CN212695853U - Water-cooling frequency conversion all-in-one machine - Google Patents
Water-cooling frequency conversion all-in-one machine Download PDFInfo
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- CN212695853U CN212695853U CN202021670607.8U CN202021670607U CN212695853U CN 212695853 U CN212695853 U CN 212695853U CN 202021670607 U CN202021670607 U CN 202021670607U CN 212695853 U CN212695853 U CN 212695853U
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Abstract
The utility model provides a water-cooling frequency conversion all-in-one, the radiating effect is good, and the protection nature is high, can effectively avoid the corruption of moist salt fog environment to the inside device of motor, reduces the motor cost. The motor comprises a motor and a frequency converter, wherein a front end cover of the motor, a shell and a rear end cover are sequentially connected to enclose a closed motor inner space; a cooling water channel is formed between the inner layer and the outer layer of the shell, a water-cooling pipe is connected outside the cooling water channel, and a water pump is arranged on the water-cooling pipe; a circulating fan is arranged on the main shaft of the motor and is positioned in the inner space of the motor. The water-cooling frequency conversion integrated machine integrates the frequency converter and the motor into a whole, thereby reducing the occupied space; a circulating fan is arranged in the internal space of the motor, so that air in the motor flows, heat in the motor can be conducted to the cooling water channel through the air flow and taken away by cooling water in the cooling water channel, and the heat dissipation capacity of the motor is improved; the circulating fan is arranged in the inner space of the closed motor, so that the corrosion influence of the moist salt fog environment on the devices in the motor can be avoided.
Description
Technical Field
The utility model belongs to the technical field of the motor, especially, the institutional advancement of the frequency conversion all-in-one that power equipment on the offshore drilling platform used.
Background
At present, in order to meet the requirement of rapid development of the petroleum industry in China, people explore and exploit petroleum and natural gas which are accumulated in deep parts of marine stratums as power sources, an offshore drilling platform is an essential offshore structure for offshore paint exploration and development, and a motor is indispensable equipment in petroleum exploitation.
Due to the space limitation of the offshore drilling platform, equipment on the platform is highly concentrated and is close to a wellhead, and the offshore drilling platform belongs to an explosion-proof area, so that the explosion-proof requirement on the equipment on the platform is high, a motor used by the offshore drilling platform is usually an explosion-proof frequency conversion all-in-one machine, the explosion-proof frequency conversion all-in-one machine is high in explosion-proof performance, the motor and a frequency conversion part are highly integrated together, the occupied space is reduced, and the offshore drilling platform is suitable for the offshore drilling platform with limited space.
In the prior art, an explosion-proof frequency conversion all-in-one machine used on an offshore drilling platform usually dissipates heat through air cooling, a fan is assembled on a main shaft of a motor, a frequency converter drives the motor, the self-cooling effect is achieved through the air volume generated by the rotation of a main shaft of the motor, an air inlet and an air outlet are formed in a motor shell, so that external low-temperature air can enter the motor through the action of the fan, meanwhile, hot air in the motor is exhausted, and the heat dissipation of devices in the motor is achieved.
The air cooling arrangement mode has the advantages that for a rotating motor with high rotating speed, the rotating speed of the fan is high, the generated air quantity is large, and the design heat dissipation effect is good. However, the motor in the frequency conversion all-in-one machine is a frequency conversion motor, and for the frequency conversion motor, when the working condition requires that the motor can only operate in a low-frequency and low-speed state, the rotating speed of the fan is low, the generated air volume is small, and the heat dissipation requirement can be hardly met only by driving the air volume generated by the fan by the motor. In addition, inside the air-cooled heat dissipation need introduce the motor with external low temperature air under the fan effect, because marine moist salt fog environment, can cause the corruption to the inside device of motor after external low temperature air gets into the motor inside, this problem is avoided to the nothing, corresponds to set up the salt fog filter on the motor usually among the prior art, has increased the motor volume, is unfavorable for marine drilling platform to the requirement of equipment structure high compactedness, and adds the cost that the salt fog filter also can increase the motor.
