CN114471008B - Efficient compression system for realizing air separation - Google Patents
Efficient compression system for realizing air separation Download PDFInfo
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- CN114471008B CN114471008B CN202210124320.2A CN202210124320A CN114471008B CN 114471008 B CN114471008 B CN 114471008B CN 202210124320 A CN202210124320 A CN 202210124320A CN 114471008 B CN114471008 B CN 114471008B
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- air inlet
- inlet channel
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- 230000006835 compression Effects 0.000 title claims abstract description 59
- 238000007906 compression Methods 0.000 title claims abstract description 59
- 238000000926 separation method Methods 0.000 title claims abstract description 31
- 239000000428 dust Substances 0.000 claims abstract description 62
- 238000001914 filtration Methods 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000001179 sorption measurement Methods 0.000 claims description 50
- 238000004140 cleaning Methods 0.000 claims description 46
- 230000005611 electricity Effects 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 230000003068 static effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4227—Manipulating filters or filter elements, e.g. handles or extracting tools
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04163—Hot end purification of the feed air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/84—Processes or apparatus using other separation and/or other processing means using filter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/86—Processes or apparatus using other separation and/or other processing means using electrical phenomena, e.g. Corona discharge, electrolysis or magnetic field
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides a high-efficiency compression system for realizing air separation, which comprises a gas compressor, an air inlet channel arranged at the air inlet of the gas compressor, at least two air filtering devices communicated with the air inlet channel, a control valve arranged between each air filtering device and the air inlet, a humidity detection device for detecting ambient humidity and a dust detection device arranged at the air inlet channel, wherein the control device is used for acquiring detection values of the humidity detection device and the dust detection device so as to control the opening and closing of the control valve, and can directly control the replacement of the air filtering devices according to the content of dust in the air inlet channel, so that dust is prevented from being excessively attached to blades of the air compressor, the influence of reduction of compression efficiency caused by dust attached to the blades can be reduced, the compression efficiency of the compression system is improved, and the air filtering device is not cleaned and stopped by directly switching the air filtering devices, so that the compression efficiency is further improved.
Description
Technical Field
The invention relates to the technical field of air separation, in particular to a high-efficiency compression system for realizing air separation.
Background
The air separation is to take air as raw materials, the air is changed into liquid state through a compression circulation deep freezing method, then the air is gradually separated from the liquid air through rectification to produce inert gases such as oxygen, nitrogen, argon and the like, the air compression is the necessary procedure of the air separation, the air compression efficiency of the air is directly related to the air separation efficiency, the air compression of the existing air separation equipment is mainly required to compress the air through an air compressor, in order to ensure the cleanliness of the air, an air compression system comprises an air filtering device for filtering dust and sundries in the air, but the existing air filtering device is blocked after long-time use, so that the air inlet resistance is high, the compression efficiency is reduced, aiming at the problem, the cleaning device of the air filtering core is added, the working of the cleaning device is controlled by adopting a mode of detecting the air inlet quantity, the cleaning device is enabled to clean the filtering core when the air inlet quantity is blocked, the cleaning device is enabled to work when the air inlet quantity is insufficient, the mode can be cleaned in time when the filtering core is blocked, the cleaning process is still required to be stopped, and when the filtering core is partially broken, the air inlet quantity can reach the requirement, a great quantity of entering, the dust is adhered to the blade compressor, so that the efficiency of the compressor is reduced.
Disclosure of Invention
In view of the above-mentioned problems, the present application provides a high-efficiency compression system for implementing air separation, which is used for solving the technical problems set forth in the background art and improving the working efficiency of the compression system.
The invention provides a high-efficiency compression system for realizing air separation, which comprises a gas compressor, an air inlet channel arranged at the air inlet of the gas compressor, at least two air filtering devices communicated with the air inlet channel, a control valve arranged between each air filtering device and the air inlet channel, a control device, a humidity detection device for detecting ambient humidity and a dust detection device arranged at the air inlet channel, wherein the control device is used for acquiring detection values of the humidity detection device and the dust detection device so as to control the opening and closing of the control valve.
Further, the dust detection device comprises an electrostatic adsorption plate arranged in the air inlet channel, an electrostatic generation device electrically connected with the electrostatic adsorption plate, an industrial camera correspondingly arranged with the electrostatic adsorption plate and an air outlet arranged on one side of the electrostatic adsorption plate, wherein the air outlet is connected with a deionized air source, and the air outlet faces towards the electrostatic adsorption plate.
