Moisture shunting zero-gas-consumption compression heat regeneration type dryer
By using a moisture-diverting zero-air-consumption compression heat regeneration dryer, the high-temperature air discharged from an air compressor is used to regenerate the adsorbent, solving the problem that the desiccant needs external heating in existing technologies and achieving a drying effect with zero air consumption and continuous operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-03
AI Technical Summary
Existing desiccants require external heating devices to heat and evaporate moisture during compressed air drying, which increases energy consumption and operational complexity.
The dryer employs a moisture-splitting zero-air-consumption compression heat regeneration dryer, which uses high-temperature, low-humidity compressed air discharged from an air compressor to regenerate the adsorbent. Continuous operation is achieved by switching between the first and second towers, avoiding the need for additional heating devices.
It achieves zero-gas-consumption drying of compressed gas, saving energy consumption, simplifying the drying process, and ensuring the stability of continuous operation.
Smart Images
Figure CN224071606U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dryer technology, and in particular to a moisture-diverting zero-air-consumption compression heat regeneration dryer. Background Technology
[0002] Currently, the industrial drying of compressed air typically employs adsorption, where a desiccant absorbs moisture from the compressed air, turning it into dry air. Since no chemical reaction occurs between the moisture and the desiccant, the amount of desiccant remains constant, so no additional desiccant is usually needed. However, over time, with each absorption of moisture, the drying function eventually diminishes.
[0003] In the existing technology, the drying process of desiccants is to heat compressed gas or other regeneration media with an external heating device to evaporate and remove the moisture in the desiccant. This operation consumes additional energy and makes the drying process complicated. Utility Model Content
[0004] The purpose of this invention is to provide a moisture-diverting, zero-air-consumption, compression-heat regeneration dryer to solve the aforementioned technical problems.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A moisture-dissipating zero-air-consumption compression heat regeneration dryer includes a first tower body, a second tower body, a first cooler, a water removal filter, a dust removal filter, a switching valve assembly, a piping assembly, a second cooler, a third cooler, and a PLC controller. The piping assembly connects the first tower body and the second tower body. The switching valve assembly, the first cooler, the second cooler, the third cooler, and the water removal filter are installed on the piping assembly. The dust removal filter is installed at the outlet end of the piping assembly. The PLC controller is connected to the first cooler, the second cooler, the water removal filter, the dust removal filter, and the switching valve assembly.
[0007] Preferably, the piping assembly includes a first heating pipe, a second heating pipe, a third heating pipe, and a fourth heating pipe. One end of the first heating pipe is connected to the first tower body. The second heating pipe is connected to the first outlet of the first tower body and the first inlet of the second tower body. The third heating pipe is connected to the first outlet of the second tower body and the first inlet of the first tower body. The fourth heating pipe is connected to the second outlet of the first tower body and the dust removal filter.
[0008] As a further preferred embodiment, the system also includes a first cold blowing pipe, a second cold blowing pipe, a third cold blowing pipe, a fourth cold blowing pipe, and a fifth cold blowing pipe. The first cold blowing pipe connects the first heating pipe and the third heating pipe. The second cold blowing pipe connects the third heating pipe and the first outlet of the second tower body. The third cold blowing pipe connects the second heating pipe and the second inlet of the second tower body. The fourth cold blowing pipe connects the second outlet of the second tower body and the third heating pipe. The fifth cold blowing pipe connects the third heating pipe and the first inlet of the first tower body.
[0009] As a further preferred embodiment, the system also includes a first adsorption line and a second adsorption line, wherein the first adsorption line is connected to the fourth heating line and the second heating line, and the second adsorption line is connected to the second heating line and the fourth heating line.
[0010] As a further preferred embodiment, the third heating pipe is provided with the first cooler and the water removal filter, the fourth heating pipe is provided with the dust removal filter, and the fourth cold blowing pipe is provided with the second cooler.
[0011] As a further preferred embodiment, the switching valve assembly includes a first valve body, a second valve body, a third valve body, a fourth valve body, a fifth valve body, and a sixth valve body. The first valve body is disposed on the first heating pipe, the second valve body is disposed on the second heating pipe, the third valve body, the fourth valve body, and the fifth valve body are disposed sequentially on the third heating pipe, and the sixth valve body is disposed on the fourth heating pipe.
