AU2021105512A4 - Circulating Cooling System for Mining Flameproof Permanent Magnet Motorized Pulley Stator - Google Patents
Circulating Cooling System for Mining Flameproof Permanent Magnet Motorized Pulley Stator Download PDFInfo
- Publication number
- AU2021105512A4 AU2021105512A4 AU2021105512A AU2021105512A AU2021105512A4 AU 2021105512 A4 AU2021105512 A4 AU 2021105512A4 AU 2021105512 A AU2021105512 A AU 2021105512A AU 2021105512 A AU2021105512 A AU 2021105512A AU 2021105512 A4 AU2021105512 A4 AU 2021105512A4
- Authority
- AU
- Australia
- Prior art keywords
- water
- converter
- double spiral
- permanent magnet
- cooling water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 24
- 238000005065 mining Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000000498 cooling water Substances 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 abstract description 2
- 241000005139 Lycium andersonii Species 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/20627—Liquid coolant without phase change
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20309—Evaporators
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20381—Thermal management, e.g. evaporation control
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention disclose a circulating cooling system for mining flameproof permanent
magnet motorized pulley stator, which comprises a circulating pump, radiator, a water inlet
pipe, a water outlet pipe, a converter and a double spiral cooling water jacket; the double spiral
cooling water jacket is installed in the flameproof permanent magnet motorized pulley stator;
a hollow shaft is sleeved inside the double spiral cooling water jacket, and a stator coil is
installed outside the double spiral cooling water jacket; the converter is installed in the hollow
shaft; the water inlet pipe and the water outlet pipe are simultaneously connected on the vertical
end face of the converter; the horizontal surface of the converter is provided with water pipes
respectively connected with the double spiral cooling water jacket; the double spiral cooling
waterjacket is connected with the water inlet pipe and the water outlet pipe through a converter;
the other ends of the water inlet pipe and the water outlet pipe are respectively connected with
the circulating pump; the circulating pump and the radiator are connected together through a
water pipe.
1/2
FIGURES
A
B
C D E
Liquid inletF
hr - Liuid outlet
K Heat
H exchanger
G
Fig.1
3 4
5
6
7
Fig.2
Description
1/2
C D E Liquid inletF
hr - Liuid outlet
K Heat H exchanger
Fig.1
3 4
5
6
7
Fig.2
Circulating Cooling System for Mining Flameproof Permanent Magnet
Motorized Pulley Stator
The invention relates to the technical field of underground transportation in
mines, in particular to a circulating cooling system for mining flameproof permanent
magnet motorized pulley stator.
At present, in the production process of coal mine industry, transportation is a
very important link; especially the belt conveyor has the characteristics of large
transportation volume, high continuous operation efficiency and reliability, and is
widely used. But at present, the power system of belt conveyor is bulky, inefficient,
with many fault points and a large amount of maintenance. Low carbon, high
efficiency, reliability, economy and practicality have always been the key points that
enterprises pay attention to. Achieving energy saving and consumption reduction,
responding to the national policy of low-carbon economy, and improving the driving
power performance of belt conveyor transportation system are also the goals that
enterprises have been pursuing. And the design of cooling system for the permanent
magnet synchronous drum directly determines the reliability of motorized pulley and
mine frequency converter, the existing cooling system design of the transmission
system of the belt conveyor has the following defects: (1) the axial cooling water
jacket sleeved on the stator shaft is mostly used to help the motor dissipate heat. The
water channel of the axial cooling water jacket has many right-angle guides, the flow resistance of the system is greatly increased by the S-shaped flow path, under small cooling water pressure, the heat of stator core cannot be taken away in time; (2) In most cooling systems, the cooling water is discharged after carrying heat from the motor, which leads to the problems of difficulty in water intake and waste of water resources; (3) The traditional cooling system design lacks the calculation of heat and heat dissipation of permanent magnet drum, and can't optimize the energy-saving and effective cooling water circulation path. The cooling effect is average, and the cooling water system flow resistance and circulating pump power are high.
In recent years, permanent magnet synchronous motor (PMSM) has been used as
external power to drive high-power belt conveyor in coal mine, which eliminates the
traditional reducer, coupling and hydraulic coupling. The transmission efficiency can
be improved by 20-30%, so that the belt conveyor can realize high efficiency, large
torque and adjustable speed. The application of this product can be said to be a
revolution in the field of electric transmission, but it also has the disadvantages of
large volume, large occupied area, small space, and inconvenient installation,
especially in underground.