Further, a sealed dust-free cavity is formed in the side wall of the air inlet channel, the electrostatic adsorption plate is located on the side wall of the air inlet channel, the electrostatic adsorption plate is a transparent plate, and the industrial camera is arranged on the side wall of the dust-free cavity.
Further, the surface of the electrostatic adsorption plate is parallel to the axial direction of the air inlet channel, a parallel light source is arranged in the air inlet channel opposite to the electrostatic adsorption plate, and the light rays emitted by the parallel light source are perpendicular to the surface of the electrostatic adsorption plate.
Further, the air filtering device is provided with a cleaning device, the cleaning device comprises a back-blowing branch, one end of the back-blowing branch is connected between the air filtering device and the corresponding control valve, the other end of the back-blowing branch is communicated with a high-pressure air source, and each back-blowing branch is provided with an electromagnetic valve.
Further, the air filter device comprises a cylindrical vent pipe, a mounting seat arranged at one end of the vent pipe and a cylindrical filter element arranged on the mounting seat, the cleaning device further comprises a rotating assembly arranged around the cylindrical filter element, at least one group of cleaning assemblies are arranged on the rotating assembly, each cleaning assembly comprises a cleaning brush contacted with the outer surface of the cylindrical filter element, and the rotating assembly can drive the cleaning brush to axially rotate around the cylindrical filter element.
Further, the rotating assembly comprises an outer shell, a cover body, a filter core cover and a driving motor, wherein the outer shell is coaxially arranged around the cylindrical filter core and is rotationally connected with the vent pipe, the cover body is arranged on the outer shell, the filter core cover is arranged at the end part of the cylindrical filter core in a covering mode, the driving motor is arranged on the vent pipe and is in driving connection with the outer shell, the cover body is rotationally connected with the filter core cover, and the cleaning assembly is arranged on the inner side wall of the outer shell.
Further, the cleaning assembly further comprises a fixed plate arranged on the inner side wall of the outer shell and parallel to the axis of the vent pipe, a rotating shaft arranged on one side of the fixed plate away from the cylindrical filter element, and a movable plate arranged between the rotating shaft and the fixed plate, wherein a plurality of cylindrical through holes are uniformly arranged on the fixed plate at intervals along the axial direction of the vent pipe, a plurality of screw nuts which are arranged in one-to-one correspondence with the through holes are arranged on the movable plate, a rotating rod is arranged in each through hole in a rotating way, the rotating rod comprises a screw rod part in threaded fit with the screw nuts, and the cleaning brush is arranged at the end part of the rotating rod; the movable plate is in driving connection with the rotating shaft, the rotating shaft is in driving connection with the vent pipe, so that the outer shell rotates around the vent pipe to drive the rotating shaft to rotate, and the rotating shaft drives the movable plate to reciprocate along the axial direction of the rotating rod.
Further, a plurality of cams are arranged on the rotating shaft at intervals, a plurality of pressure springs are arranged between the movable plate and the fixed plate, and the axial direction of the rotating rod is arranged along the radial direction of the vent pipe.
Further, the mounting seat is provided with a gear ring coaxially arranged with the vent pipe, and the rotating shaft is provided with a driven gear in driving connection with the gear ring.
Further, the two ends of the tubular filter element are respectively provided with a first annular magnetic piece, the mounting seat and the filter element cover are respectively provided with an annular sealing piece, each annular sealing piece comprises an elastic air bag, a second annular magnetic piece and a third annular magnetic piece, the second annular magnetic pieces and the third annular magnetic pieces are arranged on the side wall of the elastic air bag and are parallel to each other, the second annular magnetic pieces close to the tubular filter element are in magnetic adsorption fit with the first annular magnetic pieces, and the second annular magnetic pieces and the third annular magnetic pieces are in repulsion fit.
Further, the magnetic directions of the first annular magnetic members at the two end parts of the cylindrical filter element are opposite.
Further, a plurality of connecting rods are uniformly arranged on the outer side of the outer shell at intervals around the outer shell, a plurality of connecting parts which are arranged in one-to-one correspondence with the connecting rods are arranged on the cover body, and the connecting parts are connected with the connecting rods in a quick-dismantling mode.
