An active fan for a coal feeder motor

Abstract

The application provides an active fan for a coal feeder motor, comprising a water tank, an input end of a water pump connected to the water tank through a hose, a plurality of output ends of the water pump connected to a plurality of input ends of a fan cooling mechanism through a plurality of hoses, a plurality of output ends of the fan cooling mechanism connected to the water tank through a plurality of hoses respectively, and a water vapor recovery mechanism arranged on one side of the fan cooling mechanism, wherein a lower end of the water vapor recovery mechanism is arranged in the water tank, the application transports cooling water to an evaporative cooling unit, the cooling water is distributed in the whole evaporative cooling block under capillary action, preliminary cooling is realized, the cooling water in the evaporative cooling block is accelerated under the cooperation of two groups of fan units, a large amount of heat is taken away through evaporation, and the coal feeder motor is further cooled; meanwhile, the water pump and the fan are all selected from low-power equipment due to low water demand and low wind requirement, energy consumption is reduced, and a part of evaporated water vapor is recovered to the water tank through the water vapor recovery mechanism, and operation cost is further reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal-fired power generation equipment, in particular to an active fan for a coal feeder motor. BACKGROUND

[0002] There has been a problem of excessively high temperature in the operation of the coal feeder motor, and faults such as burning of the insulation of the coal feeder motor and burning of the bearings of the motor due to overheating often occur. Most of the existing solutions are in the aspect of maintenance, in order to prevent the occurrence of such faults, the use cycle of the bearings of the motor is shortened, that is, the bearings are replaced before the use life is reached, and methods such as increasing the spraying of the insulating paint of the stator coil after disassembly of the motor are adopted, which belong to excessive maintenance in terms of the degree of maintenance, and the faults caused by the high temperature of the coal feeder motor are passively prevented.

[0003] Such a way not only wastes manpower and material resources, but also greatly increases the cost of maintenance and repair due to excessive maintenance, and the machine is stopped frequently, which cannot meet the production demand. SUMMARY

[0004] In view of the above problems, the present application provides an active fan for a coal feeder motor, which aims to solve the technical problem of the excessively high temperature in the operation of the coal feeder motor and the frequent occurrence of faults such as burning of the insulation of the coal feeder motor and burning of the bearings of the motor due to overheating.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an active fan for a coal feeder motor, comprising a water tank, the water tank is connected to the input end of a water pump through a hose, the output end of the water pump is connected to the input end of a fan cooling mechanism through a plurality of hoses, the output end of the fan cooling mechanism is connected to the water tank through a hose, one side of the fan cooling mechanism is provided with a water vapor recovery mechanism, and the lower end of the water vapor recovery mechanism is arranged in the water tank.

[0006] Further, the fan cooling mechanism comprises a plurality of fan housings, the plurality of fan housings are connected through a plurality of bolts, a plurality of evaporative cooling units are symmetrically arranged in the plurality of fan housings, the two ends of the plurality of evaporative cooling units are connected through a plurality of bolts, and the plurality of evaporative cooling units are arranged on both sides of the coal feeder motor.

[0007] Further, one end of the fan housing is provided with a fan unit, the other end of the fan housing is provided with a flange ring, and the upper and lower surfaces of the fan housing are respectively provided with evaporative unit clamping openings.

[0008] Further, the fan unit comprises a fan mounting frame, and a plurality of cooling fans are arranged in the middle of the fan mounting frame.

[0009] Further, the evaporative cooling unit comprises an evaporative cooling block embedded in the middle of the evaporative support.

[0010] Further, the evaporative cooling block is made of wood pulp sponge, and a motor cooling arc surface is arranged on one side of the evaporative cooling block, and the other side of the evaporative cooling block is arranged in a streamline shape.

[0011] Further, a plurality of countersunk bolt holes are arranged at one end of the evaporative support, a plurality of hexagonal nut holes are arranged at the other end of the evaporative support, sealing half rings are arranged on the upper and lower surfaces of the evaporative support respectively, cooling water input interfaces are arranged on the top surface of the evaporative support and the two sides of the sealing half rings respectively, the plurality of cooling water input interfaces are connected to the water pump through a plurality of hoses respectively, cooling water output interfaces are arranged on the bottom surface of the evaporative support and the two sides of the sealing half rings respectively, and the plurality of cooling water output interfaces are connected to the water tank through a plurality of hoses respectively.