The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
The utility model is directed at the prior art the above-mentioned technical problem that the frequency conversion all-in-one exists provides a water-cooling frequency conversion all-in-one, and the radiating effect is good, and the protectiveness is high, can effectively avoid the corruption of moist salt fog environment to the inside device of motor, reduces the motor cost.
In order to solve the technical problem, the utility model adopts the following technical scheme to realize: a water-cooling frequency conversion integrated machine comprises a motor and a frequency converter which are integrated into a whole, wherein the motor comprises a main shaft, a front end cover, a rear end cover and a cylindrical shell positioned between the front end cover and the rear end cover, and the front end cover, the shell and the rear end cover are sequentially connected to enclose a closed motor inner space; a cooling water channel is formed between the inner layer and the outer layer of the shell, a water-cooling pipe is connected outside the cooling water channel, and a water pump is arranged on the water-cooling pipe; and a circulating fan is arranged on a main shaft of the motor and is positioned in the inner space of the motor.
The cooling water channel is a spiral cooling water channel spirally surrounded from one end of the shell to the other end of the shell.
And end cover water channels communicated with the cooling water channels are formed in the front end cover and the rear end cover, the cooling water channels, the end cover water channels and the water cooling pipes are connected in series to form a circulating cooling water channel, and the circulating cooling water channel is correspondingly provided with a radiator and a heat radiation fan for radiating heat.
A first annular groove is formed in the front end cover, a first annular baffle matched with the first annular groove is welded to the front end cover, and the first annular groove and the first annular baffle enclose the end cover water channel of the front end cover; and a second annular groove is formed in the rear end cover, a second annular baffle matched with the second annular groove is welded on the rear end cover, and the second annular groove and the second annular baffle enclose the end cover water channel of the rear end cover.
The frequency converter is located the top of motor, the motor still includes the support, the support with the bottom fixed connection of casing and upwards extend to the top of frequency converter, the radiator reaches radiator fan establishes on the support and be located the top of frequency converter.
A portion of the water-cooled tube is wound around the radiator.
The support vertically extends upwards to the upper part of the frequency converter.
The water pump is fixedly arranged at the bottom of the bracket.
The water pump is a heat dissipation water pump.
Compared with the prior art, the utility model has the advantages of it is following and positive effect:
1. the utility model integrates the frequency converter and the motor into a whole, reduces the occupied space and is easy to disassemble and transport;
2. a cooling water channel is formed in the motor shell, and a circulating fan is arranged in the closed motor inner space to enable air in the motor to flow, so that heat generated by the working of devices in the motor can be conducted to the cooling water channel through the air flow and taken away by cooling water in the cooling water channel, the heat dissipation and cooling capacity of the motor is improved, and the load capacity of the motor is increased;
3. the circulating fan promotes air flow in the sealed inner space of the motor, is not communicated with the outside, can reach higher protection level, can avoid the corrosion influence of the humid salt fog environment of occasions such as the sea on the inner devices of the motor, meets the requirement of explosion-proof design, and improves the reliability of the motor.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of the water-cooling frequency conversion integrated machine of the present invention;
FIG. 2 is a view taken along line A of FIG. 1;
FIG. 3 is a schematic partial cross-sectional view of FIG. 1;
fig. 4 is the schematic view of the cross-section of the front end cover of the motor of the water-cooling frequency conversion all-in-one machine of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
It should be noted that in the description of the present invention, the terms of direction or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the direction or position relationship shown in the wall-mounted state of the wall-mounted indoor unit of the wall-mounted air conditioner, which is only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, an exemplary water-cooling frequency conversion all-in-one machine 10 is illustrated, which includes a motor 100 and a frequency converter 200 integrated into a whole, the motor 100 includes a main shaft 110, a front end cover 120, a rear end cover 130, and a cylindrical housing 140 located between the front end cover 120 and the rear end cover 130, the front end cover 120, the housing 140, and the rear end cover 130 are sequentially connected to form a closed motor internal space 150; the casing 140 has a double-layer structure, a cooling water channel 141 is formed between an inner layer and an outer layer, a water cooling pipe (not shown) is connected outside the cooling water channel 141, and a water pump 160 is arranged on the water cooling pipe; the main shaft 110 of the motor 100 is mounted with a circulation fan 170, and the circulation fan 170 is located in the motor inner space 150.
