Closed cooling tower with uniform distribution of spray water

Abstract

The application discloses a closed cooling tower with evenly-distributed spray water, which comprises a shell, an air outlet located at the top end of the shell, and an air inlet located at the side end of the shell, and further comprises a condenser installed in the shell, heat exchange coils coiled on the condenser, and cooling water running in the heat exchange coils; a spray unit installed in the shell, which is used for uniformly spraying heat exchange water on the heat exchange coils, collecting the heat exchange water in a water collecting pool at the bottom of the shell, and pumping the heat exchange water into the spray unit again, wherein the spray unit comprises an inner spray assembly and an outer spray assembly, the outer spray assembly is rotatably installed on the inner spray assembly, the outer spray assembly sprays the heat exchange water downward, and the inner spray assembly sprays the heat exchange water in a rotary mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the closed cooling tower technical field, specifically, it relates to a kind of closed cooling tower of spray water uniform distribution. BACKGROUND

[0002] Cooling tower is divided into open cooling tower and closed cooling tower.Open cooling tower mainly has the following shortcomings: one is water consumption, in addition to the effective utilization of a part of evaporation vaporization absorption circulating water heat effective loss, there is a part of wind blow loss invalid loss;Second, high power consumption, from the heat exchanger out of cooling water still has 20 more meters of residual pressure, into cooling tower and become normal pressure, this part of lift energy waste;Three is high pollution, since water evaporates continuously, concentration of solid in water, calcium and magnesium ions etc. Gradually increase, and breed bacteria, in order to reduce water in the scale, usually to add medicine and pollution measures;Four is the short service life of heat exchange equipment, since water is directly contacted with atmosphere, water quality is easy to deteriorate, hardness increases, leading to heat exchange equipment scale, corrosion, reduce heat exchange effect, shorten the service life of equipment.Ordinary closed cooling tower, solve the above shortcomings of open cooling tower, but if closed cooling tower in the spray water is not evenly sprayed, cause heat exchange efficiency is not high. SUMMARY

[0003] To achieve the above object, the present application discloses a kind of closed cooling tower of spray water uniform distribution, including shell, air outlet is located at the top of shell, air inlet is located at the side end of shell, still include:

[0004] Condenser, the condenser is installed in shell, heat exchange coil is coiled on condenser, cooling water runs in heat exchange coil;

[0005] Spray unit, the spray unit is installed in shell, the spray unit is used to spray heat exchange water evenly on heat exchange coil, heat exchange water is collected into the water collecting pool located in the bottom of shell, and is pumped into spray unit again, the spray unit includes: inner spray assembly and outer spray assembly, the outer spray assembly is rotatably installed on inner spray assembly, the outer spray assembly sprays heat exchange water downward, the inner spray assembly rotates and sprays heat exchange water.

[0006] Preferably, still include:

[0007] Cooling water inlet, cooling water outlet, the cooling water inlet and cooling water outlet are installed at the side end of shell, and are communicated with heat exchange coil.

[0008] Preferably, the inner spray assembly includes:

[0009] Inner fixed seat, the inner fixed seat is installed in shell, the outer spray assembly is rotatably installed at the side end of inner fixed seat;

[0010] A water storage chamber is arranged in the inner fixing base, and a water delivery channel is arranged at the side end of the inner fixing base and communicated between the water storage chamber and the outer spraying assembly;

[0011] A plurality of electric spray heads are uniformly distributed at the bottom end of the inner fixing base and communicated with the water storage chamber.

[0012] Preferably, the outer spraying assembly comprises:

[0013] An outer rotating ring seat is arranged at the side end of the inner fixing base;

[0014] A rotating chamber is arranged at the inner ring end of the outer rotating ring seat and close to the top end;

[0015] A fixed gear ring is fixedly arranged at the side end of the inner fixing base;

[0016] A rotating motor is installed in the rotating chamber, and a rotating gear is installed at the output end of the rotating motor and engaged with the fixed gear ring.

