A forced water-cooled explosion-proof motor
By designing a covered water-cooling mechanism and a rapid heat dissipation component for coolant, the problems of uneven heat dissipation and low coolant utilization efficiency in explosion-proof motors are solved, achieving efficient and economical heat dissipation and ensuring stable operation of the motor in high-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI DASHU TECHNOLOGY CO LTD
- Filing Date
- 2025-12-16
- Publication Date
- 2026-07-31
AI Technical Summary
Existing explosion-proof motors suffer from uneven heat dissipation, resulting in low efficiency, especially in high-temperature environments, and low coolant utilization, leading to significant resource waste.
It adopts a covered water cooling mechanism and a coolant rapid heat dissipation component. Covered water cooling is achieved through threaded grooves and arc-shaped air ducts. Combined with the circulation components of fan and water pump, it achieves rapid cooling and recycling of coolant.
It improves the uniformity and efficiency of heat dissipation in explosion-proof motors, reduces heat dissipation costs, ensures stable operation of motors in high-temperature environments, and reduces coolant waste.
Smart Images
Figure CN121923405B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of explosion-proof motor cooling, and specifically relates to a forced water-cooled explosion-proof motor. Background Technology
[0002] Explosion-proof motors, a specially designed type of motor, are capable of safe operation in flammable and explosive environments. Their core advantage lies in the fact that they do not generate electrical sparks during operation, a characteristic that makes them key power equipment in high-risk industries such as coal mining, oil and gas extraction, petrochemicals, and the chemical industry. In addition, explosion-proof motors are widely used in numerous other fields, including textiles, metallurgy, urban gas supply, transportation, grain and oil processing, papermaking, and pharmaceuticals. As a primary power source, explosion-proof motors are typically used to drive pumps, fans, compressors, and other types of transmission machinery, providing stable and reliable power support for all aspects of industrial production. Since explosion-proof motors are often used in environments containing flammable and explosive materials, if the heat generated during operation cannot be dissipated effectively and promptly, it could potentially trigger an explosion of surrounding flammable materials, causing a serious safety accident. Therefore, explosion-proof motors must possess excellent heat dissipation capabilities to ensure their safe operation. With the rapid development of modern technology, cooling measures for explosion-proof motors have been continuously improved, resulting in significant progress in ensuring safe operation. However, in actual use, existing explosion-proof motors still have many problems with their heat dissipation and cooling functions at the top that urgently need to be solved: 1. Currently, heat dissipation at the top of explosion-proof motors mostly relies on air cooling. However, the cooling effect of air cooling is highly susceptible to the ambient temperature, and its efficiency decreases significantly in high-temperature environments. When water cooling is used, the water-cooled area at the top of ordinary explosion-proof motors is limited, leading to uneven heat dissipation. Localized areas of the motor may still experience excessively high temperatures, thus affecting the overall heat dissipation effect and failing to effectively ensure stable operation of the motor in high-temperature environments.
[0003] 2. For explosion-proof motors using forced water cooling, the coolant lacks rapid cooling after completing one heat dissipation cycle during use, and cannot quickly restore its cooling capacity. Furthermore, existing explosion-proof motors do not have a coolant recycling and reuse function; the used coolant must be discarded, which not only wastes resources but also increases the heat dissipation cost of the explosion-proof motor, hindering the long-term economic operation of the equipment.
