JP2006289191A - Total heat exchange membrane and total heat exchanger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a total heat exchange membrane not impeding a performance as the total heat exchange membrane even if drying and humidification are repeated at any number of times and withstanding to repeated usage, and a total heat exchanger using it. <P>SOLUTION: The total heat exchange membrane 20 is formed by providing a flat cavity part 27 over the approximately whole area at the inside excepting a plate-like frame 21 of thin thickness and providing fine holes 26c, 26d communicating with the cavity part on the approximately whole surface of front and back surfaces excepting the plate-like frame 21 in a mesh shape. Further, fluid passages for circulating the separate fluid are provided on both surfaces of the total heat exchange membrane 20 to form the total heat exchanger. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a total heat exchange membrane and a total heat exchanger using the same.

  Among heat exchangers, those that perform not only temperature exchange, that is, sensible heat exchange, but also humidity exchange, that is, latent heat exchange, are called total heat exchangers. The total heat exchanger is used, for example, when it is necessary to simultaneously exchange temperature and humidity with clean outside air taken into the room when discarding dirty air in the room. Here, as a heat exchange membrane of the total heat exchanger, a paper processed as shown in Patent Document 1 is often used because of its excellent moisture absorption / release properties.

However, when paper processed as a heat exchange membrane is used, it will repeat drying shrinkage when not in use and humidification expansion at the time of use due to the characteristics of the paper, so it does not demonstrate stable performance, There was also a problem of poor durability.
Japanese Patent Laid-Open No. 11-189999

  Therefore, the problem to be solved by the present invention is that a total heat exchange membrane that can withstand repeated use and the total heat using the same without affecting the performance as a total heat exchange membrane, no matter how many times dry humidification is repeated. To provide an exchange.

  In order to solve the above-described problems, the present invention provides a flat hollow portion over almost the entire area excluding the frame provided on the outer periphery of the thin plate-like body, and the front and back surfaces excluding the plate-like frame. A total heat exchange membrane in which minute holes communicating with the cavity are formed in a mesh shape on almost the entire surface.

  Preferably, the cavity of the total heat exchange membrane is partitioned into a plurality of small chambers by reinforcing ribs that connect the opposing frames.

  The total heat exchange membrane is preferably made of metal or synthetic resin.

  The present invention also provides a fluid passage through which one fluid flows along one surface of the total heat exchange membrane, and a fluid passage through which another fluid flows along the other surface of the total heat exchange membrane. An exchange was formed.

  Preferably, the fluid passage through which the one fluid flows is formed in the first plate element, and the fluid passage through which the other fluid flows is formed in the second plate element.

  In the total heat exchanger, two pairs of pockets, a first pocket and a second pocket, and a third pocket and a fourth pocket, corresponding to each other on both sides of the total heat exchange membrane, are provided, while the fluid passage has a total heat It is formed from an airtight first pocket provided on one side of the exchange membrane to a gastight fourth pocket provided on the other side through one flow hole provided in the total heat exchange membrane, while the fluid passage is entirely By forming from the airtight third pocket provided on one side of the heat exchange membrane to the second pocket provided on the other side of the total heat exchange membrane through other flow holes, they are isolated from each other and communicated alternately. Preferably, two fluid passages are formed.

  The first pocket and the third pocket are formed on the first plate element laminated on one side of the total heat exchange membrane, and the second pocket and the fourth pocket are laminated on the other side of the total heat exchange membrane. Preferably, the second plate-like element is formed.

  A total heat exchanger is formed by stacking a plurality of assemblies in which the first plate element is laminated on one surface of the total heat exchange membrane and the second plate element is laminated on the other surface of the total heat exchange membrane. Is good.

  The entire heat exchange membrane is provided with a flat hollow portion over almost the whole area excluding the thin plate-like frame, and communicates with the hollow portion on almost the entire front and back surfaces excluding the plate-like frame. By forming the micropores in a mesh shape, the moisture is transferred from the micropores formed in the fluid-side mesh containing moisture through the flat cavity and through the dry fluid-side micropores. Therefore, the total heat exchange membrane itself does not change at all, unlike the case where paper is processed, so that even if it is dried, it can be used repeatedly without affecting the performance.

  By partitioning the cavity of the total heat exchange membrane into a plurality of small rooms by reinforcing ribs connecting the opposing frames, the strength of the total heat exchange membrane is increased and the durability is improved.

  By using a metal or a synthetic resin as the total heat exchange membrane, it is possible to achieve excellent thermal conductivity and durability unlike paper processed.