Cooling water is pumped into the cooling water channel 141 through the water pump 160 and the water cooling pipe, meanwhile, when the motor works, the main shaft rotates to drive the internal circulating fan 170 to rotate, air in the internal space of the motor is made to flow, the air flow direction is shown by an arrow I in figure 3, heat generated by the working of internal devices of the motor can be conducted to the cooling water channel 141 through the air flow and is taken away by the cooling water in the cooling water channel 141, and the water flow direction is shown by an arrow II in figure 3, so that the heat dissipation and cooling capacity of the motor is improved. In addition, the circulating fan 170 promotes air flow in the enclosed motor internal space 150, is not communicated with the outside, can achieve a higher protection level, can avoid the corrosion influence of the humid salt fog environment of occasions such as the sea on the internal devices of the motor, meets the requirement of explosion-proof design, and improves the reliability of the motor 100.
Further, the cooling water channel 141 is spiral and is spirally surrounded to the other end by one end of the casing 140 along the circumferential direction of the casing 140, so that the flow of the cooling water channel is prolonged as much as possible, the contact area between the cooling water channel and the casing 140 is increased, the heat exchange area between the cooling water channel and the inner space of the motor is increased, the heat dissipation and cooling effects are improved, meanwhile, heat generated by the operation of the frequency converter 200 on the motor 100 can be effectively dissipated, and the heat dissipation and cooling effects of the whole machine are further improved. Specifically, the outer layer of the casing 140 is provided with a water inlet/outlet (not shown) for inputting water into the cooling water channel 141 or discharging water from the cooling water channel 141; the water inlet/outlet can be directly connected with a water-cooling pipe externally or can be connected in a switching way through a water-cooling pipe adapter.
Similarly, in order to further improve the cooling and heat dissipation effect of the whole water-cooling frequency conversion all-in-one machine 10, in this embodiment, end cover water channels communicated with the cooling water channel 141 are formed in the front end cover 120 and the rear end cover 130, wherein the end cover water channel in the front end cover 120 is the end cover water channel 121, the end cover water channel in the rear end cover 130 is the end cover water channel 131, the cooling water channel 141, the end cover water channels 121, 131 and the water cooling pipe are connected in series to form a circulating cooling water channel, as shown in fig. 3, the circulating cooling water channel is correspondingly provided with a radiator 180 and a heat dissipation fan 190 for dissipating heat therefrom, as shown in fig. Under the action of the water pump 160, cooling water circularly flows in the circulating cooling water channel, the temperature of the cooling water rises after the cooling water exchanges heat with heat generated by the operation of the water-cooling frequency conversion all-in-one machine 10, and the radiator 180 and the heat dissipation fan 190 perform heat dissipation and cooling on the warmed cooling water to enable the warmed cooling water to reach the low temperature required by cooling again, so that the heat dissipation efficiency is improved.
As for the end cover water channel 121 on the front end cover 120, specifically, referring to fig. 4, a first annular groove 122 is formed on the front end cover 120, a first annular baffle 123 adapted to the first annular groove 122 is welded on the front end cover 120, and the first annular groove 122 and the first annular baffle 123 enclose the end cover water channel 121 of the front end cover 120; similarly, a second annular groove (not shown) is formed on the rear end cover 130, and a second annular baffle plate adapted to the second annular groove is welded on the rear end cover 130, and the second annular groove and the second annular baffle plate enclose an end cover water channel 131 of the rear end cover 130. The end cover water channel 121 with the structure is simple in structure and easy to process.