[0004] Against this backdrop, it is necessary to improve and innovate existing heat dissipation technologies for explosion-proof motors in order to solve problems such as uneven heat dissipation and inefficient coolant utilization, thereby improving the heat dissipation effect and operational safety of explosion-proof motors and reducing heat dissipation costs. Summary of the Invention
[0005] To address the aforementioned problems, this invention provides a forced water-cooled explosion-proof motor to solve the issues raised in the background section.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a forced water-cooled explosion-proof motor, comprising a mounting plate and a motor body, wherein a cover-type water-cooling cooling mechanism, a coolant rapid heat dissipation component and a circulation component are respectively installed on the top of the mounting plate, wherein the motor body is installed at the middle position of the top of the mounting plate. The covered water-cooling mechanism includes an explosion-proof cover installed on top of the mounting plate, with the motor body placed inside the explosion-proof cover. A threaded groove is provided at the edge of the inner wall of the explosion-proof cover. A first liquid storage tank is installed at the edge of one side of the top of the mounting plate. A first conduit is inserted and connected to one end of the outer wall of the explosion-proof cover, and the inner wall of one end of the first conduit communicates with the inner wall of the threaded groove. A first water pump is installed on one side of the top of the first liquid storage tank, and the other end of the first conduit is inserted and connected to the output end of the first water pump. A second liquid storage tank is installed at the edge of the other side of the top of the mounting plate. A second conduit is inserted and connected to one side of the top of the second liquid storage tank, and one end of the second conduit passes through the inner wall of one side of the explosion-proof cover and communicates with the inner wall of the threaded groove. A wind box is installed on one side of the mounting plate. A fan is installed at the edge of one side of the inner wall of the wind box. Multiple arc-shaped air guide pipes are inserted and connected at equal intervals on the top of the wind box. Preferably, one end of each of the arc-shaped air guide pipes is inserted and connected to the inner wall of the second liquid storage tank, and the inner walls at both ends of each arc-shaped air guide pipe are respectively connected to the inner wall of the air box and the inner wall of the second liquid storage tank.
[0007] Preferably, the rapid cooling component includes exhaust holes equidistantly located on both sides of each arc-shaped air duct at the top of the second liquid storage tank, and multiple connecting pipes are fixedly connected at equal intervals above the inner wall of the second liquid storage tank.
[0008] Preferably, the inner wall of one end of each connecting pipe passes through the inner wall of the second liquid storage tank and communicates with the inner wall of each arc-shaped air guide pipe. An air inlet cover is fixedly provided at the bottom of each connecting pipe, and multiple air outlet holes are opened at equal intervals on the outer wall of each air inlet cover.
[0009] Preferably, the circulation assembly includes drain pipes installed at one end of the first and second storage tanks, and the inner walls of one end of the two drain pipes are respectively connected to the inner walls of the first and second storage tanks, and a second water pump is fixedly provided between one end of the two drain pipes.
[0010] Preferably, an inlet pipe is inserted and connected to the other end of one side of the outer wall of the first liquid storage tank, and buffer pads are installed on both sides of the top edge of the mounting pad.
[0011] Preferably, the tops of the two buffer pads are fixedly connected to the bottoms of the first and second liquid storage tanks, respectively; one side of the bellows is fixedly connected to one side of the outer wall of one of the buffer pads; and the output end of the motor body is fixedly connected to a rotating shaft through the outer wall of one side of the explosion-proof cover.
[0012] Preferably, a control switch is installed on one side of the mounting plate, and the first water pump, the second water pump, the motor body, and the fan are all electrically connected to an external power supply through the control switch.
[0013] The technical effects and advantages of this invention are as follows: This invention employs a covered water-cooling mechanism. A first water pump draws coolant stored in a first storage tank into a threaded groove inside an explosion-proof cover via a first conduit. The coolant flows through the groove, covering the inside of the explosion-proof cover and the outer perimeter of the motor body, effectively cooling it. The cooled coolant, having absorbed heat, flows through a second conduit into a second storage tank. A fan-equipped airbox on the side of the second storage tank then guides cool air through an arc-shaped duct into the tank, further cooling it and facilitating subsequent recycling. This design avoids air cooling, which is susceptible to environmental influences affecting motor heat dissipation. Furthermore, the threaded grooves cover the motor body, achieving a comprehensive water-cooling system that ensures even heat distribution and prevents uneven heat dissipation, thus improving the motor's cooling performance and enabling stable operation. This invention incorporates a rapid cooling and circulation component for the coolant. After the heat-absorbing coolant is injected into the second storage tank, a fan is activated to guide cold air through an arc-shaped air duct and then into various connecting pipes inside the second storage tank. The air then gathers in each air inlet hood, which is located within the heat-absorbing coolant deposited in the second storage tank. The gathered cold air in the air inlet hood is discharged through the air outlet on the outer wall of the hood, flowing and tumbling within the heat-absorbing coolant to cool it down. Gas is discharged through the exhaust vent, effectively achieving gas exchange within the second storage tank and rapidly cooling the heat-absorbing coolant. Then, a second water pump is activated to draw the coolant from the second storage tank into the first storage tank via a drain pipe. The coolant can then be guided through a first conduit into the threaded groove for further water cooling. This not only rapidly cools the heat-absorbing coolant but also allows it to circulate repeatedly within the explosion-proof enclosure for cooling, reducing resource waste and lowering the heat dissipation cost for the explosion-proof motor.
