Motor cooling device for induced draft fan for cold starting boiler

Abstract

The utility model relates to the technical field of motor cooling, in particular to a motor cooling device for an induced draft fan for a cold starting boiler. According to the technical scheme, the cooling device comprises a base, a fan shell and a supporting table are fixedly arranged at the top of the base, an air inlet pipe is fixedly arranged on one side of the fan shell, an exhaust pipe is fixedly arranged outside the fan shell, a first driving motor is fixedly arranged at the top of the supporting table, and a water cooling structure used for cooling is arranged on one side of the supporting table. The water cooling structure comprises a liquid storage tank used for storing cooling liquid, a water pump used for conveying and a coiled pipe used for circulation, and a transverse plate is fixedly arranged at the bottom of the liquid storage tank. And the coiled pipe is attached to the surface of the first driving motor so that heat of the first driving motor can be taken away, the cooling effect of the equipment can be optimized in combination with a natural air cooling mode, and the cooling efficiency of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor cooling technology, and in particular to a motor cooling device for an induced draft fan used in a cold-start boiler. Background Technology

[0002] When starting a boiler from a cold state, the induced draft fan is the first to start, and its main function is to establish the ventilation system. By running the induced draft fan, air is drawn out of the furnace and flue, creating negative pressure, which creates conditions for subsequent operations such as air supply and fuel supply, ensuring that the fuel can burn in a suitable air environment. The motor generates a lot of heat during operation. If it cannot be dissipated in a timely and effective manner, the motor temperature will become too high, which will affect the motor's performance and service life, and in severe cases, may even cause motor failure and production interruption.

[0003] Typically, an aluminum casing is installed outside the motor of an induced draft fan, and heat dissipation fins are installed on the outer surface of the casing. The heat dissipation fins are exposed to the outside, which can achieve heat dissipation and cooling by natural air cooling. However, due to the continuous operation of the motor, the heat cannot be completely dissipated through the heat dissipation fins, which reduces the cooling efficiency. In view of the above reasons, this application proposes a motor cooling device for an induced draft fan used in a cold start boiler. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a motor cooling device for an induced draft fan used in a cold-start boiler.

[0005] The technical solution of this utility model is as follows: a motor cooling device for an induced draft fan of a cold-start boiler, including a base, a fan housing and a support platform fixedly provided on the top of the base, an air inlet pipe fixedly provided on one side of the fan housing, an exhaust pipe fixedly provided on the outside of the fan housing, a drive motor fixedly provided on the top of the support platform, and a water cooling structure for cooling on one side of the support platform.

[0006] The water-cooling structure includes a storage tank for storing coolant, a water pump for conveying coolant, and a serpentine tube for circulation. A horizontal plate is fixedly provided at the bottom of the storage tank. The horizontal plate is fixedly connected to one side of the support platform, and the water pump is fixedly connected to the top of the support platform.

[0007] Optionally, the water pump is provided with a pumping pipe and an outlet pipe at both ends. One end of the outlet pipe is fixedly connected to the end of the serpentine tube away from the storage tank. The pumping pipe is fixedly connected to one side of the storage tank. A drain pipe is fixedly provided at the end of the serpentine tube near the storage tank. The other end of the drain pipe is fixedly connected to the top of the storage tank.

[0008] Optionally, the top of the liquid storage tank is provided with multiple heat dissipation holes, a filter screen is provided inside the heat dissipation holes, an injection pipe is fixedly provided on the top of the liquid storage tank, and a stirring assembly is provided inside the liquid storage tank.

[0009] Optionally, the stirring assembly includes a second drive motor for driving, a rotating shaft fixedly provided at the output end of the second drive motor, an internal thread block movably provided on the rotating shaft, a first stirring plate fixedly provided on both sides of the internal thread block, and two sets of second stirring plates fixedly provided on the rotating shaft.

[0010] Optionally, a mounting plate is fixedly provided at the bottom of the second drive motor, one side of the mounting plate is fixedly connected to the horizontal plate, and a cooling fan blade is fixedly provided on the rotating shaft.

[0011] Optionally, the surface of the rotating shaft is provided with a reciprocating thread, and the internal thread block is movably connected to the reciprocating thread.

[0012] Optionally, connecting plates are fixedly provided on both sides of the internal threaded block, the stirring plate is fixedly connected to the connecting plates, a sliding rod is movably provided on the connecting plates, and the sliding rod is fixedly connected to the inner wall of the liquid storage tank.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] This invention utilizes a liquid storage tank, a water pump, and a serpentine tube. The water pump draws out coolant and directs it into the serpentine tube. The serpentine tube adheres to the surface of the drive motor, carrying away heat from the drive motor. Combined with natural air cooling, this design optimizes the cooling effect and improves the cooling efficiency of the equipment.

