Rotating wheel type compressed air dryer

Abstract

The utility model relates to the field of drying machines, in particular to a rotating wheel type compressed air drying machine which comprises a hot air inlet pipeline, a cold air inlet pipeline, a rotating wheel assembly and a driving mechanism. The rotating wheel assembly comprises a shell, and a filtering assembly is arranged at the bottom in the shell and arranged at one end of the bottom in the shell. An adsorption area is arranged in the shell at the top of the filtering assembly, the adsorption area is communicated with the cold air inlet pipeline, the adsorption area is communicated with a dry air output pipe, and a dew-point meter is arranged on the dry air output pipe; the shell corresponding to one side of the adsorption area is provided with a regeneration area, the regeneration area is isolated from the adsorption area through an isolation plate, the regeneration area is communicated with a hot air inlet pipeline or a regeneration air inlet is communicated with the hot air inlet pipeline after being connected with a heater, and the regeneration area is communicated with a cold air inlet pipeline through an air outlet pipeline; by means of the technical scheme, the air purifier has the advantages that the size is reduced, and the cost input is reduced.

Description

Technical Field

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

[0002] Compression heat regeneration dryers are widely used due to their low energy consumption. When hot air and cold air enter the dryer, the cold air is 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 hot air needs to be treated in the regeneration zone in the rotor assembly first. The treated air is then cooled by the cooler and then enters the adsorption zone for treatment. The treated air is ready for use.

[0003] However, the compression heat regeneration dryers currently in use are usually double-tower dryers. The regeneration zone and adsorption zone of the adsorption assembly in such dryers are usually two separate devices, which makes the dryer too large and occupies a large space. In addition, with long-term use, some of the adsorption zone in the existing double-tower adsorption assembly will accumulate at the bottom of the adsorption zone, which will affect the adsorption effect of the adsorption zone and require regular maintenance or replacement, resulting in excessive cost investment. Utility Model Content

[0004] The utility model provides a rotary compressed air dryer, which solves the technical problems of the existing double-tower adsorption assembly being large in size and costly, and provides the following technical solutions:

[0005] A rotary compressed air dryer comprises a hot air inlet pipe, a cold air inlet pipe and a rotary assembly, and is characterized in that it also comprises a driving mechanism for driving the rotary assembly to rotate;

[0006] The wheel assembly includes a housing, a filter assembly is provided at the bottom of the housing, the filter assembly is provided at one end of the bottom of the housing, a drain port is provided at the bottom of the housing corresponding to the filter assembly, the drain port is connected to a first drain pipe, and a first drain valve is provided on the first drain pipe;

[0007] An adsorption area is provided in the shell at the top of the filter assembly, and an adsorption air outlet and an adsorption air inlet are respectively provided at the top and bottom of the shell corresponding to the adsorption area. The adsorption air inlet is connected to the cold air inlet pipeline, and the adsorption air outlet is connected to the dry air output pipe, and the dry air output pipe is provided with a dew point meter;

[0008] A regeneration zone is provided in the shell corresponding to one side of the adsorption zone, and the regeneration zone is isolated from the adsorption zone by an isolation plate, and the two ends of the isolation plate are respectively against the top and bottom of the shell, and the top and bottom of the shell corresponding to the regeneration zone are respectively provided with a regeneration air outlet and a regeneration air inlet, the regeneration air inlet and the hot air inlet pipe are connected, or the regeneration air inlet is connected to the hot air inlet pipe after being connected to a heater, the regeneration air outlet is connected to the cold air inlet pipe through the air outlet pipe, and a cooler is provided on the cold air inlet pipe corresponding to the air outlet pipe and the adsorption zone.

[0009] By adopting the above technical solution, the regeneration zone and the adsorption zone can be effectively isolated by setting the isolation plate, so that the regeneration zone and the adsorption zone will not affect each other. Therefore, the regeneration zone and the adsorption zone can be set in the shell, which will reduce the number of drying towers and further reduce the volume of the dryer, thereby reducing the occupied area of ​​the dryer;

[0010] By setting the first drain valve on the first drain pipe, water can be regularly drained when there is too much water in the adsorption zone, which can ensure that the function of the adsorption zone is not affected, thereby reducing the frequency and difficulty of maintaining the adsorption zone, thereby extending the service life of the adsorption zone and reducing cost investment;

[0011] The external hot air can directly enter the regeneration area for treatment, or it can be heated before entering the regeneration area for treatment. This can be selected according to actual treatment needs. The external cold air enters the cooler through the cold air intake pipe or the air treated in the regeneration area enters the cooler. The cold air is cooled again by the cooler and the treated cold air is transported to the adsorption area for treatment. Dry air can be obtained after treatment in the adsorption area.

