Cooling tower water distribution system with water distribution unit

Abstract

This invention discloses a cooling tower water distribution system with water distribution units, including a main inlet pipe, at least two inlet branch pipes, at least two water distribution units, and at least two water distribution basins. A regulating valve is installed on each inlet branch pipe. Each water distribution unit includes an inlet flange, a water distributor, and an inverted support. A water distribution chamber is formed within the water distributor. The cross-sectional area of ​​the water distribution chamber gradually increases from its upper end to its lower end. The inverted support is located at the lower end of the water distribution chamber and contains an overflow chamber for receiving cooling water flowing down through the water distribution chamber. The inner bottom wall of the overflow chamber has an upwardly protruding convex wall, and a lifting plate device can be vertically installed within the overflow chamber. A water outlet device is provided between the inverted support and the side wall of the water distribution chamber. This invention can reduce inlet water pressure, effectively extending the service life of the water distribution system; moreover, it can improve the uniformity of water distribution in the water distribution basins, thus improving the cooling effect.

Description

Technical Field

[0001] This invention relates to a cooling tower water distribution system, and more specifically to a cooling tower water distribution system with a water distribution unit. Background Technology

[0002] With the continuous progress of society, people have increasingly higher requirements for cooling tower equipment, especially for its performance and service life. Traditional cooling tower water distribution systems generally include a main inlet pipe, branch inlet pipes connected to the main inlet pipe, and a distribution basin. During operation, cooling water from the main inlet pipe flows directly to the distribution basin through the branch inlet pipes. However, due to the pressure of the water flowing from the main inlet pipe and branch inlet pipes, the water impacts the distribution basin. After a certain period of use, the distribution basin is easily penetrated by the impact of the cooling water, causing damage and ultimately paralyzing the entire water distribution system, resulting in significant economic losses to the entire refrigeration system. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a cooling tower water distribution system with a water distribution unit, which can reduce the inlet water pressure to reduce the damage to the water distribution basin caused by the impact of cooling water on the water distribution basin, and can effectively extend the service life of the water distribution system.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A cooling tower water distribution system with water distribution units includes a main inlet pipe, at least two inlet branch pipes sequentially arranged along the length of the main inlet pipe and connected to the main inlet pipe, at least two water distribution units corresponding to each of the at least two inlet branch pipes, and at least two water distribution basins corresponding to each of the at least two water distribution units; each inlet branch pipe is equipped with a regulating valve; each water distribution unit includes an inlet flange connected to the corresponding inlet branch pipe, a water distributor located below the inlet flange and connected to the inlet flange, and an anti-reverse support. The water distributor has a water distribution cavity formed inside; the cross-sectional area of ​​the water distribution cavity gradually increases from the upper end to the lower end; the inverted support is located inside the lower end of the water distribution cavity, and an overflow cavity is formed inside the inverted support. The overflow cavity is used to receive the cooling water flowing down through the water distribution cavity. The inner bottom wall of the overflow cavity is provided with an upwardly protruding convex wall. A lifting plate device can also be installed vertically inside the overflow cavity; a water outlet device with the water outlet direction facing the corresponding water distribution basin is provided between the inverted support and the side wall of the water distribution cavity; the water distribution basin is provided with a number of spray nozzles.

[0006] The inverted support includes a rectangular base plate and four side plates that are respectively arranged around the perimeter of the base plate; any two adjacent side plates are connected; the base plate and the four side plates form the overflow cavity.

[0007] A water outlet device is provided between each side plate of the anti-support and the side wall of the water distribution chamber.

[0008] The convex wall is formed on the base plate.

[0009] The lifting plate device includes a lifting plate that slides and seals against the inner wall of the overflow chamber, and the lifting plate is driven to rise and fall by a lifting drive component.

[0010] The lifting drive component includes an adjusting sleeve fixed to the lifting plate, a first drive motor, and an adjusting rod that is vertically arranged and connected to the output shaft of the first drive motor; the adjusting rod is provided with an external thread, and the adjusting sleeve is fitted onto the adjusting rod and is provided with an internal thread that is threadedly connected to the external thread of the adjusting rod.

