Compressed air drying equipment
By using a dual-tower alternating operation design, high-temperature compressed air is used to reduce the adsorbent material, solving the problem that the adsorbent material cannot be replaced online after it becomes saturated in the existing technology, and realizing continuous drying of compressed air and energy saving.
Patent Information
- Application Number
- CN202520871186.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-05-06
AI Technical Summary
The existing compressed air drying equipment needs to be replaced after the activated alumina and 13X molecular sieve in the adsorption tower become saturated. It is not possible to replace them without stopping the production line, which makes the replacement troublesome and wasteful of resources.
The design employs a dual-tower alternating operation, utilizing high-temperature compressed air to reduce the saturated adsorbent material, ensuring continuous drying of the compressed air and avoiding downtime for adsorbent material replacement.
It achieves the goal of keeping compressed air dry without shutting down the machine, saving energy and avoiding unnecessary equipment downtime and frequent material replacement.
Smart Images
Figure CN223861618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of compressed air drying equipment, and specifically to a compressed air drying equipment. Background Technology
[0002] Compressed air produced by an air compressor contains a certain amount of moisture and needs to be dried before use; otherwise, it will corrode the equipment. Existing compressed air dryers use activated alumina and 13X molecular sieves in their adsorption towers to adsorb moisture as moisture adsorption materials. The compressed air is dried by adsorbing moisture from the compressed air. After a period of operation, the activated alumina and 13X molecular sieves become saturated, and the dryer needs to be replaced. However, the existing production line cannot be shut down and needs to continuously supply dry compressed air, making dryer replacement troublesome and requiring improvement. Utility Model Content
[0003] To address the above problems, this utility model provides a compressed air drying device to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A compressed air drying device includes a first tower, a second tower, and an inlet pipe. The inlet pipe, from left to right, is connected to a first end of a first pipe, has a second valve, a tenth valve, and connects to the upper end of the first tower. The lower end of the first tower is connected to a second pipe. The second pipe, from right to left, is connected to a first end of a third pipe, has a sixth valve, a fifth valve, and connects to the lower end of the second tower. The third pipe, from right to left, has an eighth valve and a seventh valve. The second end of the third pipe is connected to a pipe section of the second pipe between the fifth valve and the second tower. The upper end of the second tower is connected to a fourth pipe. The fourth pipe, from bottom to top, is connected to a first end of a fifth pipe, has an eleventh valve, and connects to the first ends of a sixth pipe and a seventh pipe. The second end of the fifth pipe is connected to the pipe section between the second valve and the tenth valve of the air intake pipe and forms a first connection point. The fifth pipe is provided with a ninth valve. The second end of the sixth pipe is connected to the pipe section between the tenth valve and the first tower of the air intake pipe. The sixth pipe is also provided with a twelfth valve. The seventh pipe, from bottom to top, is provided with a filter, a first end connected to the eighth pipe, a fourteenth valve, a booster, a thirteenth valve, a second end connected to the eighth pipe, a first end of the ninth pipe, a fifteenth valve, an electric heater, a pipe section connecting the second end of the ninth pipe and the pipe section connecting the fifth pipe between the first connection point and the ninth valve. The ninth pipe, from bottom to top, is connected to a sixteenth valve and a second cooler. The eighth pipe is provided with a seventeenth valve.
[0006] The first pipeline is provided with a first valve, a first cooler, a first gas-water separator and a pipe section connecting the second pipeline between the sixth valve and the fifth valve, from top to bottom;
[0007] The third pipeline is connected to the first end of the tenth pipeline in the pipe section between the eighth valve and the seventh valve. The tenth pipeline is connected to the first end of the eleventh pipeline from bottom to top, and is provided with a fourth valve, a second gas-water separator, and a pipe section connected to the ninth pipeline between the sixteenth valve and the second cooler. The second end of the eleventh pipeline is connected to the pipe section of the first pipeline between the first valve and the first cooler. The eleventh pipeline is provided with a third valve.
