CN112325386B

CN112325386B - Air conditioner

Info

Publication number: CN112325386B
Application number: CN202011201909.5A
Authority: CN
Inventors: 王永全; 邵书音; 陈艺松; 郭兆春; 肖才丁; 陈力
Original assignee: Xiamen Tobacco Industry Co Ltd
Current assignee: Xiamen Tobacco Industry Co Ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2022-07-22
Anticipated expiration: 2040-11-02
Also published as: CN112325386A

Abstract

The invention relates to the technical field of air conditioner filtration, in particular to an air conditioner. The air conditioner provided by the invention comprises: a housing; the filter device comprises filter cloth for filtering airflow flowing through the air conditioner, wherein the filter cloth is in a closed ring shape and comprises a part positioned in the shell and a part positioned outside the shell; and the driving mechanism is in driving connection with the filter cloth and drives the filter cloth to rotate so as to enable all parts of the filter cloth to circularly enter and exit the shell. Based on this, the cleaning of the filter device can be completed without stopping the machine.

Description

Air conditioner

Technical Field

The invention relates to the technical field of air conditioner filtration, in particular to an air conditioner.

Background

In an air conditioner, an air flow passing through the air conditioner is filtered by a filter device. Cleaning is required because the filter device may become clogged with dirt (referred to as "dirty"). For example, in air conditioners used in cigarette factories, filter devices are very easily clogged by tobacco dust due to a large amount of dust generated during tobacco processing and the fact that tobacco leaves contain tar components and have a large viscosity.

In the related art, the filtering device is integrally arranged inside the air conditioning casing, and when the filtering device needs to be cleaned, the filtering device is usually required to be detached to the outside of the casing for cleaning. In the dismounting process, the air conditioner needs to be stopped, the normal use of the air conditioner is influenced, the interruption of the temperature and humidity adjusting process can be caused, the temperature and humidity of a target space of which the temperature and humidity are adjusted by the air conditioner during the interruption are difficult to meet the requirements, the influence on occasions with higher requirements on the temperature and humidity, such as tobacco production, is larger, and even the product quality is possibly unqualified.

Disclosure of Invention

The invention provides an air conditioner which can clean a filtering device without stopping the air conditioner.

In order to achieve the above object, an air conditioner according to the present invention includes:

a housing;

the filter device comprises filter cloth for filtering airflow flowing through the air conditioner, wherein the filter cloth is in a closed ring shape and comprises a part positioned in the shell and a part positioned outside the shell; and

and the driving mechanism is in driving connection with the filter cloth and drives the filter cloth to rotate so as to enable all parts of the filter cloth to circularly enter and exit the shell.

In some embodiments, the housing is provided with a first opening and a second opening, and the filter cloth passes through the first opening and the second opening.

In some embodiments, the sealing device comprises a first liquid seal device, the first liquid seal device sealing the first opening; and/or the sealing means comprises a second hydraulic means which seals the second opening.

In some embodiments, the first liquid sealing device and/or the second liquid sealing device comprises a liquid storage tank and a baffle, sealing liquid is arranged in the liquid storage tank, the baffle is connected with the shell and the liquid storage tank in a sealing mode and extends into the sealing liquid, so that the baffle, the sealing liquid, the shell and the liquid storage tank are enclosed to form a substantially closed air isolating cavity, and the first opening and/or the second opening are/is located in the air isolating cavity.

In some embodiments, the end of the baffle plate extending into the sealing liquid is provided with a first roller, the filter cloth passes around the first roller and passes through the first opening and/or the second opening, and at least part of the first roller is located in the sealing liquid.

In some embodiments, the first opening is disposed on a top plate of the housing, and the first liquid seal device is disposed inside the housing and below the top plate; and/or the second opening is arranged on a bottom plate of the shell, and the second liquid seal device is arranged outside the shell and below the bottom plate.

In some embodiments, the filter device is provided with a plurality of holes arranged at intervals in sequence along the rotation direction of the filter cloth, the driving mechanism comprises a driving wheel with a plurality of teeth in the circumferential direction, and the driving wheel drives the filter cloth to rotate by matching with different holes.

In some embodiments, the filter device further includes a frame disposed on at least one side of the filter cloth in a width direction thereof, and the holes are disposed on the frame.

