Quick-change drying cylinder

Abstract

The utility model provides a quick-change drying cylinder, and belongs to the technical field of gas processing. The abutting end cover and the air outlet end cover with the air outlet are detachably installed at the two ends of the outer cylinder respectively, the drying inner core is arranged in the outer cylinder, the air outlet connector of the drying inner core is inserted into the air outlet in the air outlet end cover, and the air inlet communicated with an inner cavity of the outer cylinder is formed in the end, close to the abutting end cover, of the side wall of the outer cylinder. According to the drying device, side face air inlet is achieved, the drying device is communicated with an external pipeline through the air outlet and the air inlet, meanwhile, the drying inner core is stably limited in the outer cylinder through the air outlet end cover and the abutting end cover, air entering from the air inlet is dried by the drying inner core and then exhausted from the air outlet, and only the abutting end cover needs to be disassembled and assembled when the drying inner core is replaced subsequently; the problem of repeated disassembly and assembly of the air inlet and the air outlet with an external pipeline is avoided, the replacement process is simple and easy to operate, the efficiency is higher, the problem that the service life is influenced by repeated disassembly and assembly of a pipeline joint is effectively avoided, and the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gas processing, in particular to a quick-change drying cylinder. Background Art

[0002] In the process of gas preparation, in order to obtain higher quality gas, the dew point is usually lowered, that is, the gas is dried through a drying device to reduce the water vapor content in the gas.

[0003] At present, the drying device used for gas drying on the market is usually a drying cylinder, that is, an adsorbent is arranged in the drying cylinder, and the air inlet and air outlet of the drying cylinder are arranged on the end cover of the drying cylinder, such as the patent CN108434932A discloses an inside-out type compressed air drying filter cylinder, in which a second cylinder is arranged in the first cylinder, an air inlet channel is arranged at the bottom of the second cylinder, and the barrel of the second cylinder is filled with adsorbent. At this time, there is a gap between the first cylinder and the second cylinder and an air outlet channel is formed. At the same time, an air inlet channel is formed by an annular base and an annular sealing gasket below the second cylinder, and a second cylinder bottom cover is detachably arranged at the bottom of the second cylinder, and the air inlet channel is connected to the second cylinder through the second cylinder bottom cover, and an air inlet hole is opened on the annular base, and the air outlet channel is connected to the air outlet hole, that is, the annular base is used as both an air inlet and an air outlet, and at the same time, it is installed on the equipment through the annular base. Although the above-mentioned drying cylinder structure can meet the demand for gas drying, since the annular base with the air inlet and the air outlet is used to seal the first cylinder and connect it to the external equipment, when it is necessary to replace the adsorbent in the cylinder, it is necessary to first remove the drying cylinder as a whole from the equipment and remove the corresponding pipeline connection. At the same time, the annular base is removed and the second cylinder is taken out to replace the adsorbent in the second cylinder. After the replacement is completed, the drying cylinder is restored by the reverse operation. The operation process is cumbersome and the equipment is repeatedly disassembled and assembled, which causes damage to the pipeline connection, resulting in inconvenience in use. Utility Model Content

[0004] The vent cap is detachably mounted on one end of the air intake pipe, and the vent cap is detachably mounted on the other end of the air intake pipe.

[0005] The specific technical solutions are as follows:

[0006] A quick-change drying cylinder comprises an outer cylinder and a drying inner core, wherein the drying inner core is arranged in the inner cavity of the outer cylinder and has the following characteristics: an outlet end cover and a tight end cover for closing the inner cavity are detachably installed at both ends of the outer cylinder, an air outlet end cover is provided with an air outlet, an air inlet connected to the inner cavity of the outer cylinder is provided on the side wall of the outer cylinder and at one end close to the tight end cover, and the air inlet and the air outlet are respectively connected to external pipelines, and at the same time, the air outlet joint of the drying inner core is plug-connected with the air outlet on the air outlet end cover, and the air inlet end of the drying inner core is abutted against the tight end cover and connected with the air inlet.

