CN115596549A - Natural gas combustion hybrid variable frequency motor assembly and working method thereof - Google Patents
Natural gas combustion hybrid variable frequency motor assembly and working method thereof Download PDFInfo
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- CN115596549A CN115596549A CN202211569089.4A CN202211569089A CN115596549A CN 115596549 A CN115596549 A CN 115596549A CN 202211569089 A CN202211569089 A CN 202211569089A CN 115596549 A CN115596549 A CN 115596549A
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- motor body
- air outlet
- plugging
- natural gas
- shell
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/32—Engines with pumps other than of reciprocating-piston type
- F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
- F02B33/40—Engines with pumps other than of reciprocating-piston type with rotary pumps of non-positive-displacement type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/316—Guiding of the slide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0668—Sliding valves
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention belongs to the technical field of variable frequency motors, and particularly relates to a natural gas combustion hybrid variable frequency motor assembly and a working method thereof, wherein the natural gas combustion hybrid variable frequency motor assembly comprises: when the motor body is in a starting state, the air outlet is blocked by the blocking unit; when the motor body is switched from a starting state to a normal working state, a magnetic field generated by the motor body attracts the plugging unit to move on the shell so as to drive the plugging unit to open the air outlet, and air accumulated at the air outlet forms airflow which is blown into the combustion chamber to be mixed with natural gas; when the motor body is switched to a shutdown state from a normal working state, the blocking unit resets to block the air outlet so as to prevent carbon deposited on the outer side wall of the water tank in the combustion chamber from entering the machine shell; the invention can prevent natural gas in the combustion chamber from flowing backwards into the shell, improve the production safety, prevent carbon deposit from entering the shell after the motor body is shut down, and play a role in protecting the motor body.
Description
Technical Field
The invention belongs to the technical field of variable frequency motors, and particularly relates to a natural gas combustion hybrid variable frequency motor assembly and a working method thereof.
Background
Natural gas burning mixes inverter motor needs low-speed operation a period of time when starting, when natural gas burning mixes inverter motor and is in the starting condition, the air outlet department wind-force of casing is not enough, simultaneously because the air outlet of casing will communicate with the combustion chamber, the natural gas is gone into to the drum in the combustion chamber, cause air outlet department pressure to be less than the combustion chamber internal pressure, the natural gas can follow in the air outlet backward flow entering casing of casing in the combustion chamber, and then flow into indoor from the air intake of casing, not only can cause the natural gas extravagant, it also can influence human safety to reach a definite value when indoor natural gas content simultaneously.
Simultaneously because oxygen burning in natural gas and the air in the combustion chamber, can carry the long-pending charcoal on the water tank lateral wall, and can drop the casing behind the long-pending charcoal blocking in, with the long-pending charcoal striking of blocking when motor body rotates at a high speed, can influence motor body's life to likepowder long-pending charcoal is attached to on motor body, causes motor body weight to increase, and the power consumption increases when motor body rotates at a high speed, takes place electric current stall even and damages motor body.
Therefore, it is desirable to develop a new natural gas burning hybrid inverter motor assembly and a method for operating the same to solve the above problems.
Disclosure of Invention
The invention aims to provide a natural gas combustion mixing variable frequency motor assembly and a working method thereof.
In order to solve the technical problem, the invention provides a natural gas combustion mixing variable frequency motor assembly, which comprises: the motor comprises a shell, a motor body and a plugging unit; the motor body is movably arranged in the shell, and the plugging unit is movably arranged on the shell; an air inlet is formed in the side face of the shell, an air outlet is formed in the top of the shell, and the air outlet is connected with the combustion chamber; when the motor body is in a starting state, the air outlet is blocked by the blocking unit to prevent natural gas in the combustion chamber from entering the shell, and air sucked from the air inlet by the motor body is accumulated at the air outlet; when the motor body is switched from a starting state to a normal working state, a magnetic field generated by the motor body attracts the plugging unit to move on the shell so as to drive the plugging unit to open the air outlet, and air accumulated at the air outlet forms airflow which is blown into the combustion chamber to be mixed with natural gas; and when the motor body is switched to a shutdown state from a normal working state, the plugging unit resets to plug the air outlet so as to block carbon deposited on the outer side wall of the water tank in the combustion chamber from entering the machine shell.
