Double-tower alternating gas-consumption-free adsorption type drying machine

Abstract

The utility model discloses a double tower alternation no air consumption adsorption style dryer, including filter structure and dryer main part, filter structure includes first t-branch pipe, second t-branch pipe and connecting plate, the main pipe orifice of first t-branch pipe is connected with the air outlet of dryer main part through flange, and the main pipe orifice of second t-branch pipe is connected with the air outlet of dryer main part through flange. Two branch pipe openings of the first three-way pipe and two branch pipe openings of the second three-way pipe are oppositely arranged in pairs, the connecting plate is fixedly installed between the two three-way pipes, a first electromagnetic valve and a second electromagnetic valve are installed on the two branch pipes of the first three-way pipe respectively, and a third electromagnetic valve and a fourth electromagnetic valve are installed on the two branch pipes of the second three-way pipe respectively. Two branch pipe openings of the second three-way pipe are connected with corrugated pipes through flanges, and filter cartridges are mounted between the two branch pipe openings of the first three-way pipe and the two corrugated pipes respectively; due to the fact that the filtering structure is arranged at the air outlet of the drying machine body, dried compressed air can be filtered, and powder in the air can be removed.

Description

Technical Field

[0001] The utility model relates to the technical field of adsorption dryers, in particular to a double-tower alternating air-loss-free adsorption dryer. Background Art

[0002] An adsorption dryer is a device that uses the moisture-absorbing properties of adsorbents (activated alumina, silica gel, molecular sieves) to reduce the moisture content in compressed air. Traditional adsorption dryers are mostly single-barrel type. However, since this single-barrel type dryer requires regeneration of the adsorbent inside after a period of operation, it cannot operate continuously. Therefore, a double-tower alternating dryer has been gradually developed. However, when the existing double-tower alternating adsorption dryer is in operation, the adsorbent is subjected to pressure changes due to the pressure swing adsorption principle, and powder is easily generated on its surface. This powder is discharged along with the dried air, causing the dried compressed air to be contaminated. Utility Model Content

[0003] The purpose of the utility model is to provide a double-tower alternating air-loss-free adsorption dryer to address the deficiencies of the prior art and to solve the problems raised in the background technology.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A double-tower alternating air-loss-free adsorption dryer comprises a filtering structure and a dryer body, wherein the filtering structure comprises a first tee, a second tee and a connecting plate, the main port of the first tee being connected to the air outlet of the dryer body via a flange, the two branch ports of the first tee and the two branch ports of the second tee being arranged opposite each other in pairs, the connecting plate being fixedly installed between the two tees, the two branches of the first tee being respectively installed with a first solenoid valve and a second solenoid valve, the two branches of the second tee being respectively installed with a third solenoid valve and a fourth solenoid valve, the two branch ports of the second tee being respectively connected with a bellows via a flange, and filter cartridges being installed between the two branch ports of the first tee and the two bellows.

[0006] As a preferred solution of a double-tower alternating air-loss-free adsorption dryer, the filter cartridge includes a cylindrical cartridge, a round cover and a filter screen. The round cover is threadedly connected to the mouth of the cylindrical cartridge, and the filter screen is installed inside the cylindrical cartridge. An air outlet is provided on the round bottom of the cylindrical cartridge, and the air outlet is connected to the bellows via a flange. An air inlet is provided on the round cover, and the air inlet is connected to the branch pipe outlet of the first tee pipe via a flange.

[0007] As a preferred solution of the double-tower alternating air-loss-free adsorption dryer, a control cabinet is installed on the dryer body, and the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve are all connected to the control cabinet.

[0008] As a preferred solution of the double-tower alternating air-loss-free adsorption dryer, the dryer body is fixedly mounted on a mounting frame, a bracket is provided on the mounting frame, and the bracket is supported on the bottom of the connecting plate and fixed to the connecting plate.

