A zero evaporation cooling tower

Abstract

The present invention relates to a zero evaporation cooling tower, comprising an air inlet duct, an outer enclosure duct and an exhaust duct which are sequentially connected and interconnected, and the outer enclosure duct and the exhaust duct are both located at the upper part of the air inlet duct, wherein the air inlet duct and the exhaust duct are both configured as a cylinder with openings at both ends, for realizing the inlet and outlet of cooling air; the outer enclosure duct is configured as a cylinder structure with openings at both ends, and a cooling water heat exchange mechanism is arranged inside the outer enclosure duct. By adopting the technology of the present invention, not only the purpose of rapid cooling and heat exchange is achieved, but also the purpose of zero evaporation of the amount of cooled water can be achieved, the functionality is strong, and it can be widely used in the field of heat exchange equipment technology.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange equipment, in particular to a zero evaporation cooling tower. Background Art

[0002] Cooling towers exist as a type of equipment that uses the exchange of cold and hot media to cool a specific cooling medium. They are widely used in thermal power plants, steel forging plants, and many other factories that require cooling, and they play a large role. For example, in the working process of a water-cooled cooling tower, the cooling of the water to be cooled is generally achieved by direct contact between the air supply and the water to be cooled for heat exchange. After the high-temperature water to be cooled is cooled down, the air supply contacts the water, and thus a portion of the water is taken away after the heat exchange, resulting in a certain loss of the water to be cooled during the cooling process.

[0003] Therefore, a cooling tower that can cool the water to be cooled and reduce the loss of the water to be cooled needs to be studied. Summary of the invention

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0005] A zero evaporation cooling tower comprises an air inlet cylinder, an outer enclosure cylinder and an air exhaust cylinder which are sequentially connected and interconnected, wherein the outer enclosure cylinder and the air exhaust cylinder are both located at the upper part of the air inlet cylinder, wherein:

[0006] The air inlet and exhaust ducts are both in the shape of a cylinder with openings at both ends, so as to allow cooling air to enter and exit;

[0007] The outer enclosure is a cylindrical structure with openings at both ends, and a cooling water heat exchange mechanism is provided inside the outer enclosure;

[0008] The heat exchange structure includes a main power air intake fan, a fin group, a bell mouth 1, a driven fan, an air intake connector, a fin 4, a pressure diffuser, a cooling fin tube, a speed expansion tube, an exhaust connector, a driven fan and a water collector and a water distributor respectively connected at both ends of the cooling fin tube, the water distributor is connected to a water supply main, the water collector is connected to a water return main, and the water supply main and the water return main both pass through an outer enclosure to the outside.

[0009] Furthermore, it also includes a compressor and a generator set located in the outer enclosure, wherein the compressor is used to provide a cold source, and the generator set is used to generate electricity to drive the compressor to operate.

[0010] Furthermore, the fin group includes fin one, fin two and fin three, and fin one, fin two and fin three each include an annular frame and a heat exchange tube arranged in a serpentine manner in the annular frame, and both ends of the heat exchange tube are respectively passed through the upper and lower ends of the annular frame.

[0011] Furthermore, the bell mouth is set to a conical structure with openings at both ends, and the fin group and the main power air intake fan are both clamped in the bell mouth; the pressure diffuser tube and the speed expander tube are both conical structures with openings at both ends, and the end with a larger diameter on the pressure diffuser tube is close to the bell mouth, and the end with a smaller diameter on the speed expander tube is close to the bell mouth; the two ends of the cooling fin tube are respectively connected and communicated with the pressure diffuser tube and the speed expander tube, and the cooling fin tube is set to a flat square hollow structure, and a number of cooling branch pipes placed in parallel are evenly distributed inside the cooling fin tube; the ends of the speed expander tube and the pressure diffuser tube respectively connected to the cooling fin tube are set to square interfaces for connecting to the square cooling fin tube.

[0012] Furthermore, a hollow columnar portion extends from the bell mouth at the end with a larger diameter.

