Closed cooling tower with high efficiency water collector
Patent Information
- Application Number
- CN202522505162.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-26
AI Technical Summary
现有的从塔顶排出的湿热空气中含有可观的水分，一部分是未及下落便被气流带走的微小喷淋水滴，另一部分则是蒸发后形成的饱和水蒸气，这不仅造成了水资源的持续浪费，增加了运行成本，为保证进入塔内的空气质量，防止灰尘、柳絮、昆虫等杂物堵塞喷淋系统或附着在换热盘管表面影响换热，通常在进风口处安装有防尘网
通过螺旋导板与排风气流直接接触，强制水汽冷凝，能有效捕捉并回收即将随空气排出的水蒸气，将其转化为液态水，这不仅减少了系统的飘水损失，在干旱或缺水地区尤为重要，也降低了整体的补水量，实现了水资源的循环利用；
Smart Images
Figure CN224920990U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cooling tower technology, specifically, it relates to a closed cooling tower with a high-efficiency water collector. Background Technology
[0002] Closed-circuit cooling towers, as efficient and water-saving industrial cooling equipment, are widely used in metallurgy, chemical industry, air conditioning, power generation, and many other fields. Their core principle is to utilize sprayed water and the process fluid inside the tubes for indirect heat exchange through coils, while simultaneously using flowing air to remove the heat from the sprayed water, thus cooling the process fluid. In traditional closed-circuit cooling towers, to enhance heat exchange, large axial flow fans or blowers are typically installed on both sides or at the bottom of the tower to force ambient air into the tower for heat and mass exchange with the sprayed water and heat exchange tube bundles. Subsequently, the heated and saturated air (containing a large number of unevaporated droplets and water vapor) is discharged from the top of the tower. The existing hot and humid air discharged from the top of the tower contains a considerable amount of moisture. Part of this moisture is in the form of tiny spray droplets carried away by the airflow before they fall, and the other part is saturated water vapor formed after evaporation. This not only leads to a continuous waste of water resources and increases operating costs, but also, to ensure the quality of the air entering the tower and prevent dust, catkins, insects, and other debris from clogging the spray system or adhering to the surface of the heat exchange coils and affecting heat exchange, dust screens are usually installed at the air inlet. However, in dusty or heavily polluted environments, these dust screens are prone to rapid clogging. To address the aforementioned issues, this application proposes a closed-loop cooling tower with a high-efficiency water collector. Utility Model Content
[0003] In view of the problems in the related technologies, this utility model proposes a closed cooling tower with a high-efficiency water collector to overcome the above-mentioned technical problems existing in the existing related technologies.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A closed-loop cooling tower with a high-efficiency water collector includes a tower body with an open top and a cover plate. Fixed boxes are installed on both sides of the tower body, and multiple heat exchange tubes are fixedly installed between two fixed boxes at the same level. Blowers are installed on both the front and rear sides of the tower body, and dustproof nets are installed on the inner walls of the blowers. A water collection tank is installed at the bottom of the tower body and is connected to the tower body. A crossbeam pipe is installed at the top of the tower body, and two nozzles are rotatably installed at the bottom of the crossbeam pipe. A guide pipe is installed on one side of the water collection tank and is connected to the crossbeam pipe. A water vapor rotation collection mechanism includes an exhaust duct, which is fixedly installed on the top of the cover plate and is connected to the tower body.
[0005] Preferably, the water vapor rotation collection mechanism further includes multiple spiral guide plates, and a positioning shaft is rotatably connected inside the exhaust duct. Multiple spiral guide plates are fixedly installed on the positioning shaft, and the spiral guide plates are adapted to the inner wall of the exhaust duct.
[0006] By setting up multiple spiral guide plates, the water vapor inside the tower collides and comes into contact with the spiral guide plates when it is discharged through the exhaust duct, causing the water vapor to condense into water droplets and gather on the spiral guide plates and flow downwards.