Further, the motor body includes: the stator coil, the iron core, the rotor and the frequency converter are positioned in the shell; the electronic coil is sleeved on the iron core, the rotor movably penetrates through the iron core, a rotating part of the rotor is provided with a plurality of fan blades, and the electronic coil is connected with a power supply through a frequency converter; when the frequency converter is in a starting state, the frequency converter continuously enhances the output current of the stator coil and the iron core to form a continuously enhanced magnetic field; until the frequency converter is switched from a starting state to a normal working state, a magnetic field generated by the stator coil and the iron core attracts the plugging unit to move on the shell; after the frequency converter is electrified, the stator coil and the iron core form a magnetic field to drive the rotor to rotate so as to drive the upper fan blade of the rotor to rotate, so that air is sucked from the air inlet and blown towards the air outlet.
Further, the mouthpiece unit includes: a moving member and a plugging member; the plugging member is arranged in parallel with the air outlet and is positioned on the same horizontal plane with the air outlet, the moving member is connected with the plugging member and is arranged perpendicular to the plugging member, and the moving member is arranged towards the motor body; when the moving member overcomes the elastic force under the action of the magnetic field, the moving member moves towards the motor body to drive the blocking member to open the air outlet, or when the moving member overcomes the magnetic field or the magnetic field disappears under the action of the elastic force, the moving member moves away from the motor body to drive the blocking member to block the air outlet.
Further, the moving member includes: a magnetic plate and at least two elastic guide members; the two elastic guide parts are arranged in parallel and respectively movably penetrate through the magnetic plates, the two elastic guide parts are respectively positioned on two sides of the motor body, and the magnetic plates are connected with the plugging member; when the magnetic plate overcomes the elasticity of the two elastic guide parts under the action of the magnetic field, the magnetic plate moves towards the motor body, or when the magnetic plate overcomes the magnetic field or the magnetic field disappears under the action of the elasticity of the two elastic guide parts, the magnetic plate moves away from the motor body.
Further, the elastic guide member includes: a guide rod and a guide spring; two ends of the guide rod are respectively fixed with the shell, the guide spring is sleeved on the guide rod, one end of the guide spring is connected with the end part of the guide rod, and the other end of the guide spring is connected with the magnetic plate; when the magnetic plate overcomes the elastic force of the guide spring under the action of the magnetic field, the magnetic plate extrudes the guide spring to move towards the motor body along the length direction of the guide rod, or when the magnetic plate overcomes the magnetic field or the magnetic field disappears under the action of the elastic force of the guide spring, the guide spring pushes the magnetic plate to move away from the motor body along the length direction of the guide rod.
Further, the orifice member includes: a plugging rod and a plugging plate; the top of the magnetic plate is connected with one end of the plugging rod, and the other end of the plugging rod is connected with the plugging plate; the plugging rod is positioned on one side of the air outlet, and the air outlet is positioned on the moving path of the plugging plate; the plugging rod moves along one side of the air outlet under the action of the magnetic plate so as to drive the plugging plate to plug the air outlet or move away from the air outlet.
Further, the orifice member further includes: a moving guide rail; the movable guide rail is arranged in parallel to the mouth plugging rod and is fixed on the other side of the air outlet; a moving groove matched with the moving guide rail is formed in the plugging plate, namely, the plugging plate horizontally moves under the guide of the moving guide rail.
Furthermore, a chip removal port is formed in the bottom of the machine shell; a chip removal plate is arranged at the bottom of the magnetic plate, and the chip removal plate and the chip removal port are positioned on the same horizontal plane; when the motor body is in a starting state, the chip removal plate opens the chip removal port, and the motor body sucks air from the chip removal port to accumulate at the air outlet; when the motor body is switched from a starting state to a normal working state, the magnetic plate drives the chip removal plate to block the chip removal port so as to prevent the motor body from sucking air from the chip removal port; when the motor body is switched to a shutdown state from a normal working state, the magnetic plate resets to drive the chip removal plate to move away from the chip removal port, so that the carbon deposit scattered in the shell is discharged from the chip removal port.
