Compression heat regeneration rotary compressed air dryer

Abstract

The utility model relates to the field of drying machines, in particular to a compression heat regeneration rotary type compressed air drying machine which comprises an air inlet pipeline, a rotary wheel assembly and an air outlet pipeline, the rotary wheel assembly comprises a shell, a regeneration area and an adsorption area, and the air inlet pipeline comprises a first air inlet pipe, a second air inlet pipe and a third air inlet pipe. The second gas inlet pipe is respectively communicated with the cooler and the adsorption area, the third gas inlet pipe is communicated with the first gas inlet pipe, and the third gas inlet pipe is communicated with the regeneration area or is communicated with the regeneration area through a pipeline after being connected with a heater; the air outlet pipeline comprises a first air outlet pipe and a second air outlet pipe, the first air outlet pipe is communicated with the regeneration area and the first air inlet pipe, a manual valve is arranged on the first air inlet pipe, and the second air outlet pipe is communicated with the adsorption area; a water distribution filter screen is arranged in the shell corresponding to the bottom of the adsorption area, a first water outlet is formed in the shell corresponding to the water distribution filter screen, and through the technical scheme, the air purifier has the advantages that the size is reduced, and the cost investment is reduced.

Description

Technical Field

[0001] The utility model relates to a compression heat regeneration type dryer, in particular to a compression heat regeneration type rotary compressed air dryer. Background Art

[0002] Adsorption dryer is used to filter out saturated water vapor in saturated compressed air by using a molecular sieve specially designed for gas purification, which takes advantage of the difference in volume between water and air molecules. Water molecules can be easily adsorbed in the molecular sieve particles, and then the molecular sieve can be restored by regeneration method. The dew point of the compressed air can easily reach -40℃.

[0003] The adsorption dryers currently in use include heatless regenerative dryers, micro-heat regenerative dryers, blast heating regenerative dryers, and compression heat regenerative dryers. Compression heat regenerative dryers are widely used because their operating energy consumption is lower than that of the other three types of dryers.

[0004] When only hot air enters the dryer, a portion of the hot air is directly cooled by the cooler and then enters the adsorption zone in the rotor assembly. The dry air treated in the adsorption zone is ready for use, while the other portion of the hot air needs to first enter the regeneration zone in the rotor assembly for treatment. The treated air is then cooled by the cooler and then enters the adsorption zone for treatment. The treated air is ready for use.

[0005] However, the regeneration zone and adsorption zone in the adsorption assembly of the currently used double-tower compression heat regeneration dryer are usually two separate devices, which makes the rotor assembly too large and occupies a large space;

[0006] In addition, with the long-term use of the adsorption zone, some of the adsorbed water will accumulate at the bottom of the adsorption zone, which not only affects the entry of gas, but also affects the adsorption effect of the adsorption zone, thereby requiring regular maintenance or better, which leads to excessive cost investment. Utility Model Content

[0007] The utility model provides a compression heat regeneration rotary compressed air dryer, which solves the technical problems of the existing double-tower adsorption assembly being large in size and having excessive investment costs, and provides the following technical solutions:

[0008] A heat of compression regeneration rotary compressed air dryer comprises an air inlet pipe, a rotor assembly, and an air outlet pipe. A motor for driving the rotor assembly is provided at the bottom of the rotor assembly. The dryer is characterized in that the rotor assembly comprises a housing, a regeneration zone and an adsorption zone disposed within the housing, and the regeneration zone and the adsorption zone are isolated from each other.

[0009] The air intake pipe includes a first air intake pipe, a second air intake pipe and a third air intake pipe, the first air intake pipe is used to receive hot air, the other end of the first air intake pipe is connected to a cooler, the cooler is connected to the second air intake pipe, the other end of the second air intake pipe is connected to the adsorption zone, one end of the third air intake pipe is connected to the first air intake pipe, and the other end of the third air intake pipe is connected to the regeneration zone or is connected to the regeneration zone through a pipe after being connected to a heater;

[0010] The outlet pipe includes a first outlet pipe and a second outlet pipe, one end of the first outlet pipe is connected to the regeneration zone, the other end of the first outlet pipe is connected to the first inlet pipe, a manual valve is provided on the section of the first inlet pipe between the first outlet pipe and the third inlet pipe, one end of the second outlet pipe is connected to the adsorption zone, and the other end of the second outlet pipe is used to discharge dry air;

[0011] A water separation filter is provided in the shell corresponding to the bottom of the adsorption area, and a first water outlet is provided at the bottom of the shell corresponding to the water separation filter. The first water outlet is connected to a first water outlet pipe.