[0007] Preferably, the spiral guide plate has multiple water guide grooves on its lower side, a drainage channel is fixedly installed at the bottom of the spiral guide plate, the drainage channel is fixedly connected to the positioning shaft, a fixing ring is fixedly installed at the bottom of the cover plate, an annular water accumulation groove is opened on the inner side of the fixing ring, and the end of the drainage channel away from the positioning shaft is located in the annular water accumulation groove.
[0008] By setting multiple water guide grooves on the spiral guide plate, the water droplets condensed on the spiral guide plate can be guided and introduced into the drainage channel. When the wind passes through the exhaust duct, the wind force acts on the spiral guide plate, thereby pushing the spiral guide plate to rotate around the positioning shaft. At the same time, the positioning shaft rotates, and the rotating positioning shaft drives the drainage channel to rotate. The water collected in the drainage channel flows into the annular water collection tank for collection under the action of centrifugal force.
[0009] Preferably, drain pipes are fixedly installed on both sides of the fixing ring, the bottom end of the drain pipe is connected to the blower, and the bottom end of the drain pipe passes through the blower and contacts the dustproof net.
[0010] Water from the annular water collection tank is drained through a drain pipe and introduced into the blower under gravity. By contacting the dust screen, the dust screen is washed, and the incoming air is cooled down, increasing the cooling effect on the heat exchange tubes and reducing the energy consumption of the blower. The washed water flows into the inner wall of the bottom of the tower and is collected in a water collection tank.
[0011] Preferably, the water outlet of the nozzle is tangentially arranged to the nozzle, and the nozzle has three water outlets, which are evenly distributed in a ring on the side of the nozzle.
[0012] By tangentially positioning the water outlet on the nozzle and the nozzle itself, the nozzle rotates under the reverse thrust of the water source when it sprays water, thereby increasing the spraying range of the nozzle.
[0013] Preferably, a water inlet and a drain outlet are installed on one side of the tower body, and the water inlet and the drain outlet are respectively connected to the upper and lower parts of multiple fixed boxes.
[0014] The water inlet and outlet allow for the injection and discharge of water into the fixed box and heat exchange tubes.
[0015] In summary, the technical effects and advantages of this utility model are as follows: By having the spiral guide plate directly contact the exhaust airflow, water vapor is forced to condense, which can effectively capture and recover the water vapor that is about to be discharged with the air and convert it into liquid water. This not only reduces the system's water drift loss, which is especially important in arid or water-scarce areas, but also reduces the overall water replenishment and realizes the recycling of water resources. Driven by exhaust kinetic energy, the spiral guide plate rotates and centrifugal force is used to drain water. The collected condensate is used to wash the dust screen. The condensate automatically flows to the dust screen of the blower and washes it continuously or intermittently, which can effectively prevent dust, catkins and other debris from clogging the mesh. The rotating nozzles spray cooling water more evenly onto the surface of the heat exchange tube bundle, avoiding the "dead zones" or uneven spraying problems that may exist with fixed nozzles. This ensures that all heat exchange tubes are fully wetted, maximizing the heat exchange area and improving overall cooling performance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the water vapor rotation collection mechanism of this utility model; Figure 4 This is a schematic diagram of the positioning shaft, drainage channel, and fixing ring structure of this utility model; Figure 5 This is a schematic diagram of the internal structure of the blower of this utility model.
[0017] In the picture: 1. Tower body; 2. Cover plate; 3. Fixing box; 4. Heat exchange tube; 5. Water vapor rotation collection mechanism; 51. Exhaust duct; 52. Fixing ring; 53. Drainage channel; 54. Positioning shaft; 55. Spiral guide plate; 56. Water guide channel; 57. Annular water collection trough; 58. Drainage pipe; 6. Blower; 7. Dustproof net; 8. Water inlet; 9. Drain outlet; 10. Water collection tank; 11. Crossbeam pipe; 12. Guide pipe; 13. Nozzle. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Reference Figure 1-5A closed cooling tower with a high-efficiency water collector includes a tower body 1, the top of the tower body 1 is open and a cover plate 2 is installed on the top of the tower body 1, fixed boxes 3 are installed on both sides of the tower body 1, multiple heat exchange tubes 4 are fixedly installed between two fixed boxes 3 at the same level, blowers 6 are installed on both the front and rear sides of the tower body 1, dustproof nets 7 are installed on the inner wall of the blowers 6, a water collection tank 10 is installed at the bottom of the tower body 1 and the water collection tank 10 is connected to the tower body 1, a crossbeam pipe 11 is installed at the top of the tower body 1, two nozzles 13 are rotatably installed at the bottom of the crossbeam pipe 11, and a conduit 12 is installed on one side of the water collection tank 10 and the conduit 12 is connected to the crossbeam pipe 11. The water vapor rotation collection mechanism 5 includes an exhaust duct 51, which is fixedly installed on the top of the cover plate 2 and is connected to the tower body 1.
