A full steel structure cooling tower

Abstract

The present invention relates to a cooling tower, and in particular to an all-steel cooling tower. The present invention provides an all-steel cooling tower with a continuous negative pressure suction and preliminary cooling function. The present invention provides such an all-steel cooling tower, comprising a fixed outer shell, a filter screen, an external connecting pipe and a heat exchange tube disc, wherein a filter screen capable of filtering impurities is fixedly arranged on the upper inner part of the fixed outer shell, an external connecting pipe is symmetrically fixedly connected to the upper and lower front sides of the middle part of the fixed outer shell, a heat exchange tube disc is fixedly arranged in the middle part of the fixed outer shell, and the inner ends of the upper and lower external connecting pipes are connected to the heat exchange tube disc. The rotating nozzle rotates while spraying cold water to expand the spraying range, and the water sprayed by the rotating nozzle then falls to the upper cooling steel disc, and the cold water on the surface of the upper cooling steel disc then falls to the heat exchange tube disc for cooling, thereby cooling the hot water in the heat exchange tube disc.

Description

Technical Field

[0001] The invention relates to a cooling tower, in particular to a cooling tower with an all-steel structure. Background Art

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to lower the water temperature. It uses the heat exchange between water and air flow to generate steam, which evaporates and takes away heat to achieve evaporative heat dissipation to ensure the normal operation of the system.

[0003] The patent with the patent authorization announcement number CN214273096U discloses an all-steel cooling tower, which includes a square plate, a plurality of support rods are fixed on the upper surface of the square plate, a cooling box is fixed to the ends of the plurality of support rods, a water dispersion plate is fixed inside the cooling box, a heat exchange tube fixed inside the cooling box is arranged on the upper side of the water dispersion plate, a water spray pipe disc is fixed to the upper side of the heat exchange tube through a fixing rod, a water collecting plate fixed inside the cooling box is arranged on the upper side of the water spray pipe disc, a long plate is fixed to the end of the cooling box, a water turbine is fixed to the upper surface of the long plate, the shaft of the water turbine passes through the long plate and is fixed with fan blades, a water storage tank is fixed to the lower side of the square plate, and a submersible pump is arranged inside the water storage tank. The cooling tower can perform negative pressure suction while conveying water, reasonably utilize power, improve cooling effect, and filter dust, maintain the working efficiency of the cooling tower, extend service life, and reduce environmental pollution. The cooling tower performs preliminary cooling by performing negative pressure suction while conveying water. When water inside the water tank is not added in time, the fan blades may easily stop operating and no longer perform preliminary cooling by performing negative pressure suction, thereby affecting the cooling effect.

[0004] In view of the above problems, the present invention provides a full-steel cooling tower with the function of continuously performing negative pressure air suction for preliminary cooling. Summary of the invention

[0005] In order to overcome the disadvantage of the existing cooling tower that when the water inside the water tank is not added in time, the fan blades will easily stop working and no longer perform negative pressure suction for initial cooling, thus affecting the cooling effect, the technical problem of the present invention is to provide an all-steel cooling tower with the function of continuous negative pressure suction for initial cooling.

[0006] A full-steel cooling tower comprises a fixed shell, a filter, an external connecting pipe, a heat exchange tube coil, a water tank, a water supply pipe, a circulating spray mechanism, an air cooling mechanism and a water replenishing mechanism. A filter capable of filtering impurities is fixedly arranged on the upper inner part of the fixed shell, an external connecting pipe is symmetrically fixedly connected to the upper and lower front sides of the middle part of the fixed shell, a heat exchange tube coil is fixedly arranged in the middle part of the fixed shell, the inner ends of the upper and lower external connecting pipes are connected to the heat exchange tube coil, a water tank capable of storing clean water is fixedly arranged on the bottom of the fixed shell, a water supply pipe is fixedly connected to the left part of the water tank, a circulating spray mechanism capable of cooling the heat exchange tube coil is arranged on the left part of the fixed shell, an air cooling mechanism capable of preliminary cooling by negative pressure suction is arranged on the top of the fixed shell, and a water replenishing mechanism for adding water to the water tank is arranged on the water tank.

