CN114183344A

CN114183344A - Vortex air compressor

Info

Publication number: CN114183344A
Application number: CN202111328826.7A
Authority: CN
Inventors: 钱银杰; 和福忠
Original assignee: Individual
Current assignee: Guangdong Naibang Machinery Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-03-15
Anticipated expiration: 2041-11-10
Also published as: CN114183344B

Abstract

The invention relates to the technical field of compressors, in particular to a scroll air compressor which comprises a shell, wherein a rectangular air inlet pipe is fixedly arranged on one side wall of the shell, an air outlet pipe is also fixedly arranged on the other side wall of the shell, a winding drum is arranged at the upper end of the outer wall of the air inlet pipe, and fixing rods are respectively and fixedly arranged on the outer wall of the air inlet pipe and two sides of the winding drum. According to the invention, external dust, foreign matters, insects and the like are blocked by the unfolded baffle net, so that the influence on the normal operation of the compressor caused by the fact that the foreign matters enter the air inlet pipe is avoided, the baffle net is wound back into the winding drum when the compressor works, then the dust in the air flow is automatically adsorbed and collected, the dust-containing gas is prevented from entering the interior of the shell, the gas and the dust in the dust collecting groove are driven to enter the dust exhaust port through the plurality of communication ports, the air inlet pipe is sprayed out, the dust is cleaned, and finally the temperature in the air outlet pipe is monitored in the field.

Description

Vortex air compressor

Technical Field

The invention relates to the technical field of compressors, in particular to a scroll air compressor.

Background

The scroll compressor is a compressor with compressible volume composed of a fixed involute scroll and an involute motion scroll which is eccentrically convoluted and translationally moved, the scroll compressor is formed by mutually engaging a movable scroll and a fixed scroll with two double-function equation profiles, during the working processes of air suction, compression and exhaust, the fixed scroll is fixed on a frame, and the movable scroll is driven by an eccentric shaft and restricted by an anti-rotation mechanism to rotate around the center of a base circle of the fixed scroll in a plane with a small radius. The air is sucked into the periphery of the static disc through the air filter element, and along with the rotation of the eccentric shaft, the air is gradually compressed in a plurality of crescent compression cavities formed by the engagement of the static disc and then is continuously discharged from an axial hole of the central part of the static disc.

In the prior art (No. CN111550405A), a scroll air compressor includes a motor and a scroll plate, and further includes a horizontal seal tank, where the motor and the scroll plate are disposed in the horizontal seal tank and form a mutual transmission by connecting two ends of a crankshaft, the horizontal seal tank is provided with an air inlet, an air outlet and a crankshaft oil return pipe, the horizontal seal tank supplements internal air through the air inlet, the air outlet corresponds to a high pressure airflow output end of the scroll plate, and an inner end of the crankshaft oil return pipe is connected to a central shaft through hole of the crankshaft. The vortex type air compressor disclosed by the invention has the advantages that the volume of the equipment is favorably reduced, the assembly precision is conveniently improved, the noise is reduced, the jamming and the larger abrasion are avoided, the service life is effectively prolonged, and the vortex type air compressor is durable in use, and the structural scheme of the vortex type air compressor can conveniently realize the cyclic utilization of lubricating oil of moving parts in the vortex type air compressor.

The invention also has some problems when in use, for example, the air inlet of the compressor is not provided with necessary dustproof and foreign matter prevention facilities, dust enters after the compressor is used, carbon deposition and scale deposition inside the compressor can be caused in the past, some compressors normally work, and meanwhile, the high temperature of the scroll air compressor can influence the normal work of the scroll air compressor when the scroll air compressor works, and the use of the compressor can be influenced if the high temperature early warning facilities are not necessary.

To this end, a scroll air compressor is proposed.

