CN110541825B - Integrated air compressor using rare earth motor - Google Patents
Integrated air compressor using rare earth motor Download PDFInfo
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- CN110541825B CN110541825B CN201910907237.0A CN201910907237A CN110541825B CN 110541825 B CN110541825 B CN 110541825B CN 201910907237 A CN201910907237 A CN 201910907237A CN 110541825 B CN110541825 B CN 110541825B
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- compressor
- air
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 125
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 121
- 239000003507 refrigerant Substances 0.000 claims abstract description 104
- 238000001816 cooling Methods 0.000 claims abstract description 63
- 238000001035 drying Methods 0.000 claims abstract description 54
- 230000006835 compression Effects 0.000 claims abstract description 34
- 238000007906 compression Methods 0.000 claims abstract description 34
- 238000005096 rolling process Methods 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 1
- 239000000112 cooling gas Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000011161 development Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
- F04C18/165—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type having more than two rotary pistons with parallel axes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to the field of air compressors and drying systems, in particular to an integrated air compressor applying a rare earth motor, which comprises an integrated rare earth motor module, an expansion valve and a heat exchange centralized control module, wherein three groups of cooling and drying integrated modules are arranged at the outer side of the integrated rare earth motor module at equal angles, four-rod type spiral air compressor modules and vortex refrigerant compressor modules are respectively arranged at the two ends of the integrated rare earth motor module, the integrated rare earth motor module comprises a compressor base, a hydraulic power bearing is arranged in the compressor base, and the integrated air compressor system is controlled by the heat exchange centralized control module at the far end and can control the effective compression amount of air inlet, the temperature of refrigeration cycle, the air outlet flow and the like according to actual requirements. And the running condition of the system is mastered in real time through equipment such as a temperature sensor and the like.
Description
Technical Field
The invention relates to the field of air compressors and drying systems, in particular to an integrated air compressor applying a rare earth motor.
Background
In a thermal power plant, an air compressor (air compressor) is used to supply compressed air to a pneumatic power plant. The common air is compressed by an air compressor to become high-pressure compressed air, and the high-pressure compressed air is converted into power required by production and manufacture by pneumatic power equipment.
And after the gas is compressed, the pressure is increased, the saturation vapor pressure is smaller, the relative humidity is increased, and water is more likely to be precipitated. Therefore, the output port of the air compressor is usually connected to a gas drying device, such as a cold dryer (compressed air cooling dryer) for cooling and drying, and finally outputs the dried compressed air.
The existing air compressor system mainly comprises the air compressor, a cooling dryer, an air compressor and other cooling devices. The air compressor mainly adopts a common-frequency three-phase asynchronous motor, has large volume, high noise and energy consumption, and has obvious temperature rise of the motor and the compressor in the long-term operation process, but has no effective and economic cooling means; the cold dryer connected at the outlet of the air compressor is huge in volume and complex in pipeline; the motor used for driving the air compressor often adopts a fan cooling mode, so that the energy consumption is high, and the effect is not obvious. The existing installed air compressor system often occupies a larger space, and has the disadvantages of larger energy consumption, obvious temperature rise and difficult maintenance during operation.
At present, the power industry is upgraded to an intelligent industry, power plant equipment strives for economy and efficiency, and the power plant equipment is combined with the big data Internet of things. Traditional air compressor system obviously is difficult to satisfy the needs of wisdom power plant.
Aiming at the problem, the integrated air compressor system equipment which uses the rare earth motor as power drive has small volume, low energy consumption, easy maintenance and intelligence is provided.
