Motor cooling device for polyester production device
By using heat exchange components and blowing components to construct an annular airflow pattern in the polyester production device, the problem of poor motor heat dissipation is solved, efficient motor heat dissipation and stable operation are achieved, failures caused by overheating are avoided, motor life is extended and energy consumption is reduced.
Patent Information
- Application Number
- CN202422562366.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-23
AI Technical Summary
During polyester fiber production, motors suffer from poor heat dissipation due to high temperatures, potentially causing burnout, impacting production and posing a health risk to operators. Existing natural cooling and external air cooling systems are ineffective.
Adopting heat exchange components and air blowing components, a circular airflow pattern is constructed through cooling pipes and air blowing pipes, and compressed gas is used to efficiently dissipate heat from the motor. Combined with regulating valves and different cooling media, it can adapt to diverse needs.
It achieves efficient heat dissipation of the motor, avoids overheating failure, extends the motor life, reduces energy consumption, reduces noise, and ensures production stability.
Smart Images
Figure CN223363976U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polyester fiber production, in particular to a motor cooling device for a polyester production device. Background Art
[0002] During the polyester fiber production process, motors are used in various equipment, including reactor agitators, material pumps, and scraper condensers. In actual operation, these motors can overheat due to long operating hours, high power consumption, and the high ambient temperature inside the polyester production plant in summer. While motors generally generate a certain amount of heat during operation, excessively high temperatures can affect their performance and lifespan, leading to burnout of the motor coils and impacting production.
[0003] Most of the motors in polyester buildings are squirrel-cage three-phase AC asynchronous motors. When this type of motor generally works in an environment with a temperature of -15°C to 40°C, the motor surface temperature is usually between 60°C and 90°C. The ambient temperature in some areas of the polyester building can reach as high as around 48°C in summer. The maximum surface temperature of the motor working in such a high-temperature environment can reach 95°C. Once the temperature of the motor exceeds 90°C, it is likely to burn out. There are currently two ways to dissipate heat for motors. The first is natural cooling, which can also be regarded as passive cooling. It relies on the fan hardware structure of the drive motor rotor to dissipate heat from the inside through the metal material, so it will not cause too much cost expenditure. However, when encountering a motor with an inverter, its operating speed is low and the overall heat dissipation effect is not very good; the second is external air cooling. If you want to further improve the heat dissipation effect of the drive motor, you can't just rely on the fan that comes with the rotor. Active air cooling with a cooling fan will have a better effect. However, in summer, the environment in the polyester building is high and some motors still show overheating. Usually, a mobile axial fan is used to speed up the air flow around the motor to speed up the heat dissipation of the motor.
[0004] Motors such as reactor agitators, material pumps, and scraper condensers are often cooled using built-in fans. However, these fans cannot meet cooling requirements, necessitating the use of mobile axial fans directed at the motor surface to accelerate heat dissipation. However, some motors are too narrow to accommodate mobile axial fans, requiring them to be placed far away and providing poor heat dissipation. Furthermore, some motors require inverters for production control. The original cooling fans were attached to the rotors, but the addition of the inverter reduces their speed, resulting in poor heat dissipation. These motors also require mobile axial fans. However, in the summer, when ambient temperatures are high, mobile axial fans are not very effective at cooling the motors. Inadequate cooling can cause motor coil burnout, impacting production. Furthermore, on-site mobile axial fans are noisy, impacting the occupational health of on-site operators. Furthermore, their high power consumption increases energy consumption. Therefore, a new technical solution is urgently needed to address at least one of these technical issues. Summary of the Invention
[0005] In view of the above-mentioned deficiencies, the purpose of this utility model is to provide a motor cooling device for a polyester production device with good heat dissipation effect to ensure that the motor always maintains a stable performance state during operation and avoid potential failure risks caused by overheating.