[0007] Optionally, the annular spray mechanism includes a spray pump, a water supply pipe, a spray pipe, a rotating nozzle and a cooling steel plate. The spray pump is fixedly arranged on the lower left part of the fixed shell, the right part of the spray pump is connected to the water supply pipe, the upper part of the spray pump is fixedly connected to the water supply pipe, the upper part of the water supply pipe is fixedly connected to the spray pipe, the spray pipe passes through the upper left part of the fixed shell, and a rotating nozzle capable of spraying water is rotatably arranged on the upper end of the spray pipe. The rotating nozzle is located in the fixed shell, and cooling steel plates capable of quickly cooling water sprayed from the rotating nozzle are fixedly arranged symmetrically above and below in the fixed shell, and the heat exchange tube plate is located between the two cooling steel plates.

[0008] Optionally, the air cooling mechanism includes a fixed cover, a servo motor, a first rotating shaft and an exhaust fan. The fixed cover is fixedly arranged on the top of the fixed shell, the servo motor is fixedly arranged at the center position of the top of the fixed cover, the first rotating shaft is arranged on the output shaft of the servo motor through a coupling, and the exhaust fan capable of discharging water mist is fixedly arranged on the first rotating shaft.

[0009] Optionally, the water replenishment mechanism includes a guide plate, a water inlet pipe and a valve. The guide plate is fixedly installed on the top of the water tank, a water outlet is opened on the right part of the guide plate, the right part of the water tank is fixedly connected to the water inlet pipe, and a valve is fixedly installed on the water inlet pipe.

[0010] Optionally, it also includes an anti-air suction mechanism for preventing the water supply pipe from sucking in air. The anti-air suction mechanism includes a reversing water suction pipe, a second rotating shaft, a flow limiting valve, a float and a contact switch. The right part of the water supply pipe is fixedly connected to the reversing water suction pipe, a water suction port is opened at the bottom of the reversing water suction pipe, a flow limiting valve is rotatably arranged in the reversing water suction pipe, a valve port is opened at the lower part of the flow limiting valve, a second rotating shaft is fixedly connected to the right part of the flow limiting valve, the second rotating shaft passes through the reversing water suction pipe, a float is fixedly arranged on the upper right part of the second rotating shaft, and a contact switch is fixedly arranged on the left side of the bottom of the water tank. The float will contact the contact switch when it rotates downward.

[0011] Optionally, it also includes a flow limiting mechanism capable of limiting the flow of water in the heat exchange tube disk, the flow limiting mechanism includes a turbine, a third rotating shaft, a fixed shaft, a sliding plate and an arc-shaped friction block, the turbine is fixedly arranged in the upper center position of the heat exchange tube disk, the third rotating shaft is connected to the rotor inside the turbine through a coupling, a plurality of fixed shafts are evenly spaced and fixedly arranged in the middle of the third rotating shaft, a sliding plate is slidably arranged on each fixed shaft, a plurality of arc-shaped friction blocks are evenly spaced and fixedly arranged on the turbine, and the sliding plate rotates and contacts the arc-shaped friction block.

[0012] Optionally, it also includes a boosting mechanism that can boost the pressure of water with a slower flow rate. The boosting mechanism includes a concave transmission block, a connecting plate, a triangular wedge block, a convex block and an elastic member. A concave transmission block is fixedly arranged at the bottom of the rotating nozzle, a connecting plate is fixedly arranged on the top of each sliding plate, a triangular wedge block is fixedly arranged on the upper part of the connecting plate, a convex block is slidably arranged on the upper part of the rotating shaft, and the convex block moves upward to engage with the concave transmission block. An elastic member is connected between the sliding plate and a nearby fixed shaft, and the elastic member is sleeved on the fixed shaft.

[0013] Optionally, exhaust holes are provided on both the front and rear sides of the fixed cover.