[0012] By adopting the above technical solution, by arranging the regeneration zone and the adsorption zone in the shell, devices with different functions are concentrated in one device, thereby reducing the volume of the dryer and thus reducing the occupied space;

[0013] By setting up the water separation filter and the water outlet, the water adsorbed in the adsorption zone will accumulate at the bottom of the shell where the water separation filter is located, and the water accumulated in the shell can be discharged regularly through the water inlet, which can ensure the normal use of the adsorption zone, thereby reducing the frequency of maintenance or replacement of the adsorption zone, thereby reducing cost investment;

[0014] Through the setting of the manual valve, the manual valve can be manually adjusted according to the temperature and flow of the air input into the first air inlet pipe, so that part or no hot air enters the cooler for cooling. The cooled air can be used after being treated in the adsorption area. In addition, part or all of the hot air enters the third air inlet pipe. The hot air entering the third air inlet pipe can be heated according to the temperature of the hot air. After the treatment, it enters the regeneration area. The air after treatment in the regeneration area enters the cooler. The air after cooling treatment in the cooler can be used after being treated in the adsorption area. The structure is simple and can be adjusted according to actual production needs, thereby improving the convenience of the device.

[0015] Further, when the third air inlet pipe is connected to a heater, the heater is connected to the regeneration zone through the third air outlet pipe, and the heater is an electric heater.

[0016] Furthermore, the adsorption area has an adsorption area air inlet and an adsorption area air outlet; the adsorption area air inlet is connected to the adsorption area air inlet pipe, and the other end of the adsorption area air inlet pipe is flange-connected to the second air inlet pipe; the adsorption area air outlet is connected to the adsorption area air outlet pipe, and the other end of the adsorption area air outlet pipe is flange-connected to the second air outlet pipe; a first drain valve is provided on the first water outlet pipe.

[0017] Furthermore, the regeneration zone has a regeneration zone air inlet and a regeneration zone air outlet; the regeneration zone air inlet is connected to the regeneration zone air inlet pipe, and the other end of the regeneration zone air inlet pipe is flange-connected to the third air inlet pipe or the third air outlet pipe; the regeneration zone air outlet is connected to the regeneration zone air outlet pipe, and the other end of the regeneration zone air outlet pipe is flange-connected to the first air outlet pipe.

[0018] Furthermore, the cooler is provided with a second water outlet, the second water outlet is connected to a second water outlet pipe, the second water outlet pipe is connected to a drain pipe through a flange, and a second drain valve is provided on the drain pipe; the cooler has a first air inlet and a first air outlet, the first air inlet is connected to a cooler air inlet pipe, the cooler air inlet pipe and the first air inlet pipe are flange-connected, the first air outlet is connected to a cooler air outlet pipe, the cooler air outlet pipe and the second air outlet pipe are flange-connected.

[0019] Furthermore, when the third air inlet pipe is connected to a heater, the heater has a second air inlet and a second air outlet, the second air inlet is connected to the heater air inlet pipe, the heater air inlet pipe and the third air inlet pipe are flange-connected, the second air outlet is connected to the heater air outlet pipe, the heater air outlet pipe and the third air outlet pipe are flange-connected.

[0020] Furthermore, a first temperature sensor and a pressure gauge are provided on the first intake pipe corresponding to the upstream of the connection point between the third intake pipe and the first intake pipe, so that the hot air entering the first intake pipe passes through the first temperature sensor and the pressure gauge and then flows to the third intake pipe and the manual valve respectively; a second temperature sensor is provided on the third outlet pipe, a third temperature sensor is provided on the second intake pipe, and a dew point meter is provided on the second outlet pipe.

[0021] By adopting the above technical solution, the temperature and pressure of the hot air entering the first air inlet pipe can be detected by setting the first sensor and the pressure gauge, and then the hot air treatment plan can be determined according to the temperature and pressure conditions, thereby ensuring that the regeneration area is completely regenerated; by setting the dew point meter, the dew point temperature of the output dry air can be detected, which makes it easier to understand the dew point temperature of the output air and the treatment efficiency of the device.

