CN218166503U - Device for cleaning and drying compressed air - Google Patents
Device for cleaning and drying compressed air Download PDFInfo
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- CN218166503U CN218166503U CN202222263712.5U CN202222263712U CN218166503U CN 218166503 U CN218166503 U CN 218166503U CN 202222263712 U CN202222263712 U CN 202222263712U CN 218166503 U CN218166503 U CN 218166503U
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Abstract
The utility model provides a device of clean and dry compressed air, the device includes support, leading filter, control box, two tower driers of adsorption type and rearmounted filter, the two tower driers of adsorption type include inlet end cover, aluminum alloy barrel, give vent to anger end cover and check valve subassembly, and the aluminum alloy barrel is inside to be equipped with first diffusion barrier, first support frame, an adsorption material encapsulation section of thick bamboo, protection device, second support frame and second diffusion barrier, forms adsorption tower body or blowback regeneration tower body, and check valve subassembly is installed in the end cover of giving vent to anger, is equipped with blowback regeneration gas's runner on the check valve subassembly. Utilize the utility model discloses, can solve the inherent defect that produces the dust in the use of current dry pearl desicator, can not become the secondary pollution source that the air supply was handled, can improve blowback regeneration efficiency, can realize that desicator output pressure is steady all the time.
Description
Technical Field
The utility model relates to a device for cleaning and drying compressed air.
Background
In the application of the microelectronic industry, the medical industry, the industrial automation industry, the rail transit industry, the food and beverage industry and the like, extremely high requirements are put forward on the cleanliness and the drying grade of compressed air or certain industrial gases so as to improve the production efficiency and reduce the fault rate and the maintenance cost of downstream equipment.
The conventional adsorption type dryer can treat impurities such as water mist, particles and oil contained in compressed air or certain industrial gases and provide clean and dry treated gases for downstream equipment, but has the inherent defects of pulverization and degradation of an adsorption medium, rapid attenuation of the performance of the dryer and the like in the application/use process. For example, in the conventional twin-tower type compressed air dryer, a certain amount of dry beads (made of clay mixed with adsorption media such as aluminosilicate, activated alumina, silica gel, etc.) are filled in a container, compressed air containing water enters from one end of the container, and when passing through the dry beads, moisture in the compressed air is adsorbed by an adsorbent to obtain dry compressed air, and the dry compressed air is output from the other end of the container. When a certain time is reached, the states of the two adsorption towers of the dryer are reversed, the adsorption tower which is originally in a dry state is changed into a back flushing regeneration, the tower body which is in the back flushing regeneration is changed into the adsorption tower, and the circulation is carried out so as to ensure that the compressed air dryer can be in a continuous working state. However, since the dry beads are mostly prepared in a spherical shape or a specific shape from materials such as aluminosilicate or alumina and a certain proportion of clay, when high-pressure and high-speed compressed air flows through a tower filled with the dry beads, the surfaces of the dry beads are rubbed with each other by the blowing of the high-pressure and high-speed compressed air, and some very fine powders are generated, and these powders flow out of an adsorption tower along with the compressed air and enter downstream equipment, so that the dry bead dryer becomes a secondary pollution source in the compressed air treatment. Meanwhile, due to the characteristic that clay bubble water contained in the drying beads can be degraded, under the action of water-containing compressed air, the drying beads are powdered greatly, so that the performance of the dryer is quickly attenuated. In addition, the existing dryer usually needs to arrange an independent back-blowing regeneration gas channel and a cut-off device in the air outlet end cover, so that back-blowing regeneration gas cannot be ejected from a central position, and the back-blowing regeneration efficiency of the dryer is poor. The existing dryer usually uses back flushing regeneration gas to maintain pressure, and opens or closes the air inlet channel when the double towers are switched, so that the output pressure of the dryer is easy to fluctuate, and continuous and stable output pressure cannot be realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a can solve and produce the inherent defect of dust in the use of current dry pearl desicator, can not become the secondary pollution source of air supply treatment, can improve blowback regeneration efficiency, can realize the device of the steady cleanness all the time of desicator delivery pressure and dry compressed air.