[0017] Preferably, the outer spraying assembly further comprises:

[0018] A water inlet chamber is arranged at the inner ring end of the outer rotating ring seat and below the rotating chamber, and the water delivery channel is communicated in the water inlet chamber;

[0019] A turnover assembly is installed in the water inlet chamber;

[0020] A plurality of turnover plates are connected to the bottom end of the outer rotating ring seat through a support, one end of a top rod is arranged on the turnover plate, and the other end of the top rod extends into the water inlet chamber and is connected with the turnover assembly;

[0021] An electric spray head is installed on the turnover plate, and the electric spray head is communicated with the water inlet chamber through a hose.

[0022] Preferably, the turnover assembly comprises:

[0023] An annular limiting groove is arranged at the side end of the inner fixing base;

[0024] A sliding sleeve is arranged at the side end of the inner fixing base and connected to the bottom end of the annular limiting groove;

[0025] A plurality of elastic telescopic rods are distributed at the bottom end of the sliding sleeve and the inner bottom of the water inlet chamber and centered on the inner fixing base;

[0026] A rotating sleeve ring is installed in the annular limiting groove, a waist-shaped hole is arranged on the rotating sleeve ring, and the other end of the top rod is arranged in the waist-shaped hole;

[0027] The wedge block one and the wedge block two, a plurality of the wedge block one is circumferentially mounted on the sliding sleeve, the wedge block two is matched with the wedge block one and is mounted on the inner wall of the water inlet chamber.

[0028] Preferably, the outer spray assembly further comprises:

[0029] The expansion plate assembly is arranged in equal number with the turnover plate and is mounted at the bottom end of the outer rotating ring seat. When the expansion plate assembly is opened and closed, the spraying area of the heat exchange water sprayed by the electric spray head two is increased.

[0030] The action assembly is mounted at the position close to the bottom end of the side end of the outer rotating ring seat and is connected with the expansion plate assembly.

[0031] The action block is circumferentially mounted on the inner wall of the shell. When the action assembly is slidably connected to the action block, the expansion plate assembly is driven to open and close.

[0032] Preferably, the action assembly comprises:

[0033] The action chamber is arranged in the outer rotating ring seat.

[0034] The rotating screw sleeve extends into the action chamber from the side end of the outer rotating ring seat.

[0035] The action rod is provided with external threads matched with the internal threads of the rotating screw sleeve on the surface. The rotating screw sleeve is sleeved on the action rod. One end of the action rod is slidably connected with a square rod mounted on the inner wall of the action chamber. A reset spring is sleeved on the square rod and abuts between the action rod and the inner wall of the action chamber. The other end of the action rod is matched with the action block.

[0036] The two rotating shafts two are symmetrically mounted in the action chamber with the rotating screw sleeve as the center.

[0037] The pulley one is mounted on the rotating screw sleeve, and the pulley two is mounted on the rotating shaft two. The transmission belt is sleeved on the pulley one and the pulley two.

[0038] The gear one is mounted on the rotating shaft two.

[0039] The U-shaped rack is slidably mounted in the action chamber. The U-shaped rack is engaged with the gear one, and the U-shaped rack is connected with the expansion plate assembly.

[0040] Preferably, the expansion plate assembly comprises:

[0041] The vertical shaft is rotatably mounted at the bottom end of the outer rotating ring seat.

[0042] The expansion plate is hingelike rotatably mounted on the vertical shaft.

[0043] A vertical rod is slidably connected to the top end of the expansion plate, and the other end of the vertical rod extends into the action chamber and is connected to the U-shaped rack.

[0044] Preferably, a water collector is mounted on the inner top of the shell, a fan is mounted on the air outlet, a louver is mounted on the air inlet, and a water supplement inlet connected to a water collecting pool is mounted on the side end of the shell. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor based on these drawings.

[0046] Figure 1 It is a structural schematic diagram of the present application;

[0047] Figure 2 It is a structural schematic diagram of the spray unit of the present application;

[0048] Figure 3 It is Figure 2 It is an enlarged view of reference sign A;

[0049] Figure 4 It is a top view of the water inlet chamber of the present application;

[0050] Figure 5 It is a structural schematic diagram of the action chamber of the present application;

[0051] Figure 6 It is a schematic diagram of the connection of the action rod in the rotating sleeve of the present application.