[0014] From the above description of the structure of the present invention, it can be seen that the design starting point, concept and advantages of the present invention are: 1. The rotating nozzle rotates while spraying cold water to expand the spraying range, and the water sprayed by the rotating nozzle falls to the upper cooling steel plate, and the cold water on the surface of the upper cooling steel plate falls onto the heat exchange tube coil for cooling, thereby cooling the hot water in the heat exchange tube coil.

[0015] 2. The exhaust fan rotates to draw up the water mist in the fixed shell, and the water mist is then discharged through the exhaust hole. When the exhaust fan rotates, the external cold air can be drawn into the fixed shell cavity, thereby further cooling the heat exchange tube coil.

[0016] 3. Under the action of the guide plate, the hot water flows back into the water tank through the water outlet to mix with the cold water for cooling again.

[0017] 4. The downward movement of the floating block drives the shaft to rotate, and the rotation of the shaft drives the flow limiting valve to rotate, so that the valve port and the water suction port are not connected. The spray pump no longer pumps water into the water pipe and the spray pipe, thereby preventing the spray pump from pumping in air, which affects the cooling effect of the heat exchange tube coil.

[0018] 5. When the amount of cold water in the water tank decreases, the float moves downward and contacts the contact switch. The contact switch controls the external alarm to sound, thereby reminding the staff to add cold water to the water tank in time.

[0019] 6. Under the action of the friction force generated by the sliding plate and the arc-shaped friction block, the speed of the third shaft slows down. The slow speed of the third shaft drives the rotor inside the turbine to slow down, thereby controlling the flow rate of hot water in the heat exchange tube coil, preventing the hot water from flowing out through the upper external connecting pipe for use before it is completely cooled.

[0020] 7. When the hot water flow rate is slow, the convex block will slide upward and engage with the concave transmission block. The rotating nozzle rotates to drive the convex block to rotate through the concave transmission block. The rotation of the convex block drives the third shaft to rotate at a constant speed. The constant rotation of the third shaft drives the rotor inside the turbine to rotate to pressurize the hot water in the heat exchange tube coil, thereby ensuring the cooling efficiency of the hot water in the heat exchange tube coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention.

[0023] Figure 3 It is a partial three-dimensional structural schematic diagram of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the circulating spray mechanism of the present invention.

[0025] Figure 5 It is a partial three-dimensional structural schematic diagram of the circulating spray mechanism of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the air cooling mechanism of the present invention.

[0027] Figure 7 It is a partial cross-sectional structural schematic diagram of the air cooling mechanism of the present invention.

[0028] Figure 8 It is a partial three-dimensional cross-sectional structural schematic diagram of the water replenishment mechanism of the present invention.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the anti-air suction mechanism of the present invention.

[0030] Fig.10 It is a partial cross-sectional structural schematic diagram of the anti-air suction mechanism of the present invention.

[0031] Fig.11 It is a schematic diagram of the first three-dimensional structure of the current limiting mechanism of the present invention.

[0032] Fig.12 It is a schematic diagram of the second three-dimensional structure of the current limiting mechanism of the present invention.

[0033] Fig.13It is a schematic diagram of the first three-dimensional structure of the boosting mechanism of the present invention.

[0034] Fig.14 It is a schematic diagram of the second three-dimensional structure of the boosting mechanism of the present invention.

[0035] Fig.15 It is a partial three-dimensional structural schematic diagram of the boosting mechanism of the present invention.

[0036] Markings in the accompanying drawings: 1: fixed shell, 2: filter screen, 3: external connecting pipe, 4: heat exchange tube coil, 5: water tank, 6: water supply pipe, 7: circulating spray mechanism, 701: spray pump, 702: water supply pipe, 703: spray pipe, 704: rotating nozzle, 705: cooling steel plate, 8: air cooling mechanism, 801: fixed cover, 802: servo motor, 803: first rotating shaft, 804: exhaust fan, 805: exhaust hole, 9: water replenishment mechanism, 901: guide plate, 902: water outlet, 903: water inlet pipe, 904: valve, 1 0: anti-air suction mechanism, 1001: reversing water suction pipe, 1002: water suction port, 1003: second rotating shaft, 1004: flow limiting valve, 1005: floating block, 1006: valve port, 1007: contact switch, 11: flow limiting mechanism, 1101: turbine, 1102: third rotating shaft, 1103: fixed shaft, 1104: sliding plate, 1105: arc-shaped friction block, 12: boosting mechanism, 1201: concave transmission block, 1202: connecting plate, 1203: triangular wedge block, 1204: convex block, 1205: elastic member. DETAILED DESCRIPTION

