Combined low-dew-point dryer

Abstract

The utility model discloses a combined low-dew-point dryer which comprises an efficient degreaser, a refrigerated dryer, a micro-heat regeneration dryer, an activated carbon filter and precision filters connected to the two ends of the micro-heat regeneration dryer respectively, wherein the efficient degreaser, the refrigerated dryer, the micro-heat regeneration dryer and the activated carbon filter are sequentially connected. The device is characterized in that the activated carbon filter comprises a lower filter shell, an upper filter shell mounted on the lower filter shell, a stop valve mounted between the lower filter shell and the upper filter shell, and an activated carbon filter box detachably mounted in the lower filter shell and the upper filter shell. According to the utility model, the activated carbon filter boxes are arranged in the lower filter shell and the upper filter shell of the activated carbon filter, so that when the activated carbon filter box in any one of the lower filter shell and the upper filter shell needs to be replaced, the other one can be used as a standby for further use, and the normal use of the dryer is ensured; the activated carbon filter box is detachably mounted in the lower filter shell and the upper filter shell, so that the activated carbon filter box is convenient to replace, and the replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low dew point dryers, in particular to a combined low dew point dryer. Background Art

[0002] A low-dew-point combined dryer combines a cold dryer (including some necessary filters) as a pre-treatment device with an adsorption dryer on the same chassis. Both use the cold dryer as pre-treatment equipment, reducing the moisture load entering the adsorption tower to a very low level, helping to achieve a lower dew point for the finished gas. However, in existing technologies, the activated carbon filter in the combined dryer is an integrated structure. When the activated carbon needs to be replaced, the combined dryer must be shut down and can only be resumed after the activated carbon is replaced. Moreover, the activated carbon in the activated carbon filter is placed directly inside the tank, reducing the convenience of replacement. Therefore, a combined low-dew-point dryer is proposed that allows the combined dryer to continue operating while the activated carbon is replaced. Summary of the Invention

[0003] The purpose of the utility model is to solve the above problems and to provide a combined low dew point dryer.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a combined low dew point dryer, comprising a high-efficiency oil remover, a refrigerated dryer, a micro-heat regeneration dryer, an activated carbon filter and precision filters respectively connected at both ends of the micro-heat regeneration dryer; the utility model is characterized in that the activated carbon filter comprises a lower filter housing, an upper filter housing installed on the lower filter housing, a stop valve installed between the lower filter housing and the upper filter housing, and an activated carbon filter cartridge detachably installed in the lower filter housing and the upper filter housing.

[0005] Preferably, the activated carbon filter cartridge is provided with external threads for easy installation in the lower filter housing and the upper filter housing.

[0006] Preferably, the lower filter housing and the upper filter housing are provided with internal threads adapted to the external threads.

[0007] Preferably, the lower filter housing and the upper filter housing are both provided with an air inlet channel and an air outlet channel and valves installed on the air inlet channel and the air outlet channel.

[0008] Preferably, the activated carbon filter cartridge is further provided with a rotating handle for facilitating the rotation of the activated carbon filter cartridge.

[0009] Preferably, the lower filter housing is provided with a plurality of positioning mounting plates for facilitating the positioning and mounting between the upper filter housing and the lower filter housing; and the positioning mounting plates are all provided with positioning through holes.

[0010] As preferred, the upper filter shell is provided with a plurality of positioning screws; the positioning screws are all provided with locking nuts.

[0011] As preferred, the high-efficiency oil remover, the refrigeration dryer, the activated carbon filter and the precision filter are all provided with blowdown pipelines.

[0012] The active carbon filter has the advantages that the active carbon filter boxes are installed in the lower filter shell and the upper filter shell, so that when the active carbon filter boxes in any one of the lower filter shell and the upper filter shell need to be replaced, the other one can be used as a backup to continue to be used, and normal use of the dryer is ensured.

[0013] The active carbon filter boxes are detachably installed in the lower filter shell and the upper filter shell, so that the active carbon filter boxes can be conveniently replaced, and the replacement efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the utility model.

