Rotary dehumidifier with dedusting and filtering functions

Abstract

The utility model discloses a rotating wheel dehumidifier with dedusting and filtering functions. The rotating wheel dehumidifier comprises a front rotating wheel dehumidification unit, a dedusting and filtering unit, a medium efficiency filter and a rear rotating wheel dehumidification unit, the front rotating wheel dehumidification unit is used for dehumidifying fresh air, and the fresh air sequentially flows through the front rotating wheel dehumidification unit, the medium efficiency filter and the rear rotating wheel dehumidification unit and then is discharged; and the dust removal filtering unit is used for dust removal filtering of return air, and the return air sequentially flows through the dust removal filtering unit, the medium-efficiency filter and the rear rotating wheel dehumidification unit and then is discharged. The dedusting and filtering unit is additionally arranged in front of the medium-efficiency filter, dust with the particle size larger than or equal to 0.3 micrometer is almost completely removed from return air with the large dust amount in a pulse dedusting and filtering mode, the medium-efficiency filter and the rear rotating wheel at the rear end of the dehumidifier unit are in the normal working state all the time, filth blockage is avoided, and the service life of the dehumidifier unit is prolonged. The service life of the medium-efficiency filter is prolonged, and the cleanliness and the moisture absorption effect of the rear rotating wheel are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary dehumidifiers, in particular to a rotary dehumidifier with dust removal and filtration. Background Art

[0002] Lithium battery positive electrode material production workshops have special requirements for temperature and humidity, and generally use rotary dehumidifiers to control the temperature and humidity in the production workshop. However, there is a lot of dust in the production workshop, and the dust returns to the dehumidifier through the return air duct, which will make the medium-efficiency filter and the rotor of the dehumidifier dirty and clogged, reducing the service life of the medium-efficiency filter. In severe cases, it will also reduce the processing capacity of the rotor.

[0003] In the prior art, a filter is generally added before entering the rotary dehumidifier, but it cannot solve the problem of dirt and blockage, it can only play a mitigating role. Over time, it will still cause the medium-efficiency filter and the rotary wheel to become dirty and blocked, the dehumidification effect cannot be achieved, and the temperature and humidity of the factory are affected, thereby affecting the production of products. Utility Model Content

[0004] In order to address the deficiencies in the prior art, the utility model provides a rotary dehumidifier with built-in dust removal and filtration. A dust removal and filtration unit is added before the medium-efficiency filtration unit. The return air with a large amount of dust is almost completely removed by pulse dust removal and filtration, so that the dust with a particle size ≥ 0.3um is kept in normal working condition at all times without dirt and blockage, thereby increasing the service life of the medium-efficiency filter, ensuring the cleanliness of the rear wheel and the moisture absorption effect of the rear wheel; and the dust adsorbed by the dust removal and filtration unit will be automatically cleaned, and the dust can be adsorbed continuously.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A rotary dehumidifier with built-in dust removal and filtration, comprising a front rotary dehumidification unit, a dust removal and filtration unit, a medium-efficiency filter, and a rear rotary dehumidification unit; the front rotary dehumidification unit is used for dehumidifying fresh air, and the fresh air flows through the front rotary dehumidification unit, the medium-efficiency filter, and the rear rotary dehumidification unit in sequence before being discharged; the dust removal and filtration unit is used for dust removal and filtration of return air, and the return air flows through the dust removal and filtration unit, the medium-efficiency filter, and the rear rotary dehumidification unit in sequence before being discharged.

[0007] The dust removal and filtration unit includes a dust filter barrel, a dust collection barrel, a pressurized fan, and a back-blowing fan. A plurality of filter bags are arranged in the dust filter barrel for dust removal and filtration of return air; the air inlet end of the dust filter barrel is connected with the return air inlet, the air outlet end of the dust filter barrel is connected with the air inlet end of the pressurized fan, and the air outlet end of the pressurized fan is connected with the air inlet end of the medium efficiency filter; the dust collection barrel is located at the bottom of the dust filter barrel and is connected thereto for collecting dust; the back-blowing fan is connected with the filter bag of the dust filter barrel for backblowing the filter bag.

[0008] The dust filter barrel comprises a barrel body with openings on both the upper and lower sides, a detachable upper end cover is arranged on the top of the barrel body, a plurality of through holes adapted to filter bags are arranged on the upper end cover, a lower end cover is arranged on the bottom of the barrel body, and a dust discharge port is arranged on the lower end cover.

[0009] The upper end of the filter cloth bag is an open structure and is provided with an upper limit piece; the lower end of the filter cloth bag is a closed structure and is provided with a lower limit piece; the diameter of the upper limit piece is larger than the diameter of the through hole of the upper end cover, and the diameter of the lower limit piece is smaller than the diameter of the through hole of the upper end cover.

