Fastening assembly

Abstract

The utility model relates to a fastening assembly, relates to the technical field of accessories for assembling filler modules in a cooling tower, and comprises a rod and a fastening cap, one end of the rod protrudes outwards in the radial direction to form a fixing part, the outer contour of the rod is provided with a ratchet part extending in the axial direction, and the ratchet part is formed by sequentially arranging a plurality of ratchets in the axial direction of the rod; the fastening cap can be connected with the rod, and the fastening cap is provided with a pawl part which can be matched with the ratchet part; when the fastening cap is connected with the rod, the fastening cap is limited to only move towards the direction close to the fixing part in a one-way mode, and the construction speed of installing the filler module in the cooling tower can be greatly increased through the fastening assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a fastening component between and inside packing modules in a cooling tower. Background Art

[0002] As Figure 1 shown, the packing module 1 is used for heat exchange between cold air and hot water in the cooling tower. At the upper part of the packing module 1, a hot water inlet is formed on one side in its width direction, and an air outlet is formed on the other side in its width direction. At the lower part of the packing module 1, an air inlet for flowing in external air is formed on one side or the other side in its width direction, and a water outlet is formed on the other side or one side in its width direction.

[0003] During the construction of the cooling tower, it is necessary to install the packing module 1 inside the cooling tower. In some technical solutions, a frame is arranged outside the packing module 1 to realize the connection and fixation between the packing modules, which increases the manufacturing costs of the packing module and the cooling tower, increases the wind resistance, and has high construction difficulty. Summary of the Utility Model

[0004] In view of the above-mentioned prior art, one aspect of the utility model provides a fastening component, which includes:

[0005] a rod, at the end of which a fixing part protrudes radially outwards, and on the outer contour of the rod, a ratchet part extending axially is arranged, and the ratchet part is formed by a plurality of ratchets arranged in sequence along the axial direction of the rod; and

[0006] a fastening cap capable of being connected with the rod, and the fastening cap is provided with a pawl part capable of cooperating with the ratchet part; when the fastening cap is connected with the rod, the fastening cap is limited to move only in the direction close to the fixing part unidirectionally.

[0007] As a preferred embodiment, the fastening cap has a middle hole, and when the rod passes through the middle hole, the pawl part is connected with the ratchet part.

[0008] As a preferred embodiment, a connecting part is arranged between the pawl part and the fastening cap;

[0009] the pawl part and the ratchet part have a separated state when the connecting part is deformed, and an engaged state when the connecting part is reset.

[0010] As a preferred embodiment, the connecting part between the pawl part and the fastening cap has a necked-down shape.

[0011] As a preferred embodiment, an operating part is formed at the free end of the pawl part, and the position of the operating part is suitable for deforming the connecting part when being stressed.

[0012] As a preferred embodiment, a free end of the pawl portion extends away from the fastening cap to form an operating portion.

[0013] As a preferred embodiment, a free end of the pawl portion extends away from the fastening cap and deflects radially outward of the fastening cap to form an operating portion.

[0014] Another aspect of the present utility model further provides a fastening assembly, which includes:

[0015] A rod having a first end and a second end disposed opposite to each other, and an axially extending first ratchet portion and a second ratchet portion are provided on an outer contour thereof;

[0016] A first fastening cap, a pawl portion of the first fastening cap is connected to the first ratchet portion and is defined to be movable unidirectionally only from the first end to the second end direction;

[0017] A second fastening cap, a pawl portion of the second fastening cap is connected to the second ratchet portion and is defined to be movable unidirectionally only from the second end to the first end direction.

[0018] As a preferred embodiment, a necked connecting portion is provided between the pawl portion and the fastening cap;

[0019] The pawl portion and the ratchet portion have a separated state when the connecting portion is deformed, and a combined state when the connecting portion is reset.

[0020] As a preferred embodiment, an operating portion is formed at a free end of the pawl portion, and a position of the operating portion is adapted to deform the connecting portion when a force is applied.