[0007] The above-mentioned quick-change drying cylinder, wherein the air outlet end cover includes a bottom outer cover and a bottom sealing cover, and the abutting end cover includes a top outer cover and a top sealing cover, the bottom outer cover and the top outer cover are respectively installed at the two ends of the outer cylinder, the bottom sealing cover and the top sealing cover are both located in the outer cylinder and are both sealed with the inner wall of the inner cavity, the bottom sealing cover and the top sealing cover are respectively abutted against the two ends of the drying inner core, and at the same time, the side of the bottom sealing cover facing away from the drying inner core abuts against the bottom outer cover, and the end of the top sealing cover facing away from the drying inner core abuts against the top outer cover.

[0008] In the above-mentioned quick-change drying cylinder, the bottom outer cover is threadedly connected to the outer cylinder, and the top outer cover is threadedly connected to the outer cylinder.

[0009] In the above-mentioned quick-change drying cylinder, a protruding annular top plate is arranged on one side of the top sealing cover close to the drying inner core, the annular top plate abuts against the end of the drying inner core, a plurality of ventilation holes penetrating the inner and outer walls are opened on the side wall of the annular top plate, and each ventilation hole is connected to the air inlet.

[0010] The above-mentioned quick-change drying cylinder, wherein a through opening is provided on the bottom outer cover, and at the same time, a connecting column extending into the through opening is provided on the side of the bottom sealing cover close to the bottom outer cover, and an exhaust passage which penetrates the connecting column and the bottom sealing cover at the same time is provided on the connecting column, and one end of the exhaust passage extends out of the through opening to form an air outlet.

[0011] In the above-mentioned quick-change drying cylinder, a plurality of disassembly holes are provided on the bottom outer cover and the top outer cover on opposite sides.

[0012] In the above-mentioned quick-change drying cylinder, a fixing hole is provided on the top outer cover, a connecting hole corresponding to the fixing hole is provided on the top sealing cover, and a locking bolt passes through the fixing hole and is threadedly connected to the connecting hole.

[0013] The above-mentioned quick-change drying cylinder, wherein the drying inner core includes an inner cylinder, a sealing cover, a molecular sieve, a first filter net, a second filter net and foam cotton, the inner cylinder is arranged in a barrel shape, an air outlet joint is installed on the barrel bottom of the inner cylinder, a sealing cover is provided at the barrel mouth end of the inner cylinder, a penetrating air inlet channel is provided on the sealing cover, and the first filter net, molecular sieve, foam cotton and second filter net are arranged in sequence in the inner cylinder and between the sealing cover and the barrel bottom, and at the same time along the direction from the sealing cover to the air outlet joint.

[0014] The above-mentioned quick-change drying cylinder, wherein the sealing cover includes a bottom cover and a base, the base is arranged in a ring shape, one end of the base is sleeved in the barrel mouth of the inner cylinder and connected to the inner cylinder rivet, the air inlet channel is opened on the bottom cover, and the bottom cover is clamped on the outside of the end of the base away from the connection with the inner cylinder.

[0015] In the above-mentioned quick-change drying cylinder, the inner cylinder, the base and the bottom cover are all made of aluminum, and a handle is provided on the side of the bottom cover facing away from the base.

[0016] The positive effects of the above technical solution are:

[0017] The above-mentioned quick-change drying cylinder has an outlet end cover and a tightening end cover with air outlets detachably installed at both ends of the outer cylinder, and an air inlet connected to the inner cavity of the outer cylinder is arranged on the side wall of the outer cylinder and at one end close to the tightening end cover. The drying inner core is arranged in the inner cavity and an outlet connector at one end thereof is plug-connected with the air outlet, and the other end thereof is tightened by the tightening end cover, and then connected with the external pipeline through the air inlet and the air outlet on the air outlet end cover. The gas to be dried can be drawn in from the side of the outer cylinder and then enter the drying inner core for drying, and then be discharged through the air outlet connector and the air outlet, thereby meeting the gas drying demand. At the same time, when the drying inner core needs to be replaced later, it only needs to remove the tightening end cover to pull out the drying inner core, without removing the connecting parts of the air inlet and the air outlet with the external pipeline. The operation steps are simple, which avoids the problem of repeated disassembly and assembly of external pipelines, prolongs the service life, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of an embodiment of a quick-change drying cylinder of the utility model;

[0019] Figure 2 This is a structural diagram of an outer barrel, an air outlet end cover and abutting end cover of a preferred embodiment of the utility model;

[0020] Figure 3 This is a structural diagram of a drying inner core according to a preferred embodiment of the utility model.