[0012] Further, the water vapor recovery mechanism comprises a plurality of water vapor blocking plates, recovery supports are symmetrically arranged on the two sides of the plurality of water vapor blocking plates, and one side of the plurality of recovery supports is arranged on one side of the fan cooling mechanism.

[0013] Further, the water vapor blocking plate is arranged in an inclined "human" shape, and water guide grooves are symmetrically arranged on the two sides of the lower part of the water vapor blocking plate.

[0014] Further, the other side of the recovery support is provided with a water collecting groove, and the lower end of the water collecting groove is arranged in the inside of the water tank.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] By conveying cooling water into the evaporative cooling unit, the cooling water is evenly distributed in the entire evaporative cooling block under the capillary action, heat exchange is performed between the motor cooling arc surface close to one side of the motor of the coal feeder and the motor to achieve preliminary cooling, the streamline type of the other side cooperates with the fan shell to form a streamline wind tunnel, the air flow rate in the wind tunnel is accelerated under the cooperation of the two fan units, the cooling water in the evaporative cooling block is accelerated, a large amount of heat is taken away by evaporation, the coal feeder motor is further cooled, and the cooling effect is good; at the same time, since the water demand is not high and the wind demand is not high, low-power devices are selected for the water pump and the fan, and the energy consumption is reduced; and part of the evaporated water vapor is recovered by the water vapor recovery mechanism and returned to the water tank, and the operation cost is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the appearance structure of the present application;

[0018] Figure 2 is an exploded schematic view of the fan cooling mechanism structure of the present application;

[0019] Figure 3 is the split schematic diagram of the fan shell structure of the present application;

[0020] Figure 4 is the schematic diagram of the evaporative cooling unit structure of the present application;

[0021] Figure 5 is the split schematic diagram of the evaporative cooling unit structure of the present application;

[0022] Figure 6 is the schematic diagram of the water vapor recovery mechanism structure of the present application;

[0023] Figure 7 is the schematic diagram of the water vapor blocking plate structure of the present application;

[0024] Figure 8 is the schematic diagram of the recovery bracket structure of the present application.

[0025] In the figure: 1, water tank; 2, water pump; 3, fan cooling mechanism; 31, fan shell; 311, fan unit; 3111, fan mounting bracket; 3112, cooling fan; 312, flange ring; 313, evaporative unit clamping ring; 32, evaporative cooling unit; 321, evaporative cooling block; 3211, motor cooling camber surface; 322, evaporative bracket; 3221, countersunk bolt hole; 3222, hexagonal nut hole; 3223, sealing half ring; 3224, cooling water input interface; 3225, cooling water output interface; 4, water vapor recovery mechanism; 41, water vapor blocking plate; 411, water guide groove; 42, recovery bracket; 421, water collecting groove. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given, but the present application can be realized in different forms and is not limited to the embodiments described herein, on the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, figures, and other references mentioned herein are incorporated by reference in their entirety for the teachings relevant to the sentence and / or paragraph in which the reference is presented.

[0029] Embodiment, please refer to Figure 1 An active fan for coal feeder motor, comprising a water tank 1, an input end of a water pump 2 is connected to the water tank 1 through a hose, a plurality of output ends of the water pump 2 are connected to a plurality of input ends of a fan cooling mechanism 3 through a plurality of hoses, a plurality of output ends of the fan cooling mechanism 3 are respectively connected to the water tank 1 through a hose, and a water vapor recovery mechanism 4 is arranged on one side of the fan cooling mechanism 3, and a lower end of the water vapor recovery mechanism 4 is arranged in the water tank 1.

[0030] Embodiment, please refer to Figure 2 The fan cooling mechanism 3 comprises a plurality of fan housings 31, the plurality of fan housings 31 are connected through a plurality of bolts, a plurality of evaporative cooling units 32 are symmetrically arranged in the plurality of fan housings 31, two ends of the plurality of evaporative cooling units 32 are respectively connected through a plurality of bolts, and the plurality of evaporative cooling units 32 are respectively arranged on both sides of the coal feeder motor. The two evaporative cooling units 32 are buckled on both sides of the coal feeder motor, the gap between the coal feeder motor and the evaporative cooling block 321 is filled with a filling strip of the same material, so that the contact is close, the plurality of bolts are connected closely, the two fan housings 31 are buckled together from the direction of the two ends of the two evaporative cooling units 32, and the plurality of bolts are connected closely, so as to form a wind tunnel.