[0012] Furthermore, the cold air intake pipe includes a first cold air intake pipe and a second cold air intake pipe, one end of the first cold air intake pipe and the second cold air intake pipe are flange-connected to the cooler, a second drain pipe is flange-connected to the cooler, and a second drain valve is provided on the second drain pipe; the other end of the first cold air intake pipe is used to receive cold air, and a first temperature sensor and a first pressure gauge are provided at the end of the first cold air intake pipe away from the cooler, and the other end of the second cold air intake pipe is flange-connected to the adsorption air inlet.

[0013] By adopting the above technical solution, the temperature and pressure of the cold air before processing are detected by setting the first temperature sensor and the first pressure gauge, and then the cooling power of the cooler can be adjusted according to the temperature of the cold air, avoiding the phenomenon of insufficient cooling or too low temperature after cooling, thereby improving the production efficiency of the dryer.

[0014] Furthermore, the hot air intake pipe includes a first hot air intake pipe and a second hot air intake pipe; one end of the first hot air intake pipe is used to receive hot air, and the other end of the first hot air intake pipe is connected to the heater and then connected to the second hot air intake pipe, or the other end of the first hot air intake pipe is connected to the second hot air intake pipe; a manual valve is provided at the end of the first hot air intake pipe away from the second hot air intake pipe, a second temperature sensor and a second pressure gauge are provided at the end of the first hot air intake pipe close to the second hot air intake pipe, and the other end of the second hot air intake pipe is flange-connected to the regeneration air inlet.

[0015] By adopting the above technical solution, through the provision of a second temperature sensor and a second pressure gauge, the temperature and pressure of the hot air are detected before it enters the dryer for processing. According to the temperature of the input hot air, it is selected whether to use a heater for heating operation, so as to improve the subsequent processing efficiency of the hot air in the regeneration zone.

[0016] Furthermore, the outlet pipeline includes an outlet pipe, one end of which is flange-connected to the regeneration outlet, and the other end of the outlet pipe is connected to an end of the first cold air inlet pipe close to the cooler, and a third temperature sensor is provided on the outlet pipe.

[0017] Furthermore, a fourth temperature sensor is provided on the second cold air inlet pipe.

[0018] Furthermore, a fifth temperature sensor is provided on the second hot air intake pipe.

[0019] Furthermore, the driving mechanism includes a motor.

[0020] In summary, this application has the following beneficial effects:

[0021] 1. The isolation plate can effectively isolate the regeneration zone and the adsorption zone, which prevents the regeneration zone and the adsorption zone from affecting each other. Therefore, the regeneration zone and the adsorption zone can be set in the shell, which will reduce the number of drying towers, thereby reducing the volume of the dryer and reducing the occupied area of ​​the dryer;

[0022] By setting the first drain valve on the first drain pipe, water can be regularly drained when there is too much water in the adsorption zone, which can ensure that the function of the adsorption zone is not affected, thereby reducing the frequency and difficulty of maintaining the adsorption zone, thereby extending the service life of the adsorption zone and reducing cost investment;

[0023] The external hot air can be directly sent to the regeneration zone for treatment, or it can be heated before entering the regeneration zone for treatment. This can be selected according to the actual treatment needs. The external cold air enters the cooler through the cold air intake pipe or the air treated in the regeneration zone enters the cooler. The cooler cools the cold air again and the treated cold air is transported to the adsorption zone for treatment. Dry air can be obtained after treatment in the adsorption zone.