The utility model provides a technical scheme that its technical problem adopted is:
a device for cleaning and drying compressed air comprises a support, a pre-filter, a control box and an adsorption type double-tower dryer, wherein the pre-filter and the control box are installed on the front side of the support, the adsorption type double-tower dryer is installed on the rear side of the support, and the pre-filter is connected with the adsorption type double-tower dryer through a pipeline;
the adsorption type double-tower dryer comprises an air inlet end cover, two aluminum alloy cylinders, an air outlet end cover and a one-way valve assembly, wherein the air inlet end cover is arranged on a support, the two aluminum alloy cylinders are respectively arranged between the air inlet end cover and the air outlet end cover, a first diffusion structure, a first support frame, an adsorption material packaging cylinder, a protection device, a second support frame and a second diffusion structure are arranged in each aluminum alloy cylinder, the adsorption material packaging cylinder consists of the packaging end cover, the aluminum alloy cylinders and a sheet adsorption material, the sheet adsorption material is of a strip-shaped multilayer winding structure in the aluminum alloy cylinder, each layer of gap is a gas flow channel, the first diffusion structure and the first support frame are arranged on the air inlet end cover, the adsorption material packaging cylinder is arranged on the first support frame, the protection device is arranged on the adsorption material packaging cylinder, the second support frame is arranged between the protection device and the air outlet end cover, the second diffusion structure is arranged on the air outlet end cover to form an adsorption tower body or a back-blowing regeneration tower body, the two one-way valve assemblies are respectively arranged in the tower body, each one-way valve assembly is controlled, and a back-way gas regeneration flow channel is arranged on the air regeneration tower body;
be equipped with inlet channel, exhaust passage, air outlet channel in the inlet end cover, the outside of inlet end cover is equipped with two control solenoid valves, and every tower body corresponds sets up one, and all control solenoid valves are connected with the control box, carry out operating condition's switching.
Further, the aluminum alloy cylinder body is connected with the air inlet end cover and the air outlet end cover through the threaded holes in the two sides through bolts, and O-shaped rings are arranged between the aluminum alloy cylinder body and the air inlet end cover and between the aluminum alloy cylinder body and the air outlet end cover for sealing.
Furthermore, one side of the first diffusion structure is a precision machining concave surface body, four counter bores are arranged at the outer circumference of the first diffusion structure and used for installing the heads of four bolts for locking the first diffusion structure into the first diffusion structure, and the second diffusion structure is identical to the first diffusion structure.
Furthermore, the first support frame and the second support frame are both cylindrical structures.
Furthermore, the protection device is a spoke-shaped structure flat plate, four spokes are arranged between the solid hub and the rim, the solid hub presses the center of the adsorption material packaging barrel, and the rim is located between the adsorption material packaging barrel and the second support frame.
Furthermore, the check valve subassembly includes check valve apron, uide bushing, check valve apron sealing washer, check valve spring and check valve plate, the uide bushing is installed on the check valve apron, the check valve spring housing is in the upper portion outside of check valve plate, and the upper end of check valve plate stretches into in the uide bushing, the check valve apron is installed on the end cover of giving vent to anger, check valve apron sealing washer is installed between check valve apron and the end cover of giving vent to anger, the lower terminal surface of check valve plate is equipped with vulcanized rubber, be equipped with the intercommunicating pore on the check valve plate, as the runner of blowback regeneration gas.
Further, the control electromagnetic valve is a normally open function electromagnetic valve reset by a two-position three-way spring.
Further, a muffler is installed at an outlet of the exhaust passage.
And furthermore, a rear filter is also arranged and is arranged at the air outlet of the adsorption type double-tower dryer.
