Energy-saving fan of hydrodynamic cooling tower

Abstract

The utility model belongs to the field of cooling water systems, and discloses a hydrodynamic cooling tower energy-saving fan which comprises a supporting assembly, a fan hub rotationally arranged on the supporting assembly and a plurality of blades annularly distributed on the periphery of the supporting assembly. At least one blade is provided with a water inlet channel and a nozzle, the water inlet cavity, the water inlet channel and the nozzle are sequentially communicated, and the nozzle is configured in the mode that the nozzle sprays water in the circumferential direction to drive the blades of the energy-saving fan to rotate. The water inlet cavity, the water inlet channel, the nozzle and other structures are arranged, return water potential energy of cooling water passes through the water inlet cavity and the water inlet channel, water is sprayed through the nozzle to serve as power to drive the blades to rotate, and the water cooling device has the advantages of being simple in mechanism, zero in power consumption, small in size and light in weight.

Description

Technical Field

[0001] The utility model relates to the field of cooling water systems, in particular to an energy-saving fan of a water-powered cooling tower. Background Art

[0002] The cooling water system is a system that uses water to cool the process medium. It is currently widely used in production equipment in various industries. The key link for cooling the cooling water after heat exchange is to dissipate heat through the cooling tower. Due to the design margin or the installation of some systems at high levels, the return water pressure of the cooling water system is greater than the normal water distribution pressure required by the cooling tower. Therefore, using the potential energy of cooling water to drive the fan is a way to save energy and reduce consumption in the cooling water system.

[0003] In the current technology, there are two types of cooling tower fan drives, namely motor drive and turbine drive. Motor drive cooling tower fan requires electricity consumption, and a reducer must be installed, and the equipment is heavy. Turbine drive cooling tower fan has a complex structure, large size, and difficult maintenance;

[0004] In view of the above phenomenon, the applicant has designed a water-powered cooling tower energy-saving fan, which drives the cooling tower fan through the return water potential energy of cooling water. It has a simple structure, zero power consumption, small size and light weight. The water-powered cooling tower energy-saving fan can save energy and reduce emissions, reduce energy consumption, and recycle the return water potential energy, providing a solution for cooling water energy saving. Utility Model Content

[0005] The utility model aims to provide a water-powered cooling tower energy-saving fan to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A water-powered cooling tower energy-saving fan comprises a support assembly, a fan hub rotatably arranged on the support assembly, and a plurality of blades distributed around the support assembly, a water inlet cavity is connected to the support assembly and the fan hub, a water inlet channel and a nozzle are arranged on at least one blade, the water inlet cavity, the water inlet channel and the nozzle are connected in sequence, and the nozzle is configured as follows: the nozzle drives the blades of the energy-saving fan to rotate by spraying water in a circumferential direction.

[0008] Furthermore, water inlet channels and nozzles are arranged on all blades.

[0009] Furthermore, the nozzle is arranged at an end of the blade facing away from the fan hub.

[0010] Furthermore, a flow guide pipe is arranged on the blade, and the water inlet channel is a lumen of the flow guide pipe.

[0011] Furthermore, the support assembly includes a machine body, a bearing box arranged on the machine body, and a main shaft rotatably plugged into the bearing box, and the main shaft is connected to the fan hub.

[0012] Furthermore, the water inlet chamber includes a first flow channel arranged on the fan hub and a second flow channel arranged on the fan body.

[0013] Furthermore, a refueling hole is arranged on the machine body, and the refueling hole is used to supply lubricating oil to the bearing box.

[0014] Furthermore, sealing structures are arranged at both ends of the bearing box; the lower part of the fan hub is rotatably connected to the machine body, and a group of sealing rings are arranged between the lower part of the fan hub and the machine body.

[0015] Furthermore, the support assembly is cooperatively connected to a water inlet pipe.

[0016] Furthermore, the support assembly is cooperatively connected to a valve for controlling water inflow.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is provided with structures such as a water inlet chamber, a water inlet channel, and a nozzle, and utilizes the return water potential energy of the cooling water to pass through the water inlet chamber and the water inlet channel and spray water through the nozzle as power to drive the blades to rotate, and has the advantages of simple structure, zero power consumption, small size, and light weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the schematic diagrams of the structure of the utility model.

[0019] Figure 2 This is the second schematic diagram of the structure of the utility model.

[0020] In the figure: body 1, refueling hole 2, first flow channel 3, guide pipe 4, nozzle 5, blades 6, fan hub 7, main shaft 8, machine seal cover 9, mechanical seal 10, valve 11, sealing ring 12, water inlet pipe 13, bearing box 14, second flow channel 15. 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.

[0022] See also Figure 1 and Figure 2A water-powered cooling tower energy-saving fan comprises a supporting assembly, a fan hub 7 rotatably arranged on the supporting assembly, and a plurality of blades 6 evenly distributed around the supporting assembly. A water inlet cavity is connected to the supporting assembly and the fan hub 7, a water inlet channel and a nozzle 5 are arranged on at least one blade 6, the water inlet cavity, the water inlet channel and the nozzle 5 are connected in sequence, and the nozzle 5 drives the blades 6 of the energy-saving fan to rotate by spraying water in the circumferential direction.

[0023] It can be understood that in the above technical scheme, the utility model is provided with structures such as a water inlet chamber, a water inlet channel, and a nozzle 5, and utilizes the return water potential energy of the cooling water to pass through the water inlet chamber and the water inlet channel and spray water through the nozzle 5 as power to drive the blades 6 to rotate, which has the advantages of simple structure, zero power consumption, small size and light weight.

[0024] Continue reading Figure 2 In one embodiment of the utility model, water inlet channels and nozzles 5 are provided on all blades 6, the water inlet channels are provided along the length direction of the blades 6, the nozzles 5 are provided at the ends of the blades 6 facing away from the fan hub 7, and the directions of all nozzles 5 are consistent in the circumferential direction.