Disclosure of Invention

The invention aims to provide a scroll air compressor, which can prevent dust, foreign matters, insects and the like outside from entering an air inlet pipe to influence the normal operation of the compressor by blocking the external blocking net through an unfolded blocking net, can recycle the blocking net into a winding drum when the compressor works, can automatically adsorb and collect the dust in air flow, can prevent dust-containing gas from entering the interior of a machine shell, can drive the gas and the dust in a dust collecting groove to enter the interior of a dust exhaust port through a plurality of communication ports, can spray the air inlet pipe to clean the dust, and can finally monitor the temperature in an air outlet pipe in field so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a vortex air compressor comprises a shell, a rectangular air inlet pipe is fixedly arranged on one side wall of the shell, the other side wall of the shell is also fixedly provided with an air outlet pipe, the upper end of the outer wall of the air inlet pipe is provided with a winding drum, the outer wall of the air inlet pipe is respectively and fixedly provided with a fixed rod at two sides of the winding drum, an anti-blocking mechanism which is matched with the winding drum and is used for preventing foreign matters from entering the air inlet pipe is arranged between the two fixed rods, the inner bottom of the air inlet pipe is also provided with a dust collecting groove, the dust collecting groove is internally provided with a dust collecting mechanism for adsorbing dust in the airflow, the bottom of the air inlet pipe is also provided with a dust exhaust mechanism matched with the dust absorption mechanism, the outer part of the air outlet pipe is fixedly provided with an annular sleeve, and an alarm mechanism for monitoring the abnormal temperature condition in the shell is arranged in the annular sleeve.

Preferably, prevent that stifled mechanism is including seting up the inside spout of two dead levers respectively, two the common slidable mounting in inside of spout has the slide bar, the both ends of slide bar are respectively through the interior top elastic connection of spring with two spouts, the inside book of winding drum is equipped with keeps off the net, keep off the lower extreme of net and the upper end fixed connection of slide bar, the outside of casing is equipped with controller, two the spring all with controller electric connection.

When the compressor does not work, the sliding rod between the two fixed rods moves downwards under the action of gravity and drags the blocking net in the winding barrel to expand, the expanded blocking net can block external dust, the dust is prevented from falling into the air inlet pipe when the compressor is not used, external foreign matters, insects and the like can be prevented from entering the air inlet pipe to influence the normal work of the compressor, when the compressor works, the two springs can be powered by the controller, the springs are equivalent to an electrified solenoid when being electrified, each circle of independent spring is equivalent to annular current, the current directions in each circle of independent spring are the same, the different-name magnetic poles of the electrified solenoids are opposite, each circle of independent spring is mutually attracted, so that the whole spring can contract, and the results of the alternating current and the direct current are the same, the spring is contracted to drive the slide rod to move upwards, the blocking net is coiled into the winding drum, the air inlet pipe is completely opened, and the air input in the compressor can reach the maximum.

Preferably, the dust collection mechanism comprises a plurality of permanent magnets fixedly mounted on the side wall of the dust collection groove at equal intervals, a rotating shaft is rotatably mounted inside the dust collection groove, a plurality of metal plates are fixedly mounted on the outer portion of the rotating shaft at equal intervals in the circumferential direction, and an inclined plane is arranged at the bottom of the dust collection groove.

When the compressor works, gas enters the interior of the shell through the gas inlet pipe, then the gas drives the metal plates to rotate around the rotating shaft, the metal plates and the permanent electric body are continuously close to each other, separated from each other and close to each other, according to the principle of electrostatic induction, the metal plates are subjected to charge transfer when being close to the permanent electric body, different polarities are induced at two ends of the metal plates, as dust is a light and small object, when the metal plates are pushed to rotate by gas flow, an electric field exists around the metal plates, so that different charges appear at one end of the light and small object close to the metal plates, the same charge appears at one end far away from the metal plates, the acting force between the two charges is in direct proportion to the product of the electric quantity of the light and small object and the electric quantity of the light and small object, and small objects is in inverse proportion to the square of the distance between the light and small object and the metal plates, therefore, the attraction force of the metal plates to the closer different charges is greater than the repulsion force of the farther same charge, the metal plates can attract the dust in the gas flow, after the metal plates are far away from the permanent electric body, the inside electric charge of metal sheet is automatic neutralization, and then is electrified no longer, and the dust can break away from the metal sheet under self gravity to fall in the bottom of dust collecting tank, and then accomplish the automatic absorption and the collection to the dust in the air current, avoid the inside of dirty gas entering casing, avoid causing the influence to the inside components and parts of casing.

