CN1110682C - Heat exchanger - Google Patents
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- CN1110682C CN1110682C CN 97102217 CN97102217A CN1110682C CN 1110682 C CN1110682 C CN 1110682C CN 97102217 CN97102217 CN 97102217 CN 97102217 A CN97102217 A CN 97102217A CN 1110682 C CN1110682 C CN 1110682C
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a heat exchanger 1 with a plate type form, comprising a heat exchanging plate 10. The heat exchanging plate 10 of this plate type heat exchanger is provided with a heat transfer surface on a substantially circular plate and fluid flow openings 15a and 15b opened for first fluid which heat exchange with each other and fluid flow openings 16a and 16b opened for second fluid which heat exchange with each other, with the heat transfer surface provided therebetween. These openings are respectively opened in the vicinities of the peripheral edge part 11 of the plate. Thus, the fluid directed toward the peripheral edge part of the plate from the openings is guided circumferentially along the circular arc shaped peripheral edge part of the plate. Accordingly, the retention phenomenon of the fluid is not generated, nor pressure loss or foreign materials appear on the heat transfer surface.
Description
The present invention relates to a kind of heat-exchangers of the plate type, the application in specific heat exchange purposes of the improvement of the heat-exchangers of the plate type of saying so in more detail and this heat-exchangers of the plate type.
The advantage of heat-exchangers of the plate type is that hot percent of pass is big, compact conformation.For example, known shown in Fig. 7,8 typical heat-exchangers of the plate type be that heat exchanger plate 60 is overlapped, and carry out air seal and liquid sealing by pad 61,61a, be connected with between former frame frame plate 71 and the rear frame panel 72 bolt hole 71a ... 72a, 72a ..., put on fastening bolt and fastening fixing.Heat-exchangers of the plate type be such heat exchanger plate 60,60 ..., between former frame frame plate 71 and the rear frame panel 72, by pad 61 carry out the sealing of gas and liquid, overlaping forms.In such heat exchanger, enter the first fluid of opening 64 from first inlet 75 of front frame board 71 downsides, shown in arrow 73, be diverted to the 1st fluid flowing path (the 1st fluid flowing path forms every a slice) and to rising between heat exchanger plate, collaborate once more at opening 65, flow out from first outlet 76.On the other hand, second fluid that carries out heat exchange with first fluid, enter into the stream of band opening 63 from second inlet 78 on front frame board top, on the shunting stream of second fluid of the shunting stream adjacency by heat exchanger plate and first fluid, carry out heat exchange while descending with adverse current state and first fluid, at opening 62 interflow, flow to the outside of heat exchanger from second outlet 77.
In such heat-exchangers of the plate type, the increase and decrease of its capacity, because its heat exchanger plate of increase and decrease gets final product, so it is very free, in addition, because the surface of heat exchanger plate 60 can be cleaned fully, so be suitable for handling solution, the fluid that must keep the germ-free condition and the state of cleaning or the highly purified fluid etc. that crystallization is separated out on the surface of heat exchanger plate easily.The 69th, insert the breach of admittance bar, pad 61a be used for a side shape mouth to 62,63 and the opposing party's opening separate 64,65.
On the contrary, the shortcoming of heat-exchangers of the plate type is: because the narrow gaps between the heat-transfer area that fluid passes through, so it is big extraordinarily that the pressure loss of per unit flow process is compared with the heat exchanger of other types, be difficult to maximize, in addition, the type of above-mentioned use pad is considered from the hear resistance aspect, and serviceability temperature exists the limit of boundary and working pressure low etc.
In order to overcome these shortcomings, in the prior art, replace the sealing that is accommodated in heat exchanger plate in the housing or adopts pad, can the heat exchanger plate that clinch will overlap mutually by solder brazing (soldering) make an integral body or the like.Particularly, the latter makes the heat exchanger of whole pattern with solder brazing, and its resistance to pressure is fine, but different with the pad pattern, can not decompose cleaning, material adheres on heat-transfer area and deposition is difficult to remove, and I'm afraid that according to the difference of its purposes this is a fatal shortcoming.
The inventor is in order to overcome the shortcoming of these heat-exchangerss of the plate type, when attempting repeatedly, tried, for example, in the existing heat exchanger plate 60 with heat-transfer area (this heat-transfer area press be formed with " people " font projection 68) as described above, less changing opening 62 from a side to the state of the length of the heat-transfer area of opposite side opening 63, for enlarging the purpose of heat-transfer area, the shape of heat exchanger plate 60, soon vertically long rectangle are enlarged to laterally (in other words making it near square) at Fig. 6.
The fluid that present hypothesis should be carried out a side of heat exchange flows to the opening 63 that is positioned at topmost from the opening 62 that is positioned at foot, then the shape of heat exchanger plate 60 approaches square more, the stream 67 that tilts (this stream 67 is from the lateral margin 66 of opening 62 towards the distant place) approaches level more and becomes mild, and side slow 66 stops liquid stream to increase to the mobile power of this lateral margin from opening 62.Therefore, a difficult problem is to compare with the mobile of other directions to flowing of lateral margin 66 from opening 62, it is big that the pressure loss becomes, and the stagnation behavior of liquid stream appears,, one-tenth in the heat-exchange fluid analyzes, is attached on the heat exchanger plate, or the deposition of solid in the heat-exchange fluid adheres to, and occurs clogging easily.Especially, the present inventor find the deposition of foreign matter and separate out phenomenon occur in for the periphery of the opening of the gateway of fluid particularly remarkable, become the main reason that produces obstruction (its keeps former can produce the pressure loss to motionless), thereby finished central topic of the present invention.
In addition, the inventor is with regard to heat-exchangers of the plate type of the present invention, find when seeking its application aspect optimal concrete purposes, as its first concrete purposes, be by heat exchanger of the present invention being assembled in the refrigerating circuit, can solving the unsolved technical problem that is occurred in the refrigerator in the past.For example, shown in Figure 9 is an example of existing refrigerating plant.The formation of refrigerating circuit is among Fig. 9: with coolant conduits coolant compressor 80, condenser 81, thermal expansion valve 83, evaporimeter 84, storage heater 85 are coupled together, make it become closed loop.Liquid refrigerant component separation the cold-producing medium that storage heater (or gas-liquid separator) 85 will be gone out from the outlet 84a of evaporimeter 84, store, by from the heat of outside atmosphere and the thermal source etc. that is attached to the storage heater outside with its gasification.Prevent that liquid from turning back to the appearance of compressor 80 these phenomenons.
