CN217465421U

CN217465421U - Cooling tower fan with frequency conversion and soft start functions

Info

Publication number: CN217465421U
Application number: CN202220099961.2U
Authority: CN
Inventors: 陈大伟; 郝正印; 郑思文; 张要
Original assignee: Anhui Haoyuan Chemical Industry Group Co ltd
Current assignee: Anhui Haoyuan Chemical Industry Group Co ltd
Priority date: 2022-01-15
Filing date: 2022-01-15
Publication date: 2022-09-20
Anticipated expiration: 2032-01-15

Abstract

The utility model discloses a cooling tower fan with frequency conversion and soft start function, including getter device and installation device, the installation device sets up at the middle part of getter device, the getter device includes exhaust mechanism and cooling body, the middle part of exhaust mechanism is provided with cooling body, one side of exhaust mechanism is provided with drive arrangement, exhaust mechanism is connected with the drive arrangement transmission, and the inside cooling water of spiral pipe can absorb the heat of the coolant liquid in the center pin, improves its effect to the center pin cooling, and the center pin absorbs the heat of connecting the bearing, and then improves the stability of connecting the bearing, improves the life of connecting bearing and center pin; the intensity of center pin can be improved to a plurality of triangular sand grips of the inner wall fixed connection of center pin, improves the area of contact of center pin inner wall and coolant liquid, improves the radiating effect, can play the effect of stirring the inside coolant liquid of center pin moreover, makes the temperature of coolant liquid more balanced.

Description

Cooling tower fan with frequency conversion and soft start functions

Technical Field

The utility model belongs to the technical field of the fan, concretely relates to cooling tower fan with frequency conversion and soft start function.

Background

The water cooling tower is a structure for cooling water, is common in factories such as power plants, chemical plants and cement plants which need large amount of water temperature control, is a structure for saving water and recycling water according to the calculation of heat exchange amount, and has the working principle that: utilize the fan to form the convection current with the water that spills from the top of the tower from the air intake at the bottom of the tower, remove the heat source, the fan is the indispensable constitutional part of cooling tower, the fan that current cooling tower used, its self heat dispersion is not good, because the fan is in the high temperature humid environment for a long time at the top of the tower, and self rotates for a long time and produces the heat, lead to the temperature of its axial region and bearing higher, and be in pivot and bearing under the high temperature state for a long time, not only the stability of operation descends to some extent, and its life also can receive the influence.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cooling tower fan with frequency conversion and soft start function to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cooling tower fan with frequency conversion and soft start function, includes getter device and installation device, the installation device sets up the middle part at getter device, getter device includes exhaust mechanism and cooling body, exhaust mechanism's middle part is provided with cooling body, one side of exhaust mechanism is provided with drive arrangement, exhaust mechanism is connected with drive arrangement transmission.

Preferably, the exhaust mechanism includes center pin and blade, the center pin is hollow shell structure, the top fixedly connected with blade of center pin, the blade has a plurality of, and a plurality of the blade distributes around the axis equidistance of center pin, the fixed cover in bottom of center pin is equipped with first band pulley.

Preferably, the inner wall fixedly connected with triangular convex strip of center pin, triangular convex strip has a plurality of, and a plurality of triangular convex strip distributes around the axis equidistance of center pin.

Preferably, cooling body includes house steward, spiral pipe and closure plate, the spiral pipe sets up the inside at the center pin, the fixed cover of one end of house steward is equipped with sealed bearing, sealed bearing inlays the middle part of establishing at the closure plate, closure plate fixed connection is in the bottom of center pin, the inside of house steward is provided with feed liquor pipe and drain pipe, the one end fixedly connected with closing plate of house steward inner wall, the closing plate is all run through to the one end of feed liquor pipe and the one end of drain pipe, just the one end of feed liquor pipe and the one end of drain pipe communicate with the both ends of spiral pipe are fixed respectively.

Preferably, the outer wall of the main pipe is provided with a heat insulation layer, and the heat insulation layer is made of glass fiber.

