JP2014134315A - Filler for heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filler used for gas-liquid heat exchange and capable of suppressing a liquid droplet of a liquid-phase heat exchange medium from scattering to outside without need of an eliminator as a separate component by allowing a part of a filter to function as the eliminator.SOLUTION: An eliminator portion 12 is formed on an end side portion that is a gas-phase heat exchange medium outlet of a filler 10, and a non-abutment portion 13 is provided between a heat exchange portion 11 of the filler 10 and the eliminator portion 12 thereof. In a state of integrally superimposing a plurality of fillers 10, an air flow passage 14 is generated among the eliminator portions 12 of this filler group, and a cavity is generated among the non-abutment portions 13 of the fillers. It is, therefore, possible to collect liquid droplets transported while being carried on a gas-phase heat exchange medium passing through the air flow passage 14 by contacting the liquid droplets with surfaces of the eliminator portions 12, to ensure flowing down liquid derived from the liquid droplets and generated on the surfaces of the eliminator portions 12 via the cavity to outside, and to suppress the liquid from scattering as new liquid droplets on the air flow passage 14.

Description

  The present invention relates to a heat exchange device filler used as a heat exchange part in a heat exchange device such as a cooling tower.

  Generally, for cooling towers installed outdoors for the purpose of cooling water used for circulation in factories and air conditioning equipment, air and water are brought into direct contact at the heat exchange part inside the cooling tower, resulting in a temperature difference between the water and air. The open-type cooling tower that combines the heat transfer utilizing sensible heat, that is, the cooling action by sensible heat, and the cooling action by evaporation of the water itself, that is, latent heat (evaporation heat), and the air and circulating water in the heat exchanger inside the cooling tower There are closed cooling towers that exchange heat indirectly without direct contact.

  In these cooling towers, circulating water in the case of open type cooling towers, and in the case of closed type cooling towers, sprayed water that is sprayed on the outer surface of the heat exchanger and adds a cooling effect due to latent heat is in direct contact with the atmosphere. A large number of fillers are arranged to exchange heat while partially evaporating, and circulating water and sprayed water flow down in a film form along the surface of each filler, making it easier to make contact with the outside air. A mechanism to increase exchange efficiency was used.

  In such a cooling tower, a large amount of circulating water and spray water flow intersecting the air flow, so the air after passing through the heat exchange part contains not only a lot of water vapor but also the circulating water flowing along the packing material. And water droplets of sprayed water may be included, and the phenomenon of these passing through the fan together with air and scattering outside the cooling tower has occurred. Such splashing of water droplets is not so desirable, as it has been pointed out in recent years that there is a possibility of spreading germs in the water to the surrounding environment, and countermeasures are strongly demanded as a major problem when using cooling towers. It was.

  In order to prevent such water droplets from splashing outside the cooling tower, an eliminator has been provided on the air outlet side of the filler group where water flows down the surface to suppress the arrival of water droplets further downstream. Various cooling towers are used. As an example of a cooling tower using such an eliminator, there are those disclosed in Japanese Patent Application Laid-Open Nos. 2001-208486 and 2007-24464.

JP 2001-208486 A JP 2007-24464 A

  The conventional cooling tower is configured as shown in each of the above patent documents, and although the scattering of water droplets to the outside of the cooling tower can be suppressed by the eliminator, the eliminator which is a part different from the filler is newly provided. The cost of the eliminator is added to the cost of introducing the cooling tower. In addition, since the added eliminator does not directly contribute to heat exchange, it requires installation space, so the size of the filler that brings water into contact with air is the same as in the previous case where no eliminator is used. If the heat exchange performance is to be maintained, for example, the size of the cooling tower is simply increased by the installation space of the eliminator, and the cost of the entire cooling tower is increased.

  Furthermore, due to restrictions on the mounting support of the eliminator, there may be a gap between the filler group and the eliminator. If such a gap exists, water droplets will reach the fan side in a form that bypasses the eliminator. There is a problem that it becomes difficult to completely suppress the splashing of water droplets to the outside.

