JP2005074277A - Heat exchanger of garbage treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat exchanger of a garbage treatment apparatus that is capable of reducing the pressure loss at the back and forth of the folded part and that is capable of further enhancing the efficiency of the heat exchange. <P>SOLUTION: The heat exchanger 9 which heats the garbage by performing the heat exchange of the garbage within the garbage treatment tank 2 is provided with a hollow heat exchanger body 10 fitted to the garbage treatment tank 2 in a state of being face-contacted with the outer peripheral surface of the garbage treatment tank 2. The inside of the heat exchanger body 10 is divided by a diaphragm 10e to form a passage 10f. Further, a turning-back part 10g to approximately reverse the flowing direction is formed at the proximity of the end of the diaphragm 10e, and a flow-straightening mechanism 16 to straighten the flow is arranged at the turning-back part 10g. The flow-straightening mechanism 16 is arranged at the turning-back part 16 so that each of both the ends is located at the two spaces divided by the extended line 10i of the diaphragm 10e to form the line symmetrical shape to the extended line 10i of the diaphragm 10e. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a heat exchanger of a garbage processing apparatus that decomposes garbage using the power of microorganisms.

  2. Description of the Related Art In recent years, there has been provided a garbage processing apparatus that uses microorganisms to decompose (ferment) garbage having organic matter and moisture so as not to affect the environment (see, for example, Patent Document 1).

  In this kind of garbage processing equipment, the garbage processing tank is filled with a carrier such as a wood chip called biochip as a garbage processing material, and the garbage input to the garbage processing layer is collected. In addition, it is fermented and decomposed by the action of microorganisms that inhabit the garbage treatment material. Since the exhaust from the garbage treatment tank contains gas components that are generated when the garbage is decomposed, a deodorizing device is provided that deodorizes the exhaust by heating it to a high temperature with a heater and then contacting it with the catalyst. Yes. Further, as shown in FIG. 10, a heat exchanger 20 is installed in the lower part of the garbage treatment tank 2, and a high temperature after deodorization is provided in a duct hose 21 arranged to meander inside the heat exchanger 20. Heat is exchanged with the garbage processing material put into the garbage processing tank 2 through the exhaust air, and the garbage processing material is heated so as to be suitable for the activities of microorganisms living in the garbage processing material. It was.

JP 2000-70905 A (paragraph numbers [0046]-[0050] and FIG. 3)

  In the heat exchanger 20 of the garbage disposal apparatus described above, the duct hose 21 is routed inside the heat exchanger 20, so that there is a problem that the workability of the assembly work is poor. Further, since the duct hose 21 is used for passing the exhaust gas, there is a problem that the contact area between the duct hose 21 and the garbage disposal tank 2 cannot be increased, and the efficiency of heat exchange is poor.

  Therefore, in order to solve the above-mentioned problem, the present applicant has already filed an application for a heat exchanger of a garbage disposal apparatus that is easy to assemble and has improved heat exchange efficiency. As shown in FIG. 11, the heat exchanger of this garbage disposal apparatus is formed so that the shape of the contact surface with the outer surface of the garbage treatment tank is along the outer surface of the garbage treatment tank. A hollow heat exchanger body 10 is provided that is attached to the garbage treatment tank in a state where the outer surface and the contact surface of the treatment tank are in surface contact with each other, and the interior of the heat exchanger body 10 is partitioned by a partition plate 10e so that the air A flow path 10f is formed, and an intake port 10c through which air heated by a heater flows is provided at one end of the flow path 10f, and an exhaust port 10d through which air is discharged is provided at the other end. .

  However, as shown in FIG. 12, the air flow direction is reversed in the substantially reverse direction before and after the folded portion 10g of the heat exchanger body 10, and the air flow direction changes abruptly. Flow separation occurs near the end of the plate 10e, forming a separation region (A portion in FIG. 12), and large pressure loss occurs before and after the folded portion 10g. When the width of the garbage treatment tank is increased, the width of the heat exchanger body 10 is also increased, and the number of times the flow path 10f is folded back increases, so that the overall pressure loss increases and the blower suction capability may be insufficient. is there.