Further, the top surface of the plugging plate is arranged in a slope manner so as to guide accumulated carbon falling on the plugging plate to slide to a collection area.
In another aspect, the present invention provides a working method using the natural gas combustion hybrid variable frequency motor assembly as described above, which includes: when the motor body is in a starting state, the air outlet is blocked by the blocking unit to prevent natural gas in the combustion chamber from entering the shell, and air sucked from the air inlet by the motor body is accumulated at the air outlet; when the motor body is switched from a starting state to a normal working state, a magnetic field generated by the motor body attracts the plugging unit to move on the shell so as to drive the plugging unit to open the air outlet, and air accumulated at the air outlet forms airflow which is blown into the combustion chamber to be mixed with natural gas; and when the motor body is switched to a shutdown state from a normal working state, the plugging unit resets to plug the air outlet so as to prevent carbon deposit on the outer side wall of the water tank in the combustion chamber from entering the machine shell.
The invention has the beneficial effects that the air outlet can be blocked by arranging the blocking unit when the motor body rotates at a low speed in a starting state, natural gas in a combustion chamber is prevented from flowing backward into the machine shell, the production safety is improved, the pressure is continuously increased at the air outlet, airflow can be formed when the motor body is switched from the starting state to a normal working state and can be blown into the combustion chamber, the natural gas can be prevented from entering the machine shell, meanwhile, powdery carbon deposit can be prevented from entering the machine shell, the pressure at the air outlet can be ensured when the motor body is in the normal working state, the blowing effect is formed, and the air outlet is blocked by the blocking unit again after the motor body is stopped, so that the carbon deposit on the outer side wall of the water tank in the combustion chamber is prevented from entering the machine shell, and the effect of protecting the motor body is achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a block diagram of a natural gas fired hybrid inverter motor assembly of the present invention;
fig. 2 is a structural view of a motor body of the present invention;
FIG. 3 is a block diagram of the enclosure of the present invention;
FIG. 4 is a block diagram of a plugging unit of the present invention;
FIG. 5 is a block diagram of the moving member of the present invention;
FIG. 6 is a block diagram of a closure member of the present invention;
fig. 7 is a block diagram of the chip ejector plate of the present invention;
fig. 8 is a structural view of the moving guide of the present invention.
In the figure:
1. a housing; 11. an air inlet; 12. an air outlet; 13. a chip removal port; 14. a partition plate;
2. a motor body; 21. a stator coil; 22. an iron core; 23. a rotor; 24. a fan blade;
3. a plugging unit; 31. a moving member; 311. a magnetic plate; 312. an elastic guide member; 3121. a guide rod; 3122. a guide spring; 313. a chip removal plate; 32. a plugging member; 321. a plugging rod; 322. a plugging plate; 323. the guide rail is moved.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
In the present embodiment, as shown in fig. 1 to 8, the present embodiment provides a natural gas combustion hybrid variable frequency motor assembly, which includes: the motor comprises a shell 1, a motor body 2 and a plugging unit 3; the motor body 2 is movably arranged in the machine shell 1, and the plugging unit 3 is movably arranged on the machine shell 1; an air inlet 11 is formed in the side surface of the machine shell 1, an air outlet 12 is formed in the top of the machine shell 1, and the air outlet 12 is connected with a combustion chamber; when the motor body 2 is in a starting state, the air outlet 12 is blocked by the blocking unit 3 to prevent natural gas in the combustion chamber from entering the machine shell 1, and air sucked by the motor body 2 from the air inlet 11 is accumulated at the air outlet 12; when the motor body 2 is switched from a starting state to a normal working state, the magnetic field generated by the motor body 2 attracts the plugging unit 3 to move on the machine shell 1 so as to drive the plugging unit 3 to open the air outlet 12, and the air accumulated at the air outlet 12 forms an airflow which is blown into a combustion chamber to be mixed with natural gas; and when motor body 2 switches over to the off-state from normal operating condition, stifled mouthful unit 3 resets and blocks up air outlet 12 to hinder in carbon deposit gets into in the casing 1 on the combustion chamber inner water tank lateral wall.