[0021] In the accompanying drawings: 1. outer cylinder; 11. inner cavity; 12. air inlet; 2. drying inner core; 21. air outlet joint; 22. inner cylinder; 23. sealing cover; 24. molecular sieve; 25. first filter net; 26. second filter net; 27. foam cotton; 231. bottom cover; 232. base; 233. handle; 3. air outlet end cover; 31. bottom outer cover; 32. bottom sealing cover; 311. through port; 312. disassembly hole; 321. connecting column; 322. exhaust channel; 3221. air outlet; 4. tight end cover; 41. top outer cover; 42. top sealing cover; 411. fixing hole; 421. annular top plate; 422. air vent; 423. connecting hole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following embodiments are combined with the attached Figure 1 To Attachment Figure 3 The technical solution provided by the utility model is described in detail, but the following content is not intended to limit the utility model.

[0023] Figure 1 This is a structural diagram of an embodiment of a quick-change drying cylinder of the utility model; Figure 2 This is a structural diagram of the outer barrel, the outlet end cover and the abutting end cover of a preferred embodiment of the utility model. Figure 1 and Figure 2 As shown, the quick-change drying cylinder provided in this embodiment includes: an outer cylinder 1 and a drying inner core 2, and the drying inner core 2 is arranged in the inner cavity 11 of the outer cylinder 1, and the drying inner core 2 is supported and protected by the outer cylinder 1.

[0024] Specifically, the two ends of the outer tube 1 are detachably mounted with an outlet end cap 3 and a close end cap 4 for sealing the inner cavity 11. The two ends of the outer tube 1 are sealed by the outlet end cap 3 and the close end cap 4. At the same time, the outlet end cap 3 and the close end cap 4 can also be disassembled and assembled on the outer tube 1, which provides conditions for the subsequent rapid removal and replacement of the drying inner core 2. At this time, an outlet port 3221 is provided on the outlet end cap 3. At the same time, an air inlet 12 connected to the inner cavity 11 of the outer tube 1 is provided on the side wall of the outer tube 1 and located at one end close to the close end cap 4, so that the outlet port 3221 and the air inlet 12 can be connected to the inner cavity 11 of the outer tube 1. At the same time, the air inlet 12 is located on the side wall of the outer tube 1 to realize side air intake, so that the entire end surface of one end of the drying inner core 2 can realize air intake, which increases the air intake area, so that the gas to be dried can be more fully in contact with the substance in the drying inner core 2, and the adsorption effect is improved. In addition, the air inlet 12 and the air outlet 3221 are connected to the external pipeline respectively, that is, the quick-change drying cylinder disclosed in this embodiment is installed in the external pipeline through the air inlet 12 and the air outlet 3221 to meet the drying demand for the gas in the pipeline. At the same time, the outlet connector 21 of the drying inner core 2 is plugged and connected with the air outlet 3221 on the outlet end cover 3, that is, the plug-in cooperation between the drying inner core 2 and the outlet end cover 3 is realized, and the disassembly and assembly are more convenient. In addition, the air inlet end of the drying inner core 2 is abutted against the abutting end cover 4, that is, the drying inner core 2 is pressed into the inner cavity 11 of the outer cylinder 1 by the abutting end cover 4, which improves the stability of the installation of the drying inner core 2 in the outer cylinder 1, ensures the drying effect, and prolongs the service life. In addition, the end of the drying inner core 2 abutted by the abutting end cover 4 is connected to the air inlet 12, so that the gas entering the inner cavity 11 of the outer cylinder 1 from the air inlet 12 can enter the drying inner core 2 to meet the gas drying demand. It is worth pointing out that when the drying core 2 needs to be replaced after being used for a period of time, the operator only needs to open the tight end cover 4, pull out the drying core 2 along the axial direction of the outer cylinder 1, and insert the new drying core 2 into the outer cylinder 1 along the axial direction of the outer cylinder 1, and then close the tight end cover 4 again. That is, to replace the drying core 2, it is only necessary to operate the tight end cover 4. The steps are simple and the operation is convenient. At the same time, it also avoids the problem of repeated disassembly and assembly between the air inlet 12 and the air outlet 3221 and the external pipeline, avoids the problem of structural damage caused by repeated disassembly and assembly, extends the service life, and is more convenient to use.