[0022] In summary, this application has the following beneficial effects:

[0023] 1. By setting up the regeneration zone and adsorption zone in the shell, devices with different functions are concentrated in one device, thereby reducing the volume of the dryer and thus reducing the occupied space;

[0024] By setting up the water separation filter and the water outlet, the water adsorbed in the adsorption zone will accumulate at the bottom of the shell where the water separation filter is located, and the water accumulated in the shell can be discharged regularly through the water inlet, which can ensure the normal use of the adsorption zone, thereby reducing the frequency of maintenance or replacement of the adsorption zone, thereby reducing cost investment;

[0025] By setting the manual valve, the manual valve can be manually adjusted according to the temperature and flow of the air input into the first air inlet pipe, so that part or no hot air enters the cooler for cooling. The cooled air can be used after being treated in the adsorption zone. In addition, part or all of the hot air enters the third air inlet pipe. The hot air entering the third air inlet pipe can be heated or not according to the temperature of the hot air. After the treatment, it enters the regeneration zone. The air after treatment in the regeneration zone enters the cooler. The air cooled by the cooler is then treated in the adsorption zone and can be used. The structure is simple and can be adjusted according to actual production needs, thereby improving the convenience of the device.

[0026] 2. By setting the first sensor and the pressure gauge, the temperature and pressure of the hot air entering the first air inlet pipe can be detected, and then the hot air treatment plan can be determined according to the temperature and pressure conditions, thereby ensuring that the regeneration area is completely regenerated; by setting the dew point meter, the dew point temperature of the output dry air can be detected, which makes it easier to understand the dew point temperature of the output air and the treatment efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the compression heat regeneration rotary compressed air dryer;

[0028] Figure 2 Schematic diagram of Example 1 of the present heat of compression regeneration rotary compressed air dryer;

[0029] Figure 3 Schematic diagram of Example 2 of the present heat of compression regeneration rotary compressed air dryer;

[0030] Figure 4 This is a schematic diagram of the rotor assembly in the heat of compression regeneration rotary compressed air dryer;

[0031] Figure 5 This is a schematic diagram of the cooler in the compression heat regeneration rotary compressed air dryer;

[0032] In the figure: 1. Wheel assembly; 101. Housing; 102. Regeneration zone; 103. Adsorption zone; 2. Motor; 3. First air inlet pipe; 4. Second air inlet pipe; 5. Third air inlet pipe; 6. Cooler; 7. Heater; 8. First air outlet pipe; 9. Second air outlet pipe; 10. Manual valve; 11. Water distribution filter; 12. First water outlet pipe; 13. Third air outlet pipe; 14. Adsorption zone air inlet pipe; 15. Adsorption zone air outlet pipe; 16. First drain valve; 17. Regeneration zone air inlet pipe; 18. Regeneration zone air outlet pipe; 19. Second water outlet pipe; 20. Drain pipe; 21. Second drain valve; 22. Cooler air inlet pipe; 23. Cooler air outlet pipe; 24. Heater air inlet pipe; 25. Heater air outlet pipe; 26. First temperature sensor; 27. Pressure gauge; 28. Second temperature sensor; 29. ​​Third temperature sensor; 30. Fourth temperature sensor; 31. Dew point meter. DETAILED DESCRIPTION

[0033] The present application is further described in detail below with reference to the accompanying drawings.

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0035] Example 1:

[0036] Reference Figure 1-2 4-5, a compression heat regeneration rotary compressed air dryer includes an air inlet pipe, a rotor assembly 1 and an air outlet pipe. A motor 2 for driving the rotor assembly 1 to rotate is provided at the bottom of the rotor assembly 1. The rotor assembly 1 includes a housing 101, a regeneration zone 102 and an adsorption zone 103 provided in the housing 101, and the regeneration zone 102 and the adsorption zone 103 are isolated from each other. An isolation plate is provided between the regeneration zone 102 and the adsorption zone 103. The isolation plate is made of a material that can isolate the regeneration zone 102 and the adsorption zone 103. The two ends of the isolation plate are respectively against the top and the bottom of the housing 101. The specific composition, structure and installation method of the adsorption zone 103 and the regeneration zone 102 belong to the prior art and will not be described in detail here. The adsorbent in the adsorption zone 103 is alumina, molecular sieve or silica gel.