The method for cleaning and drying compressed air implemented with said device is:
compressed air generated by a compressor enters a pre-filter from an air inlet for pretreatment, the compressed air treated by the pre-filter enters an adsorption type double-tower dryer, gaseous water contained in the compressed air is removed by the adsorption type double-tower dryer, the gaseous water is discharged from an air outlet to provide dried compressed air for downstream equipment, and the double-tower state is switched according to a time sequence set in a control box;
specifically, the control box controls the actions of the control electromagnetic valves of the adsorption tower body and the back-blowing regeneration tower body to determine the state of the dryer tower body, namely the tower body in the adsorption state, wherein an air inlet channel of the tower body is communicated with an air outlet channel, so that compressed air enters the tower body to be adsorbed and dried, the air outlet channel is not communicated with the air outlet channel, and the compressed air can only flow to one side of an air outlet end cover; meanwhile, in the tower body in a back flushing regeneration state, the air inlet channel is not communicated with the air outlet channel, so that compressed air cannot enter the tower body, and the air outlet channel is communicated with the air outlet channel, so that back flushing regeneration gas can flow out of the tower body and enter the air outlet channel to be exhausted to the atmosphere;
in the adsorption tower body, compressed air flows out from an air inlet of an air inlet end cover, and is uniformly blown to the periphery of an aluminum alloy cylinder under the action of a first diffusion structure arranged on the inner side of the air inlet end cover, meanwhile, a first support frame is arranged between the inner side of the air inlet end cover and an adsorption material packaging cylinder, so that an enough space is formed to further reduce the flow rate of the compressed air, the compressed air is ensured to uniformly penetrate through the adsorption material packaging cylinder at a low speed, the adsorption material is ensured to fully adsorb moisture in the compressed air, a protection device is arranged at the rear end of the adsorption material packaging cylinder, a second support frame above the protection device is fixed above the adsorption material packaging cylinder, the protection device is attached to a boss at the center of the adsorption material packaging cylinder, the support strength of the adsorption material packaging cylinder is enhanced, and the stable and safe operation of the adsorption material packaging cylinder under high pressure is ensured; after the compressed air after drying treatment passes through the one-way valve assembly, the adsorption type double-tower dryer is discharged from a flow passage in the air outlet end cover;
in the back flushing regeneration tower body, the regeneration gas flowing out of the adsorption tower body is blown out from a hole in the center of the check valve component, the regeneration gas is uniformly blown to the periphery of the aluminum alloy cylinder under the action of a second diffusion structure on the inner side of the gas outlet end cover, and meanwhile, a second support frame is arranged between the inner side of the gas outlet end cover and the adsorption material packaging cylinder to construct an enough space for further reducing the flow rate and pressure of the regeneration gas, so that the regeneration gas is ensured to completely purge water vapor separated out from the adsorption material, the regeneration efficiency is improved, and the consumption of the back flushing regeneration gas is reduced;
when the double-tower state is about to be switched, under the control of a preset program of a control box, the tower body in a back flushing regeneration state controls the action of an electromagnetic valve, so that an air inlet channel and an air outlet channel of the tower body are communicated, compressed air can enter the tower body, an air outlet channel and the air outlet channel are not communicated, the compressed air can only flow to one side of an air outlet end cover, at the moment, an adsorption material packaging cylinder in the tower body starts to adsorb moisture in the compressed air, namely the compressed air is converted into an adsorption tower, the pressure of the tower body rapidly rises in a short time, when a one-way valve plate in a one-way valve component of the original back flushing regeneration tower body is completely opened, the pressure in the original back flushing regeneration tower body is consistent with that of the adsorption tower body, and the process is called as a pressure maintaining stage of the back flushing regeneration tower; under the control of a preset program of the control box, the tower body in an adsorption state controls the action of the electromagnetic valve, the air inlet channel and the air outlet channel are not communicated, so that compressed air can not enter the tower body again, the air outlet channel and the air outlet channel 2 are communicated, so that gas in the adsorption tower body rapidly flows out of the tower body and enters the air outlet channel to be exhausted to the atmosphere, in the process, the pressure in the adsorption tower body is rapidly reduced, a one-way valve plate in the one-way valve component is rapidly closed, and back flushing regeneration gas reversely enters the tower body from the communication hole, so that the state of the back flushing regeneration gas is converted into a back flushing regeneration state; the states of the double towers are switched, and the states of the double towers are circularly switched under the control of a preset program of the control box, so that the adsorption type double-tower dryer can continuously work.