[0021] According to the present utility model, by passing the rod through a through-hole portion on a protruding edge of a filler module to be connected, and then quickly installing the fastening cap on the rod, rapid assembly between the filler modules can be achieved, and the connection is firm. The above-mentioned fastening assembly can greatly improve the construction speed of installing the filler modules in a cooling tower. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of a partial structure on an upper side of a filler module and a connection structure between two filler modules;

[0023] Figure 2 It is a structural diagram of a fastener according to an embodiment of the present utility model;

[0024] Figure 3 For Figure 2 Side view of

[0025] Figure 4 It is a structural diagram of a fastener according to another embodiment of the present utility model;

[0026] Figure 5 For Figure 4 The structural diagram of another perspective of the shown fastener;

[0027] Figure 6 The schematic diagram of the installation structure of the fastener of an embodiment in the present utility model on the packing module;

[0028] Figure 7 For Figure 1 The structural diagram of another perspective and after splicing of the shown packing module;

[0029] Figure 8 The structural diagram of the fastener of another embodiment in the present utility model;

[0030] Figure 9 The schematic diagram of the installation structure of the fastener of an embodiment in the present utility model on the packing module;

[0031] Figure 10 The structural diagram of the fastening assembly of an embodiment in the present utility model;

[0032] Figure 11 For Figure 10 The cross-sectional view of the shown fastening assembly;

[0033] Figure 12 The schematic diagram of the structure of the fastening assembly applied to the packing module in the present utility model;

[0034] Figure 13 The cross-sectional view of the fastening assembly of another embodiment in the present utility model;

[0035] Figure 14 The schematic diagram of the structure of the packing module of an embodiment in the present utility model;

[0036] Figure 15 The schematic diagram of the structure of the packing module of another embodiment in the present utility model;

[0037] Figure 16 The usage example of the water leakage prevention system in the present utility model;

[0038] Figure 17 The schematic diagram of the structure of the cooling tower of an embodiment in the present utility model.

[0039] Symbol Explanation

[0040] 1, 1a, 1b, packing module;

[0041] 11, the first upper end opening; 12, the second upper end opening;

[0042] 13, the top connection edge; 14, the side connection edge;

[0043] 15. Upper edge sealing part;

[0044] A. Filler piece A; B. Filler piece B;

[0045] C. Protrusion sealing part; C1. First protrusion part; C2. Second protrusion part;

[0046] D. Sealing connection part; D1. First connection part; D2. Second connection part; D3. Through hole part;

[0047] R1. First flow path; R2. Second flow path;

[0048] U. Filler unit

[0049] 20, 20' Fasteners;

[0050] 21. Side wall; 22. Top wall; 23. Flanging part; 24. Notch;

[0051] 25. Clamping part; 251. Rib; 26. Lapping groove; 27. Bending structure; 28. Accommodating groove;

[0052] 29. Extension section; 210. Leakage prevention space; 211. Side wall body;

[0053] 30, 30' Fastening assemblies;

[0054] 31, 31' Rods; 32, 32' Ratchet parts; 33, 33' Fastening caps; 34. Pawl parts; 35. Operating parts;

[0055] 36. Fixing part; 37. First fastening surface; 38. Second fastening surface; 39. Connection part;

[0056] 40. Sealing strip; 41. Clamping groove; 42. End part; 43. Middle hole;

[0057] 100. Leakage prevention system;

[0058] 1000. Cooling tower;

[0059] 101. Intake layer; 102. Air damper; 103. Filler layer;

[0060] 104. Spraying part; 105. Partition board; 105a. Spraying space; 105b. Air guiding space; 106. Exhaust layer; 107. Fan; 108. Air outlet. Detailed implementation manners

[0061] Next, in conjunction with the drawings, the preferred implementation manners of the present utility model will be described in detail.

[0062] The filler module 1 includes filler sheets A and B which are alternately stacked, and the stacked filler sheets A and B form a first flow path R1 and a second flow path R2 within each filler module.

[0063] For the convenience of description, Figure 1 two adjacent filler modules 1 in [reference] are respectively labeled as filler module 1a and filler module 1b. The stacking direction of the filler module 1 is Figure 1 the front-back direction in [reference], and the width direction of the filler module 1 is Figure 1 the left-right direction in [reference].

[0064] Figure 1 Fig. [reference] shows a partial upper structure of the filler modules 1a and 1b and a schematic connection structure between the two filler modules. For a clear display, Figure 1 the connection gap between the filler module 1a and the filler module 1b in [reference] is enlarged.

[0065] As Figure 1 shown, on one side perpendicular to the stacking direction (the left side in the figure), the upper end of the filler sheet A deflects towards one side in the stacking direction (the back side in the figure), while the upper end of the filler sheet B deflects towards the opposite side (the front side in the figure), so that from Figure 1 the front side to the back side in the stacking direction, the upper ends on the left side of the filler sheets A-B are in contact with each other, while the upper ends on the left side of the filler sheets B-A are open to each other to form a first upper opening 11. For the filler modules 1a and 1b, a plurality of first upper openings 11 are arranged in parallel in the stacking direction. The first upper opening 11 communicates with the first flow path R1 formed between the filler sheets B-A.