Disclosure of Invention
The invention aims to provide an integrated air compressor applying a rare earth motor so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The integrated air compressor using the rare earth motor comprises an integrated rare earth motor module, an expansion valve and a heat exchange centralized control module, wherein three groups of cooling and drying integrated modules are arranged at the outer side of the integrated rare earth motor module at equal angles, a four-rod type spiral air compressor module and a vortex refrigerant compressor module are respectively arranged at the two ends of the integrated rare earth motor module, the integrated rare earth motor module comprises a compressor base, a hydrodynamic bearing is arranged in the compressor base, a thrust bearing fixed end seat is arranged at one end of the compressor base, a thrust bearing is arranged at the inner part of the compressor base in a matched manner, a gland is arranged at the left end of the compressor base, a sealing ring is arranged at the right end of the compressor base in a matched manner, a sealing end cover is arranged at the matched manner, and is connected with the cooling and drying integrated module through a compressed air output pipe, a coupling is arranged between the cooling and drying integrated module and the four-bar type spiral air compressor module, a connecting shaft seat is arranged in cooperation with the coupling, a compressed air output head is arranged between the compressed air output pipe and the four-bar type spiral air compressor module in a connecting way, a main spiral cavity is arranged in the four-bar type spiral air compressor module, a spiral compression output port and a secondary spiral cavity are respectively arranged in the connecting main spiral cavity, an air total air inlet is arranged on one side of a compressor base, a rare earth motor connecting seat is cooperatively arranged on the outer side of the right end of the compressor base, the integrated rare earth motor module comprises a compressed air total air outlet, a rare earth motor module mounting seat is arranged on one side of the integrated rare earth motor module, a rare earth permanent magnet motor rotor main shaft and a rotor air gap are arranged in the integrated rare earth permanent magnet motor module, a three-phase winding is cooperatively arranged on the outer side of the rare earth permanent magnet motor rotor main shaft, the cooling and drying integrated module comprises a cooling and drying integrated module fan plate body, a heat exchange loop module is arranged in the cooling and drying integrated module fan plate body, one end of the cooling and drying integrated module fan plate body is communicated with the integrated rare earth motor module through a drying and cooling air output pipe, a refrigerant output pipe and a refrigerant input pipe are arranged in the cooling and drying integrated module fan plate body in a matched mode, a rolling bearing mounting seat is arranged in the rolling bearing mounting seat, a rolling bearing is arranged in the rolling bearing mounting seat in a matched mode, a bearing gland and a sealing ring are arranged in the rolling bearing in a matched mode, a movable crankshaft is arranged in the rolling bearing mounting seat, a fixed vortex is arranged in the rolling bearing mounting seat, the heat exchange control module comprises a heat exchange control box, one end of the cooling and drying integrated module fan plate body is communicated with the integrated rare earth motor module through a drying and cooling air output pipe, a refrigerant output pipe and a refrigerant input pipe are arranged in the matched mode, the vortex refrigerant compressor module comprises a rolling bearing mounting seat, a fixed vortex control box and a movable vortex control shaft is arranged in the rolling bearing mounting seat, and the heat exchange control module comprises a heat exchange control box and a plurality of heat exchange box is arranged at the upper half-set heat exchange box.
As a further scheme of the invention: the compressor base on the right side of the gland is internally provided with a driven spiral gear and a driving spiral gear in a matched mode.
As a further scheme of the invention: a driving spiral gear and a driving shaft hydrodynamic bearing are arranged in the middle of the inside of the compressor base.
As a further scheme of the invention: the driving spiral and the driven spiral are respectively arranged in cooperation with the driving spiral gear and the driving shaft hydraulic bearing.
As a further scheme of the invention: one end of the rolling bearing mounting seat is provided with a refrigerant compression tank body.
As a further scheme of the invention: the inside of the refrigerant compression tank body is provided with a high-pressure refrigerant isolation cabin, and one end of the refrigerant compression tank body is provided with a refrigerant compression output pipe through a refrigerant output head.
As still further aspects of the invention: the refrigerant heat exchange module is embedded in the lower half part of the heat exchange centralized control box, and a centralized control module area is arranged in the heat exchange centralized control box.
Compared with the prior art, the invention has the beneficial effects that: the invention develops an integrated air compressor system with small volume, good heat dissipation and low power consumption. The power driving unit adopts a permanent magnet rare earth motor, so that the consumption of electric energy is reduced compared with the existing three-phase asynchronous motor on the market, and the temperature rise condition is mild. Adopt the compression structure of four-bar screw, compress into high-pressure gas with the air compressor machine inlet air, compare in traditional 1 screw rod or twin-screw's compressor, can exert bigger compression performance with less volume. Meanwhile, the rare earth motor is used as the power drive of the refrigerant scroll compressor, the refrigerant is synchronously conveyed to the heat exchange centralized control module at the far end, the released heat energy is converted into low-temperature gas, and the low-temperature gas is collected to the cooling and drying integrated module around the permanent magnet rare earth motor module. Compressed air enters the cooling and drying integrated module from the other end, water is separated out through cooling and cooling, and the rare earth motor is cooled through a circulating pipeline of the rare earth motor structural design. Finally, dry compressed air is output while the system temperature is constant.
The integrated air compressor system is controlled by a remote heat exchange centralized control module, and can control the effective compression amount of air inlet, the temperature of refrigeration cycle, the air outlet flow and the like according to actual requirements. And the running condition of the system is mastered in real time through equipment such as a temperature sensor and the like.