[0015] Figure 2 is a structural schematic view of the active carbon filter of the utility model.

[0016] Figure 3 is a structural schematic view of the upper filter shell of the utility model.

[0017] Figure 4 is a structural schematic view of the lower filter shell of the utility model.

[0018] Figure 5 is a structural schematic view of the active carbon filter box of the utility model.

[0019] Legend: 1, high-efficiency oil remover; 2, refrigeration dryer; 3, micro-heat regeneration dryer; 4, active carbon filter; 401, lower filter shell; 402, upper filter shell; 403, stop valve; 404, active carbon filter box; 405, external thread; 406, internal thread; 407, air inlet channel; 408, air outlet channel; 409, valve; 410, rotating handle; 411, positioning mounting plate; 412, positioning through hole; 413, positioning screw; 414, locking nut; 5, precision filter; 6, blowdown pipeline. DETAILED DESCRIPTION

[0020] The combined low-dew-point dryer will be further described below with reference to the drawings.

[0021] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0022] See attached Figures 1-5 As shown, in this embodiment, a combined low dew point dryer comprises a high-efficiency oil remover 1, a refrigerated dryer 2, a micro-heat regeneration dryer 3, an activated carbon filter 4 and precision filters 5 respectively connected at both ends of the micro-heat regeneration dryer 3; the activated carbon filter 4 comprises a lower filter housing 401, an upper filter housing 402 installed on the lower filter housing 401, a stop valve 403 installed between the lower filter housing 401 and the upper filter housing 402, and an activated carbon filter cartridge 404 detachably installed in the lower filter housing 401 and the upper filter housing 402; the lower filter housing 401 and the upper filter housing 402 are connected to the upper filter housing 402. Seals are installed between the stop valves 403 to seal the lower filter housing 401, the upper filter housing 402 and the stop valve 403; activated carbon filter cartridges 404 are installed in the lower filter housing 401 and the upper filter housing 402 of the activated carbon filter 4, so that when the activated carbon filter cartridge 404 in either the lower filter housing 401 or the upper filter housing 402 needs to be replaced, the other can continue to be used as a spare to ensure the normal use of the dryer; the activated carbon filter cartridge 404 can be detachably installed in the lower filter housing 401 and the upper filter housing 402, thereby facilitating the replacement of the activated carbon filter cartridge 404 and improving the replacement efficiency.

[0023] See attached Figures 1-5 As shown, the activated carbon filter cartridge 404 is provided with an external thread 405 for easy installation in the lower filter housing 401 and the upper filter housing 402; the lower filter housing 401 and the upper filter housing 402 are provided with an internal thread 406 adapted to the external thread 405; the activated carbon filter cartridge 404 is also provided with a rotating handle 410 for driving the activated carbon filter cartridge 404 to rotate; by rotating the rotating handle 410, the rotating handle 410 drives the activated carbon filter cartridge 404 to rotate, so that the external thread 405 on the activated carbon filter cartridge 404 is respectively adapted to the external thread 405 in the lower filter housing 401 and the upper filter housing 402, and can be detachably installed in the lower filter housing 401 and the upper filter housing 402, thereby facilitating the replacement of the activated carbon filter cartridge 404.

[0024] See attached Figure 2As shown, the lower filter housing 401 and the upper filter housing 402 are both provided with an air inlet channel 407 and an air outlet channel 408 and a valve 409 installed on the air inlet channel 407 and the air outlet channel 408; through the air inlet channel 407 and the air outlet channel 408 on the lower filter housing 401 and the upper filter housing 402, air can enter and exit the lower filter housing 401 and the upper filter housing 402, so that the lower filter housing 401 and the upper filter housing 402 can be used separately or as a whole, thereby expanding the scope of use.