[0008] The beneficial effects of this utility model are as follows: By setting up a first tower and a second tower, this utility model uses high-temperature compressed air to reduce the adsorbent material. When the adsorbent material in the first tower is saturated, high-temperature gas is used to reduce the saturated adsorbent material, and the adsorbent material in the second tower adsorbs the moisture in the compressed air. When the adsorbent material in the second tower is saturated, high-temperature gas is used to reduce the adsorbent material in the second tower, and the first tower adsorbs the moisture. The two towers work alternately, which can ensure that the compressed air remains dry without stopping the machine to replace the compressed air drying equipment. The use of high-temperature compressed gas to reduce the adsorbent material saves energy. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of an embodiment;
[0010] Figure 2 This is a diagram of the piping system;
[0011] Explanation of reference numerals in the attached diagram: 1. First tower; 2. Second tower; 3. Inlet pipe; 4. First pipe; 5. Second valve; 6. Tenth valve; 7. Second pipe; 8. Third pipe; 9. Sixth valve; 10. Fifth valve; 11. Eighth valve; 12. Seventh valve; 13. Fourth pipe; 14. Fifth pipe; 15. Eleventh valve; 16. Sixth pipe; 17. Seventh pipe; 18. First connection point; 19. Ninth valve; 20. Twelfth valve; 21. Filter; 22. Eighth pipe; 23. Fourteenth valve; 24. Booster; 25. Thirteenth valve; 26. Ninth pipe; 27. Fifteenth valve; 28. Electric heater; 29. Sixteenth valve; 30. Second cooler; 31. First valve; 32. First cooler; 33. First gas-water separator; 34. Tenth pipe; 35. Eleventh pipe; 36. Fourth valve; 37. Second gas-water separator; 38. Seventeenth valve; 39. Third valve. Detailed Implementation
[0012] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.
[0013] Example: Refer to Figures 1 to 2 The compressed air drying equipment of this utility model includes a first tower 1, a second tower 2, and an air inlet pipe 3. The air inlet pipe 3, from left to right, is connected to the first end of a first pipe 4, has a second valve 5, a tenth valve 6, and connects to the upper end of the first tower 1. The lower end of the first tower 1 is connected to a second pipe 7. The second pipe 7, from right to left, is connected to the first end of a third pipe 8, has a sixth valve 9, a fifth valve 10, and connects to the lower end of the second tower 2. The third pipe 8, from right to left, has an eighth valve 11 and a seventh valve 12. The second end of the third pipe 8 is connected to the pipe section of the second pipe 7 between the fifth valve 10 and the second tower 2. The upper end of the second tower 2 is connected to a fourth pipe 13. The fourth pipe 13, from bottom to top, is connected to the first end of a fifth pipe 14, has an eleventh valve 15, and connects to the first end of a sixth pipe 16 and the first end of a seventh pipe 17. The fifth pipe 14... The second end of the fifth pipe 14 is connected to the pipe section between the second valve 5 and the second valve 6 of the intake pipe 3, forming the first connection point 18. The fifth pipe 14 is provided with the ninth valve 19. The second end of the sixth pipe 16 is connected to the pipe section between the tenth valve 6 and the first tower 1 of the intake pipe 3. The sixth pipe 16 is also provided with the twelfth valve 20. The seventh pipe 17 is provided with the following from bottom to top: filter 21, the first end connected to the eighth pipe 22, the fourteenth valve 23, the booster 24, the thirteenth valve 25, the second end connected to the eighth pipe 22, the first end of the ninth pipe 26, the fifteenth valve 27, the electric heater 28, the second end connected to the ninth pipe 26 and the pipe section connected to the fifth pipe 14 between the first connection point 18 and the ninth valve 19. The ninth pipe 26 is connected to the sixteenth valve 29 and the second cooler 30 from bottom to top. The eighth pipe 22 is provided with the seventeenth valve 38.
[0014] The first pipeline 4 is provided with, from top to bottom, a first valve 31, a first cooler 32, a first gas-water separator 33, and a pipe section connecting the second pipeline 7 between the sixth valve 9 and the fifth valve 10;
[0015] The third pipe 8 is connected to the first end of the tenth pipe 34 in the pipe section between the eighth valve 11 and the seventh valve 12. The tenth pipe 34 is connected from bottom to top to the first end of the eleventh pipe 35, and is provided with the fourth valve 36, the second gas-water separator 37, and the pipe section connected to the ninth pipe 26 between the sixteenth valve 29 and the second cooler 30. The second end of the eleventh pipe 35 is connected to the pipe section of the first pipe 4 between the first valve 31 and the first cooler 32. The eleventh pipe is provided with the third valve.