Drawings
FIG. 1 is a schematic view of the whole structure of the present invention
Fig. 2 is a schematic cross-sectional view of a four-bar screw air compressor module according to the present invention
FIG. 3 is a schematic cross-sectional view of an integrated rare earth motor module according to the present invention
FIG. 4 is a schematic view of a compressor base of the present invention
FIG. 5 is a schematic view of a rare earth motor base of the present invention
FIG. 6 is a schematic cross-sectional view of a scroll refrigerant compressor module according to the present invention
FIG. 7 is a schematic diagram of a centralized heat exchange control module according to the present invention
1-Integrated rare earth motor module, 2-four-bar screw air compressor module, 3-cooling and drying integrated module, 4-vortex refrigerant compressor module, 5-expansion valve, 6-heat exchange centralized control module, 101-compressed air main air outlet, 102-permanent magnet motor rotor synchronous fan, 103-three-phase winding, 104-rare earth permanent magnet motor rotor main shaft, 105-rotor air gap, 106-rare earth permanent magnet motor stator, 107-stator cooling air circuit, 108-rare earth motor module mounting seat, 109-drying and cooling compressed air inlet, 110-stator air gap, 111-stator winding mounting position, 112-mounting spigot, 201-air main air inlet, 202-compressor base, 203-hydrodynamic bearing, 204-thrust bearing fixed end seat 205-thrust bearing, 206-driven helical gear, 207-gland, 208-driving helical gear, 209-driving shaft thrust bearing, 210-driving shaft hydrodynamic bearing, 211-driving screw, 212-driven screw, 213-sealing ring, 214-rare earth motor connection seat, 215-sealing end cap, 216-compressed air output tube, 217-coupling, 218-connecting seat, 219-compressed air output head, 220-helical compression output port, 221-main helical cavity, 222-auxiliary helical cavity, 301-heat exchange loop module, 302-cool-dry integrated module fan plate, 303-dry cool air output tube, 304-refrigerant output tube, 305-refrigerant input tube, 401-rolling bearing mounting seat, 402-rolling bearings, 403-bearing covers, 404-sealing rings, 405-movable crankshafts, 406-fixed scrolls, 407-movable scrolls, 408-high-pressure refrigerant isolation cabins, 409-refrigerant compression tank bodies, 410-refrigerant compression output pipes, 411-refrigerant output heads 601-heat exchange centralized control boxes, 602-heat exchange installation seats, 603-heat exchange fans, 604-refrigerant heat exchange modules, 605-installation seat bodies and 606-centralized control module areas.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Fig. 1 shows an example of the overall structure of an embodiment of the present invention.
As shown in fig. 1, an integrated air compressor system using rare earth motor driving has the following overall structure: integrated rare earth motor module 1, four-bar screw air compressor module 2, cooling and drying integrated module 3, vortex refrigerant compressor module 4, expansion valve 5, heat exchange centralized control module 6, compressed air main air outlet 101, air main air inlet 201, compressed air output pipe 216, refrigerant output pipe 304, refrigerant input pipe 305, refrigerant compressed gas output pipe 410
The integrated rare earth motor module 1 is a key component in the invention and is used for providing power for equipment operation. The four-bar screw air compressor module 2 is mounted on the left side of the figure of the integrated rare earth motor module 1 and is coaxially connected with the integrated rare earth motor module 1. The vortex refrigerant compressor module 4 is installed on the right side of the integrated rare earth motor module 1 in the figure and is coaxially connected with the integrated rare earth motor module 1. The three cooling and drying integrated modules 3 are arranged around the integrated rare earth motor module 1 and are annularly and uniformly distributed. When the system is electrified and started, a rotor main shaft in the integrated rare earth motor module 1 rotates, and simultaneously drives the four-bar type spiral air compressor module 2 and the vortex refrigerant compressor module 4 to work, so that the circulation of compressed air and compressed refrigerant is completed.
The air main inlet 201 is located on the four-bar-type screw air compressor module 2. The total 3 air inlets 201 are arranged in the middle of the seat body of the four-bar type spiral air compressor module 2 and annularly and uniformly distributed on the upper part of the seat body. The pretreated air enters the four-bar type spiral air compressor module 2 through the air main inlet 201 and is compressed into high-pressure air.
The compressed air output pipes 216 are positioned at the tail parts of the four-bar type spiral air compressor module 2, and the high-pressure air is output by the three compressed air output pipes 216 and enters the cooling and drying integrated module 3 to be cooled and dried, so that water is separated out.
The compressed air main outlet 101 is located on the integrated rare earth motor module 1. A total of 3 compressed air outlets 101 are annularly and uniformly distributed on the upper part of the seat body. The high-pressure air is circularly cooled and dried in the system, and is finally output by the compressed air main air outlet 101 to be supplied to external starting equipment for use.
The refrigerant compression output pipe 410 is located at the tail of the scroll refrigerant compressor module 4 and is used for outputting compressed refrigerant. The high-pressure refrigerant is output to the remote heat exchange centralized control module 6 through the refrigerant compression output pipe 410, and exchanges heat with the external air to release the heat energy brought by the refrigerant. The heat exchange centralized control module 6 can be installed nearby or in an open area with a far end easy to contact with air.