[0011] The lifting plate is provided with a mating hole for the protruding wall to pass through, and the wall of the mating hole is sealed to the protruding wall.

[0012] The upper cross-section of the water distribution cavity is circular, and the lower cross-section of the water distribution cavity is rectangular.

[0013] The water distributor is integrally formed and is fixedly connected to the inlet flange via a fixing plate.

[0014] The fixing plate is in the shape of a rotating body, and a central hole is provided in the middle of the fixing plate. The inner cavity of the water inlet flange is connected to the water distribution cavity of the water distributor through the central hole of the fixing plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention provides a cooling tower water distribution system with water distribution units. It employs a combined design of a main inlet pipe, at least two inlet branch pipes, at least two water distribution units, and at least two water distribution basins. By incorporating inlet flanges, distributors, and inverted supports into the water distribution units, three-stage water distribution is achieved, resulting in three-stage pressure and energy reduction. This significantly reduces inlet water pressure, minimizes damage to the water distribution basins caused by the impact of cooling water, and effectively extends the service life of the water distribution system. Furthermore, it improves the uniformity of water distribution in the basins, enhancing the cooling effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the water distribution unit.

[0019] Figure 3 This is a three-dimensional view of the water distribution unit;

[0020] Figure 4 This is a schematic diagram of the water distribution unit.

[0021] Figure 5 This is a schematic diagram showing the connection between the anti-support bracket and the water outlet device;

[0022] Figure 6 This is a bottom diagram showing the connection between the anti-support bracket and the water outlet device;

[0023] Figure 7 This is an exploded view of the inverted support and the water outlet device.

[0024] Among them, 10. Main water inlet pipe; 20. Branch water inlet pipe; 21. Regulating valve; 30. Water distribution basin; 31. Spray nozzle; 40. Water distribution unit; 41. Water inlet flange; 42. Fixing plate; 43. Main body; 44. Lower plate; 45. Bending plate; 46. Fixing seat; 50. Water distributor; 51. Water distribution chamber; 60. Anti-support seat; 61. Overflow chamber; 62. Protruding wall; 63. Base plate; 64. Side plate; 65. Wing; 66. Guide gap area; 67. Notch; 70. Lifting plate device; 71. Lifting plate; 72. Lifting drive component; 73. Adjusting sleeve; 74. First drive motor; 75. Adjusting rod; 76. Storage box; 77. Mating hole; 80. Water outlet device; 81. Water outlet guide plate; 82. Water outlet hole; 83. Adjusting plate device; 84. Water outlet adjusting plate; 85. Covering part; 86. Guide groove; 87. Rack; 88. Gear; 89. Power component; 94. Exhaust device; 95. Fan; 96. Third drive motor; 97. Air duct; 98. Water outlet. Detailed Implementation

[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] like Figure 1-7As shown, a cooling tower water distribution system with water distribution units includes a main inlet pipe 10, at least two inlet branch pipes 20 sequentially arranged along the length of the main inlet pipe 10 and connected to the main inlet pipe 10, at least two water distribution units 40 corresponding to each of the at least two inlet branch pipes 20, and at least two water distribution basins 30 corresponding to each of the at least two water distribution units 40; each inlet branch pipe 20 is provided with a regulating valve 21; each water distribution unit 40 includes an inlet flange 41 connected to the corresponding inlet branch pipe 20, a water distributor 50 located below the inlet flange 41 and connected to the inlet flange 41, and a counter support 60. The water distributor 50 has a water distribution cavity 51 formed inside; the cross-sectional area of ​​the water distribution cavity 51 gradually increases from the upper end to the lower end; the counter support 60 is located inside the lower end of the water distribution cavity 51, and an overflow cavity 61 is formed inside the counter support 60. The overflow cavity 61 is used to receive the cooling water flowing down through the water distribution cavity 51. The inner bottom wall of the overflow cavity 61 is provided with an upwardly protruding convex wall 62. A lifting plate device 70 can also be installed in the overflow cavity 61 in a lifting manner; a water outlet device 80 with the water outlet direction facing the corresponding water distribution basin 30 is provided between the counter support 60 and the cavity side wall of the water distribution cavity 51; the water distribution basin 30 is provided with a plurality of spray nozzles 31.