  In addition, the conventional eliminator may not allow the collected water to flow down properly.In such a case, the water is retained, so that the scale is likely to occur as the water stays and the scale is stagnant. In other words, the corrosion of the metal part has progressed due to the scale, and there has been a problem that maintenance work and cost for the metal part further arise.

  The present invention was made in order to solve the above-mentioned problem, so that a part of the filler used for gas-liquid heat exchange fulfills the function of an eliminator, and without requiring an eliminator as a separate part, It is an object of the present invention to provide a filler for a heat exchange device that can appropriately separate the droplets of the gas phase heat exchange medium and the liquid phase heat exchange medium to be discharged and suppress the scattering of the droplets to the outside.

  The filler for a heat exchange device according to the present invention is composed of a substantially plate-like body provided with a large number of predetermined irregularities on the surface as a repeated pattern shape. A liquid phase heat exchange medium disposed as a part and flowing down along the uneven surface portion and a gas phase heat exchange medium flowing in a direction perpendicular to the flow direction of the liquid phase heat exchange medium In the filler for a heat exchange device that is brought into contact and exchanges heat, the filler has a substantially rectangular shape, and at least the uneven region is used as a heat exchange part, and as a part of the heat exchange device A pattern-shaped eliminator is formed on the end side that is the outflow side of the gas-phase heat exchange medium in a state of being arranged, and the predetermined unevenness different from the unevenness in the heat exchange portion is repeated along the end side direction. And a heat exchange part of the filler A non-contact portion that does not contact each other with the adjacent filler in a state where a plurality of fillers are stacked and integrated is provided in parallel with the end of the eliminator portion. Each unevenness of the eliminator part is formed as a continuous shape with an inclination descending from the end side toward the side where the non-contact part and the heat exchange part are located, and the filling material is a position of the unevenness in the eliminator part. In a state in which the relationship is interchanged with each other and the other fillers in a pair of shapes are alternately overlapped and integrated into a plurality, the eliminator parts of the adjacent fillers are the convex part and the convex part on the back side of the concave part. An air flow passage portion that allows the gas phase heat exchange medium to pass between the concave portion and the concave portion on the back side of the convex portion while being bonded, and between the non-contact portion in the adjacent filler, It creates voids that continue in parallel.

  As described above, according to the present invention, the eliminator portion having the predetermined unevenness is formed on the end side of the filler forming the part of the heat exchange device on the gas phase heat exchange medium outlet side, and the heat in the filler is formed. In a state where a non-contact portion is provided between the exchange portion and the eliminator portion and a plurality of fillers are stacked and integrated, the concavities and convexities of each eliminator portion in this filler group are combined to form a gas phase heat exchange medium An airflow passage that allows the air to pass through is generated, and a gap is formed between the non-contacting portions of the adjacent fillers, so that liquid can flow from each airflow passage to the gap, and liquid can flow down the gap. It is said. As a result, while the gas phase heat exchange medium that is ventilated for heat exchange passes through the airflow passage part, the liquid phase heat exchange medium droplets carried on the gas phase heat exchange medium are transferred to the uneven surface of the eliminator part. The droplets can be collected by the eliminator unit by contacting the liquid, and the liquid derived from the droplets generated on the uneven surface of the eliminator unit is surely allowed to flow down from the airflow passage part to the outside through the gap part, and the liquid is allowed to flow It is possible to prevent the liquid from staying, and it is possible to prevent the staying liquid from being newly scattered as liquid droplets, and to suppress the diffusion of liquid droplets to the outside of the heat exchange device due to ventilation and the adverse effects associated therewith. In addition, since it is possible to suppress droplet scattering without installing an eliminator separately from the filler, it is possible to reduce various costs related to the introduction of the droplet scattering prevention function in the heat exchange device.

  Further, the filler for a heat exchange device according to the present invention has, as necessary, the cross-sectional shape of the space portion surrounded by the back side concave portion of the convex portion and the space portion surrounded by the concave portion as the eliminator portion is approximately. Formed in a shape having a concavo-convex pattern that becomes a trapezoidal shape, in a state where a plurality of the fillers are stacked and integrated, the gap generated between the concave portion of the eliminator portion of the adjacent filler and the back side concave portion of the convex portion The cross-sectional shape of the airflow passage portion is substantially hexagonal.