[0015] Furthermore, through the configuration of drive motor 2, rotating shaft, cooling fan blades, stirring plate 1, stirring plate 2, and internal thread block, the cooling fan blades can dissipate heat from the liquid storage tank. The internal thread block moves back and forth on the rotating shaft, and the internal thread block drives two sets of stirring plates 1. The cooperation of stirring plate 1 and stirring plate 2 can achieve multi-directional stirring of the coolant, thereby improving the heat dissipation speed of the coolant, ensuring that the coolant is in a low temperature state, and improving the overall cooling effect of the equipment. Attached Figure Description

[0016] Figure 1 A first-view perspective three-dimensional structural diagram of the present invention is provided;

[0017] Figure 2 A second-view three-dimensional structural diagram of the present invention is provided;

[0018] Figure 3 This is a three-dimensional schematic diagram of the water-cooled structure;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the stirring assembly.

[0020] Figure label:

[0021] 1. Base;

[0022] 2. Fan casing;

[0023] 3. Support platform;

[0024] 4. Drive motor one;

[0025] 5. Air intake pipe;

[0026] 6. Exhaust pipe;

[0027] 7. Water-cooled structure; 701. Liquid storage tank; 702. Water pump; 703. Water outlet pipe; 704. Serpentine pipe; 705. Drain pipe; 706. Heat dissipation holes; 707. Liquid injection pipe;

[0028] 8. Stirring assembly; 801. Mounting plate; 802. Drive motor II; 803. Rotating shaft; 804. Reciprocating thread; 805. Internal thread block; 806. Connecting plate; 807. Slide rod; 808. Stirring plate I; 809. Stirring plate II; 810. Cooling fan blades. Detailed Implementation

[0029] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.

[0030] The components of the embodiments of this disclosure, which are typically described and shown in the accompanying drawings, can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of embodiments of this disclosure provided in the drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure.

[0031] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0032] In the description of this disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0033] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0034] Example 1

[0035] like Figures 1-3 As shown, the present invention proposes a motor cooling device for a cold-start boiler induced draft fan, including a base 1, a fan housing 2 and a support platform 3 fixedly mounted on the top of the base 1, an air inlet pipe 5 fixedly mounted on one side of the fan housing 2, an exhaust pipe 6 fixedly mounted on the outside of the fan housing 2, a drive motor 4 fixedly mounted on the top of the support platform 3, and a water cooling structure 7 for cooling on one side of the support platform 3.

[0036] The water-cooled structure 7 includes a storage tank 701 for storing coolant, a water pump 702 for conveying coolant, and a serpentine tube 704 for circulation. A horizontal plate is fixedly provided at the bottom of the storage tank 701, and the horizontal plate is fixedly connected to one side of the support platform 3. The water pump 702 is fixedly connected to the top of the support platform 3. A water pump 702 has a water suction pipe and a water discharge pipe 703 at both ends. One end of the water discharge pipe 703 is fixedly connected to the end of the serpentine tube 704 away from the storage tank 701. The water suction pipe is fixedly connected to one side of the storage tank 701. A drain pipe 705 is fixedly provided at the end of the serpentine tube 704 near the storage tank 701. The other end of the drain pipe 705 is fixedly connected to the top of the storage tank 701. The top of the storage tank 701 is provided with multiple heat dissipation holes 706 for dissipating the heat of the coolant. A filter screen is provided inside the heat dissipation holes 706. An injection pipe 707 is fixedly provided at the top of the storage tank 701.

[0037] Before using the equipment in this embodiment, coolant is first injected into the storage tank 701 through the injection pipe 707. Then, the water pump 702 is started, and the water pump 702 draws out the coolant from the storage tank 701 and guides it into the serpentine pipe 704 through the outlet pipe 703. The serpentine pipe 704 is in close contact with the drive motor 4, which can carry away the heat from the surface of the drive motor 4, thus achieving the purpose of cooling and heat dissipation. Finally, the coolant in the serpentine pipe 704 is returned to the storage tank 701 through the drain pipe 705, realizing the recycling of coolant. Under the natural air cooling method, water cooling can also be used to cool the equipment, optimizing the cooling effect of the equipment.