[0014] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the front of the invention; Figure 2 This is a schematic diagram of the interior of the explosion-proof cover of the present invention; Figure 3 This is a schematic diagram of the water cooling of the first and second liquid storage tanks of the present invention; Figure 4 This is a schematic diagram of the interior of the second liquid storage tank of the present invention; Figure 5 This is a schematic diagram of the back of the invention; Figure 6 This is an appendix to the specification of this invention. Figure 4 A magnified diagram of point A in the middle.
[0017] In the diagram: 1. Mounting pad; 2. Motor body; 3. Cover-type water cooling mechanism; 301. Explosion-proof cover; 302. Threaded groove; 303. First liquid storage tank; 304. First conduit; 305. First water pump; 306. Second liquid storage tank; 307. Second conduit; 308. Air box; 309. Fan; 310. Arc-shaped air duct; 4. Coolant rapid heat dissipation assembly; 401. Exhaust port; 402. Connecting pipe; 403. Air inlet cover; 404. Air outlet; 5. Circulation assembly; 501. Drain pipe; 502. Second water pump; 6. Inlet pipe; 7. Buffer pad; 8. Rotating shaft. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] This invention provides, for example Figure 1-6 The explosion-proof motor with forced water cooling shown includes a mounting plate 1 and a motor body 2. The feature is that a cover-type water cooling mechanism 3, a coolant rapid heat dissipation component 4 and a circulation component 5 are respectively installed on the top of the mounting plate 1, wherein the motor body 2 is installed at the middle position of the top of the mounting plate 1. The covered water-cooling mechanism 3 includes an explosion-proof cover 301 mounted on top of the mounting plate 1, with the motor body 2 placed inside the explosion-proof cover 301. A threaded groove 302 is provided on the edge of the inner wall of the explosion-proof cover 301. A first liquid storage tank 303 is installed on the edge of one side of the top of the mounting plate 1. A first conduit 304 is inserted and connected to one end of the outer wall of the explosion-proof cover 301, and the inner wall of one end of the first conduit 304 communicates with the inner wall of the threaded groove 302. A first water pump 305 is installed on one side of the top of the first liquid storage tank 303, and the first conduit 304... The other end of 04 is inserted and connected to the output end of the first water pump 305. A second liquid storage tank 306 is installed on the edge of the other side of the top of the mounting plate 1. A second conduit 307 is inserted and connected to one side of the top of the second liquid storage tank 306. One end of the second conduit 307 passes through the inner wall of the explosion-proof cover 301 and communicates with the inner wall of the threaded groove 302. A wind box 308 is installed on one side of the mounting plate 1. A fan 309 is installed on the edge of the inner wall of the wind box 308. Multiple arc-shaped air guide pipes 310 are inserted and connected at equal intervals on the top of the wind box 308. In use, the motor body 2 is placed on the mounting plate 1 and is located inside the explosion-proof cover 301, which effectively blocks the heat generated when the motor body 2 is running. Simultaneously, while the motor body 2 is running, the first water pump 305 draws the coolant stored in the first storage tank 303 into the threaded groove 302 inside the explosion-proof cover 301 through the first conduit 304, allowing the coolant to flow in the threaded groove 302 and thus cover the inside of the explosion-proof cover 301. The motor body 2 is as described in the attached diagram. Figure 2 As shown, the outer wall is close to the inner wall of the explosion-proof cover 301. When the threaded groove 302 is filled with coolant, the coolant covers the outer periphery of the motor body 2, effectively cooling it. The coolant, after absorbing heat, flows into the second liquid storage tank 306 through the second conduit 307. The air box 308 with a fan 309 on the side of the second liquid storage tank 306 introduces the cold air into the second liquid storage tank 306 through the arc-shaped air guide pipe 310 to effectively cool it, facilitating subsequent recycling. This design scheme does not use air cooling to dissipate heat from the explosion-proof motor, avoiding the problem that air cooling is easily affected by the environment and affects the motor's heat dissipation. At the same time, the