In this embodiment, this embodiment is through setting up stifled mouthful unit 3, can plug up air outlet 12 when motor body 2 is in the on-state low-speed rotation, avoid in the combustion chamber natural gas backward flow gets into casing 1, the safety in production is improved, and last pressure boost in air outlet 12 department, switch to normal operating condition from the on-state at motor body 2 and can form the air current and blow into in the combustion chamber, not only can hinder in the natural gas gets into casing 1, also can hinder likepowder long-pending charcoal and get into in casing 1 simultaneously, can guarantee air outlet 12 department pressure at motor body 2 in normal operating condition, form the effect of blowing, and after motor body 2 shuts down, stifled mouthful unit 3 plugs up air outlet 12 once more, prevent long-pending charcoal on the water tank lateral wall in the combustion chamber and get into in casing 1, play the effect of protection motor body 2.
In the present embodiment, the motor body 2 includes: a stator coil 21, an iron core 22, a rotor 23 and a frequency converter which are positioned in the machine shell 1; the electronic coil is sleeved on the iron core 22, the rotor 23 movably penetrates through the iron core 22, a plurality of fan blades 24 are arranged at a rotating part of the rotor 23, and the electronic coil is connected with a power supply through a frequency converter; when the frequency converter is in a starting state, the output current of the frequency converter to the stator coil 21 and the iron core 22 is continuously enhanced to form a continuously enhanced magnetic field; until the frequency converter is switched from a starting state to a normal working state, the magnetic field generated by the stator coil 21 and the iron core 22 attracts the plugging unit 3 to move on the shell 1; after the frequency converter is powered on, the stator coil 21 and the iron core 22 form a magnetic field to drive the rotor 23 to rotate, so as to drive the fan blades 24 on the rotor 23 to rotate, and air is sucked from the air inlet 11 and blown towards the air outlet 12.
In this embodiment, a partition plate 14 is disposed in the casing 1 to seal the fan blades 24 to form a sealed cavity, and the air inlet 11 and the air outlet 12 are communicated with the sealed cavity.
In this embodiment, when the frequency converter is in the start state, because a heat engine is needed, the current output by the frequency converter to the electronic coil and the iron core 22 is not too large, the rotation speed of the rotor 23 is not too fast, and the wind pressure blown out from the air outlet 12 is not too large, if a traditional variable frequency motor is adopted, the natural gas in the combustion chamber flows back into the motor body 2, and is emitted indoors, the environment is affected while the natural gas is wasted, and the personal safety is seriously affected, and the problem can be effectively solved by arranging the blocking unit 3 in the natural gas combustion hybrid variable frequency motor assembly, when the frequency converter is in the start state, the stator coil 21 and the iron core 22 cannot form a too strong magnetic field, and the magnetic field at this time cannot pull the blocking unit 3 to move, so that the blocking unit 3 blocks the air outlet 12, meanwhile, air is accumulated at the air outlet 12, after the heat engine of the frequency converter is finished, the frequency converter is switched to a normal working state, at the moment, the stator coil 21, the magnetic field formed by the iron core 22 can pull the plugging unit 3 to move, the plugging unit 3 is moved away from the air outlet 12, the air pressure blown out from the air outlet 12 is enough, meanwhile, the air accumulated at the air outlet 12 forms air flow to be flushed into the combustion chamber, natural gas and accumulated carbon on the combustion chamber side at the air outlet 12 can be blown into the combustion chamber, meanwhile, the air pressure at the air outlet 12 can block the natural gas and the accumulated carbon enters the machine shell 1, finally, after the frequency converter is shut down, the plugging unit 3 is reset to block the air outlet 12 again, the accumulated carbon on the outer side wall of the water tank in the combustion chamber can be prevented from entering the machine shell 1, and the effect of protecting the motor body 2 is achieved.