[0066] On the other side perpendicular to the stacking direction (the right side in the figure), the upper end of the filler sheet A deflects towards the other side in the stacking direction (the front side in the figure), while the upper end of the filler sheet B deflects towards the opposite side, so that from the front side to the back side in the stacking direction shown in the figure, the upper ends on the right side of the filler sheets B-A are in contact with each other, while the upper ends on the right side of the filler sheets A-B are open to each other to form a second upper opening 12. For each filler sheet 1a and 1b, a plurality of second upper openings 12 are arranged in parallel in the stacking direction. The second upper opening 12 communicates with the second flow path R2 formed between the filler sheets A-B.

[0067] As Figure 1As shown, at the right edge in the width direction of the packing modules 1a and 1b, to form a seal for the second flow path R2, the right edge of the packing sheet A deflects and extends towards one side in the stacking direction (the back side in the figure), then deflects and extends to the right to form the first connecting portion D1; while the right edge of the packing sheet B deflects towards the other side in the stacking direction (the front side in the figure), extends, and then extends to the right to form the second connecting portion D2. The first connecting portion D1 of the packing sheet A and the second connecting portion D2 of the packing sheet B can be connected by ultrasonic welding, bonding, etc. to form a sealed connecting portion D.

[0068] Preferably, mutually engaging grooves and ridges can also be provided on the first connecting portion D1 and the second connecting portion D2, thereby improving the sealing performance of the sealed connecting portion D. For example, vertical grooves can be provided on the surface of the first connecting portion D1 facing the second connecting portion D2, and vertical ridges matching the above grooves can be provided on the surface of the second connecting portion D2 facing the first connecting portion D1; vice versa.

[0069] Through the above-mentioned deflecting and sealing connection structure, an edge sealing structure of the second flow path R2 is formed between the packing sheet A and the packing sheet B on the right side in the width direction of the packing modules 1a and 1b.

[0070] In one of the second flow paths R2, the adjacent packing sheets A and B on both sides in the stacking direction form a packing unit U. At the same time, since the first flow path R1 and the second flow path R2 are alternately stacked, in order to form the sealing edge of the first flow path R1, at the right side in the width direction of the packing modules 1a and 1b, the tops of two adjacent packing units U can be formed into a top connecting edge 13 by bonding, etc., and the right ends of two adjacent packing units U can be formed into a right-end connecting edge 14 by bonding, etc.

[0071] When assembling the packing module, first, a plurality of the above-mentioned packing units U are formed by ultrasonic welding the packing sheets A and B. Then, a plurality of the above-mentioned packing units U are formed into a packing module by bonding, etc. Ultrasonic welding has the advantages of good sealing performance and strong durability. However, due to structural limitations, it is difficult to perform ultrasonic welding between the packing units U.

[0072] In use, the packing modules 1a and 1b are used for heat exchange between cold air and hot water in a cooling tower. At the upper part of the packing modules 1a and 1b, a hot water inlet is formed on one side in its width direction, and an air outlet is formed on the other side in its width direction. At the lower part of the packing modules 1a and 1b, an air inlet for flowing in external air is formed on one side or the other side in its width direction, and a water outlet is formed on the other side or one side in its width direction.

[0073] Taking the first flow path R1 as the air flow path and the second flow path R2 as the flow path for spraying water as an example, hot water is sprayed into the second upper opening 12 on the right side of the packing modules 1a and 1b. However, if there is a leak at the sealed connection (top edge and edge in the width direction) between the packing sheet B and the packing sheet A, the hot water will enter the first flow path R1 through which air flows. Especially in winter in the north, the external air temperature is below zero, which will cause the water leaking into the first flow path R1 to freeze quickly, blocking the first flow path R1 and even damaging the packing modules 1a and 1b and the cooling tower, resulting in significant losses.

[0074] When installing the packing modules inside the cooling tower, the above problems will also occur if there is a leak in the connection gap between adjacent packing modules 1a and 1b. In order to form a seal on the connection surface between the packing modules 1a and 1b, the inventors of the present application have tried various technical means.

[0075] For example, glue is applied at the connection surface of the packing modules 1a and 1b. However, during on-site construction, the setting of the glue is affected by factors such as environmental temperature and humidity. Especially in winter, the glue sets slowly and leakage points are likely to occur.

[0076] Another example is to fill a sealing material between the packing modules 1a and 1b. Since the sealing material can only produce a sealing effect when it is subjected to sufficient extrusion pressure to reach a certain deformation amount, and the packing sheet is a plastic thin sheet, it is difficult to form sufficient extrusion pressure on the sealing material; if a frame is provided outside the packing modules 1a and 1b, it will increase the manufacturing cost of the packing modules and the cooling tower, increase the wind resistance, and the construction difficulty and the risk of water leakage are still relatively high.