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the drier has no dust product in the operation, solves the inherent defect of dust generation in the use of the drying bead drier in the prior art, and cannot become a secondary pollution source for air source treatment; the dryer adsorbing material can resist water saturation, cannot be degraded after being soaked in water for a long time, has extremely strong oil resistance, and can recover the performance of the adsorbing material through cleaning; the dryer can stably operate in severe environment and working condition, and the service life of the adsorption material packaging cylinder reaches more than 30000 operation hours under guaranteed maintenance; the performance of the dryer is not influenced by the installation mode, and the dryer can be horizontally or vertically installed; the performance of the dryer is not influenced by external factors such as vibration or impact;
2. under the assistance of fluid calculation and finite element simulation, a diffusion structure is designed, supporting spaces on two sides of an adsorption material packaging barrel are determined under the verification of a large amount of test data, the uniform and low-speed passing of compressed air through the adsorption material packaging barrel under the combined action of the diffusion structure and the supporting spaces is ensured, so that the adsorption material can fully adsorb moisture in the compressed air, and during back flushing regeneration, regenerated gas can uniformly sweep the adsorption material, thereby improving the regeneration efficiency and reducing the consumption of back flushing regeneration gas;
3. a small hole is drilled on the one-way valve plate and used as a flow channel of regeneration gas during back blowing regeneration of the drying tower, so that the back blowing regeneration gas is ensured to be blown out from the center and uniformly blown to the periphery of the tower body of the dryer under the action of a diffusion structure, and meanwhile, a regeneration gas flow channel and a flow control device are not required to be arranged on the gas outlet end cover independently, the flow channel design of the end cover is simplified, and parts are reduced to improve the reliability of the dryer;
4. ensuring that the output pressure of the dryer is not affected when the double-tower is switched, under the control of a preset program of a control box, when the regeneration of the back-blowing regeneration tower is finished and the pressure maintaining stage is entered, the upstream compressed air enters the back-blowing regeneration tower by opening the air inlet passage of the back-blowing regeneration tower control electromagnetic valve, so that the pressure of the back-blowing regeneration tower is rapidly increased to be consistent with the pressure in the adsorption tower in a short time, namely, at the end stage of the pressure maintaining stage, the one-way valves of the back-blowing regeneration tower and the adsorption tower are completely opened, and when the double-tower is switched, the original drying tower is changed into back-blowing regeneration by closing the air inlet passage of the original drying tower control electromagnetic valve and opening the exhaust passage of regenerated gas, so that the switching of the double-tower state is realized.
Drawings
Fig. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a rear sectional view of the embodiment of FIG. 1;
FIG. 3 is a schematic structural view of the one-way valve assembly of the embodiment of FIG. 1;
FIG. 4 is a schematic view of an air intake structure of the embodiment shown in FIG. 1;
fig. 5 is a schematic perspective view of an embodiment of the present invention;
in the figure: 100. a post-filter; 200. an adsorption type double-tower dryer; 300. a control box; 4. a pre-filter; 500. a support; 201. 201-1 parts of an air inlet end cover, 201-2 parts of an air inlet channel, 201-3 parts of an exhaust channel, 201-4 parts of an air outlet channel and 201-5 parts of a silencer; 202. a first diffusion structure; 203. a first support frame; 204. an adsorbent material packaging cartridge; 205. a protection device; 206. a second support frame; 207. an air outlet end cover; 208. 208-1 parts of a one-way valve assembly, 208-2 parts of a one-way valve cover plate, 208-3 parts of a one-way valve cover plate sealing ring, 208-4 parts of a one-way valve spring, 208-5 parts of a one-way valve plate, 208-6 parts of a communication hole; 209. O-ring; 210. an aluminum alloy cylinder; 211. a second diffusion structure; a. air inlet, b.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1 to 5, an apparatus for cleaning and drying compressed air includes a bracket 500, a pre-filter 400, a control box 300, an adsorption type double-tower dryer 200 and a post-filter 100, wherein the pre-filter 400 and the control box 300 are installed on the front side of the bracket 500, the adsorption type double-tower dryer 200 is installed on the rear side of the bracket 500, the pre-filter 400 and the adsorption type double-tower dryer are connected through a stainless steel hard pipe, and the post-filter 100 is installed at an air outlet of the adsorption type double-tower dryer 200;