  A fluid passage through which one fluid flows is provided along one surface of the total heat exchange membrane, and a fluid passage through which another fluid flows is provided along the other surface of the total heat exchange membrane to form a total heat exchanger. Thus, a total heat exchanger having a convenient and simple structure that can withstand repeated use can be obtained.

  The fluid passage through which one fluid flows is formed in the first plate element, and the fluid passage through which the other fluid flows is formed in the second plate element, thereby reducing the thickness of the total heat exchanger. Therefore, the size can be reduced.

  In the total heat exchanger, two pairs of pockets, a first pocket and a second pocket, and a third pocket and a fourth pocket, corresponding to each other on both sides of the total heat exchange membrane, are provided, while the fluid passage has a total heat It is formed from an airtight first pocket provided on one side of the exchange membrane to a gastight fourth pocket provided on the other side through one flow hole provided in the total heat exchange membrane, while the fluid passage is entirely By forming from an airtight third pocket provided on one side of the heat exchange membrane to a second pocket provided on the other side of the total heat exchange membrane through another flow hole, two isolated from each other Since the fluid passages are formed and the two fluid passages are alternately communicated with the total heat exchange membrane interposed therebetween, it is possible to easily adjust the heat exchange amount, the pressure, and the flow rate. Moreover, the same performance can be exhibited regardless of the vertical direction when the total heat exchanger is placed. Further, the temperature relationship can be made uniform.

  The first pocket and the third pocket are formed on the first plate element laminated on one surface of the total heat exchange membrane, and the second pocket and the fourth pocket are laminated on the other surface of the total heat exchange membrane. By forming the second plate-like element, the thickness of the total heat exchanger can be reduced, and the size can be reduced.

  A total heat exchanger is formed by laminating a plurality of assemblies in which the first plate element is laminated on one surface of the total heat exchange membrane and the second plate element is laminated on the other surface of the total heat exchange membrane. As a result, the efficiency of heat exchange is further improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, the overall structure of the total heat exchanger according to the present invention will be described with reference to FIG. As shown in the figure, the total heat exchanger is formed by stacking a plurality of assemblies including a first plate element 10, a total heat exchange membrane 20, and a second plate element 30, and these are hermetically sealed by a pair of side plates 40 and 50. It is formed by sandwiching between the two. The material of the total heat exchanger is preferably made of stainless steel, but can be replaced with other metals such as copper, aluminum, titanium, or synthetic resin. In this embodiment, the shape of the total heat exchanger is a square in plan view. However, the shape is not limited to this, and various shapes such as a circle and an ellipse can be used.

  Further, as shown in the drawing, the first side plate 40 is a flat plate having a flat shape and a bulging portion 41 at the center of the side, and the second side plate 50 is substantially the same as the first side plate 40. In addition, a through-hole 52 is provided to allow fluid to flow into and out of the first plate-like element 10 and the like.

  The total heat exchanger is formed by bonding these members by a known method such as diffusion bonding or bonding using nickel paste. When joining, as will be described later, if the isolated through-holes are provided at fixed positions of the respective plate-like bodies, alignment can be performed more accurately by combining them.

  Next, the internal structure of the total heat exchanger will be described with reference to FIGS. 2 (a) to 2 (c). As shown in FIG. 2A, the first plate-like element 10 is formed by superposing and joining a plate-like body 10a and a plate-like body 10b having a mirror image relationship.

  As shown in the figure, the plate-like bodies 10a and 10b have partition ribs having the same thickness as the frames 11a and 11b partitioning the fluid inlet / outlet and the fluid flow passage in the substantially rectangular frames 11a and 11b in which the center of each side is recessed. It is stretched around. The partition ribs are composed of semicircular ribs 12a and 12b extending semicircularly from both ends of the frames 11a and 11b, and elliptical ribs 13a and 13b connecting the semicircular ribs 12a and 12b on both ends. The portions surrounded by the semicircular ribs 12a and 12b and the frames 11a and 11b form fluid circulation ports 14a and 14b, and the portions surrounded by the elliptical ribs 13a and 13b form fluid circulation ports 15a and 15b.

  Further, bulging ribs 16a and 16b having the same thickness as the frames 11a and 11b are provided so as to surround the center sides of the frames 11a and 11b into which the plate-like bodies 10a and 10b are recessed, and the frames 11a and 11b and the bulging ribs 16a are provided. A portion surrounded by 16b forms fluid inlet / outlet ports 17a and 17b.