[0012] As a further preferred embodiment, the switching valve assembly further includes a seventh valve body, an eighth valve body, a ninth valve body, and a tenth valve body, wherein the seventh valve body is provided on the first cold blowing pipe, the eighth valve body is provided on the second cold blowing pipe, the ninth valve body is provided on the fourth cold blowing pipe, and the tenth valve body is provided on the fifth cold blowing pipe.
[0013] As a further preferred embodiment, the switching valve assembly further includes an eleventh valve body and a twelfth valve body, the eleventh valve body being disposed on the first adsorption pipeline and the twelfth valve body being disposed on the second adsorption pipeline.
[0014] As a further preferred embodiment, a bypass branch is also included, which connects the first heating pipe and the fourth heating pipe, and the third cooler is disposed on the bypass branch.
[0015] The above technical solution has the following advantages or beneficial effects:
[0016] In this invention, the setup of a first tower body, a second tower body, a first cooler, a water removal filter, a dust removal filter, a switching valve assembly, a pipeline assembly, a second cooler, and a PLC controller enables continuous operation, including adsorption in the first tower body, heating and regeneration in the second tower body, adsorption in the first tower body, cold blowing in the second tower body, standby, and parallel adsorption. Furthermore, it can cooperate with an external air compressor, utilizing the heat from the high-temperature, low-relative-humidity compressed air discharged by the compressor to regenerate the adsorbent, dehydrating and drying it, thereby achieving zero gas consumption. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the moisture-diverting zero-air-consumption compression heat regeneration dryer of this utility model;
[0018] Figure 2 This is a schematic diagram of the moisture-diverting zero-air-consumption compression heat regeneration dryer of this utility model.
[0019] In the diagram: 1. First tower body; 2. Second tower body; 3. First cooler; 4. Water removal filter; 5. Dust removal filter; 6. Piping assembly; 7. Second cooler; 8. First heating pipe; 9. Second heating pipe; 10. Third heating pipe; 11. Fourth heating pipe; 12. First cold blowing pipe; 13. Second cold blowing pipe; 14. Third cold blowing pipe; 15. Fourth cold blowing pipe; 16. Fifth cold blowing pipe; 17. First adsorption pipe; 18. Second adsorption pipe; 19. First valve body; 20. Second valve body; 21. Third valve body; 22. Fourth valve body; 23. Fifth valve body; 24. Sixth valve body; 25. Seventh valve body; 26. Eighth valve body; 27. Ninth valve body; 28. Tenth valve body; 29. Eleventh valve body; 30. Twelfth valve body; 31. PLC controller; 32. Bypass branch; 33. Third cooler. Detailed Implementation
[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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 be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.
[0023] Figure 1 This is a schematic diagram of the structure of the moisture-diverting zero-air-consumption compression heat regeneration dryer of this utility model; Figure 2 This is a system schematic diagram of the moisture-diverting, zero-air-consumption compression heat regeneration dryer of this utility model. Please refer to... Figures 1 to 2The diagram illustrates a preferred embodiment of a moisture-distribution zero-air-consumption compression heat regeneration dryer, comprising a first tower 1, a second tower 2, a first cooler 3, a water removal filter 4, a dust removal filter 5, a switching valve assembly, a piping assembly 6, a second cooler 7, a third cooler 33, and a PLC controller 31. The piping assembly 6 connects the first tower 1 and the second tower 2. The switching valve assembly, the first cooler 3, the second cooler 7, the third cooler 33, and the water removal filter 4 are mounted on the piping assembly 6. A dust removal filter 5 is mounted at the outlet end of the piping assembly 6. The PLC controller 31 is connected to the first cooler 3, the second cooler 7, the water removal filter 4, the dust removal filter 5, and the switching valve assembly. In this embodiment, the PLC controller 31 can control the operating states of the switching valve assembly, the first cooler 3, the water removal filter 4, the dust removal filter 5, and the second cooler 7. Specifically, the PLC controller 31 can control the opening and closing intervals of each valve in the switching valve assembly. The switching valve assembly can control the opening and closing of the pipeline assembly 6 to switch between different operating modes. This embodiment also includes an air compressor connected to the inlet of the pipeline assembly 6 to deliver unsaturated high-temperature compressed air into the assembly. The heat from this air regenerates the adsorbent, dehydrating and drying it without the need for additional heating devices, saving energy and simplifying the drying process. A first cooler 3 and a second cooler 7 are provided to cool the gas, and a water filter 4 is provided to filter water from the gas, preventing water from entering the first tower body 1. Regenerating desiccant is provided inside both the first tower body 1 and the second tower body 2.
