Packing module for cooling tower

Abstract

The utility model relates to a packing module for a cooling tower, which is provided with a rectangular packing sheet A and a rectangular packing sheet B which are alternately stacked at specified intervals to form a first flow path and a second flow path which are alternately arranged, and an upper section guide part and a lower section guide part are respectively arranged on an upper section and a lower section. The upper section guide part comprises a plurality of first upper end openings and second upper end openings which are formed in the upper surface of the filler module, and the first upper end openings are located on one side perpendicular to the stacking direction, arranged side by side in the stacking direction and communicated with the first flow path; the second upper end openings are located on the other side perpendicular to the stacking direction, arranged in parallel in the stacking direction and communicated with the second flow path, the lower section guide part comprises a plurality of first lower end openings and second lower end openings which are formed in the lower surface of the filler module and located on the two sides of the stacking direction respectively, and the first lower end openings are arranged in parallel in the stacking direction and communicated with the first flow path; and second lower end openings provided in parallel in the stacking direction and communicating with the second flow path. The structure is further simplified, installation is convenient, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to a module of a cooling tower, in particular to a filler module in a cooling tower. Background Art

[0002] As a heat exchange packing sheet technology for cooling towers, the applicant's prior patent 201910877463.9, whose application date is July 15, 2019, discloses a packing module that separates the downward hot water flow path and the upward cold air flow path. In the packing module, hot water flows in from an opening formed at a portion of the width of the upper end of the packing module, and an opening for air to flow through is formed at another portion of the width of the upper end of the packing module. Four types of packing sheets A, B, C, and D are required to make the packing module, and it has been proven that the cooling effect on hot water is quite high.

[0003] In order to further simplify the structure, facilitate installation and reduce costs, the applicant has not stopped further development of the product. Utility Model Content

[0004] In view of the above-mentioned prior art, the utility model aims to further simplify the structure, facilitate installation and reduce the cost of the packing sheet using this principle without reducing the heat exchange efficiency.

[0005] The utility model provides a packing module for a cooling tower, characterized in that it has rectangular packing sheets A and packing sheets B alternately stacked at a specified interval to form alternately arranged first and second flow paths, and an upper section guide portion and a lower section guide portion are respectively arranged in the upper and lower sections, the upper section guide portion includes a plurality of first upper end openings and a second upper end openings arranged on the upper surface of the packing module, the first upper end openings are located on one side perpendicular to the stacking direction, arranged in parallel along the stacking direction, and connected to the first flow path; the second upper end openings are located on the other side perpendicular to the stacking direction, arranged in parallel along the stacking direction, and connected to the second flow path, the lower section guide portion includes a plurality of first lower end openings and a second lower end openings arranged on the lower surface of the packing module, the first lower end openings are located on one side perpendicular to the stacking direction, arranged in parallel along the stacking direction, and connected to the first flow path; the second lower end openings are located on the other side perpendicular to the stacking direction, arranged in parallel along the stacking direction, and connected to the second flow path.

[0006] Furthermore, the filling module of the present invention is preferably provided with a heat exchange portion between the upper guide portion and the lower guide portion, including a first heat exchange portion in the form of a flat cavity formed between the filling sheets BA, which is alternately stacked in the stacking direction; and a second heat exchange portion in the form of a flat cavity formed between the filling sheets AB.

[0007] Furthermore, the packing module of the present invention is preferably configured such that the total opening size of the first upper end opening, the second upper end opening, the first lower end opening and the second lower end opening in the stacking direction is substantially consistent with the stacking thickness of the packing module.

[0008] Furthermore, the packing module of the present invention is preferably provided with a rectifying sheet between each of the upper openings and each of the lower openings and the first heat exchange part. The transverse cross section of each rectifying sheet is in a folded shape, and abuts against the packing sheet on both sides of the folded shape.

[0009] Furthermore, the filling module of the present invention is preferably configured such that the distance between the filling sheet A and the filling sheet B is d, so that the flexure amplitude of each rectifying sheet at its respective upper end opening and lower end opening is large and the flexure span is small, and in the process of extending toward the heat exchange portion, the flexure amplitude gradually decreases and the flexure span gradually increases.

[0010] Furthermore, the packing module of the present invention is preferably configured such that, in the upper guide portion,

[0011] The upper end of the packing sheet A on one side perpendicular to the stacking direction is biased toward one side of the stacking direction, and the upper end of the packing sheet B on one side perpendicular to the stacking direction is biased toward the other side of the stacking direction, so that on the side perpendicular to the stacking direction of the upper guide portion, the packing sheets A and the packing sheets B are closely attached to each other in the stacking direction, while the packing sheets B and the packing sheets A are open to each other in the stacking direction, thereby forming the first upper end opening;

[0012] The upper end of the packing sheet B on the other side perpendicular to the stacking direction is biased toward one side of the stacking direction, and the upper end of the packing sheet A on the other side perpendicular to the stacking direction is biased toward the other side of the stacking direction, so that on the other side perpendicular to the stacking direction of the upper guide portion, the packing sheets B and the packing sheets A are closely attached to each other in the stacking direction, while the packing sheets A and the packing sheets B are open to each other in the stacking direction, thereby forming the second upper end opening;

[0013] In the lower guide section,

[0014] The lower end of the packing sheet A on one side perpendicular to the stacking direction is biased toward one side of the stacking direction, and the lower end of the packing sheet B on one side of the stacking direction is biased toward the other side of the stacking direction, so that on the side perpendicular to the stacking direction of the lower guide portion, the packing sheets A and the packing sheets B are closely attached to each other in the stacking direction, while the packing sheets B and the packing sheets A are open to each other in the stacking direction, thereby forming the first lower end opening;

[0015] The lower end portion of the filler sheet B on the other side perpendicular to the stacking direction is biased toward one side of the stacking direction, and the lower end portion of the filler sheet A on the other side perpendicular to the stacking direction is biased toward the other side of the stacking direction, so that on the other side perpendicular to the stacking direction of the lower guide portion, the filler sheets B and filler sheets A are tightly attached to each other in the stacking direction, while the filler sheets A and filler sheets B are open to each other in the stacking direction to form the second lower end opening.

[0016] Furthermore, the filling module of the present invention is preferably formed in the upper guide portion, the upper guide portion of the filling sheet A and the filling sheet B is formed so that the parts on both sides of the stacking direction are respectively biased in the opposite directions of the stacking direction; and in the lower guide portion, the lower guide portion of the filling sheet A and the filling sheet B is formed so that the parts on both sides of the stacking direction are respectively biased in the opposite directions of the stacking direction.

