSTANCE: the recuperative plate heat exchanger consists of porous plates with ribs, the plates are made of capillary-porous wettable plastic, and the ribs are made integral with the main surface of the plates in the form of stiffening ribs parallel with the air flows and made up perpendicularly to one another in deferent ducts, the plates are installed both vertically and horizontally.

EFFECT: simplified and cheapened the construction of the heat exchanger, adaptability of its manufacture and enhanced efficiency.

FIELD: agriculture: heat engineering equipment for poultry and stock-rearing.

SUBSTANCE: the invention is dealt with the field of agricultural heat engineering equipment ensuring a heat transfer from one heat-exchanger to another in presence of aggressive corrosion-influencing components in one of them. The equipment may be used in the gas-air ventilation facilities of heat recovery in poultry and stock-rearing farms. The method of production of a cross-running heat exchanger out of a polymeric material containing a package made out of polymeric cellular plates bound to each other and encased in a box ensuring an inlet and an outlet of warm and cool air streams. At that the cellular plates located in one direction in a package are bound to each other by a two-sided polymeric adhesive tape through gaskets made out of the same polymer and placed along the surface and perpendicularly to directions of cells in a plate, are kept till full polymerization of the joints with following formation of the package on all its corners with metal angle sections into a rigid metal framework. At that in one of the vertical sides of the angle section they drill some bores ensuring a free running of a liquid. Then using a sliding fit the package is inserted in the guides made out of the angle sections and mounted perpendicularly to the corners of the air-distributive box so, that the bores of the lower corner of the package meet the bores of a lateral wall of a guide. The package is fixed in the guides formed by the metal angle sections. The bores of the lower angle section of a guide should be located opposite to the bores drilled-in in the lower wall of the air channel of the box placed above a draining container. The invention ensures the necessary tightness of the channels linking the heat exchangers, possibility to use the heat exchangers at low temperatures and also to increase the cost efficiency of the polymeric material cutting.

EFFECT: the invention ensures the necessary tightness of the channels linking the heat exchangers, possibility to use the heat exchangers at low temperatures and increased the cost efficiency of the polymeric material cutting.

2 dwg

FIELD: applicable in devices for conduction of heat exchanging processes between two media through a wall, in particular, in chemical, food, petroleum refining branches of industry.

SUBSTANCE: the heat exchanger plate bunch has a heat exchanger bank assembled of plane-parallel plates with bundles welded in pairs in boxes fixed at the ends in tube plates with a clearance to one another and forming tubular and intertubular ducts for input and output of the hot and cold products, two plane-parallel plates with partitions for overlapping the free area of the cross-section between the plate and the body of the heat exchanger, seal belt and a detachable mounting-transport support, the heat exchanger bank is made of several successively connected modules, each provided with two side shields made in the form of plates located along the bank, except its terminal zone, and secured on the plane-parallel plates, tube and intertube headers are formed in the zones of connection of the modules. Besides, in the bunch of the plate heat exchanger the tube header is made in the form of closed plane in the central part of the bank of the adjacent modules, and the intertube header is made with two channels, one channel on each lateral side of the bank, each channel is formed by an additional shield that is mounted in the terminal zone between the shields of the adjacent modules and connected to these shields and to the plane-parallel plates. The section of each channel of the intertube header is made in the form of a segment restricted from one side by the arc of the additional shield, whose radius equals half the diagonal of the bunch section, and from the other side - by a chord, whose length equal the width of the shield plate. The seal belt is made in the form of a cylinder-shaped obturator and installed in the zone of product output from the intertube channels.

EFFECT: simplified procedure of manufacture, transportation and mounting of the bunch in the body of the heat exchanger, improved conditions of heat exchanger sealing at passage of the heat exchange products through it, reduced expenditures on manufacture.

8 dwg, 4 cl

FIELD: usage of heat of secondary power resources in boiler rooms and ventilation systems.

SUBSTANCE: plate-type heat exchanger has stack of aluminum plates with spacer insertions to form channels for working media. Stack is placed inside casing fastened by rods. As spacer insertions the stiffening ribs are used having groove. Internal space of the groove is filled with high-temperature sealing compound to form a layer of sealing compound high as 1-1.5 mm. Stiffening ribs are disposed in perpendicular to surface of aluminum plate and in parallel to each other as well as to board of heat exchange at distance of 150-200 mm. Groove with internal space is formed onto aluminum plate by means of stamping. Air-tightness of assembly is improved due to usage of more efficient swirlers to provide higher efficiency factor of heat exchanger.