[0024] In this embodiment, the heat from the high-temperature exhaust of the air compressor is used to directly heat the regenerated desiccant. Since no air is consumed during the heating and regeneration process, energy is saved to the greatest extent.
[0025] Furthermore, as a preferred embodiment, the pipeline assembly 6 includes a first heating pipeline 8, a second heating pipeline 9, a third heating pipeline 10, and a fourth heating pipeline 11. One end of the first heating pipeline 8 is connected to the first tower body 1. The second heating pipeline 9 connects the first outlet of the first tower body 1 and the first inlet of the second tower body 2. The third heating pipeline 10 connects the first outlet of the second tower body 2 and the first inlet of the first tower body 1. The fourth heating pipeline 11 connects the second outlet of the first tower body 1 and the dust filter 5. In this embodiment, the arrangement of the first heating pipeline 8, the second heating pipeline 9, the third heating pipeline 10, and the fourth heating pipeline 11 facilitates the entry of high-temperature compressed air into the second tower body 2, where it contacts the regenerating desiccant and removes moisture from the desiccant. After cooling and dehydration filtration, the saturated water in the compressed air is drained. The compressed air then enters the first tower body 1 to adsorb and dry the moisture in the compressed air. Finally, it enters the dust filter 5 through the fourth heating pipeline 11 and is discharged to the point of use. This process is a heating regeneration process.
[0026] Furthermore, as a preferred embodiment, it also includes a first cold blowing pipe 12, a second cold blowing pipe 13, a third cold blowing pipe 14, a fourth cold blowing pipe 15, and a fifth cold blowing pipe 16. The first cold blowing pipe 12 is connected to the first heating pipe 8 and the third heating pipe 10. The second cold blowing pipe 13 is connected to the third heating pipe 10 and the first outlet of the second tower body 2. The third cold blowing pipe 14 is connected to the second heating pipe 9 and the second inlet of the second tower body 2. The fourth cold blowing pipe 15 is connected to the second outlet of the second tower body 2 and the third heating pipe 10. The fifth cold blowing pipe 16 is connected to the third heating pipe 10 and the first inlet of the first tower body 1. The arrangement of the first cold blowing pipe 12, the second cold blowing pipe 13, the third cold blowing pipe 14, the fourth cold blowing pipe 15, and the fifth cold blowing pipe 16 allows compressed air to enter the second tower 2 after cooling and dehydration filtration, where it cools the regenerated desiccant. The compressed air then enters the first tower 1 and finally enters the dust filter 5 through the fourth heating pipe 11 for treatment before being discharged to the point of use. This process is called cold blowing regeneration.
[0027] Furthermore, as a preferred embodiment, it also includes a first adsorption pipe 17 and a second adsorption pipe 18. The first adsorption pipe 17 is connected to the fourth heating pipe 11 and the second heating pipe 9, and the second adsorption pipe 18 is connected to the second heating pipe 9 and the fourth heating pipe 11. The first adsorption pipe 17 is interconnected with the fourth heating pipe 11 and the second heating pipe 9, and the second adsorption pipe 18 is interconnected with the second heating pipe 9 and the fourth heating pipe 11.
[0028] Furthermore, as a preferred embodiment, the third heating pipe 10 is provided with a first cooler 3 and a water removal filter 4, the fourth heating pipe 11 is provided with a dust removal filter 5, and the fourth cold blowing pipe 15 is provided with a second cooler 7.