[0017] Furthermore, the filling module of the present invention is preferably that the offset amount of at least one of the upper guide portion of the filling sheet A and the upper guide portion of the filling sheet B on both sides of the stacking direction is not zero, and the offset amount of at least one of the lower guide portion of the filling sheet A and the lower guide portion of the filling sheet B on both sides of the stacking direction is not zero.

[0018] Furthermore, the filling module of the present invention is preferably that the upper guide portion of the filling sheet A and the upper guide portion of the filling sheet B have different offset amounts on both sides of the stacking direction; the lower guide portion of the filling sheet A and the lower guide portion of the filling sheet B have different offset amounts on both sides of the stacking direction.

[0019] Furthermore, the filling module of the present invention is preferably that the first upper opening and the second upper opening, and the first lower opening and the second lower opening on both sides of the stacking direction have the same width, and the rectifying plates arranged between each of the upper openings and each of the lower openings to the first heat exchange part are the same components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of a packing module of the first embodiment of the utility model;

[0021] Figure 2 is an exploded view of a packing module according to a first embodiment of the present utility model;

[0022] Figure 3 is a three-dimensional diagram of a packing sheet A in the first embodiment of the present utility model;

[0023] Figure 4 is a three-dimensional diagram of a packing sheet B in the first embodiment of the present utility model;

[0024] Figure 5 is a three-dimensional diagram of a rectifier sheet in the first embodiment of the utility model;

[0025] Figure 6 It is a perspective view of the stacked rectifying sheet on the front side of the filler sheet A in the first embodiment of the utility model;

[0026] Figure 7 is Figure 6 A three-dimensional diagram of a filler sheet B and a rectifying sheet further stacked on the front side.

[0027] Figure 8 is a top exploded view of a packing module according to a first embodiment of the present utility model;

[0028] Fig. 9 is a top view of a packing module according to a first embodiment of the present utility model;

[0029] Fig.10 It is an embodiment of a cooling tower using the filler module of the utility model;

[0030] Fig.11 It is another embodiment of a cooling tower using the filler module of the utility model.

[0031] Explanation of symbols

[0032] 1. Filling module 1

[0033] A, packing sheet A; B, packing sheet B

[0034] R1, first flow path; R2, second flow path

[0035] 200, upper guide portion;

[0036] 210, first upper end opening; 220, second upper end opening

[0037] 201, upper left guide; 202, upper right guide

[0038] 230, upper left rectifier; 240, upper right rectifier

[0039] 300, lower guide

[0040] 310, first lower end opening; 320, second lower end opening

[0041] 301, lower left guide section; 302, lower right guide section

[0042] 330, left lower rectifier; 340, right lower rectifier

[0043] 400. Heat exchange unit

[0044] 401, first heat exchange part; 402, second heat exchange part

[0045] 10. Cooling tower; 101. Air intake layer; 102. Air door; 103. Filling layer;

[0046] 104, spraying part; 105, partition; 105a, spraying space; 105b, air entraining space;

[0047] 106, exhaust layer; 107, fan; 108, exhaust port; 109, cover plate;

[0048] Rw, water flow path; Ra, air flow path

[0049] 20. Cooling tower; 205a. Spraying space; 205b. Air bleed space DETAILED DESCRIPTION

[0050] Below, in conjunction with the accompanying drawings, the preferred embodiments of the present utility model are described in detail.

[0051] First embodiment

[0052] In this embodiment, the packing module 1 includes packing sheets A and packing sheets B alternately stacked at a predetermined interval d. The stacked packing sheets A and B form alternately arranged first flow paths R1 and second flow paths R2 in the packing module 1 .

[0053] Figure 1 It is a structural diagram of a packing module of the first embodiment of the utility model; Figure 2 is an exploded view of a packing module according to a first embodiment of the present utility model; Figure 3 is a three-dimensional diagram of a packing sheet A in the first embodiment of the present utility model; Figure 4 is a three-dimensional diagram of a packing sheet B in the first embodiment of the present utility model; Figure 5 is a three-dimensional diagram of a rectifier sheet in the first embodiment of the utility model; Figure 6 It is a perspective view of the stacked rectifying sheet on the front side of the filler sheet A in the first embodiment of the utility model; Figure 7 is Figure 6 A three-dimensional diagram of a filler sheet B and a rectifying sheet further stacked on the front side. Figure 8 is a top exploded view of a packing module according to a first embodiment of the present utility model; Fig. 9 It is a top view of the filling module according to the first embodiment of the present invention.

[0054] An upper guide portion 200 and a lower guide portion 300 are formed at the upper and lower sections of the filler module 1 , respectively, and a heat exchange portion 400 is formed at the middle section.

[0055] [Upper guide section 200]

[0056] At the upper end of the upper guide portion 200, a guide port is formed by alternating upper end portions of rectangular filler pieces A and B, as described below.

[0057] On one side perpendicular to the stacking direction (the left side in the figure), the upper end of the packing sheet A is offset to one side of the stacking direction (the back side in the figure), while the upper end of the packing sheet B is offset to the opposite side (the front side in the figure), so that the upper ends of the left sides of the packing sheets AB are attached to each other in the stacking direction from the front side to the back side in the figure, and the upper ends of the left sides of the packing sheets BA are opened to form the first upper end opening 210. For the packing module 1, multiple first upper end openings 210 are arranged in parallel in the stacking direction. Thus, the first upper end opening 210 is connected to the first flow path R1 formed between the packing sheets BA.

[0058] On the other side (right side in the figure) perpendicular to the stacking direction, the upper end of the packing sheet A is offset to the other side (front side in the figure) of the stacking direction, while the upper end of the packing sheet B is offset to the opposite side (rear side in the figure), so that the upper ends of the right sides of the packing sheets BA are attached to each other in the stacking direction from the front side to the rear side in the figure, and the upper ends of the right sides of the packing sheets AB are opened to form the second upper end opening 220. For the packing module 1, a plurality of second upper end openings 220 are arranged in parallel in the stacking direction. Thus, the first upper end opening 220 is connected to the first flow path R2 formed between the packing sheets AB.

[0059] In the upper guide portion 200, a left upper path rectifying piece 230 is embedded in the flow path space of the first flow path R1 between the first upper end opening 210 formed by the packing piece BA and the heat exchange portion 400 surrounded by the packing piece BA. The upper end of the left upper path rectifying piece 230 matches the width of the first upper end opening 210, and the width gradually increases from top to bottom, and the lower end corresponds to the width of the heat exchange portion 400 (the first heat exchange portion 401 of the first flow path).

