Closed cooling tower with heat exchange tubes provided with turbulent flow devices

Abstract

The utility model relates to the technical field of cooling equipment, and discloses a closed cooling tower with heat exchange tubes provided with turbulent flow devices, which comprises a base and a closed cooling tower, the closed cooling tower comprises a heat exchange layer, and a plurality of heat exchange tubes are arranged in the heat exchange layer; a plurality of spoilers are arranged in the heat exchange tube, and a plurality of spoiler holes are formed in the spoilers. The spoilers in the heat exchange tube are spirally arranged in the axis direction of the heat exchange tube, so that fluid resistance is reduced, fluid is guided to rotate and flow, the purpose of disturbing the fluid is achieved, equipment energy consumption is reduced, the turbulence degree of the fluid is enhanced, and the heat exchange efficiency is improved; through the arrangement of the spoiler holes in the spoiler, turbulent flow can be formed on the edges of the spoiler holes when fluid passes through the spoiler, the turbulent flow can enhance the mixing degree of the fluid and improve the heat exchange or mass transfer efficiency, and the spoiler holes can help control the generation position and number of bubbles and are beneficial to improving the heat exchange efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling equipment, in particular to a closed cooling tower with a heat exchange tube and a turbulent device. Background Art

[0002] Closed cooling towers are widely used in industrial refrigeration, air-conditioning systems and power systems. They adopt a closed circulation system. The cooling medium circulates in the system without direct contact with the outside world, thus avoiding water pollution and debris entering the system. Closed cooling towers have the characteristics of high efficiency, energy saving, and automatic control, making closed cooling towers gradually become an indispensable cooling equipment in modern industrial processes.

[0003] A Chinese patent discloses a closed cooling tower with the publication number CN203249515U, which includes a tower frame, an air inlet window, a water inlet and a water outlet on the outer wall of the tower frame, a heat exchange coil, a concrete water pool, a spray pump, a water collector, a water distribution spray pipe, an air inlet window, and a fan are arranged in the tower frame, and a filler is arranged under the water distribution spray pipe, the filler is in the form of a sheet and the filler is in the form of a wave.

[0004] The closed cooling tower mentioned above has the problem of low efficiency in the heat exchange process, mainly because the cooling medium tends to form laminar flow when flowing in the pipes of the tubular heat exchanger used in the equipment, resulting in insufficient heat transfer. Therefore, it is necessary to provide a closed cooling tower with a heat exchange tube with a turbulent device. Utility Model Content

[0005] The utility model aims to provide a closed cooling tower with a heat exchange tube with a turbulent device to solve the problem that in the existing closed cooling tower, the cooling medium flows in the tube easily to form laminar flow during the heat exchange process, resulting in insufficient heat transfer.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed cooling tower with a heat exchange tube spoiler device, comprising a base and a closed cooling tower, the closed cooling tower comprising a water storage layer, a filter layer, a heat exchange layer, a spray layer and an exhaust layer from bottom to top, a plurality of heat exchange tubes are arranged in the heat exchange layer, the water inlet end and the water outlet end of the plurality of heat exchange tubes are both connected with a diverter, the diverter at the water inlet end of the heat exchange tube is connected with an inlet pipe, the diverter at the water outlet end of the heat exchange tube is connected with an outlet pipe, the inlet pipe and the outlet pipe both pass through the heat exchange layer of the closed cooling tower; a plurality of spoilers are arranged in the heat exchange tube, the plurality of spoilers are spirally arranged along the axial direction of the heat exchange tube, the shape of the spoiler is trapezoidal, the wide side of the spoiler is fixed to the inner wall of the heat exchange tube, the narrow side of the spoiler faces the flow direction of the fluid, and a plurality of spoiler holes are opened on the spoiler.

[0007] Preferably, the water storage layer is connected with a water injection pipe and a drainage pipe, and fillers are fixedly arranged in the filter layer.