Further, the connecting portion comprises a columnar piece, a columnar cavity and a second rotating rod, wherein the columnar piece is rotatably arranged in the cover body, the columnar cavity is formed in the columnar piece, the second rotating rod is coaxially arranged with the columnar piece and rotatably arranged in the columnar piece, a circular plate is coaxially arranged at a part of the second rotating rod extending into the columnar cavity, the outer peripheral surface of the circular plate is in sliding fit with the inner side wall of the columnar cavity, a plurality of grooves are uniformly arranged on the outer peripheral surface of the circular plate at intervals along the circumferential direction, a plurality of channels are arranged in the area, corresponding to the circular plate, of the outer side wall of the columnar cavity, locking balls are arranged in each channel, a sliding sleeve is sleeved outside the columnar piece, a second pressure spring is further arranged between the sliding sleeve and the cover body, and a limiting piece is further arranged on the columnar piece, and the sliding sleeve can be abutted against the limiting piece under the action of the elasticity of the second pressure spring; the part of the second rotating rod extending out of the columnar cavity is provided with a second threaded part, the end part of the connecting rod is provided with a second screw nut, and a channel coaxially arranged with the screw nut is arranged in the connecting rod.
Further, the sliding sleeve comprises an annular piece arranged around the cover body, a plurality of sliding sleeves are connected with the annular piece, and handles are arranged on two opposite sides of the cover body.
Further, the bottom of columnar cavity is provided with the sliding block along its axial slip, the sliding block with still be provided with the third pressure spring between the columnar cavity bottom, the third pressure spring can with the sliding block supports the tip of pressing the second dwang, the sliding block with columnar cavity non-normal running fit.
The invention provides a high-efficiency compression system for realizing air separation, which can directly control the replacement of an air filtering device according to the content of tiny dust in an air inlet channel, avoid the tiny dust from being excessively attached to blades of an air compressor, reduce the influence of reduction of compression efficiency caused by the attachment of the tiny dust to the blades, improve the compression efficiency of the compression system, and further improve the compression efficiency by directly switching the air filtering device without stopping the air filtering device while cleaning the air filtering device.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings.
Fig. 1 is a schematic structural diagram of a high-efficiency compression system for realizing air separation according to the present invention.
Fig. 2 is a schematic structural diagram of a dust detection device in a high-efficiency compression system for realizing air separation.
Fig. 3 is a schematic structural diagram of an air filtering device in a high-efficiency compression system for realizing air separation.
Fig. 4 is a schematic diagram of a partial enlarged structure at a in a high-efficiency compression system for realizing air separation according to the present invention.
Fig. 5 is a schematic view of a partially enlarged structure at B in a high-efficiency compression system for achieving air separation according to the present invention.
Fig. 6 is a schematic diagram of a partially enlarged structure at D in a high-efficiency compression system for achieving air separation according to the present invention.
Fig. 7 is a schematic structural diagram of a cover body in a view angle in a direction C in the efficient compression system for realizing air separation according to the present invention.
Fig. 8 is a schematic cross-sectional view of an outer casing at E-E in a high efficiency compression system for achieving air separation according to the present invention.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
The invention provides a high-efficiency compression system for realizing air separation, referring to fig. 1 and 2, as a specific implementation manner, the system comprises a gas compressor 1, an air inlet channel 10 arranged at an air inlet of the gas compressor 1, at least two air filtering devices 2 communicated with the air inlet channel 10, a control valve 21 arranged between each air filtering device 2 and the air inlet, a control device 3, a humidity detection device 4 for detecting ambient humidity and a dust detection device 5 arranged at the air inlet channel 10, wherein the control device 3 is used for acquiring detection values of the humidity detection device 4 and the dust detection device 5 so as to control the opening and closing of the control valve 21.
Specifically, for convenience of explanation, two air filtering devices 2 are used for illustration, in this arrangement, when the compression system compresses air, the control device 4 controls one of the control valves 21 to be opened, controls the other control valve 21 to be closed, filters the air through one of the air filtering devices 2, so as to filter away the dust in the air, and detects the content of the dust in the air inlet channel 10 through the dust detecting device 5, detects the humidity of the air in the external environment through the humidity detecting device, and when the content of the dust in the air inlet channel 10 exceeds the standard, the control device 4 controls the two control valves to switch, so that the air filtering devices 2 can be switched according to the content of the dust in the air inlet channel, in this arrangement, the replacement of the air filtering devices can be directly controlled, the dust is prevented from being excessively attached to blades of the air compressor, the influence of the reduction of compression efficiency caused by the dust attached to the blades can be reduced, and the compression efficiency of the compression system can be improved; it can be understood that when the humidity in the air increases, the dust particles are more easily attached to the blades, and the dust particle content in the air inlet channel 10 is determined to be out of standard according to different humidity by detecting the humidity in the air, so that the control is more accurate; secondly, the method for directly switching the air filtering device does not need to stop the machine when cleaning the air filtering device, and further improves the compression efficiency.