[0077] For the above reasons, the sealing between the packing modules in the stacking direction has become a technical problem that is difficult to solve and urgently needs to be solved. The inventors of the present application have conducted in-depth exploration and practice, and finally systematically and ingeniously solved the above technical problem, which will be described in detail below.

[0078]

Fastener 20

[0079] Figure 2 It is a structural diagram of the fastener 20 according to an embodiment of the present utility model; Figure 3 For Figure 2 the side view; Figure 4 It is a structural diagram of the fastener 20 according to another embodiment of the present utility model; Figure 5 For Figure 4 a structural diagram of the fastener 20 shown in another perspective; Figure 6 It is a schematic installation structure diagram of the above fastener 20 on the packing module.

[0080] Such as Figures 2 to 6As shown, the fastener 20 includes a side wall 28 and a top wall 22 connected to the top end of the side wall 28 and extending to one side. A water leakage prevention space 210 is formed on the lower side of the top wall 22. The top wall 22 is used to block the end position of the connection gap on the upper side of the packing modules 1a and 1b, while the side wall 28 blocks the connection gap between the two modules from one side in the width direction of the packing modules 1a and 1b.

[0081] In some embodiments, the upper surface of the top wall 22 is configured to be inclined. As Figure 3 shown, the left end of the upper surface of the top wall 22 is higher than its right end, and the water pouring down from the upper side can flow quickly from left to right and is not easily introduced into the above-mentioned water leakage prevention space 210. In addition, the upper surface of the top wall 22 can also be configured such that the height of the right end is higher than that of the left end, and the water pouring down from the upper side can flow quickly from right to left; or, the upper surface of the top wall 22 is configured to be higher in the middle and lower on both sides in the left-right direction, which can all play a role in guiding the water to the corresponding flow path to prevent the water from being poured into the water leakage prevention space 210.

[0082] As Figure 2 、 Figure 3 and Figure 6 shown, in some embodiments, a fastening portion 25 can also be provided on the lower side of the top wall 22. The fastening portion 25 is used to be snapped into the second upper end opening 12 at the top of the packing modules 1a and 1b to realize the connection between the fastener 20 and the packing modules 1a and 1b. Specifically, a part of the fastening portion 25 of the above-mentioned fastener 20 is snapped into the second upper end opening 12 of the packing module 1a, and the remaining part of the fastening portion 25 is snapped into the second upper end opening 12 of the packing module 1b.

[0083] As Figure 2 shown, in order to reduce wind resistance, a notch 24 is further provided on the top wall 22 of the fastener 20 in some embodiments. The shape of the notch 24 is adapted to the shape of the second upper end opening 12 at the edge in the width direction of the packing modules 1a and 1b.

[0084] In order to prevent water from flowing in through the gap between the lower surface of the top wall 22 and the top edge of the packing modules 1a and 1b, the fastening portion 25 of the fastener 20 is configured to be adapted to the shape of the notch 24 and extend downward for a certain length, that is, when the fastener 20 is snapped onto the connection of the packing modules 1a and 1b, the fastening portion 25 can be snapped into the inside of the second upper end opening 12 and close the above-mentioned gap.

[0085] The length of the downward extension of the above-mentioned fastening portion 25 is configured to gradually increase from the top wall 22 to the side wall 21 and form a lowest point near the top end of the side wall 21. The above structure is conducive to the water on the surface of the fastening portion 25 to gather at the lowest point and drip onto the inner surfaces of the packing sheets A and B, thereby improving the heat exchange efficiency of air and water.

[0086] A narrow lapping groove 26 is formed between two adjacent fastening parts 25, and the lapping groove 26 is fastened to the top connecting edge 13 of the packing sheet B and the packing sheet A, and it can be assisted by methods such as applying glue and filling sealing materials to avoid water leakage from the gap between the top connecting edge 13 and the lapping groove 26. As a preference, a sealing strip 40 can be fastened at the above-mentioned top connecting edge 13. The cross-section of the sealing strip 40 is generally U-shaped and has a fastening groove 41 with an opening downward for connecting with the above-mentioned top connecting edge 13. Placing the above-mentioned top connecting edge 13 into the fastening groove 41 can play a waterproof role for the connecting gap between the packing sheets at the above-mentioned top connecting edge 13.

[0087] The cross-sectional outer shape structure of the sealing strip 40 can be adapted to the shape of the lapping groove 26, so that when installing, the end of the sealing strip 40 can be embedded into the lapping groove 26. The cross-sectional outer shape structure of the sealing strip 40 can be that the top is in an arc shape or has a flat surface.