[0008] Preferably, a plurality of spray pipes are fixedly arranged in the spray layer, and a plurality of spray heads are connected and arranged on the spray pipes.

[0009] Preferably, a pump is fixedly provided on the base, a water inlet end of the pump is connected to a pumping pipe, the pumping pipe is connected to the aquifer, a water outlet end of the pump is connected to a connecting pipe, a three-way pipe is connected to the connecting pipe, the three-way pipe passes through the spray layer and is connected to multiple spray pipes.

[0010] Preferably, a water-permeable membrane is fixedly provided in the exhaust layer, and an exhaust pipe is connected to the exhaust layer.

[0011] Preferably, a fixed bracket is fixedly arranged in the exhaust pipe, an induced draft fan is fixedly arranged in the fixed bracket, a dustproof filter is arranged on the induced draft fan, and the dustproof filter is fixedly arranged in the exhaust pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1) The closed cooling tower with a heat exchange tube spoiler device has spoilers in the heat exchange tube arranged in a spiral shape along the axial direction of the heat exchange tube. The spoilers are trapezoidal in shape, with their wide sides fixed to the inner wall of the heat exchange tube and their narrow sides facing the flow direction of the fluid, so as to reduce the fluid resistance and guide the fluid to produce a rotating flow, thereby achieving the purpose of disturbing the fluid, reducing the energy consumption of the equipment, enhancing the turbulence of the fluid, and improving the heat exchange efficiency.

[0014] 2) The closed cooling tower with a heat exchange tube and a spoiler device, through the setting of the spoiler holes on the spoiler plate, forms turbulence at the edge of the spoiler holes when the fluid passes through the spoiler plate. This turbulence can enhance the mixing degree of the fluid and improve the heat exchange or mass transfer efficiency. The spoiler holes can promote the pressure balance of the fluid on both sides of the spoiler plate within a certain range, thereby reducing the pressure fluctuation caused by the change of the kinetic energy of the fluid. The spoiler holes can also help control the generation position and number of bubbles, which is beneficial to improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a closed cooling tower with a heat exchange tube and a flow disturbance device in an embodiment of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of a closed cooling tower in an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the heat exchange tube in the embodiment of the utility model;

[0018] Figure 4It is a schematic diagram of the three-dimensional structure of the spoiler in the embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the exhaust layer in the embodiment of the utility model.

[0020] In the figure: 1. base; 2. closed cooling tower; 201. water storage layer; 202. filter layer; 203. heat exchange layer; 204. spray layer; 205. exhaust layer; 3. water injection pipe; 4. drainage pipe; 5. filler; 6. heat exchange pipe; 7. diverter; 8. water inlet pipe; 9. water outlet pipe; 10. spoiler; 11. spoiler hole; 12. pump; 13. water suction pipe; 14. connecting pipe; 15. three-way pipe; 16. spray pipe; 17. spray head; 18. water permeable membrane; 19. exhaust pipe; 20. fixed bracket; 21. induced draft fan; 22. dust filter. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0022] Combination Figure 1-Figure 5A closed cooling tower with a heat exchange tube with a turbulent device comprises a base 1 and a closed cooling tower 2. The closed cooling tower 2 comprises, from bottom to top, a water storage layer 201, a filter layer 202, a heat exchange layer 203, a spray layer 204 and an exhaust layer 205. A plurality of heat exchange tubes 6 are arranged in the heat exchange layer 203. The water inlet ends and the water outlet ends of the plurality of heat exchange tubes 6 are both connected with a diverter 7. The diverter 7 at the water inlet end of the heat exchange tube 6 is connected with an inlet pipe 8. The diverter 7 at the water outlet end of the heat exchange tube 6 is connected with an outlet pipe 9. The inlet pipe 8 and the outlet pipe 9 both penetrate the heat exchange layer 203 of the closed cooling tower 2. The water storage layer 201 is connected with a water injection pipe 3 and a drain pipe 4. A filler 5 is fixedly arranged in the filter layer 202. A plurality of sprays are fixedly arranged in the spray layer 204. A shower pipe 16 is provided, and a plurality of sprinkler heads 17 are connected to the shower pipe 16. A pump 12 is fixedly provided on the base 1. A water inlet end of the pump 12 is connected to a water pumping pipe 13, and the water pumping pipe 13 is connected to the aquifer 201. A connecting pipe 14 is provided to the water outlet end of the pump 12. A three-way pipe 15 is connected to the connecting pipe 14. The three-way pipe 15 passes through the spray layer 204 and is connected to the plurality of spray pipes 16. A water-permeable membrane 18 is fixedly provided in the exhaust layer 205. An exhaust pipe 19 is connected to the exhaust layer 205. A fixed bracket 20 is fixedly provided in the exhaust pipe 19. An induced draft fan 21 is fixedly provided in the fixed bracket 20. A dust filter 22 is provided on the induced draft fan 21, and the dust filter 22 is fixedly provided in the exhaust pipe 19.