[0052] In the figure: 11. air outlet; 12. air inlet; 13. heat exchange coil; 14. spray unit; 15. water collecting pool; 16. cooling water inlet; 17. cooling water outlet; 18. condenser; 19. rotating gear; 10. shell; 21. inner spray assembly; 22. outer spray assembly; 23. inner fixed seat; 24. water storage chamber; 25. water feeding channel; 26. electric spray head one; 27. outer rotating ring seat; 28. rotating chamber; 29. fixed gear ring; 20. rotating motor; 31. water inlet chamber; 32. turnover plate; 33. electric spray head two; 34. top rod; 35. annular limiting groove; 36. sliding sleeve; 37. elastic telescopic rod; 38. rotating sleeve ring; 39. wedge block one; 30. wedge block two; 41. reset spring; 42. action chamber; 43. rotating sleeve; 44. action rod; 45. gear one; 46. U-shaped rack; 47. vertical shaft; 48. expansion plate; 49. vertical rod. DETAILED DESCRIPTION

[0053] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0054] Embodiments

[0055] The present application will be further described below in conjunction with the drawings.

[0056] As Figures 1 to 6 shown, the present embodiment provides a closed cooling tower with uniform distribution of spray water, which comprises a shell 10, an air outlet 11 located at the top end of the shell 10, an air inlet 12 located at the side end of the shell 10, and further comprises:

[0057] a condenser 18 installed in the shell 10, a heat exchange coil 13 coiled on the condenser 18, and cooling water running in the heat exchange coil 13;

[0058] a spray unit 14 installed in the shell 10, the spray unit 14 being used to uniformly spray heat exchange water on the heat exchange coil 13, the heat exchange water being collected in a water collecting pool 15 located at the bottom of the shell 10 and being pumped into the spray unit 14 again, the spray unit 14 comprising an inner spray assembly 21 and an outer spray assembly 22, the outer spray assembly 22 being rotatably installed on the inner spray assembly 21, the outer spray assembly 22 spraying heat exchange water downward, and the inner spray assembly 21 rotatingly spraying heat exchange water.

[0059] The working principle and beneficial effects of the above technical solution are as follows:

[0060] The present application discloses a closed cooling tower with uniform distribution of spray water, cooling water running in a heat exchange coil 13 coiled on a condenser 18, a spray unit 14 working to uniformly spray heat exchange water on the heat exchange coil 13, a water collecting pool 15 located at the bottom of the shell 10 collecting heat exchange water and pumping the heat exchange water into the spray unit 14 again, specifically, the spray unit 14 comprising an inner spray assembly 21 and an outer spray assembly 22, the outer spray assembly 22 spraying heat exchange water downward, and the inner spray assembly 21 rotatingly spraying heat exchange water, thereby improving the spray area. The present application provides a closed cooling tower with uniform distribution of spray water, the outer spray assembly 22 spraying heat exchange water downward, and the inner spray assembly 21 rotatingly spraying heat exchange water, thereby improving the spray area, and the spray water used for heat exchange is uniformly distributed.

[0061] In one embodiment, it further comprises:

[0062] Cooling water inlet 16, cooling water outlet 17, the cooling water inlet 16 and cooling water outlet 17 are installed on the side end of the shell 10 and communicate with the heat exchange coil 13.

[0063] The working principle of the above technical solution is:

[0064] The circulating water is sent into the heat exchange coil 13 in the shell 10 from the cooling water inlet 16, and is sent out from the cooling water outlet 17 after heat exchange.

[0065] In one embodiment, the inner spray assembly 21 comprises:

[0066] The inner fixed seat 23 is installed in the shell 10, and the outer spray assembly 22 is rotatably installed on the side end of the inner fixed seat 23.

[0067] The water storage chamber 24 is located in the inner fixed seat 23, and the side end of the inner fixed seat 23 is provided with a water supply channel 25 communicating between the water storage chamber 24 and the outer spray assembly 22.

[0068] The electric spray head one 26 is uniformly distributed on the bottom end of the inner fixed seat 23 and communicates with the water storage chamber 24.

[0069] The working principle and beneficial effects of the above technical solution are:

[0070] The heat exchange water is sent into the water storage chamber 24 in the inner fixed seat 23, and the electric spray head one 26 works, so that the heat exchange water in the water storage chamber 24 is sprayed out from the bottom end of the inner fixed seat 23, and the water in the water storage chamber 24 is sent into the outer spray assembly 22 from the water supply channel 25, so as to supply water to the outer spray assembly 22, and the outer spray assembly 22 rotates on the inner fixed seat 23, so as to realize the rotary spray of the heat exchange water, and the spray water can be uniformly distributed.