  The present invention has been made in view of the above problems, and the object of the present invention is to reduce the pressure loss before and after the folded portion and to reduce the heat exchange efficiency. The object is to provide a heat exchanger for the apparatus.

  In order to solve the above-mentioned problems, the present invention is used in a garbage treatment device for reducing the amount of garbage thrown into the garbage treatment tank, and performs heat exchange with the garbage inside the garbage treatment tank. A heat exchanger that heats the garbage in the outer surface of the garbage treatment tank, wherein the shape of the contact surface with the outer surface of the garbage treatment tank is formed along the outer surface of the garbage treatment tank. And a hollow heat exchanger main body attached to the garbage treatment tank in a state where the contact surface is in surface contact, and forming a flow path by partitioning the inside of the heat exchanger main body with a partition plate, An inlet is provided at one end, and an outlet is provided at the other end of the flow path, and the partition plate projects from the inner wall of the heat exchanger body toward the inner wall on the opposite side, near the tip of the partition plate. Is formed with a folded portion where the flow direction is reversed in a substantially opposite direction, A rectifying mechanism for rectifying the flow is disposed in the return portion, and the rectifying mechanism is arranged symmetrically with respect to the extension line so that both ends are located in two spaces separated by the extension line of the partition plate, respectively. It is a simple shape.

  In the heat exchanger of the garbage processing apparatus according to the present invention, flow rectification is rectified by a rectifying mechanism, so that flow separation is less likely to occur at the folded portion, turbulent flow is suppressed, and pressure loss before and after the folded portion. The heat exchange efficiency can be further improved.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS.

  The housing 1 of the garbage disposal apparatus includes a box-shaped metal garbage disposal tank 2 having an open top surface, and inside the garbage disposal tank 2, sawdust-like woody fine wood inhabited by microorganisms. A garbage disposal material (so-called biochip) made of a carrier such as a piece is filled. A garbage input port (not shown) is opened on the upper surface of the housing 1, and an openable / closable lid is provided on the garbage input port. The lid is opened to enter the garbage processing tank 2 from the garbage input port. Garbage can be thrown in.

  An overflow tank 5 is provided in the housing 1 adjacent to the garbage treatment tank 2. The garbage processing tank 2 and the overflow tank 5 have a stirring shaft 3 having stirring blades 3 a installed therein, and the stirring shaft 3 is rotated by a motor 4 to fill the garbage processing tank 2 with the garbage processing material. , The garbage thrown into the garbage treatment tank 2 is decomposed. In addition, an opening 6a is provided in the upper part of the partition plate 6 that separates the garbage treatment tank 2 and the overflow tank 5, and the inside of the garbage treatment tank 2 when the stirring blade 3a is rotated in the reverse direction to the normal time. The garbage processing material filled in the tank overflows toward the overflow tank 5 through the opening 6a. Here, the cross-sectional shapes of the bottoms of the garbage treatment tank 2 and the overflow tank 5 are semicircular shapes slightly larger in diameter than the stirring blades 3a, and are collected at the bottoms of the garbage treatment tank 2 and the overflow tank 5. The garbage treatment material can be stirred to every corner by the stirring blade 3a. In FIGS. 3 and 4, the side walls of the garbage treatment tank 2 and the overflow tank 5 are omitted, but they are closed by side walls (not shown).

  By the way, since microorganisms generate gas and moisture during the process of decomposing garbage, an exhaust port (not shown) for exhausting moist air containing odor inside the garbage treatment tank 2 to the outside is produced. It is provided in the upper part of the waste treatment tank 2, and a filter 7 is provided in this exhaust port. An oxidation catalyst type deodorizer 8 and a heat exchanger 9 are provided in the exhaust path of the air exhausted from the exhaust port through the filter 7, and a blower 11 is provided downstream of the heat exchanger 9. ing.

  The deodorizer 8 includes a heater and an oxidation catalyst such as a platinum catalyst. The deodorizer 8 is heated to a high temperature of about 200 to 400 ° C. by the heater, and the exhaust heated to the high temperature is brought into contact with the oxidation catalyst. Thus, oxidative decomposition of the odor component is promoted and deodorized.