[0027] In use, the cooling water from the main inlet pipe 10 flows into the inlet flange 41 of the corresponding water distribution unit 40 through each inlet branch pipe 20, thus performing the first water distribution. The cooling water flows from the inlet flange 41 to the water distribution chamber 51 of the water distributor 50. As the cooling water flows along the water distribution chamber 51 from the upper end to the lower end, the cross-sectional area of ​​the water distribution chamber 51 gradually increases from the upper end to the lower end, causing the inlet pressure of the cooling water to gradually decrease, reducing energy consumption, and forming a second water distribution. The cooling water flowing down through the water distribution chamber 51 enters the overflow chamber 61. The cooling water is buffered by the uneven structure of the overflow chamber 61 and the convex wall 62, further reducing the inlet pressure and energy consumption. The energy consumption decreases again. The cooling water overflowing from the overflow chamber 61 flows through the water outlet device 80 to the water distribution basin 30, forming a third water distribution. Therefore, the cooling tower water distribution system with water distribution units provided by the present invention, through the combined design of the main water inlet pipe 10, at least two water inlet branch pipes 20, at least two water distribution units 40, and at least two water distribution basins 30, and through the combined design of the water distribution unit 40 with the water inlet flange 41, water distributor 50, and anti-support 60, can form three water distributions, realize three pressure reductions and energy reductions, significantly reduce the inlet water pressure, reduce the damage to the water distribution basin 30 caused by the impact of cooling water on the water distribution basin 30, and effectively extend the service life of the water distribution system.

[0028] Specifically, the bottom of the water distribution basin 30 is evenly provided with a number of spray nozzles 31, and the center line of the inverted support 60 coincides with the center axis of the water distribution chamber 51.

[0029] The inverted support 60 includes a rectangular base plate 63 and four side plates 64 that are respectively arranged around the perimeter of the base plate 63; any two adjacent side plates 64 are connected; the base plate 63 and the four side plates 64 form the overflow cavity 61. By adopting the above structure, the manufacturing and formation of the overflow cavity 61 can be facilitated.

[0030] The protruding wall 62 is formed on the base plate 63. Specifically, the protruding wall 62 extends along the width direction of the base plate 63 and is strip-shaped. The protruding wall 62 includes a top wall, a front wall, a rear wall, and a first side wall and a second side wall arranged opposite to each other. The front wall is located between the front ends of the first side wall and the front ends of the second side wall, the rear wall is located between the rear ends of the first side wall and the rear ends of the second side wall, and the top wall is located between the top ends of the first side wall and the top ends of the second side wall. By adopting the above structure, the first side wall and the second side wall of the protruding wall 62 can block and buffer the cooling water flowing down into the overflow chamber 61, and facilitate processing.

[0031] The lifting plate device 70 includes a lifting plate 71 that slides and seals against the inner wall of the overflow chamber 61. The lifting plate 71 is driven to rise and fall by a lifting drive component 72. Because the lifting plate 71 seals against the inner wall of the overflow chamber 61, a sealing effect is ensured, preventing cooling water from flowing downwards through the gap between the lifting plate 71 and the inner wall of the overflow chamber 61. Specifically, the lifting plate 71 is provided with a mating hole 77 for the protruding wall 62 to pass through, and the wall of the mating hole 77 slides and seals against the protruding wall 62 to ensure a sealing effect between the wall of the mating hole 77 and the protruding wall 62, preventing cooling water from flowing downwards through the gap between the wall of the mating hole 77 and the protruding wall 62. Based on the base plate 63 and side plate 64 of the anti-support 60, and combined with the lifting plate 71 and the lifting drive component 72, the lifting plate 71 can be driven to rise and fall by the lifting drive component 72, so as to adjust the overflow of cooling water in the overflow chamber 61, thereby adjusting the third water distribution volume.

[0032] Specifically, the overflow cavity 61 is rectangular, and the outer contour shape of the lifting plate 71 matches the shape of the overflow cavity 61.