[0071] In one embodiment, the outer spray assembly 22 comprises:

[0072] The outer rotating ring seat 27 is sleeved on the side end of the inner fixed seat 23.

[0073] The rotating chamber 28 is annularly arranged at the inner ring end close to the top end position of the outer rotating ring seat 27.

[0074] The fixed gear ring 29 is fixedly sleeved on the side end of the inner fixed seat 23.

[0075] The rotating motor 20 is installed in the rotating chamber 28, and the rotating gear 19 is installed on the output end of the rotating motor 20 and engages with the fixed gear ring 29.

[0076] The working principle and beneficial effects of the above technical solution are:

[0077] The rotary motor 20 installed in the rotary chamber 28 works to drive the rotary gear 19 installed at the output end of the rotary motor 20 to rotate, and the rotary gear 19 drives the outer rotary ring seat 27 to rotate on the inner fixed seat 23 through cooperation with the fixed gear ring 29, thereby realizing the rotary spray heat exchange water.

[0078] In one embodiment, the outer spray assembly 22 further comprises:

[0079] The water inlet chamber 31 is annularly arranged at the inner ring end of the outer rotary ring seat 27 and is located below the rotary chamber 28, and the water supply channel 25 is communicated with the water inlet chamber 31;

[0080] The turnover assembly is installed in the water inlet chamber 31;

[0081] The turnover plate 32 is circumferentially connected to the bottom end of the outer rotary ring seat 27 through a support, one end of the jacking rod 34 is abutted on the turnover plate 32, the other end of the jacking rod 34 extends into the water inlet chamber 31 and is connected with the turnover assembly, specifically, the middle section of the turnover plate 32 is rotatably installed at the bottom end of the outer rotary ring seat 27 through a rotating shaft, and a reset coil spring is sleeved on the rotating shaft;

[0082] The electric spray head two 33 is installed on the turnover plate 32, and the electric spray head two 33 is communicated with the water inlet chamber 31 through a hose.

[0083] The working principle and beneficial effects of the above technical scheme are:

[0084] The water in the water storage chamber 24 is sent into the water inlet chamber 31 from the water sending channel 25, and the electric spray head two 33 works, so that the heat exchange water in the water storage chamber 24 is sprayed out from the bottom end of the outer rotating ring seat 27, the rotating motor 20 installed in the rotating chamber 28 works, so as to drive the rotating gear 19 installed at the output end of the rotating motor 20 to rotate, and the outer rotating ring seat 27 rotates on the inner fixed seat 23 through the cooperation of the rotating inner gear 19 and the fixed gear ring 29, so as to realize the rotary spraying of the heat exchange water of the electric spray head two 33 located at the bottom end of the outer rotating ring seat 27. During the rotary spraying of the heat exchange water of the electric spray head two 33, the turnover assembly in the water inlet chamber 31 works in stages, so as to drive the top rod 34 to lift in stages, when the top rod 34 descends, the turnover plate 32 is pressed, so as to drive the turnover plate 32 to turn over on the support towards the inner fixed seat 23, and when the top rod 34 is lifted, the pressing on the turnover plate 32 is released, and under the action of the reset coil spring, the turnover plate 32 resets on the support with the rotating shaft one as the center, that is, when the outer rotating ring seat 27 drives the electric spray head two 33 located at the bottom end thereof to rotate and spray the heat exchange water, the turnover assembly works in stages, and the turnover plate 32 is turned over through the lifting of the top rod 34, so that the electric spray head two 33 installed on the turnover plate 32 is turned over, so that not only the rotary spraying of the heat exchange water of the electric spray head two 33 is realized, but also the turning over of the electric spray head two 33 improves the spraying area.

[0085] In one embodiment, the turnover assembly comprises:

[0086] The annular limiting groove 35 is sleeved on the side end of the inner fixed seat 23.

[0087] The sliding sleeve 36 is sleeved on the side end of the inner fixed seat 23 and connected to the bottom end of the annular limiting groove 35.

[0088] The plurality of elastic telescopic rods 37 are distributed circumferentially between the bottom end of the sliding sleeve 36 and the bottom of the water inlet chamber 31 with the inner fixed seat 23 as the center.