The method for judging the standard value of exceeding the content of the tiny dust in the air inlet channel 10 comprises the following steps: and simulating the operation of the air compressor, respectively working under different air humidity, controlling the dust content in the air inlet channel to gradually increase, and measuring the dust attached to the compression blades of the air compressor after simulating the operation for 100 hours under the condition of each dust content until the dust content corresponding to the dust attached to the compression blades exceeding the standard is obtained, and determining the dust content exceeding the standard value under the air humidity.
It should be noted that, in the compression system provided by the invention, the air inlet 10 is provided with the air flow detection device (not shown), when the air flow in the air inlet is reduced to a preset value, it is proved that the air filtering device filters a large amount of dust particles to be replaced, and at this time, no matter whether the dust particles in the air inlet exceed the standard, the control device performs replacement of the air filtering device; when the content of the fine dust in the air inlet channel exceeds the standard, the filter device is replaced no matter whether the air flow in the air inlet channel is reduced to a preset value or not; specifically, when the airflow in the air inlet channel is higher than a preset value and the content of dust particles in the air inlet channel exceeds the standard, the filter element in the corresponding air filtering device is determined to be damaged at the moment, and alarm information is sent in time to remind related personnel to replace the filter element.
Further, referring to fig. 2, as a specific embodiment, the specific structure of the dust detection device 5 is: the dust detection device 5 comprises an electrostatic adsorption plate 51 arranged in the air inlet channel 10, an electrostatic generator 510 electrically connected with the electrostatic adsorption plate 51, an industrial camera 52 arranged corresponding to the electrostatic adsorption plate 51, and an air outlet 53 arranged at one side of the electrostatic adsorption plate 51, wherein the air outlet 53 is connected with a deionized air source 54, and the air outlet 53 is arranged towards the electrostatic adsorption plate 51.
Specifically, in this setting manner, when the compression system works, the electrostatic generating device 510 works, so that the electrostatic adsorption plate 51 carries static electricity, the electrostatic adsorption plate 51 can adsorb dust particles in air in the air inlet duct 10, and the electrostatic adsorption plate 51 carries static electricity for a preset time period T, wherein the preset time period T is selected according to needs, any value in 0.5-15 seconds can be selected, then the industrial camera is controlled to photograph the electrostatic adsorption plate, picture information on the surface of the electrostatic adsorption plate is obtained, then the picture information is processed, the number of dust particles adsorbed on the electrostatic adsorption plate is obtained, and the dust content in the air inlet duct 10 is determined according to the number of attached dust particles; the ion wind source is an ion fan, after the industrial camera 52 obtains the picture information, the electrostatic generator 510 is controlled to stop working, the ion fan is controlled to work, the blown ion wind blows the adsorption surface of the electrostatic adsorption plate 51 from the air outlet 53, static electricity on the ion adsorption plate is removed, so as to remove dust particles adsorbed on the surface of the ion adsorption plate, then the ion wind source is controlled to stop working, and the steps are repeated to continuously detect the dust particle content in the air inlet channel 10.
Further, referring to fig. 2, as a preferred embodiment, a sealed dust-free cavity 55 is disposed on a sidewall of the air inlet 10, the electrostatic adsorption plate 51 is a sidewall of the dust-free cavity 55 in the air inlet 10, the electrostatic adsorption plate 51 is a transparent plate, and the industrial camera 52 is disposed on the sidewall of the dust-free cavity 55.
Specifically, the dust-free cavity 55 is a cavity with dust removed inside, and by this arrangement, only the plate surface of the electrostatic adsorption plate extending into the air inlet channel can be ensured to adsorb dust, so that the detection accuracy can be improved.
Further, as an alternative embodiment, the surface of the electrostatic adsorption plate 51 is parallel to the axial direction of the air inlet 10, a parallel light source 56 is disposed in the air inlet 10 opposite to the electrostatic adsorption plate 51, and the light emitted by the parallel light source 56 is perpendicular to the surface of the electrostatic adsorption plate 51.
Example two
The present invention provides a high-efficiency compression system for realizing air separation, which is different from the first embodiment in that the air filtering device 2 is provided with a cleaning device, the cleaning device comprises a blowback branch 22, one end of the blowback branch is connected between the air filtering device 2 and the corresponding control valve 21, the other end is communicated with a high-pressure air source 220, and each blowback branch 22 is provided with a solenoid valve 221. Referring to fig. 1 and 3, by setting the blowback branch and the high-pressure air source 220 to communicate, after the air filter device 2 is used, the control device 4 controls the corresponding electromagnetic valve 221 to open, and the high-pressure air source enters along the breather pipe 201 of the air filter device 2 to perform blowback, so as to remove the dust attached to the filter element of the air filter device 2, and achieve the purpose of automatically cleaning the air filter device.
Further, as a specific embodiment, referring to fig. 3 to 7, the air filtering device 2 includes a cylindrical ventilation pipe 201, a mounting seat 202 disposed at one end of the ventilation pipe 201, and a cylindrical filter element 23 mounted on the mounting seat, the cleaning device further includes a rotating assembly 24 disposed around the cylindrical filter element 23, at least one group of cleaning assemblies 25 disposed on the rotating assembly 24, the cleaning assemblies 25 include cleaning brushes 251 contacting with an outer surface of the cylindrical filter element 23, and the rotating assembly 24 can drive the cleaning brushes 251 to rotate around an axial direction of the cylindrical filter element 23.
Further, referring to fig. 3, as a specific embodiment, the rotating assembly 24 includes an outer case 241 coaxially disposed around the cylindrical filter element 23 and rotationally connected to the breather pipe 201, a cover 242 disposed on the outer case, a filter element cover 243 disposed on an end portion of the cylindrical filter element 23, and a driving motor 244 disposed on the breather pipe 201 and drivingly connected to the outer case 241, the cover 242 and the filter element cover 243 are rotationally connected, and the cleaning assembly 25 is disposed on an inner side wall of the outer case.
Specifically, referring to fig. 3 to 7, in use, the breather pipe 201 is communicated with the air inlet channel 10 of the air compressor 1 through a pipeline, and when the air compressor 1 works, gas enters the breather pipe 201 through the outer shell 241 and the cylindrical filter element 23 in sequence to finish the filtration of the gas; wherein cleaning device still includes rotating assembly 24, sets up cleaning assembly 25 on rotating assembly 24 to carry out the blowback through blowback branch road to the tubular filter core and drive the shell body through driving motor 244 and rotate, thereby make cleaning assembly 25's brush cleaner 251 clean the surface of filter core, can reach better cleaning performance.
Referring to fig. 8, as a preferred embodiment, guide plates 2411 are disposed on the inner side wall of the outer casing at intervals along the circumferential direction, the guide plates 2411 are disposed in an extending manner along the rotation direction 9 of the outer casing driven by the driving motor 244, and an elongated air flow channel 2410 is disposed upstream of the position of each guide plate 2411 and the outer casing, and the length direction of the elongated air flow channel is disposed in an extending manner along the axial direction of the outer casing. Through this arrangement, when the driving motor 244 drives the outer housing to rotate, the air flow in the outer housing can be guided by the guide plate 2411, so that the air is conveniently discharged from the air flow channel 2410, and a better cleaning effect is achieved.
Further, referring to fig. 2-8, as a preferred embodiment, the cleaning assembly 25 further includes a fixed plate 252 disposed on an inner sidewall of the outer case 241 and parallel to an axis of the breather pipe 201, a rotating shaft 253 rotatably disposed on a side of the fixed plate 252 away from the cylindrical filter core 23, and a movable plate 254 disposed between the rotating shaft 253 and the fixed plate 252, wherein a plurality of cylindrical through holes 2520 are uniformly disposed on the fixed plate at intervals along an axial direction of the breather pipe 201, a plurality of screw nuts 255 disposed in one-to-one correspondence with the through holes 2520 are disposed on the movable plate 254, a rotating rod 256 is rotatably disposed in each of the through holes 2520, the rotating rod 256 includes a screw portion 2561 threadably engaged with the screw nut 255, and the cleaning brush 251 is disposed at an end portion of the rotating rod 256; the movable plate 254 is in driving connection with the rotating shaft 253, and the rotating shaft 253 is in driving connection with the ventilation pipe 201, so that the outer casing rotates around the ventilation pipe 201 to drive the rotating shaft 253 to rotate, and the rotating shaft drives the movable plate 254 to reciprocate along the axial direction of the rotating rod 256.
Specifically, in this arrangement, when the cleaning brush 251 rotates with the outer casing to clean the cylindrical filter element, the outer casing 241 rotates relatively to the breather pipe 201, and the rotating rod 256 is in driving connection with the breather pipe, so that the movable plate 254 is driven to reciprocate, so that the lead screw nut 255 reciprocates on the rotating rod 256, and because the lead screw nut 255 is fixedly arranged on the movable plate 254, the rotating rod 256 cannot slide in the axial direction, so that the rotating rod 256 can be driven to reciprocate while the movable plate reciprocates, so that the cleaning brush is driven to reciprocate, thereby achieving a better cleaning effect.
Further, referring to fig. 4, as a preferred embodiment, the rotating shaft 253 is connected to the movable plate in a manner that a plurality of cams 2531 are disposed on the rotating shaft 253 at intervals, a plurality of compression springs 257 are disposed between the movable plate 254 and the fixed plate 252, and an axial direction of the rotating rod 256 is disposed along a radial direction of the breather pipe 201. Through the arrangement mode, the connecting structure of the rotating shaft and the rear movable plate can be simplified, and the structure is simplified.
Further, referring to fig. 3, as a preferred embodiment, the shaft 253 and the breather pipe 201 are connected in such a manner that the mount 202 is provided with a gear ring 2020 coaxially disposed with the breather pipe 201, and the shaft 253 is provided with a driven gear 2532 drivingly connected with the gear ring 2020.
Specifically, in order to make the cleaning assembly perform cleaning on the cylindrical filter element better, the distance between the movable plate and the first position of the cylindrical filter element 23 and the second position farthest from the cylindrical filter element 23 in the moving process is L1, the pitch of the internal thread of the screw nut 255 is L2, the number of groups of the cleaning assembly is N, the adjustment coefficient is α, the value range is 0.43-0.87, the rotation speed of the outer shell is N1, the rotation speed of the rotating shaft 253 is N2, where N1/N2 = N 1/2 （L1/ L2）α。
Further, referring to fig. 3 and 5, the two ends of the cylindrical filter element 23 are provided with a first annular magnetic member 230, the mounting seat 202 and the filter element cover 243 are provided with annular sealing members 26, the annular sealing members 26 include an elastic air bag 261, a second annular magnetic member 262 and a third annular magnetic member 263 which are disposed on the side wall of the elastic air bag and are parallel to each other, the second annular magnetic member 262 close to the cylindrical filter element 23 is magnetically adsorbed and matched with the first annular magnetic member 230, and the second annular magnetic member 262 and the third annular magnetic member 263 are in repulsive and matched with each other.
Further, the first ring-shaped magnetic members 230 at both end portions of the cylindrical filter element 23 have opposite magnetic directions. By this arrangement, the air tightness of the cylindrical filter element 23, the mounting base 202 and the filter element cover can be ensured, and the filtering effect of the air filtering device can be ensured.
Example III
The present invention provides a high-efficiency compression system for realizing air separation, which is different from the second embodiment in that a plurality of connecting rods 245 are uniformly arranged around the outer shell on the outer side of the outer shell 241 at intervals, a plurality of connecting parts 246 which are arranged in one-to-one correspondence with the connecting rods are arranged on the cover 242, and the connecting parts 246 are connected with the connecting rods 245 in a quick-dismantling manner. Through the mode of quick detach connection, can be convenient quick change the tube-shape filter core, avoid leading to compression system to shut down because of changing the filter core overlength, further guarantee compression system's work efficiency.
Further, referring to fig. 3, 6 and 7, as a specific embodiment, the connection manner of the outer case and the cover is: the connecting portion 246 comprises a cylindrical member 2460 rotatably arranged in the cover body 242, a cylindrical cavity 2461 formed in the cylindrical member 2460, a second rotating rod 2462 coaxially arranged with the cylindrical member 2460 and rotatably arranged in the cylindrical member 2460, a circular plate 2463 is coaxially arranged at the part of the second rotating rod 2462 extending into the cylindrical cavity 2461, the outer circumferential surface of the circular plate 2463 is in sliding fit with the inner side wall of the cylindrical cavity 2461, a plurality of grooves 24630 are uniformly arranged on the outer circumferential surface of the circular plate 2463 at intervals along the circumferential direction, a plurality of channels 24610 are arranged on the outer side wall of the cylindrical cavity 2461 in the area corresponding to the circular plate 2463, locking balls 2464 are arranged in each channel, a sliding sleeve 2465 is sleeved outside the cylindrical member 2460, a second pressure spring 66 is further arranged between the sliding sleeve 2465 and the cover body 242, a limiting member 24601 is further arranged on the cylindrical member 60, and the second pressure spring 24601 can abut against the limiting member 24601 under the action of the second pressure spring 2466; a second threaded portion 24620 is provided at a portion of the second rotating rod 2462 extending out of the cylindrical cavity 2461, a second screw nut 2451 is provided at an end portion of the connecting rod 245, and a channel 2452 coaxially provided with the second screw nut 2451 is provided in the connecting rod 245; wherein the cover body and the filter element cover are connected through a spherical hinge.