[0037] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0038] Example 1

[0039] See also Figure 1-Figure 8 , an all-steel cooling tower, including a fixed shell 1, a filter screen 2, an external connecting pipe 3, a heat exchange tube coil 4, a water tank 5, a water supply pipe 6, a circulating spray mechanism 7, an air cooling mechanism 8 and a water replenishing mechanism 9. A filter screen 2 is fixedly arranged on the upper inner part of the fixed shell 1, and the filter screen 2 can filter impurities. The external connecting pipe 3 is symmetrically fixedly connected to the front side of the middle part of the fixed shell 1, and a heat exchange tube coil 4 is welded in the middle part of the fixed shell 1. The inner ends of the upper and lower external connecting pipes 3 are connected to the heat exchange tube coil 4. A water tank 5 is fixedly arranged at the bottom of the fixed shell 1, and the water tank 5 can store clean water. A water supply pipe 6 is fixedly connected to the left part of the water tank 5. A circulating spray mechanism 7 is arranged on the left part of the fixed shell 1, and the circulating spray mechanism 7 can cool down the heat exchange tube coil 4. An air cooling mechanism 8 is arranged on the top of the fixed shell 1, and the air cooling mechanism 8 can perform negative pressure suction wind for preliminary cooling. A water replenishing mechanism 9 is arranged on the water tank 5, and the water replenishing mechanism 9 is convenient for adding water to the water tank 5.

[0040] See also Figure 4-Figure 5 The annular spray mechanism includes a spray pump 701, a water pipe 702, a spray pipe 703, a rotating nozzle 704 and a cooling steel plate 705. The spray pump 701 is provided at the lower left part of the fixed shell 1 by screw connection. The right part of the spray pump 701 is connected to the water supply pipe 6. The upper part of the spray pump 701 is fixedly connected to the water pipe 702. The upper part of the water pipe 702 is fixedly connected to the spray pipe 703. The spray pipe 703 runs through the upper left part of the fixed shell 1. The upper end of the spray pipe 703 is rotatably provided with a rotating nozzle 704. The rotating nozzle 704 can spray water. The rotating nozzle 704 is located in the fixed shell 1. Cooling steel plates 705 are symmetrically welded in the fixed shell 1. The cooling steel plate 705 can quickly cool the water sprayed from the rotating nozzle 704. The heat exchange tube plate 4 is located between the two cooling steel plates 705.

[0041] See also Figure 6-Figure 7 The air cooling mechanism 8 includes a fixed cover 801, a servo motor 802, a first rotating shaft 803 and an exhaust fan 804. The fixed cover 801 is welded on the top of the fixed shell 1. Exhaust holes 805 are opened on the front and rear sides of the fixed cover 801. The servo motor 802 is arranged at the center position of the top of the fixed cover 801 by screw connection. The first rotating shaft 803 is arranged on the output shaft of the servo motor 802 through a coupling. The exhaust fan 804 is fixedly arranged on the first rotating shaft 803, and the exhaust fan 804 can discharge water mist.

[0042] See also Figure 8 The water replenishment mechanism 9 includes a guide plate 901, a water inlet pipe 903 and a valve 904. The guide plate 901 is welded on the top of the water tank 5, a water outlet 902 is opened on the right part of the guide plate 901, the right part of the water tank 5 is fixedly connected to the water inlet pipe 903, and a valve 904 is fixedly arranged on the water inlet pipe 903.