the adsorption type double-tower dryer 200 is vertically installed and comprises an air inlet end cover 201, two aluminum alloy cylinders 210, an air outlet end cover 207 and a one-way valve assembly 208, wherein the air inlet end cover 201 is fixedly locked on a support 500, the two aluminum alloy cylinders 210 are respectively fastened between the air inlet end cover 201 and the air outlet end cover 207, a first diffusion structure 202, a first support frame 203, an adsorption material packaging cylinder 204, a protection device 205, a second support frame 206 and a second diffusion structure 211 are arranged in each aluminum alloy cylinder 210, the first diffusion structure 202 and the first support frame 203 are arranged on the air inlet end cover 201, the adsorption material packaging cylinder 204 is arranged on the first support frame 203, the protection device 205 is arranged on the adsorption material packaging cylinder 204, the second support frame 206 is arranged between the protection device 205 and the air outlet end cover 207, the second diffusion structure 211 is arranged on the end cover 207 to form an adsorption tower body or a back-blowing regeneration tower body, the two one-way valve assemblies 208 are respectively arranged in the air outlet end cover 207, each tower body is controlled by an independent one-way valve assembly, and a back-blowing regeneration flow channel of the gas is arranged in the center of the one-way valve assembly 208;
an air inlet channel 201-2, an air outlet channel 201-3 and an air outlet channel 201-4 are arranged in the air inlet end cover 201, two control electromagnetic valves 201-1 are arranged on the outer side of the air inlet end cover 201, one control electromagnetic valve is correspondingly arranged on each tower body, all the control electromagnetic valves 201-1 are connected with a control box 300, and the working states are switched under the control of a preset program of the control box 300.
In this embodiment, the adsorbing material packaging cylinder 204 is composed of a packaging end cover, an aluminum alloy cylinder body and a sheet adsorbing material, the sheet adsorbing material is made of aluminosilicate and has an open porous structure with high adsorption density, dust particles are not generated in the use of the sheet adsorbing material, and meanwhile, the sheet adsorbing material does not contain clay components, so that the sheet adsorbing material has the characteristic of water saturation resistance (water soaking is not degraded); the sheet-shaped adsorbing materials are of a strip-shaped multilayer winding structure in the aluminum alloy cylinder, each layer of gap is a channel for gas flow, when compressed air passes through the gap, friction is not generated between the sheet-shaped adsorbing materials, so that the sheet-shaped adsorbing materials have excellent mechanical properties and regeneration performance, and dust is not generated at the same time, the design can control the speed, contact time, turbulence, back pressure and adsorption density by adjusting the layer gap, so that the adsorption capacity is improved to the maximum, and the layer gap is preferably 1mm; and polymer gaskets for filtering treatment can be arranged at two ends in the aluminum alloy cylinder. The adsorption material packaging cylinder has the advantages of simple and convenient installation and replacement, and reduces the production and maintenance time of the dryer.
In this embodiment, the aluminum alloy cylinder 210 is connected with the air inlet end cover 201 and the air outlet end cover 207 through threaded holes on two sides by bolts, and an O-ring 209 is arranged between the aluminum alloy cylinder 210 and the air inlet end cover 201 and the air outlet end cover 207 for sealing.
In this embodiment, one side of the first diffusion structure 202 is a concave body for precision machining, four counter bores are arranged at the outer circumference of the first diffusion structure for installing the heads of four bolts for locking the first diffusion structure into the first diffusion structure to prevent the heads of the protruding fastening bolts from interfering with the flow of the compressed air in the cylinder, and the second diffusion structure 211 is identical to the first diffusion structure 202.
In this embodiment, the first support frame 203 and the second support frame 206 are both cylindrical structures.
In this embodiment, the protection device 205 is a plate with a spoke-shaped structure, four spokes are arranged between a solid hub and a rim, the solid hub presses the center of the adsorbing material packaging cylinder, and the rim is located between the adsorbing material packaging cylinder and the second support frame.