[0025] More specifically, the outlet end cover 3 arranged at one end of the outer cylinder 1 includes a bottom outer cover 31 and a bottom sealing cover 32. Similarly, the abutting end cover 4 includes a top outer cover 41 and a top sealing cover 42. At this time, the bottom outer cover 31 and the top outer cover 41 are respectively installed at the two ends of the outer cylinder 1, and a limiting abutting structure is formed at the two ends of the outer cylinder 1 through the bottom outer cover 31 and the top outer cover 41, which provides conditions for the subsequent stable restriction of the drying inner cylinder 22 in the outer cylinder 1. In addition, the bottom sealing cover 32 and the top sealing cover 42 are both arranged in the outer cylinder 1 and are both sealed with the inner wall of the inner cavity 11. Preferably, the outer side of the bottom sealing cover 32 and the top sealing cover 42 is provided with a sealing ring, and the side walls of the bottom sealing cover 32 and the top sealing cover 42 are sealed with the inner wall of the outer cylinder 1 through the sealing ring, so that the top sealing cover 42 and the bottom sealing cover 32 and the outer cylinder 1 can form a relatively sealed space, so that the subsequent drying inner core 2 can be in a relatively sealed space to prevent gas leakage during the drying process. In addition, the bottom sealing cover 32 and the top sealing cover 42 are respectively pressed against the two ends of the drying inner core 2. At the same time, the side of the bottom sealing cover 32 facing away from the drying inner core 2 is pressed against the bottom outer cover 31, and the end of the top sealing cover 42 facing away from the drying inner core 2 is pressed against the top outer cover 41, that is, one end of the drying inner core 2 is pressed tightly by the bottom sealing cover 32 and the bottom outer cover 31, and the other end is pressed tightly by the top sealing cover 42 and the top outer cover 41, so as to realize the stable installation of the drying inner core 2 in the outer cylinder 1.

[0026] More specifically, the bottom outer cover 31 is threadedly connected to the outer cylinder 1, and similarly, the top outer cover 41 is threadedly connected to the outer cylinder 1, which facilitates the disassembly and assembly of the bottom outer cover 31 and the top outer cover 41 on the outer cylinder 1, and provides conditions for quickly opening the tight end cover 4 when the drying inner cylinder 22 is replaced later.

[0027] More specifically, a protruding annular top plate 421 is provided on one side of the top sealing cover 42 close to the drying inner core 2. Preferably, the annular top plate 421 and the top sealing cover 42 are an integrated structure, which has a higher structural strength and is more convenient to disassemble and assemble. At this time, the annular top plate 421 is pressed against the end of the drying inner core 2, so that the top sealing cover 42 can press the end of the drying inner core 2 tightly through the annular top plate 421. The annular top plate 421 reduces the shielding of the top sealing cover 42 on the end area of ​​the drying inner core 2, ensuring that the drying inner core 2 can maintain a larger air intake area, and the air intake effect is better. In addition, a plurality of air vents 422 penetrating the inner and outer walls are provided on the side wall of the annular top plate 421. At this time, the inner space of the annular baffle can be connected with the air inlet 12 through each air vent 422, so that when the annular baffle abuts against the end of the drying inner core 2, the gas entering the inner cavity 11 of the outer tube 1 from the air inlet 12 can enter the inner space of the annular baffle through each air vent 422, and then enter the drying inner core 2, and is dried by the drying inner core 2 to meet the drying requirements for the gas.

[0028] More specifically, a through opening 311 is provided on the bottom outer cover 31. Preferably, the through opening 311 is located at the center of the bottom outer cover 31, so that when the bottom outer cover 31 is installed on the outer cylinder 1, the through opening 311 can be arranged coaxially with the outer cylinder 1, which provides convenience for the subsequent plug-in connection between the outlet connector 21 of the drying inner core 2 and the outlet 3221 on the outlet end cover 3. At the same time, a connecting column 321 extending into the through opening 311 is provided on the side of the bottom sealing cover 32 close to the bottom outer cover 31. Preferably, the connecting column 321 and the bottom sealing cover 32 are an integrated structure, which improves the structural stability and has a higher structural strength, and also facilitates the coordinated installation of the bottom sealing cover 32 and the bottom outer cover 31. In addition, an exhaust passage 322 is provided on the connecting column 321, which penetrates both the connecting column 321 and the bottom sealing cover 32, that is, the inner cavity 11 of the outer tube 1 is connected to the outside through the exhaust passage 322, so that the gas discharged from the subsequent drying inner core 2 can be connected to the external pipeline through the exhaust passage 322, thereby realizing the output of the dried gas. At this time, one end of the exhaust passage 322 is set to extend out of the through port 311 and form an exhaust port 3221, so that the exhaust port 3221 is connected to the inner cavity 11 of the outer tube 1, so that when the exhaust port 21 of the drying inner core 2 installed in the outer tube 1 is inserted into the exhaust port 3221, the exhaust port 21 is actually plugged and connected to the exhaust passage 322, providing a plug-in matching structure for the exhaust port 21, and also facilitating the connection with the external pipeline, and the structural design is more reasonable.