coolant is covered by the threaded groove 302 to achieve a covered water cooling cooling, so that the surface of the motor body 2 is fully covered, avoiding uneven heat dissipation, thereby improving the heat dissipation effect of the motor. Furthermore, one end of each arc-shaped air duct 310 is connected to the inner wall of the second liquid storage tank 306, and the inner walls of both ends of each arc-shaped air duct 310 are connected to the inner wall of the air box 308 and the inner wall of the second liquid storage tank 306, respectively. The coolant flows in the threaded groove 302, covering the outer surface of the motor body 2, effectively absorbing the heat around the motor. The coolant after absorbing the heat enters the second liquid storage tank 306, is vented by the fan 309, and then injected into the second liquid storage tank 306 by the air box 308 and the arc-shaped air duct 310 to cool down the coolant after absorbing the heat, making it convenient for subsequent use. Furthermore, the rapid cooling component 4 includes exhaust holes 401 equidistantly located on both sides of each arc-shaped air duct 310 at the top of the second liquid storage tank 306. Multiple connecting pipes 402 are fixedly connected at equal intervals above the inner wall of the second liquid storage tank 306, and each exhaust hole 401 is located on both sides of the top of the second liquid storage tank 306. After absorbing heat, the coolant is introduced into the second liquid storage tank 306 and deposited at the bottom of its inner wall, so it will not overflow from the exhaust hole 401.
[0020] The inner wall of one end of each connecting pipe 402 passes through the inner wall of the second liquid storage tank 306 and communicates with the inner wall of each arc-shaped air guide pipe 310. Each connecting pipe 402 has a fixed air inlet hood 403 at its bottom. The outer wall of each air inlet hood 403 has multiple air outlet holes 404 at equal intervals. After the heat-absorbing coolant is injected into the second liquid storage tank 306, the fan 309 is started, causing cold air to be guided through the air box 308 into the arc-shaped air guide pipe 310 and then into each connecting pipe 402 inside the second liquid storage tank 306. The cold air in the air inlet 403 is then collected in each air inlet hood 403. At this time, each air inlet hood 403 is located in the coolant that has absorbed heat and deposited in the second liquid storage tank 306. After the cold air in the air inlet hood 403 is collected, it is discharged through the air outlet 404 on the outer wall of the air inlet hood 403. Then, it flows in the coolant that has absorbed heat, causing the liquid to roll and cool it down. The gas is discharged through the exhaust port 401, effectively realizing the exchange of gas inside the second liquid storage tank 306 and realizing the rapid cooling of the coolant after absorbing heat. Furthermore, the circulation component 5 includes a drain pipe 501 installed at one end of the first liquid storage tank 303 and the second liquid storage tank 306. The inner walls of one end of the two drain pipes 501 are respectively connected to the inner walls of the first liquid storage tank 303 and the second liquid storage tank 306. A second water pump 502 is fixedly installed between one end of the two drain pipes 501. After the coolant absorbs heat, it is cooled and dissipated by the coolant rapid heat dissipation component 4. Then, the second water pump 502 is started, and the coolant is drawn from the second liquid storage tank 306 into the first liquid storage tank 303 through the drain pipe 501. It can then be guided into the threaded groove 302 through the first conduit 304 for further water cooling. This not only allows for rapid cooling of the coolant after heat absorption, but also allows it to circulate repeatedly within the explosion-proof cover 301 for cooling, reducing resource waste and lowering the heat dissipation cost of the explosion-proof motor. Furthermore, an inlet pipe 6 is inserted and connected to the other end of one side of the outer wall of the first liquid storage tank 303, and buffer pads 7 are installed on both sides of the top edge of the mounting pad 1. By setting the buffer pads 7 to support the first liquid storage tank 303 and the second liquid storage tank 306, the vibration of the coolant in the motor body 2 is reduced when it is running, so that it can be smoothly introduced into the threaded groove 302 and flow in the second liquid storage tank 306 for heat dissipation.