Preferably, the mounting device comprises a connecting frame and a mounting sleeve, the middle of the connecting frame is fixedly connected with the mounting sleeve, and the mounting sleeve is symmetrically provided with connecting bearings, two of which are fixedly sleeved on the outer wall of the central shaft.

Preferably, the driving device comprises a speed reducer and a second belt wheel, the output end of the speed reducer is fixedly connected with the second belt wheel, a belt is arranged in the middle of the second belt wheel, the second belt wheel is in transmission connection with the first belt wheel through the belt, a motor is fixedly connected to one side of the speed reducer, and the output shaft of the motor is fixedly connected with the input end of the speed reducer.

Preferably, the motor is connected with a control box through a wire, and the motor is electrically connected with an external power supply through the control box.

Compared with the prior art, the beneficial effects of the utility model are that: the cooling water in the spiral pipe can absorb the heat of the cooling liquid in the central shaft, so that the cooling liquid in the central shaft can be cooled in time, the effect of cooling the central shaft is improved, the central shaft absorbs the heat of the connecting bearing, the stability of the connecting bearing is improved, and the service life of the connecting bearing and the central shaft is prolonged; the intensity of center pin can be improved to a plurality of triangular sand grips of the inner wall fixed connection of center pin, improves the area of contact of center pin inner wall and coolant liquid, improves the radiating effect, can play the effect of stirring the inside coolant liquid of center pin moreover, makes the temperature of coolant liquid more balanced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic perspective view of the air suction device of the present invention;

FIG. 3 is a front sectional view of the air suction device of the present invention;

fig. 4 is a schematic structural view of part a of the present invention;

fig. 5 is a schematic view of the three-dimensional structure of the air exhaust mechanism of the present invention.

In the figure: 1. a suction device; 11. an air exhaust mechanism; 111. a central shaft; 112. a blade; 113. triangular convex strips; 114. a first pulley; 12. a cooling mechanism; 121. a header pipe; 122. a spiral tube; 123. a blocking plate; 124. sealing the bearing; 125. a liquid inlet pipe; 126. a liquid outlet pipe; 127. a sealing plate; 128. a thermal insulation layer; 2. a mounting device; 21. a connecting frame; 22. installing a sleeve; 23. connecting a bearing; 3. a drive device; 31. a speed reducer; 32. a second pulley; 33. a belt; 34. a motor; 35. and a control box.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions: the utility model provides a cooling tower fan with frequency conversion and soft start function, includes getter device 1 and installation device 2, and installation device 2 sets up in the middle part of getter device 1, and getter device 1 includes exhaust mechanism 11 and cooling body 12, and the middle part of exhaust mechanism 11 is provided with cooling body 12, and one side of exhaust mechanism 11 is provided with drive arrangement 3, and exhaust mechanism 11 is connected with drive arrangement 3 transmission.

Preferably, the exhaust mechanism 11 includes a central shaft 111 and blades 112, the central shaft 111 is a hollow shell structure, the blades 112 are fixedly connected to the top of the central shaft 111, the blades 112 are several, and the several blades 112 are equidistantly distributed around the axis of the central shaft 111, the bottom of the central shaft 111 is fixedly sleeved with a first pulley 114, the central shaft 111 rotates under the driving of the driving device 3, the blades 112 on the central shaft 111 rotate together, external air is sucked into the cooling tower from the bottom of the cooling tower, and the water in the tower is cooled in the process of conducting the air upwards.

Preferably, the inner wall of the central shaft 111 is fixedly connected with the triangular convex strips 113, the triangular convex strips 113 are provided with a plurality of triangular convex strips 113, and the plurality of triangular convex strips 113 are equidistantly distributed around the axis of the central shaft 111, so that the strength of the central shaft 111 is improved, the contact area between the inner wall of the central shaft 111 and the cooling liquid is improved, the heat dissipation effect is improved, the effect of stirring the cooling liquid in the central shaft 111 can be achieved, and the temperature of the cooling liquid is more balanced.