Preferably, the dust exhaust mechanism includes that the slope is seted up in the dust exhaust mouth of intake pipe bottom, the rear end of dust exhaust mouth is linked together through the bottom in a plurality of intercommunication mouths and dust collecting tank, smooth chamber has still been seted up to the bottom of intake pipe, a lateral wall fixed mounting in smooth chamber has the electro-magnet, electro-magnet and controller electric connection, another lateral wall in smooth chamber still fixed mounting has the elasticity gasbag, the one end fixed mounting of elasticity gasbag has the iron plate with electro-magnet complex, the inside of intake pipe still symmetry fixed mounting have two check valves that are linked together with the elasticity gasbag, the upper end the check valve is linked together through the one end of pipeline with the dust exhaust mouth, the lower extreme the check valve is linked together with the outside of intake pipe.

When the compressor works normally, the electromagnet is powered by the controller, then the electromagnet attracts the iron block in the sliding cavity, the elastic air bag is deformed, and external air is sucked into the elastic air bag through the one-way valve at the lower end, after the compressor stops working, the controller does not supply power to the electromagnet any more, the magnetism of the electromagnet disappears, the electromagnet does not attract the iron block any more, then the elastic air bag resets under the action of the elasticity of the elastic air bag, and is matched with the one-way valve at the upper end to spray the gas in the elastic air bag into the dust exhaust port, as the flow velocity of the gas discharged from the gas inlet pipe in the dust exhaust port is larger, the pressure intensity is small at the place with the larger flow velocity according to the Bernoulli principle, and then the gas and the dust in the dust collecting groove are driven to enter the dust exhaust port through the communicating ports, and then the gas inlet pipe is sprayed out, so that the dust is cleaned.

Preferably, alarm mechanism is including seting up in the inside arc chamber of annular cover, the siren is installed to the upper end of annular cover, the inside slidable mounting in arc chamber has the slider, a lateral wall symmetry fixed mounting in arc chamber have two with siren inner circuit electric connection's first contact, a lateral wall symmetry fixed mounting of slider has two mutual electric connection's second contact, the opposite side of slider is through another lateral wall elastic connection of memory alloy silk and arc chamber.

When the gas temperature of the gas outlet pipe is too high, the memory alloy wire positioned in the arc-shaped cavity is heated to deform and pushes the sliding block to move, so that the two first contacts can be in electrical contact with the two second contacts respectively, a circuit is switched on, the alarm is started, and an operator is reminded and takes cooling measures.

Preferably, the memory alloy wire is made of an alloy containing 64% of copper, 18% of zinc and 18% of nickel.

When the compressor normally works, the temperature inside the compressor should be controlled within 105 ℃, the memory alloy of copper 64%, zinc 18% and nickel 18% has the martensite transformation temperature of about 100 ℃, the memory alloy is in a free state, namely a natural state at room temperature, and extends at the temperature of above 100 ℃, so that the memory alloy can quickly respond to the temperature abnormality of the air outlet pipe.

Compared with the prior art, the invention has the beneficial effects that:

1. when the compressor does not work, the expanded blocking net can not only block external dust, but also block external foreign matters, insects and the like, and the phenomenon that the normal work of the compressor is influenced because the foreign matters enter the air inlet pipe is avoided.

2. When the compressor works, the air inlet pipe can be completely opened, so that the internal air inflow of the compressor can be maximized.

3. When the compressor works, the automatic adsorption and collection of dust in the air flow can be completed, the dust-containing gas is prevented from entering the shell, and the influence on internal components of the shell is avoided.

4. When the compressor normally works, the gas and the dust in the dust collecting groove can be driven to enter the dust exhaust port through the communicating ports, and then the gas inlet pipe is sprayed out, so that the dust is cleaned.

5. When the compressor normally works, if the temperature of gas sprayed out of the gas outlet pipe is too high, the circuit can be conducted, the alarm is started, and the operation personnel is reminded and cooling measures are taken.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a perspective view of a metal plate according to the present invention;

FIG. 3 is an enlarged view of the structure at A of the present invention;

FIG. 4 is a cross-sectional view of the intake manifold of the present invention;

FIG. 5 is an internal structural view of an intake pipe of the present invention;

FIG. 6 is a sectional view of the inner structure of the intake pipe according to the present invention;

FIG. 7 is a schematic view of the electromagnet of the present invention after its magnetism has disappeared;

fig. 8 is an internal structure view of an outlet duct of the present invention.