In addition, thermal expansion valve 83 control refrigerant flows are so that its degree of superheat (super heat degree) that will go out the refrigerant gas of flash-pot 84 remains on certain value.Therefore to detect the refrigerant temperature of evaporator outlet exactly.Therefore, in order to detect its temperature, upside at the refrigerant pipe 86 that connects evaporator outlet and storage heater 85, and in the position that goes out 84a near evaporimeter as far as possible, set up, fixing temperature sensing tube 87, and it is covered with heat-insulating material, connect this temperature sensing tube 87 and thermal expansion valves 83 with capillary 88, detect near the refrigerant temperature of 84a, will be added on the diaphragm valve of expansion valve 83 corresponding to the temperature sensing tube pressure of detected temperatures.
Its shortcoming of such existing apparatus is, in any case also need the coolant conduits 86 from the evaporimeter to the storage heater, at pressure vessel--connect the labourious time of operation of coolant conduits 86 on the storage heater 85, and do as a whole, install complicatedly, the sort of type volume is big.In addition, the problem that exists is: its structure is that temperature sensing tube passes through coolant conduits and contacts with cold-producing medium indirectly, difference according to installation quality, detection limit is easy to generate error, the contact site of temperature sensing tube and coolant conduits will process its surface, so that conduct heat well, and must install made its really contact gone up, install and want skilled etc.
The inventor finds, heat exchanger of the present invention is as second concrete purposes, when heat exchanger of the present invention was used with heat exchanger as compressed-air actuated cooling and dehumidifying, contribution significantly aspect the miniaturization of existing compressed air dehydrating unit and performance raising.For example, compressed air dehumidifying shown in Figure 12 is made an integral body with heat exchanger with 2 groups of heat-exchangerss of the plate type 160,180 and is made, this heat-exchangers of the plate type the 160, the 180th, and overlap joint is roughly rectangular heat exchanger plate and makes.On the end plate 160a of the end plate 160a of a side heat-exchangers of the plate type 160, be provided with the refrigerant inlet 161 and the refrigerant outlet 162 of refrigerator, refrigerant flow path 163 is by connecting inlet 161 and export that stream is constituted between 162 heat exchanger plate, and refrigerant flow path 163 is actually the evaporimeter of refrigerator.On the end plate 180a of the opposing party's heat-exchangers of the plate type 180, be provided with hot and humid compressed-air actuated discharge air intake 181, this compressed air is discharged from air compressor, precooling stream 185 is made of the stream between the heat exchanger plate that connects this inlet 181, connected entrance 171 is opened on the common border end plate 170 of two heat-exchanger 160,180, above-mentioned refrigerant flow path 163 in compressed-air actuated cooling flowing path 165 and the heat exchanger 160 is adjacent, and precooling stream 185 is connected with compressed-air actuated cooling flowing path 165 by connected entrance 171.
Pressure-resistant pipeline 172 is connected with the dehumidifying compressed air outlet 164 that is opened in end plate 160a below, the compressed-air actuated inlet 183 that dehumidifies is opened in the top of the end plate 180a of heat exchanger 180, compressed air in the cooling flowing path 165 passes the outside that pressure-resistant pipeline 172 is discharged to heat exchanger 160, after process is arranged at this ducted separator 175, once more from the compressed-air actuated inlet 183 that dehumidifies, on the again hot-fluid road 184 adjacent, descend with precooling stream 185, under the adverse current state, carry out heat exchange with discharge compressed air, heated once more, supplied to load from dried compressed air supply pipe 182.
Such device can be realized the miniaturization of heat exchange department, but reasons in structure because of heat-exchangers of the plate type, the pressure loss is big, and be difficult to the discharger of condensed water (producing in compressed-air actuated cooling procedure) is set in the heat exchanger, therefore, will (size of profile is identical with heat exchange unit 160 almost with separator 175 dividually with heat exchange department, in Figure 12, separator is too small because of the restricted representation of paper) be arranged on the next door or the below of heat exchange department, it must be installed in the centre of pressure-resistant pipeline 172, this pressure-resistant pipeline 172 is being provided with to making a circulation the air intake 183 that is opened in another end plate 180a from the air outlet slit 164 that is opened in an end plate 160a, make it around the heat exchange department half cycle, its shortcoming is: whole device is maximized, need the bigger space that is provided with, and useless space appears around pipeline, the heat loss that comes from pipeline in addition is big, in addition, packing and transportation are inconvenient, and the connection of pipeline needs labour and time etc. when installing.
It is little and maximize and to be relatively easy to heat-exchangers of the plate type that the 1st purpose of the present invention is to disclose a kind of pressure loss.
The 2nd purpose of the present invention is to disclose a kind of material adhering to and separate out few heat-exchangers of the plate type to heat-transfer area.
The 3rd purpose of the present invention is to disclose a kind ofly compares the little freezer heat exchanger that also can implement of installing space with existing apparatus.
The 4th purpose of the present invention is to disclose a kind of evaporimeter heat exchanger skilled, the easy refrigerating plant of assembling that do not need when the assembling refrigerator.
Not free hysteresis when the 5th purpose of the present invention is to disclose a kind of detection system refrigerant temperature, and can carry out the refrigerator device evaporimeter of refrigerant flow control accurately.
The 6th purpose of the present invention is to provide easy compressed air dehydrating unit heat exchangers such as a kind of whole profile is simple and miniaturization, manufacturing, packing, transportation, installation.
The 7th purpose of the present invention be to disclose a kind of small-sized, heat loss is little, and cheap compressed air dehydrating unit heat exchanger.
The 8th purpose of the present invention is to provide the compressed air dehumidifying that a kind of resistance to pressure is fine, the pressure loss is little, heat exchanger effectiveness is high heat exchanger.
First main points of the present invention are: heat-exchangers of the plate type, with a plurality of heat exchanger plates overlap joint, fixing and carry out gas, liquid sealing, between above-mentioned heat exchanger plate, with mutual adjacent state the first fluid that should carry out heat exchange mutually and first stream and second stream of second fluid are set alternately, it is characterized in that: each heat exchanger plate has the ovalisation heat-transfer area of (comprising circle), and is equipped with a convection cell overcurrent mouth of above-mentioned first fluid and a convection cell overcurrent mouth of above-mentioned second fluid across this heat-transfer area; Have guide surface, cross head piece by above-mentioned 2 convection cells and be opened in respectively near the dull and stereotyped periphery, this guide surface guiding is flowed along the dull and stereotyped circumference that becomes arcuation to the fluid that dull and stereotyped circumference flows from this opening.
The heat-exchangers of the plate type of above-mentioned first main points, concerning heat-transfer area, even only be that intact flat board is good, or by for the male and fomale(M﹠F) that enlarges male and fomale(M﹠F) that heat transfer area designs, for example constituted by " people " font projection or wrinkle projection etc. good.When fluid is crossed head piece synform one-tenth or the outflow of the heat exchange stream between heat-transfer area from fluid, on its outflow direction, in fact there is not the lateral margin that bumps against, weakens its force and velocity of a current with liquid stream, even the liquid that flows out from an opening flows because its outflow direction is opposite with the direction of another opening, also can induced and flowed smoothly along the circumference that becomes arcuation, so can there not be liquid stream stagnation behavior, the strong mistake also of pressure lacked, and can prevent that the foreign matter that in the past usually took place from depositing on heat-transfer area, adhering to crystal and separate out phenomenon.It is maximum that such effect becomes when the heat-transfer area shape of heat exchanger plate is roughly circle.Therefore, be shaped as under the oval-shaped situation at the heat-transfer area of heat exchanger plate, the length of this long axis of ellipse and minor axis approaches 1 than more, and in other words shape approaches circle more, and above-mentioned effect is excellent more.