  Except as described above, the large pockets surrounded by the frames 11a and 11b, the semicircular ribs 12a and 12b, and the elliptical ribs 13a and 13b form fluid flow passages 18a and 18b.

  Further, the frames 11a and 11b, the semicircular ribs 12a and 12b, and the elliptical ribs 13a and 13b of the plate-like bodies 10a and 10b are provided with grooves 19a and 19b having a mirror image relation, and the plate-like bodies 10a and 10b are provided. When superposed, the grooves 19 a and 19 b on the ribs also overlap to form the fluid circulation hole 19.

  In addition, you may provide in the state which isolate | separated the through-hole for the alignment at the time of superimposing the plate-like body 10a etc. on the four sides of the flame | frame 11a, 11b.

  As shown in FIG. 2B, the total heat exchange membrane 20 is formed by superposing and joining a plate-like body 20a and a plate-like body 20b having a mirror image relationship. The thickness of the total heat exchange membrane 20 is preferably about 0.01 mm to 0.3 mm.

  In the plate-like bodies 20a and 20b, partition ribs having the same thickness as the frames 21a and 21b are stretched in substantially rectangular frames 21a and 21b, respectively. The partition rib includes semicircular ribs 22a and 22b extending in a semicircular shape from both ends of the frames 21a and 21b, and elliptical ribs 23a and 23b that connect the semicircular ribs 22a and 22b on both ends. Portions surrounded by the semicircular ribs 22a and 22b and the frames 11a and 11b form fluid circulation ports 24a and 24b, and portions surrounded by the elliptical ribs 23a and 23b form fluid circulation ports 25a and 25b.

Other than the above, the total heat exchanging portions 26a and 26b surrounded by the frames 21a and 21b, the semicircular ribs 22a and 22b, and the elliptical ribs 23a and 23b have a thickness of the frames 21a and 21b, the semicircular ribs 22a and 22b, and the elliptical ribs 23a. , 23b, and fine holes 26c and 26d penetrating the front and back surfaces are meshed. The diameter of the micro holes 26c and 26d is preferably about 0.01 mm to 0.2 mm, and the density of the mesh is preferably about 100 to 10,000 micro holes 26c and 26d per 1 mm ² . When the plate-like body 20a and the plate-like body 20b are overlapped with each other, this space becomes thin, so that the flat hollow portion 27 is formed. In addition, reinforcing ribs 26'a and 26'b having the same thickness as the frames 21a and 21b are connected to the total heat exchanging portions 26a and 26b so as to connect the frames 21a and 21b and the partition ribs, so that they are not easily depressed. It is like that.

  Further, bulging ribs 28a and 28b having the same thickness as the frames 21a and 21b are provided so as to surround the center sides of the frames 21a and 21b into which the plate-like bodies 20a and 20b are recessed, and the frames 21a and 21b and the bulging ribs 28a, The portion surrounded by 28b forms fluid inlets / outlets 29a and 29b.

  In addition, you may provide in the state which isolated the through-hole for the alignment at the time of superimposing the plate-like body 20a etc. on the four sides of the frame frames 21a and 21b.

  As shown in FIG. 2C, the second plate-like element 30 is formed by overlapping and joining a plate-like body 30a and a plate-like body 30b that are in a mirror image relationship. As can be seen from the figure, the second plate element 30 has a shape in which the first plate element and the top and bottom are reversed. Therefore, the same member as the first plate element 10 is used.

  As shown in the drawing, the plate-like bodies 30a and 30b have partition ribs having the same thickness as the frames 31a and 31b that partition the fluid inlet / outlet and the fluid flow passage in the substantially rectangular frames 31a and 31b in which the center of each side is recessed. It is stretched around. The partition rib includes semicircular ribs 32a and 32b extending in a semicircular shape from both ends of the frames 31a and 31b, and elliptical ribs 33a and 33b that connect the semicircular ribs 32a and 32b on both ends. The portions surrounded by the semicircular ribs 32a and 32b and the frames 31a and 31b form fluid circulation ports 34a and 34b, and the portions surrounded by the elliptical ribs 33a and 33b form fluid circulation ports 35a and 35b.

  Further, bulging ribs 36a and 36b having the same thickness as the frames 31a and 31b are provided so as to surround the center sides of the frames 31a and 31b into which the plate-like bodies 30a and 30b are recessed, and the frames 31a and 31b and the bulging ribs 36a are provided. The part surrounded by 36b forms fluid inlets and outlets 37a and 37b.