[0043] When it is necessary to use the device, the staff connects the external hot water pipe to the lower external connecting pipe 3, and then connects the pipe that needs to use cold water to the upper external connecting pipe 3, and the hot water in the external hot water pipe then enters the heat exchange tube disc 4. At this time, the staff connects the external water pipe to the water inlet pipe 903, and then the staff turns the valve 904 to open the water inlet pipe 903, and the cold water then enters the water tank 5 through the water inlet pipe 903. When the cold water in the water tank 5 reaches a certain amount, the staff reverses the valve 904 to close the water inlet pipe 903. After closing, the staff starts the spray pump 701, and the spray pump 701 operates to pump the cold water in the water tank 5 into the water delivery pipe 702 and the spray pipe 703 through the water delivery pipe 6. The cold water in the spray pipe 703 is then sprayed out through the rotating nozzle 704. The rotating nozzle 704 rotates while spraying cold water to expand the spraying range. The water sprayed by the rotating nozzle 704 then falls to the upper cooling steel plate 705. The cold water on the surface of the upper cooling steel plate 705 then falls onto the heat exchange tube plate 4 for cooling, thereby cooling the hot water in the heat exchange tube plate 4. The water cooled by the heat exchange tube plate 4 forms hot water, which then falls to the surface of the lower cooling steel plate 705. Since the cooling steel plate 705 is made of steel, the hot water can be preliminarily cooled. The hot water on the surface of the lower cooling steel plate 705 then falls to the surface of the guide plate 901. Under the action of the guide plate 901, the hot water passes through the heat exchange tube plate 4. The water flows back to the water tank 5 through the water outlet 902 and mixes with the cold water for cooling again. Under the action of the spray pump 701, the water in the water tank 5 is pumped out again and sprayed out through the rotating nozzle 704. This is repeated, thereby achieving the purpose of water circulation. When the cold water contacts the surface of the heat exchange tube coil 4, water mist will be formed under the action of heat. At this time, the staff starts the servo motor 802. The output shaft of the servo motor 802 rotates to drive the first rotating shaft 803 to rotate. The rotation of the first rotating shaft 803 drives the exhaust fan 804 to rotate. The exhaust fan 804 rotates to draw up the water mist in the fixed shell 1, and the water mist is discharged through the exhaust hole 805. This process will form a negative pressure inside the fixed shell 1, so that the cold air outside the device is discharged from The lower part of the fixed shell 1 is hollowed out, and the interior of the fixed shell 1 is entered. When the exhaust fan 804 rotates, the external cold air is drawn into the cavity of the fixed shell 1, thereby further cooling the heat exchange tube coil 4. Under the action of the filter 2, large impurities can be prevented from falling into the cavity of the fixed shell 1. When the cold water in the water tank 5 is reduced, the staff turns the valve 904 again to open the water inlet pipe 903, so that the cold water in the external water pipe is added to the water tank 5. When the cold water in the water tank 5 reaches a certain amount, the staff reverses the valve 904 to close the water inlet pipe 903. After the use of this device is completed, the staff turns off the spray pump 701 and the servo motor 802 to stop the operation, and then the staff removes the external water pipe.

[0044] Example 2

[0045] See also Figure 9-10 On the basis of Example 1, an anti-air suction mechanism 10 is also included. The anti-air suction mechanism 10 prevents the water supply pipe 6 from sucking in air. The anti-air suction mechanism 10 includes a reversing water suction pipe 1001, a second rotating shaft 1003, a flow limiting valve 1004, a floating block 1005 and a contact switch 1007. The right part of the water supply pipe 6 is fixedly connected with the reversing water suction pipe 1001. The bottom of the reversing water suction pipe 1001 is provided with a water suction port 1002. A flow limiting valve 1004 is rotatably arranged in the water tank 5, a valve port 1006 is opened at the lower part of the flow limiting valve 1004, a second rotating shaft 1003 is fixedly connected to the right part of the flow limiting valve 1004, the second rotating shaft 1003 passes through the reversing water suction pipe 1001, a floating block 1005 is fixedly arranged at the upper right part of the second rotating shaft 1003, a contact switch 1007 is fixedly arranged at the left side of the bottom of the water tank 5, and the floating block 1005 will contact the contact switch 1007 when it rotates downward.