  As shown in FIGS. 1 (a) and 1 (b), the heat exchanger body 10 of the heat exchanger 9 has main plates 10a and 10a having a J-shaped cross section arranged to face each other at a predetermined interval, and the peripheral portion thereof is a side plate. By covering with 10b, a hollow box shape is formed. An intake port 10c and an exhaust port 10d are provided on the left and right sides of the upper portion of the heat exchanger 9, and the interior of the heat exchanger 9 is partitioned by a partition plate 10e erected from the main plate 10a and exhausted from the intake port 10c. A flow path 10f that snakes to the mouth 10d is formed. Further, a guide plate 16 (guide member) that rectifies the air flow is disposed in the folded portion 10g of the flow path 10f. Here, since the shape of the contact surface of the heat exchanger body 10 with the garbage treatment tank 2 (that is, the inner main plate 10a) is formed in a shape along the shape of the bottom of the garbage treatment tank 2, The contact surface (main plate 10a) of the heat exchanger body 10 and the back surface of the garbage disposal tank 2 can be brought into surface contact, and the efficiency of heat exchange can be increased.

  As described above, the filter 7, the deodorizer 8 and the heat exchanger 9 are provided in the middle of the exhaust path from the garbage processing tank 2, and the blower 11 is operated to suck the air inside the garbage processing tank 2. Then, the air inside the garbage treatment tank 2 is sent to the filter 7 through the exhaust port, and after dust is removed by the filter 7, it is sent to the deodorizer 8. The deodorizer 8 is heated by a heater and brought into contact with an oxidation catalyst to promote oxidative decomposition of odor components and deodorize, and the high-temperature exhaust gas after deodorization is the intake port of the heat exchanger 9 10c. The high-temperature exhaust gas flowing into the heat exchanger main body 10 from the intake port 10c passes through the flow path 10f provided in the heat exchanger main body 10, and is connected to the garbage treatment material introduced into the garbage treatment tank 2. The waste treatment material is heated to a temperature suitable for the activity of microorganisms by performing heat exchange between them, and then sent to the blower 11 through the exhaust port 10d and exhausted to the outside through the silencer 15 from the blower 11. . 3 and 4, the ducts connecting the filter 7 and the deodorizer 8, the deodorizer 8 and the heat exchanger 9, and the heat exchanger 9 and the blower 11 are omitted. It is shown.

  In addition, an intake port 12a is opened in the upper part of the garbage treatment tank 2, and an intake duct 12 is provided in communication with the intake port 12a. Thus, when exhaust is performed by operating the blower 11, outside air is sent from the outside air intake (not shown) provided in the lower portion of the housing 1 into the garbage treatment tank 2 through the intake duct 12 and the intake port 12 a. The activity can be activated by supplying fresh oxygen to the microorganisms that inhabit the garbage treatment material.

  Further, as shown in FIG. 1 (a), the intake duct 12 communicating with the intake port 12a is provided adjacent to the heat exchanger 9, and air flowing into the garbage treatment tank 2 from the outside is heat exchanger. Since the air inflow path is formed so as to come into contact with the surface of the main body 10, the upper side plate 10 b of the heat exchanger 9 serves as a heat exchange surface and passes through the intake duct 12 to the garbage treatment tank 2. Heat exchange is performed between the inflowing air and the hot air flowing through the flow path 10f in the heat exchanger 9 to warm the air sucked from the outside. It can prevent that the temperature of the garbage processing material with which the tank 2 was filled falls, and can improve the heat retention of a garbage processing material.

  Further, since the stirring shaft 3 normally rotates in one direction (counterclockwise in FIG. 1B), the garbage processing material 14 filled in the garbage processing tank 2 by the rotation of the stirring blade 3a. The upper surface of (the hatched portion in the figure) is inclined upward in the figure. Therefore, as shown in FIG. 1 (b), the portion where the garbage treatment material 14 is present on the back surface of the garbage treatment tank 2 in a state where the garbage treatment material 14 is shifted to one side by the rotation of the stirring blade 3a. You may form the heat exchanger main body 10 in the shape which can cover the whole. In this way, when the garbage is decomposed, the portion where the garbage treatment material to be heated actually exists is heated, so that the hot air flowing through the flow path 10f in the heat exchanger 9 and the garbage treatment tank 2 are The efficiency of heat exchange with the filled garbage disposal material can be further increased.