[0089] The rotating sleeve ring 38 is installed in the annular limiting groove 35, and the waist-shaped hole is formed in the rotating sleeve ring 38, and the other end of the top rod 34 is arranged in the waist-shaped hole.

[0090] The plurality of wedge-shaped blocks one 39 are circumferentially installed on the sliding sleeve 36, and the wedge-shaped block two 30 is matched with the wedge-shaped block one 39 and installed on the inner wall of the water inlet chamber 31.

[0091] The working principle and beneficial effects of the above technical solution are as follows:

[0092] The outer rotating ring seat 27 rotates on the inner fixed seat 23. Since the inner fixed seat 23 is fixed, the annular limiting groove 35 sleeved on the inner fixed seat 23 and the sliding sleeve 36 connected with the annular limiting groove 35 only move up and down. In the process of rotating the outer rotating ring seat 27, the top rod 34 drives the rotating sleeve 38 connected with the top rod 34 to rotate in the annular limiting groove 35. The top rod 34 avoids the wedge-shaped block 1 39, so as not to cause motion interference. When the outer rotating ring seat 27 drives the wedge-shaped block 2 30 installed on the inner wall of the water inlet chamber 31 to rotate, the wedge-shaped block 2 30 presses the wedge-shaped block 1 39 in stages. When the wedge-shaped block 2 30 presses the wedge-shaped block 1 39, the sliding sleeve 36 connected with the wedge-shaped block 1 39 descends, the elastic telescopic rod 37 contracts, the annular limiting groove 35 connected with the sliding sleeve 36 descends, the annular limiting groove 35 drives the top rod 34 to descend through the rotating sleeve 38, and the top rod 34 descends to press the turnover plate 32, thereby driving the turnover plate 32 to turn over on the support towards the inner fixed seat 23, so as to realize the turnover of the electric nozzle 2 33 installed on the turnover plate 32, and improve the spraying area.

[0093] In one example, the outer spraying assembly 22 further comprises:

[0094] The expansion plate assembly is arranged in an equal number to the turnover plate 32 and is installed at the bottom end of the outer rotating ring seat 27. When the expansion plate assembly moves up and down, the spraying area of the heat exchange water sprayed by the electric nozzle 2 33 is improved.

[0095] The action assembly is installed at the side end close to the bottom end of the outer rotating ring seat 27, and the action assembly is connected with the expansion plate assembly.

[0096] The plurality of action blocks are circumferentially installed on the inner wall of the shell 10. When the action assembly is slidably connected to the action blocks, the expansion plate assembly is driven to move up and down.

[0097] The action assembly comprises:

[0098] The action chamber 42 is arranged in the outer rotating ring seat 27.

[0099] The rotating screw sleeve 43 extends into the action chamber 42 from the side end of the outer rotating ring seat 27.

[0100] The action rod 44 has an outer thread matched with an inner thread of the rotating screw sleeve 43 on the surface. The outer thread and the inner thread are not locked. The rotating screw sleeve 43 is sleeved on the action rod 44. One end of the action rod 44 is slidably connected to the square rod installed on the inner wall of the action chamber 42. The reset spring 41 is sleeved on the square rod and abuts between the action rod 44 and the inner wall of the action chamber 42. The other end of the action rod 44 is matched with the action block.

[0101] The second rotating shaft is symmetrically installed in the action chamber 42 with the rotating sleeve 43 as the center;

[0102] The first pulley is installed on the rotating sleeve 43, the second pulley is installed on the second rotating shaft, and the transmission belt is sleeved on the first pulley and the second pulley;

[0103] The first gear is installed on the second rotating shaft;

[0104] The U-shaped rack is slidably installed in the action chamber 42, the U-shaped rack is engaged with the first gear, and the U-shaped rack is connected with the expansion plate assembly.

[0105] The expansion plate assembly comprises:

[0106] The vertical shaft is rotatably installed at the bottom end of the outer rotating ring seat 27;

[0107] The expansion plate is hingedly rotatably installed on the vertical shaft;

[0108] The vertical rod is slidably connected to the top end of the expansion plate, and the other end of the vertical rod extends into the action chamber 42 and is connected with the U-shaped rack.