Second main points of the present invention are, in the determined heat-exchangers of the plate type of above-mentioned first main points, it is characterized in that: be arranged at fluid on this heat exchanger plate and cross head piece and be roughly ellipse respectively, this ellipse extends along the dull and stereotyped circumference that becomes arcuation, and the clinch of the heat exchanger plate that adjoins each other is combined as a whole with solder brazing.
The heat-exchangers of the plate type of above-mentioned second main points, work as gas, the phase lap is on time hermetically for liquid, in order to cross gas in the head piece at 2 convection cells, liquid is isolated a pair of a pair of head piece of crossing of crossing head piece and the opposing party of the side hermetically, when the opening of the heat exchanger plate that makes adjacency is adjacent to mutually, do not need to be equivalent to resemble the encapsulant of pad 61a as shown in Figure 7, because the mutual isolation of 2 pairs of mistake head pieces can fasten as one by the very low range that will cross the head piece circumference realize, further reduce along the main cause of the mobile impetus of existing circular-arc circumference so stop fluid.In addition, because roughly the fluid of ovalisation shape is crossed head piece and is not also changed aperture area, assurance has sufficient aperture area, can obtain the distance between its opening and the circular-arc circumference fully, so consequently strengthened the effect of the direct fluid of dull and stereotyped circumference.Therefore, prevent because of the effect of adhering to and stopping up of leading the heat exchanger dirt that thing causes fine, by heat exchanger plate is combined as a whole.Can alleviate shortcoming significantly, can enlarge its purposes in some aspects because of not decomposing, cleaning, as require the high-purity aspect, detest avoid aspects such as assorted bacterium breeding or the purposes aspect high-pressure fluid.
The 3rd main points of the present invention are refrigerant condenser and/or the refrigerant evaporator of the determined heat-exchangers of the plate type of above-mentioned second main points as refrigerator used.Because the determined heat-exchangers of the plate type of above-mentioned second main points has the profile that is roughly drum, junction surface between each heat exchanger plate is combined into one, so comparing with existing heat-exchangers of the plate type has high compression resistance, the heat-exchanging part that can be used as refrigerator is assembled in the refrigerator.Therefore, refrigerator can miniaturization, and it is also easy to assemble.
The 4th main points of the present invention are, in the determined heat-exchangers of the plate type of above-mentioned the 2nd main points, it is characterized in that: this heat-exchangers of the plate type is with the refrigerant evaporator of its first fluid stream as the refrigerant flow path of freeze cycle, does not have cold-producing medium shunting stream, cold-producing medium evaporation stream, cold-producing medium interflow stream and refrigerant outlet on this heat-exchangers of the plate type; Offer refrigerant inlet on its front plate, cold-producing medium shunting stream is connected with this refrigerant inlet; Cold-producing medium evaporation stream is adjacent with the fluid that is cooled by heat exchanger plate; Cold-producing medium interflow stream makes this cold-producing medium evaporation passage confluent; In the end of this cold-producing medium interflow stream, refrigerant outlet is opened on the end plates of above-mentioned heat-exchangers of the plate type, is formed with the storage heater with pressure vessel and refrigerant line on these end plates; This pressure vessel includes refrigerant outlet, extends from these end plates to be provided with; Refrigerant line makes this pressure vessel internal upper part space open wide the outside of this pressure vessel.
Heat-exchangers of the plate type, because heat exchanger effectiveness height, so easy miniaturization of evaporimeter, the storage heater that forms as one with it, because both sizes can average out, so the utmost point has the one sense, and, be integrally formed on the face of the refrigerant outlet that offers evaporimeter because become the pressure vessel and the evaporimeter of storage heater, and in this pressure vessel, directly offer the refrigerant outlet of evaporimeter, so, there is no need to be provided with necessary in the past, be communicated with the refrigerant outlet of evaporimeter and the coolant conduits of storage heater, device can miniaturization and and simplification, it is also easy to assemble, and can also reduce cost.Also have, as heat-exchangers of the plate type, if adopt words by the formed heat-exchangers of the plate type of heat exchanger plate of heat-transfer area with circular, refrigerant outlet can be opened on the round nose panel of this heat-exchangers of the plate type, if keep gas, liquid from the circumference of these end plates cylindrical vessel (cylinder of a side obturation) to be set hermetically, then pressure vessel can form easy as can, and the end plates of evaporimeter also are the walls of storage heater, so miniaturization and is possible.The not occasion of total same parts of pressure vessel and evaporimeter is also arranged certainly.But under the situation of total same parts, in the saving and the lightweight of parts, there are some advantages aspects such as easy to manufactureization.
Five points of the present invention is, in the determined heat-exchangers of the plate type of above-mentioned the 4th main points, it is characterized in that: in the stream of the cold-producing medium interflow of heat-exchangers of the plate type, being equipped with can be to regulating first fluid stream, the refrigerant temperature checkout gear that the refrigerant flow adjusting device of refrigerant flow transmits control signal.
The refrigerating plant of the heat-exchangers of the plate type of above-mentioned five points as refrigerant evaporator, because refrigerant temperature checkout gear (for example temperature sensing tube) is inserted directly into (promptly the gasification back is to the stream of the mobile cold-producing medium of refrigerant outlet) in the stream of cold-producing medium interflow, so it is different with the situation of in the past mensuration coolant conduits temperature, near the direct contact evapouration outlet cold-producing medium, can be accurately and perception refrigerant temperature promptly, send its detection limit to refrigerant flow adjusting device (for example thermal expansion valve), can further improve the precision of control.Also have, the place that the refrigerant temperature checkout gear is set is not limited to the interflow stream of heat exchanger, for example, also this refrigerant temperature checkout gear can be set under making its state of facing the refrigerant outlet in the storage heater.