The coolant after releasing the heat energy flows through the expansion valve 5 through a pipeline, is depressurized and cooled to become low-temperature gas, and is converged into the cooling and drying integrated module 3 through the refrigerant output pipe 304, so that the cooling and drying integrated module 3 is cooled. And then returns to the scroll refrigerant compressor module 4 through the refrigerant input pipe 305.
Cross-sectional structure example of four-bar screw air compressor module
Fig. 2 is a schematic diagram showing an example of a cross-sectional structure of a four-bar screw air compressor module according to an embodiment of the present invention.
As shown in fig. 2, the integrated rare earth motor module 1 includes: compressed air main air outlet 101, permanent magnet motor rotor synchronous fan 102, three-phase winding 103, rare earth permanent magnet motor rotor main shaft 104, rotor air gap 105, rare earth permanent magnet motor stator 106, stator cooling air circuit 107, rare earth motor module mounting seat 108
The four-bar screw air compressor module 2 includes: air intake 201, compressor base 202, hydrodynamic bearing 203, thrust bearing fixed end seat 204, thrust bearing 205, driven helical gear 206, gland 207, driving helical gear 208, driving thrust bearing 209, driving hydrodynamic bearing 210, driving helical 211, driven helical 212, seal ring 213, rare earth motor connection seat 214, seal end cover 215, compressed air output tube 216, coupling 217, connection seat 218
The cool-drying integrated module 3 has: heat exchange circuit module 301, cooling and drying integrated module fan plate 302, drying and cooling air output pipe 303, refrigerant output pipe 304, and refrigerant input pipe 305
The rare earth motor module mount 108 is floor mounted to the ground and may be mounted using anchor bolts. The ground of the mounting seat is required to have better flatness and is stably combined with the ground or other mounting surfaces.
The rare earth permanent magnet motor stator 106 is fixedly mounted above the rare earth motor module mount 108. The stator cooling air path 107 is in a spiral ring shape and is inserted into the rare earth permanent magnet motor stator 106, so that the compressed air which is dried and cooled can pass through.
The rare earth permanent magnet motor rotor main shaft 104 is coaxially installed in an inner hole of the rare earth permanent magnet motor stator 106. A mover air gap 105 exists between the rare earth permanent magnet motor and the stator 106. When the rare earth permanent magnet motor is electrified to rotate, the rotating resistance can be reduced and the output efficiency can be improved due to the existence of an air gap. The rotor main shaft 104 of the rare earth permanent magnet motor adopts rare earth permanent magnet materials, and S, N permanent magnets are distributed in a crossed way, so that power is not needed, and the temperature rise and the energy consumption are small during working.
The three-phase winding 103 is used for connecting three-phase power input, is annularly wound in an inner groove of the rare earth permanent magnet motor stator 106 and is used for winding a rotating magnetic field to drive the rotor main shaft 104 of the rare earth permanent magnet motor to rotate.
The permanent magnet motor mover synchronization fans 102 are mounted at both ends of the rare earth permanent magnet motor mover main shaft 104, and rotate synchronously with the rotation thereof. The rotor synchronous fan 102 of the permanent magnet motor has fan blades, and can generate wind power when synchronously rotating, so as to cool the integrated rare earth motor module 1.
The coupling seat 218 is coaxially mounted to the front end of the rare earth permanent magnet motor stator 106. The rotor synchronous fan 102 is positioned through the spigot and has a hollowed-out structure, so that the rotor synchronous fan 102 of the permanent magnet motor can circulate the rotary air flow.
The rare earth motor connection base 214 is coaxially mounted at the front end of the connection shaft base 218. The rare earth motor connecting seat 214 has four openings, a driving shaft thrust bearing 209 is installed in the middle hole, and thrust bearings 205 are installed in 3 holes around. A seal cap 215 is installed at the position where the thrust bearing 205 is installed at the above 3 holes, for preventing the compressed air from leaking out.
The compressor base 202 is mounted to the front end of the rare earth motor connection base 214. Corresponding openings are formed in positions corresponding to the rare earth motor connecting seat 214, the driving shaft hydrodynamic bearing 210 is installed in pairs in the middle hole, and the hydrodynamic bearing 203 is installed in pairs in the surrounding holes.
The thrust bearing fixed end seat 204 is mounted on the front end of the compressor base 202, and is also mounted with the driving shaft thrust bearing 209 and thrust bearing 205 at positions corresponding to the openings of the rare earth motor connecting seat 214.