Preferably, the cooling mechanism 12 includes a header 121, a spiral pipe 122 and a blocking plate 123, the spiral pipe 122 is disposed inside the central shaft 111, a sealing bearing 124 is fixedly sleeved at one end of the header 121, the sealing bearing 124 is embedded in the middle of the blocking plate 123, the blocking plate 123 is fixedly connected to the bottom end of the central shaft 111, a liquid inlet pipe 125 and a liquid outlet pipe 126 are disposed inside the header 121, a sealing plate 127 is fixedly connected to one end of the inner wall of the header 121, one end of the liquid inlet pipe 125 and one end of the liquid outlet pipe 126 penetrate through the sealing plate 127, and one end of the liquid inlet pipe 125 and one end of the liquid outlet pipe 126 are respectively fixedly communicated with two ends of the spiral pipe 122.

Preferably, the outer wall of the main pipe 121 is provided with a heat insulation layer 128, and the heat insulation layer 128 is made of glass fiber, so as to reduce the influence of the hot steam on the cooling water conveyed inside the liquid inlet pipe 125.

Preferably, the mounting device 2 includes the link 21 and the installation sleeve 22, and the middle part fixedly connected with installation sleeve 22 of link 21, the inside symmetry of installation sleeve 22 is provided with connecting bearing 23, and two connecting bearing 23 are all fixed the cover and are established at the outer wall of center pin 111, during the use, with link 21 fixed connection in the top port department of cooling tower to with getter device 1 integral erection on cooling tower.

Preferably, the driving device 3 includes a speed reducer 31 and a second belt wheel 32, the output end of the speed reducer 31 is fixedly connected with the second belt wheel 32, the middle part of the second belt wheel 32 is provided with a belt 33, the second belt wheel 32 is in transmission connection with the first belt wheel 114 through the belt 33, one side of the speed reducer 31 is fixedly connected with a motor 34, the output shaft of the motor 34 is fixedly connected with the input end of the speed reducer 31, the motor 34 drives the second belt wheel 32 to rotate through the speed reducer 31 during use, the second belt wheel 32 drives the first belt wheel 114 to rotate through the belt 33, and then the exhaust mechanism 11 is driven to integrally rotate.

Preferably, the motor 34 is connected with the control box 35 through a wire, the motor 34 is electrically connected with an external power supply through the control box 35, a frequency converter, a soft starter, a change-over switch and a starting switch are installed inside the control box 35, the frequency converter and the soft starter are connected in parallel and then connected in series with the change-over switch and the starting switch, the frequency converter or the soft starter is selectively connected with the motor 34 through the change-over switch during use, and then the frequency conversion or the soft starting function of the motor 34 is realized.

The utility model discloses a theory of operation and use flow: after the utility model is installed, firstly, the installation fixing and the safety protection of the utility model are checked, then the utility model can be used, the connecting frame 21 is fixedly connected at the top port of the cooling tower, thereby the whole getter device 1 is installed on the cooling tower, before the use, the cooling liquid is injected into the inside of the central shaft 111, when the utility model is used, the control box 35 is used to start the motor 34, the motor 34 drives the second belt wheel 32 to rotate through the reducer 31, the second belt wheel 32 drives the first belt wheel 114 to rotate through the belt 33, and further drives the whole exhaust mechanism 11 to rotate, the external air is sucked into the inside of the cooling tower from the bottom of the cooling tower, the water in the tower is cooled in the process of upward conduction of the air, the inner wall of the central shaft 111 is fixedly connected with a plurality of triangular convex strips 113, the intensity of the central shaft 111 can be improved, the contact area between the inner wall of the central shaft 111 and the cooling liquid is improved, the heat dissipation effect is improved, the effect of stirring the cooling liquid in the central shaft 111 can be achieved, the temperature of the cooling liquid is more balanced, cooling water is injected into the spiral pipe 122 through the liquid inlet pipe 125 in the use process, the cooling water absorbs the heat of the cooling liquid in the central shaft 111, the cooling liquid in the central shaft 111 can be timely cooled, the effect of cooling the central shaft 111 is improved, the central shaft 111 can absorb the heat of the connecting bearing 23, the temperature of the connecting bearing 23 in the operation process is reduced, the connecting bearing 23 is more stable, the service life is longer, the heat insulation layer 128 arranged on the outer wall of the header pipe 121 can reduce the influence of hot steam on the cooling water conveyed in the liquid inlet pipe 125, the frequency converter, the soft starter, the change-over switch and the starting switch are arranged in the control box 35, the frequency converter and the soft starter are connected in parallel and then connected in series with the change-over switch and the starting switch, when the frequency converter or the soft starter is used, the frequency converter or the soft starter is selectively connected with the motor 34 through the change-over switch, and the frequency conversion or the soft start function of the motor 34 is further realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cooling tower fan with frequency conversion and soft start function, includes getter device (1) and installation device (2), its characterized in that: the air suction device is characterized in that the mounting device (2) is arranged in the middle of the air suction device (1), the air suction device (1) comprises an air exhaust mechanism (11) and a cooling mechanism (12), the cooling mechanism (12) is arranged in the middle of the air exhaust mechanism (11), a driving device (3) is arranged on one side of the air exhaust mechanism (11), and the air exhaust mechanism (11) is in transmission connection with the driving device (3).