  As described above, according to the present invention, the unevenness of the eliminator part is formed in the space part surrounded by the recesses and the back side of the convex part so that the cross-sectional shape of the airflow passage part is substantially hexagonal in a state where a plurality of fillers are integrated. By forming the cross-sectional shape as a substantially trapezoidal shape, the wall surface around the airflow passage section through which the gas phase heat exchange medium passes can be arranged in a substantially hexagonal shape and maintain a strong and stable state. The liquid-phase heat exchange medium that adheres to the eliminator part with the surfaces of the eliminator part as slopes or vertical surfaces when the filler is in use, is less likely to generate vibration, etc. It is possible to prompt the liquid droplets to flow down, and to quickly transfer the liquid droplets from the airflow passage portion to the space between the non-contact portions, thereby reliably preventing the droplets from re-scattering in the airflow passage portion.

It is a schematic block diagram of the cooling tower using the filler for heat exchange apparatuses which concerns on one Embodiment of this invention. It is a front view of the filler for heat exchange devices concerning one embodiment of the present invention. It is a right view of the filler for heat exchange apparatuses which concerns on one Embodiment of this invention. It is a left view of the filler for heat exchange apparatuses which concerns on one Embodiment of this invention. It is a top view (Drawing 5 (A)) and a bottom view (Drawing 5 (B)) of a filler for heat exchange equipment concerning one embodiment of the present invention. The enlarged front view (FIG. 6 (A)) of the upper right part in the filler for heat exchange devices which concerns on one Embodiment of this invention (FIG. 6 (A)), an enlarged plan view (FIG. 6 (B)), and an enlarged right side view (FIG. 6 (C) )). An enlarged front view (FIG. 7 (A)), an enlarged bottom view (FIG. 7 (B)), and an enlarged right side view (FIG. 7 (FIG. 7 (B)) of the lower right portion of the filler for a heat exchange device according to an embodiment of the present invention. C)). The side view (FIG. 8 (A)) seen from the air flow path part continuation direction of the lower right part in the filler for heat exchange apparatuses which concerns on one Embodiment of this invention, and multiple integrated state explanatory drawing of a filler (FIG. 8) (B)).

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In this embodiment, an example of a filler that constitutes a heat exchange unit that exchanges heat between circulating water that is a liquid phase heat exchange medium and air that is a gas phase heat exchange medium in an open cooling tower as a heat exchange device. Will be described.

  As shown in the respective drawings, the filler 10 according to the present embodiment is formed as a thin substantially plate-like body made of reinforced plastic or the like, and is stacked and integrated in a standing state so as to heat the cooling tower 20. The exchange unit 21 is formed.

  The cooling tower 20 using the filler 10 according to the present embodiment includes a heat exchange unit 21 made of the filler 10 for exchanging heat between the circulating water and air, and the circulating water disposed on the upper side of the heat exchange unit 21. An upper water tank 22 that distributes and drops this circulating water to each part of the heat exchange unit 21, a lower water tank 23 that is disposed below the heat exchange part 21 and collects the circulating water that has passed through the heat exchange unit 21, This is a configuration of a known open-type cooling tower provided with a fan 24 that is disposed above the center of the water tank 23 and allows the outside air to pass between the fillers 10 of the heat exchange unit 21 by an induced draft.

  The heat exchanging unit 21 is formed by integrating a large number of fillers 10 and is disposed in a pair above the lower water tank 23 with a space below the fan 24 interposed therebetween. Circulating water is provided in a gap between the fillers 10. It is a well-known configuration in which outside air is passed in the horizontal direction while being dropped, and direct heat exchange between circulating water and air is performed in the vicinity of the surface of the filler 10, and detailed description thereof is omitted.