The driving screw 211 is installed at the center of the compressor base 202, and is located between the pair of driving shaft hydrodynamic bearings 210. The hydrodynamic bearing receives radial forces during operation of the active spiral 211 and reduces rotational friction. The above-mentioned inference bearings mounted at both ends of the driving screw 211 are used for bearing the axial force generated when the driving screw 211 works and reducing the axial friction.
Three driven screws 212 are installed around the driving screw 211 and are used in combination with the hydrodynamic bearing and the thrust bearing.
A sealing ring 213 is installed at the end of the active screw 211 to prevent gas leakage. The coupling 217 is installed between the driving screw 211 and the mover spindle 104 of the rare earth permanent magnet motor, and is used for transmitting the rotation power output by the rare earth motor.
The driving screw gear 208 is mounted on the front end of the driving screw 211, and is used for driving the driven screw gear 206 mounted on the periphery to rotate, thereby linking the three driven screws 212 to rotate together.
A gland 207 is installed at the front end of the thrust bearing fixed end seat 204 for capping the apparatus to prevent gas leakage.
The cool-dry integrated module fan plate 302 is fixedly mounted on the wing plate of the rare earth permanent magnet motor stator 106. The cooling and drying integrated module fan plate 302 is hollow and tubular and overlapped. As compressed air enters the cool drying integrated module fan body 302 via the compressed air outlet pipe 216, it may circulate internally along the hollow tubular mechanism.
The refrigerant of low temperature and low pressure enters the heat exchange circuit module 301 mounted in the cooling/drying integrated module fan body 302 via the refrigerant output pipe 304. The heat exchange circuit module 301 is a circuit module in which the refrigerant is wound around the pipe by bending the pipe, and the refrigerant is passed around the pipe of the heat exchange circuit module 301 to thereby cool itself to the compressed air introduced into the cooling/drying integrated module fan body 302. The compressed air is cooled to separate out water and is discharged by a drain valve.
Compressed air flows out through a dry cooling air outlet pipe 303 mounted at the end of the cool-dry integrated module fan body 302 into the stator cooling air circuit 107 in the rare earth permanent magnet motor stator 106. The refrigerant absorbs heat from the compressed air in the heat exchange circuit module 301, and returns to the scroll refrigerant compressor module 4 again through the refrigerant input pipe 305 at an elevated temperature.
Cross-sectional structure example of integrated rare earth motor module
Fig. 3 is a schematic diagram showing an example of a cross-sectional structure of an integrated rare earth motor module according to an embodiment of the present invention.
As shown in fig. 3, the four-bar screw air compressor module 2 includes: compressed air output head 219
The pretreated air enters the four-bar screw air compressor module 2 through the air main inlet 201. The compressed air is obtained by the screw compression action of the driving screw 211 and the three driven screws 212.
Compressed air is collected by the compressed air outlet head 219 and is output via the compressed air outlet pipe 216 to the cool drying integrated module 3. The compressed air which is cooled by the cooling and drying integrated module 3 and changed into low-temperature drying enters the stator cooling air path 107 to cool the integrated rare earth motor module 1. Finally, the air is discharged from the compressed air main outlet 101.
Structural example of compressor base
Fig. 4 shows an example of a structure of a compressor base according to an embodiment of the present invention.
As shown in fig. 4, the compressor base 202 includes: a screw compression output 220, a primary screw chamber 221, a secondary screw chamber 222.
The compressor base 202 has 4 cavities, centered in the main screw cavity 221, for mounting the above-mentioned main screw 211. Around the main screw cavity 221, 3 cavities are uniformly distributed, which is a sub screw cavity 222 for installing the driven screw 212.
Air enters between the main screw chamber 221 and the auxiliary screw chamber 222 through the 3 air main inlets 201 on the compressor base 202, and is compressed into compressed air by the driving screw 211 and the driven screw 212.
The compressed air is finally output to the 3 cooling and drying integrated modules 3 through 3 spiral compression output ports 220 which are uniformly distributed in a ring shape.
Structural example of rare earth motor base
Fig. 5 shows an example of the structure of the rare earth motor base of the present invention.
As shown in fig. 5, the rare earth permanent magnet motor stator 106 includes: a stator air gap 110, stator winding mounting locations 111, and mounting spigots 112.
The rare earth permanent magnet motor stator 106 has a stator winding mounting position 111 for mounting the three-phase winding 103 to generate a rotating magnetic field. The stator air gap 110 is used to make the rotor main shaft 104 of the rare earth permanent magnet motor to rotate, and receive less resistance. Has a mounting spigot 112 for mounting the coupling socket 218, and positions the inner bore thereof to ensure the coaxiality of the mounting.
Cross-sectional structure example of vortex refrigerant compressor module
Fig. 6 is a schematic diagram showing an example of a cross-sectional structure of the scroll refrigerant compressor module according to the present invention.