2. The cooling tower fan with the frequency conversion and soft start functions as claimed in claim 1, wherein: exhaust mechanism (11) include center pin (111) and blade (112), center pin (111) are hollow shell structure, the top fixedly connected with blade (112) of center pin (111), blade (112) have a plurality of, and a plurality of blade (112) distribute around the axis equidistance of center pin (111), the fixed cover in bottom of center pin (111) is equipped with first band pulley (114).

3. The cooling tower fan with the frequency conversion and soft start functions as claimed in claim 2, wherein: the inner wall fixedly connected with triangular convex strip (113) of center pin (111), triangular convex strip (113) have a plurality of, and a plurality of triangular convex strip (113) distribute around the axis equidistance of center pin (111).

4. The cooling tower fan with the frequency conversion and soft start functions as claimed in claim 2, wherein: cooling body (12) include house steward (121), spiral pipe (122) and closure plate (123), spiral pipe (122) set up in the inside of center pin (111), the fixed cover of one end of house steward (121) is equipped with sealed bearing (124), sealed bearing (124) are inlayed and are established in the middle part of closure plate (123), closure plate (123) fixed connection is in the bottom of center pin (111), the inside of house steward (121) is provided with feed liquor pipe (125) and drain pipe (126), the one end fixedly connected with closing plate (127) of house steward (121) inner wall, the one end of feed liquor pipe (125) and the one end of drain pipe (126) all run through closing plate (127), just the one end of feed liquor pipe (125) and the one end of drain pipe (126) respectively with the both ends fixed intercommunication of spiral pipe (122).

5. The cooling tower fan with frequency conversion and soft start functions as claimed in claim 4, wherein: the outer wall of the main pipe (121) is provided with a heat insulation layer (128), and the heat insulation layer (128) is made of glass fiber.

6. The cooling tower fan with the frequency conversion and soft start functions as claimed in claim 2, wherein: installation device (2) include link (21) and installation sleeve (22), the middle part fixedly connected with installation sleeve (22) of link (21), the inside symmetry of installation sleeve (22) is provided with connecting bearing (23), two the outer wall at center pin (111) is established to the equal fixed cover of connecting bearing (23).

7. The cooling tower fan with frequency conversion and soft start functions as claimed in claim 6, wherein: drive arrangement (3) are including reduction gear (31) and second band pulley (32), output fixedly connected with second band pulley (32) of reduction gear (31), the middle part of second band pulley (32) is provided with belt (33), second band pulley (32) are connected with first band pulley (114) transmission through belt (33), one side fixedly connected with motor (34) of reduction gear (31), the output shaft of motor (34) and the input fixed connection of reduction gear (31).

8. The cooling tower fan with frequency conversion and soft start functions as claimed in claim 7, wherein: the motor (34) is connected with a control box (35) through a wire, and the motor (34) is electrically connected with an external power supply through the control box (35).