In the figure: 1. a housing; 2. an air inlet pipe; 3. fixing the rod; 4. a winding drum; 5. a chute; 6. a slide bar; 7. a spring; 8. blocking the net; 9. a dust collecting groove; 10. a metal plate; 11. a permanent magnet body; 12. a slide chamber; 13. an electromagnet; 14. an elastic air bag; 15. an iron block; 16. a one-way valve; 17. a dust exhaust port; 18. a communication port; 19. an air outlet pipe; 20. an annular sleeve; 21. an alarm; 22. an arcuate cavity; 23. a slider; 24. memorizing alloy wires; 25. a first contact; 26. a second contact.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and 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 considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, the present invention provides a scroll air compressor, which has the following technical scheme:

the utility model provides a vortex air compressor, which comprises a housing 1, a lateral wall fixed mounting of casing 1 has the intake pipe 2 of rectangle, another lateral wall of casing 1 still fixed mounting has outlet duct 19, winding cylinder 4 is installed to the outer wall upper end of intake pipe 2, the outer wall of intake pipe 2 has dead lever 3 in winding cylinder 4's both sides fixed mounting respectively, be equipped with between two dead levers 3 with winding cylinder 4 complex be used for preventing the inside anti-blocking mechanism that gets into the foreign matter of intake pipe 2, dust collecting tank 9 has still been seted up to the interior bottom of intake pipe 2, the inside of dust collecting tank 9 is equipped with and is used for carrying out absorbent dust absorption mechanism to the dust in the air current, the bottom of intake pipe 2 still is equipped with and constructs complex dust exhaust mechanism with dust absorption mechanism, the outside fixed mounting of outlet duct 19 has annular cover 20, the inside of annular cover 20 is equipped with the alarm mechanism that is used for carrying out the temperature abnormal conditions to casing 1's inside and monitors.

3-5, the anti-blocking mechanism comprises two sliding grooves 5 respectively arranged inside two fixed rods 3, a sliding rod 6 is installed inside the two sliding grooves 5 in a sliding manner, two ends of the sliding rod 6 are respectively and elastically connected with the inner tops of the two sliding grooves 5 through springs 7, a blocking net 8 is coiled inside the winding drum 4, the lower end of the blocking net 8 is fixedly connected with the upper end of the sliding rod 6, a controller is arranged outside the casing 1, and the two springs 7 are both electrically connected with the controller.

When the compressor does not work, the sliding rod 6 positioned between the two fixed rods 3 moves downwards under the action of gravity and drags the baffle net 8 in the winding drum 4 to be unfolded, the unfolded baffle net 8 can not only block external dust, but also prevent the dust from falling into the air inlet pipe 2 when the compressor is not used, and can also block external foreign matters, insects and the like, so that the influence of the foreign matters entering the air inlet pipe 2 on the normal work of the compressor is avoided, when the compressor works, the two springs 7 can be powered by the controller, the springs 7 are equivalent to energized solenoids when energized, each turn of independent spring 7 is equivalent to annular current, the current directions in each turn of independent spring 7 are the same, the unlike magnetic poles of the energized solenoids are opposite, the independent springs 7 in each turn are mutually attracted, and then the whole spring 7 can be contracted, no matter the alternating current or the direct current is conducted, the spring 7 is contracted, the slide rod 6 is driven to move upwards, the blocking net 8 is wound into the winding drum 4, the air inlet pipe 2 is completely opened, and the air inflow in the compressor can be maximized.

6-7, the dust collection mechanism comprises a plurality of permanent magnets 11 fixedly arranged on the side wall of the dust collection groove 9 at equal intervals, a rotating shaft is rotatably arranged inside the dust collection groove 9, a plurality of metal plates 10 are fixedly arranged on the outer circumference of the rotating shaft at equal intervals, and the bottom of the dust collection groove 9 is provided with an inclined plane.