[0024] 2. The first temperature sensor and the first pressure gauge are set to detect the temperature and pressure of the cold air before treatment, and then the cooling power of the cooler can be adjusted according to the temperature of the cold air to avoid insufficient cooling or too low temperature after cooling, thereby improving the production efficiency of the dryer;

[0025] 3. By setting up the second temperature sensor and the second pressure gauge, the temperature and pressure of the hot air are detected before it enters the dryer for processing. According to the temperature of the input hot air, it is determined whether the heater needs to be used for heating, so as to improve the subsequent hot air processing efficiency in the regeneration area. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the rotary compressed air dryer;

[0027] Figure 2 This is a connection diagram of Example 1 of the rotary compressed air dryer;

[0028] Figure 3 This is a connection diagram of Example 2 of the rotary compressed air dryer;

[0029] Figure 4 This is a schematic diagram of the rotor assembly in the rotary compressed air dryer;

[0030] Figure 5 This is a schematic diagram of the cooler in the rotary compressed air dryer;

[0031] In the figure: 1. drive mechanism; 2. housing; 3. filter assembly; 4. first drain pipe; 5. first drain valve; 6. adsorption zone; 7. dry gas output pipe; 8. dew point meter; 9. regeneration zone; 10. isolation plate; 11. heater; 12. air outlet pipe; 13. cooler; 14. first cold air inlet pipe; 15. second cold air inlet pipe; 16. second drain pipe; 17. second drain valve; 18. first temperature sensor; 19. first pressure gauge; 20. first hot air inlet pipe; 21. second hot air inlet pipe; 22. manual valve; 23. second temperature sensor; 24. second pressure gauge; 25. third temperature sensor; 26. fourth temperature sensor; 27. fifth temperature sensor. DETAILED DESCRIPTION

[0032] The present application is further described in detail below with reference to the accompanying drawings.

[0033] 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.

[0034] Example 1:

[0035] As attached Figure 1-2 4-5, a rotary compressed air dryer includes a hot air inlet pipeline, a cold air inlet pipeline and a rotor assembly. The rotary compressed air dryer also includes a drive mechanism 1 for driving the rotor assembly to rotate, and the drive mechanism 1 includes a motor;

[0036] The runner assembly includes a housing 2, which is a pressure vessel. A filter assembly 3 is provided at the bottom of the housing 2. The filter assembly 3 is arranged at one end of the bottom of the housing 2. In this specific embodiment, the filter assembly 3 uses a stainless steel filter screen. The specific installation structure of the filter screen belongs to the prior art and will not be described in detail here. A drain outlet is provided at the bottom of the housing 2 corresponding to the filter assembly 3. The drain outlet is connected to a first drain pipe 4. A first drain valve 5 is provided on the first drain pipe 4.

[0037] An adsorption zone 6 is provided in the housing 2 at the top of the filter assembly 3. The adsorbent in the adsorption zone 6 is selected from alumina, molecular sieve, silica gel, or other materials capable of adsorbing moisture in the air. An adsorption air outlet and an adsorption air inlet are provided at the top and bottom of the housing 2 corresponding to the adsorption zone 6, respectively. The adsorption air inlet is connected to the cold air inlet pipeline. The adsorption air outlet is connected to a dry air output pipe 7, and a dew point meter 8 is provided on the dry air output pipe 7.

[0038] A regeneration zone 9 is provided in the shell 2 corresponding to one side of the adsorption zone 6, and the regeneration zone 9 is isolated from the adsorption zone 6 by an isolation plate 10. The two ends of the isolation plate 10 are respectively against the top and bottom of the shell 2. In this specific embodiment, the isolation plate 10 is made of PVC material, and the top and bottom of the shell 2 corresponding to the regeneration zone 9 are respectively provided with a regeneration air outlet and a regeneration air inlet. The regeneration air inlet is connected to the hot air inlet pipeline, and the regeneration air outlet is connected to the cold air inlet pipeline through the outlet pipeline 12. A cooler 13 is provided on the cold air inlet pipeline corresponding to the outlet pipeline 12 and the adsorption zone 6. In this specific embodiment, the coolant in the cooler 13 is cooling water.