As shown in fig. 6, the scroll refrigerant compressor module 4 includes: rolling bearing mounting seat 401, rolling bearing 402, bearing gland 403, sealing ring 404, movable crankshaft 405, fixed scroll 406, movable scroll 407, high-pressure refrigerant isolation chamber 408, refrigerant compression tank 409, refrigerant compression output pipe 410, and refrigerant output head 411
The refrigerant compressing tank 409 is mounted on the other end face of the rare earth permanent magnet motor stator 106. Coaxially mounted with the rare earth permanent magnet motor stator 106. The interior of the stator is provided with a rolling bearing mounting seat 401 which is pressed against the end face of the rare earth permanent magnet motor stator 106.
The rolling bearing 402 is coaxially mounted in the rolling bearing mount 401, and is pressed by a bearing cover 403, and a seal ring 404 seals.
The movable crankshaft 405 is coaxially and directly connected with the mover main shaft 104 of the rare earth permanent magnet motor, and is installed in the rolling bearing 402. When the rotor main shaft 104 of the rare earth permanent magnet motor rotates, the movable crankshaft 405 is driven to synchronously rotate, and the movable vortex 407 is driven by the crankshaft rod to eccentrically rotate around the axis in the fixed vortex 406, so that the effect of compressing the refrigerant is realized.
A high pressure refrigerant isolation chamber 408 is mounted at the front end of the non-orbiting scroll 406 for enclosing and isolating the high and low pressure chambers.
The refrigerant compressed by the interaction of the movable scroll 407 and the fixed scroll 406 is discharged from the refrigerant output head 411 and is transmitted to the remote heat exchange centralized control module 6 through the refrigerant compression output pipe 410.
Heat exchange centralized control module structure example
Fig. 7 shows an example of the structure of the heat exchange centralized control module of the present invention.
As shown in fig. 7, the heat exchange centralized control module 6 includes: heat exchange centralized control box 601, heat exchange mounting seat 602, heat exchange fan 603, refrigerant heat exchange module 604, mounting seat body 605 and centralized control module area 606
The mounting base 605 is mounted in a position where air circulation is unobstructed. Above which is installed a rainproof outdoor heat exchange centralized control box 601 with higher protection level.
The heat exchange mounting seat 602 is mounted on the upper portion of the heat exchange centralized control box 601 and is used for fixedly mounting the heat exchange fan 603.
The refrigerant transmitted through the refrigerant compressing output pipe 410 enters the refrigerant heat exchanging module 604 installed at the lower part of the heat exchanging centralized control box 601, and is ventilated and radiated by the heat exchanging fan 603.
The centralized control module area 606 adopted by the control system is arranged in the heat exchange centralized control box 601 and mainly comprises an intelligent control development board and a variable frequency control module.
The working principle of the invention is as follows:
The centralized control module area 606 used in the present invention comprises an intelligent control development board, and can remotely receive instructions and remotely control the operation of the integrated air compressor system. The flow and the power of the system operation can be automatically adjusted by using the flow, the pressure detection module and the temperature detection sensor which are arranged among all pipelines of the integrated air compressor system.
Because the integrated rare earth motor module 1 is adopted for main driving, the variable frequency control module is adopted for starting. Compared with the traditional asynchronous motor, the rotor main shaft 104 of the rare earth permanent magnet motor of the integrated rare earth motor module 1 is formed by arranging rare earth permanent magnet materials according to different magnetic poles in a crossed and inlaid mode, exciting current is not needed, and therefore power consumption and temperature rise are small. When in operation, the integrated rare earth motor module 1 is used as a power source to drive the four-bar type spiral air compressor module 2 and the vortex refrigerant compressor module 4 simultaneously, and compressed air output and refrigerant compression circulation are respectively completed. The compressed air and the refrigerant are converged into the cooling and drying integrated module 3 through the pipeline, so that the compressed air is cooled and dried, and the cooled and cooled effect of the low-temperature dried compressed air is realized through the internal air loop of the integrated rare earth motor module 1. And finally outputting available compressed air.
First, the integrated rare earth motor module 1 is controlled to start in a variable frequency mode. Because of the variable frequency control, the starting current is smaller to drive the asynchronous motor, and the energy-saving effect is achieved.
First, the power driving part:
Further, the three phases are electrically connected, and a rotating magnetic field is generated by the three-phase windings 103 in the rare earth permanent magnet motor stator 106, so as to drive the rotor main shaft 104 of the rare earth permanent magnet motor to rotate synchronously.
Further, the rolling bearing 402, the driving shaft hydrodynamic bearing 210, the rotor air gap 105 and the stator air gap 110, which are coaxially connected, play a role in limiting the radial rotation of the rotor main shaft 104 of the rare earth permanent magnet motor and reducing the rotation friction.