[0060] In this embodiment, the left upper path rectifying piece 230 has a flexural shape in the transverse cross section perpendicular to the stacking direction, and the two sides of the flexural shape in the stacking direction, that is, the back side abuts against the front surface of the packing piece A clamping it, and the front side abuts against the rear surface of the packing piece B clamping it. Thus, in the first flow path R1 formed between the first upper end opening 210 and the first heat exchange part 401, which is approximately a right-angled trapezoid, a guide portion is formed that guides the width of the first upper end opening 210 to the full width of the heat exchange part 400 that is approximately the width of the packing pieces A and B.

[0061] In the upper guide portion 200, a right upper path rectifying piece 240 is embedded in the flow path space of the second flow path R2 between the second upper end opening 220 formed by the packing piece AB and the heat exchange portion 400 surrounded by the packing piece AB. The upper end of the right upper path rectifying piece 240 matches the width of the second upper end opening 220, and the width gradually increases from top to bottom, and the lower end corresponds to the width of the heat exchange portion 400 (the first heat exchange portion 402 of the second flow path).

[0062] In this embodiment, the right upper path rectifying piece 240 has a flexural shape in the transverse cross section perpendicular to the stacking direction, and the two sides of the flexural stacking direction, namely, the back side abuts against the front surface of the packing piece B clamping it, and the front side abuts against the rear surface of the packing piece A clamping it. Thus, in the second flow path R2 formed between the second upper end opening 220 and the second heat exchange part 402, which is approximately a right-angled trapezoid, a guide portion is formed that guides the width of the second upper end opening 220 to the full width of the heat exchange part 400 that is approximately the width of the packing pieces A and B.

[0063] [Lower guide section 300]

[0064] At the lower end of the lower guide portion 300, the lower end portions of the packing pieces A and B are alternately arranged to form a guide opening, as described below.

[0065] On one side perpendicular to the stacking direction (the left side in the figure), the lower end of the packing sheet A is offset to one side in the stacking direction (the back side in the figure), while the lower end of the packing sheet B is offset to the opposite side (the front side in the figure), so that in the stacking direction from the front side to the back side in the figure, the lower ends of the left sides of the packing sheets AB are attached to each other, and the lower ends of the left sides of the packing sheets BA are open to each other to form a first lower end opening 310. Thus, the first lower end opening 310 is connected to the first flow path R1 formed between the packing sheets BA.

[0066] On one side (right side in the figure) perpendicular to the stacking direction, the lower end of the packing sheet A is offset to the other side (front side in the figure) in the stacking direction, while the lower end of the packing sheet B is offset to the opposite side (rear side in the figure), so that the lower ends of the left sides of the packing sheets BA are attached to each other in the stacking direction from the front side to the rear side in the figure, and the lower ends of the left sides of the packing sheets AB are open to form a second lower end opening 320. Thus, the first lower end opening 320 is connected to the first flow path R2 formed between the packing sheets AB.

[0067] In the lower guide portion 300, a left lower path rectifying piece 330 is embedded in the flow path space of the first flow path R1 between the first lower end opening 310 formed by the packing piece BA and the heat exchange portion 400 surrounded by the packing piece BA. The lower end of the left lower path rectifying piece 330 matches the width of the first lower end opening 310, and the width gradually increases from bottom to top, and the upper end corresponds to the width of the heat exchange portion 400.

[0068] In this embodiment, the left lower path rectifying piece 330 has a flexural shape in the transverse cross section perpendicular to the stacking direction, and the flexural back side abuts against the front surface of the packing piece A, and the front side abuts against the rear surface of the packing piece B. Thus, in the first flow path R1 formed between the first lower end opening 310 and the first heat exchange part 401, which is approximately an inverted right-angled trapezoid, a guide portion is formed that guides the width of the first lower end opening 310 to the full width of the heat exchange part 400 that is approximately the width of the packing pieces A and B.

[0069] In the lower guide portion 300, a right lower path rectifying piece 340 is embedded in the flow path space of the second flow path R2 between the second lower end opening 320 formed by the packing piece AB and the heat exchange portion 400 surrounded by the packing piece AB. The lower end of the right lower path rectifying piece 340 matches the width of the second lower end opening 320, and the width gradually increases from top to bottom, and the lower end corresponds to the width of the heat exchange portion 400.

[0070] In this embodiment, the right lower path rectifying piece 340 has a flexural shape in a transverse cross section perpendicular to the stacking direction, and the flexural back side abuts against the front surface of the packing piece B, and the front side abuts against the rear surface of the packing piece A. Thus, in the second flow path R2 formed between the second lower end opening 320 and the second heat exchange part 402, which is approximately an inverted right-angled trapezoid, a guide portion is formed that guides the width of the second lower end opening 320 to the full width of the heat exchange part 400 that is approximately the width of the packing pieces A and B.

[0071] The packing module 1 is formed by alternately stacking the packing sheets A and the packing sheets B, thereby forming the first flow passages R1 and the second flow passages R2 which are isolated from each other and alternately stacked in the packing module 1. The configuration of the first flow passages R1 and the second flow passages R2 will be described in detail below.

[0072] [Unit of the first flow path R1]

[0073] In this embodiment, for the packing module 1, in the stacking direction from the front to the rear in the figure, adjacent packing sheets B and the packing sheet A located behind the packing sheet B, that is, the packing sheet BA form a unit of the first flow path R1.

[0074] As shown in the figure, the first flow path R1 includes, from top to bottom, a first upper end opening 210 located on the left side of the upper end of the filling module 1; a left upper section guide portion 201 located between the filling pieces B and A and filled by the left upper path straightening sheet 230; a first heat exchange portion 401 which is a flat cavity formed between the filling pieces BA in the stacking direction at the heat exchange portion 400; a left lower section guide portion 301 located between the filling pieces B and A and filled by the left lower path straightening sheet 330; and a first lower end opening 310 located on the left side of the lower end of the filling module 1.

[0075] Thus, in this embodiment, a unit of the first flow path R1 as a flat cavity is formed between adjacent filler sheets B and filler sheets A, and the first upper end opening 210 as its upper end opening and the first lower end opening 310 as its lower end opening are located on the same side perpendicular to the stacking direction.