[0039] The isolation plate 10 can effectively isolate the regeneration zone 9 from the adsorption zone 6, so that the regeneration zone 9 and the adsorption zone 6 do not affect each other. Therefore, the regeneration zone 9 and the adsorption zone 6 can be arranged in the shell 2, which will reduce the number of drying towers and further reduce the volume of the dryer, thereby reducing the occupied area of ​​the dryer;

[0040] When there is too much water in the adsorption area 6, the first drain valve 5 can be opened regularly to drain the water. This can ensure that the function of the adsorption area 6 is not affected, thereby reducing the frequency and difficulty of maintaining the adsorption area 6, thereby extending the service life of the adsorption area 6 and reducing cost investment;

[0041] The external hot air (≥100°C) can be directly sent to the regeneration zone 9 for treatment, or it can be heated before entering the regeneration zone 9 for treatment. This can be selected according to the actual treatment requirements. The air coming out of the regeneration zone 9 (temperature ≥75°C) enters the cooler 13 for cooling treatment.

[0042] External cold air (≤50°C) enters the cooler 13 through the cold air intake pipe, and is cooled again by the cooler 13. The treated cold air (≤38°C) is transported to the adsorption area 6 for treatment. After treatment in the adsorption area 6, dry air can be obtained. Before the dry air is discharged, its dew point temperature will be detected by the dew point meter 8.

[0043] As attached Figure 2 As shown, the cold air intake pipe includes a first cold air intake pipe 14 and a second cold air intake pipe 15, one end of the first cold air intake pipe 14 and the second cold air intake pipe 15 are flange-connected to the cooler 13, a second drain pipe 16 is flange-connected to the cooler 13, and a second drain valve 17 is provided on the second drain pipe 16; the other end of the first cold air intake pipe 14 is used to receive cold air, and a first temperature sensor 18 and a first pressure gauge 19 are provided at the end of the first cold air intake pipe 14 away from the cooler 13, the other end of the second cold air intake pipe 15 is flange-connected to the adsorption air inlet, and a fourth temperature sensor 26 is provided on the second cold air intake pipe 15; after the cold air enters the pipeline, its temperature and pressure are first detected by the first temperature sensor 18 and the first pressure gauge 19, and then the cooling power of the cooler 13 can be adjusted according to the temperature and pressure of the cold air to avoid insufficient cooling or too low temperature after cooling, thereby improving the production efficiency of the dryer.

[0044] As attached Figure 2As shown, the hot air intake pipe includes a first hot air intake pipe 20 and a second hot air intake pipe 21; one end of the first hot air intake pipe 20 is used to receive hot air, and the other end of the first hot air intake pipe 20 is connected to the second hot air intake pipe 21; a manual valve 22 is provided at the end of the first hot air intake pipe 20 away from the second hot air intake pipe 21, and a second temperature sensor 23 and a second pressure gauge 24 are provided at the end of the first hot air intake pipe 20 close to the second hot air intake pipe 21. The other end of the second hot air intake pipe 21 is flange-connected to the regeneration air inlet, and a fifth temperature sensor 27 is provided on the second hot air intake pipe 21; before the hot air enters the regeneration zone 9 for treatment, the temperature and pressure of the hot air will be detected by the second temperature sensor 23 and the second pressure gauge 24. According to the temperature of the input hot air, it is selected whether it is necessary to adjust the flow rate of air through the manual valve 22 to improve the subsequent hot air processing efficiency in the regeneration zone 9.

[0045] As attached Figure 2 As shown, the outlet pipe 12 includes an outlet pipe, one end of which is flange-connected to the regeneration outlet, and the other end of the outlet pipe is connected to the end of the first cold air inlet pipe 14 close to the cooler 13. A third temperature sensor 25 is provided on the outlet pipe.

[0046] Example 2:

[0047] As attached Figure 1 、 3 -5, the difference between this embodiment and embodiment 1 is that: the regeneration air inlet is connected to the heater 11 and is connected to the hot air inlet pipe; the other end of the first hot air inlet pipe 20 is connected to the heater 11 and is connected to the second hot air inlet pipe 21. In this specific embodiment, the heater 11 is an electric heater 11. The specific structure of the electric heater 11 belongs to the existing technology and will not be described in detail here. The electric heater 11 can be selected from a model that can heat hot air;

[0048] Working process: Cold air enters the first cold air inlet pipe 14, where the temperature and pressure are detected by the first temperature sensor 18 and the first pressure gauge 19. After the detection, the cold air enters the cooler 13 for cooling treatment. After the treatment, the cold air enters the adsorption area 6 through the second cold air inlet pipe 15. After being treated in the adsorption area 6, dry air is obtained. The dry air is output through the dry air output pipe 7, and its dew point temperature is detected by the dew point meter 8 before output.