In the present embodiment, the plugging unit 3 includes: a moving member 31 and a plugging member 32; the plugging member 32 is arranged parallel to the air outlet 12 and is positioned on the same horizontal plane with the air outlet 12, the moving member 31 is connected with the plugging member 32 and is arranged perpendicular to the plugging member 32, and the moving member 31 is arranged towards the motor body 2; when the moving member 31 overcomes the elastic force under the action of the magnetic field, the moving member 31 moves toward the motor body 2 to drive the blocking member 32 to open the air outlet 12, or when the moving member 31 overcomes the magnetic field or the magnetic field disappears under the action of the elastic force, the moving member 31 moves away from the motor body 2 to drive the blocking member 32 to block the air outlet 12.
In the present embodiment, the moving member 31 mainly plays a role of moving the blocking member 32, and the blocking member 32 mainly plays a role of opening the air outlet 12 or blocking the air outlet 12.
In the present embodiment, the moving member 31 includes: a magnetic plate 311 and at least two elastic guide members 312; the two elastic guiding components 312 are arranged in parallel and respectively movably pass through the magnetic plate 311, the two elastic guiding components 312 are respectively positioned at two sides of the motor body 2, and the magnetic plate 311 is connected with the plugging member 32; when the magnetic plate 311 overcomes the elastic force of the two elastic guiding members 312 under the action of the magnetic field, the magnetic plate 311 moves toward the motor body 2, or when the magnetic plate 311 overcomes the magnetic field or the magnetic field disappears under the action of the elastic force of the two elastic guiding members 312, the magnetic plate 311 moves away from the motor body 2.
In this embodiment, the magnetic field formed by the stator coil 21 and the iron core 22 can generate an attraction force on the magnetic plate 311, and the strength of the magnetic field is controlled by the output current of the inverter, the attraction force is proportional to the strength of the magnetic field, when the inverter is in a start-up state or a stop state, the attraction force is smaller than the elastic force of the two elastic guiding components 312, the magnetic field cannot attract the magnetic plate 311 to move toward the motor body 2, or the magnetic plate 311 is reset to be away from the motor body 2 under the action of the elastic force; when the frequency converter is switched from the starting state to the normal working state, the attraction force is larger than the elastic force of the two elastic guide parts 312, and the magnetic field attracts the magnetic plate 311 to move towards the motor body 2.
In the present embodiment, the magnetic plate 311 may be a ferrous alloy plate.
In this embodiment, the elastic guide member 312 includes: a guide lever 3121 and a guide spring 3122; both ends of the guide rod 3121 are respectively fixed with the cabinet 1, the guide spring 3122 is sleeved on the guide rod 3121, and one end of the guide spring 3122 is connected with the end of the guide rod 3121, the other end of the guide spring 3122 is connected with the magnetic plate 311; when the magnetic plate 311 overcomes the elastic force of the guide spring 3122 under the action of the magnetic field, the magnetic plate 311 presses the guide spring 3122 to move toward the motor body 2 along the length direction of the guide rod 3121, or when the magnetic plate 311 overcomes the magnetic field or the magnetic field disappears under the action of the elastic force of the guide spring 3122, the guide spring 3122 pushes the magnetic plate 311 to move away from the motor body 2 along the length direction of the guide rod 3121.
In the present embodiment, the guide lever 3121 mainly functions to guide the movement of the magnetic plate 311 toward the motor body 2 or away from the motor body 2, and the guide spring 3122 provides an elastic force to the magnetic plate 311, and the change of the state of the guide spring 3122 is determined by the operating state of the motor body 2.