[0025] It should be noted that the number of blades 6 provided with water inlet channels and nozzles 5 in the fan and the location of the nozzles 5 on the blades 6 can be adjusted as needed. All nozzles 5 can be connected to form a circle, and the direction of the nozzles 5 is preferably tangential to the circle, or can be deflected.

[0026] Continue reading Figure 1 In one embodiment of the utility model, a guide tube 4 is provided at the upper end of the blade 6 , and the water inlet channel is the lumen of the guide tube 4 .

[0027] It can be understood that the guide tube 4 is directly disposed on the upper end of the blade 6 for easy maintenance.

[0028] In another embodiment, the water inlet channel may also be a channel inside the blade 6 .

[0029] Continue reading Figure 2 In one embodiment of the utility model, the support assembly includes a body 1, a bearing box 14 arranged in the body 1, and a main shaft 8 rotatably plugged into the bearing box 14, and the fan hub 7 is fixedly connected to the upper end of the main shaft 8.

[0030] Furthermore, in one embodiment of the utility model, the body 1 is a sleeve-shaped structure, the inner wall of which is fixedly connected to the outer wall of the bearing box 14, and the water inlet chamber includes a first flow channel 3 arranged on the fan hub 7 and a second flow channel 15 arranged on the body 1, and the second flow channel 15 is a cavity between the inner wall of the body 1 and the outer wall of the bearing box 14.

[0031] Among them, the first flow channel 3 is a petal-shaped structure corresponding to each water inlet channel one by one, which plays the role of flow diversion and drainage.

[0032] Continue reading Figure 2 In one embodiment of the utility model, a refueling hole 2 is provided on the machine body 1, and the refueling hole 2 is connected to the bearing, and lubricating oil is supplied to the bearing in the bearing box 14 through the refueling hole 2.

[0033] Continue reading Figure 2 In one embodiment of the utility model, sealing structures are provided at both ends of the bearing box 14, and the sealing structures play a role in preventing water leakage and oil leakage. Specifically, a lower end cover is provided at the lower end of the bearing box 14, and the main shaft 8 is located at the upper end of the lower end cover. A mechanical seal cover 9 is provided at the upper end of the bearing box 14, and a mechanical seal 10 is provided between the mechanical seal cover 9 and the outer wall of the main shaft 8. The mechanical seal 10 is a well-known shaft sealing technology and is not described in detail. The lower part of the fan hub 7 is rotatably connected to the body 1, and a group of sealing rings 12 are also provided between the lower part of the fan hub 7 and the body 1, and the sealing rings 12 play a role in preventing water leakage and pressure relief.

[0034] Continue reading Figure 1 and Figure 2 The lower end of the body 2 is connected to a water inlet pipe 13, and the water inlet pipe 13 is connected to the valve 11. The water inlet pipe 13 is preferably a curved pipe.

[0035] When the utility model is working, the valve 11 is opened, and water passes through the valve 11, the water inlet pipe 13, the water inlet cavity, the water inlet channel, and finally sprays out from the nozzle 5. The utility model uses the reaction force generated by the water spraying from the nozzle 5 to drive the blade 6 to rotate. The utility model controls the speed of the cooling tower fan by adjusting the opening of the valve 11.

[0036] Although 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 water-powered cooling tower energy-saving fan, comprising a support assembly, a fan hub (7) rotatably arranged on the support assembly, and a plurality of blades (6) arranged around the support assembly, characterized in that: A water inlet cavity is provided in communication with the support assembly and the fan hub (7), and a water inlet channel and a nozzle (5) are provided on at least one blade (6). The water inlet cavity, the water inlet channel and the nozzle (5) are connected in sequence, and the nozzle (5) is configured such that the nozzle (5) drives the blade (6) to rotate by spraying water in a circumferential direction.

2. A water-powered cooling tower energy-saving fan according to claim 1, characterized in that: All blades (6) are provided with water inlet channels and nozzles (5).

3. A water-powered cooling tower energy-saving fan according to claim 1, characterized in that: The nozzle (5) is arranged at an end of the blade (6) facing away from the fan hub (7).

4. A water-powered cooling tower energy-saving fan according to claim 1, characterized in that: A flow guide tube (4) is provided on the blade (6), and the water inlet channel is the lumen of the flow guide tube (4).

5. The water-powered cooling tower energy-saving fan according to claim 1, characterized in that: The support assembly comprises a machine body (1), a bearing box (14) arranged on the machine body (1), and a main shaft (8) rotatably plugged into the bearing box (14), wherein the main shaft (8) is connected to a fan hub (7).

6. A water-powered cooling tower energy-saving fan according to claim 5, characterized in that: The water inlet chamber comprises a first flow channel (3) arranged on the fan hub (7) and a second flow channel (15) arranged on the body (1).

7. A water-powered cooling tower energy-saving fan according to claim 5, characterized in that: The machine body (1) is provided with a refueling hole (2), and the refueling hole (2) is used to supply lubricating oil to the bearing box (14).

8. The water-powered cooling tower energy-saving fan according to claim 5, characterized in that: Sealing structures are provided at both ends of the bearing box (14); the lower part of the fan hub (7) is rotatably connected to the machine body (1), and a group of sealing rings (12) are provided between the lower part of the fan hub (7) and the machine body (1).

9. The water-powered cooling tower energy-saving fan according to claim 1, characterized in that: The support assembly is cooperatively connected to a water inlet pipe (13).

10. The water-powered cooling tower energy-saving fan according to claim 1, characterized in that: The support assembly is cooperatively connected to a valve (11) for controlling the amount of water inlet.

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