[0076] [Unit of the second flow path R2]

[0077] In this embodiment, for the packing module 1, in the stacking direction from the front to the rear in the figure, adjacent packing sheets A and packing sheets B located behind the packing sheets A, that is, packing sheets AB form a unit of the second flow path R2.

[0078] As shown in the figure, the second flow path R2 includes, from top to bottom, a second upper end opening 220 located on the right side of the upper end of the filling module 1; a right upper section guide portion 202 located between the filling sheets A and B and filled by the right upper path straightening sheet 240; a second heat exchange portion 402 which is a flat cavity formed between the filling sheets AB in the stacking direction at the heat exchange portion 400; a right lower section guide portion 302 located between the filling sheets A and B and filled by the right lower path straightening sheet 340; and a second lower end opening 320 located on the right side of the lower end of the filling module 1.

[0079] Thus, in this embodiment, a unit of the first flow path R1 as a flat cavity is formed between adjacent filler sheets A and B, and the second upper end opening 220 as its upper end opening and the second lower end opening 320 as its lower end opening are located on the same side perpendicular to the stacking direction.

[0080] [Heat exchange unit 400]

[0081] The first heat exchange parts 401 and the second heat exchange parts 402 are alternately stacked to form a heat exchange part 400 in which the first flow paths R1 and the second flow paths R2 are alternately stacked to perform intermittent heat exchange.

[0082] [Upper and lower openings of the flow path]

[0083] As described above, in the stacking direction of the packing sheets A and B, the first flow path R1 and the second flow path R2 of the flat cavity are formed between the packing sheets BA and the packing sheets AB, respectively, so that the first flow path R1 and the second flow path R2 are alternately stacked. Therefore, for the packing module 1, the first and second upper end openings 210 and 220 are formed at the upper end edge and are arranged in parallel perpendicular to the stacking direction.

[0084] In this embodiment, as shown in the figure, the first upper end opening 210 is formed on the left side. Since the upper left end of the packing sheet A is biased toward the back side in the figure, and the upper left end of the packing sheet B is biased toward the front side in the opposite figure, the upper left ends of the packing sheets AB are attached to each other, and the upper left ends of the packing sheets BA are open to each other. Thus, the strip-shaped openings of the upper left ends of the packing sheets BA are open to each other, and are arranged in parallel in the stacking direction through the upper left ends of the attached packing sheets AB to form a complete first upper end opening 210. Without considering the thickness of the packing sheet, it is equivalent to forming an open first upper end opening 210 in the entire area of ​​the upper end of the packing module 1 perpendicular to the stacking direction (the left side in the figure).

[0085] Similarly, the second upper end opening 220 is formed on the right side. Contrary to the first upper end opening 210, the upper right end of the packing sheet B is biased toward the back side in the figure, while the upper right end of the packing sheet A is biased toward the front side in the opposite figure, so that the upper right ends of the packing sheets BA are attached to each other, while the upper right ends of the packing sheets AB are open to each other. Thus, the strip-shaped openings of the upper right ends of the packing sheets AB are open to each other, and are arranged in parallel in the stacking direction through the upper right ends of the attached packing sheets BA to form a complete second upper end opening 220. Without considering the thickness of the packing sheet, it is equivalent to forming an open second upper end opening 220 in the entire area of ​​the other side (the right side in the figure) of the upper end of the packing module 1 perpendicular to the stacking direction.

[0086] On the other hand, the first and second upper openings 210 and 220 are formed at the lower edge and arranged in parallel in a direction perpendicular to the stacking direction.

[0087] In this embodiment, as shown in the figure, the first lower end opening 310 is formed on the left side. Since the lower left end of the packing sheet A is biased toward the back side in the figure, and the lower left end of the packing sheet B is biased toward the front side in the opposite figure, the lower left ends of the packing sheets AB are attached to each other, and the lower left ends of the packing sheets BA are open to each other. Thus, the strip-shaped openings of the lower left ends of the packing sheets BA are open to each other, and are arranged in parallel in the stacking direction through the lower left ends of the attached packing sheets AB to form a complete first lower end opening 310. Without considering the thickness of the packing sheet, it is equivalent to forming an open first lower end opening 310 in the entire area of ​​the side (left side in the figure) of the lower end of the packing module 1 perpendicular to the stacking direction.

[0088] Similarly, the second lower end opening 320 is formed on the right side. Contrary to the first lower end opening 310, the lower right end of the packing sheet B is biased toward the back side in the figure, while the lower right end of the packing sheet A is biased toward the front side in the opposite figure, so the lower right ends of the packing sheets BA are attached to each other, while the lower right ends of the packing sheets AB are open to each other. Thus, the strip-shaped openings of the lower right ends of the packing sheets AB are open to each other, and are arranged in parallel in the stacking direction through the lower right ends of the attached packing sheets BA to form a complete second lower end opening 320. Without considering the thickness of the packing sheet, it is equivalent to forming an open second lower end opening 320 in the entire area of ​​the other side (right side in the figure) of the lower end of the packing module 1 perpendicular to the stacking direction.

[0089] [Opening of flow path]

[0090] The first flow path R1 will be described in further detail from top to bottom.

[0091] As described above, the first flow path R1 is formed at the upper end of the packing module 1, which is equivalent to forming a first upper end opening 210 in the entire left area perpendicular to the stacking direction, and at the first upper end opening 210, the portion where the upper ends of the left sides of the packing sheets AB are bonded to each other is divided into a plurality of units. In the upper left guide section 201, after passing downward through the portion where the upper ends of the left sides of the packing sheets AB are bonded to each other, the units of the first flow path R1 are separated from each other in the stacking direction, and on the one hand, the size gradually decreases in the stacking direction, and on the other hand, the size gradually increases perpendicular to the stacking direction to approximately the width of the packing sheets A and B to form a flat shape, that is, the thickness decreases and the width increases, and the units of the first heat exchange section 401 that enter the flat heat exchange space defined by the packing sheet BA of the heat exchange section 400 from the upper guide section 200.

[0092] When continuing downward from the heat exchange section 400 to the lower guide section 300, in contrast to the situation in the upper guide section 200, the unit of the first flow path R1 moves downward from a flat shape having approximately the width of the fillers A and B, gradually increasing in size in the stacking direction on the one hand, and gradually decreasing in size perpendicular to the stacking direction to the width of the second lower end opening 220 on the other hand, that is, the thickness increases and the width decreases, and converges in the left lower guide section 301 at the part where the left lower ends of the fillers AB are bonded to each other, and reaches the first lower end opening 310.