[0031] Embodiment, please refer to Figure 3 One end of the fan housing 31 is provided with a fan unit 311, the other end of the fan housing 31 is provided with a flange ring 312, and the upper and lower surfaces of the fan housing 31 are respectively provided with evaporative unit embracing openings 313. The fan unit 311 comprises a fan mounting frame 3111, and a plurality of heat dissipation fans 3112 are arranged in the middle of the fan mounting frame 3111. The plurality of heat dissipation fans 3112 accelerate the air flow rate in the wind tunnel.

[0032] Embodiment, please refer to Figures 4-5The evaporative cooling unit 32 comprises an evaporative cooling block 321 embedded in the middle of an evaporative support 322, the material of the evaporative cooling block 321 is wood pulp sponge, one side of the evaporative cooling block 321 is provided with a motor cooling arc surface 3211, the other side of the evaporative cooling block 321 is provided in a streamline shape, one end of the evaporative support 322 is provided with a plurality of countersunk bolt holes 3221, the other end of the evaporative support 322 is provided with a plurality of hexagonal nut holes 3222, the upper and lower surfaces of the evaporative support 322 are respectively provided with sealing half rings 3223, the top surface of the evaporative support 322 and the two sides of the sealing half rings 3223 are respectively provided with cooling water input interfaces 3224, a plurality of cooling water input interfaces 3224 are respectively connected to the water pump 2 through a hose, the bottom surface of the evaporative support 322 and the two sides of the sealing half rings 3223 are respectively provided with cooling water output interfaces 3225, a plurality of cooling water output interfaces 3225 are respectively connected to the water tank 1 through a hose, this design inputs cooling water into the evaporative cooling block 321 through the cooling water input interface 3224, and the cooling water is distributed in the evaporative cooling block 321 under the capillary action of the wood pulp sponge material, is closely attached to one side of the coal feeder motor, and exchanges heat through the cooling water, so that the coal feeder motor is preliminarily cooled; the other side of the two evaporative cooling blocks 321 in a streamline shape cooperates with the fan shell 31 to form a streamlined wind tunnel, one group of the two fan units 311 sends air inwards, and the other group of the two fan units 311 discharges air outwards, so that the air flow speed in the wind tunnel is accelerated, thereby accelerating the evaporation speed of the cooling water on the evaporative cooling block 321, a large amount of evaporation carries away a large amount of heat, and the coal feeder motor is further cooled.

[0033] Embodiment, please refer to Figure 6 The water vapor recovery mechanism 4 comprises a plurality of water vapor blocking plates 41, the two sides of the plurality of water vapor blocking plates 41 are symmetrically provided with recovery supports 42, and one side of the plurality of recovery supports 42 is arranged on one side of the fan cooling mechanism 3, this design blocks water vapor in the evaporation water vapor output direction through the plurality of water vapor blocking plates 41, so that part of the water vapor condenses on the inner side of the water vapor blocking plate 41, thereby recovering part of the cooling water and reducing the consumption of the cooling water.

[0034] Embodiment, please refer to Figure 7 The water vapor blocking plate 41 is arranged in an inclined "human" shape, and the lower two sides of the water vapor blocking plate 41 are symmetrically provided with water guide grooves 411, this design facilitates the flow of condensed water droplets into the water guide grooves 411 on the lower two sides through the inclined "human" shape.

[0035] Embodiment, please refer to Figure 8The other side of the recovery support 42 is provided with a water collecting groove 421, the lower end of the water collecting groove 421 is arranged in the interior of the water tank 1, the design connects multiple water guide grooves 411 through the water collecting groove 421, and the flowing cooling water is guided into the water tank 1.