[0038] Example 2

[0039] like Figures 1-4As shown, based on Embodiment 1, a stirring assembly 8 is provided inside the liquid storage tank 701. The stirring assembly 8 includes a second drive motor 802 for driving. A mounting plate 801 is fixedly provided at the bottom of the second drive motor 802. One side of the mounting plate 801 is fixedly connected to a horizontal plate. A rotating shaft 803 is fixedly provided at the output end of the second drive motor 802. A cooling fan blade 810 is fixedly provided on the rotating shaft 803. An internal thread block 805 is movably provided on the rotating shaft 803. A reciprocating thread 804 is provided on the surface of the rotating shaft 803. A limit ring is fixedly provided on the outer ring of the reciprocating thread 804 near the stirring plate 809 to avoid motion interference between the internal thread block 805 and the second stirring block 809 and to limit the movement path of the internal thread block 805. The internal thread block 805 and the reciprocating thread 804 are movably connected. The reciprocating thread 804 allows the internal thread block 805 to move back and forth. Stirring plates 808 are fixedly provided on both sides of the internal thread block 805. Two sets of stirring plates 809 are fixedly installed on shaft 803. Connecting plates 806 are fixedly installed on both sides of the internal threaded block 805. The stirring plate 808 and the connecting plate 806 are fixedly connected. A sliding rod 807 is movably installed on the connecting plate 806. The sliding rod 807 is fixedly connected to the inner wall of the liquid storage tank 701. When the equipment is performing water cooling, the drive motor 802 is started. The drive motor 802 drives the rotating shaft 803. The rotating shaft 803 then drives the cooling fan blades 810, the internal threaded block 805, the stirring plate 808, and the stirring plate 809. The cooling fan blades 810 can dissipate heat from the liquid storage tank 701. The internal threaded block 805 moves back and forth on the rotating shaft 803. The internal threaded block 805 then drives the two sets of stirring plates 808. The cooperation of the stirring plates 808 and the stirring plate 809 can realize multi-directional stirring of the coolant, thereby improving the heat dissipation speed of the coolant, ensuring that the coolant is in a low temperature state, and improving the overall cooling effect of the equipment.

[0040] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A motor cooling device for an induced draft fan used in a cold-start boiler, comprising a base (1), characterized in that: The top of the base (1) is fixedly provided with a fan housing (2) and a support platform (3). An air inlet pipe (5) is fixedly provided on one side of the fan housing (2). An exhaust pipe (6) is fixedly provided on the outside of the fan housing (2). A drive motor (4) is fixedly provided on the top of the support platform (3). A water cooling structure (7) for cooling is provided on one side of the support platform (3). The water-cooled structure (7) includes a storage tank (701) for storing coolant, a water pump (702) for conveying coolant, and a serpentine tube (704) for circulation. A horizontal plate is fixedly provided at the bottom of the storage tank (701), and the horizontal plate is fixedly connected to one side of the support platform (3). The water pump (702) is fixedly connected to the top of the support platform (3).

2. The motor cooling device for a cold-start boiler induced draft fan according to claim 1, characterized in that, The water pump (702) is provided with a water suction pipe and a water discharge pipe (703) at both ends. One end of the water discharge pipe (703) is fixedly connected to the end of the serpentine pipe (704) away from the liquid storage tank (701). The water suction pipe is fixedly connected to one side of the liquid storage tank (701). A drain pipe (705) is fixedly provided at the end of the serpentine pipe (704) near the liquid storage tank (701). The other end of the drain pipe (705) is fixedly connected to the top of the liquid storage tank (701).

3. The motor cooling device for a cold-start boiler induced draft fan according to claim 1, characterized in that, The top of the liquid storage tank (701) is provided with a plurality of heat dissipation holes (706), and a filter screen is provided inside the heat dissipation holes (706). A liquid injection pipe (707) is fixedly provided on the top of the liquid storage tank (701), and a stirring assembly (8) is provided inside the liquid storage tank (701).

4. A motor cooling device for an induced draft fan in a cold-start boiler according to claim 3, characterized in that, The stirring assembly (8) includes a second drive motor (802) for driving. The output end of the second drive motor (802) is fixedly provided with a rotating shaft (803). An internal thread block (805) is movably provided on the rotating shaft (803). A stirring plate (808) is fixedly provided on both sides of the internal thread block (805). Two sets of stirring plates (809) are fixedly provided on the rotating shaft (803).

5. A motor cooling device for an induced draft fan in a cold-start boiler according to claim 4, characterized in that, The bottom of the second drive motor (802) is fixedly provided with a mounting plate (801), one side of the mounting plate (801) is fixedly connected to the horizontal plate, and a heat dissipation fan blade (810) is fixedly provided on the rotating shaft (803).

6. A motor cooling device for an induced draft fan in a cold-start boiler according to claim 4, characterized in that, The surface of the rotating shaft (803) is provided with a reciprocating thread (804), and the internal thread block (805) and the reciprocating thread (804) are movably connected.

7. A motor cooling device for an induced draft fan in a cold-start boiler according to claim 4, characterized in that, Both sides of the internal threaded block (805) are fixedly provided with connecting plates (806), the stirring plate (808) and the connecting plate (806) are fixedly connected, and the connecting plate (806) is movably provided with a slide rod (807), which is fixedly connected to the inner wall of the liquid storage tank (701).

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