[0010] The lower end cover is provided with a plurality of mounting holes adapted to the lower limiting member.

[0011] The dust filter barrels of the dust removal and filtering unit are arranged in multiple groups.

[0012] The front rotary wheel dehumidification unit includes a front surface cooler, a front rotary wheel, and a front rotary wheel regeneration heater. The front rotary wheel has a front rotary wheel dehumidification zone and a front rotary wheel regeneration zone. The air inlet end and the air outlet end of the front rotary wheel dehumidification zone are respectively connected to the air outlet end of the front surface cooler and the air inlet end of the medium efficiency filter. The air inlet end of the front rotary wheel regeneration zone is connected to the air outlet end of the front rotary wheel regeneration heater.

[0013] The rear wheel dehumidification unit includes a middle surface cooler, a rear wheel, a rear surface cooler, and a rear wheel regeneration heater. The rear wheel has a rear wheel dehumidification zone and a rear wheel regeneration zone. The air inlet end of the middle surface cooler is connected to the air outlet end of the medium efficiency filter, and the air inlet end and the air outlet end of the rear wheel dehumidification zone are respectively connected to the air outlet end of the middle surface cooler and the air inlet end of the rear surface cooler, and the air inlet end of the rear wheel regeneration zone is connected to the air outlet end of the rear wheel regeneration heater.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model provides a rotary dehumidifier with built-in dust removal and filtration. A dust removal and filtration unit is added before the medium-efficiency filtration unit. The return air with a large amount of dust is almost completely removed by pulse dust removal and filtration, so that the dust with a particle size ≥ 0.3um is almost completely removed, so that the medium-efficiency filter and the rear rotor at the rear end of the dehumidifier unit are always in normal working condition without dirt and blockage, thereby increasing the service life of the medium-efficiency filter, ensuring the cleanliness of the rear rotor and the moisture absorption effect of the rear rotor.

[0016] 2. The dust adsorbed by the dust removal and filtering unit of the utility model will be automatically cleaned and can continuously adsorb dust to ensure the normal operation of the dehumidifier, the temperature and humidity environment of the workshop, and the production of production equipment and products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0018] Attached Figure 2 It is a structural schematic diagram of the dust removal and filtering unit of the utility model.

[0019] Numbers shown in the accompanying drawings: 1. front rotor dehumidification unit; 11. front surface cooler; 12. front rotor; 121. front rotor dehumidification zone; 122. front rotor regeneration zone; 13. front rotor regeneration heater; 14. fresh air inlet; 2. dust removal and filtration unit; 21. dust filter barrel; 211. barrel body; 212. upper end cover; 213. lower end cover; 214. through hole; 215. dust discharge port; 22. dust collection barrel; 23. pressurized fan; 24. back blower; 25. filter bag; 26. upper limit member; 27. lower limit member; 3. medium efficiency filter; 4. rear rotor dehumidification unit; 41. medium surface cooler; 42. rear rotor; 421. rear rotor dehumidification zone; 422. rear rotor regeneration zone; 43. rear surface cooler; 44. rear rotor regeneration heater. DETAILED DESCRIPTION

[0020] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the present application.

[0021] The utility model provides a rotary dehumidifier with dust removal and filtration, comprising a front rotary dehumidification unit 1, a dust removal and filtration unit 2, a medium efficiency filter 3, and a rear rotary dehumidification unit 4.

[0022] The front rotary dehumidification unit 1 is used for dehumidifying fresh air, and the fresh air flows through the front rotary dehumidification unit 1, the medium efficiency filter 3, and the rear rotary dehumidification unit 4 in sequence and is then discharged.

[0023] The dust removal and filtering unit 2 is used for dust removal and filtering of return air, and the return air flows through the dust removal and filtering unit 2, the medium efficiency filter 3, and the rear rotary dehumidification unit 4 in sequence and then is discharged.

[0024] The dust removal and filtration unit 2 includes a dust filter barrel 21, a dust collection barrel 22, a pressurized fan 23, and a back-blowing fan 24. A plurality of filter bags 25 are arranged in the dust filter barrel 21 for dust removal and filtration of return air. The air inlet end of the dust filter barrel 21 is connected to the inlet of the return air, the air outlet end of the dust filter barrel 21 is connected to the air inlet end of the pressurized fan 23, and the air outlet end of the pressurized fan 23 is connected to the air inlet end of the medium efficiency filter 3. The dust collection barrel 22 is located at the bottom of the dust filter barrel 21 and is connected thereto for collecting dust. The back-blowing fan 24 is connected to the filter bag 25 of the dust filter barrel 21 for back-blowing the filter bag 25. The back-blowing fan 24 can be turned on regularly to back-blow the filter bag 25 to restore the dust removal function of the filter bag 25 and avoid affecting the dust removal and filtration.