[0037] The air intake pipe includes a first air intake pipe 3, a second air intake pipe 4 and a third air intake pipe 5. The first air intake pipe 3 is used to receive hot air and is connected to other pipes for transmitting hot air through a flange. The other end of the first air intake pipe 3 is connected to a cooler 6, which is connected to the second air intake pipe 4. The other end of the second air intake pipe 4 is connected to the adsorption zone 103. One end of the third air intake pipe 5 is connected to the first air intake pipe 3, and the other end of the third air intake pipe 5 is connected to the regeneration zone 102. The structure and connection method of the cooler 6 belong to the prior art and will not be described in detail here. In this specific embodiment, the cooling medium used to cool the hot air is cooling water.

[0038] The air outlet pipe includes a first air outlet pipe 8 and a second air outlet pipe 9. One end of the first air outlet pipe 8 is connected to the regeneration zone 102, and the other end of the first air outlet pipe 8 is connected to the first air inlet pipe 3. A manual valve 10 is provided on the section of the first air inlet pipe 3 between the first air outlet pipe 8 and the third air inlet pipe 5. One end of the second air outlet pipe 9 is connected to the adsorption zone 103, and the other end of the second air outlet pipe 9 is used to discharge dry air.

[0039] A water diversion filter 11 is provided in the outer shell corresponding to the bottom of the adsorption area 103. The specific installation method of the water diversion filter 11 in the outer shell 101 belongs to the existing technology and will not be elaborated here. In this specific embodiment, the water diversion filter 11 is made of stainless steel, and a first water outlet is provided at the bottom of the outer shell corresponding to the water diversion filter 11, and the first water outlet is connected to the first water outlet pipe 12.

[0040] The regeneration zone 102 and the adsorption zone 103 are integrated into one device, thereby reducing the size of the dryer and thus reducing the space occupied. The water adsorbed by the adsorption zone 103 accumulates at the bottom of the housing where the water separation filter 11 is located, and the water accumulated in the housing can be regularly discharged through the water inlet. This ensures the normal use of the adsorption zone 103, thereby reducing the frequency of maintenance or replacement of the adsorption zone 103, thereby reducing cost investment.

[0041] The manual valve 10 can be manually adjusted according to the temperature and flow of the air input into the first air inlet pipe 3, so that part or no hot air enters the cooler 6 for cooling. The cooled air can be used after being treated in the adsorption area 103. In addition, part or all of the hot air enters the third air inlet pipe 5. The hot air entering the third air inlet pipe 5 can be heated according to the temperature of the hot air. After the treatment, it enters the regeneration area 102. The air after treatment in the regeneration area 102 enters the cooler 6. The air after cooling by the cooler 6 can be used after being treated in the adsorption area 103. The structure is simple and can be adjusted according to actual production needs, thereby improving the convenience of the device.

[0042] As attached Figure 2As shown, the adsorption zone 103 has an adsorption zone 103 air inlet and an adsorption zone 103 air outlet; the adsorption zone 103 air inlet is connected to the regeneration zone air inlet pipe 14, and the other end of the regeneration zone air inlet pipe 14 is flange-connected to the second air inlet pipe 4; the adsorption zone 103 air outlet is connected to the regeneration zone air outlet pipe 15, and the other end of the regeneration zone air outlet pipe 15 is flange-connected to the second air outlet pipe 9; a first drain valve 16 is provided on the first water outlet pipe 12.

[0043] As attached Figure 2 As shown, the regeneration zone 102 has a regeneration zone 102 air inlet and a regeneration zone 102 air outlet; the regeneration zone 102 air inlet is connected to the regeneration zone inlet pipe 17, and the other end of the regeneration zone inlet pipe 17 is flange-connected to the third air inlet pipe 5; the regeneration zone 102 air outlet is connected to the regeneration zone outlet pipe 18, and the other end of the regeneration zone outlet pipe 18 is flange-connected to the first air outlet pipe 8.