[0093] Therefore, in the first flow path R1 , the flow path cross-sectional area of ​​the entire flow path from the first upper end opening 210 through the upper guide portion 200 , the heat exchange portion 400 , the lower guide portion 300 to the first lower end opening 310 theoretically does not change substantially.

[0094] The second flow path R2 has a rotationally symmetrical structure with the first flow path R1, which will be described in detail below.

[0095] As described above, the second flow path R2 is formed at the upper end of the packing module 1, which is equivalent to forming a second upper end opening 210 in the entire right area perpendicular to the stacking direction, and at the second upper end opening 210, the portion where the upper right end portions of the packing sheet BA are bonded to each other is divided into a plurality of units. In the right upper section guide 202, after passing downward through the portion where the upper right end portions of the packing sheet BA are bonded to each other, the units of the first flow path R1 are separated from each other in the stacking direction, and on the one hand, the size gradually decreases in the stacking direction, and on the other hand, the size gradually increases perpendicular to the stacking direction to approximately the width of the packing sheets A and B to form a flat shape, that is, the thickness decreases and the width increases, and the units of the second heat exchange section 402 that enter the flat heat exchange space defined by the packing sheet AB in the heat exchange section 400 from the upper section guide 200.

[0096] When continuing downward from the heat exchange section 400 to the lower guide section 300, in contrast to the situation in the upper guide section 200, the unit of the second flow path R2 moves downward from a flat shape having approximately the width of the fillers A and B, gradually increasing in size in the stacking direction on the one hand, and gradually decreasing in size perpendicular to the stacking direction to the width of the second lower end opening 220 on the other hand, that is, the thickness increases and the width decreases, and converges in the right lower guide section 302 at the part where the right lower end portions of the fillers BA are bonded to each other, and reaches the second lower end opening 320.

[0097] Therefore, in the second flow path R2, the flow path cross-sectional area of ​​the entire flow path from the second upper end opening 220 through the upper guide portion 200, the heat exchange portion 400, the lower guide portion 300 to the second lower end opening 320 theoretically does not change substantially.

[0098] As described above, in this embodiment, the first and second upper openings 210 and 220, which are the upper openings of the first and second flow paths R1 and R2, have a total opening area that is consistent with the total flow path cross-sectional area of ​​each portion from top to bottom. Similarly, the first and second lower openings 310 and 320, which are the lower openings of the first and second flow paths R1 and R2, have a total opening area that is consistent with the total flow path cross-sectional area of ​​each portion from top to bottom, that is, the opening areas of the upper and lower ends of the packing module 1 are consistent with the horizontal cross-sectional area of ​​the packing module 1, thereby greatly improving the fluid flow rate and flow efficiency of each flow path R1 and R2 and reducing the resistance of the packing module 1, which will be further described in detail later.

[0099]

Rectifier

[0100] In this way, when the straightening pieces 230, 240, 330, 340 are embedded in each guide part 201, 202, 301, 302, that is, the straightening pieces 230, 240, 330, 340 are embedded in their respective first and second flow paths R1, R2, since each straightening piece 230, 240, 330, 340 is formed in a flexural shape, and the extension direction of the flexural protrusion corresponds to the extension path of the first and second flow paths R1, R2, the thickness of each straightening piece 230, 240, 330, 340 is far different from the flow path cross-sectional area of ​​the first and second flow paths R1, R2, and therefore will not affect the passing efficiency of the first and second flow paths R1, R2.

[0101] In addition, in the present embodiment, the first upper end opening 210 and the second upper end opening 220, which are the upper end openings of the first and second flow paths R1 and R2, are arranged side by side at right angles to the stacking direction and have approximately the same width, so that the left upper path straightening piece 230 and the right upper path straightening piece 240, which are respectively located in the left upper section guide portion 201 and the right upper section guide portion 202, have approximately the same structure of their accommodation spaces and are arranged in a rotationally symmetrical manner, so that the same components can be used to constitute the left upper path straightening piece 230 and the right upper path straightening piece 240.

[0102] Similarly, the first lower end opening 310 and the second lower end opening 320, which are the lower end openings of the first and second flow paths R1 and R2, are arranged side by side at right angles to the stacking direction and have approximately the same width, so that the left lower path straightening piece 330 and the right lower path straightening piece 340, which are respectively located in the left lower section guide portion 301 and the right lower section guide portion 302, have approximately the same structure of their accommodation spaces and are arranged in a rotationally symmetrical manner, so the same components can be used to constitute the left lower path straightening piece 330 and the right lower path straightening piece 340.

[0103] Furthermore, in this embodiment, by making the height of the upper guide 200 and the lower guide 300 substantially the same, the structures of the receiving spaces of the rectifying pieces 230, 240, 330, 340 are substantially the same, so that the same components can be used to constitute the upper left rectifying piece 230, the upper right rectifying piece 240, the lower left rectifying piece 330, and the lower right rectifying piece 340. In this way, when manufacturing the packing module 1, only the packing piece A, the packing piece B, and the common rectifying piece are needed, so that the production cost of the packing module 1 is significantly reduced and the assembly efficiency is significantly improved.

[0104] Second embodiment

[0105] In this embodiment,

[0106]

Cooling Tower 1

[0107] Fig.10 This is a schematic diagram of a cooling tower manufactured based on the filler module 1 of this embodiment.

[0108] The bottom layer of the cooling tower 10 is an air intake layer 101, and a plurality of dampers 102 are arranged around the air intake layer 101. A packing layer 103 is arranged above the air intake layer 101, and the packing layer 103 is arranged in a matrix shape on a horizontal plane by a plurality of packing modules 1. A spraying part 104 is arranged above the packing layer 103, and the spraying part 104 sprays the hot water to be treated to each packing module 1 of the packing layer 103. A partition 105 extending along the stacking direction of the packing module 1 is roughly vertically arranged in the area between the spraying part 104 and the packing layer 103, and a plurality of partition spaces 105a and 105b are surrounded by the partition 105 and the top surface of the packing module 1, wherein the partition space 105a is used as a spraying space for spraying hot water, and the partition space 105b is used as an air induction space for sucking gas from bottom to top. The spray space 105a and the air entrainment space 105b are alternately arranged in a direction perpendicular to the stacking direction of the matrix composed of the filling modules 1, and each partition 105 is arranged at the intersection of the first upper end opening 210 and the second upper end opening 220 of the filling module 1, thereby separating the first flow path R1 and the second flow path R2 connected to the first upper end opening 210 and the second upper end opening 220.