The 6th main points of the present invention are, compressed air dehumidifying heat exchanger, by horizontal placement withstand voltage cylindrical container constituted, the both sides, water separation chamber that condensate water extraction device is equipped with in the bottom, be provided with board-like first and second heat exchangers integratedly with above-mentioned separation chamber with heat exchanger plate, this heat exchanger plate has the ellipse heat-transfer area of (comprising circle), on above-mentioned board-like first heat exchanger, be provided with refrigerant flow path and compressed-air actuated cooling flowing path, this cooling flowing path is adjacent by heat exchanger plate and this refrigerant flow path, on above-mentioned board-like second heat exchanger, be formed with the precooling stream and the compressed-air actuated hot-fluid again of the dehumidifying road of high-temperature Wet Compression air, this hot and humid compressed air is discharged from air compressor, hot-fluid road is adjacent by heat exchanger plate and this precooling stream again for this, be communicated with the outlet of above-mentioned precooling stream and the inlet of above-mentioned cooling flowing path by the connection stream that connects above-mentioned water separation chamber, and the outlet of above-mentioned cooling flowing path is connected with the inlet on above-mentioned hot-fluid again road by above-mentioned water separation chamber.
The face of above-mentioned withstand voltage cylindrical container both sides is the plane preferably, and this face also can doublely be made the end plates (rear frame panel) of board-like first and second heat exchangers.As heat-exchangers of the plate type, can use heat exchanger plates such as " people " font plate or buckle plate overlap, by the pad that sets make its surround fluid flowing path, with fastening fixed types such as bolts, also can use with heat exchanger plate be accommodated in type in the housing of good rigidly or the like, but for the consideration of resistance to pressure aspect, compressed air dehumidifying with heat exchanger be suitable for most adopting replace above-mentioned with gasket seal with soldering (solder brazing) with the be combined as a whole heat exchanger of this type of formation stream of junction surface.
Bottom in the water separation chamber is provided with opening, as the condensate water extraction device that under the state of gas, liquid sealing, connects this opening, can enumerate the example that combination constituted by electromagnetic switch valve etc., this electromagnetic switch valve is to make its action by the suitable level sensor such as float-type level sensor or electrostatic capacity type level sensor and the detection signal of this sensor.Though be communicated with stream and can be the pipe of the cooling flowing path inlet of the outlet of the precooling stream that under the state of two ends gas, liquid sealing, is connected in second heat exchanger and first heat exchanger, but also can be under the state of gas, liquid sealing, only the water separation chamber is divided into the next door outlet that comprises above-mentioned precooling stream and cooling flowing path inlet the space and comprise the space that condensation is discharged with opening, do not comprised above-mentioned two gateways.
The compressed air dehydrating unit heat exchanger of above-mentioned the 6th main points makes the inlet of the precooling stream of second heat exchanger be connected with the blast pipe of air compressor, but the outlet on hot-fluid road is connected with compressed-air actuated supply pipe.In addition, the inlet of the refrigerant flow path of first heat exchanger is connected with the low-pressure side pipeline of the swollen device that rises of refrigerator, outlet is connected with the suction side pipeline of coolant compressor by storage heater.Hot and humid compressed air from air compressor passes the precooling stream, carries out heat exchange with the temperature and pressure air that contracts that removes of the low temperature that passes again the hot-fluid road, then enters cooling flowing path from being communicated with stream, by the refrigerant cools of refrigerator to dew point.The compressed air that passes cooling flowing path in the water separation chamber by bulk storage in very big space, flow velocity is weakened and is rotated in the separation chamber, at this moment, be dispersed in small drop-shaped condensed water in the air-flow attached to wall be communicated with the outside of stream, realized gas-liquid separation.Then remove warm dried compressed air and enter hot-fluid road again, be discharged from compressed air here and heat again, under the drying regime that relative humidity has reduced, be fed into load.
The heat exchanger of above-mentioned the 6th main points, because the profile of heat exchanger plate heat-transfer area is oval (comprising circle), so in fact do not have corner part on the stream of heat-exchange fluid, do not have the part of fluid retention on from the fluid intake of heat exchanger to the stream of fluid issuing.Therefore, as first and second heat exchangers, though needn't worry that resistance to pressure and anti-cold-producing medium are very excellent, but can not decompose cleaning, even adopt above-mentioned with the be combined as a whole heat-exchangers of the plate type of pattern of soldering, also have deposit at the corner part of heat exchanger and adhere to, hinder fluid and flow or reduce heat exchanger effectiveness thereby cause.In addition, the separator that becomes tubular rotates easily, mixes because contain the air of the fine particle of water too, and air-flow is not detained, so the separative efficiency height of moisture, can realize miniaturization.
The 7th main points of the present invention are, the determined compressed air dehumidifying of above-mentioned the 6th main points heat exchanger, it is characterized in that: each heat exchanger plate that constitutes first and second heat exchangers, possesses the heat-transfer area that is roughly circular contour, have across 2 convection cells of this heat-transfer area setting and cross head piece, this 2 convection cell is crossed roughly ovalisation of head piece difference, this ellipse Yangjing plate circumference extends, and having guide surface, this guide surface guiding is flowed along becoming circular-arc dull and stereotyped circumference to guide to the fluid that dull and stereotyped circumference flows from this opening.
The compressed air dehumidifying heat exchanger of above-mentioned the 7th main points, in fact do not exist when fluid when fluid is crossed the head piece synform and is formed in the hot road of heat exchange between heat-transfer area and flows out, on its outflow direction, bump against with liquid stream, weaken the lateral margin of its force and velocity of a current, even the liquid stream that flows out from a side opening its to flow out direction be liquid stream with the reverse flow of another opening, also can induced and flowed along the circumference that becomes arcuation, stagnate this phenomenon so do not exist liquid stream to be decelerated, the pressure loss is also little, can prevent that also the foreign matter that in the past usually occurred from depositing on heat-transfer area, the generation of attachment phenomenon.Therefore, the compressed-air actuated pressure loss is minimum, in compressed-air actuated cooling and dehumidifying efficient and also extremely excellent aspect the heated drying efficient again.
Fig. 1 is the diagrammatic illustration figure that sees heat exchanger the 1st embodiment of the present invention from the A-A section direction of Fig. 2.
Shown in Figure 2 is the skeleton diagram that constitutes the heat exchanger plate of heat exchanger shown in Figure 1.
Fig. 3 is the key diagram of Fig. 2 B-B section.
Shown in Figure 4 is the brief description figure that is used to measure the device of heat exchanger plate effect of the present invention.
Fig. 5 is the time history plot of the pressure loss of expression heat exchanger plate of the present invention and existing heat exchanger plate.
Fig. 6 is the skeleton diagram that expression is assembled into the 2nd embodiment of the present invention state in the refrigerator.
Fig. 7 is the decomposition key diagram that an example of existing heat-exchangers of the plate type is represented with its effect.
Fig. 8 is the skeleton diagram that expression is assembled in the details of the heat exchanger plate among Fig. 7.
Shown in Figure 9 is the key diagram of the existing refrigerating plant of an example.
Figure 10 is the key diagram of expression compressed air dehumidifying of the present invention with the simple outward appearance of heat exchanger one embodiment.
Shown in Figure 11 is the key diagram of the model of the structure of heat exchanger shown in Figure 10 and effect.
The key diagram that is a routine existing compressed air dehumidifying with heat exchanger shown in Figure 12.