When the compressor works, gas enters the inside of the shell 1 through the gas inlet pipe 2, then the metal plates 10 are driven to rotate around the rotating shaft, the metal plates 10 and the permanent magnets 11 are continuously close to each other, separated from each other and close to each other, according to the principle of electrostatic induction, the metal plates 10 are subjected to charge transfer when being close to the permanent magnets 11, two ends of the metal plates induce different polarities, as dust is a light and small object, when the metal plates 10 are pushed to rotate by gas flow, an electric field exists around the metal plates 10, so that different charges appear at one end of the light and small object close to the metal plates, the same charge appears at one end far from the metal plates, the acting force between the two charges is in direct proportion to the product of the electric quantity of the two charges and in inverse proportion to the square of the distance between the two charges, therefore, the attraction force of the metal plates 10 to the different charges close to the same charge is larger than the repulsion force of the same charge far away from the metal plates, so that the metal plates 10 can attract the dust in the gas flow, after the metal plate 10 is far away from the permanent magnet body 11, the electric charge inside the metal plate 10 is automatically neutralized, and then is not electrified, the dust can be separated from the metal plate 10 under the self gravity and fall to the bottom of the dust collection groove 9, so that the automatic adsorption and collection of the dust in the air flow are completed, the dust-containing gas is prevented from entering the inside of the machine shell 1, and the influence on the internal components of the machine shell 1 is avoided.

As an embodiment of the present invention, referring to fig. 6-7, the dust exhaust mechanism includes a dust exhaust port 17 obliquely formed at the bottom of the air intake pipe 2, the rear end of the dust exhaust port 17 is communicated with the bottom of the dust collecting groove 9 through a plurality of communication ports 18, the bottom of the air intake pipe 2 is further provided with a sliding chamber 12, one side wall of the sliding chamber 12 is fixedly provided with an electromagnet 13, the electromagnet 13 is electrically connected with the controller, the other side wall of the sliding chamber 12 is further fixedly provided with an elastic air bag 14, one end of the elastic air bag 14 is fixedly provided with an iron block 15 matched with the electromagnet 13, two check valves 16 communicated with the elastic air bag 14 are further symmetrically and fixedly installed inside the air intake pipe 2, the upper check valve 16 is communicated with one end of the dust exhaust port 17 through a pipeline, and the lower check valve 16 is communicated with the outside of the air intake pipe 2.

When the compressor normally works, the electromagnet 13 is powered by the controller, then the electromagnet 13 attracts the iron block 15 in the sliding cavity 12, so that the elastic air bag 14 deforms, and the external air is attracted into the elastic air bag 14 through the check valve 16 at the lower end, after the compressor stops working, the controller does not power the electromagnet 13 any more, the magnetism of the electromagnet 13 disappears, the iron block 15 is not attracted any more, then the elastic air bag 14 resets under the action of the elasticity of the elastic air bag 14 and is matched with the check valve 16 at the upper end, the air in the elastic air bag 14 is sprayed into the dust exhaust port 17, because the air in the dust exhaust port 17 is discharged from the air inlet pipe 2 at a high flow rate, the local pressure at the high flow rate is low, and then the air and the dust in the dust collection groove 9 are driven to enter the dust exhaust port 17 through the plurality of communication ports 18, and then the air inlet pipe 2 is sprayed out, and the dust is cleaned.

Referring to fig. 8, as an embodiment of the present invention, the alarm mechanism includes an arc-shaped cavity 22 opened inside an annular sleeve 20, an alarm 21 is installed at an upper end of the annular sleeve 20, a slider 23 is slidably installed inside the arc-shaped cavity 22, two first contacts 25 electrically connected to an internal circuit of the alarm 21 are symmetrically and fixedly installed on one side wall of the arc-shaped cavity 22, two second contacts 26 electrically connected to each other are symmetrically and fixedly installed on one side of the slider 23, and the other side of the slider 23 is elastically connected to the other side wall of the arc-shaped cavity 22 through a memory alloy wire 24.

When the temperature of the gas ejected from the gas outlet pipe 19 is too high, the memory alloy wire 24 located inside the arc-shaped cavity 22 is deformed by heat and pushes the slider 23 to move, so that the two first contacts 25 can be electrically contacted with the two second contacts 26 respectively, the circuit is switched on, the alarm 21 is started, and the operation personnel is reminded and a cooling measure is taken.