In some embodiments, the drive mechanism includes an adjustable speed motor.

In some embodiments, the air conditioner further comprises a cleaning device disposed outside the housing for cleaning the filter cloth.

In some embodiments, the cleaning device comprises a spraying device for spraying cleaning liquid towards the filter cloth to clean the filter cloth.

In some embodiments, the air conditioner further comprises a water receiving tank, which is arranged below the spraying device and is used for receiving cleaning liquid after the filter cloth is cleaned.

In some embodiments, the air conditioner further comprises a differential pressure gauge arranged in the housing and used for detecting the differential pressure of the two sides of the filter cloth along the direction of the air flow flowing through the air conditioner, and the driving mechanism drives the filter cloth to rotate according to the detection result of the differential pressure gauge.

In some embodiments, the filter cloth is a hydrophobic filter cloth.

In some embodiments, the filter cloth is a nylon filter cloth.

Based on the arranged filter cloth and the driving mechanism, when the part of the filter cloth positioned in the shell is dirty and blocked, the driving mechanism can be utilized to rotate the dirty and blocked part of the filter cloth to the outside of the shell of the air conditioner for cleaning, and simultaneously, the part of the filter cloth which is not dirty and blocked is rotated to the inside of the shell to continue to filter the air flow passing through the air conditioner, so that the cleaning of the filtering device can be completed without stopping the machine.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view illustrating division of functional sections in an air conditioner according to some embodiments of the present invention.

Fig. 2 is a schematic diagram of the arrangement of the filtering apparatus in some embodiments of the invention.

FIG. 3 is a schematic diagram of a filter arrangement according to some embodiments of the present invention.

In the figure:

1. a housing; 2. an air inlet section; 3. a filtration section; 4. a surface cooling section; 5. a heating humidification section; 6, an air supply section; 8. a return air flow; 9. fresh air flow; 10. air flow is supplied; 11. filtering cloth; 12. a liquid storage tank; 13. a first roller; 14. a baffle plate; 15. sealing liquid; 16. a second roller; 17. a speed-regulating motor; 18. a driving wheel; 19. a spraying device; 20. cleaning fluid; 21. a water receiving tank; 22. a sewage draining port; 23. a frame; 24. an aperture; 25. a differential pressure gauge; 26. a filtration device; 27. a drive mechanism; 28. a cleaning device; 29. a sealing device; 1a, a top plate; 1b, a bottom plate; 1c, a first opening; 1d, a second opening; 1e, an air insulation cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In the description of the present invention, it is to be understood that the directions or positional relationships indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the directions or positional relationships shown in the drawings, and are for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

In the description of the present invention, it should be understood that the terms "first", "second", etc. are used to define the components, and are used only for the convenience of distinguishing the corresponding components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Fig. 1 to 3 exemplarily show an air conditioner of the present invention.

Referring to fig. 1, in some embodiments, an air inlet section 2, a filtering section 3, an exterior cooling section 4, a heating and humidifying section 5, and an air supply section 6 are sequentially arranged inside a casing 1 of the air conditioner along the direction of airflow flowing through the air conditioner. The return air flow 8 and the fresh air flow 9 enter the shell 1, sequentially flow through the air inlet section 2, the filtering section 3, the surface cooling section 4 and the heating and humidifying section 5, then enter the air supply section 6, are blown out of the shell 1 by the air feeder in the air supply section 6 to become the supply air flow 10, enter the target space and regulate the temperature and humidity of the target space. As can be seen from fig. 1, in the illustrated embodiment, the flow direction of the airflow flowing through the air conditioner is along the left-to-right direction.

A filter device 26 is arranged in the filter segment 3 for filtering the air flow through the air conditioner, so that the filter segment 3 has a filtering function. Specifically, the filter device 26 is used for filtering the air flow in the process of flowing from the air inlet section 2 to the surface cooling section 4.

In order to avoid the air conditioner being stopped during the cleaning process of the filter device, referring to fig. 2-3, in some embodiments, a filter cloth 11 is provided in the filter device 26, and a driving mechanism 27 is added to the air conditioner.