[0013] Furthermore, the air inlet connector and the air exhaust connector are relatively arranged, are cylindrical in shape, and are provided with an edge portion folded vertically outward at one end of the cylindrical shape; the driven fan is clamped in the air inlet connector, and the driven fan is clamped in the exhaust connector.

[0014] Furthermore, the water distributor is provided with a water inlet connected to the water supply pipe at one end, and a water outlet connected to the cooling fin tube at the other end; the water collector is provided with a return water port connected to the cooling fin tube at the lower end, and a water outlet connected to the return water pipe at the upper end; the cooling branch pipes in the cooling fin tubes merge into a cooling inlet connected to the water distributor at one end, and merge into a cooling outlet connected to the water collector at the other end.

[0015] Furthermore, the air inlet duct includes a rectangular cylindrical portion and an arc-shaped bent portion extending outward from both ends of the rectangular cylindrical portion, and one end is bent upward and the other end is bent downward; the air exhaust duct includes a rectangular cylindrical portion and an arc-shaped bent portion extending upward from one end thereof, and the opening direction of the arc-shaped bent portion 1 is opposite to that of one of the arc-shaped bent portions 2; the outer enclosure is configured as a hollow rectangular shaped duct.

[0016] Furthermore, the outer circumference of the outer enclosure is consistent with the outer circumference of the exhaust cylinder; and the arc-shaped bending portion at one end of the air inlet cylinder is set as a semicircular structure.

[0017] Furthermore, the lower end surface of the outer enclosure tube passes through the center position of the semicircular arc-shaped bending portion 1.

[0018] After adopting the above structure, the present invention has the following advantages:

[0019] The structure provided by the present invention is used to cool the cooling water, and during the cooling process, the water to be cooled has no contact with the heat exchange air supply, which avoids the air supply taking away part of the water vapor during the discharge process, thereby avoiding the loss of the water to be cooled and achieving energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an external assembly structure diagram of an embodiment of the present invention;

[0021] Figure 2 is a perspective view of the internal structure of an embodiment of the present invention;

[0022] Figure 3 is an exploded schematic diagram of an embodiment of the present invention;

[0023] Figure 4 is a schematic structural diagram of fin 1 in an embodiment of the present invention;

[0024] Figure 5 is a schematic diagram of the structure of an exhaust duct in an embodiment of the present invention;

[0025] Figure 6 2 is a schematic diagram of the structure of the bell mouth 1 in an embodiment of the present invention;

[0026] Figure 7 is a schematic diagram of the structure of the air inlet duct in an embodiment of the present invention;

[0027] Figure 8 is a schematic diagram of the structure of a cooling fin tube in an embodiment of the present invention;

[0028] Fig. 9 is a schematic structural diagram of a water collector in an embodiment of the present invention;

[0029] Fig.10 is a schematic structural diagram of a generator set in an embodiment of the present invention;

[0030] Fig.11 Schematic diagram of the structure of the compressor in the embodiment of the present invention. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0032] Combined with Figures 1 to 11 A zero evaporation cooling tower comprises an air inlet cylinder 1, an outer enclosure cylinder 2 and an air exhaust cylinder 3 which are sequentially connected and interconnected, and the outer enclosure cylinder 2 and the air exhaust cylinder 3 are both located at the upper part of the air inlet cylinder 1, wherein:

[0033] The air inlet duct 1 and the air outlet duct 3 are both in the shape of a cylinder with openings at both ends, so as to allow the cooling air to enter and exit;

[0034] The outer enclosure 2 is a cylindrical structure with openings at both ends, and a cooling water heat exchange mechanism 4 is provided inside the outer enclosure 2;

[0035] The heat exchange structure 4 includes a main power air intake fan 41, a fin group 42, a bell mouth 43, a driven fan 44, an air intake connector 45, a fin 46, a pressure diffuser 47, a cooling fin tube 48, a speed expansion tube 49, an exhaust connector 410, a driven fan 411, and a water collector 412 and a water distributor 413 respectively connected at both ends of the cooling fin tube 48, the water distributor 413 is connected to a water supply pipe 71, the water collector 412 is connected to a return water pipe 72, and the water supply pipe 71 and the return water pipe 72 both pass through the outer enclosure 2 to the outside.