[0006] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by this utility model is:
[0007] A motor cooling device for a polyester production device, characterized by comprising:
[0008] A heat exchange assembly comprising a heat exchanger and a cooling pipe wound around the outer periphery of the heat exchanger, wherein the cooling pipe has a gas inlet and a gas outlet;
[0009] An air blowing assembly is used to blow air to cool the motor. The air blowing assembly includes an air blowing pipe sleeved on the motor and a three-way joint having a first interface, a second interface and a third interface. A plurality of air blowing holes are provided on the outer periphery of the air blowing pipe. One end of the air blowing pipe is connected to the first interface, and the other end is connected to the second interface. The gas inlet is used to introduce compressed gas, and the gas outlet is connected to the third interface.
[0010] As a preferred technical solution, the device further includes a gas sub-cylinder having a main air inlet pipe, the gas sub-cylinder is provided with a plurality of gas sub-pipes communicating with the interior thereof, and the gas inlet is communicated with the gas sub-pipes.
[0011] As a preferred technical solution, a regulating valve is provided between the gas outlet and the third interface.
[0012] As a preferred technical solution, the heat exchanger is a shell-and-tube heat exchanger, and the shell-and-tube heat exchanger is provided with a first cooling medium inlet and a first cooling medium outlet communicated with the interior thereof.
[0013] As a preferred technical solution, the shell and tube heat exchanger is provided with a second cooling medium inlet and a second cooling medium outlet communicated with the interior thereof.
[0014] As a preferred technical solution, the air blowing pipe is in the shape of an arc ring.
[0015] As a preferred technical solution, the cooling pipe is evenly wound around the outer periphery of the heat exchanger in a spiral shape.
[0016] As a preferred technical solution, the blowing holes are located on the same side, and the diameter of the blowing holes is 2-3 mm.
[0017] As a preferred technical solution, the cooling pipe is made of a polyurethane hose.
[0018] As a preferred technical solution, the blowing tube is made of a polyurethane hose.
[0019] Compared with the traditional technical solution, the beneficial effects of the utility model are:
[0020] 1) The heat exchanger cools the gas in the cooling pipe through heat exchange. The cooled gas is blown out from the blowing holes, forming a circular blowing effect, accelerating the air flow on the surface of the motor, thereby improving the heat dissipation effect, ensuring that the motor always maintains a stable performance state during operation, avoiding potential failure risks caused by overheating, and taking up little space and having a compact structure;
[0021] 2) When one of the gas distribution pipes is damaged, it can be connected to other gas distribution pipes, which provides good flexibility in use;
[0022] 3) The regulating valve can adjust the gas flow rate, adjust the gas flow rate according to the on-site ambient temperature, and reasonably control the gas flow rate;
[0023] 4) Ethylene glycol coolant is introduced into the first cooling medium inlet, and chilled water is introduced into the second cooling medium inlet;
[0024] 5) The arc ring matches the shape of the motor, making it easy to install on the motor;
[0025] 6) The cooling pipe is evenly wound around the outer periphery of the heat exchanger in a spiral shape, which has a better cooling effect on the gas in the cooling pipe;
[0026] 7) The diameter of the air hole is 2-3mm, and the air blowing effect is good;
[0027] 8) The cooling pipe and the air blowing pipe are made of polyurethane hoses, which are easy to bend and install according to the on-site working conditions, and have good installation flexibility;
[0028] 9) The arc-shaped air blowing pipe is fixed on the motor. Compared with the axial flow fan for cooling, this device is not restricted by the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 A structural diagram of a device provided in one embodiment of the present utility model;
[0030] Figure 2 A structural diagram of an air blowing pipe provided in one embodiment of the utility model;
[0031] exist Figure 1-Figure 2 1. Heat exchanger; 101. First cooling medium inlet; 102. First cooling medium outlet; 103. Second cooling medium inlet; 104. Second cooling medium outlet; 2. Cooling pipe; 3. Air blowing pipe; 301. Air blowing hole; 4. T-joint; 401. First interface; 402. Second interface; 403. Third interface; 5. Air cylinder; 501. Main air intake pipe; 502. Air distribution pipe; 6. Control valve; 7. Motor. DETAILED DESCRIPTION
[0032] The present invention will be further described below in conjunction with the accompanying drawings.