Refrigerant refrigeration cycle part:
further, the mover spindle 104 of the rare earth permanent magnet motor drives the moving crankshaft 405 to rotate through coaxial connection.
Further, the movable crankshaft 405 drives the movable scroll 407 to eccentrically rotate in the fixed scroll 406, and the refrigerant entering the scroll refrigerant compressor module 4 is compressed into a high-pressure high-temperature liquid refrigerant by utilizing the principle of scroll compression.
Further, the refrigerant is delivered into the refrigerant heat exchange module 604 in the heat exchange centralized control module 6 through the refrigerant delivery head 411 and the refrigerant compression delivery pipe 410, and the air flow generated by the heat exchange fan 603 dissipates heat and lowers temperature of the refrigerant.
Further, the high-pressure refrigerant having a reduced temperature flows back to the expansion valve 5 via a pipe line to become low-pressure gas, and at the same time, the temperature drops due to the pressure drop.
Further, the low-temperature refrigerant enters the heat exchange circuit module 301 in the cooling and drying integrated module 3 through the refrigerant output pipe 304, absorbs the heat of the compressed air and then rises again. Then, the refrigerant enters the refrigerant compression tank 409 of the scroll refrigerant compressor module 4 again through the refrigerant input pipe 305, and is compressed by the relative movement of the movable scroll 407 in the fixed scroll 406.
Further, since the system is configured with 3 sets of the above-described cool-dry integrated modules 3. According to the system requirement and the data fed back by the temperature sensor, the intelligent control development board can control any switch of the cooling and drying integrated module 3, so as to adjust the refrigerant circulation flow and the refrigerant output temperature.
Compressed air output part:
Further, the mover spindle 104 of the rare earth permanent magnet motor drives the driving screw 211 to rotate through the coupling 217.
Further, the driven screw gear 206 mounted on the driven screw 212 is rotated by the driving screw gear 208 mounted on the driving screw 211. Thereby causing any one of the driving screw 211 and the three driven screws 212 to rotate in opposite directions.
Further, air enters between the main screw chamber 221 and the auxiliary screw chamber 222 through the 3 air inlets 201 on the compressor base 202, and is compressed into compressed air by the driving screw 211 and the driven screw 212.
Further, compared with the traditional double-screw air compressor, the effective compression volume of the double-screw air compressor is only 2 overlapping parts among screw rods. The 4-rod spiral structure adopted by the invention utilizes 2 times of volume to generate 3 times of effective compression volume of the transmission air compressor. The compression efficiency is enlarged by 1.5 times, and a larger compression flow is generated by a smaller volume.
Further, according to the system requirement, the intelligent control development board can control any one of the 3 air inlet openings 201 to control the air inlet flow.
Further, according to the system requirement, the intelligent control development board can control any one of the 3 spiral compression output ports 220 to be opened and closed, so as to control the air outlet flow and the air outlet pressure.
And (3) cooling and drying part:
Further, compressed air enters the 3 sets of the above-described cool-drying integrated modules 3 via the 3 above-described compressed air output pipes 216, respectively. The low-temperature refrigerant respectively enters 3 groups of the cooling and drying integrated modules 3 through 3 refrigerant output pipes 304.
Further, the compressed air and the refrigerant pass through different cabins and pipelines of the cooling and drying integrated module 3, and the compressed air is cooled by the low-temperature refrigerant.
Further, the dew point temperature of the compressed air is lowered, and water is easily separated out with the lowering of the temperature, so that the air is dried. The compressed air is cooled by the refrigerant, water is separated out, and the water is discharged by the drain valve, so that the cooling and drying of the compressed air are completed.
Motor cooling protection part:
Further, the compressed air dried at low temperature enters the stator cooling air path 107 of the rare earth permanent magnet motor stator 106 through the drying cooling air output pipe 303. The temperature of the integrated rare earth motor module 1 during working and running is reduced, and the temperature is prevented from being excessively high.