  The upper water tank 22 is formed of a shallow box-like body having a large number of small holes at the bottom, and on the upper side of the heat exchange unit 21, a predetermined circulation path that exits the lower water tank 23 and leads to a refrigerator, an air conditioner, and the like. This is a well-known configuration in which circulating water is supplied via the circulatory water, and this circulating water is distributed and dripped uniformly at a predetermined amount of water from a large number of holes at the bottom toward each part of the heat exchange unit 21, and detailed description thereof is omitted. To do.

  The lower water tank 23 is disposed on a support frame 25 that is fixedly installed. The lower water tank 23 receives the circulating water that has flowed down and collects it while temporarily storing it. Is omitted), and pipes for introducing and delivering circulating water (not shown) are connected to each other, and detailed description thereof is omitted.

  In addition, the fan 24 passes outside air from the lateral direction to each heat exchange unit 21 by a draft air through a central space sandwiched between the pair of heat exchange units 21 below and passes through the heat exchange unit 21 sideways. The exhaust is blown upward and discharged out of the cooling tower, and detailed description is omitted.

  The filler 10 has a substantially rectangular shape, and has a configuration in which a large portion of the central portion is used as the heat exchanging portion 11 and a large number of predetermined irregularities are provided on the surface as repeated pattern shapes. And in the state arrange | positioned as a part (heat exchange unit) of a cooling tower, the said unevenness | corrugation in the heat exchange part 11 is made into the edge part of the filler 10 used as the outflow side of the air which is a gaseous-phase heat exchange medium. The eliminator 12 having a pattern shape in which different predetermined irregularities are repeated along the edge direction is formed.

  Specifically, the eliminator unit 12 is in a standing arrangement state as the heat exchange unit 21 of the filler 10, and the direction of the eliminator unit 12 is lowered as it proceeds from the end of the filler with the eliminator 12 to the inward of the heat exchange unit 11. The convex portion 12a has a ridge shape, and the concave portion 12b has a groove shape, each having a predetermined length, so as to form an inclined pattern. And these unevenness | corrugations are formed so that each cross-sectional shape of the space part enclosed by the back side recessed part part of the convex part 12a and the space part enclosed by the recessed part 12b may become substantially trapezoid shape, respectively.

  In the eliminator unit 12, the pitch of the arrangement of the concave and convex portions to be a repetitive pattern in the end side direction is constant, and in order to appropriately function as an eliminator, the convex portion 12a (or the concave portion 12b) is within a range of 100 mm in the end side direction. ) Is set so that the number of arrangements is 2 to 3. In addition, it is preferable that the inclination angle of the concave / convex direction is about 30 to 60 ° from the horizontal direction. The angle of the inclination relates to the uneven shape, for example, the size of the unevenness is large, that is, in a state where a plurality of the fillers 10 are stacked and integrated, the recesses 12b and the protrusions 12a in the adjacent fillers. As the opening cross-sectional area of the opening portion (airflow passage portion 14 to be described later) generated between the rear side portion and the rear side portion of the opening increases, the inclination angle increases.

  Further, between the heat exchange part 11 and the eliminator part 12 of the filler 10, a plurality of fillers 10 are stacked and integrated, and a non-contact part 13 that does not contact each other with adjacent fillers. Is provided continuously in parallel with the end side portion where the eliminator portion 12 is provided.

  Unlike the other areas such as the heat exchanging portion 11 and the eliminator portion 12 when the filler 10 is molded, the non-contact portion 13 is formed as a substantially flat shape without positively adding irregularities. Thus, it is possible to obtain a state in which the adjacent fillers do not contact each other.

  As the non-contact portion, in addition to this, it is formed as a concavo-convex shape corresponding to the amount of protrusions and depressions of the concavo-convex in the adjacent heat exchanging portion or eliminator portion, or an adhesive is used for integration with the adjacent filler. When using, by setting the area where the adhesive is not placed while having the same uneven shape as the unevenness of the heat exchange part or eliminator part, a gap corresponding to the thickness of the adhesive is generated to avoid improper application. You may make it implement | achieve a contact state.