In this embodiment, the check valve assembly 208 includes a check valve cover plate 208-1, a guide sleeve 208-2, a check valve cover plate sealing ring 208-3, a check valve spring 208-4 and a check valve plate 208-5, the guide sleeve 208-2 is mounted on the check valve cover plate 208-1, the check valve spring 208-4 is sleeved on the outer side of the upper portion of the check valve plate 208-5, the upper end of the check valve plate 208-5 extends into the guide sleeve 208-2, the check valve cover plate 208-1 is mounted on the outlet end cover 207, the check valve cover plate sealing ring 208-3 is mounted between the check valve cover plate 208-1 and the outlet end cover 207, the lower end face of the check valve plate 208-5 is provided with vulcanized rubber, the center of the check valve plate 208-5 is provided with a communication hole 208-6 as a flow channel for back-blowing regeneration gas, so that a separate regeneration gas flow channel and a flow control device do not need to be arranged on the outlet end cover 207, the flow channel design of the end cover is simplified, and components are reduced to improve the reliability of the dryer.
In this embodiment, the control electromagnetic valve 201-1 is a normally open function electromagnetic valve that is reset by a two-position three-way spring, which can ensure that even if a coil of the electromagnetic valve or a control system fails, compressed air can still enter and exit the dryer tower body from the air inlet channel 201-2 through the electromagnetic valve and provide compressed air for downstream equipment. The exhaust channel 201-3 for back flushing regeneration gas adopts a large-diameter design to reduce the pressure in the regeneration tower body during back flushing regeneration of the dryer, improve the regeneration efficiency and reduce the consumption of back flushing regeneration gas, and meanwhile, the muffler 201-5 is arranged at the outlet of the exhaust channel 201-3 to reduce the noise during the operation of the device.
The method for cleaning and drying compressed air implemented with said device is:
the compressed air generated by the compressor enters the pre-filter 400 through the air inlet a for pre-treatment, and impurities such as liquid water, lubricating oil, particles, aerosol/hydrosol and the like contained in the compressed air are separated and filtered. The bottom of the pre-filter 400 is equipped with a drain solenoid valve, which is opened according to a time sequence set in the control box 300 to discharge the separated contaminants. The compressed air treated by the pre-filter 400 enters the adsorption type double-tower dryer 200, the adsorption type double-tower dryer 200 removes gaseous water contained in the compressed air, the gaseous water is discharged from the air outlet b to provide dried compressed air for downstream equipment, and the double-tower state is switched according to a timing sequence set in the control box 300. The post-filter 100 is arranged at the air outlet, and plays roles of redundancy and protection.
Specifically, the control box 300 controls the action of the control electromagnetic valve 201-1 of the adsorption tower body and the back-blowing regeneration tower body to determine the state of the dryer tower body, namely the tower body in the adsorption state, the air inlet channel 201-2 is communicated with the air outlet channel 201-4, so that the compressed air enters the tower body to be adsorbed and dried, the air outlet channel 201-3 is not communicated with the air outlet channel 201-4, and the compressed air can only flow to one side of the air outlet end cover 207; meanwhile, in the tower body in a back blowing regeneration state, the air inlet channel 201-2 is not communicated with the air outlet channel 201-4, so that compressed air cannot enter the tower body, and the air outlet channel 201-3 is communicated with the air outlet channel 201-4, so that back blowing regeneration gas can flow out of the tower body and enter a silencer 201-5 arranged at the outlet of the air outlet channel 201-3, and then is exhausted to the atmosphere from the silencer 201-5;
inside the adsorption tower body, the air inlet on the air inlet end cover 201 and the gas outlet on the end cover 207 of giving vent to anger all are located the central point of end cover boss and put, that is to say, be located the central point of aluminum alloy barrel 210, high pressure, high-speed compressed air flows out from the air inlet of air inlet end cover 201, under the effect of the first diffusion structure 202 of the inboard installation of air inlet end cover 201, evenly blow to around the aluminum alloy barrel 210, the first support frame 203 that sets up between the inboard of air inlet end cover 201 and the adsorption material packaging section of thick bamboo 204 simultaneously, establish a sufficient space and further reduce the velocity of flow of compressed air, ensure that compressed air is even, the low-speed passes adsorption material packaging section of thick bamboo 204, ensure that the adsorption material is with the abundant absorption of moisture in the compressed air. A protection device 205 is arranged at the rear end of the adsorption material packaging cylinder 204, and is fixed above the adsorption material packaging cylinder 204 by a second support frame 206 above the protection device 205, and the protection device 205 is attached to a boss at the center of the adsorption material packaging cylinder 204 to strengthen the support strength of the adsorption material packaging cylinder 204 and ensure the stable and safe operation of the adsorption material packaging cylinder 204 under high pressure. The dried compressed air passes through a check valve assembly 208 and exits the adsorption double tower dryer 200 through a flow passage in an outlet end cap 207.