Heat-exchangers of the plate type 1 is that heat exchanger plate 10 as shown in Figure 2 is overlapping, makes by by solder brazing its joint portion being combined as a whole.According to the difference of heat exchanger plate metal material, the corresponding employing of solder brazing is made heat exchanger plate 10 bodies with soldering lug, the method that in stove, heats then and the solder of sheet is placed in the middle of, the method that in vacuum drying oven, heats then.
Heat exchanger plate 10 is made by being roughly circular metallic plate, at its circumference 11, with enlarged-diameter a bit and the state that upwards erects, is formed with and founds edge 12.The ora terminalis that should go up upright edge 12 is to radially (go up relatively upright edge Shang cube to rectangular direction roughly) bending, thereby forms flange part 12a, and this flange part 12a makes from the roughly conglobate circumference of the last upright edge 12 formations certain width that stretches out.Upper and lower at circular metal plate among Fig. 2 leaves some pars, and " people " font projection 13 by punching press formation peak sigmoid constitutes the heat-transfer area 14 that is roughly circle.
Clip this heat-transfer area 14, between above-mentioned par and circumference 11, leave some compartment of terrains and be equipped with a pair of first fluid and cross head piece 15a and 15b and a pair of second fluid and cross head piece 16a and 16b.The position that these cross head piece 15a, 15b, 16a, 16b is to make them in mutually orthogonal 2 imaginary lines in heat exchanger plate center, the imaginary line of level relatively, and opening 15a becomes the line symmetry respectively with 16b, vertical relatively imaginary line with 15b, opening 16a.Opening 15a becomes the line symmetry with 16a, opening 15b respectively with 16b.Opening separately is roughly elliptical shape, and on leave the space that fluid flows between the upright edge 12, this ellipse extends along the direction of the circular arc elongation of last upright edge 12 (or circumference 11).
Overlap joint is by such heat exchanger plate that structure constituted 10, make between its adjacent panels, the bending direction of " people " font projection is opposite mutually, by by the fibre weldering portion of taking being combined as a whole, alternately forms the heat exchange stream of first fluid and the heat exchange stream of second fluid between heat exchanger plate.In Fig. 2, the opening periphery 16c of opening 16a, 16b, among the 16d, the surface of its opening periphery (paper surface) is combined as a whole with the opening periphery of another heat exchanger plate 10a (with reference to Fig. 3), and this heat exchanger plate 10a is from top overlapping with heat exchanger plate 10 Fig. 2.Equally, the opening periphery of opening 15a, 15b is combined as a whole with the opening periphery of another heat exchanger plate that connects from the paper back side.
If like this overlap joint for one the front of heat exchanger plate, front frame board 2 is installed, rear frame panel 3 is installed overleaf, on any one frame plate, be provided with the gateway of heat-exchange fluid, then just made heat exchanger, in Fig. 2, if to cross head piece be 15a to the product side of going into of first fluid, then in Fig. 1, the fluid that enters from the first fluid inlet that is opened on the afterframe anti-3, be diverted to many heat exchange streams that are formed between the heat exchanger plate, between heat-transfer area, flow, and cross interflow, head piece 15b place at outlet side, cross head piece 15b with this and be connected, export the outside that (figure does not show) is discharged to heat exchanger from the first fluid that is arranged on any frame plate.
Under the situation that first fluid and second fluid flow with the adverse current state, crossing head piece 16b is the inlet of second fluid, and corresponding with this inlet, the former frame frame plate is provided with second fluid intake 6, the below cross head piece 16a for exporting.First and second fluids flow with adjacent state by the heat-transfer area of heat exchanger plate, carry out heat exchange.At this moment, the fluid that enters heat exchanger 1 flows to the heat exchange stream from crossing the formed shunting stream of head piece 15a (perhaps 16b).At this moment, being radial from the liquid stream of crossing head piece 15a (perhaps 16b) ceaselessly flows to from all directions from this opening.
Particularly, because reverse liquid stream is also guided by being arranged at the upright edge 12 of going up of circular-arc circumference 11 with exporting 15b, so also do not have trapping phenomena.Compare with right-hand part from outlet because of the left side of the heat-transfer area 14 of Fig. 2 and to want far away, so be vulnerable to the influence of the pressure loss, but since opening 16a and and this opening also guarantee between the upright edge 12 opposed to have first fluid that arcuation extends by space 18, so liquid flows to this direction and is more prone to mobile, do not have trapping phenomena.Therefore, improve rate of heat exchange, and can prevent deposition of foreign material, adhere to and separate out, can prevent the pollution and the obstruction of heat-transfer area.The above, specially action effect of the present invention has been illustrated in outlet, much less, have circular-arc circumference heat exchanger plate its go into product and also show same effect, promptly, the fluid of heat-transfer area of flowing through is directed to inlet by circular-arc circumference, flow into from all quarter in the opening periphery, because of being detained can not appear in the direction difference that flows into.
Embodiment
The inventor is for the heat exchanger plate that relatively has the circular contour heat-transfer area and have the performance of the heat exchanger plate of square heat-transfer area, has carried out following experiment.Adopt permanent mo(u)lding method to cast test specimen S, the R that is formed with the heat exchange stream in the dull and stereotyped inside of aluminium, its heat exchange stream has the heat-transfer area that is made of " people " font projection, wherein the profile of the heat exchange stream of test specimen S is square (brachmorphy), the profile of the heat exchange stream of another test specimen R is circular, make the circular fluid of same diameter cross head piece 21,22 respectively form respectively a pair of, as the gateway of liquid.Two test specimen heat transfer surface area are identical.
Thermostat 23 remains on 5 ℃ by Control device of liquid cooling 24, retention basin 29 stores the saturated alum solution that is remained on 60 ℃ by heater H, these two test specimen S, R are immersed in the thermostat 23, and with having pump 25, the pipe of stream switch valve 27, pressure gauge 26 and flowmeter 20 is connected inlet and the retention basin 29 of above-mentioned test specimen S, R, simultaneously, the same pipe that pressure gauge 28 is housed with the centre is connected respectively to above-mentioned retention basin with the outlet of two test specimens.At the flow of the alum solution that flows through from test specimen is under 1.5 liters of per minutes, 2.5 liters, 3.5 liters the situation, measures the pressure loss that changes (per 10～20) minute in time (pressure gauge 26 and 28 pressure reduction).It is the results are shown in Fig. 5.
As indicated in Fig. 5, to compare with the heat exchanger plate of rectangle, the circular heat exchanger plate test specimen pressure loss is little, and especially if flow reaches certain limit when above, the pressure loss is variation in time hardly.In addition, in Fig. 5, the occasion of 0 expression circular heat power board, represents the occasion of dihedral heat exchanger plate.