[0033] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "top", "bottom", "left", "right", "front", "back", "inside", "outside" and the like appear to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0034] Please refer to Figure 1 and Figure 2, an embodiment of the present invention provides a motor cooling device for a polyester production device, comprising a heat exchange component and a blowing component, the heat exchange component comprising a heat exchanger 1, a cooling pipe 2 wound around the outer peripheral side of the heat exchanger 1, the cooling pipe 2 having a gas inlet and a gas outlet, the blowing component being used to blow air to cool the motor 7, the blowing component comprising a blowing pipe 3 sleeved on the motor 7, a three-way joint 4 having a first interface 401, a second interface 402 and a third interface 403, a plurality of blowing holes 301 being provided on the outer peripheral side of the blowing pipe 3, one end of the blowing pipe 3 being connected to the first interface 401, and the other end thereof being connected to the second interface 402, the gas inlet being used to introduce compressed gas, the gas The outlet is connected to the third interface 403, and the compressed gas enters the cooling pipe 2. The heat exchanger 1 performs heat exchange cooling on the gas in the cooling pipe 2. The cooled gas enters the blowing pipe 3, and then the cooled gas is blown out from the blowing hole 301, constructing a unique annular airflow cooling mode. This method can provide efficient heat dissipation for the motor 7 at key nodes, avoid potential failure risks caused by overheating, provide strong guarantees for the continuous and stable operation of industrial production, accelerate the air flow on the surface of the motor 7, thereby improving the heat dissipation effect, to ensure that the motor 7 always maintains a stable performance state during operation, avoid potential failure risks caused by overheating, extend the service life of the motor 7, and occupy a small space and have a compact structure.
[0035] like Figure 1 and Figure 2 As shown, the device also includes a gas cylinder 5 with a main air intake pipe 501, and the gas cylinder 5 is provided with multiple gas pipes 502 connected to its interior. The gas inlet is connected to the gas pipe 502. When one of the gas pipes 502 is damaged, it can be connected to other gas pipes 502, which has good flexibility in use.
[0036] like Figure 1 and Figure 2 As shown, a regulating valve 6 is provided between the gas outlet and the third interface 403. The regulating valve 6 can adjust the gas flow rate according to the on-site ambient temperature, and can be adjusted and optimized according to different motor 7 specifications and working environments. The gas flow rate can be reasonably controlled to meet diverse industrial needs while having high flexibility and operability.
[0037] like Figure 1 and Figure 2 As shown, the heat exchanger 1 is a shell and tube heat exchanger, which is provided with a first cooling medium inlet 101 and a first cooling medium outlet 102 communicated with the interior thereof. The first cooling medium inlet 101 is fed with ethylene glycol coolant, which has a good cooling effect.
[0038] like Figure 1 and Figure 2As shown, the shell and tube heat exchanger is provided with a second cooling medium inlet 103 and a second cooling medium outlet 104 communicated with the interior thereof, and the second cooling medium inlet 103 is fed with chilled water.
[0039] like Figure 1 and Figure 2 As shown, the shape of the air blowing pipe 3 is an arc ring, which matches the shape of the motor 7 and is easy to install on the motor 7. The arc ring air blowing pipe 3 is fixed on the motor. Compared with the axial flow fan for blowing and dissipating heat, this structure is not restricted by the surrounding environment.
[0040] like Figure 1 and Figure 2 As shown, the cooling pipe 2 is evenly wound around the outer periphery of the heat exchanger 1 in a spiral shape, which has a better cooling effect on the gas in the cooling pipe 2.
[0041] like Figure 1 and Figure 2 As shown, the blowing holes 301 are located on the same side, the diameter of the blowing holes 301 is 2-3 mm, the blowing holes 301 are close to the surface of the motor 7, and the blowing effect is good. The blowing pipe 3 is generally installed at the tail of the motor 7, and the blowing holes 301 are facing away from the fan cover, and the blowing direction is more reasonable.