The filter cloth 11 is used for filtering the air flow passing through the air conditioner, has a closed ring shape, and includes a portion located inside the housing 1 and a portion located outside the housing 1. Specifically, the housing 1 is provided with a first opening 1c and a second opening 1d for the filter cloth 11 to pass through. The first opening 1c and the second opening 1d may be slits. The filter cloth 11 extends from one of the first opening 1c and the second opening 1d to the outside of the housing 1 and then returns from the other of the first opening 1c and the second opening 1d to the inside of the housing 1 to form a closed loop, and the filter cloth 11 has both a portion located inside the housing 1 and a portion located outside the housing 1. Wherein a part of the filter cloth 11 located inside the housing 1 performs a filtering function for filtering an air flow passing through the air conditioner. The filtering portions are vertically arranged to provide adequate filtering of the horizontally flowing gas stream. The part of the filter cloth 11 positioned outside the shell 1 does not filter the air flow passing through the air conditioner, and when the part of the filter cloth 11 positioned inside the shell 1 is dirty, the part of the filter cloth 11 positioned outside the shell 1 is not dirty yet and is still clean. In order to facilitate the filter cloth 11 to be bent and wound, in some embodiments, the filter cloth 11 is made of a flexible material. At this time, a plurality of rollers may be provided in the air conditioner to support, tension and steer the filter cloth 11.

The drive mechanism 27 is drivingly connected to the filter cloth 11 and circulates parts of the filter cloth 11 into and out of the housing 1 by driving the filter cloth 11 in rotation, i.e. so that the filter cloth 11 can perform a similar circulating rotation as a belt driven by a pulley.

Based on the above arrangement, when the part of the filter cloth 11 located in the housing 1 is dirty, the dirty part of the filter cloth 11 can be rotated to the outside of the housing 1 by the driving mechanism 27 for cleaning, and meanwhile, the part of the filter cloth 11 not dirty is rotated to the inside of the housing 1 for filtering the air flow passing through the air conditioner. Like this, owing to need not to dismantle filter equipment 26, can accomplish the cleaning process to filter equipment 26, consequently, the air conditioner need not to shut down, can realize that filter cloth 11 is clean on line, can not cause the interrupt of temperature and humidity control process, can more continuously well satisfy the humiture requirement of target space, this is especially important to occasions that require higher to the humiture such as tobacco production, is favorable to preventing to influence product quality because of the humiture is not conform to the requirement. Moreover, when the dirty portion of the filtering device 26 is cleaned, the portion of the filtering device 26 that is not dirty is rotated into the housing 1 to continue the filtering function, so that the filtering device 26 can perform continuous filtering, and a more excellent and reliable filtering effect can be achieved.

In order to realize the circular rotation of the filtering device 26, referring to fig. 2-3, in some embodiments, the filtering device 26 is provided with a plurality of holes 24 sequentially spaced along the rotation direction of the filtering cloth 11 (also the length direction of the filtering cloth 11), and the driving mechanism 27 includes a driving wheel 18 having a plurality of teeth on the circumference, and the driving wheel 18 drives the filtering cloth 11 to rotate by cooperating with different holes 24.

Wherein the holes 24 may be provided directly in the filter cloth 11. Alternatively, the holes 24 may not be directly formed on the filter cloth 11, for example, referring to fig. 3, in some embodiments, the filter device 26 further includes a frame 23, the frame 23 is disposed on at least one side of the filter cloth 11 in the width direction, and the holes 24 are formed on the frame 23. Specifically, as shown in fig. 3, in some embodiments, both sides of the filter cloth 11 in the width direction are provided with frames 23, and each frame 23 is provided with a plurality of holes 24 sequentially arranged at intervals along the rotation direction of the filter cloth 11. Because the frame 23 is relatively hard, it is more convenient to provide the holes 24 and the force applied by the driving wheel 18. The manner of providing the holes 24 in the rim 23 is particularly suitable when the filter cloth 11 is a flexible filter cloth.

The transmission wheel 18, which may be a gear or a sprocket, is driven by a power mechanism, such as a motor of the driving mechanism 27, to rotate and to be twisted with the hole 24 during the rotation. Therefore, in the rotating process of the driving wheel 18, the teeth on the driving wheel 18 are inserted into different holes 24 to drive the filter cloth 11 to continuously advance along the tangential direction of the driving wheel 18, so that the filter cloth 11 is rotated circularly, one part of the filter cloth 11 can be moved out of the shell 1, and the other part of the filter cloth 11 can be moved into the shell 1.