[0036] It also includes a compressor 91 and a generator set 92. The compressor 91 is used to provide a cold source, and the generator set 92 generates electricity and electrically drives the compressor 91 to operate.

[0037] The present invention improves the cooling tower structure in the prior art, thereby achieving the cooling effect on the water to be cooled while separating the water to be cooled from the cooling air supply, thereby avoiding the phenomenon of taking away a part of the water vapor during the discharge of the cooling air supply after heat exchange, and reducing the water loss of the water to be cooled.

[0038] When the device is used to cool the cooling water, the main power air intake fan 41 is started, and the low-temperature cooling air enters the interior of the device from the air inlet tube 1, and then further cools down after passing through the fin group 42 and the fin four 46, and then accelerates after being pressurized to a certain extent by the diffuser tube 47, and finally drives the driven fan 44 to rotate, so that the generator set 92 generates electricity, and the generated electricity drives the compressor 74 to run, outputs the cold source, and cools down the fin group 42; at this time, the hot water to be cooled from the outside enters the water distributor 413 from the water supply main 71, enters the cooling fin tube 48 through the water distributor 413 and is cooled by the cooling air, and the cooled water is collected by the water collector 412 and enters the return water main 72, and the cooled water is sent to the designated equipment through the return water main 72 to continue working.

[0039] When the low-temperature cooling air passes through the cooling fin tube 48, it will exchange heat with the cooling water inside the cooling fin tube 48 in a heat conduction manner, thereby taking away part of the heat of the water to be cooled. The supply air after the heat exchange is discharged through the exhaust duct 3, achieving the purpose of heat exchange without contact between the cold and hot media.

[0040] The driven fan 44 and the driven fan 411 arranged in front and back can improve the flow intensity of the air supply in the device and enhance the heat exchange effect. In terms of the arrangement of its structure, a disk with fan blades can be used.

[0041] The fin group 42 includes fin 1 421, fin 2 422 and fin 3 423, and fin 1 421, fin 2 422 and fin 3 433 each include an annular frame 42a and a heat exchange tube 42b arranged in a serpentine shape in the annular frame 42a, and both ends of the heat exchange tube 42b are respectively passed through the upper and lower ends of the annular frame 42a.

[0042] In the present application, the heat exchange tubes 42b in fin 1 421, fin 2 422 and fin 3 423 are arranged on the annular frame 42a according to different arrangement densities, and their two ends are respectively connected to the annular frame 42a, thereby realizing the mutual connection between the two.

[0043] The bell mouth 43 is configured as a conical structure with openings at both ends, and the fin group 42 and the main power air intake fan 41 are both clamped in the bell mouth 43; the pressure diffuser 47 and the speed expander 49 are both conical structures with openings at both ends, and the end with a larger diameter on the pressure diffuser 47 is close to the bell mouth 43, and the end with a smaller diameter on the speed expander 49 is close to the bell mouth 43; the two ends of the cooling fin tube 48 are respectively connected and communicated with the pressure diffuser 47 and the speed expander 49, and the cooling fin tube 48 is configured as a flat square hollow structure, and a plurality of cooling branch pipes placed in parallel are evenly distributed inside the cooling fin tube 48.

[0044] In order to achieve mutual clamping, the outer circumference of the fin group 42 is less than or equal to the inner circumference of the bell mouth 43, so as to achieve mutual connection; in order to make the connection more firm, it can be achieved by connecting screws and setting screw holes on the connecting surface.

[0045] One end of the speed expansion tube 49 and the pressure expansion tube 47 respectively connected to the cooling fin tube 48 is configured as a square interface for connecting to the square cooling fin tube 48 .

[0046] A plurality of connecting holes are provided at the square interface ends of the speed expansion tube 49 and the pressure expansion tube 47 for connecting with the cooling fin tube 48 .