[0009] Beneficial effects of the utility model:

[0010] The utility model discloses a double-tower alternating air-loss-free adsorption dryer. By arranging a filtering structure at the air outlet of the dryer body, the dried compressed air can be filtered to remove powder in the air. By arranging two filter cartridges and four solenoid valves, the filter cartridge that needs to be replaced can be isolated by closing the corresponding solenoid valve, thereby facilitating the user to replace the filter cartridge without interfering with the normal operation of the dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0012] Figure 1 It is a schematic diagram of the overall structure of the double-tower alternating air-loss-free adsorption dryer described in the utility model.

[0013] Figure 2 It is a structural schematic diagram of the filtering structure described in the utility model.

[0014] Figure 3 It is a schematic cross-sectional structural diagram of the filter cartridge described in the present utility model.

[0015] In the picture:

[0016] 1. Filter structure; 11. First three-way pipe; 12. Second three-way pipe; 13. Connecting plate; 14. First solenoid valve; 15. Second solenoid valve; 16. Third solenoid valve; 17. Fourth solenoid valve; 18. Bellows; 19. Filter cartridge; 191. Cylindrical cartridge; 192. Round cover; 193. Filter screen; 2. Dryer body; 3. Control cabinet; 4. Mounting bracket. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0018] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0019] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] In the description of this utility model, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0021] like Figures 1 to 3 As shown, the utility model provides a double-tower alternating air-loss-free adsorption dryer, comprising a filtering structure 1 and a dryer body 2, wherein the filtering structure 1 comprises a first three-way pipe 11, a second three-way pipe 12 and a connecting plate 13, the main port of the first three-way pipe 11 is connected to the air outlet of the dryer body 2 through a flange, the two branch ports of the first three-way pipe 11 and the two branch ports of the second three-way pipe 12 are arranged opposite to each other, the connecting plate 13 is fixedly installed between the two three-way pipes, and the two branches of the first three-way pipe 11 are respectively installed with the second three-way pipe 12. A solenoid valve 14 and a second solenoid valve 15 are provided. A third solenoid valve 16 and a fourth solenoid valve 17 are respectively installed on the two branches of the second three-way pipe 12. The two branch ports of the second three-way pipe 12 are connected to a bellows 18 through flanges. All flange connections in the filtering structure 1 are provided with sealing rings. Filter cartridges 19 are respectively installed between the two branch ports of the first three-way pipe 11 and the two bellows 18. Because the bellows 18 can be stretched, the length of the filter cartridge 19 only needs to be less than the distance between the branch ports of the two three-way pipes.

[0022] The cooperation of the first solenoid valve 14 and the third solenoid valve 16 can control the passage of one filter cartridge 19, and the cooperation of the second solenoid valve 15 and the fourth solenoid valve 17 can control the passage of another filter cartridge 19. When the machine is working, only the first solenoid valve 14 and the third solenoid valve 16 are opened, or only the second solenoid valve 15 and the fourth solenoid valve 17 are opened. The dried compressed air is discharged from the air outlet of the dryer body 2 and enters the first three-way pipe 11, then passes through the filter cartridge 19, and is finally discharged from the second three-way pipe 12. When the air passes through the filter cartridge 19, the filter cartridge 19 will filter out the powder in the air. When the filter cartridge 19 needs to be replaced, it is only necessary to switch the switch state of the four solenoid valves first, isolate the filter cartridge 19 that has just worked, and then replace the isolated filter cartridge 19. The other filter cartridge 19 will ensure the normal operation of the machine.

[0023] See also Figure 3 The filter cartridge 19 includes a cylindrical cartridge 191, a round cover 192 and a filter screen 193. The round cover 192 is threadedly connected to the cylinder mouth of the cylindrical cartridge 191. A sealing ring is provided at the threaded connection between the cylindrical cartridge 191 and the round cover 192. The filter screen 193 is installed inside the cylindrical cartridge 191. The filter screen 193 installed in the cylindrical cartridge 191 adopts a detachable filter screen. After opening the round cover 192, the filter screen 193 can be removed, thereby making it convenient for the user to clean the filtered material on the filter screen 193. An air outlet is provided on the round bottom of the cylindrical cartridge 191, and the air outlet is connected to the bellows 18 through a flange. An air inlet is provided on the round cover 192, and the air inlet is connected to the branch pipe mouth of the first three-way pipe 11 through a flange. All flange connections are provided with sealing rings.