[0042] like Figure 1 and Figure 2 As shown, the cooling pipe 2 and the blowing pipe 3 are made of polyurethane hose, which is convenient for bending and installing according to the on-site working conditions, saving installation space. The cooling pipe 2 can be attached to the outer peripheral side of the heat exchanger 1, and the blowing pipe 3 can clamp the motor 7, or the blowing pipe 3 can be fixed with common fixing parts, which has good installation flexibility.
[0043] Any numerical value cited herein includes all values of the lower and upper values in increments of one unit from the lower value to the upper value, provided that there is at least a two-unit interval between any lower value and any higher value. For example, if the value of a component quantity or process variable (e.g., temperature, pressure, time, etc.) is stated to be from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, it is intended to illustrate that values such as 15 to 85, 22 to 68, 43 to 51, 30 to 32, etc. are also explicitly listed in this specification. For values less than 1, one unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1. These are merely examples intended to be clearly stated, and it is to be understood that all possible combinations of the values listed between the minimum and maximum values are explicitly stated in this specification in a similar manner.
[0044] Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. When used with a range, "about" or "approximately" applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30," including at least the specified endpoints.
[0045] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." when describing a combination should include the identified elements, ingredients, components, or steps and other elements, ingredients, components, or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, components, or steps herein also contemplates embodiments consisting essentially of these elements, ingredients, components, or steps. By using the term "may," it is intended to indicate that any attribute described as "may" be optional.
[0046] Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.
[0047] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the appended claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a disclaimer of such subject matter, nor should it be considered that the inventors did not consider such subject matter to be part of the disclosed utility model subject matter.
Claims
1. A motor cooling device for a polyester production device, characterized in that: include: A heat exchange assembly comprising a heat exchanger and a cooling pipe wound around the outer periphery of the heat exchanger, wherein the cooling pipe has a gas inlet and a gas outlet; An air blowing assembly is used to blow air to cool the motor. The air blowing assembly includes an air blowing pipe sleeved on the motor and a three-way joint having a first interface, a second interface and a third interface. A plurality of air blowing holes are provided on the outer periphery of the air blowing pipe. One end of the air blowing pipe is connected to the first interface, and the other end is connected to the second interface. The gas inlet is used to introduce compressed gas, and the gas outlet is connected to the third interface.
2. The motor cooling device for polyester production equipment according to claim 1, characterized in that: The device further comprises an air sub-cylinder having a main air inlet pipe, wherein the air sub-cylinder is provided with a plurality of air sub-pipes communicating with the interior thereof, and the gas inlet is communicated with the air sub-pipes.
3. The motor cooling device for polyester production equipment according to claim 1, characterized in that: A regulating valve is provided between the gas outlet and the third interface.
4. The motor cooling device for polyester production equipment according to claim 1, characterized in that: The heat exchanger is a shell and tube heat exchanger, and the shell and tube heat exchanger is provided with a first cooling medium inlet and a first cooling medium outlet communicated with the interior thereof.
5. The motor cooling device for polyester production equipment according to claim 4, characterized in that: The shell and tube heat exchanger is provided with a second cooling medium inlet and a second cooling medium outlet communicated with the interior thereof.
6. The motor cooling device for polyester production equipment according to claim 1, characterized in that: The air blowing pipe is in the shape of an arc ring.
7. The motor cooling device for polyester production equipment according to claim 1, characterized in that: The cooling pipe is spirally wound evenly around the outer periphery of the heat exchanger.
8. The motor cooling device for polyester production equipment according to claim 1, characterized in that: The blowing holes are located on the same side, and the diameter of the blowing holes is 2-3 mm.
9. The motor cooling device for polyester production equipment according to claim 1, characterized in that: The cooling pipe is made of polyurethane hose.
10. The motor cooling device for polyester production equipment according to claim 1, characterized in that: The material of the air blowing pipe is a polyurethane hose.