[0047] A hollow columnar portion 431 extends from the bell mouth 1 43 and is located at the end with a larger diameter.

[0048] The air inlet connector 45 and the air exhaust connector 410 are arranged opposite to each other, are cylindrical in shape, and are provided with an edge portion folded vertically outward at one end of the cylindrical shape; the driven fan 44 is clamped in the air inlet connector 45, and the driven fan 411 is clamped in the exhaust connector 410.

[0049] The driven fan 44 and the driven fan 411 have the same structure, both of which are centrifugal structures, and are relatively easy to manufacture. In terms of the connection method, they can be specifically connected by connecting the end faces with connecting pins.

[0050] One end of the water distributor 413 is provided with a water inlet connected to the water supply pipe 71, and the other end is provided with a water outlet connected to the cooling fin tube 48; the lower end of the water collector 412 is provided with a return water port 412a connected to the cooling fin tube 48, and the upper end of the water collector 412 is provided with a water outlet 412b connected to the return water pipe 72; the cooling branch pipes in the cooling fin tube 48 merge into a cooling inlet connected to the water distributor 413 at one end, and merge into a cooling outlet connected to the water collector 412 at the other end.

[0051] Here, the function of the water distributor 413 is to transport and disperse the water to be cooled delivered from the water supply main pipe 71 to the inside of each branch pipe in the cooling fin tube 48. At this time, the cold air will be outside the cooling branch pipe, thereby achieving the purpose of lowering the water temperature to be cooled and carrying it away by the cold air through heat conduction and convection. Then, the cooled water will flow back to the collector 412 through each cooling branch pipe, and enter the return water main pipe 72 after being collected by the collector 412, thereby realizing the cooling process of the water.

[0052] The water distributor 413 and the water collector 412 are both provided with a plurality of parallel channels, which are used to realize the diversion of cooling water. Then, for the water distributor 413, a plurality of diversion parts with channels are provided at one end, and the other end is provided as the inlet of the main channel connected with the plurality of channels after merging. This water inlet is connected to the water supply main pipe 71, so as to realize the transportation and diversion of the water to be cooled. The water collector 412 adopts the method of providing a return port at the end opposite to the channel end to realize the recovery of the cooled water, and finally transports it to the recovery main pipe 72, and transports the cooled water to the device to be used for the cooling water through the return water main pipe 72.

[0053] The air inlet duct 1 includes a rectangular cylindrical portion 11 and an arc-shaped bent portion 12 extending outward from both ends of the rectangular cylindrical portion 11, and one end is bent upward and the other end is bent downward; the air exhaust duct 3 includes a rectangular cylindrical portion 31 and an arc-shaped bent portion 32 extending upward from one end thereof, and the opening direction of the arc-shaped bent portion 12 is opposite to that of one of the arc-shaped bent portions 32; the outer enclosure 2 is set to be a hollow rectangular parallelepiped.

[0054] The outer circumference of the outer enclosure 2 is consistent with the outer circumference of the exhaust cylinder 3; the arc-shaped bending portion 11 at one end of the air inlet cylinder 1 is set as a semicircular structure.

[0055] The lower end surface of the outer enclosure tube 2 passes through the center of the semicircular arc-shaped bending portion 11.

[0056] For the generator set 92 for generating electricity, its shape includes two cross-connected connecting rods and a magnetic induction coil 922 located at the end of the connecting rod. A transmission shaft 921 is provided at the cross position of the connecting rod. The transmission shaft 921 is axially connected to the driven fan 44. When the driven fan 44 is rotated by the wind, it will drive the transmission shaft 921 to rotate, thereby achieving the purpose of cutting the magnetic lines of force and further generating electricity.