  In this embodiment, the intake duct 12 is provided adjacent to the heat exchanger 9, but a duct 13 connecting the filter 7 and the deodorizer 8 is adjacent to the heat exchanger 9 as shown in FIG. An inflow path of air flowing into the heater may be formed so that the air flowing into the heater comes into contact with the surface of the heat exchanger main body 10, and the upper side plate 10b of the heat exchanger 9 is formed as a heat exchange surface. As a part of the exhaust heat from the heat exchanger 9 by performing heat exchange between the air flowing into the deodorizer 8 through the duct 13 and the hot air flowing through the flow path 10f in the heat exchanger 9 The exhaust before entering the heater inside the deodorizer 8 can be warmed in advance, and as a result, the running cost of the heater can be reduced.

  Hereinafter, the heat exchanger 9 of this embodiment is demonstrated in detail based on FIG.6 and FIG.7. 6 and 7 show an analysis model of the heat exchanger body 10 created in order to analyze the pressure loss before and after the folded portion 10g, and arrows in the drawings show the flow of air. The inside of the heat exchanger body 10 is partitioned by three partition plates 10e, and the air flow is turned back three times. However, in these analysis models, the inside of the heat exchanger body 10 is 1 to facilitate the analysis. The flow of the air is folded only once by dividing it with a single partition plate 10e. In the figure, 22 is an intake port through which air flows in, and 23 is an exhaust port through which air is discharged.

  A plurality of partition plates 10e protrude alternately from the inner walls at both ends of the heat exchanger body 10 toward the inner walls on the opposite side, and the interior of the heat exchanger body 10 is partitioned by these partition plates 10e. A flow path 10f that meanders inside the main body 10 is formed. That is, in the heat exchanger body 10 shown in FIG. 1, the three partition plates 10e protrude alternately from one of the inner walls (side plates 10b) located at both ends in the vertical direction to the other, The two partition plates 10e on both sides protrude along the vertical direction from the side plate 10b at the upper end on the back side of the heat exchanger body 10 to the side of the side plate 10b at the upper end on the near side, and the center partition plate 10e is heat exchanged. It protrudes along the up-down direction from the side plate 10b at the upper end on the near side of the main body 10 to the side at the side plate 10b at the upper end on the far side. Thus, by partitioning the inside of the heat exchanger body 10 with the three partition plates 10e, an air flow path 10f that meanders the inside of the heat exchanger body 10 is formed, as shown in FIG. Around the front end of the partition plate 10e, there is formed a folded portion 10g where the air flow is reversed in a substantially reverse direction.

  In the present embodiment, as shown in FIG. 6, a guide plate 16 (guide member) that rectifies the air flow is disposed in the folded portion 10g of the flow path 10f. The guide plate 16 is formed in a substantially U shape by a center piece 16a and both side pieces 16b and 16c protruding in one direction from both ends of the center piece 16a, and the ends of the side pieces 16b and 16c are partitioned by a partition plate 10e. It arrange | positions at the return part 10g so that it may protrude in two spaces. The guide plate 16 is disposed such that the intermediate portion 16e of the guide plate 16 is positioned on the extension line 10i from the tip end portion of the partition plate 10e, and is line symmetric with respect to the extension line 10i from the tip end portion of the partition plate 10e. The cross-sectional area of the flow path inside the guide plate 16 can be made uniform, and the pressure loss before and after the folded portion can be reduced.