The invention aims to provide a circulating cooling system for mining
flameproof permanent magnet motorized pulley stator. By redesigning the circulation
path of cooling water, the contact area with cooling water is increased, the water flow
speed is increased, the cooling effect is enhanced, and the flow resistance of the
system is reduced as much as possible to reduce the power of the water pump; the automatic air water cooler system in the water tank dissipates the cooling water passing through the drum water channel and then re-enters the drum for circulating cooling, which solves the problems of water intake difficulty and waste of water resources and improves the universality of the system.
In order to achieve the above purpose, the present invention provides the
following technical scheme:
A circulating cooling system for mining flameproof permanent magnet
motorized pulley stator comprises a circulating pump, radiator, water inlet pipe and
water outlet pipe, and further comprises a converter and a double spiral cooling water
jacket; the double spiral cooling water jacket is installed in the flameproof permanent
magnet motorized pulley stator; a hollow shaft is sleeved inside the double spiral
cooling water jacket, and a stator coil is installed outside the double spiral cooling
water jacket; the converter is installed in the hollow shaft; the water inlet pipe and the
water outlet pipe are simultaneously connected on the vertical end face of the
converter; the horizontal surface of the converter is provided with water pipes
respectively connected with the double spiral cooling water jacket; the double spiral
cooling water jacket is connected with the water inlet pipe and the water outlet pipe
through a converter; the other ends of the water inlet pipe and the water outlet pipe are
respectively connected with the circulating pump; the circulating pump and the
radiator are connected together through a water pipe.
The converter is T-shaped, and two independent water channels are arranged in
the converter; the outer circumferential surface of the converter is provided with positioning threads.
The double spiral cooling water jacket comprises outer cylinder, inner cylinder,
spiral plate and pipe joint; two spiral plates are fixed between the outer cylinder and
the inner cylinder to form two parallel spiral water channels; the out cylinder and
inner cylinder are provide with buffer water cavities which are connected with the
different spiral water channels; the pipe joints are respectively connected at the ends
of the spiral water channel.
The pitch of the spiral plate is not less than 10-15mm.
In the above technical scheme, the technical effects and advantages provided by
the present invention are as follows:
By redesigning the circulation path of cooling water, the contact area with
cooling water is increased, the water flow speed is increased, the cooling effect is
enhanced, and the flow resistance of the system is reduced as much as possible to
reduce the power of the water pump; the automatic air water cooler system in the
water tank dissipates the cooling water passing through the drum water channel and
then re-enters the drum for circulating cooling, which solves the problems of water
intake difficulty and waste of water resources and improves the universality of the
system.
Fig. 1 is the schematic diagram of the present invention;
Fig. 2 is the section view for structure of the cooling water jacket of the present
invention;
Fig. 3 is the section view for end structure of the cooling water jacket of the
present invention;
Fig. 4 is the section view for structure of the converter of the present invention.
A: stator coil; B: double spiral cooling water jacket; C: converter; D: water inlet
pipe; E: water outlet pipe; F: circulating pump; G: radiator; H: supporting radials; K:
hollow shaft; 1: buffer water chamber; 2: outer cylinder; 3: spiral water channel A; 4:
Spiral water channel B; 5: pipe joints; 6: inner cylinder; 7: spiral plate; 8: water
channel A; 9: water channel B; 10: external thread.
In order to enable the technical personnel in the field to better understand the
technical scheme of the present invention, the present invention will be further
introduced in detail with reference to the attached drawings.
As shown in fig. 1 to fig. 4, circulating cooling system for mining flameproof
permanent magnet motorized pulley stator comprises a circulating pump F, a radiator
G, a water inlet pipe D, a water outlet pipe F, a converter C and a double spiral
cooling water jacket B; double spiral cooling jacket B can effectively increase and
decrease the mixed flow phenomenon of cooling water and increase the contact area
between cooling water and heat transfer wall (spiral plate 7 is added), fix the flow
direction of cooling water, and also reduce the power of the circulating pump F.
In order to achieve the above purpose, the double spiral cooling water jacket B is
installed inside the flameproof permanent magnet motorized pulley stator and
connected to the hollow shaft K through the supporting radials H; the hollow shaft K is sleeved inside the double spiral cooling water jacket B, that is, the inner cylinder 6 is in direct contact with the hollow shaft K.
The stator coil A is arranged outside the double spiral cooling water jacket B;
heat generated by the stator coil A is transferred to cooling water through the outer
cylinder 2; meanwhile, the spiral plate 7 also has a certain heat conduction function,
which improves the cooling efficiency.