[0049] The hot air enters the first hot air inlet pipe 20, where the temperature and pressure are detected by the second temperature sensor 23 and the second pressure gauge 24. After the detection, the hot air can be directly transported to the regeneration zone 9 for treatment, or the hot air can be input into the heater 11 for heating and then transported to the regeneration zone 9 for treatment. The air treated in the regeneration zone 9 enters the first cold air inlet pipe 14 along the air outlet pipe, and then transported to the cooler 13 for cooling. The cooled air is then treated in the adsorption zone 6 and output as dry air.

[0050] During the process of the adsorption zone 6 adsorbing moisture in the air, the first drain valve 5 can be opened periodically to drain the water accumulated in the wheel assembly.

[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 rotary compressed air dryer, comprising a hot air inlet pipe, a cold air inlet pipe and a rotary assembly, characterized in that: Also included is a driving mechanism for driving the runner assembly to rotate; The wheel assembly includes a housing, a filter assembly is provided at the bottom of the housing, the filter assembly is provided at one end of the bottom of the housing, a drain port is provided at the bottom of the housing corresponding to the filter assembly, the drain port is connected to a first drain pipe, and a first drain valve is provided on the first drain pipe; An adsorption area is provided in the shell at the top of the filter assembly, and an adsorption air outlet and an adsorption air inlet are respectively provided at the top and bottom of the shell corresponding to the adsorption area. The adsorption air inlet is connected to the cold air inlet pipeline, and the adsorption air outlet is connected to the dry air output pipe, and the dry air output pipe is provided with a dew point meter; A regeneration zone is provided in the shell corresponding to one side of the adsorption zone, and the regeneration zone is isolated from the adsorption zone by an isolation plate, and the two ends of the isolation plate are respectively against the top and bottom of the shell, and the top and bottom of the shell corresponding to the regeneration zone are respectively provided with a regeneration air outlet and a regeneration air inlet, the regeneration air inlet and the hot air inlet pipe are connected, or the regeneration air inlet is connected to the hot air inlet pipe after being connected to a heater, the regeneration air outlet is connected to the cold air inlet pipe through the air outlet pipe, and a cooler is provided on the cold air inlet pipe corresponding to the air outlet pipe and the adsorption zone.

2. The rotary compressed air dryer according to claim 1, characterized in that: The cold air intake pipeline includes a first cold air intake pipe and a second cold air intake pipe, one end of each of the first cold air intake pipe and the second cold air intake pipe is flange-connected to the cooler, a second drain pipe is flange-connected to the cooler, and a second drain valve is provided on the second drain pipe; The other end of the first cold air intake pipe is used to receive cold air. A first temperature sensor and a first pressure gauge are provided at one end of the first cold air intake pipe away from the cooler. The other end of the second cold air intake pipe is flange-connected to the adsorption air inlet.

3. The rotary compressed air dryer according to claim 1, characterized in that: The hot air intake pipeline includes a first hot air intake pipe and a second hot air intake pipe; One end of the first hot air intake pipe is used to receive hot air, and the other end of the first hot air intake pipe is connected to the heater and then connected to the second hot air intake pipe, or the other end of the first hot air intake pipe is connected to the second hot air intake pipe; A manual valve is provided at one end of the first hot air intake pipe away from the second hot air intake pipe, a second temperature sensor and a second pressure gauge are provided at one end of the first hot air intake pipe close to the second hot air intake pipe, and the other end of the second hot air intake pipe is flange-connected to the regeneration air inlet.

4. The rotary compressed air dryer according to claim 2, characterized in that: The air outlet pipeline includes an air outlet pipe, one end of the air outlet pipe is flange-connected to the regeneration outlet, the other end of the air outlet pipe is connected to the end of the first cold air inlet pipe close to the cooler, and a third temperature sensor is provided on the air outlet pipe.

5. The rotary compressed air dryer according to claim 2, characterized in that: A fourth temperature sensor is provided on the second cold air inlet pipe.

6. The rotary compressed air dryer according to claim 3, characterized in that: A fifth temperature sensor is provided on the second hot air intake pipe.

7. The rotary compressed air dryer according to claim 1, characterized in that: The driving mechanism includes a motor.

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