  Further, the guide plate 16 is 1/2 of the width of the flow path 10f in which the half length of the mutual distance between the both end portions 16d and 16d of the guide plate 16 (half length of the linear distance between both end portions) is partitioned by the partition plate 10e. The air sent from the air inlet 22 between the partition plate 10e and the side piece 16b or between the side piece 16b and the side plate 10b hits the center piece 16a or the side plate 10b in the forward direction of travel. After the traveling direction has changed by approximately 90 degrees, the traveling direction changes by another 90 degrees by hitting the side piece 16c or the side plate 10b in front of the traveling direction. In this way, by arranging the guide plate 16 in the folded portion 10g, the air flow direction can be bent in two portions of approximately 90 degrees, and the bending angle in the air flow direction is approximately 180 degrees to approximately 90 degrees. Since it becomes smaller each time, separation of the flow hardly occurs, the generation of turbulent flow is suppressed, and the pressure loss before and after the folded portion 10g is reduced. Here, as a result of analyzing the air flow for the analysis model shown in FIG. 6, when the pressure loss in the folded portion 10g of the heat exchanger main body 10 as shown in FIG. 12 is 100, the folded portion 10g as shown in FIG. When the substantially U-shaped guide plate 16 in which the half length of the mutual distance between both ends is ½ of the width of the flow path 10f is arranged, the pressure loss becomes 65, and the pressure loss is about 35% by arranging the guide plate 16. Reduced. Note that the pressure loss is 52 when a substantially U-shaped guide plate in which the half length of the mutual distance between both ends is ½ of the width of the flow path 10f is arranged.

  Thus, the pressure loss before and after the folded portion 10g can be reduced by arranging the guide plate 16 in the folded portion 10g, but the bending angle in the direction of air flow is 180 degrees near the tip of the partition plate 10e. Therefore, flow separation occurs in this vicinity, and pressure loss occurs. Therefore, as shown in FIG. 7, a substantially U-shaped guide plate 16 ′ smaller than the guide plate 16 may be arranged inside the substantially U-shaped guide plate 16. In other words, the guide plate 16 ′ in which the half length of the mutual distance between the both end portions 16d and 16d of the guide plate is ¼ of the width of the flow path 10f is arranged on the inner side of the guide plate 16 (in the direction of the partition plate front end). Both the plate 16 and the guide plate 16 ′ are arranged so as to have a line-symmetric shape with respect to the extended line 10 i from the front end portion 10 h of the partition plate 10 e. By providing the guide plate 16 ', the region where the bending angle is 180 degrees is reduced, and the pressure loss is further reduced. Here, as a result of analyzing the air flow for the analysis model of FIG. 7, when the pressure loss in the folded portion 10g of the heat exchanger main body 10 as shown in FIG. 12 is 100, the folded portion 10g as shown in FIG. The pressure loss when the two guide plates 16 and 16 'are arranged is 46, and the pressure loss is further reduced as compared with the case where only one guide plate 16 is arranged. In this embodiment, one or two guide plates 16 and 16 'constitute the rectifying mechanism. However, the rectifying mechanism may be formed by arranging three or more U-shaped guide plates. Needless to say.

(Embodiment 2)
Next, Embodiment 2 of the present invention will be described. In the present embodiment, as shown in FIG. 8, a guide plate 17 (guide member) that rectifies the air flow is disposed in the folded portion 10 g of the flow path 10 f. The guide plate 17 is formed in a substantially semicircular shape, and both end portions 17a and 17a protrude into two spaces partitioned by the partition plate 10e, respectively, and an intermediate portion 17b of the guide plate 17 is a tip portion 10h of the partition plate 10e. It is located on the extension line 10i. That is, the guide plate 17 has a shape symmetrical with respect to the extended line 10i from the tip 10h of the partition plate 10e, and the cross-sectional area of the channel inside the guide plate 17 can be made uniform. The pressure loss before and after the part can be reduced. Further, in the present embodiment, when the air flowing in from the air inlet 22 flows into the space between the guide plate 17 and the partition plate 10e, the air that has flowed in hits the surface of the guide plate 17, and the surface of the guide plate 17 is curved. Accordingly, the air flow direction is gradually changed, and the flow separation is further suppressed and the generation of turbulent flow is suppressed. Therefore, the pressure loss before and after the folded portion 10g is further reduced.

  Furthermore, in the present embodiment, the flow path 10f in which the half length of the mutual distance between the both end portions 17a and 17a of the guide plate 17 (corresponding to a radius when the guide plate 17 is regarded as a semicircle) is partitioned by the partition plate 10e. 1/4 of the width. Here, as a result of analyzing the air flow for the analysis model of FIG. 8, when the pressure loss in the folded portion 10g of the heat exchanger main body 10 as shown in FIG. 12 is 100, the folded portion 10g as shown in FIG. When the substantially semicircular guide plate 17 is arranged, the pressure loss is 24, and the pressure loss of the folded portion 10g can be reduced. It should be noted that the pressure loss is 43 when the half length of the mutual interval between the both ends of the guide plate 17 is ½ of the width of the flow path 10f.