[0020] Reference Figure 3 and Figure 4 The water vapor rotation collection mechanism 5 also includes multiple spiral guide plates 55. A positioning shaft 54 is rotatably connected inside the exhaust duct 51, and multiple spiral guide plates 55 are fixedly installed on the positioning shaft 54. The spiral guide plates 55 are adapted to the inner wall of the exhaust duct 51. Multiple water guide grooves 56 are opened on the lower side of the spiral guide plates 55. A drainage channel 53 is fixedly installed at the bottom of the spiral guide plates 55. The drainage channel 53 is fixedly connected to the positioning shaft 54. A fixing ring 52 is fixedly installed at the bottom of the cover plate 2. An annular water accumulation groove 57 is opened on the inner side of the fixing ring 52. The end of the drainage channel 53 away from the positioning shaft 54 is located in the annular water accumulation groove 57. Through the arrangement of multiple spiral guide plates 55, the water vapor in the tower body 1 is able to rotate freely. When water vapor is discharged through the exhaust duct 51, it collides and comes into contact with the spiral guide plate 55, causing the water vapor to condense into water droplets and gather on the spiral guide plate 55 and flow downward. Through the setting of multiple water guide grooves 56 on the spiral guide plate 55, the water droplets condensed on the spiral guide plate 55 can be guided and directed into the drainage channel 53. When the wind passes through the exhaust duct 51, the wind force acts on the spiral guide plate 55, thereby pushing the spiral guide plate 55 to rotate around the positioning shaft 54, and at the same time driving the positioning shaft 54 to rotate. The rotating positioning shaft 54 drives the drainage channel 53 to rotate, and the water collected in the drainage channel 53 flows into the annular water collection tank 57 for collection under the action of centrifugal force.
[0021] Reference Figure 2Drain pipes 58 are fixedly installed on both sides of the fixed ring 52. The bottom end of the drain pipe 58 is connected to the blower 6 and passes through the blower 6 and contacts the dust screen 7. The water in the annular water trough 57 is discharged through the drain pipe 58 and introduced into the blower 6 under the action of gravity. By contacting the dust screen 7, the dust screen 7 is washed and the incoming air is cooled down, which increases the cooling effect on the heat exchange tube 4 and reduces the energy consumption when the air is blown. The washed water flows into the inner wall of the bottom of the tower body 1 and is collected through the water collection tank 10.
[0022] Reference Figure 2 The water outlet of the nozzle 13 is tangentially arranged with the nozzle 13, and there are three water outlets of the nozzle 13, which are evenly distributed in a ring on the side of the nozzle 13. By tangentially arranging the water outlets of the nozzle 13 with the nozzle 13, the nozzle 13 is rotated under the reverse thrust of the water source when spraying water, thereby increasing the spraying range of the nozzle 13.
[0023] Reference Figure 2 A water inlet 8 and a drain outlet 9 are installed on one side of the tower body 1. The water inlet 8 and the drain outlet 9 are respectively connected to the upper and lower parts of multiple fixed boxes 3. Through the setting of the water inlet 8 and the drain outlet 9, water can be injected into and discharged from the fixed box 3 and the heat exchange tube 4.