[0025] The dry and clean air discharged from the rear rotary dehumidification unit 4 of the utility model enters the workshop; the return air with dust in the workshop enters the dust removal and filtering unit 2, and most of the dust can be filtered out after being filtered by the dust filter barrel 21, so that the airflow flowing to the medium efficiency filter 3 is cleaner, which is conducive to reducing the attachment of impurities to the medium efficiency filter 3. The airflow further filtered by the medium efficiency filter 3 enters the rear rotary dehumidification unit 4 for dehumidification, and the clean and dry return air formed re-enters the workshop. At the same time, the external air, that is, the fresh air, also enters the workshop after passing through the front rotary dehumidification unit 1, the medium efficiency filter 3, and the rear rotary dehumidification unit 4, so that the workshop not only has the circulation of internal airflow, but also the introduction of fresh air.

[0026] Furthermore, the dust filter barrel 21 comprises a barrel body 211 with openings on both the upper and lower sides, and a detachable upper end cover 212 is provided on the top of the barrel body 211. The upper end cover 212 is provided with a plurality of through holes 214 adapted to the filter bag 25, and a lower end cover 213 is provided at the bottom of the barrel body 211, and a dust discharge port 215 is provided on the lower end cover 213.

[0027] Furthermore, the upper end of the filter bag 25 is an open structure, and an upper limiter 26 is provided; the lower end of the filter bag 25 is a closed structure, and a lower limiter 27 is provided. The diameter of the upper limiter 26 is larger than the diameter of the through hole 214 on the upper end cover 212, and it plays a role in limiting the filter bag 25 to prevent the filter bag 25 from falling. The diameter of the lower limiter 27 is smaller than the diameter of the through hole 214 on the upper end cover 212, which facilitates the removal of the filter bag 25, so that the filter bag 25 can be replaced.

[0028] In this embodiment, the return air containing dust in the workshop enters the dust filter barrel 21, and the dust is blocked outside the filter bag 25. The rod diameter return air after filtering flows out from the opening at the upper end of the filter bag 25, and enters the medium efficiency filter 3 through the booster fan 23, thereby filtering the return air containing dust.

[0029] The lower end cover 213 is provided with a plurality of mounting holes adapted to the lower stopper 27 , so as to facilitate the positioning and installation of the filter bag 25 .

[0030] Furthermore, the dust filter barrels 21 of the dust removal and filtering unit 2 are arranged into multiple groups, and the back-blowing blowers 24 of different dust filter barrels 21 can be turned on at different times. When the back-blowing blowers 24 of one group of dust filter barrels 21 are turned on, the other dust filter barrels 21 work normally, thereby not affecting the dust removal and filtering.

[0031] Furthermore, the front rotary dehumidification unit 1 includes a front surface cooler 11, a front rotary wheel 12, and a front rotary wheel regeneration heater 13. The front rotary wheel 12 has a front rotary wheel dehumidification zone 121 and a front rotary wheel regeneration zone 122. The air inlet end and the air outlet end of the front rotary wheel dehumidification zone 121 are respectively connected to the air outlet end of the front surface cooler 11 and the air inlet end of the medium efficiency filter 3, and the air inlet end of the front rotary wheel regeneration zone 122 is connected to the air outlet end of the front rotary wheel regeneration heater 13.

[0032] Specifically, in this embodiment, the air inlet end of the front surface cooler 11 can be connected to the outdoor air, i.e., the fresh air, through the fresh air inlet 14. After the fresh air is cooled by the front surface cooler 11, it is dehumidified by the front rotor dehumidification zone 121, and then flows through the medium efficiency filter 3 for filtration, so that the fresh air flowing to the rear rotor dehumidification unit 4 is cleaner, and finally discharged to the workshop through the exhaust duct. The air inlet end of the front rotor regeneration heater 13 can be connected to the outdoor air through a pipeline. After the outdoor air is heated by the front rotor regeneration heater 13, it flows through the front rotor regeneration zone 122, takes away the water vapor, and restores the dehumidification function of the front rotor 12.

[0033] Furthermore, the rear wheel dehumidification unit 4 includes a middle surface cooler 41, a rear wheel 42, a rear surface cooler 43, and a rear wheel regeneration heater 44, and the rear wheel 42 has a rear wheel dehumidification zone 421 and a rear wheel regeneration zone 422; the air inlet end of the middle surface cooler 41 is connected to the air outlet end of the medium efficiency filter 3, and the air inlet end and the air outlet end of the rear wheel dehumidification zone 421 are respectively connected to the air outlet end of the middle surface cooler 41 and the air inlet end of the rear surface cooler 43, and the air inlet end of the rear wheel regeneration zone 422 is connected to the air outlet end of the rear wheel regeneration heater 44.