[0109] The working principle and beneficial effects of the above technical scheme are:

[0110] The outer rotating ring seat 27 rotates on the inner fixing seat 23, thereby driving the action rod 44 located at the side end of the outer rotating ring seat 27 to slide against the inner wall of the shell 10. When the action rod 44 abuts against the action block, the action rod 44 is inserted into the rotating sleeve 43. Since one end of the action rod 44 is slidably connected with the square rod, the action rod 44 will not rotate. The surface of the action rod 44 is provided with external threads matched with the internal threads of the rotating sleeve 43. The external threads and the internal threads are not locked. When the action rod 44 moves towards the contraction direction of the return spring 41, the rotating sleeve 43 rotates. The first pulley installed on the rotating sleeve 43 drives the second pulley to rotate through the transmission belt. The second pulley drives the first gear coaxially installed on the second rotating shaft to rotate. The first gear drives the two U-shaped racks to move towards each other or away from each other in the action chamber 42, thereby driving the expansion plates 48 connected with the U-shaped racks through the vertical rod 49 to act on the vertical shaft 47. Specifically, when the two U-shaped racks move towards each other in the action chamber 42, the two expansion plates 48 make closing motion on the vertical shaft 47. When the two U-shaped racks move away from each other in the action chamber 42, the two expansion plates 48 make opening motion on the vertical shaft 47. Thus, the opening and closing motion of the two expansion plates 48 is realized. The wind generated by the opening and closing motion is directed towards the electric nozzle 33, thereby further improving the spraying area of the electric nozzle 33.

[0111] In one embodiment, a water collecting device is mounted on the top of the shell 10, a fan is mounted on the air outlet 11, a louver is mounted on the air inlet 12, and a water supplementing port connected to a water collecting pool 15 is mounted on the side end of the shell 10.

[0112] Obviously, the above embodiments are merely example for clearly illustrating but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be enumerated. The obvious changes or variations derived from the above description are still within the protection scope of the present application.

Claims

1. A closed cooling tower with uniform distribution of spray water, comprising a shell (10), an air outlet (11) located at the top end of the shell (10), and an air inlet (12) located at the side end of the shell (10), characterized in that, Also include: Condenser (18) and spray unit (14) are installed in the shell (10), heat exchange coil (13) is coiled on the condenser (18), cooling water runs in the heat exchange coil (13), the spray unit (14) is installed in the shell (10), the spray unit (14) is used for spraying heat exchange water uniformly on the heat exchange coil (13), the heat exchange water is collected into the water collecting tank (15) located at the bottom of the shell (10), and is pumped into the spray unit (14) again, the spray unit (14) comprises: inner spray assembly (21) and outer spray assembly (22), the outer spray assembly (22) is rotatably installed on the inner spray assembly (21), the outer spray assembly (22) sprays heat exchange water downward, and the inner spray assembly (21) rotates to spray heat exchange water; The inner spray assembly (21) comprises: Inner fixed seat (23), the inner fixed seat (23) is installed in the shell (10), and the outer spray assembly (22) is rotatably installed on the side end of the inner fixed seat (23); Water storage chamber (24), the water storage chamber (24) is located in the inner fixed seat (23), and the side end of the inner fixed seat (23) is provided with a water supply channel (25) communicated between the water storage chamber (24) and the outer spray assembly (22); Electric spray head one (26), a plurality of electric spray head one (26) are uniformly distributed on the bottom end of the inner fixed seat (23) and communicated with the water storage chamber (24); The outer spray assembly (22) comprises: Outer rotating ring seat (27), the outer rotating ring seat (27) is sleeved on the side end of the inner fixed seat (23); Rotating chamber (28), the rotating chamber (28) is annularly arranged at the inner ring end of the outer rotating ring seat (27) close to the top end position; Fixed gear ring (29), the fixed gear ring (29) is fixedly sleeved on the side end of the inner fixed seat (23); Rotating motor (20), the rotating motor (20) is installed in the rotating chamber (28), and the rotating gear (19) is installed on the output end of the rotating motor (20) and is engaged with the fixed gear ring (29); The outer spray assembly (22) further comprises: the water inlet chamber (31) is annularly arranged at the inner ring end of the outer rotating ring seat (27), the water inlet chamber (31) is located below the rotating chamber (28), the water supply channel (25) is communicated in the water inlet chamber (31), the overturning assembly is installed in the water inlet chamber (31), a plurality of overturning plates (32) are circumferentially connected to the bottom end of the outer rotating ring seat (27) through the support, one end of the top rod (34) abuts on the overturning plate (32), the other end of the top rod (34) extends into the water inlet chamber (31) and is connected with the overturning assembly, and the electric spray head two (33) is installed on the overturning plate (32) and communicated with the water inlet chamber (31) through the hose.