[0024] Working principle: During operation, hot water flows into the heat exchange tube 4 through the inlet 8 and outlet 9. Cold water is sprayed into the tube through the nozzle 13 on the crossbeam tube 11, thereby cooling the hot water in the heat exchange tube 4. The cooled water flows into the water collection tank 10 under gravity. At the same time, two blowers 6 blow air in the opposite direction into the tower body 1 for cooling. The cooling air is discharged through the exhaust duct 51. The water vapor in the air collides and contacts the spiral guide plate 55, causing the water vapor to condense into water droplets and accumulate on the spiral guide plate 55, flowing downwards. The multiple water guide grooves 56 on the spiral guide plate 55 guide the water droplets condensed on the spiral guide plate 55 and guide them into the drainage channel. Inside 53, when the air force passes through the exhaust duct 51, the air force acts on the spiral guide plate 55, thereby pushing the spiral guide plate 55 to rotate around the positioning shaft 54, and at the same time driving the positioning shaft 54 to rotate. The rotating positioning shaft 54 drives the drainage channel 53 to rotate. The water collected in the drainage channel 53 flows into the annular water collection tank 57 under the action of centrifugal force for collection. The water in the annular water collection tank 57 is discharged through the drain pipe 58 and introduced into the blower 6 under the action of gravity. Through contact with the dustproof net 7, the dustproof net 7 is washed, and the incoming air force is cooled down, which increases the cooling effect on the heat exchange tube 4 and reduces the energy consumption when the air force blows.
[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A closed-loop cooling tower with a high-efficiency water collector, comprising a tower body (1), characterized in that, The top of the tower body (1) is open and a cover plate (2) is installed on the top of the tower body (1). Fixed boxes (3) are installed on both sides of the tower body (1). Multiple heat exchange tubes (4) are fixedly installed between two fixed boxes (3) at the same level. Blowers (6) are installed on both the front and rear sides of the tower body (1). Dustproof nets (7) are installed on the inner wall of the blowers (6). A water collection tank (10) is installed at the bottom of the tower body (1). The water collection tank (10) is connected to the tower body (1). A crossbeam pipe (11) is installed at the top of the tower body (1). Two nozzles (13) are rotatably installed at the bottom of the crossbeam pipe (11). A conduit (12) is installed on one side of the water collection tank (10). The conduit (12) is connected to the crossbeam pipe (11). The water vapor rotation collection mechanism (5) includes an exhaust duct (51), which is fixedly installed on the top of the cover plate (2) and is connected to the tower body (1).
2. A closed-loop cooling tower with a high-efficiency water collector according to claim 1, characterized in that, The water vapor rotation collection mechanism (5) also includes multiple spiral guide plates (55), and a positioning shaft (54) is rotatably connected inside the exhaust duct (51). Multiple spiral guide plates (55) are fixedly installed on the positioning shaft (54), and the spiral guide plates (55) are adapted to the inner wall of the exhaust duct (51).
3. A closed-loop cooling tower with a high-efficiency water collector according to claim 2, characterized in that, Multiple water guide grooves (56) are provided on the lower side of the spiral guide plate (55). A drainage channel (53) is fixedly installed at the bottom of the spiral guide plate (55). The drainage channel (53) is fixedly connected to the positioning shaft (54). A fixing ring (52) is fixedly installed at the bottom of the cover plate (2). An annular water accumulation groove (57) is provided on the inner side of the fixing ring (52). The end of the drainage channel (53) away from the positioning shaft (54) is located in the annular water accumulation groove (57).
4. A closed-loop cooling tower with a high-efficiency water collector according to claim 3, characterized in that, Both sides of the fixed ring (52) are fixedly installed with drain pipes (58). The bottom end of the drain pipe (58) is connected to the blower (6), and the bottom end of the drain pipe (58) passes through the blower (6) and is in contact with the dustproof net (7).
5. A closed-loop cooling tower with a high-efficiency water collector according to claim 1, characterized in that, The water outlet of the nozzle (13) is tangentially arranged with the nozzle (13), and the nozzle (13) has three water outlets, which are evenly distributed in a ring on the side of the nozzle (13).
6. A closed-loop cooling tower with a high-efficiency water collector according to claim 1, characterized in that, The tower body (1) is equipped with a water inlet (8) and a drain outlet (9) on one side. The water inlet (8) and the drain outlet (9) are respectively connected to the upper and lower parts of multiple fixed boxes (3).