[0034] Specifically, in this embodiment, the fresh air and return air flowing out of the medium efficiency filter 3 are cooled by the middle surface cooler 41, and then enter the rear rotor dehumidification zone 421 for dehumidification, and then are cooled by the rear surface cooler 43, and are discharged into the workshop after reaching the appropriate temperature of the workshop. The air inlet end of the rear rotor regeneration heater 44 can be connected to the outdoor air through a pipeline. The outdoor air is heated by the rear rotor regeneration heater 44 and flows through the rear rotor regeneration zone 422, taking away the water vapor, so that the rear rotor 42 resumes the dehumidification function.

Claims

1. A rotary dehumidifier with built-in dust removal and filtration, characterized in that: It includes a front rotary dehumidification unit, a dust removal and filtration unit, a medium efficiency filter, and a rear rotary dehumidification unit; The front rotor dehumidification unit is used for dehumidifying fresh air, and the fresh air flows through the front rotor dehumidification unit, the medium efficiency filter, and the rear rotor dehumidification unit in sequence before being discharged; The dust removal and filtering unit is used for dust removal and filtering of return air, and the return air flows through the dust removal and filtering unit, the medium efficiency filter, and the rear rotor dehumidification unit in sequence before being discharged; The dust removal and filtration unit includes a dust filter barrel, a dust collection barrel, a pressurized fan, and a back-blowing fan. A plurality of filter bags are arranged in the dust filter barrel for dust removal and filtration of return air; the air inlet end of the dust filter barrel is connected with the return air inlet, the air outlet end of the dust filter barrel is connected with the air inlet end of the pressurized fan, and the air outlet end of the pressurized fan is connected with the air inlet end of the medium efficiency filter; the dust collection barrel is located at the bottom of the dust filter barrel and is connected thereto for collecting dust; the back-blowing fan is connected with the filter bag of the dust filter barrel for backblowing the filter bag.

2. A rotary dehumidifier with built-in dust removal and filtration according to claim 1, characterized in that: The dust filter barrel comprises a barrel body with openings on both the upper and lower sides, a detachable upper end cover is arranged on the top of the barrel body, a plurality of through holes adapted to filter bags are arranged on the upper end cover, a lower end cover is arranged on the bottom of the barrel body, and a dust discharge port is arranged on the lower end cover.

3. A rotary dehumidifier with built-in dust removal and filtration according to claim 2, characterized in that: The upper end of the filter cloth bag is an open structure and is provided with an upper limit piece; the lower end of the filter cloth bag is a closed structure and is provided with a lower limit piece; the diameter of the upper limit piece is larger than the diameter of the through hole of the upper end cover, and the diameter of the lower limit piece is smaller than the diameter of the through hole of the upper end cover.

4. A rotary dehumidifier with built-in dust removal and filtration according to claim 3, characterized in that: The lower end cover is provided with a plurality of mounting holes adapted to the lower limiting member.

5. A rotary dehumidifier with built-in dust removal and filtration according to claim 1, characterized in that: The dust filter barrels of the dust removal and filtering unit are arranged in multiple groups.

6. A rotary dehumidifier with built-in dust removal and filtration according to claim 1, characterized in that: The front rotary wheel dehumidification unit includes a front surface cooler, a front rotary wheel, and a front rotary wheel regeneration heater. The front rotary wheel has a front rotary wheel dehumidification zone and a front rotary wheel regeneration zone. The air inlet end and the air outlet end of the front rotary wheel dehumidification zone are respectively connected to the air outlet end of the front surface cooler and the air inlet end of the medium efficiency filter. The air inlet end of the front rotary wheel regeneration zone is connected to the air outlet end of the front rotary wheel regeneration heater.

7. A rotary dehumidifier with built-in dust removal and filtration according to claim 1, characterized in that: The rear wheel dehumidification unit includes a middle surface cooler, a rear wheel, a rear surface cooler, and a rear wheel regeneration heater. The rear wheel has a rear wheel dehumidification zone and a rear wheel regeneration zone. The air inlet end of the middle surface cooler is connected to the air outlet end of the medium efficiency filter, and the air inlet end and the air outlet end of the rear wheel dehumidification zone are respectively connected to the air outlet end of the middle surface cooler and the air inlet end of the rear surface cooler, and the air inlet end of the rear wheel regeneration zone is connected to the air outlet end of the rear wheel regeneration heater.

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