The drive mechanism 27 may be operated all the time during the operation of the air conditioner, or may be operated only when the part of the filter cloth 11 that performs the filtering function is clogged. When the driving mechanism 27 operates, the filter cloth 11 can be driven to rotate at a constant speed or at variable speeds. For example, in some embodiments, when a filth blockage occurs at a portion of the filter cloth 11 that performs a filtering function, the driving mechanism 27 drives the filter cloth 11 to rotate at a higher speed, so that the filth blockage can move to the outside of the housing 1 to be cleaned more quickly, and the time for the filth blockage to move from the inside of the housing 1 to the outside of the housing 1 is shortened, thereby improving the efficiency. For another example, in some embodiments, when the filthy-clogged part of the filter cloth 11 moves to a predetermined cleaning position outside the housing 1, the driving mechanism 27 does not drive the filter cloth 11 to rotate any more, or only drives the filter cloth 11 to rotate slowly, so as to provide sufficient time for the cleaning process to achieve more thorough and thorough cleaning of the filthy-clogged part.

To facilitate adjustment of the rotation speed of the filter cloth 11, referring to fig. 2, in some embodiments the power mechanism of the drive mechanism 27 comprises a speed-regulating motor 17. Thus, the rotation speed of the filter cloth 11 can be adjusted by changing the rotation speed of the speed-adjusting motor 17.

In order to conveniently judge whether the filtering portion of the filter cloth 11 is dirty or not, referring to fig. 2, in some embodiments, the air conditioner includes a differential pressure gauge 25. A differential pressure gauge 25 is provided in the housing 1 for detecting a differential pressure (may be simply referred to as a filtering differential pressure) of both sides of the filter cloth 11 in a direction in which the air current flows through the air conditioner. When the part of the filter cloth 11 playing a role in filtering is dirty and blocked, the pressure on one side of the filter cloth 11 close to the air inlet section 2 is obviously increased, so that the filtering pressure difference is obviously increased, and therefore, the pressure difference meter 25 is arranged to detect the filtering pressure difference, and whether the part of the filter cloth 11 playing a role in filtering is dirty and blocked or not can be determined. In some embodiments, when the differential pressure gauge 25 detects that the filtering differential pressure exceeds a preset value, it is determined that the filtering portion of the filter cloth 11 has been fouled.

In the case where the differential pressure gauge 25 is provided, the drive mechanism 27 may drive the filter cloth 11 to rotate according to the detection result of the differential pressure gauge 25. For example, in some embodiments, the driving mechanism 27 is activated to drive the filter cloth 11 to rotate when the differential pressure gauge 25 detects that the filtering differential pressure exceeds a preset value. Alternatively, in some embodiments, when the differential pressure gauge 25 detects that the filtering differential pressure exceeds the preset value, the driving mechanism 27 increases the rotation speed of the speed regulating motor 17 to increase the rotation speed of the filter cloth 11, so as to rotate the dirty part to the outside of the housing 1 as soon as possible for cleaning. Based on the cooperation of the differential pressure gauge 25 and the driving mechanism 27, the filter cloth 11 is not only convenient to clean in time, but also convenient to maintain stable filtering differential pressure, which is beneficial to the air conditioner to realize more accurate temperature and humidity control process.

In the above embodiments, cleaning of the filter cloth 11 may be performed in various ways. For example, the filter cloth 11 may be cleaned by a manual cleaning method such as manual wiping. For another example, a cleaning device 28 may be provided outside the housing 1 to automatically clean the filter cloth 11, thereby improving cleaning efficiency.

As an embodiment of the cleaning device 28, referring to fig. 2, in some embodiments, the cleaning device 28 comprises a spraying device 19, and the spraying device 19 is used for cleaning the filter cloth 11 by spraying the cleaning liquid 20 towards the filter cloth 11. The spraying device 19 may include a spraying pipe and/or a nozzle to spray high-pressure cleaning liquid to the filter cloth 11. The cleaning liquid 20 may be water or a mixture of water and a detergent or the like.