[0016] All valves are pneumatic butterfly valves. Both the first tower 1 and the second tower 2 are filled with adsorbent materials such as activated alumina and 13X molecular sieve. The adsorbent materials adsorb moisture at low temperatures, and at high temperatures, the moisture is released from the active adsorbent materials, restoring their adsorption function. This invention utilizes the high temperature of compressed air to reduce the adsorbent materials. When the adsorbent material in the first tower 1 is saturated, the saturated adsorbent material is reduced using high temperature gas, and the adsorbent material in the second tower 2 adsorbs moisture from the compressed air. When the adsorbent material in the second tower 2 is saturated, the adsorbent material in the second tower 2 is reduced using high temperature gas, and the moisture is adsorbed from the first tower 1. The two towers work alternately to ensure that the compressed air remains dry without stopping the machine to replace the compressed air drying equipment. The use of high temperature compressed gas to reduce the adsorbent materials saves energy.
[0017] The following example illustrates the working principle using the scenario where the first tower 1 requires reduction and the second tower 2 adsorbs moisture:
[0018] Work Mode 1:
[0019] Moisture can only be released from the adsorbent material when the temperature is above 105 degrees Celsius. When the temperature of the compressed air is between 80 and 110 degrees Celsius, the following workflow is adopted:
[0020] When the compressed air temperature is between 105 and 110 degrees Celsius, the compressed air flows through the following channels: Second Valve 5 → Tenth Valve 6 → First Tower 1 → Eighth Valve 11 → Third Valve 39 → First Cooler 32 → First Gas-Water Separator 33 → Fifth Valve 10 → Second Tower 2 → Eleventh Valve 15 → First Outlet. The saturated adsorbent material in the First Tower 1 is reduced by the high-temperature compressed air, and moisture is released from the adsorbent material. After being cooled by the First Cooler 32, the moisture is then adsorbed by the Second Tower 2. Finally, the dry compressed air is discharged from the Fourth Pipeline 13.
[0021] Valve open status: Second valve 5, third valve 39, fifth valve 10, eighth valve 11, tenth valve 6 and eleventh valve 15 are open, and other valves are closed.
[0022] When the compressed air temperature is below 105 degrees Celsius, the activated alumina in the first tower 1 cannot be fully reduced. Therefore, the compressed exhaust gas needs to be heated before the activated alumina in the first tower 1 is reduced. The workflow is as follows:
[0023] Compressed air → First valve 31 → First cooler 32 → First gas-water separator 33 → Fifth valve 10 → Second tower 2 → Eleventh valve 15 → First outlet, discharged; Dry compressed air passes through the second outlet → Filter 21 → Fourteenth valve 23 → Booster 24 → Thirteenth valve 25 → Fifteenth valve 27 → Electric heater 28 → Tenth valve 6 → First tower 1 → Eighth valve 11 → Third valve 39 → First cooler 32, that is, after being cooled by the first cooler 32, the compressed air is adsorbed by the second tower 2 and discharged from the first outlet. The dry compressed air is drawn from the second outlet, heated by the electric heater 28, and then used to reduce the adsorbent material in the first tower 1. It then flows into the first pipe 4 and is discharged from the first outlet.
[0024] Valve open status: First valve 31, third valve 39, fifth valve 10, eighth valve 11, tenth valve 6, eleventh valve 15, thirteenth valve 25, fourteenth valve 23 and fifteenth valve 27 are open, and other valves are closed.
[0025] After the first tower 1 completes the reduction of the adsorbent material, the adsorbent material needs to be cooled down. The following workflow is adopted:
[0026] Compressed air → First valve 31 → First cooler 32 → First water-air separator 33 → Fifth valve 10 → Second tower 2 → Eleventh valve 15 → First outlet, second outlet → Filter 21 → Fourteenth valve 23 → Booster 24 → Thirteenth valve 25 → Sixteenth valve 29 → Second cooler 30 → Tenth valve 6 → First tower 1 → Eighth valve 11 → Third valve 39 → First cooler 32. Compressed air is discharged from the first outlet after being adsorbed by the second tower 2. Dry compressed air enters from the second outlet and is pressurized by the booster 24. After being cooled by the second cooler 30, it cools down the reduced adsorbent material in the first tower 1. After cooling is completed, the adsorbent material in the second tower 2 is replaced for reduction. The first tower 1 adsorbs moisture.
[0027] Valve open status: Valve 11, Valve 39, Valve 5, Valve 10, Valve 8, Valve 11, Valve 6, Valve 11, Valve 15, Valve 13, Valve 25, Valve 23 and Valve 29 are open, and other valves are closed.