[0021] The tops of the two buffer pads 7 are fixedly connected to the bottoms of the first liquid storage tank 303 and the second liquid storage tank 306, respectively. One side of the bellows 308 is fixedly connected to one side of the outer wall of one of the buffer pads 7. The output end of the motor body 2 is fixedly connected to a rotating shaft 8 through the outer wall of one side of the explosion-proof cover 301. When the motor body 2 is in use, it can rotate normally to drive the equipment by connecting to the external equipment through the rotating shaft 8 connected to it through the explosion-proof cover 301.
[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A forced water-cooled explosion-proof electric machine comprising a mounting pad (1) and a machine body (2), characterized in that: The top of the mounting plate (1) is respectively equipped with a cover-type water cooling mechanism (3), a coolant rapid heat dissipation component (4) and a circulation component (5), wherein the motor body (2) is installed in the middle position of the top of the mounting plate (1). The covered water-cooled cooling mechanism (3) includes an explosion-proof cover (301) installed on the top of the mounting plate (1), and the motor body (2) is placed inside the explosion-proof cover (301). A threaded groove (302) is provided at the edge of the inner wall of the explosion-proof cover (301). A first liquid storage tank (303) is installed at the edge of the top side of the mounting plate (1). A first conduit (304) is inserted and connected to one end of the outer wall of the explosion-proof cover (301), and the inner wall of one end of the first conduit (304) is connected to the inner wall of the threaded groove (302). A first water pump (305) is installed on one side of the top of the first liquid storage tank (303), and the first conduit ( The other end of 304 is inserted and connected to the output end of the first water pump (305). A second liquid storage tank (306) is installed on the edge of the other side of the top of the mounting pad (1). A second conduit (307) is inserted and connected to one side of the top of the second liquid storage tank (306). One end of the second conduit (307) passes through the inner wall of the explosion-proof cover (301) and communicates with the inner wall of the threaded groove (302). A wind box (308) is installed on one side of the mounting pad (1). A fan (309) is installed on the edge of the inner wall of the wind box (308). Multiple arc-shaped air guide pipes (310) are inserted and connected at equal intervals on the top of the wind box (308). The rapid cooling component (4) includes exhaust holes (401) that are equidistantly opened on the top of the second liquid storage tank (306) on both sides of each arc-shaped air duct (310), and multiple connecting pipes (402) are fixedly connected at equal intervals above the inner wall of the second liquid storage tank (306). The inner wall of one end of each of the connecting pipes (402) passes through the inner wall of the second liquid storage tank (306) and communicates with the inner wall of each arc-shaped air guide pipe (310). An air inlet hood (403) is fixedly provided at the bottom of each of the connecting pipes (402), and multiple air outlet holes (404) are opened at equal intervals on the outer wall of each air inlet hood (403). The circulation component (5) includes a drain pipe (501) installed at one end of the first liquid storage tank (303) and the second liquid storage tank (306), and the inner wall of one end of the two drain pipes (501) is connected to the inner wall of the first liquid storage tank (303) and the inner wall of the second liquid storage tank (306) respectively. A second water pump (502) is fixedly provided between the two drain pipes (501). The other end of the outer wall of the first liquid storage tank (303) is connected to the liquid inlet pipe (6), and buffer pads (7) are installed on both sides of the top edge of the mounting pad (1). The tops of the two buffer pads (7) are fixedly connected to the bottom of the first liquid storage tank (303) and the bottom of the second liquid storage tank (306), respectively. One side of the bellows (308) is fixedly connected to one side of the outer wall of one of the buffer pads (7). The output end of the motor body (2) is fixedly connected to a rotating shaft (8) through the outer wall of one side of the explosion-proof cover (301).
2. A water-cooled explosion-proof electric motor according to claim 1, characterized in that: One end of each of the arc-shaped air ducts (310) is connected to the inner wall of the second liquid storage tank (306), and the inner walls at both ends of each arc-shaped air duct (310) are connected to the inner wall of the air box (308) and the inner wall of the second liquid storage tank (306).
3. A water-cooled explosion-proof electric motor according to claim 1, characterized in that: A control switch is installed on one side of the mounting plate (1), and the first water pump (305), the second water pump (502), the motor body (2) and the fan (309) are all electrically connected to an external power supply through the control switch.