[0046] When using the device, the staff electrically connects the contact switch 1007 with the external alarm. When the cold water in the water tank 5 decreases, the float 1005 moves downward and contacts the contact switch 1007. The contact switch 1007 controls the external alarm to sound, thereby prompting the staff to add cold water to the water tank 5 in time. The float 1005 moves downward and drives the second rotating shaft 1003 to rotate. The rotation of the second rotating shaft 1003 drives the flow limiting valve 1004 to rotate, thereby making the valve port 1006 no longer communicate with the water suction port 1002, and the spray pump 701 no longer operates to pump water into the water delivery pipe 702 and the spray pipe 703, thereby preventing the spray pump 701 from drawing in air, thereby affecting the cooling effect of the heat exchange tube coil 4. After the water tank 5 is filled with cold water, the float 1005 floats upward and drives the second rotating shaft 1003 to reverse and reset. The reversal of the second rotating shaft 1003 drives the limiting valve 1004 to reverse and reset, thereby making the valve port 1006 communicate with the water suction port 1002. Under the action of the operation of the spray pump 701, the cold water in the water tank 5 is drawn into the water delivery pipe 702 and the spray pipe 703 through the valve port 1006, the water suction port 1002, the reversing water suction pipe 1001 and the water delivery pipe 6, so that the cold water is sprayed out from the rotating nozzle 704.

[0047] See also Figure 11-Figure 12, and also includes a flow limiting mechanism 11, which can limit the flow of water in the heat exchange tube disk 4. The flow limiting mechanism 11 includes a turbine 1101, a third rotating shaft 1102, a fixed shaft 1103, a sliding plate 1104 and an arc-shaped friction block 1105. The turbine 1101 is fixedly arranged in the center position of the upper part of the heat exchange tube disk 4. The turbine 1101 is connected to the heat exchange tube disk 4. The rotor inside the turbine 1101 is connected to the third rotating shaft 1102 through a coupling. Five fixed shafts 1103 are evenly spaced and fixedly arranged in the middle of the third rotating shaft 1102. A sliding plate 1104 is slidably arranged on each fixed shaft 1103. Five arc-shaped friction blocks 1105 are evenly spaced and fixedly arranged on the turbine 1101. The sliding plate 1104 rotates and contacts with the arc-shaped friction block 1105.

[0048] See also Figure 13-Figure 15 , also includes a boosting mechanism 12, the boosting mechanism 12 can boost the water with a slower flow rate, the boosting mechanism 12 includes a concave transmission block 1201, a connecting plate 1202, a triangular wedge block 1203, a convex block 1204 and an elastic member 1205, a concave transmission block 1201 is welded at the bottom of the rotating nozzle 704, a connecting plate 1202 is fixedly provided on the top of each sliding plate 1104, a triangular wedge block 1203 is fixedly provided on the upper part of the connecting plate 1202, a convex block 1204 is slidably provided on the upper part of the rotating shaft, the convex block 1204 moves upward to engage with the concave transmission block 1201, an elastic member 1205 is connected between the sliding plate 1104 and the adjacent fixed shaft 1103, and the elastic member 1205 is sleeved on the fixed shaft 1103.