The empirical equation P=ae that derives by the resulting curve of foundation Fig. 5
Bt(P: the pressure loss, a, b: constant, t: the time, e: the end of exponential function) the time constant T that calculates (T=1/b) is shown in table 1.Time constant T has represented the not susceptible to plugging degree of heat exchanger quantitatively.Table 1 clearly demonstrates the superiority of circular heat-exchangers of the plate type.
Table 1 time constant (branch)
| 1.5 liters of per minutes | 2.5 liters of per minutes | 3.5 liters of per minutes | |
| Rectangle | 37 | 74 | 74 |
| Circular | 79 | 94 | ∞ |
Shown in Figure 6 is pattern under the situation that the 2nd embodiment of heat-exchangers of the plate type of the present invention is used as the evaporimeter 35 of refrigerator.Refrigerating plant 31 is to be interconnected, be communicated with by expansion valve 34, evaporimeter 35 and the storage heater 38 of coolant conduits with compressor 32, condenser 33, thermal, so that it constitutes cold-producing medium circulation stream.Evaporimeter 35 is made of heat-exchangers of the plate type, by a plurality of heat exchanger plates 10,10 with the identical structure of heat exchanger plate shown in Figure 2 are set between roughly rounded front plate 35a and identical shaped end plates 36b ... and constitute.
Such heat exchanger plate 10 of evaporimeter 35 is to overlap under the mutually opposite state between the direction adjacent panels that makes " people " font pattern, by soldering (solder brazing), forms the heat exchange stream between mutually adjacent heat exchanger plate.The opening 16a of Fig. 2 is connected with the refrigerant inlet that is opened in front plate 35a bottom, constitutes shunting stream 35d.This shunting stream 35d will be diverted to each refrigerant flow path (heat exchange stream) that is formed between the heat exchanger plate from the cold-producing medium that this refrigerant inlet 35c enters.In addition, opening 16b becomes interflow stream 35e, and cold-producing medium flows into each refrigerant flow path from shunting stream 35d, after the fluids that are cooled such as water by heat exchanger plate and adjacency or air carry out heat exchange, collaborates again.Make the refrigerant outlet 35f that is arranged in these end plates 35b top face the end of the end plates 35b side of this interflow stream 35e.
On the other hand, among Fig. 2, the opening 15b, the 15a that on position, are provided with about the vertical diameter of heat exchanger plate 10 and opening 16b, 16a symmetry, form the interflow stream (stream that is constituted by opening 15a) of the fluid that is cooled of shunting stream (by the stream that opening 15b is constituted, this shunting stream fluid that will be cooled is diverted to the fluid flowing path that is cooled that abuts to form with above-mentioned each refrigerant flow path) and this fluid flowing path that is cooled of flowing through too respectively.Corresponding with the end of this two stream respectively inlet (figure does not show) and the outlet (figure does not show) that is arranged at the fluid that is cooled on the front plate 5a is connected this shunting stream 15b with shunting stream 15a.
The 37th, as the temperature sensing tube that detects the refrigerant temperature device, be inserted in the stream 35e of interflow, keep airtight close in this temperature sensing tube with liquid, lead to the pipe 37a that protrudes in the evaporimeter outside from front plate top, the diaphragm upside space interior with thermal expansion valve 34 (being the refrigerant flow adjusting device of regulating the refrigerant flow in the inflow evaporator refrigerant flow path) is connected.
By the circumference from the end plates 35b of such evaporimeter 35 extend with this end plates one, with the 36a of end socket portion with the one side closed cylindrical portion 36b that makes, be formed with pressure vessel 36, constitute by the storage heater that pressure vessel constituted 38 that has refrigerant outlet 35f by this pressure vessel 36 and end plates 35b in the evaporimeter side.Upper space in this storage heater 38, an end 39a of suction line 39 are opening mouth, and the top 36c that this suction line 39 connects pressure vessels projects to outside the pressure vessel, and carry out gas, liquid sealing, and its other end is connected with the suction inlet of compressor 32.
In the above-mentioned refrigerating plant 31, the cold-producing medium one side rising refrigerant flow path that enters the shunting stream 35d of evaporimeter 35 from expansion valve 34 is carried out heat exchange by the adjacent fluid that is cooled in heat exchanger plate 10 and its both sides on one side, stream 35e flows through around temperature sensing tube 37 at the interflow, enters in the storage heater 38 from refrigerant outlet.Because temperature sensing tube 37 directly with the gasification of just carrying out heat exchange cold-producing medium contact, so the action that can promptly detect refrigerant temperature, thermal expansion valve 34 can the life period hysteresis, also can further improve the control accuracy of refrigerant flow.
The refrigerating plant of the invention described above, because evaporimeter and storage heater are made overall structure, so do not connect both coolant conduits, volume is little, simple, can save the labour and the time of assembling pipeline, and the space of placing is little also can implement.In addition, have at evaporimeter under the situation of the round sides of being roughly, with the parts that constitute its round sides with bulge is as easy as rolling off a log that storage heater is made of one.Particularly, under the situation that heat-exchangers of the plate type (this heat-exchangers of the plate type has the heat exchanger plate of circular heat-transfer area) is used as evaporimeter, come in and go out among Fig. 2 evaporimeter 35 fluid the corner that does not exist fluid to remain in a standstill easily around opening 15a, the 15b of heat exchanger plate 10,16a, the 16b, fluid by arcuation on upright edge 12 guidings flow to from all directions from opening, so thereby can prevent to flow stops, piling up the performance reduction that dirt makes evaporimeter in the surface attachment of heat exchanger plate.In addition, because temperature sensing tube directly detects the temperature of cold-producing medium, so can improve the precision of flow-control.
Figure 10 and Figure 11 are the example of compressed air dehumidifying of the present invention with heat exchanger.At Figure 10, compressed air of the present invention dehumidifying is by being the left and right sides of columnar separator 102 with heat exchanger 100, board-like first heat exchanger 103 and board-like second heat exchanger 104 is designed to one makes.Separator 102 has withstand voltage cylindrical vessel 121.The center line of this container 121 is laterally horizontally-arranged, its circular side panel 123,124 double respectively end plates of doing first heat exchanger 103 and second heat exchanger, 104 1 sides.First heat exchanger 103 and second heat exchanger 104 are by being that one constitutes with the heat exchanger plate overlap joint identical with circular heat power board shown in Figure 2 10 simultaneously with solder brazing.Aspect its structure, effect, effect, in fact identical with the disclosed heat exchanger of embodiment 11.