  Except as described above, the large pockets surrounded by the frames 31a and 31b, the semicircular ribs 32a and 32b, and the elliptical ribs 33a and 33b form fluid flow passages 38a and 38b.

  The frames 31a and 31b, the semicircular ribs 32a and 32b, and the elliptical ribs 33a and 33b of the plate-like bodies 30a and 30b are provided with grooves 39a and 39b having a mirror image relation. When superposed, the grooves 39a and 39b on the ribs also overlap to form a fluid flow hole 39.

  In addition, you may provide in the state which isolate | separated the through-hole for the alignment at the time of superimposing the plate-like body 30a etc. on the four sides of the frames 31a and 31b.

  Next, the flow of fluid will be described with reference to FIG. In the figure, the black arrow indicates the flow of one fluid, and the white arrow indicates the flow of the other fluid.

  First, when the flow of one fluid is followed, the one fluid that flows in from the fluid circulation hole 19 provided on the side of the frame 11 of the first plate element 10 as an inlet flows into the fluid flow passage 18 that is a large pocket. Through the fluid circulation hole 19 provided in the elliptical rib 13 and flows into the fluid circulation port 15 surrounded by the elliptical rib 13.

  Next, the one fluid that has flowed into the fluid circulation port 15 passes through the fluid circulation port 25 surrounded by the elliptical ribs 23 of the total heat exchange membrane 20, and the fluid circulation surrounded by the elliptical ribs 33 of the second plate element 30. Come out to mouth 35.

  One fluid that has come out to the fluid circulation port 35 surrounded by the elliptical rib 33 of the second plate element 30 passes through the fluid circulation hole 39 provided in the elliptical rib 33 and passes through the fluid flow passage 38 that is a large pocket. It circulates and flows out of the total heat exchanger 1 from the fluid circulation hole 39 provided on the side of the frame 31 as an outlet.

  Next, when the flow of the other fluid is followed, the other fluid that has flowed in through the through hole 52 of the side plate 50 and the fluid inlet / outlet port 17 surrounded by the frame 11 and the bulging rib 16 of the first plate-like element 10 enters. The fluid passes through the fluid circulation hole 19 provided in the recessed portion on the side of the frame 11, flows through the fluid flow passage 18 which is a large pocket, passes through the fluid circulation hole 19 provided in the semicircular rib 12, and It flows into the fluid circulation port 14 surrounded by the semicircular rib 12.

  Next, the other fluid that has flowed into the fluid inlet / outlet port 19 passes through the fluid flow port 24 surrounded by the frame 21 and the semicircular rib 22 of the total heat exchange membrane 20, and then the frame 31 and the semicircular rib 36 of the second plate element 30. It comes out at the fluid circulation port 34 surrounded by the.

  The other fluid that has come out to the fluid circulation port 34 surrounded by the frame 31 and the semicircular rib 32 of the second plate-shaped element 30 passes through the fluid circulation hole 39 provided in the semicircular rib 32 and is a large pocket. It flows through the fluid flow passage 38, passes through the fluid flow hole 39 provided in the recessed portion on the side of the frame 31, passes through the through hole 52 of the side plate 50 with the fluid inlet / outlet 37 surrounded by the frame 31 and the bulging rib 36 as an outlet. And flows out of the total heat exchanger.

  Thus, in the first plate element 10, the other fluid flows through the fluid flow path 38 of the second plate element 30 corresponding to the back surface of the fluid flow path 18 through which one fluid flows, and the second plate element. 30, the other fluid flows through the fluid flow passage 18 of the first plate element 10 corresponding to the back surface of the fluid flow passage 38 through which one fluid flows, so that different fluids flow on both surfaces across the total heat exchange membrane 20. And the temperature of each fluid is exchanged.

  Furthermore, when one fluid is relatively dry compared to the other fluid, the moisture moves as shown by the arrows in FIGS. 4A and 4B, so that the moisture is exchanged between the fluids. When the other fluid is relatively dry compared to the one fluid, the reverse phenomenon described below may be considered.

  That is, when the other fluid is flowing through the first plate element 10, the moisture contained in the other fluid is transferred from the fluid flow path 18 of the first plate element 10 to the second heat exchange membrane 20. It is provided in the total heat exchanging portion 26 on the second plate-shaped element 30 side through the fine hole 26c provided in the mesh shape in the total heat exchanging portion 26 on the one plate-shaped element 10 side, and through the flat hollow portion 27. It moves from the formed micro hole 26d to the fluid flow passage 38 of the second plate element 30 through which one fluid flows.