[0049] When the device is needed, the staff connects the external hot water pipe to the lower external connecting pipe 3, and then connects the pipe that needs to use cold water to the upper external connecting pipe 3. The hot water in the external hot water pipe then enters the heat exchange tube disc 4. The flow of hot water causes the rotor inside the turbine 1101 to rotate. The rotation of the rotor inside the turbine 1101 drives the third rotating shaft 1102 to rotate. The rotation of the third rotating shaft 1102 drives the sliding plate 1104 to slide outward on the fixed shaft 1103 under the action of centrifugal force. The elastic member 1205 is stretched accordingly, and the sliding plate 1104 slides outward through the connecting plate 1202 to drive the triangular wedge block 1203 The convex block 1204 is no longer squeezed by the outward movement, and the convex block 1204 slides downward under the action of gravity and disengages from the concave transmission block 1201. When the hot water flow rate in the heat exchange tube coil 4 is faster, the faster hot water flow rate causes the rotor inside the turbine 1101 to rotate, and the rotation of the rotor inside the turbine 1101 drives the third rotating shaft 1102 to rotate. The rotation of the third rotating shaft 1102 drives the sliding plate 1104 to slide outward on the fixed shaft 1103 under the action of centrifugal force, and the elastic member 1205 continues to be stretched, and the sliding plate 1104 slides outward and contacts the arc-shaped friction block 1105. 5, the rotation speed of the third rotating shaft 1102 slows down, and the slow rotation speed of the third rotating shaft 1102 drives the rotor inside the turbine 1101 to slow down, thereby controlling the flow rate of hot water in the heat exchange tube disk 4, and preventing the hot water from flowing out through the upper external connecting pipe 3 for use before it is completely cooled. When the hot water flow rate is slow, the rotation speed of the third rotating shaft 1102 is slow, and the centrifugal force is small, the elastic member 1205 is reset accordingly, driving the sliding plate 1104 to slide inward on the fixed shaft 1103 and reset, and the sliding plate 1104 slides inward and resets, and drives the triangular wedge block 1203 to move inward and reset through the connecting plate 1202. The triangular wedge block 1203 moves inward to squeeze the convex block 1204 to slide upward to reset, the convex block 1204 slides upward to engage with the concave transmission block 1201, and the rotating nozzle 704 rotates through the concave transmission block 1201 to drive the convex block 1204 to rotate, and the rotation of the convex block 1204 drives the third shaft 1102 to rotate at a uniform speed, and the uniform rotation of the third shaft 1102 drives the rotor inside the turbine 1101 to rotate to pressurize the hot water in the heat exchange tube disk 4, thereby ensuring the cooling efficiency of the hot water in the heat exchange tube disk 4. When the external hot water pipe no longer transports hot water to the heat exchange tube disk 4 through the lower external connecting pipe 3, the turbine 1101 stops rotating.

[0050] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A cooling tower with an all-steel structure, comprising a fixed shell (1), a filter screen (2), an external connecting pipe (3), a heat exchange tube coil (4), a water tank (5) and a water supply pipe (6), wherein a filter screen (2) capable of filtering impurities is fixedly arranged at the upper inner part of the fixed shell (1), an external connecting pipe (3) is fixedly connected to the front side of the middle part of the fixed shell (1) symmetrically up and down, a heat exchange tube coil (4) is fixedly arranged in the middle part of the fixed shell (1), the inner ends of the upper and lower external connecting pipes (3) are connected to the heat exchange tube coil (4), and a water tank (5) capable of storing clean water is fixedly arranged at the bottom of the fixed shell (1), wherein: The invention also comprises a circulating spray mechanism (7), an air cooling mechanism (8) and a water replenishing mechanism (9); the left part of the water tank (5) is fixedly connected to a water supply pipe (6); the left part of the fixed shell (1) is provided with a circulating spray mechanism (7) capable of cooling the heat exchange tube coil (4); the top of the fixed shell (1) is provided with an air cooling mechanism (8) capable of initially cooling the heat exchange tube coil by negative pressure suction; the water tank (5) is provided with a water replenishing mechanism (9) for facilitating water addition into the water tank (5); and the invention also comprises an anti-air suction mechanism (10) for preventing the water supply pipe (6) from sucking in air; the anti-air suction mechanism (10) comprises a reversing water suction pipe (1001), a second rotating shaft (1003), a flow limiting valve (1004), a floating block (1005) and a contact switch (1006). 1007), a reversing water suction pipe (1001) is fixedly connected to the right side of the water supply pipe (6), a water suction port (1002) is provided at the bottom of the reversing water suction pipe (1001), a flow limiting valve (1004) is rotatably arranged in the reversing water suction pipe (1001), a valve port (1006) is provided at the lower part of the flow limiting valve (1004), a second rotating shaft (1003) is fixedly connected to the right side of the flow limiting valve (1004), the second rotating shaft (1003) passes through the reversing water suction pipe (1001), a floating block (1005) is fixedly arranged at the upper right side of the second rotating shaft (1003), a contact switch (1007) is fixedly arranged at the left side of the bottom of the water tank (5), and the floating block (1005) will contact the contact switch (1007) when it rotates downward.