[0044] As attached Figure 2 、 4 As shown, a second water outlet is provided on the cooler 6, the second water outlet is connected to a second water outlet pipe 19, the second water outlet pipe 19 is connected to a drain pipe 20 through a flange, and a second drain valve 21 is provided on the drain pipe 20; a first air inlet and a first air outlet are provided on the cooler 6, the first air inlet is connected to a cooler air inlet pipe 22, the cooler air inlet pipe 22 and the first air inlet pipe 3 are flange-connected, the first air outlet is connected to a cooler air outlet pipe 23, and the cooler air outlet pipe 23 and the second air outlet pipe 9 are flange-connected.

[0045] As attached Figure 2 As shown, a first temperature sensor 26 and a pressure gauge 27 are provided on the first air inlet pipe 3 upstream of the connection point between the third air inlet pipe 5 and the first air inlet pipe 3, so that the hot air entering the first air inlet pipe 3 passes through the first temperature sensor 26 and the pressure gauge 27 and then flows to the third air inlet pipe 5 and the manual valve 10 respectively; a third temperature sensor 29 is provided on the first air outlet pipe 8, a fourth temperature sensor 30 is provided on the second air inlet pipe 4, and a dew point meter 31 is provided on the second air outlet pipe 9; the first sensor and the pressure gauge 27 can detect the temperature and pressure of the hot air entering the first air inlet pipe 3, and then determine the hot air treatment plan according to the temperature and pressure conditions, thereby accelerating production efficiency; the dew point meter 31 can detect the dew point temperature of the output dry air, which makes it easier to understand the dew point temperature of the output air and the treatment efficiency of the device.

[0046] Example 2: As shown in the attached Figure 1 、 3-5, the difference between this embodiment and embodiment 1 is that the other end of the third air inlet pipe 5 is connected to a heater 7 and is connected to the regeneration zone 102 through a pipeline. The structure and connection method of the heater 7 are both prior art and will not be described in detail here. A second temperature sensor 28 is provided on the third air outlet pipe 13;

[0047] When the third air inlet pipe 5 is connected to the heater 7, the heater 7 is connected to the regeneration zone 102 through the third air outlet pipe 13. The heater 7 is an electric heater 7. The other end of the regeneration zone air inlet pipe 17 is flange-connected to the third air outlet pipe 13.

[0048] The heater 7 has a second air inlet and a second air outlet. The second air inlet is connected to a heater air inlet pipe 24, which is flange-connected to the third air inlet pipe 5. The second air outlet is connected to a heater air outlet pipe 25, which is flange-connected to the third air outlet pipe 13.

[0049] Operating principle: External hot air is transported to the first air inlet pipe 3 through a pipeline. At this time, the first sensor and pressure gauge 27 on the first air inlet pipe 3 detect the temperature and pressure of the hot air. The detected hot air is transported along the first air inlet pipe 3 to the third air inlet pipe 5 and the cooler 6. At this time, the air flow rate can be adjusted by manually adjusting the manual valve 10. The air entering the cooler 6 is cooled by the cooler 6 and then enters the adsorption zone 103 through the second air inlet pipe 4 and the regeneration zone air inlet pipe 14. After being processed in the adsorption zone 103, it enters the second air outlet pipe 9 through the regeneration zone air outlet pipe 15. The air outlet of the second air outlet pipe 9 is used to output dry air.

[0050] The hot air entering the second air inlet pipe 4 can be heated by the electric heater 7 according to production needs. The heated air or the unheated hot air is directly input into the regeneration zone 102 through the third air outlet pipe 13. After being treated in the regeneration zone 102, it is transported to the cooler 6 through the first air outlet pipe 8. The air entering the cooler 6 is cooled by the cooler 6 and enters the adsorption zone 103 through the second air inlet pipe 4 and the regeneration zone air inlet pipe 14. After being treated in the adsorption zone 103, it enters the second air outlet pipe 9 through the regeneration zone outlet pipe 15. The air outlet of the second air outlet pipe 9 is used to output dry air.

[0051] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0052] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present invention. Those skilled in the art may make various modifications and variations to the present invention based on the spirit and principles of the present invention, and such modifications and variations are also within the scope of the present invention.