[0088] Both sides of the side wall 28 of the fastener 20 in the width direction (i.e., the stacking direction of the packing sheets) are bent towards the side where the top wall 22 is located to form a folded edge part 23, so that the side wall 28, the top wall 22 and the folded edge part 23 jointly enclose a water leakage prevention space 210 for preventing water from being poured into its interior.

[0089] As Figure 2 shown, a bent structure 27 that is concave (protruding towards the side where the top wall 22 is located) is also provided on the side wall 28. When the fastener 20 is fastened at the connection of the packing modules 1a and 1b, the above-mentioned bent structure 27 can be engaged with the groove between the packing sheets B and A on the packing modules 1a and 1b, so that it can play a role in guiding the poured water in the vertical direction and prevent water from entering the gap between the packing modules 1a and 1b. In addition, the above-mentioned bent structure 27 also improves the strength of the fastener 20.

[0090] As Figure 4 shown, the height of the side wall 21 is adapted to the height of the packing modules 1a and 1b, so that it can prevent water leakage from the gap between the packing modules 1a and 1b at approximately the full height of the packing modules 1a and 1b.

[0091] The side wall 21 can be formed as an integral component or can be formed by connecting multiple parts. As Figure 5 shown, the side wall 21 of the above-mentioned fastener 20 includes a side wall body 211 and an extension section 29 located on the lower side of the side wall body 211 and fixedly connected to the side wall body 211. The above-mentioned extension section 29 can be connected to the body of the fastener 20 by means such as bonding and welding. The above-mentioned split composition method can reduce the production difficulty and manufacturing cost.

[0092] From Figure 1As shown in the figure, on the right edge in the width direction of the packing modules 1a and 1b, the sealing connection part D protrudes away from the packing modules 1a and 1b to form a plurality of vertically extending protruding edges.

[0093] Regarding the width of the fastener 20, as a preferred embodiment, the width of the fastener 20 is adapted to be fastened at the connection of the packing modules 1a and 1b. Specifically, at least the sealing connection parts D (i.e., a kind of protruding edges of a structure) of two packing units U that are close to each other in the packing modules 1a and 1b are located within the water leakage prevention space 210 of the fastener 20. Thus, the above-mentioned sealing connection part D and the folded edge part 23 of the fastener 20 overlap each other in the width direction of the packing modules 1a and 1b to prevent water from splashing or slipping into the interior of the water leakage prevention space 210, and further, the connection gap on the right side in the width direction of the packing modules 1a and 1b is closed by the side wall 21 of the fastener 20.

[0094]

Fastener 20’

[0095] To adapt to the change in the structure at the connection of the packing modules 1a and 1b, the present utility model also provides a deformed structure fastener 20’ of the fastener 20.

[0096] As Figure 7 shown, on the left side in the width direction of the packing modules 1a and 1b, the packing piece B at the back end of the packing module 1a protrudes towards the packing module 1b to form a second protruding part C2, and the second protruding part C2 extends along the longitudinal direction; while the packing piece A at the front end of the packing module 1b protrudes towards the packing module 1a to form a first protruding part C1, and the first protruding part C1 corresponds to the second protruding part C2. When the packing module 1a and the packing module 1b are connected, the top ends of the first protruding part C1 and the second protruding part C2 abut against each other to form a protruding sealing part C.

[0097] As Figure 7 shown, on the left side of the protruding sealing part C, a plurality of vertically extending protruding edges formed by the combination of the packing piece B and the packing piece A are formed. The above-mentioned protruding edges are located within the water leakage prevention space 210.

[0098] At the top edge on the left side in the width direction of the packing modules 1a and 1b, the packing piece A and the packing piece B within the same group of packing units are connected together to form an upper edge sealing part 15.

[0099] As Figure 8 shown, to waterproof the above-mentioned left side structure of the packing modules 1a and 1b, in the fastener 20’, the fastening part 25 includes two spaced-apart convex strips 251. The two spaced-apart convex strips 251 can be placed into the first upper end opening 11 between two adjacent upper edge sealing parts 15 and engage with the protruding sealing part C to realize the connection of the fastener 20’ with the packing modules 1a and 1b.

[0100] In the fastener 20', a lapping groove 26 is also formed between two adjacent fastening parts 25. The width of the lapping groove 26 is adapted to the upper edge sealing part 15 described above so that they can be connected to each other during installation.