  Similarly, when the other fluid is flowing through the second plate element 30, the moisture contained in the other fluid is transferred from the fluid flow passage 38 of the second plate element 30 to the first heat exchange membrane 20. It is provided in the total heat exchanging portion 26 on the first plate element 10 side through the minute hole 26d provided in the mesh shape in the total heat exchanging portion 26 on the second plate element 30 side, and through the flat cavity portion 27. From the formed minute hole 27c, the fluid moves to the fluid flow path 18 of the first plate element 10 through which one fluid flows.

Disassembled perspective view of total heat exchanger Exploded view of the first plate element Exploded view of total heat exchange membrane Exploded view of the second plate element Diagram showing the path through which fluid flows (A) is a figure which shows the path | route which moisture moves through a total heat exchange membrane, (b) is AA longitudinal cross-sectional view of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 1st plate-shaped element 10a, 10b Plate-shaped body 11, 11a, 11b Frame 12, 12a, 12b Semicircular rib 13, 13a, 13b Elliptical rib 14, 14a, 14b, 15, 15a, 15b Fluid circulation port 16, 16a, 16b Swelling ribs 17, 17a, 17b Fluid inlet / outlet 18, 18a, 18b Fluid flow passage 19 Fluid flow holes 19a, 19b Groove
20 Total heat exchange membranes 20a, 20b Plates 21, 21a, 21b Frames 22, 22a, 22b Semi-circular ribs 23, 23a, 23b Elliptical ribs 24, 24a, 24b, 25, 25a, 25b Fluid flow ports 26, 26a, 26b Total heat exchange part 26c, 26d Micro hole 26 ', 26'a, 26'b Reinforcement rib
27 Cavities 28, 28a, 28b Swelling ribs 29, 29a, 29b Fluid inlet / outlet 30 Second plate elements 30a, 30b Plate bodies 31, 31a, 31b Frames 32, 32a, 32b Semicircular ribs 33, 33a, 33b Elliptical ribs 34, 34a, 34b, 35, 35a, 35b Fluid flow ports 36, 36a, 36b Swelling ribs 37, 37a, 37b Fluid inlet / outlet ports 38, 38a, 38b Fluid flow passages 39 Fluid flow holes 39a, 39b Groove 40 First Side plate 41 bulging portion 50 second side plate 51 bulging portion 52 through-hole

Claims (8)

  A flat hollow portion is provided over almost the entire inner area excluding the frame provided on the outer periphery of the thin plate-like body, and a minute portion communicated with the hollow portion on almost the entire front and back surfaces excluding the frame of the plate-like body. Total heat exchange membrane with holes in mesh.   The total heat exchange membrane according to claim 1, wherein the hollow portion is partitioned into a plurality of small chambers by reinforcing ribs that connect the opposing frames.   The total heat exchange membrane according to claim 1 or 2, comprising a metal or a synthetic resin.   A fluid passage in which one fluid flows along one surface of the total heat exchange membrane according to claim 1, and another fluid flows along the other surface of the total heat exchange membrane. A total heat exchanger.   5. The total heat exchanger according to claim 4, wherein the fluid passage through which the one fluid flows is formed in the first plate element, and the fluid passage through which the other fluid flows is formed in the second plate element. .   Two pairs of pockets, the first pocket and the second pocket and the third pocket and the fourth pocket, corresponding to each other on both sides of the total heat exchange membrane, are provided, while the fluid passage is provided on one side of the total heat exchange membrane It is formed from the airtight first pocket formed through one flow hole provided in the total heat exchange membrane to the airtight fourth pocket provided in the other surface, while the fluid passage is formed on one surface of the total heat exchange membrane. By forming from the airtight third pocket provided through the other circulation hole to the airtight second pocket provided on the other surface of the total heat exchange membrane, the two isolated from each other and alternately communicated with each other are formed. Total heat exchanger with fluid passage.   The first pocket and the third pocket are formed in a first plate element laminated on one surface of the total heat exchange membrane, and the second pocket and the fourth pocket are the other surface of the total heat exchange membrane. The total heat exchanger of Claim 6 formed in the 2nd plate-shaped element laminated | stacked on.   The first plate-like element according to claim 5 or 7 is laminated on one surface of the total heat exchange membrane according to any one of claims 1 to 3, and the other surface of the total heat exchange membrane according to claim 5 or A total heat exchanger formed by laminating a plurality of assemblies in which the second plate elements according to claim 7 are laminated.

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