In order to further reduce the overall floor area of the water-cooling frequency conversion all-in-one machine 10, in this embodiment, the frequency converter 200 is located above the motor 100, specifically, right above; the motor 100 further includes a bracket 1100, the bracket 1100 is fixedly connected to the bottom of the housing 140 and extends upward to the top of the inverter 200, and the heat sink 180 and the heat dissipation fan 190 are disposed on the bracket 1100 and located above the inverter 200. That is, the radiator 180 and the heat radiation fan 190 occupy the upper space of the water-cooling frequency conversion all-in-one machine 10, rather than the transverse space, so that the occupied space of the whole machine is further reduced, and the disassembly and the transportation are easy. Preferably, the stand 1100 extends vertically upward above the inverter 200, in the space directly above the inverter 200. The water cooling pipe may be partially wound around the radiator 180 or partially positioned on the bracket 1100 in a suspended manner so as to be as close as possible to the radiator 180 and the heat dissipation fan 190, thereby enhancing the heat dissipation and cooling effect.
For the water pump 160, which is fixed on the bottom of the bracket 1100, as shown in fig. 1, and located at the bottom corner of the bracket 1100, the water pump 160 is preferably a heat dissipation water pump with a heat dissipation fan to meet the heat dissipation requirement.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (9)
1. A water-cooling frequency conversion integrated machine comprises a motor and a frequency converter which are integrated into a whole, wherein the motor comprises a main shaft, a front end cover, a rear end cover and a cylindrical shell positioned between the front end cover and the rear end cover, and the front end cover, the shell and the rear end cover are sequentially connected to enclose a closed motor inner space; the method is characterized in that:
a cooling water channel is formed between the inner layer and the outer layer of the shell, a water-cooling pipe is connected outside the cooling water channel, and a water pump is arranged on the water-cooling pipe;
and a circulating fan is arranged on a main shaft of the motor and is positioned in the inner space of the motor.
2. The water-cooling frequency conversion all-in-one machine of claim 1, characterized in that:
the cooling water channel is a spiral cooling water channel spirally surrounded from one end of the shell to the other end of the shell.
3. The water-cooling frequency conversion all-in-one machine of claim 1, characterized in that:
and end cover water channels communicated with the cooling water channels are formed in the front end cover and the rear end cover, the cooling water channels, the end cover water channels and the water cooling pipes are connected in series to form a circulating cooling water channel, and the circulating cooling water channel is correspondingly provided with a radiator and a heat radiation fan for radiating heat.
4. The water-cooling frequency conversion all-in-one machine of claim 3, characterized in that:
a first annular groove is formed in the front end cover, a first annular baffle matched with the first annular groove is welded to the front end cover, and the first annular groove and the first annular baffle enclose the end cover water channel of the front end cover; and a second annular groove is formed in the rear end cover, a second annular baffle matched with the second annular groove is welded on the rear end cover, and the second annular groove and the second annular baffle enclose the end cover water channel of the rear end cover.
5. The water-cooling frequency conversion all-in-one machine of claim 3, characterized in that:
the frequency converter is located the top of motor, the motor still includes the support, the support with the bottom fixed connection of casing and upwards extend to the top of frequency converter, the radiator reaches radiator fan establishes on the support and be located the top of frequency converter.
6. The water-cooling frequency conversion all-in-one machine of claim 5, characterized in that:
a portion of the water-cooled tube is wound around the radiator.
7. The water-cooling frequency conversion all-in-one machine of claim 5, characterized in that:
the support vertically extends upwards to the upper part of the frequency converter.
8. The water-cooling frequency conversion all-in-one machine of claim 5, characterized in that:
the water pump is fixedly arranged at the bottom of the bracket.
9. The water-cooling frequency conversion all-in-one machine of claim 8, characterized in that:
the water pump is a heat dissipation water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021670607.8U CN212695853U (en) | 2020-08-12 | 2020-08-12 | Water-cooling frequency conversion all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021670607.8U CN212695853U (en) | 2020-08-12 | 2020-08-12 | Water-cooling frequency conversion all-in-one machine |
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| Publication Number | Publication Date |
|---|---|
| CN212695853U true CN212695853U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021670607.8U Active CN212695853U (en) | 2020-08-12 | 2020-08-12 | Water-cooling frequency conversion all-in-one machine |
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| Country | Link |
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| CN (1) | CN212695853U (en) |
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- 2020-08-12 CN CN202021670607.8U patent/CN212695853U/en active Active
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