[0029] More specifically, a plurality of disassembly holes 312 are provided on the bottom outer cover 31 and the top outer cover 41 and are located on the opposite sides of the two. The disassembly holes 312 are light holes. Preferably, the plurality of disassembly holes 312 on the bottom outer cover 31 are arranged in a triangle. Similarly, the plurality of disassembly holes 312 on the top outer cover 41 are also distributed in a triangle, so that when the abutting end cover 4 needs to be opened and closed later, the top outer cover 41 needs to be twisted to rotate on the outer cylinder 1. At this time, the operator can use a three-claw tool to operate, insert the three claws of the three-claw tool into the corresponding three disassembly holes 312, and pry the handle to drive the top outer cover 41 to rotate, which facilitates the disassembly and assembly of the abutting end cover 4. It is worth pointing out that the three-claw tool can be a structure including a handle and three claws. At this time, one end of the handle has three claws extending in a triangle, which is more convenient to use.

[0030] More specifically, a fixing hole 411 is also provided on the top outer cover 41. Preferably, the fixing hole 411 is a countersunk hole. At the same time, a connecting hole 423 corresponding to the fixing hole 411 is provided on the top sealing cover 42, so that when the top sealing cover 42 and the top outer cover 41 are sequentially installed in the outer cylinder 1, the locking bolt can be passed through the fixing hole 411 and then threadedly connected with the connecting hole 423, so that the top sealing cover 42 and the top outer cover 41 form an integral structure, which facilitates the disassembly and assembly of the abutting end cover 4. In addition, it is worth pointing out that when disassembling and assembling the abutting end cover 4, the top sealing cover 42 and the top outer cover 41 can also be connected to form an integral structure by the locking bolt first, and then the formed integral structure can be installed in the outer cylinder 1, which can also meet the disassembly and assembly requirements, facilitate the disassembly and assembly of the abutting end cover 4 on the outer cylinder 1, and meet the quick replacement requirements.

[0031] Figure 3 This is a structural diagram of a drying inner core of a preferred embodiment of the utility model. Figure 1 and Figure 3As shown, the drying inner core 2 arranged in the inner cavity 11 of the outer cylinder 1 further includes an inner cylinder 22, a cover 23, a molecular sieve 24, a first filter net 25, a second filter net 26 and a foam 27. At this time, the inner cylinder 22 is arranged in a barrel shape, so that one end of the inner cylinder 22 is sealed, and at the same time, a gas outlet joint 21 is installed on the barrel bottom of the inner cylinder 22, so that the gas entering the inner cylinder 22 can be discharged through the gas outlet joint 21. In addition, a cover 23 is provided at the barrel mouth end of the inner cylinder 22, and the other end of the inner cylinder 22 is also sealed by the cover 23, so that both ends of the inner cylinder 22 have a limiting structure, which provides conditions for the subsequent molecular sieve 24, the first filter net 25, the second filter net 26 and the foam 27 to be stably installed in the inner cylinder 22. In addition, a penetrating air inlet channel is provided on the cover 23, so that the gas entering the inner cavity 11 of the outer cylinder 1 can enter the inner cylinder 22 through the air inlet channel to meet the gas flow requirements. In addition, a molecular sieve 24, a first filter net 25, a second filter net 26 and a foam 27 are arranged in the inner cylinder 22 and between the cover 23 and the bottom of the barrel. At this time, along the direction from the cover 23 to the gas outlet joint 21, the first filter net 25, the molecular sieve 24, the foam 27 and the second filter net 26 are arranged in sequence, that is, after the gas enters the inner cylinder 22 from the air inlet channel on the cover 23, it needs to pass through the first filter net 25, the molecular sieve 24, the foam 27 and the second filter net 26 in sequence to achieve the drying of the gas. In addition, a first filter net 25 is provided at the inlet end of the molecular sieve 24, which can filter the incoming gas and prevent the molecular sieve 24 from leaking from the inlet side of the gas. At the same time, a foam 27 and a second filter net 26 are provided at the outlet end of the molecular sieve 24, which can prevent the molecular sieve 24 itself from leaking from the outlet side of the gas and prevent the excess substances generated by the molecular sieve 24 during the filtration process from being discharged from the gas outlet connector 21 to the external pipeline, thereby ensuring the quality of the dried gas and protecting the pipeline system. Preferably, the first filter net 25 and the second filter net 26 can be filter nets with different filtration apertures, and the filtration aperture of the first filter net 25 is larger than the filtration aperture of the second filter net 26, so that graded filtration can be achieved. In addition, the foam 27 can be selected from soft polyurethane foam 27, which has better filtration efficiency and higher efficiency.