Claims

1. A compression heat regeneration rotary compressed air dryer, comprising an air inlet pipe, a rotor assembly and an air outlet pipe, wherein a motor for driving the rotor assembly to rotate is provided at the bottom of the rotor assembly, characterized in that: The wheel assembly includes a housing, a regeneration zone and an adsorption zone arranged in the housing, and the regeneration zone and the adsorption zone are isolated from each other; The air intake pipe includes a first air intake pipe, a second air intake pipe and a third air intake pipe, the first air intake pipe is used to receive hot air, the other end of the first air intake pipe is connected to a cooler, the cooler is connected to the second air intake pipe, the other end of the second air intake pipe is connected to the adsorption zone, one end of the third air intake pipe is connected to the first air intake pipe, and the other end of the third air intake pipe is connected to the regeneration zone or is connected to the regeneration zone through a pipe after being connected to a heater; The outlet pipe includes a first outlet pipe and a second outlet pipe, one end of the first outlet pipe is connected to the regeneration zone, the other end of the first outlet pipe is connected to the first inlet pipe, a manual valve is provided on the section of the first inlet pipe between the first outlet pipe and the third inlet pipe, one end of the second outlet pipe is connected to the adsorption zone, and the other end of the second outlet pipe is used to discharge dry air; A water separation filter is provided in the shell corresponding to the bottom of the adsorption area, and a first water outlet is provided at the bottom of the shell corresponding to the water separation filter. The first water outlet is connected to a first water outlet pipe.

2. The compression heat regeneration rotary compressed air dryer according to claim 1, characterized in that: When the third air inlet pipe is connected to a heater, the heater is connected to the regeneration zone through the third air outlet pipe, and the heater is an electric heater.

3. The compression heat regeneration rotary compressed air dryer according to claim 1, characterized in that: The adsorption zone is provided with an adsorption zone air inlet and an adsorption zone air outlet; The adsorption zone air inlet is connected to an adsorption zone air inlet pipe, and the other end of the adsorption zone air inlet pipe is flange-connected to the second air inlet pipe; The adsorption zone air outlet is connected to an adsorption zone air outlet pipe, and the other end of the adsorption zone air outlet pipe is flange-connected to the second air outlet pipe; The first water outlet pipe is provided with a first drain valve.

4. The compression heat regeneration rotary compressed air dryer according to claim 2, characterized in that: The regeneration zone is provided with a regeneration zone air inlet and a regeneration zone air outlet; The regeneration zone air inlet is connected to a regeneration zone air inlet pipe, and the other end of the regeneration zone air inlet pipe is flange-connected to the third air inlet pipe or the third air outlet pipe; The regeneration zone air outlet is connected to a regeneration zone air outlet pipe, and the other end of the regeneration zone air outlet pipe is flange-connected to the first air outlet pipe.

5. The compression heat regeneration rotary compressed air dryer according to claim 1, characterized in that: The cooler is provided with a second water outlet, the second water outlet is connected to a second water outlet pipe, the second water outlet pipe is connected to a drain pipe through a flange, and a second drain valve is provided on the drain pipe; The cooler has a first air inlet and a first air outlet, the first air inlet is connected to a cooler air inlet pipe, the cooler air inlet pipe and the first air inlet pipe are flange-connected, the first air outlet is connected to a cooler air outlet pipe, the cooler air outlet pipe and the second air outlet pipe are flange-connected.

6. The compression heat regeneration rotary compressed air dryer according to claim 4, characterized in that: When the third air inlet pipe is connected to a heater, the heater has a second air inlet and a second air outlet, the second air inlet is connected to the heater air inlet pipe, the heater air inlet pipe and the third air inlet pipe are flange-connected, the second air outlet is connected to the heater air outlet pipe, the heater air outlet pipe and the third air outlet pipe are flange-connected.

7. The compression heat regeneration rotary compressed air dryer according to claim 2, characterized in that: A first temperature sensor and a pressure gauge are provided on the first intake pipe upstream of the connection point between the third intake pipe and the first intake pipe, so that the hot air entering the first intake pipe passes through the first temperature sensor and the pressure gauge and then flows to the third intake pipe and the manual valve respectively; The third air outlet pipe is provided with a second temperature sensor, the first air outlet pipe is provided with a third temperature sensor, the second air inlet pipe is provided with a fourth temperature sensor, and the second air outlet pipe is provided with a dew point meter.

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