2. A closed type cooling tower for uniform distribution of spray water according to claim 1 wherein, Also include: Cooling water inlet (16) and cooling water outlet (17), the cooling water inlet (16) and the cooling water outlet (17) are installed on the side end of the shell (10) and communicated with the heat exchange coil (13).

3. A closed type cooling tower for uniform distribution of spray water as claimed in claim 1 wherein, The turnover assembly comprises: an annular limiting groove (35) sleeved on the side end of the inner fixing seat (23), a sliding sleeve (36) sleeved on the side end of the inner fixing seat (23) and connected to the bottom end of the annular limiting groove (35), a plurality of elastic telescopic rods (37) distributed circumferentially between the bottom end of the sliding sleeve (36) and the inner bottom of the water inlet chamber (31) with the inner fixing seat (23) as the center, a rotating sleeve ring (38) installed in the annular limiting groove (35), a waist-shaped hole is formed in the rotating sleeve ring (38), the other end of the jacking rod (34) abuts against the waist-shaped hole, a plurality of wedge-shaped blocks one (39) are circumferentially installed on the sliding sleeve (36), and wedge-shaped blocks two (30) are adapted to the wedge-shaped blocks one (39) and installed on the inner wall of the water inlet chamber (31).

4. A closed type cooling tower for uniform distribution of spray water as claimed in claim 1 wherein, The outer spraying assembly (22) further comprises: an expansion plate assembly, the number of the expansion plate assembly is equal to that of the turnover plate (32), and the expansion plate assembly is installed at the bottom end of the outer rotating ring seat (27); when the expansion plate assembly is opened and closed, the spraying area of the heat exchange water sprayed by the electric nozzle two (33) is increased; the action assembly is installed at the side end of the outer rotating ring seat (27) close to the bottom end; the action assembly is connected with the expansion plate assembly; a plurality of action blocks are circumferentially installed on the inner wall of the shell (10); when the action assembly is slidably connected to the action blocks, the expansion plate assembly is driven to open and close.

5. A closed type cooling tower for uniform distribution of spray water as claimed in claim 4 wherein, The action assembly comprises: an action chamber (42) arranged in the outer rotating ring seat (27), a rotating screw sleeve (43) extending into the action chamber (42) from the side end of the outer rotating ring seat (27), the rotating screw sleeve (43) sleeved on an action rod (44), one end of the action rod (44) slidably connected with a square rod installed on the inner wall of the action chamber (42), a reset spring (41) sleeved on the square rod, the other end of the action rod (44) adapted to the action block, two rotating shafts two symmetrically installed in the action chamber (42) with the rotating screw sleeve (43) as the center, a belt pulley one installed on the rotating screw sleeve (43), a belt pulley two and a gear one (45) installed on the rotating shafts two, a transmission belt sleeved on the belt pulley one and the belt pulley two, a U-shaped rack (46) slidably installed in the action chamber (42), the U-shaped rack (46) engaged with the gear one (45), and the U-shaped rack (46) connected with the expansion plate assembly.

6. A closed type cooling tower for uniform distribution of spray water as claimed in claim 5 wherein, The expansion plate assembly comprises: a vertical shaft (47) rotatably installed at the bottom end of the outer rotating ring seat (27), two expansion plates (48) hingedly rotatably installed on the vertical shaft (47), and a vertical rod (49) one end slidably connected to the top end of the expansion plate (48), the other end of the vertical rod (49) extending into the action chamber (42) and connected with the U-shaped rack (46).

7. A closed type cooling tower for uniform distribution of spray water as claimed in claim 1 wherein, A water collector is installed on the inner top of the shell (10), a fan is installed on the air outlet (11), a louver is installed on the air inlet (12), and a water supplement opening communicated with the water collecting pool (15) is installed on the side end of the shell (10).

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