Referring to fig. 8, the memory alloy wire 24 is made of an alloy of 64% copper, 18% zinc and 18% nickel.

When the compressor normally works, the temperature inside the compressor should be controlled within 105 ℃, the memory alloy of copper 64%, zinc 18% and nickel 18% has the martensite transformation temperature of about 100 ℃, the memory alloy is in a free state, namely a natural state at room temperature, extends at the temperature of above 100 ℃, and further makes quick response to the temperature abnormality of the air outlet pipe 19.

The working principle is as follows: when the compressor does not work, the sliding rod 6 positioned between the two fixed rods 3 moves downwards under the action of gravity and drags the baffle net 8 in the winding drum 4 to be unfolded, the unfolded baffle net 8 can not only block external dust, but also prevent the dust from falling into the air inlet pipe 2 when the compressor is not used, and can also block external foreign matters, insects and the like, so that the influence of the foreign matters entering the air inlet pipe 2 on the normal work of the compressor is avoided, when the compressor works, the two springs 7 can be powered by the controller, the springs 7 are equivalent to energized solenoids when energized, each turn of independent spring 7 is equivalent to annular current, the current directions in each turn of independent spring 7 are the same, the unlike magnetic poles of the energized solenoids are opposite, the independent springs 7 in each turn are mutually attracted, and then the whole spring 7 can be contracted, no matter the result is the same with the alternating current or the direct current, the spring 7 is contracted to further drive the sliding rod 6 to move upwards, the baffle net 8 is coiled into the winding drum 4, the air inlet pipe 2 is completely opened, the internal air inflow of the compressor can be maximized, when the compressor works, air enters the interior of the shell 1 through the air inlet pipe 2, then the metal plates 10 are driven to rotate around the rotating shaft, the metal plates 10 and the permanent magnets 11 can be continuously close to each other, separated from each other and close to each other, according to the principle of electrostatic induction, when the metal plates 10 are close to the permanent magnets 11, charge transfer occurs, two ends induce different polarities, because dust is light and small objects, when the air flow pushes the metal plates 10 to rotate, an electric field exists around the metal plates 10, so that the light and small objects have different charges at one end close to the light and small objects, and the same charge with the same quantity appears at one end far away from the light and small objects, the acting force between the two charges is in direct proportion to the product of the electric quantity of the two charges and in inverse proportion to the square of the distance between the two charges, therefore, the attraction force of the metal plate 10 to the closer different charges is greater than the repulsion force of the farther same charges, the metal plate 10 can attract the dust in the airflow, when the metal plate 10 is far away from the permanent magnet body 11, the charges in the metal plate 10 are automatically neutralized and are not electrified, the dust can be separated from the metal plate 10 under the self gravity and fall at the bottom of the dust collection groove 9, so that the automatic adsorption and collection of the dust in the airflow are completed, the dust-containing gas is prevented from entering the interior of the machine shell 1, the influence on the internal components of the machine shell 1 is avoided, when the compressor works normally, the electromagnet 13 is powered through the controller, then the electromagnet 13 can attract the iron block 15 in the sliding cavity 12, so that the elastic air bag 14 is deformed, the external gas is sucked into the elastic air bag 14 through the check valve 16 at the lower end, after the compressor stops working, the controller does not supply power to the electromagnet 13 any more, the magnetism of the electromagnet 13 disappears, the electromagnet 15 is not sucked any more, then the elastic air bag 14 resets under the action of the elasticity of the elastic air bag 14 and is matched with the check valve 16 at the upper end, the gas in the elastic air bag 14 is sprayed into the dust exhaust port 17, because the gas flow rate in the dust exhaust port 17 discharged from the gas inlet pipe 2 is larger, the pressure intensity at the place with the larger flow rate is small according to Bernoulli's principle, the gas and the dust in the dust collecting groove 9 are further driven to enter the dust exhaust port 17 through the plurality of communication ports 18 and then sprayed out of the gas inlet pipe 2, the dust is cleaned, when the compressor normally works, the temperature in the compressor should be controlled within 105 ℃, and when the temperature of the gas sprayed out of the gas outlet pipe 19 is too high, the memory alloy wire 24 inside the arc-shaped cavity 22 is deformed by heat and pushes the slider 23 to move, so that the two first contacts 25 can be electrically contacted with the two second contacts 26 respectively, and then the circuit is switched on and the alarm 21 is started, so as to remind an operator and take cooling measures.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A scroll air compressor comprising a casing (1), characterized in that: a rectangular air inlet pipe (2) is fixedly mounted on one side wall of the machine shell (1), an air outlet pipe (19) is fixedly mounted on the other side wall of the machine shell (1), a winding drum (4) is mounted at the upper end of the outer wall of the air inlet pipe (2), fixing rods (3) are respectively fixedly mounted on the outer wall of the air inlet pipe (2) and on two sides of the winding drum (4), an anti-blocking mechanism which is matched with the winding drum (4) and used for preventing the interior of the air inlet pipe (2) from entering foreign matters is arranged between the two fixing rods (3), a dust collecting groove (9) is further formed in the inner bottom of the air inlet pipe (2), a dust collecting mechanism used for adsorbing dust in air flow is arranged in the dust collecting groove (9), a dust discharging mechanism matched with the dust collecting mechanism is further arranged at the bottom of the air inlet pipe (2), and an annular sleeve (20) is fixedly mounted on the exterior of the air outlet pipe (19), and an alarm mechanism for monitoring the abnormal temperature condition in the shell (1) is arranged in the annular sleeve (20).