EFFECT: improved manufacturability.

2 cl, 3 dwg

FIELD: HEAT EXCHANGE APPARATUS FOR HEATING TAP WATER.

SUBSTANCE: proposed heat exchange apparatus for heating tap water by means of primary liquid includes plate-type heat exchanger with stack of plates having through holes which form passages with heat exchange passages in between them; some passages are used for flow of tap water and some passages are used for flow of primary liquid; heat-exchange apparatus is provided with valve for control of primary liquid flow and temperature sensor for action on valve. Method of check of flow of primary liquid in heat exchange unit is based on use of primary liquid.

EFFECT: enhanced efficiency; enhanced reliability of joints between tube and plate in plate-type heat exchanger.

11 cl, 3 dwg

FIELD: applicable in devices for conduction of heat exchanging processes between two media through a wall, in particular, in chemical, food, petroleum refining branches of industry.

SUBSTANCE: the heat exchanger plate bunch has a heat exchanger bank assembled of plane-parallel plates with bundles welded in pairs in boxes fixed at the ends in tube plates with a clearance to one another and forming tubular and intertubular ducts for input and output of the hot and cold products, two plane-parallel plates with partitions for overlapping the free area of the cross-section between the plate and the body of the heat exchanger, seal belt and a detachable mounting-transport support, the heat exchanger bank is made of several successively connected modules, each provided with two side shields made in the form of plates located along the bank, except its terminal zone, and secured on the plane-parallel plates, tube and intertube headers are formed in the zones of connection of the modules. Besides, in the bunch of the plate heat exchanger the tube header is made in the form of closed plane in the central part of the bank of the adjacent modules, and the intertube header is made with two channels, one channel on each lateral side of the bank, each channel is formed by an additional shield that is mounted in the terminal zone between the shields of the adjacent modules and connected to these shields and to the plane-parallel plates. The section of each channel of the intertube header is made in the form of a segment restricted from one side by the arc of the additional shield, whose radius equals half the diagonal of the bunch section, and from the other side - by a chord, whose length equal the width of the shield plate. The seal belt is made in the form of a cylinder-shaped obturator and installed in the zone of product output from the intertube channels.

EFFECT: simplified procedure of manufacture, transportation and mounting of the bunch in the body of the heat exchanger, improved conditions of heat exchanger sealing at passage of the heat exchange products through it, reduced expenditures on manufacture.

8 dwg, 4 cl

FIELD: heat power engineering, machine engineering, possibly manufacture of members of heat exchanges or reinforcing members.

SUBSTANCE: ribbed sheet panel includes base made of metallic sheet and having outer ribs welded to base by action of HF-currents. Base has protrusions on its rear side. Relation of protrusion height to thickness of base is in range 0.8 - 2.0. In order to make such panel, cylindrical blank of metallic sheet being base of panel is shaped to helix. Ribs are welded by means of HF- currents to outer side of base along helix. Then ribbed panel is developed till predetermined curvature radius. On rear side of panel base protrusions are made by pressing-in ribs at process of their welding to outer side of base and(or) by forming.

EFFECT: enhanced operational characteristics of panels.

8 cl, 2 ex

FIELD: power industry.

SUBSTANCE: circuit for cooling high-beat areas of structures consists of internal profiled shell, on external surface of which there are made ribs of cooling circuit, and of external profiled shell installed on internal one and bound with it by tops of ribs of cooling circuit. Hollow bridges interconnecting tops of ribs are made between ribs of the cooling circuit. Also bridges interconnect tops of all ribs forming single circular surface to increase stability of shells. For improvement of conditions of heat release lengthwise ribs are made on internal fire surface of the internal shell.

EFFECT: increased stability and durability of internal and external shells.

3 cl, 2 dwg

FIELD: power industry.

SUBSTANCE: circuit for cooling high-beat areas of structures consists of internal profiled shell, on external surface of which there are made ribs of cooling circuit, and of external profiled shell installed on internal one and bound with it by tops of ribs. Blades parallel to a bottom of a slot are made on tops of the circuit ribs; also external profile of blades corresponds to internal profile of the external shell. Blades tie tops of two adjacent ribs between them to increase strength and stability of shells. Also blades interconnect tops of all ribs forming single circular surface. For improvement of conditions of heat release lengthwise ribs are made on internal fire surface of the internal shell.

EFFECT: increased stability and durability of internal and external shells.

4 cl, 4 dwg

FIELD: power engineering.