[0109] Above the spray section 104 is the exhaust layer 106, and above the exhaust layer 106 is an exhaust port 108 provided with a fan 107. The fan 107 draws air upward, so that cold air enters the air intake layer 101 from the damper 102 in the lower layer of the cooling tower 10, passes upward through each packing module 1 of the packing layer 103, passes through the spray space 105a and the inducing space 105b respectively, is further mixed in the exhaust layer 106, and is discharged upward through the exhaust port 108.

[0110] On the other hand, the hot water to be treated sprayed from the spraying part 104 to each packing module 1 of the packing layer 103 is cooled by each packing module 1 and falls to the bottom surface of the air inlet layer 101. The cooled water is recovered through the collection equipment for recycling in the factory.

[0111] Working status 1:

[0112] As described above, the cooling tower 10 is set to the winter working state. At this time, the hot water to be treated sprayed from the spray part 104 is confined in the spray space 105a and enters one of the two flow paths of the packing module 1. In this embodiment, since the partition 105 is arranged at the intersection of the first upper end opening 210 and the second upper end opening 220 relative to the packing module 1, the first and second flow paths R1 and R2 adjacent to each other between two adjacent packing modules 1 both form a water flow path Rw, and the outer flow paths R1 and R2 are respectively adjacent to the second and first flow paths adjacent to both sides, and both form an air flow path Ra.

[0113] In the water flow path Rw, the spray water flows into the packing module 1, passes through the upper guide part 200, and forms a water film distributed in the heat exchange part 400 in a flat space of substantially the entire width of the packing module 1 and attached to the wall surfaces on both sides of the stacking direction of the flat space. The adjacent flow paths on both sides in the stacking direction serve as air flow paths Ra, which perform heat exchange with the hot water in the water flow path Rw through the wall surfaces of the packing sheets A and B.

[0114] When the cooling tower 10 is working in winter, the air sucked into the air flow path Ra from the bottom of the packing module 1 is dry cold air with low air temperature and low water content. When heat exchange occurs with hot water in the air flow path Ra passing through the packing module 1, the heat exchange is completed in an independent flow path completely separated by the packing sheets A and B. Therefore, when it is discharged from the top of the packing module 1, the temperature rises, but the water content at this time does not change, that is, dry hot air is formed.

[0115] On the other hand, since there is hot water sprayed from the spraying part 104 above in the water flow path Rw, the air sucked by the fan 107 in the water flow path Rw encounters a large resistance, so the air flow rate is very small relative to the air flow through the air flow path Ra, usually only a few. The air flowing through the air flow path Ra will form hot saturated air, that is, hot and humid air.

[0116] The dry hot air flowing through the air flow path Ra and the humid hot air flowing through the water flow path Rw are mixed in the exhaust layer 106. Since there is less humid hot air, unsaturated hot air is formed after mixing with the dry hot air. After being discharged into the atmosphere through the fan 107 and the exhaust port 108, the unsaturated hot air is gradually cooled and less water is precipitated, thereby greatly reducing the amount of fog formed.

[0117] In this embodiment, by switching the spray part 104, the spray space 105a and the induced air space 105b can be flexibly switched, that is, stop spraying hot water on the spray space 105a, and spray hot water on the induced air space 105b. In this way, the functions of the spray space 105a and the induced air space 105b can be swapped. On the one hand, the normal operation of the cooling tower 10 can be guaranteed, and on the other hand, the flow path R1 or R2 of the packing module 1 connected to the induced air space 105b can be effectively cleaned and maintained, so that when the cooling tower 10 is cleaned and maintained, the normal operation of the cooling tower 10 is not affected.

[0118] Working status 2:

[0119] When working in summer, the spraying part 104 can be adjusted to spray hot water to the causing space 105b and the spraying space 105a in the same manner, so as to ensure that the cooling tower 10 has the heat exchange efficiency as high as possible without fogging in summer.

[0120]

Cooling Tower 20

[0121] In this embodiment, the filler module 1 is still used as the cooling tower 20, and only the differences from the cooling tower 10 are described in detail, and the same structures are not repeated.

[0122] The cooling tower 20 of this embodiment is different from the above cooling tower 10 in that, for each spraying space 105a, a cover plate 109 is further arranged roughly horizontally on the upper part of the partition 105 along the stacking direction of the packing module 1. A plurality of partition spaces 205a and 205b are enclosed by the cover plate 109, the partition 105 and the packing module 1. In this embodiment, the cover plate 109 is only arranged in the spraying space 205a for spraying hot water, and the cover plate 109 is not arranged for the air intake space 205b for exhausting air; of course, the cover plate 109 can also be arranged for both the spraying space 105a and the air intake space 205b, and the cover plate 109 can be arranged in a continuous plate shape or a combination of multiple plates, and the cover plate 109 can be turned over or turned in half along the partition 105 on one side or both sides to form a detachable or openable manner, so that the spraying space 205a and the air intake space 205b can be switched.

[0123] Working status 1:

[0124] This working state is particularly suitable for the winter in northern my country. In this state, the working process of the cooling tower 20 is similar to that of the above-mentioned cooling tower 10, except that a cover plate 109 is provided above the spray space 205a. Therefore, the spray space 205a does not play the role of air induction in principle, and only hot water passes downward through the flow path R1 or R2 of the packing module corresponding to the spray space 205a. Therefore, in the exhaust layer 106 of the cooling tower 20, there is only dry hot air from the exhaust space 205b.

[0125] Therefore, from the cooling tower 20, only dry hot air is sucked by the fan 107 and discharged from the exhaust port 108, so that the moisture in the hot air discharged from the cooling tower 20 is reduced as much as possible, thereby further improving the defogging ability of the cooling tower 20 in winter. Moreover, since the discharged air is only dry hot air, the amount of moisture discharged from the cooling tower 20 is also less, which is more conducive to water saving.

[0126] When both the spray space 205a and the inducing space 205b are provided with openable and closable (flat opening, split opening or removable) covers 109, by opening the cover above the spray space 205a and closing the cover above the inducing space 205b, and adjusting the spray part 104, the functions of the spray space 205a and the inducing space 205b can be exchanged in the same way as the above-mentioned cooling tower 10, and the flow path R1 or R2 of the filling module 1 corresponding to the original inducing space 205b can be cleaned, thereby avoiding shutdown of the cooling tower 20.

[0127] Of course, by only opening the cover plate 109, the same working state as the above-mentioned cooling tower 10 can be achieved, and its working efficiency and working results are also substantially the same.