Claims

1. A zero evaporation cooling tower, characterized in that: It comprises an air inlet duct, an outer enclosure duct and an exhaust duct which are connected in sequence and communicate with each other, the outer enclosure duct and the exhaust duct are both located at the upper part of the air inlet duct, wherein the air inlet duct and the exhaust duct are both configured as a cylinder with openings at both ends for realizing the inlet and outlet of cooling air; the outer enclosure duct is configured as a cylinder structure with openings at both ends, and a cooling water heat exchange mechanism is arranged inside the outer enclosure duct; the cooling water heat exchange mechanism comprises a main power air inlet fan, a fin group, a bell mouth one, a driven fan, an air inlet connector, a fin four, a pressure diffuser, a cooling fin tube, a speed expander, an exhaust connector, a driven fan and a water collector and a water distributor respectively connected at both ends of the cooling fin tube, the water distributor is connected to a water supply main pipe, the water collector is connected to a water return main pipe, and the water supply main pipe and the water return main pipe both pass through the outer enclosure duct to the outside; It also includes a compressor and a generator set located in the outer enclosure, wherein the compressor is used to provide a cold source, and the generator set is used to drive the compressor to operate with the generated electricity; The fin group includes fin 1, fin 2 and fin 3, and each of the fin 1, fin 2 and fin 3 includes an annular frame and a heat exchange tube arranged in a serpentine shape in the annular frame, and two ends of the heat exchange tube are respectively passed through the upper and lower ends of the annular frame; The bell mouth 1 is set as a conical structure with two ends open, and the fin group and the main power air intake fan are both clamped in the bell mouth 1; the pressure diffuser tube and the speed expander tube are both conical structures with two ends open, and the end with a larger diameter on the pressure diffuser tube is close to the bell mouth 1, and the end with a smaller diameter on the speed expander tube is close to the bell mouth 1; the two ends of the cooling fin tube are respectively connected and communicated with the pressure diffuser tube and the speed expander tube, and the cooling fin tube is set as a flat square hollow structure, and a plurality of cooling branch pipes placed in parallel are evenly distributed inside the cooling fin tube; the ends of the speed expander tube and the pressure diffuser tube respectively connected to the cooling fin tube are set as square interfaces for connecting with the square cooling fin tube; A hollow columnar portion extends from the bell mouth at the end with a larger diameter; The air inlet connector and the air exhaust connector are arranged opposite to each other, and are both cylindrical in shape, and are provided with an edge portion folded vertically outward at one end of the cylindrical shape; the driven fan is clamped in the air inlet connector, and the driven fan is clamped in the air exhaust connector; The water distributor is provided with a water inlet connected to the water supply pipe at one end, and a water outlet connected to the cooling finned tube at the other end; the water collector is provided with a return water port connected to the cooling finned tube at the lower end, and a water outlet connected to the return water pipe at the upper end; the cooling branch pipes in the cooling finned tubes are merged into a cooling inlet connected to the water distributor at one end, and merged into a cooling outlet connected to the water collector at the other end; The air inlet cylinder comprises a rectangular cylindrical portion 1 and an arc-shaped bending portion 1 extending outward from both ends of the rectangular cylindrical portion 1, and one end is bent upward and the other end is bent downward; the air exhaust cylinder comprises a rectangular cylindrical portion 2 and an arc-shaped bending portion 2 extending upward from one end thereof, and the arc-shaped bending portion 1 has an opening direction opposite to that of one of the arc-shaped bending portions 2; the outer enclosure is set to be a hollow rectangular parallelepiped; The outer circumference of the outer enclosure is consistent with the outer circumference of the exhaust cylinder; the arc-shaped bending portion at one end of the air inlet cylinder is set to a semicircular structure; The lower end surface of the outer enclosure tube passes through the center of the semicircular arc-shaped bending portion 1; For the generator set that generates electricity, its shape includes two cross-connected connecting rods and a magnetic induction coil located at the end of the connecting rod. A transmission shaft is provided at the intersection of the connecting rods, and the transmission shaft is connected to the driven fan. When the driven fan is rotated by the wind, it will drive the transmission shaft to rotate, thereby achieving the purpose of cutting the magnetic induction lines and then generating electricity.

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