[0032] More specifically, the sealing cover 23 arranged at the barrel mouth of the inner cylinder 22 includes a bottom cover 231 and a base 232. At this time, the base 232 is arranged in a ring shape. At the same time, one end of the base 232 is sleeved into the barrel mouth of the inner cylinder 22 and connected to the inner cylinder 22 with rivets. A stable supporting structure is formed at the barrel mouth of the inner cylinder 22 through the base 232, so that the structural strength of the barrel mouth of the inner cylinder 22 is higher, which provides conditions for the subsequent stable installation of the bottom cover 231 and the stable cooperation with the tight end cover 4. At this time, the air intake channel is opened on the bottom cover 231, and when the bottom cover 231 is installed on the inner cylinder 22, the bottom cover 231 is clamped on the end of the base 232 away from the connection with the inner cylinder 22, that is, the bottom cover 231 is installed on the barrel end of the inner cylinder 22 through the base 232, and the first filter screen, the molecular sieve 24, the foam cotton 27 and the second filter screen are restricted in the inner cylinder 22 through the bottom cover 231 and the base 232. At the same time, the gas entering from the air inlet 12 can enter the inner cylinder 22 through the air intake channel on the bottom cover 231, and be dried by the molecular sieve 24 in the inner cylinder 22. It is worth pointing out that the inner space of the base 232 is arranged in a trumpet shape. At the same time, a card edge is provided on the side of the bottom cover 231 close to the base 232. The card edge is arranged in a conical shape, so that when the bottom cover 231 is installed on the base 232, it can be achieved by snapping the card edge into the inner space of the base 232. The trumpet-shaped inner space and the inclined surface of the conical card edge cooperate with each other to achieve mutual limitation, thereby realizing the card-connected installation of the bottom cover 231 on the base 232.

[0033] More specifically, the inner cylinder 22, the base 232 and the bottom cover 231 of the drying core 2 are all made of aluminum, which not only ensures the structural strength but also reduces the overall weight of the drying core 2, making the drying core 2 lighter and easier to replace and carry.

[0034] More specifically, a handle 233 is provided on the side of the bottom cover 231 of the cover 23 away from the base 232 , so that the user can take the drying core 2 by the handle 233 , which further facilitates the replacement and carrying of the drying core 2 .

[0035] The quick-change drying cylinder provided in this embodiment comprises an outer cylinder 1, a drying inner core 2, an air outlet end cover 3 and a close end cover 4. The close end cover 4 and the air outlet end cover 3 with an air outlet 3221 are detachably mounted on both ends of the outer cylinder 1, and the drying inner core 2 is arranged in the outer cylinder 1, and the air outlet connector 21 of the drying inner core 2 is plugged into the air outlet 3221 on the air outlet end cover 3. An air inlet 12 connected to the inner cavity 11 of the outer cylinder 1 is provided on the side wall of the outer cylinder 1 and at one end close to the close end cover 4, so that air can be inhaled from the side and discharged through the air outlet 3221. It is connected with the air inlet 12 and the external pipeline. At the same time, the drying inner core 2 is stably restricted in the outer tube 1 through the air outlet end cover 3 and the tight end cover 4, so that the gas entering from the air inlet 12 is dried by the drying inner core 2 and then discharged from the air outlet 3221, and when the drying inner core 2 is replaced later, it is only necessary to disassemble and assemble the tight end cover 4, thereby avoiding the problem of repeated disassembly and assembly of the air inlet 12 and the air outlet 3221 with the external pipeline. The replacement process is simple and easy to operate, with higher efficiency, effectively avoiding the problem of repeated disassembly and assembly of pipe joints affecting the service life, and is more convenient to use.