[0024] See also Figure 1 A control cabinet 3 is installed on the dryer body 2, and the first solenoid valve 14, the second solenoid valve 15, the third solenoid valve 16 and the fourth solenoid valve 17 are all connected to the control cabinet 3. The dryer body 2 is fixedly mounted on the mounting frame 4, and a bracket is provided on the mounting frame 4. The bracket is supported on the bottom of the connecting plate 13 and is fixed to the connecting plate 13.

[0025] The working principle and use process of this utility model:

[0026] When the double-tower alternating air-loss-free adsorption dryer is in use, the dried compressed air is discharged from the air outlet of the dryer body 2 and enters the first three-way pipe 11. The air is then filtered by the filter cartridge 19 and finally discharged from the second three-way pipe 12. The powder in the air will remain on the filter screen 193 of the filter cartridge 19. After a period of time, the used filter cartridge 19 is replaced. When replacing, first switch the switch state of the four solenoid valves to isolate the used filter cartridge 19, and then replace the isolated filter cartridge 19. During the replacement, the other filter cartridge 19 will ensure the normal operation of the machine.

[0027] It should be noted that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that various modifications, equivalent substitutions, and variations may be made to the present invention. However, as long as these modifications do not depart from the spirit of the present invention, they are within the scope of protection of the present invention. Furthermore, certain terms used in the specification and claims of this application are not intended to be limiting but are provided for ease of description only.

Claims

1. A double-tower alternating air-loss-free adsorption dryer, characterized in that: The invention comprises a filtering structure (1) and a dryer body (2), wherein the filtering structure (1) comprises a first three-way pipe (11), a second three-way pipe (12) and a connecting plate (13); the main pipe port of the first three-way pipe (11) is connected to the air outlet of the dryer body (2) through a flange; the two branch pipe ports of the first three-way pipe (11) and the two branch pipe ports of the second three-way pipe (12) are arranged opposite to each other in pairs; the connecting plate (13) is fixedly installed between the two three-way pipes; the two branch pipes of the first three-way pipe (11) are respectively installed with a first solenoid valve (14) and a second solenoid valve (15); the two branch pipes of the second three-way pipe (12) are respectively installed with a third solenoid valve (16) and a fourth solenoid valve (17); the two branch pipe ports of the second three-way pipe (12) are both connected to a bellows (18) through a flange; and a filter cartridge (19) is respectively installed between the two branch pipe ports of the first three-way pipe (11) and the two bellows (18).

2. The double-tower alternating zero-gas-loss adsorption dryer according to claim 1, characterized in that: The filter cylinder (19) comprises a cylindrical cylinder (191), a round cover (192) and a filter screen (193); the round cover (192) is connected to the cylinder mouth of the cylindrical cylinder (191) by means of a thread; the filter screen (193) is installed inside the cylindrical cylinder (191); an air outlet is provided on the round bottom of the cylindrical cylinder (191); the air outlet is connected to the bellows (18) by means of a flange; an air inlet is provided on the round cover (192); the air inlet is connected to the branch pipe opening of the first three-way pipe (11) by means of a flange.

3. The double-tower alternating air-loss-free adsorption dryer according to claim 1, characterized in that: A control cabinet (3) is installed on the dryer body (2); the first solenoid valve (14), the second solenoid valve (15), the third solenoid valve (16) and the fourth solenoid valve (17) are all connected to the control cabinet (3).

4. The double-tower alternating air-loss-free adsorption dryer according to claim 1, characterized in that: The dryer body (2) is fixedly mounted on a mounting frame (4), and a bracket is provided on the mounting frame (4). The bracket is supported on the bottom of the connecting plate (13) and is fixed to the connecting plate (13).

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