[0023] Specifically, the fluid enters through the water inlet pipe 8, is diverted by the diverter 7, and then enters multiple heat exchange tubes 6. When the fluid flows in the heat exchange tubes 6, the pump 12 is started to pump the soft water in the water storage layer 201 into the spray pipe 16, and is sprayed downward by multiple spray heads 17. After the heat exchange tubes 6 are sprayed and cooled, the soft water is filtered by the filler 5 and can fall back into the water storage layer 201, thereby realizing the recycling of soft water and reducing resource waste. The water vapor generated by the cooling is dehumidified by the water permeable membrane 18, and then guided by the induced draft fan 21 to be discharged to the outside. The dust filter 22 arranged on the exhaust pipe 19 can prevent external dust from entering the closed cooling tower 2. Embodiment 2

[0024] See also Figure 3 and Figure 4 It is further obtained that a plurality of spoilers 10 are arranged in the heat exchange tube 6, and the plurality of spoilers 10 are arranged spirally along the axial direction of the heat exchange tube 6. The shape of the spoiler 10 is trapezoidal, and the wide side of the spoiler 10 is fixed to the inner wall of the heat exchange tube 6, and the narrow side of the spoiler 10 faces the flow direction of the fluid, and a plurality of spoiler holes 11 are opened on the spoiler 10.

[0025] Specifically, the spoiler 10 in the heat exchange tube 6 is arranged in a spiral shape along the axial direction of the heat exchange tube 6. The spoiler 10 is in a trapezoidal shape, with its wide side fixed to the inner wall of the heat exchange tube 6 and its narrow side facing the flow direction of the fluid, so as to reduce the fluid resistance and guide the fluid to produce a rotating flow, thereby achieving the purpose of disturbing the fluid, reducing the energy consumption of the equipment, enhancing the turbulence of the fluid, and improving the heat exchange efficiency; through the arrangement of the spoiler holes 11 on the spoiler 10, the fluid will form turbulence at the edge of the spoiler holes 11 when passing through the spoiler 10. This turbulence can enhance the mixing degree of the fluid and improve the heat exchange or mass transfer efficiency. The spoiler holes 11 can promote the pressure balance of the fluid on both sides of the spoiler 10 within a certain range, thereby reducing the pressure fluctuation caused by the change of the kinetic energy of the fluid. The spoiler holes 11 can also help control the generation position and number of bubbles, which is beneficial to improving the heat exchange efficiency.

[0026] In actual operation, the fluid enters through the water inlet pipe 8, and enters into a plurality of heat exchange tubes 6 after being diverted by the diverter 7. The spoiler 10 in the heat exchange tube 6 is arranged in a spiral shape along the axial direction of the heat exchange tube 6. The spoiler 10 is in a trapezoidal shape, with its wide side fixed to the inner wall of the heat exchange tube 6 and its narrow side facing the fluid flow direction to reduce fluid resistance. At the same time, when the fluid passes through the spoiler hole 11 on the spoiler 10, turbulence will be formed at the edge of the spoiler hole 11. This turbulence can enhance the mixing degree of the fluid and improve the heat exchange or mass transfer efficiency. The spoiler hole 11 can promote the pressure balance of the fluid on both sides of the spoiler 10 within a certain range, thereby reducing the pressure fluctuation caused by the change of the fluid kinetic energy.