Inside the blowback regeneration tower body, the regeneration gas that flows out from the adsorption tower body blows off from the aperture at one-way valve subassembly 208 center high speed, under the effect of the inboard second diffusion structure 211 of the end cover 207 of giving vent to anger, regeneration gas evenly blows around to aluminum alloy cylinder 210, the second support frame 206 that sets up between the inboard of the end cover 207 of giving vent to anger and the adsorption material packaging barrel 204 simultaneously, establish an enough space and further reduce regeneration gas's velocity of flow and pressure, because the blowback regeneration gas passageway of the end cover 201 of admitting air adopts the major diameter design, the inside pressure of blowback regeneration tower body is further reduced, ensure that regeneration gas sweeps the vapor that separates out in the adsorption material totally, improve regeneration efficiency, reduce the consumption of blowback regeneration gas.
When the double-tower state is about to be switched, under the control of a preset program of a control box, a tower body in a back-blowing regeneration state controls an electromagnetic valve to act, so that an air inlet channel 201-2 and an air outlet channel 201-4 of the tower body are communicated, compressed air can enter the tower body, an air outlet channel 201-3 and the air outlet channel 201-4 are not communicated, the compressed air can only flow to one side of an air outlet end cover 207, at the moment, an adsorption material packaging cylinder 204 in the tower body starts to adsorb moisture in the compressed air, namely, the compressed air is converted into an adsorption tower, the pressure of the tower body rapidly rises in a short time, when a check valve plate 208-5 in a check valve assembly 208 of the original back-blowing regeneration tower body is completely opened, the pressure in the original back-blowing regeneration tower body is consistent with the pressure in the adsorption tower body, and the process is called as a pressure maintaining stage of the back-blowing regeneration tower; under the control of a preset program of a control box, the tower body in an adsorption state controls the action of a solenoid valve, an air inlet channel 201-2 and an air outlet channel 201-4 are not communicated, so that compressed air can not enter the tower body any more, an air outlet channel 201-3 and the air outlet channel 201-4 are communicated, so that gas in the adsorption tower body rapidly flows out of the tower body and enters a silencer 201-5 arranged at an outlet of the air outlet channel 201-3, and then is exhausted to the atmosphere from the silencer 201-5, in the process, the pressure in the adsorption tower body is rapidly reduced, so that a check valve plate 208-5 in a check valve assembly 208 is rapidly closed, and back blowing regeneration gas reversely enters the tower body from a communication hole 208-6, so that the state of the back blowing regeneration gas is converted into a back blowing regeneration state; the states of the double towers are switched, and the states of the double towers are circularly switched under the control of a preset program of the control box, so that the adsorption double-tower dryer 200 can continuously work.