[0128] Working status 2:

[0129] In the summer working state, by removing or opening the cover 109 above the spray space 205a, the spray part 104 is adjusted so that hot water is sprayed to the spray space 205b in the same way as the spray space 205a, so that the cooling tower 20 can achieve the same working state of improving the heat exchange efficiency in summer as the above-mentioned cooling tower 10.

[0130] In the cooling tower 20 of the present embodiment, the cover plate 109 arranged above the partition spaces 205a, 205b is a flat plate, but is not limited thereto. It can also be a plate extending toward the middle from the partition plates 105 on both sides of the stacking direction of the filling modules 1 of the partition spaces 205a, 205b, and overlapping to close the partition spaces 205a, 205b, forming an upward or downward vertex angle at the overlapping portion, that is, as long as the upper part of the partition spaces 205a, 205b can be closed, there is no limitation on the configuration of the cover plate 109.

[0131] In the above embodiment, the flow straightening piece 230 is provided in the upper left guide portion 201 of the upper flow guide portion 200 of the first flow path R1 formed between the packing pieces BA in the stacking direction of the packing modules 1 .

[0132] Furthermore, the flow straightening piece 240 is provided in the right upper stage guide portion 202 of the upper stage flow guide portion 200 of the second flow path R2 formed between the packing pieces AB in the stacking direction.

[0133] On the other hand, the flow straightening piece 330 is provided in the left lower stage guide portion 301 of the lower stage flow guide portion 300 of the first flow path R1 which is formed between the packing pieces BA in the stacking direction.

[0134] Furthermore, the flow straightening piece 340 is provided in the right upper stage guide portion 202 of the lower stage flow guide portion 300 of the second flow path R2 formed between the packing pieces AB in the stacking direction.

[0135] Since the first upper opening 210 and the second upper opening 220 respectively occupy approximately half of the width of the packing module 1, in fact, the rectifying piece 230 is embedded in a roughly right-angled trapezoidal area enclosed by the approximately middle of the upper edge of the packing piece BA, downward through the left edge of the upper guide part 200, and then along the lower end line of the side upper guide part 200 to the right to the right edge of the upper guide part 200, and then obliquely upward to the approximately middle of the upper edge of the packing piece A (B). For the packing piece A, it is biased to the rear side at the right-angled trapezoidal area, and on the contrary, for the packing piece B, it is biased to the front side, so that, in the stacking direction, the front packing piece A and the rear packing piece B, that is, the packing piece AB, form a close connection at the periphery of the first upper opening 210, so the width of the opening in the stacking direction between the front packing piece B and the rear packing piece A, the packing piece BA at the first upper opening 210 is 2d. That is to say, in the area of ​​the right-angled trapezoid, the distance in the stacking direction at the first upper end opening 210 at the upper end is approximately 2d, and the distance in the stacking direction at the part where the lower end is connected to the heat exchange part 400 is the interval d between the filler sheets A and B, thereby forming a space for the upper left section guide part 201.

[0136] The cross section of the rectifying piece 230 in the horizontal direction is in a folded shape extending perpendicular to the stacking direction. The upper portion near the first upper end opening 210 has a large folding amplitude and a small folding span. In the process of extending from top to bottom toward the heat exchange portion 400, the folding amplitude gradually decreases and the folding span gradually increases to fill the space of the left upper section guide portion 201. By making the rectifying piece 230 fold in the horizontal direction, a plurality of guide flow paths from the first upper end opening 210 to the heat exchange portion 400 are formed. Each guide flow path is thick in the stacking direction at the upper end and small in the horizontal direction, and a flow path with a small thickness and a large width at the lower end, so that the hot water flowing in from the first upper end opening 210 with a width of approximately half of the packing module 1 can be effectively and evenly guided to the heat exchange portion 400 with a width of approximately the full width of the packing module 1. In addition, whether it is a single guide flow path or an overall guide flow path, the cross-sectional area change of the guide flow path from top to bottom is as small as possible to reduce the resistance of the fluid. Good passing efficiency can be achieved for hot water sprayed from above and air sucked from below.

[0137] The rectifying piece 240 located in the space of the right upper stage guide portion 202 has the same structure, except that the arrangement position is rotationally symmetrical with respect to the rectifying piece 240 in the horizontal direction.

[0138] The flow straightening pieces 330 and 340 are respectively provided in the left lower section guide part 301 formed by offsetting the inverted right-angled trapezoidal area of ​​the packing piece BA at the lower section guide part 300 to the outside in the stacking direction, and the right lower section guide part 302 formed by offsetting the inverted right-angled trapezoidal area of ​​the packing piece AB at the lower section guide part 300 to the outside in the stacking direction, similarly to the left upper section guide part 201 and the right upper section guide part 202 located in the upper section guide part 200. The flow straightening pieces 330 and 340 form a plurality of flow paths in the left lower section guide part 301 and the right lower section guide part 302, respectively, with the upper end having a small thickness in the stacking direction and a large width in the horizontal direction, and the lower end having a large thickness and a small width, so as to guide the water from the heat exchange part 400 having the first and second flow paths R1 and R2 of the packing module 1 having substantially the full width to the first and second lower end openings 310 and 320 having substantially the half width.

[0139] That is, for the rectifying pieces 330 and 340, they are inverted, with a large bending amplitude and a small bending span at the first and second lower end openings 310 and 320. In the process of extending from bottom to top toward the heat exchange part 400, the bending amplitude gradually decreases and the bending span gradually increases.

[0140] The flow straightening piece 330 located in the space of the left lower stage guide portion 301 and the flow straightening piece 340 located in the space of the right lower stage guide portion 302 are similarly rotationally symmetric in the horizontal direction.

[0141] Therefore, when the first and second upper openings 210, 220 and the first and second lower openings 310, 320 are both approximately half the width of the filling module 1, if the vertical lengths of the upper and lower section guides 200, 300 are made the same, the left upper section guide 201, the right upper section guide 202, the left lower section guide 301, and the right lower section guide 302 can form a rotationally symmetrical structure, so that the straightening pieces 230, 240, 330, 340 can be the same components, so that the filling module 1 only needs three components when it is manufactured, namely, the filling piece A, the filling piece B and the universal straightening piece. This not only significantly reduces the mold cost and the component production cost for manufacturing the filling module 1, but also when assembling the filling piece A, the filling piece B and the straightening piece, there is no need to consider the model differences of the straightening pieces, which makes assembly convenient, thereby greatly reducing the overall production cost of the filling module 1.