2. The all-steel cooling tower according to claim 1 is characterized in that: The ring spray mechanism comprises a spray pump (701), a water delivery pipe (702), a spray pipe (703), a rotating spray head (704) and a cooling steel plate (705). The spray pump (701) is fixedly arranged at the lower left part of the fixed housing (1). The right part of the spray pump (701) is connected to the water delivery pipe (6). The upper part of the spray pump (701) is fixedly connected to the water delivery pipe (702). The upper part of the water delivery pipe (702) is fixedly connected to the spray pipe (703). The shower pipe (703) passes through the upper left part of the fixed shell (1); a rotating nozzle (704) capable of spraying water is rotatably arranged at the upper end of the shower pipe (703); the rotating nozzle (704) is located in the fixed shell (1); cooling steel plates (705) capable of quickly cooling water sprayed from the rotating nozzle (704) are symmetrically fixedly arranged in the fixed shell (1); and the heat exchange tube plate (4) is located between the two cooling steel plates (705).

3. The all-steel cooling tower according to claim 2 is characterized in that: The air cooling mechanism (8) comprises a fixed cover (801), a servo motor (802), a first rotating shaft (803) and an exhaust fan (804); the fixed cover (801) is fixedly arranged on the top of the fixed housing (1); the servo motor (802) is fixedly arranged at the center position of the top of the fixed cover (801); the first rotating shaft (803) is arranged on the output shaft of the servo motor (802) via a coupling; and the exhaust fan (804) capable of discharging water mist is fixedly arranged on the first rotating shaft (803).

4. The all-steel cooling tower according to claim 3 is characterized in that: The water replenishment mechanism (9) comprises a guide plate (901), a water inlet pipe (903) and a valve (904); the guide plate (901) is fixedly arranged on the top of the water tank (5); a water outlet (902) is opened on the right part of the guide plate (901); the water inlet pipe (903) is fixedly connected to the right part of the water tank (5); and the valve (904) is fixedly arranged on the water inlet pipe (903).

5. The all-steel cooling tower according to claim 4 is characterized in that: The invention also comprises a flow limiting mechanism (11) capable of limiting the flow of water in the heat exchange tube coil (4), the flow limiting mechanism (11) comprising a turbine (1101), a third rotating shaft (1102), a fixed shaft (1103), a sliding plate (1104) and an arc-shaped friction block (1105), the turbine (1101) being fixedly arranged in the center of the upper part of the heat exchange tube coil (4), the rotor inside the turbine (1101) being connected to the third rotating shaft (1102) via a coupling, a plurality of fixed shafts (1103) being fixedly arranged at even intervals in the middle of the third rotating shaft (1102), a sliding plate (1104) being slidably arranged on each fixed shaft (1103), a plurality of arc-shaped friction blocks (1105) being fixedly arranged at even intervals on the turbine (1101), and the sliding plate (1104) rotatingly contacts the arc-shaped friction blocks (1105).

6. The all-steel cooling tower according to claim 5, characterized in that: The invention also comprises a pressure-boosting mechanism (12) capable of pressurizing water with a relatively slow flow rate. The pressure-boosting mechanism (12) comprises a concave transmission block (1201), a connecting plate (1202), a triangular wedge block (1203), a convex block (1204) and an elastic member (1205). The bottom of the rotating nozzle (704) is fixedly provided with a concave transmission block (1201), the top of each sliding plate (1104) is fixedly provided with a connecting plate (1202), the upper part of each connecting plate (1202) is fixedly provided with a triangular wedge block (1203), the upper part of the rotating shaft is slidably provided with a convex block (1204), the convex block (1204) moves upward to engage with the concave transmission block (1201), the sliding plate (1104) is connected with a neighboring fixed shaft (1103) and the elastic member (1205) is sleeved on the fixed shaft (1103).

7. The all-steel cooling tower according to claim 3 is characterized in that: The fixed cover (801) is provided with exhaust holes (805) at both the front and rear sides.

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