In Figure 11, second heat exchanger 104 below second heat exchanger, 104 end plates 140, has precooling stream inlet 141 to the end plate of the side plate 124 of separator 102 as heat exchanger, and this inlet 141 connects the blast pipe of air compressor.This precooling stream inlet 141 connects to the heat exchange flow road from shunting stream 142a and is precooling stream 142 and then is communicated with precooling flowing path outlet 143 from interflow stream 142b, this interflow stream 142b is positioned at the top of second heat exchanger, and this precooling flowing path outlet 143 is opened on the side plate 124.In addition, on second heat exchanger 104, dehumidifying compressed air outlet 144 is arranged at the top of front plate 140, this outlet 144 is connected with the road of the hot-fluid again inlet of offering in the bottom of side plate 124 146, make it in order by dehumidifying compressed-air actuated hot-fluid again road 145 and shunting stream 145a, hot-fluid road 145 and shunting stream 145a are adjacent by heat exchanger plate and set stream 145b, above-mentioned precooling stream 142 again for these.
On the other hand, on the front plate 130 of first heat exchanger 103, be provided with refrigerant inlet 131 in its underpart, connecting on this refrigerant inlet 131 from the swollen device that rises of the cold-producing medium of refrigerator 200 low pressure line of (figure does not show).This refrigerant inlet 131 is connected with the refrigerant outlet 132 on front plate 130 tops through heat exchange stream one cold-producing medium evaporation stream 133.In addition, the side plate 123 double end plates of making first heat exchanger 103, offer cooling flowing path on the top of side plate 123 and go into product 134, this inlet 134 is being communicated with cooling flowing path outlet 136 through cooling flowing path 135, this cooling flowing path 135 is adjacent by heat exchanger plate and cold-producing medium evaporation stream 133, and this cooling flowing path outlet is opened in the bottom of side plate 123.
Be opened in the precooling flowing path outlet 143 and the above-mentioned cooling flowing path inlet 134 on the top of side plate 124, with water separation chamber 102 in the isolated state in space under, with interconnecting communicating pipe 125, this communicating pipe 125 surrounds these two openings and is anchored on the side plate 123,124 by airtight and liquid is close at the two ends of body.The 122nd, condensed water discharging means, portalling with the condensation flow that is arranged in 102 bottoms, water separation chamber 126 is connected, in keep the level switch that detects by float, have magnetic valve with its switching of signal controlling.
Above-mentioned compressed air dehumidifying is used to connect air compressor and refrigerator 200 with heat exchanger 100.Hot and humid compressed air from the air compressor discharge, from precooling stream inlet 141 process by precooling stream 142, with carried out heat exchange by the low temperature compressed air after the dehumidification treatments, after by precooling, through communicating pipe 125 entering cooling flowing path 135.The refrigerant cools that is frozen machine 200 the process that flows down from this stream 135 is to dew point, and the condensed water that is accompanied by vaporific dispersion enters broad water separation chamber from narrow cooling flowing path outlet 136.Air-flow rotates along separation chamber's perisporium, thereby make attachment of moisture in the wall after separating, go into the process that product 146 rise through the road of hot-fluid again 145 of second heat exchanger 104 from hot-fluid road again, temperature rises, relative humidity is reduced, discharge from exporting 144 as the compressed air of drying.Also have, in the separation chamber, be provided with the air-flow contact component of catching water droplet, for example balk board moves brokenly if make from the air-flow of cooling flowing path outlet to hot-fluid road inlet motion again, can improve the separative efficiency of water.
Existing compressed air dehumidifying heat exchanger, owing to connect heat exchange department and separator by pipeline, has complicated shape, need labour and time during assembling, also need the useless space that is provided with around the pipeline in addition, carry, be provided with etc. also inconvenient, but heat exchanger of the present invention, by very balancedly 2 heat-exchangerss of the plate type being equipped on integratedly the structure of the both sides of separator, can realize miniaturization and, and pattern, aspect advantages such as space, bale packing, carrying, assembling are many saving.In addition, in case existing apparatus is big to the outermost heat loss of heat exchanger by pipeline leakage because of compressed air, so must carry out thermal insulation to these pipelines covers, and change filter termly, but both having had such heat loss, device of the present invention do not need to carry out thermal insulation covering processing yet, do not need filter maintenance and replacing yet, and because the little dirt of heat-exchangers of the plate type with circular heat-transfer area is attached on the plate face, so can keep the heat exchanger effectiveness at initial stage chronically, also very outstanding aspect the operational maintenance of device.
Claims (7)
1. a heat-exchangers of the plate type (1), a plurality of heat exchanger plates (10) are overlapped, fixing, and carry out gas, the liquid sealing, between above-mentioned heat exchanger plate, with mutual adjacent state the first fluid that should carry out heat exchange mutually and first stream and second stream of second fluid are set alternately, it is characterized in that: each heat exchanger plate (10) has the ovalisation heat-transfer area of (comprising circle) (14), and be equipped with a pair of fluid inlet and outlet (15a of above-mentioned first fluid across this heat-transfer area, 15b) and a pair of fluid inlet and outlet (16a of above-mentioned second fluid, 16b), guide surface is arranged at above-mentioned 2 convection cells when importing and exporting separately circumference, by above-mentioned 2 pairs of import and export are opened in respectively near the dull and stereotyped circumference (11), guide from this fluid inlet and flow along the dull and stereotyped circumference that becomes arcuation to the fluid that dull and stereotyped circumference (11) flows.
2. the heat-exchangers of the plate type put down in writing of claim 1, it is characterized in that: be arranged at the fluid inlet and outlet (15a on this heat exchanger plate, 15b, 16a, 16b) be roughly ellipse respectively, this ellipse extends along the dull and stereotyped circumference (11) that becomes arcuation, and the clinch of the heat exchanger plate that adjoins each other is combined as a whole with solder brazing.
3. the heat-exchangers of the plate type of claim 2 is characterized in that: the refrigerant condenser and/or the refrigerant evaporator that can constitute refrigerator.
4. the heat-exchangers of the plate type of claim 2, it is characterized in that: heat-exchangers of the plate type (35) is with the refrigerant evaporator (35) of its first fluid stream as the refrigerant flow path of freeze cycle, is provided with cold-producing medium shunting stream (35d), cold-producing medium evaporation stream, cold-producing medium interflow stream (35e) and refrigerant outlet (35f) on this heat-exchangers of the plate type; Offer refrigerant inlet (35c) on its front plate, cold-producing medium shunting stream (35d) is connected with this refrigerant inlet; Cold-producing medium evaporation stream is adjacent with the fluid that is cooled by heat exchanger plate (10); Cold-producing medium interflow stream (35e) makes this cold-producing medium evaporation passage confluent; In the end of this cold-producing medium interflow stream (35e), refrigerant outlet (35f) is opened on the end plates (35b) of above-mentioned heat-exchangers of the plate type; On these end plates (35b), be formed with the storage heater of have pressure vessel (36b) and refrigerant line (39); This pressure vessel (36b) includes refrigerant outlet, extends from these end plates to be provided with; Refrigerant line (39) makes this pressure vessel internal upper part space open wide the outside of this pressure vessel.
5. the heat-exchangers of the plate type of claim 4, it is characterized in that: in the stream of the cold-producing medium interflow of heat-exchangers of the plate type, the refrigerant temperature checkout gear (37) that can transmit control signal to the refrigerant flow adjusting device of adjusting first fluid stream refrigerant flow is installed.