[0027] When the fluid flows in the heat exchange tube 6, the pump 12 is started to pump the soft water in the water storage layer 201 into the spray pipe 16 and sprayed downward by multiple spray heads 17. After the heat exchange tube 6 is sprayed and cooled, the soft water can fall back into the water storage layer 201 after being filtered by the filler 5, so as to realize the recycling of soft water and reduce resource waste. The water vapor generated by cooling is dehumidified by the water permeable membrane 18 and then discharged to the outside through the guidance of the induced draft fan 21. The dust filter 22 arranged on the exhaust pipe 19 can prevent external dust from entering the closed cooling tower 2.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A closed cooling tower with a heat exchange tube and a turbulent device, comprising a base (1) and a closed cooling tower (2), wherein the closed cooling tower (2) comprises, from bottom to top, a water storage layer (201), a filter layer (202), a heat exchange layer (203), a spray layer (204) and an exhaust layer (205), characterized in that: A plurality of heat exchange tubes (6) are arranged in the heat exchange layer (203); the water inlet ends and water outlet ends of the plurality of heat exchange tubes (6) are both connected to a flow divider (7); a water inlet pipe (8) is connected to the flow divider (7) at the water inlet end of the heat exchange tube (6); a water outlet pipe (9) is connected to the flow divider (7) at the water outlet end of the heat exchange tube (6); and the water inlet pipe (8) and the water outlet pipe (9) both penetrate the heat exchange layer (203) of the closed cooling tower (2); A plurality of spoilers (10) are arranged in the heat exchange tube (6), the plurality of spoilers (10) are arranged in a spiral shape along the axial direction of the heat exchange tube (6), the shape of the spoiler (10) is trapezoidal, the wide side of the spoiler (10) is fixed to the inner wall of the heat exchange tube (6), the narrow side of the spoiler (10) faces the direction of fluid flow, and a plurality of spoiler holes (11) are opened on the spoiler (10).

2. A closed cooling tower with a heat exchange tube and a flow turbulence device according to claim 1, characterized in that: The water storage layer (201) is connected to a water injection pipe (3) and a drainage pipe (4), and a filler (5) is fixedly arranged in the filter layer (202).

3. A closed cooling tower with a heat exchange tube and a flow turbulence device according to claim 1, characterized in that: A plurality of spray pipes (16) are fixedly arranged in the spray layer (204), and a plurality of spray heads (17) are connected and arranged on the spray pipes (16).

4. A closed cooling tower with a heat exchange tube and a flow turbulence device according to claim 3, characterized in that: A pump (12) is fixedly arranged on the base (1); a water inlet end of the pump (12) is connected to a water pumping pipe (13); the water pumping pipe (13) is connected to the aquifer (201); a water outlet end of the pump (12) is connected to a connecting pipe (14); a three-way pipe (15) is connected to the connecting pipe (14); the three-way pipe (15) passes through the spray layer (204) and is connected to a plurality of spray pipes (16).

5. A closed cooling tower with a heat exchange tube and a turbulent device according to claim 1, characterized in that: A water-permeable membrane (18) is fixedly arranged inside the exhaust layer (205), and an exhaust pipe (19) is arranged in communication with the exhaust layer (205).

6. A closed cooling tower with a heat exchange tube and a turbulent device according to claim 5, characterized in that: A fixed bracket (20) is fixedly arranged in the exhaust pipe (19), an induced draft fan (21) is fixedly arranged in the fixed bracket (20), a dustproof filter (22) is arranged on the induced draft fan (21), and the dustproof filter (22) is fixedly arranged in the exhaust pipe (19).

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