The converter C is installed in the hollow shaft K; the water inlet pipe D and the
water outlet pipe E are simultaneously connected on the vertical end face of the
converter C; the horizontal plane of the converter C is provided with water pipes
respectively connected with the double spiral cooling water jacket B; the double spiral
cooling water jacket B is connected with the water inlet pipe D and the water outlet
pipe E through the conversion C; and the other ends of the water inlet pipe C and the
water outlet pipe E are respectively connected with the circulating pump F; circulating
pump F and radiator G are connected by water pipe.
The converter C is t-shaped, with independent water channels A8 and B9 inside;
the outer circumferential surface of the converter C is provided with an external
thread 10, which connects with the corresponding part of the hollow shaft K.
The double spiral cooling water jacket B comprises the outer cylinder 2, the
inner cylinder 6, the spiral plate 7 and the pipe joint 5; there are two spiral plates 7
fixed between the outer cylinder 2 and the inner cylinder 6 to form two parallel spiral
water channels A3 and B4. The outer cylinder 2 and the inner cylinder 6 are provided
with a buffer water chamber 1, which is connected with the spiral water channel A3 and the spiral water channel B4; the pipe joint C is connected to the ends of the spiral water channel A3 and the spiral water channel B4 through the pipe joint 5.
The pitch of the spiral plate 7 is not less than 10-15 mm.
Some exemplary embodiments of the present invention have been described
above only by way of illustration, and it goes without saying that for those of ordinary
skill in the art, the described embodiments can be modified in various ways without
departing from the spirit and scope of the present invention. Therefore, the above
drawings and descriptions are illustrative in nature, and should not be construed as
limiting the scope of protection of the claims.
Claims (4)
1. A circulating cooling system for mining flameproof permanent magnet
motorized pulley stator comprises a circulating pump, radiator, water inlet pipe and
water outlet pipe, characterized by further comprising a converter and a double spiral
cooling water jacket; the double spiral cooling water jacket is installed in the
flameproof permanent magnet motorized pulley stator; a hollow shaft is sleeved
inside the double spiral cooling water jacket, and a stator coil is installed outside the
double spiral cooling water jacket; the converter is installed in the hollow shaft; the
water inlet pipe and the water outlet pipe are simultaneously connected on the vertical
end face of the converter; the horizontal surface of the converter is provided with
water pipes respectively connected with the double spiral cooling water jacket; the
double spiral cooling water jacket is connected with the water inlet pipe and the water
outlet pipe through a converter; the other ends of the water inlet pipe and the water
outlet pipe are respectively connected with the circulating pump; the circulating pump
and the radiator are connected together through a water pipe.
2. The circulating cooling system for mining flameproof permanent magnet
motorized pulley stator according to claim 1, characterized in that the converter is
T-shaped, and two independent water channels are arranged in the converter; the outer
circumferential surface of the converter is provided with positioning threads.
3. The circulating cooling system for mining flameproof permanent magnet
motorized pulley stator according to claim 1, characterized in that the double spiral
cooling water jacket comprises outer cylinder, inner cylinder, spiral plate and pipe joint; two spiral plates are fixed between the outer cylinder and the inner cylinder to form two parallel spiral water channels; the out cylinder and inner cylinder are provide with buffer water cavities which are connected with the different spiral water channels; the pipe joints are respectively connected at the ends of the spiral water channel.
4. The circulating cooling system for mining flameproof permanent magnet
motorized pulley stator according to claim 3, characterized in that the pitch of the
spiral plate is not less than 10-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105512A AU2021105512A4 (en) | 2021-08-14 | 2021-08-14 | Circulating Cooling System for Mining Flameproof Permanent Magnet Motorized Pulley Stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105512A AU2021105512A4 (en) | 2021-08-14 | 2021-08-14 | Circulating Cooling System for Mining Flameproof Permanent Magnet Motorized Pulley Stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021105512A4 true AU2021105512A4 (en) | 2021-10-14 |
Family
ID=78007601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021105512A Ceased AU2021105512A4 (en) | 2021-08-14 | 2021-08-14 | Circulating Cooling System for Mining Flameproof Permanent Magnet Motorized Pulley Stator |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021105512A4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117937852A (en) * | 2024-03-25 | 2024-04-26 | 武汉麦迪嘉机电科技有限公司 | Coreless permanent magnet motor |
| CN117937852B (en) * | 2024-03-25 | 2024-06-04 | 武汉麦迪嘉机电科技有限公司 | Coreless permanent magnet motor |
-
2021
- 2021-08-14 AU AU2021105512A patent/AU2021105512A4/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117937852A (en) * | 2024-03-25 | 2024-04-26 | 武汉麦迪嘉机电科技有限公司 | Coreless permanent magnet motor |
| CN117937852B (en) * | 2024-03-25 | 2024-06-04 | 武汉麦迪嘉机电科技有限公司 | Coreless permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |