CN108434932B - Internally-in and externally-out compressed air drying filter cartridge - Google Patents
Internally-in and externally-out compressed air drying filter cartridge Download PDFInfo
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- CN108434932B CN108434932B CN201810321489.0A CN201810321489A CN108434932B CN 108434932 B CN108434932 B CN 108434932B CN 201810321489 A CN201810321489 A CN 201810321489A CN 108434932 B CN108434932 B CN 108434932B
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- 238000007605 air drying Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 120
- 239000000428 dust Substances 0.000 claims abstract description 46
- 239000003463 adsorbent Substances 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 48
- 230000000694 effects Effects 0.000 abstract description 21
- 238000009434 installation Methods 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004887 air purification Methods 0.000 abstract description 3
- 230000008929 regeneration Effects 0.000 description 18
- 238000011069 regeneration method Methods 0.000 description 18
- 239000007789 gas Substances 0.000 description 14
- 238000001125 extrusion Methods 0.000 description 8
- 238000007599 discharging Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
- B01D46/0006—Filter elements or cartridges installed in a drawer-like manner
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
-
- 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
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Drying Of Gases (AREA)
Abstract
The invention discloses an internal-in and external-out type compressed air drying filter cartridge. Compared with the prior art, the gas drying and purifying device has the advantages of less parts, high integration level, convenience in installation and maintenance and better gas drying and purifying effect. The invention comprises an internal-inlet and external-outlet type compressed air drying filter cartridge, which comprises a first cylinder body, wherein a second cylinder body and a dust filtering filter element are arranged in the first cylinder body, the first cylinder body is connected with the second cylinder body through an annular base, an annular sealing gasket and a second cylinder bottom cover which are arranged below the first cylinder body, an air inlet channel is arranged at the bottom of the second cylinder body, the dust filtering filter element is positioned on a filter element mounting seat arranged at the top of the second cylinder body, the dust filtering filter element is arranged above the filter element mounting seat, the top of the second cylinder body is communicated with the dust filtering filter element, an adsorbent is filled in the cylinder of the second cylinder body, a gap exists between the first cylinder body and the second cylinder body, an air outlet channel is formed, and an air inlet of the air outlet channel is communicated with the dust filtering filter element. The invention is applied to the technical field of air purification.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to an internal-inlet and external-outlet compressed air drying filter cartridge.
Background
In the prior art, a compressed air dryer with publication number CN205683814U is generally of a double-cylinder structure, and its implementation form: including a barrel that has the inner chamber, the inner chamber bottom of barrel is provided with a recess, is provided with the dust filter core on the recess, and the one end of this dust filter core is provided with filter screen, and the lower extreme center of this last filter screen is provided with wears out the barrel and is linked together with the blast pipe of dust filter core, and the spring base that is equipped with compression spring of this barrel looks adaptation, compression spring upper end is connected with filter screen down, go up filter screen, blast pipe and filter screen three down and form a cavity, this cavity intussuseption is filled with the adsorbent. This approach has the following disadvantages: 1. the top of the filling cavity of the adsorbent is open to the outside, and the gas to be dried can quickly flow out of the region of the adsorbent, so that the adsorption opportunity of moisture in the gas is reduced, and the adsorption effect is poor; 2. the exhaust pipe arranged in the middle has an extrusion effect on the adsorbent, so that the arrangement density of the adsorbent is uneven, the tunnel effect of air flow is easy to generate, the air flow can not be ensured to uniformly pass through the adsorbent to exert the maximum effect of the adsorbent, and the air drying effect is weakened; 3. the parts are more, the points needing sealing are more easy to leak, and the installation and maintenance are inconvenient; 4. the air flow guide plates are arranged in the direction inclined from the two corners of the top to the center of the bottom, so that the air flow quantity flowing to the upper part in the filter core cavity of the dust filter is smaller than the air flow quantity flowing to the lower part, and the effective filtering speed of the filter core of the dust filter is reduced.
Disclosure of Invention
The invention aims to solve the technical problems and provide the compressed air drying filter cartridge which has the advantages of few parts, high integration level, good filtering effect and convenient installation and maintenance.
The invention is realized by the following technical scheme: the invention comprises a main air inlet pipeline, a main air outlet pipeline, a first discharge valve component, a second discharge valve component, a first drying cylinder, a second drying cylinder and an electromagnetic valve, wherein the main air inlet pipeline is connected with the first discharge valve component and the second discharge valve component, a first air inlet hole of the first discharge valve component is communicated with the first drying cylinder, a second air inlet hole of the second discharge valve component is communicated with the second drying cylinder, a first air outlet of the first drying cylinder and a second air outlet of the second drying cylinder are connected with the main air outlet pipeline, the electromagnetic valve is connected with a first pilot air hole of the first discharge valve component, the electromagnetic valve is also connected with a second pilot air hole of the second discharge valve component, the action of the pilot air hole is limited, the opening and the closing of the discharge valve are controlled, the valve core of the electromagnetic valve is switched between the first valve position and the second valve position, the first pilot air hole and the second air hole are sequentially introduced with compressed air, one of the compressed air after the first air inlet hole and the second air outlet are decompressed into the electromagnetic valve, and the first air outlet and the second air outlet are communicated through a regeneration pipeline. The electromagnetic valve is a two-position three-way electromagnetic valve, and the valve core of the two-position three-way electromagnetic valve is switched between a first valve position and a second valve position, so that the control function of the two-position five-way valve is realized, the first discharge valve component and the second discharge valve component are ensured to obtain pilot gas at respective switching time points, and the air flow channel of the discharge valve component is opened according to the time sequence requirement to discharge waste gas generated in the regeneration process of the auxiliary agent in the side drying cylinder; and the other exhaust pilot gas, so that the gas flow channel of the exhaust valve assembly is closed according to the time sequence requirement, the gas in the main gas inlet pipeline is guided into the side drying cylinders for drying, and the two sides of the main gas inlet pipeline are switched back and forth, so that the gas drying function of each drying cylinder and the regeneration function of the adsorbent in the drying cylinder are realized.
Further, a second valve core of the electromagnetic valve is switched between two valve positions, so that compressed air is sequentially discharged from the compressed air chambers of the second discharge valve assembly and the first discharge valve assembly; one of the compressed air chambers of the second discharge valve assembly and the first discharge valve assembly is charged, and the other is discharged. When the compressed air chamber of the second discharge valve assembly is in air, the air can be sent to the second drying cylinder for drying, and the compressed air chamber of the first discharge valve assembly is out of air, so that the regenerated waste gas in the first drying cylinder can be discharged; vice versa, the two sides are switched repeatedly.
Further, a regeneration throttle valve, such as a regeneration plug, is disposed in the regeneration pipeline, and the regeneration throttle valve is communicated with the electromagnetic valve. The regeneration throttle valve can limit the required air quantity, so that the waste of air sources is avoided.
Further, the main air inlet pipeline is provided with a multifunctional drying filter, so that the gas can be primarily purified, and clean gas is ensured to enter the main air inlet pipeline.
Further, first dry section of thick bamboo and/or second dry section of thick bamboo be interior formula compressed air drying cartridge filter that advances out, including first barrel, be provided with second barrel and dust filtration filter core in the first barrel, first barrel is connected the second barrel through annular base, annular sealing washer and the second barrel bottom lid of its inside below, the bottom of second barrel is provided with the inlet channel, dust filtration filter core is located the filter core mount pad of second barrel top installation, dust filtration filter core installs in the top of filter core mount pad, the top intercommunication dust filtration filter core of second barrel, the section of thick bamboo of second barrel is filled with the adsorbent of certain height with cyclone filler, there is the clearance and forms the passageway of giving vent to anger between first barrel and the second barrel, the air inlet of passageway of giving vent to anger is linked together with dust filtration filter core. The compressed air drying filter cartridge is less in parts, high in integration level, good in filtering effect and convenient to install and maintain.
The cover at the top of the second cylinder is of a filter screen structure, the top of the second cylinder is detachably provided with a filter element mounting seat in a buckling and/or threaded mode, the filter element mounting seat is provided with a central hole, and the neck-shaped opening part of the dust filter element is embedded into the central hole of the filter element mounting seat and is sealed and mounted through a filter element sealing ring.
The adsorbent is in pressure connection and positioning through a lower filter screen below the adsorbent and a compression spring below the lower filter screen, a second barrel bottom cover is detachably arranged at the bottom of the second barrel in a buckling and/or threaded mode, the second barrel bottom cover is in pressure connection with the lower end of the compression spring, the lower filter screen and the lower filter screen form a state that the upper end and the lower end of the compression spring are in pressure connection, and an air inlet channel is communicated with the second barrel through an opening, preferably a central hole, of the second barrel bottom cover.
The air inlet channel is formed below the second cylinder body by an annular base and an annular sealing gasket, a second cylinder bottom cover is detachably arranged at the bottom of the second cylinder body in a buckling and/or threaded mode, the annular base is arranged below the second cylinder bottom cover and is sealed by the annular sealing gasket, the cross section of the annular sealing gasket is L-shaped, the transverse part of the annular sealing gasket is padded between the second cylinder bottom cover and the annular base, the vertical part of the annular sealing gasket is tightly attached upwards along the hole wall of the hole of the second cylinder bottom cover, and the air inlet channel is communicated with the inner cavity of the second cylinder body through the hole of the second cylinder bottom cover.
The air inlet channel is formed by the annular base and the annular sealing gasket under the second cylinder, the bottom of the second cylinder is detachably provided with a second cylinder bottom cover in a buckling and/or threaded mode, the air inlet channel is communicated with the second cylinder through the second cylinder bottom cover, and the air inlet channel is communicated with the second cylinder through an opening, preferably a central hole, of the second cylinder bottom cover.
The annular base is arranged at the bottom of the first cylinder body through an assembly sealing ring below the annular base.
The annular base is provided with an air outlet, and an air outlet channel formed between the first cylinder and the second cylinder is communicated with the air outlet.
The dust filter is characterized in that an MCU controller is arranged outside the first cylinder, an air flow sensor is arranged in a cavity formed between the dust filter core and the first cylinder, a humidity sensor is further arranged inside the dust filter core, the air flow sensor and the humidity sensor are electrically connected with the MCU controller, and the MCU controller is electrically connected with an air flow indicator lamp and a humidity indicator lamp.
The first cylinder body and the second cylinder body are coaxial cylinders, the radial section of the air outlet channel is annular, and the coaxial uniform annular shape is best adopted.
Further, the first discharge valve assembly comprises a first discharge cavity, a first piston seal, a first spring, a first sealing rod and a first sealing valve plate, the first discharge cavity comprises a first pilot cavity and a first air inlet cavity, the first pilot air hole is communicated with the first pilot cavity, the main air inlet pipeline is communicated with the first air inlet hole through the first air inlet cavity, one end of the first sealing rod is connected with the first piston seal, the first piston seal is positioned in the first pilot cavity, the first spring is coiled on the first sealing rod, one bottom end of the first spring is in contact with the first piston seal, and the other end of the first sealing rod is connected with the first sealing valve plate positioned in the first air inlet cavity.
Further, the second discharge valve assembly and the first discharge valve assembly have the same parts and connection modes, and are symmetrically installed.
Further, the first valve core of the electromagnetic valve is switched between two valve positions, so that the first air inlet cavity is connected and disconnected with the first air outlet pipeline, and correspondingly, the second air inlet cavity is disconnected and connected with the second air outlet pipeline.
Further, the first discharge valve assembly is provided with a first discharge orifice and the second discharge valve assembly is provided with a second discharge orifice, both of which are in communication with the discharge line and open to the discharge muffler.
Further, the first discharge valve assembly or the second discharge valve assembly comprises a combined assembly protruding sealing structure valve plate, the combined assembly protruding sealing structure valve plate comprises a sealing rod, a limiting part is fixedly arranged on the sealing rod, a supporting valve plate is arranged on the limiting part, a protruding structure sealing ring is arranged in a groove at the upper end of the supporting valve plate, a pressing plate is arranged on a bearing surface of the protruding structure sealing ring, a detachable fastening piece is arranged on the upper end surface of the pressing plate, and the pressing plate, the protruding structure sealing ring and the supporting valve plate are fastened on the sealing rod. The effects that the sealing ring is replaceable and other parts can be reused can be achieved.
The valve plate of the combined assembly convex sealing structure comprises an extrusion conical surface of the pressing plate which is detachably arranged on the inner conical surface of the convex sealing ring, and the maximum outer diameter of the extrusion conical surface of the pressing plateCompared with the maximum inner diameter/>, of the inner conical surface of the sealing ring with the convex structureSlightly larger, the angle alpha of the extrusion conical surface of the pressing plate is equal to the angle of the inner conical surface of the sealing ring with the convex structure
The valve plate comprises a radial supporting surface of a pressing plate which is detachably arranged in the inner diameter surface of a sealing ring of the convex structure, and the diameter of the radial supporting surface of the pressing plateCompared with the diameter/>, of the inner diameter surface of the sealing ring with the convex structureSlightly larger.
The valve plate of the combined assembly convex sealing structure comprises a Y value of the thickness of the pressing plate, wherein the Y value of the thickness of the pressing plate is equal to the Y value of the thickness of the sealing ring of the convex structure, and the H value of the thickness of the pressing plate is smaller than the H value of the thickness of the sealing ring of the convex structure.
The compression amount of h value of the thickness of the sealing ring of the convex structure is not lower than 20% after the valve plate is assembled.
The valve plate comprises an angle beta of an outer conical surface of the sealing ring of the convex structure, wherein the angle beta of the outer conical surface of the sealing ring of the convex structure is equal to the angle theta of the supporting conical surface in a groove of the supporting valve plate, and the maximum outer diameter of the outer conical surface of the sealing ring of the convex structureSlightly greater than the maximum inner diameter/>, of the supporting conical surface in the groove of the supporting valve plate
The valve plate of the combined assembly convex sealing structure comprises a sealing ring arranged between the pressing plate and the sealing rod.
The valve plate of the combined assembly convex sealing structure comprises a detachable fastener, wherein the detachable fastener is connected in a threaded or fastening way.
The valve plate of the combined assembly convex sealing structure comprises a detachable flat gasket arranged between the detachable fastening piece and the pressing plate.
The valve plate of the combined assembly convex sealing structure comprises a sealing ring with a convex structure, wherein the sealing ring is a circular sealing ring, a square sealing ring or a sealing ring with other abnormal shapes.
The beneficial effects are that: compared with the prior art, the internal-inlet and external-outlet compressed air drying filter cartridge has the following beneficial effects: 1. the filter element mounting seat and the bottom of the adsorbent filling cavity are utilized to form a sealing space, and the undried gas is accumulated in the filler in the adsorbent filling cavity, so that the time for adsorbing the moisture is longer, and the gas drying effect is better; 2. the middle exhaust pipe is eliminated, the extrusion effect of the middle exhaust pipe on the adsorbent is eliminated, the arrangement of the adsorbent is more uniform, the tunnel effect of air flow is not easy to generate, the air flow is ensured to uniformly pass through the adsorbent to exert the maximum effect of the adsorbent, and the air drying effect is better; 3. the components are few, the integration level is high, the adsorption effect of the adsorbent is good, and the installation and maintenance are convenient; 4. and the airflow guide plate is omitted, so that the airflow flowing to the upper part and the lower part in the cavity of the dust filter core is as large, the effective filtering area of the dust filter core is utilized to the greatest extent, and the filtering speed is increased.
Drawings
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of an initial shutdown state of the present invention;
FIG. 2 is a schematic diagram of the solenoid valve in the de-energized state of the present invention when inflated;
FIG. 3 is a schematic diagram of the solenoid valve energized state during inflation in accordance with the present invention;
FIG. 4 is a schematic illustration of the first and second discharge valve assemblies in an initial shutdown state;
FIG. 5 is a schematic illustration of the solenoid valve de-energized when the first and second bleed valve assemblies are inflated;
FIG. 6 is a schematic illustration of the solenoid valve energized when the first and second discharge valve assemblies are inflated;
FIG. 7 is a cross-sectional view of the present invention;
FIG. 8 is a cross-sectional view of section 1 of the present invention;
FIG. 9 is a schematic side elevational view of the present invention;
FIG. 10 is a cross-sectional view of an in-out compressed air drying filter cartridge;
FIG. 11 is a cross-sectional view of a valve plate of a composite-fitting boss seal structure;
FIG. 12 is a cross-sectional view of a pressure plate incorporating a raised sealing structure valve plate;
FIG. 13 is a cross-sectional view of a raised structure seal ring assembled with a raised seal structure valve plate;
FIG. 14 is a cross-sectional view of a support valve plate incorporating a raised sealing structure valve plate.
In the figure: the main inlet pipe 1, the main outlet pipe 2, the first discharge valve assembly 3, the second discharge valve assembly 4, the first drying cylinder 5, the second drying cylinder 6, the solenoid valve 7, the regeneration throttle valve 8, the first inlet port 31, the first pilot air port 32, the first piston seal 33, the first spring 34, the first sealing valve plate 35, the first sealing rod 36, the first pilot chamber 37, the first inlet chamber 38, the first discharge orifice 39, the second inlet port 41, the second pilot air port 42, the second piston seal 43, the second spring 44, the second sealing valve plate 45, the second sealing rod 46, the second pilot chamber 47, the second inlet chamber 48, the second discharge orifice 49, the multifunction drying filter 50, the main regeneration pipe 51, the first cylinder 201, the dust filter cartridge 202, the cartridge seal 203, the cartridge mount 204, the adsorbent 205, the second cylinder 206, the lower filter mesh 207, the compression spring 208, the annular base 209, the assembly seal 2010, the annular seal 2011, the second cylinder bottom cover 2012, the sealing rod 301, the seal plate 302, the support seal plate 303, the support seal plate 305, the seal plate 307, and the seal plate 307.
Detailed Description
As shown in fig. 1 to 9, in this embodiment, the present invention includes a main air inlet pipeline 1, a main air outlet pipeline 2, a first discharge valve assembly 3, a second discharge valve assembly 4, a first drying cylinder 5, a second drying cylinder 6 and a solenoid valve 7, where the main air inlet pipeline 1 is connected to the first discharge valve assembly 3 and the second discharge valve assembly 4, a first air inlet 31 of the first discharge valve assembly 3 is communicated with the first drying cylinder 5, a second air inlet 41 of the second discharge valve assembly 4 is communicated with the second drying cylinder 6, a first air outlet 9 of the first drying cylinder 5 and a second air outlet 10 of the second drying cylinder 6 are connected to the main air outlet pipeline 2, the solenoid valve 7 is also connected to a first pilot air hole 32 of the first discharge valve assembly 3, the solenoid valve 7 is also connected to a second pilot air hole 42 of the second discharge valve assembly 4, the solenoid valve 7 is controlled to open and close by limiting the pilot air hole, and the valve core of the solenoid valve 7 is switched between the first pilot air hole 32 and the second pilot air hole 42, and the second air inlet 10 of the second air valve is compressed by the first air outlet 9 and the second air outlet 10, and the second air can be compressed by the first air outlet 51 and the second air outlet.
Further, the second valve core of the electromagnetic valve 7 is switched between two valve positions, so that the compressed air in the compressed air chambers of the second discharge valve assembly 4 and the first discharge valve assembly 3 is discharged successively; one of the compressed air chambers of the second discharge valve assembly 4 and the first discharge valve assembly 3 is charged, and the other is discharged.
Preferably, a regeneration throttle valve 8, such as a regeneration plug, is disposed in the regeneration line 51, and the regeneration throttle valve 8 is in communication with the solenoid valve 7. The regeneration plug can limit the required air quantity, and avoid the waste of air sources. A small amount of dried compressed air enters another drying cylinder through a regeneration channel and a regeneration plug to regenerate the drying agent of the cylinder, and compressed air carrying moisture enters the discharge channel through a first discharge hole 39 or a second discharge hole 49 of the air inlet and outlet valve group.
Preferably, a multifunctional drier-filter 50 is arranged at the main air inlet pipeline 1.
Preferably, the first drying cylinder 5 and/or the second drying cylinder 6 are both an internal-inlet-outlet type compressed air drying filter cylinder, as shown in fig. 10, and the internal-inlet-outlet type compressed air drying filter cylinder comprises a first cylinder 201, a second cylinder 206 and a dust filtering filter core 202 are arranged in the first cylinder 201, the first cylinder 201 is connected with the second cylinder 206 through an annular base 209, an annular sealing gasket 2011 and a second cylinder bottom cover 2012 below the inner part of the first cylinder 201, an air inlet channel is arranged at the bottom of the second cylinder 206, the dust filtering filter core 202 is positioned on a filter core mounting seat 204 mounted at the top of the second cylinder 206, the dust filtering filter core 202 is mounted above the filter core mounting seat 204, the top of the second cylinder 206 is communicated with the dust filtering filter core 202, a cyclone filler is filled in the cylinder of the second cylinder 206 with an adsorbent 205 with a certain height, a gap is formed between the first cylinder 201 and the second cylinder 206, and an air outlet channel is formed, and an air inlet of the air outlet channel is communicated with the dust filtering filter core 202.
The cover on top of the second cylinder 206 is a screen structure, one of the embodiments: the top of the second cylinder 206 is detachably provided with a filter element mounting seat 204 in a nut and bolt mode; the cartridge mount 204 has a center hole, and the neck-shaped opening of the dust filter cartridge 202 is fitted into the center hole of the cartridge mount 204 and is sealed by the cartridge seal 203. A second embodiment: the top of the second cylinder 206 is detachably mounted with a cartridge mount 204 in a snap-fit manner, the cartridge mount 204 has a center hole, and the neck-shaped opening portion of the dust filter cartridge 202 is fitted into the center hole of the cartridge mount 204 and is sealed by a cartridge seal 203.
Preferably, the adsorbent 205 is crimped in place via a lower filter mesh 207 beneath it and a compression spring 208 beneath the lower filter mesh 207, one of the following embodiments: the bottom of the second cylinder 206 is connected with a second cylinder bottom 2012 by bolts and nuts, the second cylinder bottom 2012 is crimped at the lower end of the compression spring 208, and forms a state of crimping the compression spring 208 with the lower filter screen 207 at the upper and lower ends, and the air inlet passage passes through the center hole of the second cylinder bottom 2012 and communicates with the second cylinder 206. A second embodiment: the lower filter screen 207 can slide on the inner wall of the second cylinder 206, so as to compress the adsorbent 205 in the second cylinder 206, prevent the adsorbent 205 from moving and crushing during the cycle switching, and finally the bottom of the second cylinder 206 is connected with a second cylinder bottom cover 2012 by a buckle, the second cylinder bottom cover 2012 is crimped at the lower end of the compression spring 208, and forms a state that the upper end and the lower end are crimped with the compression spring 208 with the lower filter screen 207, and an air inlet channel passes through the central hole of the second cylinder bottom cover 2012 and is communicated with the second cylinder 206.
The annular base 209 is mounted to the bottom of the first barrel 201 by an assembly seal 2010 below it.
The annular base 209 is provided with an air outlet hole, and an air outlet channel formed between the first cylinder 201 and the second cylinder 206 is communicated with the air outlet hole.
The outside MCU controller that is equipped with of first barrel 201, dust filter core 202, filter core mount pad 204 with be equipped with air current sensor in the cavity that forms between the first barrel 201, dust filter core 202 is inside still to be provided with humidity transducer, air current sensor and humidity transducer all with MCU controller electric connection, MCU controller still electric connection has air current pilot lamp and humidity pilot lamp.
The first cylinder 201 and the second cylinder 206 are coaxial cylinders, and the radial cross section of the air outlet channel is circular, preferably coaxial uniform circular.
In the installation, the inside of the second cylinder 206 is filled with the adsorbent 205 having a certain height by the cyclone filler, then the lower filter screen 207 is placed on the filled adsorbent 205, the compression springs 208 are placed on the lower filter screen 207, and the adsorbent 205 is used for compression positioning through the lower filter screen 207 below the compression springs 208 below the lower filter screen 207, and one of the following embodiments: and then the second barrel bottom cover 2012 is connected to the bottom of the second barrel 206 through bolts and nuts, the filter element mounting seat 204 is mounted on the top of the second barrel 206 through bolts and nuts, the dust filter element 202 and the filter element mounting seat 204 are hermetically mounted through the filter element sealing ring 203, and finally the second barrel 206 is mounted on the bottom of the first barrel 201 through the annular base 209 and the assembly sealing ring 2010 below the second barrel through the annular base 209, so that the dust filter element is mounted on the using equipment. A second embodiment: the second barrel bottom cover 2012 is connected with the bottom of the second barrel 206 through a buckle, the dust filtering filter element 202 and the filter element mounting seat 204 are hermetically mounted through the filter element sealing ring 203, the dust filtering filter element is mounted on the top of the second barrel 206 through a buckle mode, the second barrel 206 is finally mounted on the bottom of the first barrel 201 through the annular base 209 and the assembly sealing ring 2010 below the second barrel bottom cover, and the dust filtering filter element is mounted on a using device.
When the air conditioner is used, the lower part of the first cylinder 201 is connected to the base of the dryer, compressed air is shunted into the second cylinder 206 when passing through the lower filter screen 207 in the second cylinder 206, then passes through the adsorbent 205, the adsorbent 205 can ensure that air flow uniformly passes through the second cylinder 206 to prevent tunnel effect, after the compressed air is adsorbed and dried by the adsorbent 205, the compressed air is blocked by the filter element mounting seat 204 and enters the dust filter element, tiny particles carried by the adsorbent 205 by the compressed air are filtered out from inside to outside through the dust filter element, clean compressed air is discharged by utilizing an air outlet channel formed by the first cylinder 201 and the second cylinder 206, and finally air is discharged by an air outlet hole of the annular base 209 to supply air for the using equipment. When the air flow indicator lights are on, it indicates that the drying filter cartridge is blocked, so that the drying filter cartridge is correspondingly maintained, and when the humidity indicator lights are on, it indicates that the adsorbent 205 of the drying filter cartridge cannot meet the drying effect, and the adsorbent 205 needs to be correspondingly replaced.
Preferably, the first exhaust valve assembly 3 includes a first exhaust chamber, a first piston seal 33, a first spring 34, a first sealing rod 36 and a first sealing valve plate 35, the first exhaust chamber includes a first pilot chamber 37 and a first air inlet chamber 38, the first pilot air hole 32 is communicated with the first pilot chamber 37, the main air inlet pipeline 1 is communicated with the first air inlet hole 31 through the first air inlet chamber 38, one end of the first sealing rod 36 is connected with the first piston seal 33, the first piston seal 33 is located in the first pilot chamber 37, the first spring 34 is coiled on the first sealing rod 36, one bottom end of the first spring 34 is in contact with the first piston seal 33, and the other end of the first sealing rod 36 is connected with the first sealing valve plate 35 located in the first air inlet chamber 38.
Preferably, the second discharge valve assembly 4 includes a second discharge chamber, a second piston seal 43, a second spring 44, a second sealing rod 46 and a second sealing valve plate 45, the second discharge chamber includes a second pilot chamber 47 and a second air inlet chamber 48, the second pilot air hole 42 is communicated with the second pilot chamber 47, the main air inlet pipe 1 is communicated with the second air inlet hole 41 through the second air inlet chamber 48, one end of the second sealing rod 46 is connected with the second piston seal 43, the second piston seal 43 is located in the second pilot chamber 47, the second spring 44 is coiled around the second sealing rod 46, one bottom end of the second spring 44 is contacted with the second piston seal 43, and the other end of the second sealing rod 46 is connected with the second sealing valve plate 45 located in the second air inlet chamber 48.
Preferably, the first valve core of the electromagnetic valve 7 is switched between two valve positions, so that the first air inlet cavity 38 is connected and disconnected with the first air outlet pipeline, and correspondingly, the second air inlet cavity 48 is disconnected and connected with the second air outlet pipeline.
Preferably, the first discharge valve assembly 3 is provided with a first discharge orifice 39 and the second discharge valve assembly 4 is provided with a second discharge orifice 49, both the first discharge orifice 39 and the second discharge orifice 49 being in communication with the discharge line, entering the discharge passage and being discharged through the discharge muffler.
Preferably, the first discharge valve assembly 3 or the second discharge valve assembly 4 comprises a valve plate with a combined assembly convex sealing structure, so that the effects of replaceable sealing rings and reusable other parts can be realized.
As shown in fig. 11, one embodiment of the valve plate of the assembled convex sealing structure is manufactured by adopting an assembled mode, one end of the sealing rod 301 is provided with an internal thread, a stepped shaft surface is fixedly arranged at a proper position of the end, a supporting valve plate 303 is detachably arranged on the stepped shaft surface, a groove with a conical surface at the upper end of the supporting valve plate 303 is detachably pressed into a sealing ring 304 of the convex structure, a pressing plate 305 is detachably arranged on a bearing surface of the sealing ring 304 of the convex structure, a sealing ring is arranged between the pressing plate 305 and the sealing rod 301 so as to ensure tightness between the pressing plate 305 and the sealing rod 301 after assembly, a detachable flat gasket 307 is arranged on the upper end surface of the pressing plate 305, so that the stability of the sealing performance of the valve plate of the assembled convex sealing structure is improved, and the flat gasket 307, the pressing plate 305, the sealing ring 304 of the convex structure and the supporting valve plate 303 are fastened on the internal thread of the sealing rod 301 by using screws.
As shown in fig. 12 and 13, the extrusion conical surface of the pressing plate 305 is detachably mounted on the inner conical surface of the protrusion structure sealing ring 304, and the maximum outer diameter of the extrusion conical surface of the pressing plate 305Compared to the maximum inner diameter/>, of the inner conical surface of the raised structure seal ring 304Slightly larger, the angle alpha of the extrusion conical surface of the pressing plate 305 is equal to the angle alpha of the inner conical surface of the sealing ring 304 with the convex structureThus, the matched conical surface can be ensured to achieve the compaction effect and the sealing effect on the sealing ring after assembly.
As shown in fig. 12 and 13, the radial support surface of the pressure plate 305 is detachably mounted within the inner diameter surface of the raised structural seal ring 304, and the diameter of the radial support surface of the pressure plate 305To be compared with the diameter/>, of the inner diameter surface of the raised structure seal ring 304Slightly larger, this ensures that the mating face has a supporting and sealing effect on the seal.
As shown in fig. 12 and 13, the Y value of the thickness of the pressing plate 305 is equal to the Y value of the thickness of the seal ring 304 with a convex structure, and the H value of the thickness of the pressing plate 305 is smaller than the H value of the thickness of the seal ring 304 with a convex structure, and the compression amount of the H value of the seal ring 304 with a convex structure is not lower than 20% after assembly, so as to ensure the tightness of the bearing surface of the seal ring and the stability of the whole seal ring assembly after assembly.
As shown in fig. 13 and 14, the angle β of the outer conical surface of the convex sealing ring 304 is equal to the angle θ of the support conical surface in the groove of the support valve plate 303, and the maximum outer diameter of the outer conical surface of the convex sealing ring 304Slightly greater than the maximum inner diameter/>, of the support cone in the groove of the support valve plate 303So as to ensure the tightness of the outer conical surface of the sealing ring after assembly.
As shown in fig. 11, the second embodiment of the valve plate of the assembled convex sealing structure is manufactured by adopting an assembled mode, one end of the sealing rod 301 is provided with external threads, an annular part surface is fixedly arranged at a proper position of the end, the groove with a conical surface at the upper end of the supporting valve plate 303 can be firstly detachably pressed into the convex sealing structure 304 to form a sealing assembly, and then the sealing assembly is arranged on the annular part surface fixedly arranged on the sealing rod 301, so that the assembled mode is simpler, the pressure bearing surface of the convex sealing structure 304 is detachably provided with the pressing plate 305, the sealing ring is arranged between the pressing plate 305 and the sealing rod 301 to ensure the sealing performance between the pressing plate 305 and the sealing rod 301 after assembly, and the upper end surface of the pressing plate 305 is provided with the detachable flat gasket 307, thereby being beneficial to improving the stability of the sealing performance of the valve plate of the assembled convex sealing structure. The pressing plate 305, the flat gasket 307, the convex structure sealing ring 304 and the supporting valve plate 303 are fastened on the external threads of the sealing rod 301 by nuts on the upper end face of the flat gasket 307, and the convex structure sealing ring 304 is convenient to replace after failure due to the fact that the parts are detachable and convenient to install and detach, and other parts except the sealing ring can be reused, so that resources are saved.
The working principle of the invention is as follows: when the invention is not in a stop state, the first discharging component and the second discharging component are respectively controlled by the thrust of the first spring 34 and the second spring 44, and the first discharging hole 39 and the second discharging hole 49 are respectively sealed to prevent the inner cavity of the first drying cylinder 5 and the inner cavity of the second drying cylinder 6 from being communicated with the atmosphere;
after the dryer is ventilated, the inner cavity of the first drying cylinder 5 and the inner cavity of the second drying cylinder 6 are simultaneously charged, the electromagnetic valve 7 is in a power-off state, and the second pilot air hole 42 is in a closed pressure release state under the control of the electromagnetic valve 7, the second discharge valve is in a charging state, and the second drying cylinder 6 is charged; simultaneously, the compressed air dried by the second drying cylinder 6 enters the first pilot cavity 37 of the first discharge valve assembly 3 through the electromagnetic valve 7 and the first pilot air hole 32, so that the pressure of the first spring 34, the first piston seal 33 and the main air inlet hole is overcome, the first sealing valve plate 35 is pushed, the first sealing rod 36 seals the first air inlet, the first discharge valve is in an exhaust state, and the first drying cylinder 5 is exhausted;
When the electromagnetic valve 7 is electrified, the first pilot air hole 32 is controlled by the electromagnetic valve 7 to be switched to be in a closed pressure relief state, the first discharge valve is in an air inlet state, and the inner cavity of the first drying cylinder 5 is in air inlet; simultaneously, the compressed air dried by the first drying cylinder 5 enters a second pilot cavity 47 of the second discharge valve assembly 4 through the electromagnetic valve 7 and the second pilot air hole 42, so that the pressure of the second spring 44, the second piston seal 43 and the main air inlet hole is overcome, the second sealing valve plate 45 is pushed, the second air inlet is sealed by the second sealing rod 46, the second discharge valve is in an exhaust state, and the second drying cylinder 6 is exhausted; the active switching of the compressed gas purifying operation of the first drying cylinder 5 and the second drying cylinder 6 is realized by controlling the opening and closing of the electromagnetic valve 7, and each drying cylinder obtains a regeneration cycle once every purifying operation, so as to provide continuously purified compressed air for subsequent equipment.
The invention is suitable for the field of air purification.
The above embodiments are not limited to the technical solution of the embodiments, and the embodiments may be combined with each other to form a new embodiment. The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present invention should be covered in the scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides an interior advance go out formula compressed air drying cartridge, including first barrel (201), be provided with second barrel (206) and dust filter core (202) in first barrel (201), the bottom of second barrel (206) is provided with the air inlet channel, dust filter core (202) are located second barrel (206) top, the top intercommunication dust filter core (202) of second barrel (206), the section of thick bamboo intussuseption of second barrel (206) is filled with adsorbent (205), characterized in that, there is the clearance and forms the air outlet channel between first barrel (201) and second barrel (206), the air inlet of air outlet channel is linked together with dust filter core (202), adsorbent (205) are through its below lower filter screen (207) and compression spring (208) pressure welding location, the bottom detachably of second barrel (206) is provided with second barrel bottom cover (2012), the bottom and the top of compression spring (208) are pressed respectively to second barrel bottom cover (2012), the air inlet channel is through second barrel bottom cover (2012) intercommunication second barrel (206), the air inlet channel's air inlet is linked together with dust filter core (202) through second barrel bottom cover (2012), second barrel (206) are sealed up through annular bottom cover (209), the annular base (209) is installed in the bottom of first barrel (201) through assembly sealing washer (2010) of its below, the middle part of annular base (209) upwards rises and supports second barrel bottom lid (2012), the venthole has been seted up on annular base (209), and the gas outlet channel is linked together with the venthole.
2. The inside-in and outside-out type compressed air drying filter cartridge according to claim 1, wherein a cartridge cover at the top of the second cartridge body (206) is of a filter screen structure, a filter element mounting seat (204) is mounted at the top of the second cartridge body (206), and a filter element mounting seat (204) and a dust filter element (202) are mounted in a sealing manner through a filter element sealing ring (203).
3. An in-and-out compressed air drying filter cartridge according to claim 2, wherein the upper side of the second cylinder (206) is detachably connected to the cartridge mount (204).
4. An in-out compressed air drying filter cartridge according to claim 1, wherein the detachable connection of the second cartridge bottom cap (2012) to the second cartridge body (206) is by means of a snap and/or screw.
5. The inside-in and outside-out type compressed air drying filter cartridge according to any one of claims 1 to 4, wherein an MCU controller is arranged outside the first cylinder (201), an air flow sensor is arranged in a cavity formed between the dust filtering filter element (202) and the first cylinder (201), a humidity sensor is further arranged inside the dust filtering filter element (202), the air flow sensor and the humidity sensor are electrically connected with the MCU controller, and the MCU controller is further electrically connected with an air flow indicator and a humidity indicator.
6. An in-and-out compressed air drying filter cartridge according to any one of claims 1 to 4, wherein the first cylinder (201) and the second cylinder (206) are coaxial cylinders, and the radial cross section of the air outlet channel is circular.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810321489.0A CN108434932B (en) | 2018-04-11 | 2018-04-11 | Internally-in and externally-out compressed air drying filter cartridge |
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| CN201810321489.0A CN108434932B (en) | 2018-04-11 | 2018-04-11 | Internally-in and externally-out compressed air drying filter cartridge |
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| CN108434932B true CN108434932B (en) | 2024-04-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108479165B (en) * | 2018-04-11 | 2024-05-24 | 珠海市思卡净化技术有限公司 | Valve plate with combined assembly bulge sealing structure |
| US10994238B2 (en) * | 2018-09-07 | 2021-05-04 | Air Products And Chemicals, Inc. | Radial flow adsorption vessel comprising flexible screen |
| CN111366425A (en) * | 2019-12-16 | 2020-07-03 | 西安交通大学 | Telescopic atmospheric particulates drying tube |
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|---|---|---|---|---|
| WO2005120682A1 (en) * | 2004-06-11 | 2005-12-22 | Chengdu Tianli Chemical Engineering Technology Co., Ltd. | Oxygen production process using three-stage pressure swing adsorption plants |
| CN105169898A (en) * | 2015-07-10 | 2015-12-23 | 浙江诸暨东港液压机械有限公司 | Commercial vehicle air dryer vibration regeneration type drying tank |
| CN106935367A (en) * | 2015-12-29 | 2017-07-07 | 江苏宁海电气有限公司 | For the double-cylinder type dehydrating breather of oil-filled transformer |
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2018
- 2018-04-11 CN CN201810321489.0A patent/CN108434932B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005120682A1 (en) * | 2004-06-11 | 2005-12-22 | Chengdu Tianli Chemical Engineering Technology Co., Ltd. | Oxygen production process using three-stage pressure swing adsorption plants |
| CN105169898A (en) * | 2015-07-10 | 2015-12-23 | 浙江诸暨东港液压机械有限公司 | Commercial vehicle air dryer vibration regeneration type drying tank |
| CN106935367A (en) * | 2015-12-29 | 2017-07-07 | 江苏宁海电气有限公司 | For the double-cylinder type dehydrating breather of oil-filled transformer |
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