Claims (9)
1. The utility model provides a device of clean and dry compressed air, includes support, leading filter, control box and absorption formula two tower driers, its characterized in that: the pre-filter and the control box are arranged on the front side of the bracket, the adsorption type double-tower dryer is arranged on the rear side of the bracket, and the pre-filter and the adsorption type double-tower dryer are connected through a pipeline;
the adsorption type double-tower dryer comprises an air inlet end cover, two aluminum alloy cylinders, an air outlet end cover and a one-way valve assembly, wherein the air inlet end cover is arranged on a support, the two aluminum alloy cylinders are respectively arranged between the air inlet end cover and the air outlet end cover, a first diffusion structure, a first support frame, an adsorption material packaging cylinder, a protection device, a second support frame and a second diffusion structure are arranged in each aluminum alloy cylinder, the adsorption material packaging cylinder consists of the packaging end cover, the aluminum alloy cylinders and a sheet adsorption material, the sheet adsorption material is of a strip-shaped multilayer winding structure in the aluminum alloy cylinder, each layer of gap is a gas flow channel, the first diffusion structure and the first support frame are arranged on the air inlet end cover, the adsorption material packaging cylinder is arranged on the first support frame, the protection device is arranged on the adsorption material packaging cylinder, the second support frame is arranged between the protection device and the air outlet end cover, the second diffusion structure is arranged on the air outlet end cover to form an adsorption tower body or a back-blowing regeneration tower body, the two one-way valve assemblies are respectively arranged in the tower body, each one-way valve assembly is controlled, and a back-way gas regeneration flow channel is arranged on the air regeneration tower body;
be equipped with inlet channel, exhaust passage, air outlet channel in the inlet end cover, the outside of inlet end cover is equipped with two control solenoid valve, and every tower body corresponds and sets up one, and all control solenoid valve are connected with the control box, carry out operating condition's switching.
2. The apparatus for cleaning and drying compressed air according to claim 1, wherein: the aluminum alloy cylinder body is connected with the air inlet end cover and the air outlet end cover through threaded holes in two sides through bolts, and O-shaped rings are arranged between the aluminum alloy cylinder body and the air inlet end cover and between the aluminum alloy cylinder body and the air outlet end cover for sealing.
3. Device for cleaning and drying compressed air according to claim 1 or 2, characterized in that: one side of the first diffusion structure is a precise machining concave surface body, four counter bores are arranged at the outer circumference of the first diffusion structure and used for installing the heads of four bolts for locking the first diffusion structure into the first diffusion structure, and the second diffusion structure is identical to the first diffusion structure.
4. Device for cleaning and drying compressed air according to claim 1 or 2, characterized in that: the first support frame and the second support frame are both of cylindrical structures.
5. Device for cleaning and drying compressed air according to claim 1 or 2, characterized in that: the protective device is a plate with a spoke-shaped structure, four spokes are arranged between a solid hub and a rim, the solid hub presses the center of the adsorption material packaging barrel, and the rim is positioned between the adsorption material packaging barrel and the second support frame.
6. Device for cleaning and drying compressed air according to claim 1 or 2, characterized in that: the check valve component comprises a check valve cover plate, a guide sleeve, a check valve cover plate sealing ring, a check valve spring and a check valve plate, wherein the guide sleeve is installed on the check valve cover plate, the check valve spring is sleeved on the outer side of the upper portion of the check valve plate, the upper end of the check valve plate extends into the guide sleeve, the check valve cover plate is installed on the air outlet end cover, the check valve cover plate sealing ring is installed between the check valve cover plate and the air outlet end cover, vulcanized rubber is arranged on the lower end face of the check valve plate, and a communication hole is formed in the check valve plate and serves as a flow channel for back-blowing regeneration gas.
7. Device for cleaning and drying compressed air according to claim 1 or 2, characterized in that: the control electromagnetic valve is a normally open functional electromagnetic valve reset by a two-position three-way spring.
8. Device for cleaning and drying compressed air according to claim 1 or 2, characterized in that: and a silencer is arranged at the outlet of the exhaust channel.
9. Device for cleaning and drying compressed air according to claim 1 or 2, characterized in that: the adsorption type double-tower dryer is characterized by further comprising a rear filter, wherein the rear filter is arranged at an air outlet of the adsorption type double-tower dryer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222263712.5U CN218166503U (en) | 2022-08-27 | 2022-08-27 | Device for cleaning and drying compressed air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222263712.5U CN218166503U (en) | 2022-08-27 | 2022-08-27 | Device for cleaning and drying compressed air |
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| Publication Number | Publication Date |
|---|---|
| CN218166503U true CN218166503U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222263712.5U Active CN218166503U (en) | 2022-08-27 | 2022-08-27 | Device for cleaning and drying compressed air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218166503U (en) |
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2022
- 2022-08-27 CN CN202222263712.5U patent/CN218166503U/en active Active
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