[0033] Preferably, the lifting drive component 72 includes an adjusting sleeve 73 fixed on the lifting plate 71, a first drive motor 74, and an adjusting rod 75 vertically arranged and connected to the output shaft of the first drive motor 74. The adjusting rod 75 is provided with an external thread, and the adjusting sleeve 73 is fitted onto the adjusting rod 75 and is provided with an internal thread that is threadedly connected to the external thread of the adjusting rod 75. In use, the first drive motor 74 drives the adjusting rod 75 to rotate forward, which can drive the adjusting sleeve 73 and the lifting plate 71 to descend. As the water level in the overflow chamber 61 gradually rises, the first drive motor 74 drives the adjusting rod 75 to rotate in the opposite direction, which can drive the adjusting sleeve 73 and the lifting plate 71 to rise. The rising of the lifting plate 71 can gradually push the cooling water upward, causing the cooling water in the overflow chamber 61 to overflow outward. This can be coordinated with the water distribution to the water distribution basin 30, thereby regulating the overflow of cooling water in the overflow chamber 61 in the above manner.

[0034] Specifically, a storage box 76 is fixed below the reverse support 60. The body of the first drive motor 74 and the adjusting rod 75 are both located inside the storage box 76. By adopting the above structure, the storage box 76 can protect and waterproof the first drive motor 74. The reverse support 60 is provided with a mounting hole, and the adjusting sleeve 73 passes through the mounting hole. A sealing ring for sealing and slidingly engaging with the adjusting sleeve 73 is fixed in the mounting hole. By adopting the above structure, the sealing performance between the adjusting sleeve 73 and the reverse support 60 can be ensured.

[0035] The upper cross-section of the water distribution cavity 51 is circular, and the lower cross-section is rectangular, to facilitate the formation of a gradually increasing cross-sectional area from the upper to the lower end of the water distribution cavity 51. In this embodiment, the water distributor 50 includes a water distribution shell integrally injection molded from PVC material, and the water distribution cavity 51 is formed on the water distribution shell. The upper end of the water distribution shell is circular, and the lower end is rectangular. By adopting the above structure, the manufacture of the water distributor 50 can be facilitated.

[0036] The water outlet device 80 includes a water outlet guide plate 81 disposed between the anti-support 60 and the cavity sidewall of the water distribution chamber 51. A plurality of water outlet holes 82 are arranged at equal intervals along the length of the water outlet guide plate 81. An adjusting plate device 83 is installed below the water outlet guide plate 81. The adjusting plate device 83 includes a water outlet adjusting plate 84 and a transverse moving assembly. The water outlet adjusting plate 84 is provided with a plurality of water outlet grooves 98 corresponding to and communicating with the corresponding water outlet holes 82, and a plurality of covering parts 85 corresponding to and covering the corresponding water outlet holes 82. The plurality of water outlet grooves 98 and covering parts 85 are arranged alternately along the length of the water outlet guide plate 81. The transverse moving assembly of the water outlet device 80 is used to drive the water outlet adjusting plate 84 of the water outlet device 80 to move along the length of the water outlet guide plate 81 of the water outlet device 80. In use, the horizontal movement component drives the water outlet regulating plate 84 to move forward, causing each water outlet 98 to move toward the corresponding water outlet 82. This increases the area of ​​the water outlet 98 facing the corresponding water outlet 82 and decreases the area of ​​the covering part 85 facing the corresponding water outlet 82, thereby increasing the amount of water flowing to the water distribution basin 30. Conversely, the horizontal movement component drives the water outlet regulating plate 84 to move in the opposite direction, causing the area of ​​the water outlet 98 facing the corresponding water outlet 82 to decrease and the area of ​​the covering part 85 facing the corresponding water outlet 82 to increase, thereby decreasing the amount of water flowing to the water distribution basin 30.

[0037] Specifically, the water outlet guide plate 81 is disposed between the side plate 64 of the inverted support 60 and the cavity side wall at the lower end of the water distribution cavity 51. The water outlet guide plate 81 has a downward-facing recessed guide groove 86 that communicates with the water outlet hole 82. The top of the side plate 64 of the inverted support 60 is provided with a notch 67 for the cooling water of the overflow cavity 61 to overflow towards the guide groove 86. In use, the water at the top of the overflow cavity 61 can overflow towards the guide groove 86 through the notch 67, and then flow towards the water outlet hole 82 through the guide groove 86, and then flow out towards the water distribution basin 30 through the water outlet groove 98. Specifically, the inner bottom wall of the notch 67 is flush with the inner bottom wall of the guide groove 86.