[0101] As Figure 9 shown, the above-mentioned fastener 20' and the fastener 20 can be used in combination. That is, the fastener 20 is located at one side connection of the filling modules 1a and 1b in the width direction, while the fastener 20' is located at the other side connection of the filling modules 1a and 1b in the width direction.

[0102] It should be noted that Figure 1 the protruding edge on the right side of the filling module 1 in the width direction forms a sealing connection part D, while Figure 7 the protruding edge on the left side of the filling module 1 in the width direction forms an edge structure formed by the combined filling sheets B and A located on the left side of the protruding sealing part C. However, it is not limited to this. The above-mentioned protruding edge can also be formed into other structures, such as an ear-like structure, etc., as long as it can form a hole for the rods 31 and 31'. The above-mentioned hole is preferably a closed through hole to facilitate the tightening assembly 30 or 30' to tighten the filling sheet without slipping off.

[0103]

Tightening Assembly 30

[0104] At the construction site, when the filling module 1 is about to be installed inside the cooling tower, in order to achieve the quick connection between the filling modules 1 and accelerate the construction progress, the inventor of the present utility model also designs a tightening assembly 30 that can quickly achieve the connection between the above-mentioned filling modules 1.

[0105] Figure 10 shows the structural diagram of the tightening assembly 30 according to an embodiment of the present utility model; Figure 11 For Figure 10 the cross-sectional view of the tightening assembly 30 shown; Figure 12 is the schematic diagram of the application of the tightening assembly 30 of the present utility model at the connection of the filling modules.

[0106] As Figures 10 to 12 shown, the tightening assembly 30 includes a rod 31. One end of the 31 protrudes radially outward to form a fixing part 36, and a first tightening surface 37 is formed between the fixing part 36 and the rod 31.

[0107] An axially extending ratchet part 32 is provided on the outer contour of the rod 31, and the ratchet part 32 is formed by a plurality of ratchets arranged in sequence along the axial direction of the rod 31.

[0108] The fastening assembly 30 further includes a fastening cap 33 mounted on the rod 30. The fastening cap 33 has a central hole 43, and a pawl portion 34 capable of cooperating with the above-mentioned ratchet portion 32 is provided in the central hole 43. When connecting the fastening cap 33 to the rod 30, the end portion 42 of the rod 30 is passed through the central hole 43 of the above-mentioned fastening cap 33, and the pawl portion 34 is engaged with the ratchet portion 32. Under the action of the pawl portion 34 and the ratchet portion 32, the fastening cap 33 can only move in the direction close to the fixing portion 36 and cannot retreat in the direction away from the fixing portion 36.

[0109] Based on this, as Figure 12 shown, a through hole portion D3 is provided on the sealing connection portion D of the packing modules 1a, 1b. The end portion 42 of the rod 30 is passed through the through hole portion D3 of the sealing connection portion D of at least two packing units U at the connection of the packing module 1a and the packing module 1b, and the fastening cap 33 is installed at the ratchet portion 32 of the rod 31, so as to tension the above-mentioned at least two packing units U together.

[0110] Furthermore, in order to achieve the detachable connection between the fastening cap 33 and the rod 31, the pawl portion 34 and the ratchet portion 32 have a separated state when the connecting portion 39 is deformed, and an engaged state when the connecting portion 39 is reset.

[0111] In some embodiments, the connection portion 39 with a necking structure is provided at the connection between the pawl portion 34 and the fastening cap 33. By providing the necking structure, the connection portion 39 is easy to deform and reset.

[0112] In some embodiments, an operating portion 35 is provided at the free end of the pawl portion 34, and the position of the operating portion 35 is adapted to deform the connecting portion 39 when a force is applied. For example, the free end of the pawl portion 34 extends away from the fastening cap 33 to form the operating portion 35. Another example is that the free end of the pawl portion 34 extends away from the fastening cap 33 and deflects radially outward of the fastening cap 33 to form the operating portion 35.

[0113] By pressing the above-mentioned operating portion 35 to deform the above-mentioned connecting portion 39, the pawl portion 34 is disengaged from the ratchet portion 32, so as to disengage the fixing cap 33 from the rod 31. Through the above structural arrangement, the fastening assembly can be disassembled and reused.

[0114] In some embodiments, a second fastening surface 38 is formed on the side of the fastening cap 33 facing the fixing portion 36. The second fastening surface 38 can be, for example, substantially a plane, so as to abut against the surface of the above-mentioned sealing connection portion D to provide a clamping force without damaging the above-mentioned sealing connection portion D.

[0115] When the packing modules 1a and 1b are assembled on-site, the above-mentioned fastening assembly 30 can achieve the quick connection of the packing module 1a and the packing module 1b, improving the work efficiency and having a firm connection.