[0029] Furthermore, as a preferred embodiment, the switching valve assembly includes a first valve body 19, a second valve body 20, a third valve body 21, a fourth valve body 22, a fifth valve body 23, and a sixth valve body 24. The first valve body 19 is disposed on the first heating pipe 8, the second valve body 20 is disposed on the second heating pipe 9, the third valve body 21, the fourth valve body 22, and the fifth valve body 23 are sequentially disposed on the third heating pipe 10, and the sixth valve body 24 is disposed on the fourth heating pipe 11. The first valve body 19, the second valve body 20, the third valve body 21, the fourth valve body 22, the fifth valve body 23, and the sixth valve body 24 can all be solenoid valves, used to connect to the PLC controller 31. The PLC controller 31 can control the opening or closing of the first valve body 19, the second valve body 20, the third valve body 21, the fourth valve body 22, the fifth valve body 23, and the sixth valve body 24.
[0030] Furthermore, as a preferred embodiment, the switching valve assembly also includes a seventh valve body 25, an eighth valve body 26, a ninth valve body 27, and a tenth valve body 28. The seventh valve body 25 is installed on the first cold blowing pipe 12, the eighth valve body 26 is installed on the second cold blowing pipe 13, the ninth valve body 27 is installed on the fourth cold blowing pipe 15, and the tenth valve body 28 is installed on the fifth cold blowing pipe 16. In this embodiment, the seventh valve body 25, the eighth valve body 26, the ninth valve body 27, and the tenth valve body 28 are all solenoid valves, used for connection to the PLC controller 31.
[0031] Furthermore, as a preferred embodiment, the switching valve assembly also includes an eleventh valve body 29 and a twelfth valve body 30. The eleventh valve body 29 is disposed on the first adsorption pipeline 17, and the twelfth valve body 30 is disposed on the second adsorption pipeline 18. Both the eleventh valve body 29 and the twelfth valve body 30 are solenoid valves used to connect to the PLC controller 31. The distribution positions of the first valve body 19, second valve body 20, third valve body 21, fourth valve body 22, fifth valve body 23, sixth valve body 24, seventh valve body 25, eighth valve body 26, ninth valve body 27, tenth valve body 28, eleventh valve body 29, and twelfth valve body 30 on the respective pipelines can be found in [reference needed]. Figure 2As shown. By controlling the opening or closing of different valves, the following operations can be achieved: adsorption in the first tower 1 and heating and regeneration in the second tower 2; adsorption in the first tower 1 and cooling and regeneration in the second tower 2; adsorption in the first tower 1 and standby in the second tower 2; adsorption in the first tower 1 and adsorption in the second tower 2; adsorption in the second tower 2 and heating and regeneration in the first tower 1; adsorption in the second tower 2 and cooling and regeneration in the first tower 1; adsorption in the second tower 2 and standby in the first tower 1; adsorption in the second tower 2 and adsorption in the first tower 1. This process is repeated continuously to achieve continuous operation.
[0032] Furthermore, as a preferred embodiment, the bypass branch 32 connects the first heating pipe 8 and the fourth heating pipe 11, and the third cooler 33 is disposed on the bypass branch 32. The third cooler 33 can directly cool compressed air, and then the cooled compressed air is passed into the dust filter 5.
[0033] The following explanation uses the adsorption process of the first tower body 1 as an example;
[0034] When the first tower 1 adsorbs and the second tower 2 heats and regenerates, the high-temperature compressed air first enters the second tower 2 after passing through the first valve body 19 and the second valve body 20, carrying away the moisture of the regenerating desiccant inside. Then it passes through the third valve body 21, the fourth valve body 22, the first cooler 3, the second cooler 7 and the fifth valve body 23 before entering the first tower 1. After passing through the sixth valve body 24, it enters the dust removal filter 5 for filtration, and then is discharged to the point of use.
[0035] When the first tower 1 adsorbs and the second tower 2 is purged and regenerated, the seventh valve 25 opens, and the first valve 19 and the fourth valve 22 close. At this time, the compressed air will pass through the seventh valve 25, the first cooler 3, the water removal filter 4 and the eighth valve 26 before entering the second tower 2 to cool the regenerated desiccant. Then it will enter the second tower 2 again through the second valve 20 and the third cold blowing pipeline 14. Then it will enter the first tower 1 through the ninth valve 27 and the tenth valve 28. Finally, it will enter the dust removal filter 5 through the sixth valve 24 for filtration before being discharged to the point of use.