[0036] Principle of operation: first, the two evaporative cooling units 32 are buckled on both sides of the coal feeder motor, the gap between the coal feeder motor and the evaporative cooling block 321 is filled with the filling strip of the same material, so that the contact is close, and the multiple bolts are connected tightly, then the two fan housings 31 are buckled together from the direction of the two ends of the two evaporative cooling units 32, and are connected tightly through multiple bolts, thereby forming a wind tunnel; the water pump 2 takes water from the water tank, inputs cooling water into the evaporative cooling block 321 through the cooling water input interface 3224, and makes the cooling water spread in the evaporative cooling block 321 under the capillary action of the wood pulp sponge material, tightly adheres to the side of the coal feeder motor to exchange heat through the cooling water, and realizes the preliminary cooling of the coal feeder motor; through the other side of the two evaporative cooling blocks 321 in the form of streamline, cooperate with the fan housing 31 to form a streamlined wind tunnel, one group of the two fan units 311 sends air inward, and the other group of the two fan units 311 exhausts air outward, accelerates the air flow rate in the wind tunnel, thereby accelerating the evaporation speed of the cooling water on the evaporative cooling block 321, a large amount of evaporation takes away a large amount of heat, thereby further cooling the coal feeder motor; the excess cooling water returns to the water tank 1 through the cooling water output interface 3225; the water vapor is blocked in the evaporation water vapor output direction by the multiple water vapor blocking plates 41, part of the water vapor condenses on the inner side of the water vapor blocking plate 41, the water droplets are inclined to flow into the two water guide grooves 411 on the lower side through the "human" shape, and the cooling water flowing down is guided into the water tank 1 through the water collecting groove 421 connecting multiple water guide grooves 411, thereby recovering part of the cooling water and reducing the consumption of the cooling water.

[0037] The above describes the application by way of example with reference to the drawings. Obviously, the specific implementation of the application is not limited to the above manner, as long as the method concept and technical solution of the application are adopted for such non-essential improvement, or the concept and technical solution of the application are directly applied to other occasions without improvement, all of which are within the protection scope of the application.

Claims

1. An active fan for a coal feeder motor comprising a water tank (1) characterized by: The water tank (1) is connected with the input end of the water pump (2) through a hose, the output end of the water pump (2) is connected with multiple input ends of the fan cooling mechanism (3) through multiple hoses, multiple output ends of the fan cooling mechanism (3) are respectively connected with the water tank (1) through hoses, one side of the fan cooling mechanism (3) is provided with the water vapor recovery mechanism (4), and the lower end of the water vapor recovery mechanism (4) is arranged in the water tank (1). The fan cooling mechanism (3) comprises multiple fan housings (31), the multiple fan housings (31) are connected through multiple bolts, multiple evaporation cooling units (32) are symmetrically arranged in the multiple fan housings (31), and two ends of each evaporation cooling unit (32) are connected through multiple bolts. One end of the fan housing (31) is provided with a fan unit (311), the other end of the fan housing (31) is provided with a flange ring (312), and the upper and lower surfaces of the fan housing (31) are respectively provided with evaporation unit clamping openings (313). The evaporation cooling unit (32) comprises an evaporation cooling block (321), and the evaporation cooling block (321) is embedded in the middle of an evaporation support (322). The water vapor recovery mechanism (4) comprises multiple water vapor blocking plates (41), recovery supports (42) are symmetrically arranged on the two sides of the multiple water vapor blocking plates (41), and one side of each recovery support (42) is arranged on one side of the fan cooling mechanism (3). The other side of the recovery support (42) is provided with a water collecting tank (421), and the lower end of the water collecting tank (421) is arranged in the water tank (1).

2. An active fan for a coal feeder motor as claimed in claim 1, characterised in that: The fan unit (311) comprises a fan mounting frame (3111), and multiple cooling fans (3112) are arranged in the middle of the fan mounting frame (3111).

3. An active fan for a coal feeder motor as claimed in claim 1, wherein: The evaporation cooling block (321) is made of wood pulp sponge, a motor cooling arc surface (3211) is formed in one side of the evaporation cooling block (321), and the other side of the evaporation cooling block (321) is in a streamline shape.

4. An active fan for a coal feeder motor as claimed in claim 1, wherein: One end of the evaporation support (322) is provided with multiple countersunk bolt holes (3221), the other end of the evaporation support (322) is provided with multiple hexagon nut holes (3222), sealing half rings (3223) are arranged on the upper and lower surfaces of the evaporation support (322), cooling water input interfaces (3224) are arranged on the top surface of the evaporation support (322) and the two sides of the sealing half rings (3223), multiple cooling water input interfaces (3224) are respectively connected with the water pump (2) through hoses, cooling water output interfaces (3225) are arranged on the bottom surface of the evaporation support (322) and the two sides of the sealing half rings (3223), and multiple cooling water output interfaces (3225) are respectively connected with the water tank (1) through hoses.

5. An active fan for a coal feeder motor as claimed in claim 4 wherein: The water vapor blocking plate (41) is arranged in an inclined "human" shape, and water guide grooves (411) are symmetrically arranged on the two sides of the lower part of the water vapor blocking plate (41).

Images