[0038] The water outlet regulating plate 84 of the water outlet device 80 is movably installed below the water outlet guide plate 81 of the water outlet device 80. The lateral movement assembly includes a rack 87 disposed on the water outlet regulating plate 84, a gear 88 meshing with the rack 87, and a power component 89 for driving the gear 88 to rotate. In use, the power component 89 drives the gear 88 to rotate forward, which in turn drives the rack 87 and the water outlet regulating plate 84 to move forward, causing each water outlet trough 98 to move toward the corresponding water outlet hole 82, thereby increasing the amount of water flowing to the water distribution basin 30. Conversely, the power component 89 drives the gear 88 to rotate in the opposite direction, which in turn drives the rack 87 and the water outlet regulating plate 84 to move in the opposite direction, causing each water outlet trough 98 to move away from the corresponding water outlet hole 82, thereby reducing the amount of water flowing to the water distribution basin 30.

[0039] Specifically, the power component 89 is a second drive motor. A receiving box is provided below the water outlet guide plate 81. The body of the second drive motor is fixed inside the receiving box, and the output shaft of the second drive motor extends out of the receiving box. The gear 88 is fixed on the part of the second drive motor whose output shaft extends out of the receiving box.

[0040] As a further preferred embodiment of the present invention, an installation plate is provided below the water outlet guide plate 81, and a sliding guide groove is formed between the water outlet guide plate 81 and the installation plate. One side of the water outlet regulating plate 84 is slidably embedded in the sliding guide groove so that the water outlet regulating plate 84 slides along the sliding guide groove under the drive of the transverse component, and the sliding guide groove can guide the movement of the water outlet regulating plate 84.

[0041] In a preferred embodiment of the present invention, a water outlet device 80 is provided between each side plate 64 of the inverted support 60 and the cavity side wall of the water distribution chamber 51, so that water overflowing from the recess 67 of each side plate 64 of the inverted support 60 can flow to the water distribution basin 30 through each water outlet device 80 and be sprayed out through the spray nozzle 31 of the water distribution basin 30. Since a water outlet device 80 is provided between each side plate 64 of the inverted support 60 and the cavity side wall of the water distribution chamber 51, the cooling water flow rate of each water outlet device 80 to each area of ​​the water distribution basin 30 can be made more uniform through the synchronous adjustment of each water outlet device 80, so as to improve the water distribution uniformity of the water distribution basin 30, improve the cooling effect, and play a protective role for the entire system.

[0042] Preferably, a wing 65 is provided between the top ends of any two adjacent side plates 64 of the anti-support 60, and a guide gap area 66 is formed between the wing 65 at both ends of each side plate 64 to guide cooling water to the notch 67.

[0043] The water distributor 50 is fixedly connected to the inlet flange 41 via a fixing plate 42. Specifically, the fixing plate 42 is in the shape of a rotating body, and a central hole is provided in the middle of the fixing plate 42. The inner cavity of the inlet flange 41 communicates with the water distribution chamber 51 of the water distributor 50 through the central hole of the fixing plate 42. The fixing plate 42 includes a main body 43 in the shape of a circle, a lower plate 44 provided on the circumferential edge of the main body 43 and extending downward, and a bent plate 45 provided on the circumferential edge of the lower end of the lower plate 44 and extending outward. The main body 43 of the fixing plate 42 is fixed between the inlet flange 41 and the water distributor 50, and the central hole is provided on the main body 43. A fixing seat 46 is provided at the top of the water distribution basin 30, and an embedding groove is provided on the fixing seat 46. The fixing plate 42 is fixed on the fixing seat 46, and the bent plate 45 is embedded in the embedding groove. By adopting the above structure, the installation and positioning of the fixing plate 42 and the fixing base 46 can be facilitated.