2. A scroll air compressor as claimed in claim 1, wherein: prevent stifled mechanism including seting up spout (5) inside two dead levers (3) respectively, two the common slidable mounting in inside of spout (5) has slide bar (6), the both ends of slide bar (6) are respectively through the interior top elastic connection of spring (7) with two spout (5), the inside book of winding drum (4) is equipped with keeps off net (8), keep off the lower extreme of net (8) and the upper end fixed connection of slide bar (6), the outside of casing (1) is equipped with the controller, two spring (7) all with controller electric connection.

3. A scroll air compressor as claimed in claim 1, wherein: the dust collection mechanism comprises a plurality of permanent electric bodies (11) which are fixedly arranged on the side wall of the dust collection groove (9) at equal intervals, a rotating shaft is further rotatably arranged inside the dust collection groove (9), a plurality of metal plates (10) are fixedly arranged on the outer portion of the rotating shaft in the circumferential direction at equal intervals, and an inclined plane is arranged at the bottom of the dust collection groove (9).

4. A scroll air compressor as claimed in claim 2, wherein: the dust exhaust mechanism comprises a dust exhaust port (17) obliquely arranged at the bottom of the air inlet pipe (2), the rear end of the dust exhaust port (17) is communicated with the bottom of the dust collecting groove (9) through a plurality of communicating ports (18), the bottom of the air inlet pipe (2) is also provided with a sliding cavity (12), one side wall of the sliding cavity (12) is fixedly provided with an electromagnet (13), the electromagnet (13) is electrically connected with the controller, the other side wall of the sliding cavity (12) is also fixedly provided with an elastic air bag (14), one end of the elastic air bag (14) is fixedly provided with an iron block (15) matched with the electromagnet (13), two one-way valves (16) communicated with the elastic air bags (14) are symmetrically and fixedly mounted inside the air inlet pipe (2), the upper end of each one-way valve (16) is communicated with one end of a dust exhaust port (17) through a pipeline, and the lower end of each one-way valve (16) is communicated with the outside of the air inlet pipe (2).

5. A scroll air compressor as claimed in claim 1, wherein: alarm mechanism is including offering in annular cover (20) inside arc chamber (22), siren (21) are installed to the upper end of annular cover (20), the inside slidable mounting of arc chamber (22) has slider (23), a lateral wall symmetry fixed mounting of arc chamber (22) has two first contact (25) with siren (21) internal circuit electric connection, a lateral wall symmetry fixed mounting of slider (23) has two mutual electric connection's second contact (26), another lateral wall elastic connection of memory alloy silk (24) and arc chamber (22) is passed through to the opposite side of slider (23).

6. A scroll air compressor as claimed in claim 5, wherein: the memory alloy wire (24) is made of an alloy containing 64% of copper, 18% of zinc and 18% of nickel.