[0028] Working Mode Two:
[0029] When the temperature of the compressed air approaches 120 degrees Celsius, the following workflow is adopted:
[0030] Compressed air → Second valve 5 → Tenth valve 6 → First tower 1 → Eighth valve 11 → Third valve 39 → First cooler 32 → First gas-water separator 33 → Fifth valve 10 → Second tower 2 → Eleventh valve 15 → First outlet. High-temperature compressed air is used to reduce the adsorbent material in the first tower 1, without the need for secondary heating of the compressed air.
[0031] Valve open status: Second valve 5, third valve 39, fifth valve 10, eighth valve 11, tenth valve 6 and eleventh valve 15 are open, and other valves are closed.
[0032] After the first tower 1 completes the reduction of the adsorbent material, it needs to be cooled with low-temperature, dry air. The following workflow is adopted:
[0033] For example, the cooling process in working mode one.
[0034] In working modes one and two, when the booster compressor 24 is temporarily unable to work, the following workflow is used to cool the adsorption material in the first tower 1:
[0035] Compressed air → First valve 31 → First cooler 32 → First gas-water separator 33 → Sixth valve 9 → First tower 1 → Tenth valve 6 → Second cooler 30 → Second gas-water separator 37 → Fourth valve 36 → Seventh valve 12 → Second tower 2 → Eleventh valve 15 → First outlet.
[0036] Valve open status: Valve 31 (first valve), 36 (fourth valve), 9 (sixth valve), 12 (seventh valve), 6 (tenth valve), and 15 (eleventh valve) are open; other valves are closed.
[0037] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.
[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A compressed air drying device, comprising a first tower (1), a second tower (2), and an air inlet pipe (3), characterized in that: The intake pipe (3) is connected from left to right to the first end of the first pipe (4), a second valve (5), a tenth valve (6), and the upper end of the first tower (1). The lower end of the first tower (1) is connected to the second pipe (7). The second pipe (7) is connected from right to left to the first end of the third pipe (8), a sixth valve (9), a fifth valve (10), and the lower end of the second tower (2). The third pipe (8) is connected from right to left to the eighth valve (11) and the seventh valve (12). The second end of the third pipe (8) is connected to the pipe section of the second pipe (7) between the fifth valve (10) and the second tower (2). The upper end of the second tower (2) is connected to the fourth pipe (13). The fourth pipe (13) is connected from bottom to top to the first end of the fifth pipe (14), an eleventh valve (15), the first end of the sixth pipe (16), and the first end of the seventh pipe (17). The second end of the fifth pipe (14) is connected to the intake pipe (3) between the second valve (9) and the lower end of the second tower (2). The pipe section between the fifth pipe (5) and the tenth valve (6) forms the first connection point (18). The fifth pipe (14) is provided with the ninth valve (19). The second end of the sixth pipe (16) is connected to the pipe section between the tenth valve (6) and the first tower (1) of the air inlet pipe (3). The sixth pipe (16) is also provided with the twelfth valve (20). The seventh pipe (17) is provided with a filter (21), the first end connected to the eighth pipe (22), the fourteenth valve (23), and the booster in sequence from bottom to top. (24), the thirteenth valve (25), the second end of the eighth pipe (22), the first end of the ninth pipe (26), the fifteenth valve (27), the electric heater (28), the pipe section connecting the second end of the ninth pipe (26) and the fifth pipe (14) between the first connection point (18) and the ninth valve (19), the ninth pipe (26) being connected from bottom to top to the sixteenth valve (29) and the second cooler (30), the eighth pipe (22) being provided with the seventeenth valve (38); The first pipeline (4) is provided with a first valve (31), a first cooler (32), a first gas-water separator (33) and a pipe section connecting the second pipeline (7) between the sixth valve (9) and the fifth valve (10) from top to bottom; The third pipe (8) is connected to the first end of the tenth pipe (34) in the pipe section between the eighth valve (11) and the seventh valve (12). The tenth pipe (34) is connected from bottom to top to the first end of the eleventh pipe (35), and is provided with the fourth valve (36), the second gas-water separator (37), and the pipe section connected to the ninth pipe (26) between the sixteenth valve (29) and the second cooler (30). The second end of the eleventh pipe (35) is connected to the pipe section of the first pipe (4) between the first valve (31) and the first cooler (32). The eleventh pipe (35) is provided with the third valve (39).