[0044] The inlet flange 41 is integrally injection molded from PVC material and galvanized, which saves a significant amount of production time and ensures quality. The upper end of the inlet flange 41 is connected to the corresponding inlet branch pipe 20, and the lower end of the inlet flange 41 is connected to the fixing plate 42. The fixing plate 42 is made of heavy-duty galvanized steel sheet, which increases the strength of the fixing plate 42 and serves to fix the water distributor 50 and the inlet flange 41 together, bearing the weight of the inlet branch pipe 20 and the inlet pressure.

[0045] In this embodiment, the cooling tower's exhaust device 94 is equipped with water inlet branch pipes 20, corresponding water distribution units 40, and corresponding water distribution basins 30 on both sides. During operation, the exhaust device 94 can expel the hot and humid air from the cooling tower after heat exchange with the cooling water. The exhaust device 94 includes a duct 97, a fan 95 rotatably mounted within the duct 97, and a third drive motor 96 for driving the fan 95. When the third drive motor 96 operates, it drives the fan 95 to rotate, thereby expelling the hot and humid air from the tower.

[0046] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A cooling tower water distribution system with a water distribution unit, characterized in that: The system includes a main inlet pipe, at least two inlet branch pipes sequentially arranged along the length of the main inlet pipe and connected to the main inlet pipe, at least two water distribution units corresponding to each of the at least two inlet branch pipes, and at least two water distribution basins corresponding to each of the at least two water distribution units; each inlet branch pipe is equipped with a regulating valve; each water distribution unit includes an inlet flange connected to the corresponding inlet branch pipe, a water distributor located below the inlet flange and connected to the inlet flange, and a counter support; the water distributor has an internal shape... The system comprises a water distribution chamber; the cross-sectional area of ​​the water distribution chamber gradually increases from its upper end to its lower end; the inverted support is located inside the lower end of the water distribution chamber, and an overflow chamber is formed within the inverted support. The overflow chamber is used to receive cooling water flowing down through the water distribution chamber, and the inner bottom wall of the overflow chamber is provided with an upwardly protruding convex wall. A lifting plate device can also be installed vertically within the overflow chamber; a water outlet device is provided between the inverted support and the side wall of the water distribution chamber, with the water outlet direction facing the corresponding water distribution basin; the water distribution basin is provided with several spray nozzles. The lifting plate device includes a lifting plate that slides and seals against the inner wall of the overflow chamber. The lifting plate is driven to rise and fall by a lifting drive component. The lifting drive component includes an adjusting sleeve fixed on the lifting plate, a first drive motor, and an adjusting rod that is vertically arranged and connected to the output shaft of the first drive motor. The adjusting rod is provided with an external thread, and the adjusting sleeve is fitted on the adjusting rod and is provided with an internal thread that is threadedly connected to the external thread of the adjusting rod.

2. The cooling tower distribution system with a water distribution unit of claim 1, wherein: The inverted support includes a rectangular base plate and four side plates that are respectively arranged around the perimeter of the base plate; any two adjacent side plates are connected; the base plate and the four side plates form the overflow cavity.

3. The cooling tower distribution system with a water distribution unit of claim 2, wherein: A water outlet device is provided between each side plate of the anti-support and the side wall of the water distribution chamber.

4. The cooling tower distribution system with a water distribution unit of claim 2, wherein: The convex wall is formed on the base plate.

5. The cooling tower distribution system with a water distribution unit of claim 1, wherein: The lifting plate is provided with a mating hole for the protruding wall to pass through, and the wall of the mating hole is sealed to the protruding wall.

6. The cooling tower distribution system with a water distribution unit of claim 1, wherein: The upper cross-section of the water distribution cavity is circular, and the lower cross-section of the water distribution cavity is rectangular.

7. The cooling tower distribution system with a water distribution unit of claim 1, wherein: The water distributor is integrally formed and is fixedly connected to the inlet flange via a fixing plate.

8. The cooling tower distribution system with a water distribution unit of claim 7, wherein: The fixing plate is in the shape of a rotating body, and a central hole is provided in the middle of the fixing plate. The inner cavity of the water inlet flange is connected to the water distribution cavity of the water distributor through the central hole of the fixing plate.

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