  The filler 10 is one of the cooling towers 20 in a state in which a plurality of fillers 10 are alternately stacked and integrated with other fillers 30 having a pair of shapes in which the positional relationship of the concave and convex portions of the eliminator section 12 is interchanged. It is arrange | positioned as the heat exchange unit 21 which is a part. In addition, as the heat exchange unit 21 of the cooling tower 20, a configuration in which a plurality of fillers 10 and 30 are aligned and combined together while contacting the spacer portion 15 and the spacer receiving portion 16 that are formed for maintaining a mutual interval, Since it is a well-known thing, detailed description is abbreviate | omitted.

  The filler group as the heat exchange unit 21 flows in the transverse direction orthogonal to the flowing direction of the circulating water as the liquid phase heat exchange medium flowing down along the uneven surface portion of the heat exchanging portion 11. It is a mechanism in which heat is exchanged by directly contacting air as a gas phase heat exchange medium.

  In the state integrated as the heat exchange unit 21 (see FIG. 8B), in the fillers 10 and 30, the eliminator parts 12 of the adjacent fillers contact the convex part 12a and the convex part on the back side of the concave part 12b. On the other hand, an airflow passage portion 14 that allows air to pass between the concave portion 12b and the back side concave portion of the convex portion 12a is generated.

  This air flow passage portion 14 is generated corresponding to the pitch of the repeated arrangement of the convex portions 12a (concave portions 12b), and the number of the convex portions 12a is 2 to 3 in the range of 100 mm in the end side direction described above. By doing so, two or three side openings are formed in the range of 100 mm in the edge direction between the adjacent fillers and serving as outlets of the airflow passage section 14.

  Thus, at the outside air outlet portion of the heat exchange unit 21, the eliminator 12 of the filler 10 passes outside air that has passed between the heat exchangers 11 of the filler 10 to the fan 24 side, while water droplets scattered from between the heat exchangers 11. And an eliminator function that makes it difficult for water droplets to scatter from the heat exchanging portion 11 side to the downstream side in the outside air outflow direction is realized.

  On the other hand, between the adjacent fillers, at a position of the non-contact portion 13, a predetermined parallel that is parallel to the end direction of the eliminator portion 12 and parallel to the flow-down direction of the heat exchange portion 11 of the circulating water. A gap having a width is generated, and water collected by the eliminator 12 flows into the gap from the eliminator 12, and the water flows down the gap and is discharged out of the heat exchange unit 21. .

  In the heat exchange unit 21, the cross-sectional shape of the airflow passage portion 14 generated between the eliminator portions 12 of adjacent fillers is substantially hexagonal based on the uneven pattern shape of the eliminator portion 12. That is, since the wall surface around the airflow passage portion 14 through which air passes is arranged in a substantially hexagonal shape, it can maintain a stable state in strength, hardly generate vibrations or the like even when subjected to the force of airflow, Can function as an eliminator. In addition, in the state where the filler is used as the heat exchange unit 21, each surface of the eliminator unit 12 is a slope or a vertical surface. It is possible to promptly shift from the passage portion 14 to the gap between the non-contacting portions 13, and reliably prevent re-scattering of water droplets in the airflow passage portion 14.

  Next, the use state of the cooling tower using the heat exchanger packing material based on the above-described configuration will be described. Under normal cooling tower operation, heat is absorbed by a refrigerator or air conditioner on the circulation path, and the circulating water as the liquid-phase heat exchange medium to be cooled is taken out from a predetermined position in the circulation path. When returning to the cooling tower 20, the circulating water is first introduced into the upper water tank 22. In the upper water tank 22, the circulating water passes through a plurality of small holes at the bottom of the water tank in a predetermined time and is distributed and dropped to each part of the lower heat exchange unit 21.

  The circulating water that has reached the heat exchange unit 21 proceeds to each gap between the fillers 10 forming the heat exchange unit 21, and flows down along the filler 10, while being drawn by the fan 24 to the space between the fillers. Contact with external air introduced laterally. Circulating water is cooled mainly by the cooling action due to heat transfer (sensible heat) accompanying the temperature difference between air and circulating water and the cooling action due to the evaporation heat (latent heat) of the circulating water, while the air is reversed by heat exchange. The temperature will rise.