Further, the cover further comprises a ring member 247 surrounding the cover body, a plurality of sliding sleeves 2465 are connected with the ring member 247, and handles 2420 are arranged on two opposite sides of the cover body.
Specifically, the method for connecting and disassembling the cover body and the outer shell comprises the following steps: when the cover 242 is required to be mounted on the outer shell, an operator holds the two handles 2420 with hands, pulls the annular piece 247 by fingers against the elastic force of the second pressure spring 2466 to enable the sliding sleeve 2465 to slide and expose the locking balls 2464, then the second rotating rods 2462 are in one-to-one correspondence with the second lead screw nuts 2452 on the connecting rods 245, then thrust in the direction of the outer shell is applied to the handles, the second rotating rods 2462 cannot rotate under the action of the thrust, the second threaded parts 24620 of the second rotating rods 2462 are screwed into the second lead screw nuts 2451 until the filter element covers are tightly covered on the ends of the cylindrical filter element, and the repulsive force of the elastic air bags 261, the third annular magnetic piece 263 and the second annular magnetic piece 262 is resisted to partially compress the air bags, then the annular piece 247 is released, then the thrust to the handles is released, the second pressure spring pushes the sliding sleeve 2465 to be arranged on the periphery of the locking balls 2464, the locking balls are pushed into the grooves 24630 of the circular plates 2463, the second rotating rods 2462 are locked, the second rotating rods cannot rotate, the second rotating rods are enabled to be tightly covered on the end portions of the cylindrical filter element covers, and the second rotating rods are required to be separated from the second connecting rods, and the second rotating bodies are required to be separated, and the annular bodies are pulled to rotate, and the second rotating bodies are enabled to rotate, and the annular bodies to be separated.
Further, referring to fig. 6, in order to ensure that the second threaded portion of each second connecting rod can correspond to the thread of the second screw nut, the second threaded portion can be smoothly screwed into the second screw nut when a pushing force is applied to the cover body, a sliding block 248 is slidably disposed at the bottom of the cylindrical cavity 2461 along the axial direction thereof, a third compression spring 249 is further disposed between the sliding block and the bottom of the cylindrical cavity, and the third compression spring can press the sliding block 248 against the end portion of the second rotating rod, and the sliding block is in non-rotating fit with the cylindrical cavity 2461. The third compression spring provides proper thrust to enable the sliding block 248 to be in contact with the second rotating rod, so that certain resistance is provided for the second rotating rod, the second rotating rod cannot freely rotate when being unscrewed from the second screw nut, and position retention is performed, so that the second threaded portion of each second connecting rod can be guaranteed to correspond to threads of the second screw nut.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (8)
1. The efficient compression system for realizing air separation is characterized by comprising a gas compressor (1), an air inlet channel (10) arranged at the air inlet of the gas compressor (1), at least two air filtering devices (2) communicated with the air inlet channel (10), a control valve (21) arranged between each air filtering device (2) and the air inlet, a control device (3), a humidity detection device (4) for detecting ambient humidity and a fine dust detection device (5) arranged at the air inlet channel (10), wherein the control device (3) is used for acquiring detection values of the humidity detection device (4) and the fine dust detection device (5) so as to control the opening and closing of the control valve (21);
the dust detection device (5) comprises an electrostatic adsorption plate (51) arranged in the air inlet channel (10), an electrostatic generation device (510) electrically connected with the electrostatic adsorption plate (51), an industrial camera (52) arranged corresponding to the electrostatic adsorption plate (51) and an air outlet (53) arranged at one side of the electrostatic adsorption plate (51), wherein the air outlet (53) is connected with a deionized air source (54), and the air outlet (53) faces the electrostatic adsorption plate (51); when the compression system works, the static electricity generation device works, so that the static electricity adsorption plate carries static electricity, the static electricity adsorption plate can adsorb tiny dust in air in the air inlet channel, the static electricity adsorption plate carries static electricity for a preset time period T, then an industrial camera is controlled to photograph the static electricity adsorption plate, picture information on the surface of the static electricity adsorption plate is obtained, then the picture information is processed, the number of tiny dust adsorption particles on the static electricity adsorption plate is obtained, and the tiny dust content in the air inlet channel is determined according to the number of the attached tiny dust particles;
detecting the humidity in the air, and determining the standard value of exceeding the content of the dust in the air inlet channel (10) according to the different humidity; the judging method of the standard value of the exceeding of the content of the tiny dust in the air inlet channel (10) comprises the following steps: and simulating the operation of the air compressor, respectively working under different air humidity, controlling the dust content in the air inlet channel to gradually increase, and measuring the dust attached to the compression blades of the air compressor after simulating the operation for 100 hours under the condition of each dust content until the dust content corresponding to the dust attached to the compression blades exceeding the standard is obtained, and determining the dust content exceeding the standard value under the air humidity.