6. a compressed air dehumidifies and uses heat exchanger, it is characterized in that: constituted at withstand voltage cylindrical container (121) by horizontal placement, the bottom is equipped with the both sides of the water separation chamber (102) of condensate water extraction device (122), be provided with board-like first and second heat exchangers with heat exchanger plate (10) integratedly with above-mentioned water separation chamber, this heat exchanger plate (10) has the ellipse heat-transfer area of (comprising circle); Be provided with refrigerant flow path (133) and compressed-air actuated cooling flowing path (135) on above-mentioned first heat exchanger (103), this cooling flowing path (135) is adjacent by heat exchanger plate and this refrigerant flow path; On above-mentioned second heat exchanger (104), be formed with hot and humid compressed-air actuated precooling stream (142) and dehumidifying compressed-air actuated hot-fluid again road (145), this again hot-fluid road (145) adjacent by heat exchanger plate and this precooling stream, be communicated with the outlet of above-mentioned precooling stream and the inlet of above-mentioned cooling flowing path by the connection stream (125) that connects above-mentioned water separation chamber, and the outlet of above-mentioned cooling flowing path (136) is connected with the inlet (146) on above-mentioned hot-fluid again road by above-mentioned water separation chamber, each heat exchanger plate (10) that constitutes first and second heat exchangers all has across 2 convection cells of heat-transfer area imports and exports (15a, 15b, 16a, 16b) and the guide surface that is used to guide the fluid that flows to dull and stereotyped circumference from this fluid inlet to flow along circumference.
7. the compressed air of claim 6 dehumidifies and uses heat exchanger, it is characterized in that: the heat-transfer area that constitutes the heat exchanger of first and second interchangers is circular, each ovalisation that above-mentioned 2 convection cells are imported and exported is also extended along dull and stereotyped circumference, and the guide surface that guides above-mentioned fluid is a circular arc.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23278/96 | 1996-01-16 | ||
| JP8023278A JP2863481B2 (en) | 1996-01-16 | 1996-01-16 | Heat exchanger for compressed air dehumidification |
| JP23278/1996 | 1996-01-16 | ||
| JP8023279A JP3070723B2 (en) | 1996-01-16 | 1996-01-16 | Refrigeration equipment |
| JP23279/1996 | 1996-01-16 | ||
| JP23279/96 | 1996-01-16 | ||
| JP8050828A JP3030248B2 (en) | 1996-02-13 | 1996-02-13 | Heat exchanger |
| JP50828/96 | 1996-02-13 | ||
| JP50828/1996 | 1996-02-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1163389A CN1163389A (en) | 1997-10-29 |
| CN1110682C true CN1110682C (en) | 2003-06-04 |
Family
ID=27284191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97102217 Expired - Fee Related CN1110682C (en) | 1996-01-16 | 1997-01-13 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1110682C (en) |
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| SE529916C2 (en) * | 2005-07-22 | 2008-01-08 | Swep Int Ab | Compact air dryer |
| US8607974B2 (en) | 2008-12-22 | 2013-12-17 | British America Tobacco (Holdings) Limited | Pack for smoking articles |
| KR100950689B1 (en) * | 2009-04-16 | 2010-03-31 | 한국델파이주식회사 | Plate type heat exchanger |
| CN103069246B (en) | 2010-06-24 | 2016-02-03 | 北狄空气应对加拿大公司 | Liquid-to-air membrane energy exchanger |
| CN102052874A (en) * | 2011-01-13 | 2011-05-11 | 江苏宝得换热设备有限公司 | Plate type heat exchanger with high bearing pressure |
| US8915092B2 (en) | 2011-01-19 | 2014-12-23 | Venmar Ces, Inc. | Heat pump system having a pre-processing module |
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| US9816760B2 (en) | 2012-08-24 | 2017-11-14 | Nortek Air Solutions Canada, Inc. | Liquid panel assembly |
| CN102826620B (en) * | 2012-09-25 | 2013-12-04 | 东莞日之泉蒸馏水有限公司 | Energy-saving water distiller |
| US9772124B2 (en) | 2013-03-13 | 2017-09-26 | Nortek Air Solutions Canada, Inc. | Heat pump defrosting system and method |
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| US10352628B2 (en) | 2013-03-14 | 2019-07-16 | Nortek Air Solutions Canada, Inc. | Membrane-integrated energy exchange assembly |
| US10584884B2 (en) | 2013-03-15 | 2020-03-10 | Nortek Air Solutions Canada, Inc. | Control system and method for a liquid desiccant air delivery system |
| US11408681B2 (en) | 2013-03-15 | 2022-08-09 | Nortek Air Solations Canada, Iac. | Evaporative cooling system with liquid-to-air membrane energy exchanger |
| DE112015002074T5 (en) * | 2014-04-29 | 2017-02-23 | Dana Canada Corporation | Intercooler with multipart plastic housing |
| DK3183051T3 (en) | 2014-08-19 | 2020-06-02 | Nortek Air Solutions Canada Inc | LIQUID-TO-LUFTMEMBRANENERGIVEKSLERE |
| US11092349B2 (en) | 2015-05-15 | 2021-08-17 | Nortek Air Solutions Canada, Inc. | Systems and methods for providing cooling to a heat load |
| CN107850335B (en) | 2015-05-15 | 2021-02-19 | 北狄空气应对加拿大公司 | Liquid cooling using liquid-gas membrane energy exchangers |
| EP3314188B1 (en) | 2015-06-26 | 2021-05-12 | Nortek Air Solutions Canada, Inc. | Three-fluid liquid to air membrane energy exchanger |
| CN107850396A (en) * | 2015-06-29 | 2018-03-27 | 开利公司 | Two-phase partitioning device evaporator |
| SG10201913897RA (en) | 2016-03-08 | 2020-03-30 | Nortek Air Solutions Canada Inc | Systems and methods for providing cooling to a heat load |
| US11892193B2 (en) | 2017-04-18 | 2024-02-06 | Nortek Air Solutions Canada, Inc. | Desiccant enhanced evaporative cooling systems and methods |
| CN111819415B (en) * | 2018-03-15 | 2022-09-27 | 三菱电机株式会社 | Plate heat exchanger, heat pump device provided with same, and heat pump type cooling/heating/water heating system provided with heat pump device |
| EP3792581B1 (en) * | 2019-09-13 | 2023-02-22 | Alfa Laval Corporate AB | Plate heat exchanger for treatment of a liquid feed |
| DE102019132955B4 (en) * | 2019-12-04 | 2022-03-31 | Hanon Systems | Heat exchanger with integrated dryer and plate for a plate heat exchanger |
-
1997
- 1997-01-13 CN CN 97102217 patent/CN1110682C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1163389A (en) | 1997-10-29 |
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