SUBSTANCE: corrugated insert for a plate heat exchanger comprises double-sided asymmetrical hollows made as rounded along a rounding radius and forming narrowing sections of each channel, arranged with an equivalent hydraulic diametre making 0.65-0.92 of an equivalent hydraulic diametre of a smooth section of the channel, with the height of a corrugation channel, equal to 4-6 steps of corrugation ribs, the ratio of the value of the outer radius R of coupled surfaces of double-sided asymmetrical bores forming adjacent and smoothly rounded ledges and grooves of asymmetrical bores transverse to direction of the coolant flow, to the value of the equivalent hydraulic diametre of the smooth section of the channel d is equal to 0.05-0.20 (R/d=0.05-0.20), at the same time the maximum length n of the section of transverse ledges and grooves at corrugation ribs is determined as the distance between areas of coupling with radius R1 of side faces of the section of transverse ledges and grooves of double-sided asymmetrical bores with corrugation ribs, at the same time coupling of side faces of the section of double-sided asymmetrical bores with corrugation ribs along the coupling radius R1 is arranged at the distance k from the area of coupling of the radius part of corrugation tops with their ribs, equal to or more than the value of the half of the inner rounding radius of corrugation tops R2 (k≥0.5*R2), and sections of side faces of transverse ledges and grooves of asymmetrical bored are arranged in the form of coupled differently directed two arcs of identical radius R1, besides, at the peripheral sections of the corrugation ribs at the coolant inlet and outlet from the corrugated insert to create smooth peripheral sections of the triangular sections there are equidistantly arranged indents of double-sided symmetrical bores with the depth h1, the value of which is twice less than the depth h2 of indents of double-sided asymmetrical bores (h1=0.5*h2).

EFFECT: higher thermal-hydraulic efficiency of a corrugated insert for a plate heat exchanger and quality of their manufacturing.

FIELD: power industry.

SUBSTANCE: plate-type heat exchanger matrix includes intermediate shaped plate-turbuliser with the same relief geometry, which is located between heat release shaped surfaces.

EFFECT: considerable increase in the ratio of flow passages of shaped channels for adjacent heat carriers and their high heat power efficiency.

4 dwg

Radiator // 2509970

FIELD: heating.

SUBSTANCE: radiator includes a wall and heat exchange elements forming external and internal finning. External finning consists of straight projections alternating with passes the cross sectional area of which in upper part of the wall is smaller than in its middle part, and internal finning consists of alternating passes separated with fins and having the cross sectional area of a constant value and passes with cross sectional area of a variable value, which are made as close as possible to outside surface of the straight projection. Straight projections are located opposite passes with cross sectional area of the variable value of the internal finning. In order to mix air and increase the area of the radiator heat-removing surface, there is at least one through hole in the projections.

EFFECT: improving cooling efficiency of an electronic device.

2 cl, 6 dwg

Heat exchange panel // 2550229

FIELD: heating.

SUBSTANCE: heat exchange panel contains a heat exchange header, heat conducting elements and heating sectional block for liquid heating medium with lid, adjacent cells are hydraulically isolated from each other. Sections of the heating block are made as closed vertical cells out of plates. The heat conducting elements are made as comb, each its element is located both in heat exchange header, and in bottom part of the cells of the heating block. The internal surface of the side walls of sections in their cross-section is made curvilinear and concave. Internal cavities of cells of sections of the heating block are equipped with separating transverse vertical partitions. Internal cavities of cells of sections of the heating block are equipped with separating longitudinal vertical partitions. Internal sections of the heating block are installed with air gap.

EFFECT: improvement of heat output.

4 cl, 5 dwg

FIELD: heating.

SUBSTANCE: cooling circuit of heat-stressed structures includes an internal shaped cover, on the outer surface of which there are ribs of the cooling circuit, an external shaped cover installed in the internal one and attached to it at tops of ribs of the cooling circuit; with that, the above covers and ribs form cooling channels. Between ribs of the cooling circuit there are hollow connection straps attaching tops of ribs to each other. Connection straps are made so that they attach groups of ribs to each other, which contain preferably three ribs each. Between the above groups of ribs, on each of their sides, there is a channel, the width of which is equal to width of a cooling channel at connection strap location point. Adjacent connection straps are located with an offset relative to each other by a value equal to width of the cooling channel at their location point; with that, width of connection straps is equal to width of the cooling channel at the connection strap location point.

EFFECT: improving stability and strength of internal and external covers of the structure.

2 dwg

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