[0036] When the first tower 1 is adsorbing and the second tower 2 is in standby mode, the fifth valve 23 is opened and the ninth valve 27, the eighth valve 26 and the second valve 20 are closed, entering the standby program. The standby time refers to the time between the end of cooling and the switching between the first tower 1 and the second tower 2. When the drying working time set by the PLC controller 31 is reached or a pressure dew point warning occurs, the standby time ends. When the cooling process ends, the ninth valve 27, the tenth valve 28, the eighth valve 26 and the second valve 20 will be automatically closed, and the fifth valve 23 will be opened.
[0037] When the first tower 1 and the second tower 2 are adsorbing, after standby, the eighth valve 26 and the twelfth valve 30 are opened, and the adsorption program of the first tower 1 and the second tower 2 is entered. Then, it waits for the next switch with thermal regeneration, that is, the first valve 19, the fourth valve 22, the tenth valve 28, the eleventh valve 29 and the twelfth valve 30 are opened, and the seventh valve 25, the fifth valve 23 and the sixth valve 24 are closed. Then, the adsorption of the second tower 2 is entered, and the first tower 1 has a thermal regeneration process. This process is repeated continuously to achieve the purpose of continuous operation.
[0038] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wet split zero-gas- consumption compression heat regenerative desiccant dryer characterized by, The device comprises a first tower body, a second tower body, a first cooler, a water removal filter, a dust removal filter, a switching valve assembly, a pipeline assembly, a second cooler, a third cooler, and a PLC controller.
2. The wet-split zero-gas-emission compression heat regenerated desiccant dehumidifier of claim 1, wherein, The pipeline assembly comprises a first heating pipeline, a second heating pipeline, a third heating pipeline, and a fourth heating pipeline.
3. The wet-split zero-gas-emission compression heat regenerated desiccant dehumidifier of claim 2, wherein, The first heating pipeline is connected to the first tower body.
4. The wet-split zero-gas-emission compression heat regenerated desiccant dehumidifier of claim 3, wherein, The second heating pipeline is connected to the first outlet of the first tower body and the first inlet of the second tower body.
5. The wet-split zero-gas-emission compression heat regenerated desiccant dehumidifier of claim 3, wherein, The third heating pipeline is connected to the first outlet of the second tower body and the first inlet of the first tower body.
6. The wet-split zero-gas-emission compression heat regenerated desiccant dehumidifier of claim 4, wherein, The fourth heating pipeline is connected to the second outlet of the first tower body and the dust removal filter.
7. The wet-split zero-gas-emission compression heat regenerated desiccant dehumidifier of claim 4, wherein, The third heating pipeline is provided with the first cooler and the water removal filter.
8. The wet-split zero-gas-emission compression heat regenerated desiccant dehumidifier of claim 4, wherein, The fourth heating pipeline is provided with the dust removal filter. The fourth cooling pipeline is provided with the second cooler. The switching valve assembly comprises a first valve body, a second valve body, a third valve body, a fourth valve body, a fifth valve body, and a sixth valve body. The first heating pipeline is provided with the first valve body. The second heating pipeline is provided with the second valve body. The third heating pipeline is provided with the third valve body, the fourth valve body, and the fifth valve body in sequence. The fourth heating pipeline is provided with the sixth valve body. The switching valve assembly further comprises a seventh valve body, an eighth valve body, a ninth valve body, and a tenth valve body. The first cooling pipeline is provided with the seventh valve body. The second cooling pipeline is provided with the eighth valve body. The fourth cooling pipeline is provided with the ninth valve body. The fifth cooling pipeline is provided with the tenth valve body. The switching valve assembly further comprises an eleventh valve body and a twelfth valve body. The eleventh valve body is arranged on the first adsorption pipeline. The twelfth valve body is arranged on the second adsorption pipeline.
9. The wet-split zero-gas-emission compression heat regenerated desiccant dehumidifier of claim 2, wherein, A bypass branch is further included, which connects the first heating pipeline and the fourth heating pipeline, and the third cooler is arranged on the bypass branch.