In the present embodiment, the orifice member 32 includes: a plugging rod 321 and a plugging plate 322; the top of the magnetic plate 311 is connected with one end of a plugging rod 321, and the other end of the plugging rod 321 is connected with a plugging plate 322; the blocking rod 321 is located at one side of the air outlet 12, and the air outlet 12 is located on a moving path of the blocking plate 322; the blocking rod 321 is driven by the magnetic plate 311 to move along one side of the air outlet 12, so as to drive the blocking plate 322 to block the air outlet 12 or move away from the air outlet 12.
In this embodiment, the plugging rod 321 functions to connect the plugging plate 322 and the magnetic plate 311, and meanwhile, the plugging rod 321 does not block the air outlet 12, and the plugging plate 322 and the magnetic plate 311 are spatially folded, so that the volume of the device can be saved.
In this embodiment, the orifice member 32 further includes: a moving guide 323; the movable guide rail 323 is arranged in parallel with the plugging rod 321 and fixed at the other side of the air outlet 12; a moving groove matched with the moving guide rail 323 is formed in the blocking plate 322, that is, the blocking plate 322 moves horizontally under the guide of the moving guide rail 323.
In this embodiment, the moving guide 323 is fixed to the housing 1, and the moving guide 323 mainly functions as a guide, so that the movement stability of the blocking plate 322 can be improved.
In the embodiment, the bottom of the housing 1 is provided with a chip removal port 13; a chip removal plate 313 is arranged at the bottom of the magnetic plate 311, and the chip removal plate 313 and the chip removal port 13 are positioned on the same horizontal plane; when the motor body 2 is in a starting state, the chip removal plate 313 opens the chip removal port 13, and the motor body 2 sucks air from the chip removal port 13 to accumulate at the air outlet 12; when the motor body 2 is switched from the starting state to the normal working state, the magnetic plate 311 drives the chip removal plate 313 to block the chip removal port 13, so as to prevent the motor body 2 from sucking air from the chip removal port 13; when the motor body 2 is switched to the shutdown state from the normal working state, the magnetic plate 311 resets to drive the chip removal plate 313 to move away from the chip removal port 13, so that carbon deposited in the machine shell 1 scattered is discharged from the chip removal port 13.
In this embodiment, the exhaust port 13 communicates with the sealed chamber.
In this embodiment, when the motor body 2 is in the start state, the chip removal plate 313 opens the chip removal port 13 under the driving of the magnetic plate 311, which is equivalent to simultaneously supplying air from the air inlet 11 and the chip removal port 13, and increasing the air pressure at the air outlet 12, which can accelerate the switching of the motor body 2 from the start state to the normal working state, and after the motor body 2 enters the normal working state, the air pressure at the air outlet 12 is already stable, so that the chip removal port 13 needs to be blocked, and the chip removal plate 313 just blocks the chip removal port 13 under the driving of the magnetic plate 311, which plays a role in stabilizing the output of the air pressure, and because scattered carbon deposit may enter the casing 1, the chip removal port 13 needs to be opened in the stop state of the motor body 2, the inner side wall of the casing 1 is arranged in an arc surface, and the chip removal port 13 is located at the lowest position of the arc surface, and the carbon deposit moves from the inner cavity of the casing 1 and the arc surface toward the chip removal port 13, and can be smoothly discharged along with the opening of the chip removal port 13 by the chip removal plate 313.
In this embodiment, the top surface of the port plate 322 is sloped to guide the accumulated carbon falling on the port plate 322 to slide to a collection area.
In this embodiment, the long-pending charcoal is piled up on stifled mouthful board 322, simultaneously because the lowest of slope sets up towards the collection area, the long-pending charcoal is along with the slope landing collection area, conveniently clears up the long-pending charcoal.