  Thus, the circulating water is cooled through heat exchange with the air in the heat exchange unit 21, and then reaches the lower water tank 23 and is collected. The circulating water accumulated in the lower water tank 23 enters the circulation path again from the water tank outlet, newly absorbs heat by a refrigerator, an air conditioner or the like, and then returns to the cooling tower 20 to repeat the above process.

  On the other hand, the air whose temperature has been raised by exchanging heat with the circulating water passes laterally through the gaps between the fillers 10 constituting the heat exchange unit 21 by the attraction of the fan 24. At this time, a part of the circulating water flowing down the surface of each filler 10 reaches the airflow passage portion 14 generated between the eliminator portions 12 of the filler 10 together with the air that is about to pass through the heat exchange unit 21 as water droplets.

  In the airflow passage portion 14 generated by the eliminator portion 12 of the filler 10, water drops separated from the circulating water and carried by the air while the air proceeds toward the outside of the heat exchange unit 21, and the surrounding eliminator portion 12. It is collected by adhering to the surface, and the arrival of these water droplets outside the fan 24 and the cooling tower can be suppressed. Then, the water droplets adhering to the eliminator section 12 flow down based on the inclination of the unevenness of the eliminator section 12 and reach a void portion sandwiched between the non-contacting portions 13 of the adjacent fillers 10. The water that has reached the gap portion flows down the gap portion as it is, and flows down from between the fillers 10 to the lower lower water tank 23.

  In this way, water is guided to the gap between the non-contacting portions 13 to prevent the water from staying in the airflow passage portion 14 while adhering to the eliminator portion 12, so that the water once recovered by the eliminator portion 12 is air again. You can avoid the situation of being transported to the outside and scattered. Further, the water component is concentrated by evaporation of the water accumulated in the eliminator section 12, and the scale does not lead to precipitation of the scale. The adverse effects of scale, such as corrosion, can be prevented, and maintenance effort and costs can be reduced.

  The air that has passed through the gap between the heat exchanging portions 11 by the fan 24 and reaches the airflow passage portion 14 between the eliminator portions 12 is filled with the circulating water flowing down the heat exchanging portion 11 here. Non-contact dry heat exchange (sensible heat exchange) through the material 10 is performed. Thus, since the eliminator part 12 without flowing down of the circulating water along the surface can also contribute to cooling of the circulating water, the area of the heat exchanging part is larger than that of the conventional in the filler 10 because the eliminator part 12 is formed at the end. Even if it becomes small, the heat exchange capability equivalent to the conventional case which does not use an eliminator part is securable. On the other hand, by the dry heat exchange in the eliminator unit 12, the temperature of the outside air rises with the humidity unchanged.

  In addition, the water collected by the eliminator unit 12 and flowing down to reach the lower water tank 23 is used again as circulating water from the water tank outlet as circulating water in the same manner as other water in the lower water tank. Further, the air that has passed through the eliminator section 12 of the filler 10 and has exited the heat exchange unit 21 is exhausted to the outside of the cooling tower by the fan 24, and the exhausted air diffuses into the outside air.

  As described above, in the heat exchanger packing material according to the present embodiment, the eliminator portion 12 having predetermined irregularities is formed on the end portion of the filler 10 forming part of the cooling tower 20 on the outside air outlet side. In addition, a non-contact portion 13 is provided between the heat exchanging portion 11 and the eliminator portion 12 in the filler 10, and in a state where a plurality of fillers 10 are overlapped and integrated, each eliminator portion in this filler group The twelve irregularities combine to form an obliquely upward airflow passage portion 14 through which air is allowed to pass, while a gap is formed between the non-contacting portions 13 of the adjacent fillers. Water can flow downward through the gap. As a result, while the air ventilated for heat exchange passes through the airflow passage portion 14, the water droplet carried on the air is brought into contact with the uneven surface portion of the eliminator portion 12, and the water droplet can be collected by the eliminator portion 12. In addition, the water generated on the uneven surface of the eliminator 12 can be surely allowed to flow down from the airflow passage 14 to the outside through the gap, and the water can be prevented from staying in the airflow passage 14. It is possible to prevent the water droplets from being newly scattered and to suppress the outflow of the water droplets accompanying the ventilation and the diffusion of the water droplets to the outside air and the adverse effects associated therewith.