[0036] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-change drying cylinder, comprising an outer cylinder and a drying inner core, wherein the drying inner core is arranged in the inner cavity of the outer cylinder, characterized in that: An outlet end cap and a butt end cap for closing the inner cavity are detachably mounted at both ends of the outer cylinder, and an outlet port is arranged on the outlet end cap. An air inlet connected to the inner cavity of the outer cylinder is arranged on the side wall of the outer cylinder and at one end close to the butt end cap, and the air inlet and the air outlet are respectively connected to external pipelines. At the same time, the outlet joint of the drying inner core is plug-connected with the outlet port on the outlet end cap, and the air inlet end of the drying inner core is butted against the butt end cap and connected with the air inlet.

2. The quick-change drying cylinder according to claim 1, characterized in that: The air outlet end cover includes a bottom outer cover and a bottom sealing cover, and the abutting end cover includes a top outer cover and a top sealing cover, the bottom outer cover and the top outer cover are respectively installed at the two ends of the outer cylinder, the bottom sealing cover and the top sealing cover are both located in the outer cylinder and are both sealed with the inner wall of the inner cavity, the bottom sealing cover and the top sealing cover are respectively abutted against the two ends of the drying inner core, and at the same time, the side of the bottom sealing cover facing away from the drying inner core abuts against the bottom outer cover, and the end of the top sealing cover facing away from the drying inner core abuts against the top outer cover.

3. The quick-change drying cylinder according to claim 2, characterized in that: The bottom outer cover is threadedly connected to the outer cylinder, and the top outer cover is threadedly connected to the outer cylinder.

4. The quick-change drying cylinder according to claim 2, characterized in that: A protruding annular top plate is arranged on one side of the top sealing cover close to the drying inner core, the annular top plate abuts against the end of the drying inner core, a plurality of air vents penetrating the inner and outer walls are arranged on the side wall of the annular top plate, and each of the air vents is connected to the air inlet.

5. The quick-change drying cylinder according to claim 2, characterized in that: The bottom outer cover is provided with a through opening, and a connecting column extending into the through opening is provided on a side of the bottom sealing cover close to the bottom outer cover, and an exhaust passage penetrating through the connecting column and the bottom sealing cover is provided on the connecting column, and one end of the exhaust passage extends out of the through opening to form the air outlet.

6. The quick-change drying cylinder according to claim 2, characterized in that: A plurality of disassembly holes are provided on the bottom outer cover and the top outer cover and on opposite sides thereof.

7. The quick-change drying cylinder according to claim 2, characterized in that: The top outer cover is provided with a fixing hole, the top sealing cover is provided with a connecting hole corresponding to the fixing hole, and the locking bolt passes through the fixing hole and is threadedly connected with the connecting hole.

8. The quick-change drying cylinder according to claim 1, characterized in that: The drying inner core comprises an inner cylinder, a sealing cover, a molecular sieve, a first filter net, a second filter net and foam cotton. The inner cylinder is arranged in a barrel shape, the air outlet joint is installed on the barrel bottom of the inner cylinder, the sealing cover is provided at the barrel mouth end of the inner cylinder, and the sealing cover is provided with a penetrating air inlet channel. In addition, the first filter net, the molecular sieve, the foam cotton and the second filter net are arranged in sequence in the inner cylinder and between the sealing cover and the barrel bottom.

9. The quick-change drying cylinder according to claim 8, characterized in that: The sealing cover includes a bottom cover and a base, the base is arranged in a ring shape, one end of the base is sleeved in the barrel mouth of the inner tube and connected to the inner tube rivet, the air inlet channel is opened on the bottom cover, and the bottom cover is clamped on the outside of the end of the base away from the end connected to the inner tube.

10. The quick-change drying cylinder according to claim 9, characterized in that: The inner cylinder, the base and the bottom cover are all made of aluminum, and a handle is provided on a side of the bottom cover away from the base.

Images