[0025] See attached Figures 2-4 As shown, the lower filter housing 401 is provided with several positioning mounting plates 411 for facilitating the positioning and mounting between the upper filter housing 402 and the lower filter housing 401; the positioning mounting plates 411 are each provided with a positioning through hole 412; the upper filter housing 402 is provided with several positioning screws 413; the positioning screws 413 are each installed with a locking nut 414; the positioning rods 413 on the upper filter housing 402 are passed through the positioning through holes 412 of the positioning mounting plates 411 on the lower filter housing 401, and the locking nuts 414 are installed on the positioning screws 413 to lock them, thereby facilitating the positioning connection between the upper filter housing 402 and the lower filter housing 401.

[0026] See attached Figure 1 As shown, the high-efficiency oil remover 1, the refrigerated dryer 2, the activated carbon filter 4 and the precision filter 5 are all provided with a sewage pipe 6.

[0027] During the use of the present invention, the compressed air enters the high-efficiency oil remover 1 to remove the oil in the air, and then enters the refrigeration dryer 2 for drying. The dried air enters the precision filter 5 for filtration. The filtered air enters the micro-heat regeneration dryer 3 for further purification and regeneration of the air. The regenerated gas enters the precision filter 5 for filtration again. The filtered gas enters the activated carbon filter 4 for further adsorption filtration and then is used subsequently.

[0028] During the use of the activated carbon filter 4, the air inlet channel 407 of the lower filter housing 401, the air outlet channel 408 of the upper filter housing 402 and the stop valve 403 can be opened, and the gas can be adsorbed and filtered multiple times to improve the filtering effect. When the activated carbon filter cartridge 404 of the lower filter housing 401 or the upper filter housing 402 needs to be replaced, the stop valve 403 is closed, and at the same time, the air inlet channel 407 and the air outlet channel 408 on the filter housing corresponding to the activated carbon filter cartridge 404 that needs to be replaced are closed, and the air inlet channel 407 and the air outlet channel 408 on the filter housing corresponding to the activated carbon filter cartridge 404 that does not need to be replaced are opened, so that the activated carbon filter 4 can be used normally without waiting for the replacement to be completed before use.

[0029] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A combined low dew point dryer comprising a high-efficiency oil remover (1), a refrigerated dryer (2), a micro-heat regeneration dryer (3), an activated carbon filter (4), and precision filters (5) respectively connected to both ends of the micro-heat regeneration dryer (3); wherein: The activated carbon filter (4) comprises a lower filter housing (401), an upper filter housing (402) mounted on the lower filter housing (401), a stop valve (403) mounted between the lower filter housing (401) and the upper filter housing (402), and an activated carbon filter cartridge (404) detachably mounted in the lower filter housing (401) and the upper filter housing (402).

2. The combined low dew point dryer according to claim 1, characterized in that: The activated carbon filter cartridge (404) is provided with an external thread (405) for facilitating installation in the lower filter housing (401) and the upper filter housing (402).

3. The combined low dew point dryer according to claim 2, characterized in that: The lower filter housing (401) and the upper filter housing (402) are provided with internal threads (406) adapted to the external threads (405).

4. The combined low dew point dryer according to claim 3, characterized in that: The lower filter housing (401) and the upper filter housing (402) are both provided with an air inlet channel (407) and an air outlet channel (408), as well as valves (409) installed on the air inlet channel (407) and the air outlet channel (408).

5. The combined low dew point dryer according to claim 2, characterized in that: The activated carbon filter cartridge (404) is also provided with a rotating handle (410) for facilitating the rotation of the activated carbon filter cartridge (404).

6. The combined low dew point dryer according to claim 1, characterized in that: The lower filter housing (401) is provided with a plurality of positioning mounting plates (411) for facilitating positioning and mounting between the upper filter housing (402) and the lower filter housing (401); each positioning mounting plate (411) is provided with a positioning through hole (412).

7. The combined low dew point dryer according to claim 6, characterized in that: A plurality of positioning rods (413) are provided on the upper filter housing (402); locking nuts (414) are installed on each of the positioning rods (413).

8. The combined low dew point dryer according to claim 1, characterized in that: The high-efficiency oil remover (1), the refrigerated dryer (2), the activated carbon filter (4) and the precision filter (5) are all provided with a sewage discharge pipe (6).

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