Example 2
On the basis of embodiment 1, the present embodiment provides an operating method using the natural gas combustion hybrid inverter motor assembly provided in embodiment 1, which includes: when the motor body 2 is in a starting state, the air outlet 12 is blocked by the blocking unit 3 to prevent natural gas in the combustion chamber from entering the machine shell 1, and air sucked from the air inlet 11 by the motor body 2 is accumulated at the air outlet 12; when the motor body 2 is switched from the starting state to the normal working state, the magnetic field generated by the motor body 2 attracts the plugging unit 3 to move on the machine shell 1 so as to drive the plugging unit 3 to open the air outlet 12, and the air accumulated at the air outlet 12 forms airflow and is blown into the combustion chamber to be mixed with natural gas; and when the motor body 2 is switched to the shutdown state from the normal working state, the plugging unit 3 resets to plug the air outlet 12, so as to prevent carbon deposits on the outer side wall of the water tank in the combustion chamber from entering the machine shell 1.
In summary, the air outlet can be blocked by arranging the blocking unit when the motor body rotates at a low speed in a starting state, natural gas in the combustion chamber is prevented from flowing backward into the casing, production safety is improved, pressure is continuously increased at the air outlet, airflow can be formed when the motor body is switched from the starting state to a normal working state to be blown into the combustion chamber, natural gas can be prevented from entering the casing, meanwhile, powdery carbon deposits can be prevented from entering the casing, the pressure at the air outlet can be ensured when the motor body is in the normal working state, a blowing effect is formed, the air outlet is blocked by the blocking unit after the motor body is stopped, the carbon deposits on the outer side wall of the water tank in the combustion chamber are prevented from entering the casing, and the effect of protecting the motor body is achieved.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A natural gas combustion hybrid variable frequency motor assembly, comprising:
the motor comprises a shell, a motor body and a plugging unit; wherein
The motor body is movably arranged in the shell, and the plugging unit is movably arranged on the shell;
an air inlet is formed in the side face of the shell, an air outlet is formed in the top of the shell, and the air outlet is connected with the combustion chamber;
when the motor body is in a starting state, the air outlet is blocked by the blocking unit to prevent natural gas in the combustion chamber from entering the shell, and air sucked from the air inlet by the motor body is accumulated at the air outlet;
when the motor body is switched from a starting state to a normal working state, a magnetic field generated by the motor body attracts the plugging unit to move on the shell so as to drive the plugging unit to open the air outlet, and air accumulated at the air outlet forms airflow which is blown into the combustion chamber to be mixed with natural gas; and
when the motor body is switched to a shutdown state from a normal working state, the plugging unit resets to plug the air outlet so as to block carbon deposited on the outer side wall of the water tank in the combustion chamber from entering the machine shell.
2. The natural gas fired hybrid variable frequency motor assembly of claim 1,
the motor body includes: the stator coil, the iron core, the rotor and the frequency converter are positioned in the shell;
the electronic coil is sleeved on the iron core, the rotor movably penetrates through the iron core, a rotating part of the rotor is provided with a plurality of fan blades, and the electronic coil is connected with a power supply through a frequency converter;
when the frequency converter is in a starting state, the frequency converter continuously enhances the output current of the stator coil and the iron core to form a continuously enhanced magnetic field;
until the frequency converter is switched from a starting state to a normal working state, a magnetic field generated by the stator coil and the iron core attracts the plugging unit to move on the shell;
after the frequency converter is electrified, the stator coil and the iron core form a magnetic field to drive the rotor to rotate so as to drive the upper fan blade of the rotor to rotate, so that air is sucked from the air inlet and blown towards the air outlet.
3. The natural gas fired hybrid variable frequency motor assembly of claim 1,
the plugging unit includes: a moving member and a plugging member;
the plugging member is arranged in parallel with the air outlet and is positioned on the same horizontal plane with the air outlet, the moving member is connected with the plugging member and is arranged perpendicular to the plugging member, and the moving member is arranged towards the motor body;
when the moving member overcomes the elastic force under the action of the magnetic field, the moving member moves towards the motor body to drive the blocking member to open the air outlet, or
When the moving component overcomes the magnetic field or the magnetic field disappears under the action of the elastic force, the moving component moves away from the motor body to drive the blocking component to block the air outlet.