  Here, this operation will be described. Even when the substantially semicircular guide plate 17 is disposed in the folded portion 10g, a separation region is formed at the position shown in FIG. 8A, that is, in the range along the partition plate 10e in the channel after the folding. Here, a flow is formed in the peeling area A by disposing the end portion of the substantially semicircular guide plate 17 in a portion closer to the peeling area A. As a result, the peeling area is reduced and pressure loss is reduced. It is. Therefore, 1/4 of the width of the flow path 10f can reduce the pressure loss of the folded portion 10g compared to 1/2 of the width of the flow path 10f. This action is not limited to the substantially semicircular guide plate 17, and the same applies to guide plates of other shapes.

  In this embodiment, the rectifying mechanism is constituted by one guide plate 17, but a plurality of substantially semicircular guide plates may be arranged. For example, a guide plate in which half the distance between both ends of the guide plate is ½ of the width of the flow path is disposed outside the guide plate 17 and is disposed on the circumference concentric with the guide plate 17. As a result, the pressure loss becomes 21, and the pressure loss can be further reduced as compared with the case where one guide plate 17 in which the half length of the mutual interval between both ends is 1/4 of the width of the flow path 10f is arranged.

(Embodiment 3)
Subsequently, Embodiment 3 of the present invention will be described. In the present embodiment, as shown in FIG. 9, a guide plate 18 (guide member) that rectifies the flow of air is arranged in the folded portion 10g of the flow path 10f. The guide plate 18 is formed in a shape obtained by cutting a regular octagon in half, and both end portions 18a and 18a of the guide plate 18 project into the two spaces partitioned by the partition plate 10e in the direction perpendicular to the channel width. At the same time, the intermediate portion 18b of the guide plate 18 is located on the extension line 10i from the tip portion 10h of the partition plate 10e. That is, the guide plate 18 has a shape symmetrical with respect to the extended line 10i from the tip portion 10h of the partition plate 10e, and the cross-sectional area of the flow path inside the guide plate 18 can be made uniform. The pressure loss before and after the part can be reduced. In the present embodiment, when the air that has flowed in from the air inlet 22 flows into the space between the guide plate 18 and the partition plate 10 e, the air that has flowed in hits the surface of the guide plate 18 and along the surface of the guide plate 18. Since the air flow direction is gradually changed, the flow separation is further suppressed and the generation of turbulent flow is suppressed, so that the pressure loss before and after the folded portion 10g is further reduced.

  Furthermore, in the present embodiment, the half length of the mutual interval between the both end portions 18a, 18a of the guide plate 18 is formed to be 1/4 of the width of the flow path 10f partitioned by the partition plate 10e. Here, the half length of the mutual interval between the both end portions 18a, 18a means a half length in a distance obtained by connecting both end portions with a straight line. Here, as a result of analyzing the air flow for the analysis model of FIG. 9, when the pressure loss in the folded portion 10g of the heat exchanger main body 10 as shown in FIG. 12 is 100, the folded portion 10g as shown in FIG. When the semi-regular octagonal guide plate 18 is disposed, the pressure loss is 27, and the pressure loss of the folded portion 10g can be reduced.

  Here, this operation will be described. Even in the case where the semi-regular octagonal guide plate 18 is disposed in the folded portion 10g, a separation region is formed at a position shown in FIG. 9A, that is, in a range along the partition plate 10e in the channel after the folding. Here, by arranging the end portion of the guide plate 18 at a portion closer to the peeling area A, a flow is formed in the peeling area A, and as a result, the peeling area is reduced and pressure loss is reduced.

  In the present embodiment, the guide plate 18 has a half regular octagonal shape, but the present invention is not limited to this, and the guide plate 18 may be formed by cutting a regular dodecagon into half. Here, when other conditions are the same as those of the semi-regular octagonal shape described above, the pressure loss is 26, and the pressure loss tends to be reduced as the guide plate approaches a substantially semicircular shape.