[0116]

Fastening assembly 30’

[0117] As Figure 13 shown, the fastening assembly 30’ is a deformed structure of the fastening assembly 30. In the fastening assembly 30’, the rod 31’ is not provided with the fixing part 36, but has the ratchet part 32 and the ratchet part 32’. The rod 31’ has a first end and a second end arranged oppositely. The ratchet part 32 allows the fastening cap 33 to move unidirectionally from the first end to the second end (from left to right), but has no effect on the fastening cap 33’; while the ratchet part 32’ allows the fastening cap 33’ to move unidirectionally from the second end to the first end (from right to left), but has no effect on the fastening cap 33.

[0118] In some embodiments, as Figure 13 shown, the ratchet part 32 is located on one side (the upper side in the figure) of the outer contour of the rod 31’, while the ratchet part 32’ is located on the other side (the lower side in the figure) of the outer contour of the rod 31’.

[0119] As Figure 14 shown, a plurality of through-hole parts D3 arranged vertically are provided at the sealing connection part D on the right side in the width direction of the packing modules 1a and 1b, so as to facilitate the installation of the above-mentioned fastening assemblies 30 and 30’ to connect two adjacent packing modules 1a and 1b together.

[0120] In addition, as Figure 15 shown, two groups of through-hole parts D3 are provided at the sealing connection part D on the right side in the width direction of the packing modules 1a and 1b, so that not only the connection between the packing modules can be realized, but also the connection between the packing units U inside the packing modules 1a / 1b can be realized by alternately passing through the fastening assemblies 30 / 30’ in the up and down directions. That is, when the packing modules are assembled, the fastening assembly 30 or the fastening assembly 30’ can also be used for temporary fixation to facilitate the bonding between the packing units U.

[0121] It should be noted that the above-mentioned through-hole part D3 can also be formed at the left edge in the width direction of the packing modules 1a and 1b.

[0122]

Leakage prevention system 100

[0123] The anti-leakage system 100 is a combined system used for waterproofing the connecting gaps between adjacent filling modules in the stacking direction. It may include the fasteners 20 and / or 20' as described above, and the fastening components 30 and / or 30' located at the edges of the width directions of the filling modules 1a and 1b. The fastening components 30 and / or 30' can realize the tightening connection between the adjacent filling modules 1a and 1b, and then the fasteners 20 and / or 20' are fastened to the side edges of the width directions of the filling modules 1a and 1b to waterproof the connecting gaps between the filling modules 1a and 1b, thereby greatly improving the construction speed of assembling the filling modules into the filling layers during on-site construction, reducing the impact of the rubber on the environment and the health harm to the construction workers.

[0124] The anti-leakage system 100 may further include a sealing strip 40, which is used in combination with the fastener 20 or fastener 20' to completely seal the connection gaps between the packing modules 1a, 1b on the upper side and both sides in the width direction, and has good waterproof performance, stability and reliability, and a long service life.

[0125] By setting up the anti-leakage system 100, the connection gap between the adjacent filling modules 1a and 1b in the stacking direction can also form a flow path with the same function as the first and second flow paths in the filling modules 1a and 1b, thereby rationally utilizing the above-mentioned connection gap, increasing the heat exchange area, and reducing wind resistance.

[0126]

Cooling Tower 1000

[0127] The bottom layer of the cooling tower 1000 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 packing modules 1, and each partition 105 is arranged at the intersection of the first upper end opening 11 and the second upper end opening 12 of the packing module 1, thereby separating the first flow path R1 and the second flow path R2 connected to the first upper end opening 11 and the second upper end opening 12.

[0128] Above the spraying section 104 is the exhaust layer 106. Above the exhaust layer 106 is the air outlet 108 where the fan 107 is installed. The fan 107 sucks air upward, enabling cold air to enter the intake layer 101 from the air damper 102 at the lower layer of the cooling tower 1000. It then goes upward through each packing module 1 of the packing layer 103, respectively passing through the spraying space 105a and the air guiding space 105b. After further mixing in the exhaust layer 106, it is discharged upward through the air outlet 108.

[0129] On the other hand, the hot water to be treated sprayed from the spraying section 104 onto each packing module 1 of the packing layer 103 is cooled after passing through each packing module 1 and then falls to the bottom surface of the intake layer 101. The cooled water is recovered through the collection device for recycling use in the factory.