4. The natural gas fired hybrid variable frequency motor assembly of claim 3,
the moving member includes: a magnetic plate and at least two elastic guide members;
the two elastic guide parts are arranged in parallel and respectively movably penetrate through the magnetic plates, the two elastic guide parts are respectively positioned on two sides of the motor body, and the magnetic plates are connected with the plugging member;
when the magnetic plate overcomes the elasticity of the two elastic guide components under the action of the magnetic field, the magnetic plate moves towards the motor body, or
When the magnetic plate overcomes or disappears the magnetic field under the elastic force of the two elastic guide parts, the magnetic plate moves away from the motor body.
5. The natural gas fired hybrid variable frequency motor assembly of claim 4,
the elastic guide member includes: a guide rod and a guide spring;
two ends of the guide rod are respectively fixed with the shell, the guide spring is sleeved on the guide rod, one end of the guide spring is connected with the end part of the guide rod, and the other end of the guide spring is connected with the magnetic plate;
when the magnetic plate overcomes the elastic force of the guide spring under the action of the magnetic field, the magnetic plate extrudes the guide spring to move towards the motor body along the length direction of the guide rod, or
When the magnetic plate overcomes the magnetic field or the magnetic field disappears under the elastic force action of the guide spring, the guide spring pushes the magnetic plate to move away from the motor body along the length direction of the guide rod.
6. The natural gas fired hybrid variable frequency motor assembly of claim 4,
the orifice member includes: a plugging rod and a plugging plate;
the top of the magnetic plate is connected with one end of a plugging rod, and the other end of the plugging rod is connected with a plugging plate;
the plugging rod is positioned on one side of the air outlet, and the air outlet is positioned on the moving path of the plugging plate;
the plugging rod moves along one side of the air outlet under the action of the magnetic plate so as to drive the plugging plate to plug the air outlet or move away from the air outlet.
7. The natural gas fired hybrid variable frequency motor assembly of claim 6,
the orifice member further comprises: a moving guide rail;
the movable guide rail is arranged in parallel to the plugging rod and is fixed on the other side of the air outlet;
the inner part of the plugging plate is provided with a moving groove matched with the moving guide rail, namely
The plugging plate moves horizontally under the guidance of the moving guide rail.
8. The natural gas fired hybrid variable frequency motor assembly of claim 4,
the bottom of the shell is provided with a chip removal port;
a chip removal plate is arranged at the bottom of the magnetic plate, and the chip removal plate and the chip removal port are positioned on the same horizontal plane;
when the motor body is in a starting state, the chip removal plate opens the chip removal port, and the motor body sucks air from the chip removal port to accumulate at the air outlet;
when the motor body is switched from a starting state to a normal working state, the magnetic plate drives the chip removal plate to block the chip removal port so as to prevent the motor body from sucking air from the chip removal port;
when the motor body is switched to a shutdown state from a normal working state, the magnetic plate resets to drive the chip removal plate to move away from the chip removal port, so that carbon deposits entering the shell scattered into the shell are discharged from the chip removal port.
9. The natural gas fired hybrid variable frequency motor assembly of claim 6,
the top surface of the plugging plate is arranged in a slope manner so as to guide the accumulated carbon falling on the plugging plate to slide to a collection area.
10. A method of operating a natural gas fired hybrid inverter motor assembly according to any one of claims 1 to 9, comprising:
when the motor body is in a starting state, the air outlet is blocked by the blocking unit to prevent natural gas in the combustion chamber from entering the shell, and air sucked from the air inlet by the motor body is accumulated at the air outlet;
when the motor body is switched from a starting state to a normal working state, a magnetic field generated by the motor body attracts the plugging unit to move on the shell so as to drive the plugging unit to open the air outlet, and air accumulated at the air outlet forms airflow which is blown into the combustion chamber to be mixed with natural gas; and
when the motor body is switched to a shutdown state from a normal working state, the plugging unit resets to plug the air outlet so as to prevent carbon deposit on the outer side wall of the water tank in the combustion chamber from entering the machine shell.
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| CN202211569089.4A CN115596549B (en) | 2022-12-08 | 2022-12-08 | Natural gas combustion hybrid variable frequency motor assembly and working method thereof |
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