  Further, when the air as the gas phase heat exchange medium travels between the fillers 10, the eliminator 12 is a part of the filler 10, and therefore, between the heat exchanger 11 of the filler and the eliminator 12. When the air moves, the gap between the filler and the eliminator, which is a conventional separate body, never reaches the eliminator while interacting with the air passing between the other fillers. In addition, the pressure loss during the movement of the air to the eliminator unit 12 can be minimized, and the heat exchange performance in the filler can be ensured appropriately.

  In the heat exchanger packing material according to the above-described embodiment, the eliminator unit 12 is provided only at the end portion on the air outflow side when the filler material 10 is disposed as the heat exchange unit 21 of the cooling tower 20. However, the present invention is not limited to this, and an eliminator unit that collects water droplets on the surface and collects them is also formed on the end side of the filler on the inflow side of the gas phase heat exchange medium such as air. It can also be configured. In this case, when the fan is stopped, a part of the liquid phase heat exchange medium such as circulating water that flows along the surface of the heat exchange section close to the edge on the inflow side collides with the unevenness of the heat exchange section to form water droplets. Since there is no ventilation, it is possible to prevent a situation in which the air does not get drawn into the interior and jumps out from between the fillers, and an adverse effect due to scattered water droplets can be prevented.

DESCRIPTION OF SYMBOLS 10 Filling material 11 Heat exchange part 12 Eliminator part 12a Convex part 12b Concave part 13 Non-contact part 14 Airflow path part 15 Spacer part 16 Spacer receiving part 20 Cooling tower 21 Heat exchange unit 22 Upper water tank 23 Lower water tank 24 Fan 25 Support frame

Claims (2)

The surface having a rough surface is formed of a substantially plate-like body having a large number of predetermined irregularities on the surface as a repeated pattern shape, and is arranged as a part of a heat exchange device in a state in which a plurality of standing uprights are stacked and integrated. A liquid-phase heat exchange medium flowing down along a portion and a gas-phase heat exchange medium flowing in a direction orthogonal to the flow-down direction of the liquid-phase heat exchange medium are in direct contact with each other for heat exchange. In the filler
The filler has a substantially rectangular shape, and at least the uneven region is used as a heat exchanging portion, and becomes an outflow side of the gas phase heat exchange medium in a state of being disposed as a part of the heat exchange device. A predetermined concavo-convex different from the concavo-convex in the heat exchanging part is formed on the end side part, and a pattern-shaped eliminator part is repeated along the end side direction,
A non-contact portion that does not contact the adjacent filler in a state where a plurality of fillers are stacked and integrated between the heat exchanging portion and the eliminator portion of the filler, and the edge where the eliminator portion is located Provided in parallel with
Each concavo-convex portion of the eliminator part is formed as a continuous shape with an inclination descending from the end side toward the side where the non-contact part and the heat exchange part are located,
In the state in which the fillers are alternately overlapped with other fillers in a pair of shapes in which the positional relationship of the unevenness in the eliminator part is replaced with each other, and a plurality of the eliminator parts of the adjacent fillers are integrated with each other. Creates an airflow passage portion for allowing the gas phase heat exchange medium to pass between the concave portion and the back side concave portion of the convex portion while joining the convex portion and the convex portion on the back side of the concave portion. A filler for a heat exchanging device, characterized in that a gap portion continuous in parallel with the end side is generated between the contact portions. In the heat exchanger filling material according to claim 1,
The eliminator part is formed in a shape having a concave-convex pattern in which each cross-sectional shape of the space part surrounded by the back side concave part of the convex part and the space part surrounded by the concave part is substantially trapezoidal,
In a state where a plurality of the fillers are stacked and integrated, the cross-sectional shape of the airflow passage portion formed between the concave portion of the eliminator portion of the adjacent filler and the back side concave portion of the convex portion is substantially hexagonal. A filler for a heat exchange device.

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