[0130] Operating state one:

[0131] As described above, the cooling tower 1000 is set to the winter operating state. At this time, the hot water to be treated sprayed from the spraying section 104 is restricted within the spraying 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 junction position of the first upper end opening 11 and the second upper end opening 12 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 water flow paths, while the outer flow paths R1 and R2 are adjacent to the second and first flow paths adjacent to them on both sides respectively and both form air flow paths.

[0132] The dry and hot air flowing through the air flow path and the wet and hot air flowing through the water flow path are mixed in the exhaust layer 106. Due to the small amount of wet and hot air, unsaturated hot air is formed after mixing with the dry and hot air. After being discharged to the atmosphere through the fan 107 and the air outlet 108, the unsaturated hot air is gradually cooled and the amount of water precipitated is small, greatly reducing the amount of fog formed.

[0133] In this embodiment, by switching the spraying section 104, the spraying space 105a and the air guiding space 105b can be flexibly switched, that is, stopping spraying hot water into the spraying space 105a and spraying hot water into the air guiding space 105b. In this way, the functions of the spraying space 105a and the air guiding space 105b can be swapped. On the one hand, it can ensure the normal operation of the cooling tower 1000, and on the other hand, it can effectively clean and maintain the flow path R1 or R2 of the packing module 1 communicated with the air guiding space 105b. Thus, when cleaning and maintaining the cooling tower 1000, it does not affect the normal operation of the cooling tower 1000.

[0134] Operating state two:

[0135] When in the summer working state, by adjusting the spraying part 104, hot water spraying can be carried out on the air extraction space 105b and the spraying space 105a equally, which can ensure that the heat exchange efficiency of the cooling tower 1000 is improved as much as possible without the problem of fogging in summer.

[0136] The fasteners 20, 20' of the present utility model are buckled at the connection of adjacent packing modules in the stacking direction, preventing the water sprayed from the spraying space 105a at the connection from leaking into the air extraction space through the above-mentioned connection gap. The fasteners 20, 20' of the present utility model are connected to the connection of the above-mentioned packing modules by buckling, which is quick and convenient to install, greatly improving the construction progress compared with methods such as bonding and filling sealing materials, and having good waterproof performance, firmness and durability.

[0137] The fasteners, fastening components, leak-proof system and cooling tower of the preferred embodiment of the present utility model have been described in detail above, but those skilled in the art can make various modifications, changes, combinations, etc. on this basis, and these modifications, changes, combinations all fall within the protection scope of the claims of this application.

Claims

1. A fastening assembly, comprising: a rod, at the end of which a fixing portion protrudes radially outward, and on the outer contour of the rod, there is an axially extending ratchet portion formed by a plurality of ratchets arranged in sequence along the axial direction of the rod; and a fastening cap capable of being connected to the rod, and the fastening cap has a pawl portion capable of cooperating with the ratchet portion; when the fastening cap is connected to the rod, the fastening cap is limited to move only in a one-way direction towards the fixing portion.

2. The fastening assembly according to claim 1, wherein the fastening cap has a central hole, and when the rod passes through the central hole, the pawl portion is connected to the ratchet portion.

3. The fastening assembly according to claim 1, wherein there is a connecting portion between the pawl portion and the fastening cap; the pawl portion and the ratchet portion have a separated state when the connecting portion is deformed, and an engaged state when the connecting portion is reset.

4. The fastening assembly according to claim 3, wherein there is a necked connecting portion between the pawl portion and the fastening cap.

5. The fastening assembly according to claim 3, wherein an operating portion is formed at the free end of the pawl portion, and the position of the operating portion is adapted to deform the connecting portion when a force is applied.

6. The fastening assembly according to claim 3, wherein the free end of the pawl portion extends away from the fastening cap to form an operating portion.

7. The fastening assembly according to claim 3, wherein the free end of the pawl portion extends away from the fastening cap and deflects radially outward of the fastening cap to form an operating portion.

8. A fastening assembly, comprising: a rod having a first end and a second end disposed opposite to each other, and on its outer contour, there are an axially extending first ratchet portion and a second ratchet portion; a first fastening cap, the pawl portion of the first fastening cap is connected to the first ratchet portion and is limited to move only in a one-way direction from the first end towards the second end; a second fastening cap, the pawl portion of the second fastening cap is connected to the second ratchet portion and is limited to move only in a one-way direction from the second end towards the first end.

9. The fastening assembly according to claim 8, wherein there is a necked connecting portion between the pawl portion and the fastening cap; the pawl portion and the ratchet portion have a separated state when the connecting portion is deformed, and a combined state when the connecting portion is reset.

10. The fastening assembly according to claim 9, wherein an operating portion is formed at the free end of the pawl portion, and the position of the operating portion is adapted to deform the connecting portion when a force is applied.

Images