2. The efficient compression system for realizing air separation according to claim 1, wherein a sealed dust-free cavity (55) is arranged on the side wall of the air inlet channel (10), the electrostatic adsorption plate (51) is a side wall of the dust-free cavity (55) in the air inlet channel (10), the electrostatic adsorption plate (51) is a transparent plate, and the industrial camera (52) is arranged on the side wall of the dust-free cavity (55).
3. An efficient compression system for achieving air separation according to claim 2, characterized in that the plate surface of the electrostatic adsorption plate (51) is parallel to the axial direction of the air inlet channel (10), a parallel light source (56) is arranged in the air inlet channel (10) opposite to the electrostatic adsorption plate (51), and the light rays emitted by the parallel light source (56) are perpendicular to the plate surface of the electrostatic adsorption plate (51).
4. An efficient compression system for achieving air separation according to claim 1, characterized in that the air filtration device (2) is provided with a cleaning device comprising a blowback branch (22), one end of which is connected between the air filtration device (2) and the corresponding control valve (21), the other end is in communication with a high pressure air supply (220), and each blowback branch (22) is provided with a solenoid valve (221).
5. The efficient compression system for achieving air separation according to claim 4, wherein the air filtering device (2) comprises a cylindrical ventilation pipe (201), a mounting seat (202) arranged at one end of the ventilation pipe (201) and a cylindrical filter element (23) arranged on the mounting seat, the cleaning device further comprises a rotating assembly (24) arranged around the cylindrical filter element (23), at least one group of cleaning assemblies (25) are arranged on the rotating assembly (24), the cleaning assemblies (25) comprise cleaning brushes (251) contacted with the outer surface of the cylindrical filter element (23), and the rotating assembly (24) can drive the cleaning brushes (251) to axially rotate around the cylindrical filter element (23).
6. The efficient air separation compression system according to claim 5, wherein the rotating assembly (24) comprises an outer shell (241) coaxially arranged around the cylindrical filter element (23) and rotationally connected with the ventilation pipe (201), a cover body (242) covered on the outer shell, a filter element cover (243) covered on the end part of the cylindrical filter element (23), and a driving motor (244) arranged on the ventilation pipe (201) and in driving connection with the outer shell (241), the cover body (242) is rotationally connected with the filter element cover (243), and the cleaning assembly (25) is arranged on the inner side wall of the outer shell.
7. The efficient air separation compression system according to claim 6, wherein both ends of the cylindrical filter element (23) are provided with first annular magnetic members (230), the mounting base (202) and the filter element cover (243) are provided with annular sealing members (26), the annular sealing members (26) comprise elastic air bags (261), second annular magnetic members (262) and third annular magnetic members (263) which are arranged on the side walls of the elastic air bags and are parallel to each other, the second annular magnetic members (262) close to the cylindrical filter element (23) are in magnetic adsorption fit with the first annular magnetic members (230), and the second annular magnetic members (262) and the third annular magnetic members (263) are in repulsive fit.
8. A high efficiency compression system for effecting air separation as in claim 7 wherein the magnetic directions of the first annular magnetic members (230) at both ends of the cylindrical filter element (23) are opposite.
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| CN115445342A (en) * | 2022-10-09 | 2022-12-09 | 广东广星气体有限公司 | Air separation device adopting normal-temperature molecular sieve for purification and air separation process thereof |
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