[0142] According to the above preferred embodiment, by offsetting and fitting the filling sheet A and the filling sheet B in the upper guide portion and the lower guide portion respectively, the first upper end opening, the second upper end opening, the first lower end opening and the second lower end opening are respectively stacked in the stacking direction, and without considering the thickness of the filling sheets A and B, the total size of the openings in the stacking direction is roughly consistent with the stacking thickness of the filling module in the stacking direction.

[0143] The above is a detailed description of the packing module of the preferred embodiment of the utility model and the cooling tower with the packing module, but those skilled in the art can make various modifications, changes, combinations, etc. on this basis, and these modifications, changes, and combinations all fall within the scope of protection of the claims of this application.

Claims

1. A packing module for a cooling tower, It is characterized in that The invention has rectangular packing sheets A and packing sheets B alternately stacked at a predetermined interval to form first and second flow paths alternately arranged, and an upper stage guide portion and a lower stage guide portion are respectively arranged in the upper and lower stages. The upper guide portion includes a plurality of first upper end openings and a second upper end opening disposed on the upper surface of the filling module. The first upper end opening is located on a side perpendicular to the stacking direction, arranged in parallel along the stacking direction, and communicated with the first flow path; The second upper end opening is located on the other side perpendicular to the stacking direction, arranged in parallel along the stacking direction, and communicated with the second flow path. The lower guide portion includes a plurality of first lower end openings and a second lower end opening arranged on the lower surface of the filling module. The first lower end opening is located on a side perpendicular to the stacking direction, arranged in parallel along the stacking direction, and communicated with the first flow path; The second lower end opening is located on the other side perpendicular to the stacking direction, arranged in parallel along the stacking direction, and communicated with the second flow path. A heat exchange portion is provided between the upper guide portion and the lower guide portion, including: A first heat exchange portion in the form of a flat cavity formed between the packing sheets BA; and The second heat exchange part is formed as a flat cavity between the packing sheets AB. A flow path space approximately in a right-angle trapezoid is formed between the first upper end opening and the first heat exchange portion and between the second upper end opening and the second heat exchange portion; A flow path space approximately shaped like an inverted right-angled trapezoid is formed between the first lower end opening and the first heat exchange portion and between the second lower end opening and the second heat exchange portion.

2. The packing module according to claim 1, Features: The total opening size of the first upper end opening, the second upper end opening, the first lower end opening and the second lower end opening in the stacking direction is substantially consistent with the stacking thickness of the filling module.

3. The packing module according to claim 2, Features: A rectifying sheet is provided in each of the upper openings and in the flow path space between each of the lower openings and the heat exchange portion. The transverse cross section of each rectifying sheet is in a flexural shape, and is in contact with the filler sheet at both sides of the flexural shape.

4. The packing module according to claim 3, Features: The distance between the packing sheet A and the packing sheet B is d. Then, each rectifying piece has a large flexure amplitude and a small flexure span at its respective upper end opening and lower end opening. In the process of extending toward the heat exchange portion, the flexure amplitude gradually decreases and the flexure span gradually increases.

5. The packing module according to any one of claims 1 to 4, Features: In the upper guide section, The upper end of the packing sheet A on one side perpendicular to the stacking direction is biased toward one side of the stacking direction, and the upper end of the packing sheet B on one side perpendicular to the stacking direction is biased toward the other side of the stacking direction, so that on the side perpendicular to the stacking direction of the upper guide portion, the packing sheets A and the packing sheets B are closely attached to each other in the stacking direction, while the packing sheets B and the packing sheets A are open to each other in the stacking direction, thereby forming the first upper end opening; The upper end of the packing sheet B on the other side perpendicular to the stacking direction is biased toward one side of the stacking direction, and the upper end of the packing sheet A on the other side perpendicular to the stacking direction is biased toward the other side of the stacking direction, so that on the other side perpendicular to the stacking direction of the upper guide portion, the packing sheets B and the packing sheets A are closely attached to each other in the stacking direction, while the packing sheets A and the packing sheets B are open to each other in the stacking direction, thereby forming the second upper end opening; In the lower guide section, The lower end of the packing sheet A on one side perpendicular to the stacking direction is biased toward one side of the stacking direction, and the lower end of the packing sheet B on one side of the stacking direction is biased toward the other side of the stacking direction, so that on the side perpendicular to the stacking direction of the lower guide portion, the packing sheets A and the packing sheets B are closely attached to each other in the stacking direction, while the packing sheets B and the packing sheets A are open to each other in the stacking direction, thereby forming the first lower end opening; The lower end portion of the filler sheet B on the other side perpendicular to the stacking direction is biased toward one side of the stacking direction, and the lower end portion of the filler sheet A on the other side perpendicular to the stacking direction is biased toward the other side of the stacking direction, so that on the other side perpendicular to the stacking direction of the lower guide portion, the filler sheets B and filler sheets A are tightly attached to each other in the stacking direction, while the filler sheets A and filler sheets B are open to each other in the stacking direction to form the second lower end opening.

6. The packing module according to claim 1, Features: In the upper guide portion, The upper guide portions of the packing sheet A and the packing sheet B are formed so that the portions on both sides of the stacking direction are offset in two opposite directions of the stacking direction respectively; In the lower guide portion, The lower guide portions of the packing piece A and the packing piece B are formed so that portions on both sides in the stacking direction are offset in two directions opposite to the stacking direction.

7. The packing module according to claim 6, Features: The offset amount of the portions on both sides of the stacking direction of at least one of the upper guide portion of the packing sheet A and the upper guide portion of the packing sheet B that are offset in the opposite directions of the stacking direction is not zero; At least one of the lower guide portion of the packing sheet A and the lower guide portion of the packing sheet B has portions on both sides in the stacking direction offset in two directions opposite to the stacking direction, and the offset amount is not zero.

8. The packing module according to claim 6, Features: The upper guide portion of the packing sheet A and the upper guide portion of the packing sheet B have different offset amounts on both sides of the stacking direction; The lower guide portion of the packing sheet A and the lower guide portion of the packing sheet B have different offset amounts on both sides in the stacking direction.

9. The packing module according to claim 3, Features: The widths of the first upper opening and the second upper opening, and the first lower opening and the second lower opening on both sides of the stacking direction are the same, The rectifying pieces arranged between each of the upper end openings and each of the lower end openings and the first heat exchange part are the same components.

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