  In addition, the garbage processing apparatus of Embodiment 1-3 of this invention is equipped with the control apparatus which controls each part, and in the case of a high temperature type, the inside of the garbage processing tank 2 is processed for the water | moisture content contained in garbage. The temperature of the air flowing through the flow path 10f in the heat exchanger 9 is changed by controlling the heater and the like of the deodorizer 8 so as to heat to a suitable temperature. The heat exchanger 9 can also be applied to a bio-type garbage treatment apparatus. In that case, the controller deheats the inside of the garbage treatment tank 2 to a temperature suitable for the activity of microorganisms. What is necessary is just to change the temperature of the air which flows into the flow path 10f in the heat exchanger 9 by controlling the heater etc. of the apparatus 8.

  In addition, the fluid flowing in the flow path 10f in the heat exchanger 9 is not limited to air, but for example, hot water using a cogeneration system may be circulated to heat the temperature inside the garbage treatment tank 2. .

The state which attached the heat exchanger of Embodiment 1 to the garbage processing tank is shown, (a) is a perspective view, (b) is a side view. It is an external appearance perspective view which fractures | ruptures partially the garbage processing apparatus using the same. It is the perspective view which looked at the inside of the garbage processing apparatus using the same from the front. It is the perspective view which looked at the inside of the garbage processing apparatus using the same from the back. It is a perspective view of the state which attached another heat exchanger same as the above to a garbage processing tank. It is a figure explaining the analysis model of a heat exchanger same as the above. It is a figure explaining the analysis model of another heat exchanger same as the above. It is a figure explaining the analysis model of the heat exchanger of Embodiment 2. FIG. It is a figure explaining the analysis model of the heat exchanger of Embodiment 3. It is a perspective view of the state which attached the conventional heat exchanger to the garbage processing tank. It is explanatory drawing of a heat exchanger. It is explanatory drawing of the folding | turning part of a heat exchanger.

Explanation of symbols

2 Garbage treatment tank 9 Heat exchanger 10 Heat exchanger body 10c Intake port 10d Exhaust port 10e Partition plate 10f Flow path 16 Guide plate

Claims (5)

  A heat exchanger that heats food waste by exchanging heat with the food waste inside the food waste treatment tank. The shape of the contact surface with the outer surface of the garbage treatment tank is formed so as to be along the outer surface of the garbage treatment tank, and the raw surface is brought into surface contact with the outer surface of the garbage treatment tank. A hollow heat exchanger main body attached to the waste treatment tank, and a flow path is formed by partitioning the inside of the heat exchanger main body with a partition plate; an inlet is provided at one end of the flow path; An outlet is provided at the other end of the path, and the partition plate projects from the inner wall of the heat exchanger body toward the inner wall on the opposite side, and a folded portion where the flow direction is reversed in a substantially reverse direction near the tip of the partition plate A rectifying mechanism that rectifies the flow is arranged at the folded portion. The rectifying mechanism has both ends positioned in two spaces separated by an extension line of the partition plate, and has a shape symmetrical with respect to the extension line. Equipment heat exchanger.   2. The heat exchanger of a garbage disposal apparatus according to claim 1, wherein the rectifying mechanism has a half length between both end portions of ¼ or more and ½ or less of the width of the flow path.   The rectifying mechanism includes a first rectifying mechanism in which a half length of the gap between both ends is ½ of the width of the flow path, and a second rectification mechanism in which a half length of the gap between both ends is ¼ of the width of the flow path. 3. The heat exchanger for a garbage disposal apparatus according to claim 1, wherein the second rectification mechanism is disposed closer to the partition plate than the first rectification mechanism. .   The said rectification | straightening mechanism is a substantially semicircle, Comprising: It consists of a guide member arrange | positioned at the said folding | turning part so that both ends may go to the two spaces partitioned by the said partition plate. The heat exchanger of the garbage processing apparatus as described in any one of these.   The said rectification | straightening mechanism is a semi-polygonal shape, Comprising: It consists of a guide member arrange | positioned at the said folding | turning part so that both ends may go to two spaces partitioned off with the said partition plate. The heat exchanger of the garbage processing apparatus as described in any one of these.

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