Further, the compressed air is output from the compressed air main air outlet 101 and supplied to the pneumatic equipment.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. The utility model provides an integrated air compressor machine of application rare earth motor, includes integrated rare earth motor module (1), expansion valve (5) and heat exchange centralized control module, and the outside equiangular displacement of integrated rare earth motor module (1) is provided with three sets of cooling and drying integrated module (3), and the both ends of integrated rare earth motor module (1) are provided with four pole type screw air compressor module (2) and vortex refrigerant compressor module (4) respectively, a serial communication port, integrated rare earth motor module (1) is including compressor base (202), and the inside of compressor base (202) is provided with hydrodynamic bearing (203), and one end of compressor base (202) is provided with thrust bearing stiff end seat (204), and the inside cooperation thrust bearing stiff end seat (204) of compressor base (202) is provided with thrust bearing (205), and the left end of compressor base (202) is provided with gland (207), and the right-hand member cooperation of compressor base (202) is provided with sealing ring (213), and sealing end cover (215) are connected with cooling and drying integrated module (3) through compressed air output tube (216), and cooling and drying integrated module (217) are provided with shaft coupling (218), compressed air output pipe (216) and four-bar type screw air compressor module (2) between connect be provided with compressed air output head (219), the inside of four-bar type screw air compressor module (2) is provided with main screw chamber (221), connect main screw chamber (221) to be provided with screw compression delivery outlet (220) and vice screw chamber (222) respectively, one side of compressor base (202) is provided with air total air inlet (201), the right-hand member outside cooperation of compressor base (202) is provided with rare earth motor connecting seat (214), integrated rare earth motor module (1) includes compressed air total gas outlet (101), and rare earth motor module mount pad (108) are installed to one side of integrated rare earth motor module (1), the inside of integrated rare earth motor module (1) is provided with rare earth permanent magnet motor rotor main shaft (104) and rotor air gap (105), the outside cooperation of rare earth permanent magnet motor rotor main shaft (104) is provided with three-phase winding (103), one end of rare earth permanent magnet motor rotor main shaft (104) is provided with permanent magnet motor rotor synchronous fan (102), the outside of rare earth permanent magnet motor rotor main shaft (104) cooperation is provided with rare earth motor stator (106), the outside of rare earth motor stator (106) is provided with rare earth stator air gap (106) outside stator (106), stator cooling gas circuit (107) is connected with cooling and drying integrated module (3) through dry cooling compressed air inlet (109), cooperation is provided with stator winding mount pad (111) between stator air gap (110), the one end inboard of tombarthite permanent magnet motor stator (106) is provided with installation tang (112), cooling and drying integrated module (3) are including cooling and drying integrated module fan plate body (302), cooling and drying integrated module fan plate body (302) inside is provided with heat exchange circuit module (301), cooling and drying integrated module fan plate body's (302) one end all communicates with integrated tombarthite motor module (1) through dry cooling air output pipe (303), cooperation drying cooling air output pipe (303) all is provided with refrigerant output pipe (304) and refrigerant input pipe (305), vortex refrigerant compressor module (4) are including antifriction bearing (402) mount pad (401), the inside of antifriction bearing (402) mount pad (401) is provided with antifriction bearing (402), cooperation antifriction bearing (402) are installed bearing gland (403) and sealing washer (404), connect antifriction bearing (402) to be provided with movable crankshaft (405), the inside of antifriction bearing (402) is installed and is provided with heat exchange module (601), the lower extreme of heat transfer centralized control case (601) is provided with mount pad body (605), and the upper half of heat transfer centralized control case (601) is provided with a plurality of heat transfer fans (603) through heat transfer mount pad (602).
2. An integrated air compressor using a rare earth motor according to claim 1, wherein a driven screw (212) gear (206) and a driving screw gear (208) are disposed in the compressor base (202) on the right side of the gland (207).
3. An integrated air compressor employing a rare earth motor according to claim 1 or 2, characterized in that the internal intermediate position of the compressor base (202) is provided with a driving helical gear (208) and a driving shaft hydrodynamic bearing (210).
4. An integrated air compressor using rare earth motors according to claim 3, characterized in that the driving screw (211) and the driven screw (212) are provided in cooperation with the driving screw gear (208) and the driving shaft hydrodynamic bearing (210), respectively.
5. An integrated air compressor using a rare earth motor according to claim 1, wherein one end of the rolling bearing (402) mounting seat (401) is provided with a refrigerant compression tank (409).
6. The integrated air compressor using a rare earth motor according to claim 5, wherein a high-pressure refrigerant isolation cabin (408) is provided in the refrigerant compression tank (409), and a refrigerant compression output pipe (410) is provided at one end of the refrigerant compression tank (409) through a refrigerant output head (411).
7. The integrated air compressor using the rare earth motor according to claim 1, wherein a refrigerant heat exchange module (604) is embedded in the lower half part of the heat exchange centralized control box (601), and a centralized control module area (606) is arranged in the heat exchange centralized control box (601).
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| CN211288081U (en) * | 2019-09-24 | 2020-08-18 | 浙江浙能技术研究院有限公司 | Integrated air compressor using rare earth motor |
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| JP2000213464A (en) * | 1999-01-20 | 2000-08-02 | Hokuetsu Kogyo Co Ltd | Engine driven air compressor |
| CN202707491U (en) * | 2012-07-18 | 2013-01-30 | 无锡五洋赛德压缩机有限公司 | Constant pressure variable intelligent air compressor |
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