Compared with the case that the spray device 19 is directly arranged inside the air conditioner, when the spray device 19 is arranged outside the housing 1, the cleaning liquid sprayed by the spray device 19 does not enter the housing 1, so that the influence on the air conditioning humidity adjusting process is small. Especially, when the target space is not the same as the space where the air conditioner is located, the cleaning liquid sprayed by the spraying device 19 cannot be delivered to the target space along with the air supply flow 10, and additional humidification cannot be performed on the target space, so that the accuracy of the air conditioner in controlling the humidity cannot be influenced, and the realization of a more accurate humidity adjusting process is facilitated.

With continued reference to fig. 2, in some embodiments, the air conditioner further comprises a water receiving tank 21, the water receiving tank 21 being disposed below the spraying device 19 for receiving the cleaning liquid 20 after cleaning the filter cloth 11. Thus, the cleaning liquid 20, which has been soiled after cleaning the filter cloth 11, can be prevented from overflowing around, and a cleaner and safer filter cloth cleaning process is achieved. Wherein, the bottom of the water receiving tank 21 may be provided with a sewage discharge outlet 22 to discharge the dirty cleaning liquid 20 in the water receiving tank 21 to a designated place when necessary (for example, when the cleaning liquid 20 received in the water receiving tank 21 reaches a predetermined liquid level), so as to perform subsequent sewage treatment.

In some embodiments, the filter cloth 11 is a hydrophobic filter cloth 11, i.e., the filter cloth 11 may be made of a hydrophobic material. When the filter cloth 11 is hydrophobic, the filter cloth 11 has poor adsorbability to water and water solution, so that the filter cloth is more convenient to clean.

In some embodiments, the filter cloth 11 is a nylon filter cloth. At this time, on one hand, the filter cloth 11 is flexible filter cloth, which has good flexibility and can be repeatedly bent, the bending angle can reach more than 90 degrees, and no permanent deformation is generated, on the other hand, the filter cloth 11 is hydrophobic filter cloth, water and solution thereof are not easy to adhere to the filter cloth, and the filter cloth 11 can be rapidly dehydrated after being cleaned, and the subsequent filtration use is not influenced.

The number of layers of the filter cloth 11 can be selected depending on the filtration grade. When the filtration grade is low, the filter cloth 11 with a small number of layers can be selected. When the filtration grade is higher, the filter cloth 11 with more layers can be selected.

In the above embodiments, in order to prevent the air conditioner from leaking air at the position where the filter cloth 11 passes through the housing 1 (at the first opening 1c and the second opening 1d), referring to fig. 2, in some embodiments, the air conditioner includes a sealing device 29, and the sealing device 29 seals the first opening 1c and the second opening 1 d.

For example, in some embodiments, to effect a seal to the first opening 1c, the sealing device 29 comprises a first fluid seal that seals the first opening 1 c. The first liquid sealing means seals the first opening 1c with a sealing liquid 15, which is arranged in correspondence with the first opening 1 c. For example, referring to fig. 2, in some embodiments, the first opening 1c is disposed on the top plate 1a of the housing 1, and the first liquid sealing device is disposed inside the housing 1 and below the top plate 1 a.

For another example, in some embodiments, to seal the second opening 1d, the sealing device 29 includes a second hydraulic device that seals the second opening 1 d. Wherein the second liquid-sealing means seals the second opening 1d with a sealing liquid 15, which is arranged in correspondence with the second opening 1 d. For example, referring to fig. 2, in some embodiments, the second opening 1d is disposed on the bottom plate 1b of the housing 1, and the second liquid sealing device is disposed outside the housing 1 and below the bottom plate 1 b.

The liquid seal device is adopted to seal the opening through which the filter cloth 11 passes, and compared with the sealing condition adopting other modes, the liquid seal device has the advantages that air leakage of the air conditioner can be reliably prevented, the rotation of the filter cloth 11 is not influenced, and the structure is relatively simple.

Wherein, by way of example, referring to fig. 2, the first liquid seal apparatus and/or the second liquid seal apparatus comprises a reservoir 12 and a baffle 14. The liquid storage tank 12 is internally provided with sealing liquid 15, and the baffle plate 14 is connected with the shell 1 and the liquid storage tank 12 in a sealing way and extends into the sealing liquid 15, so that a basically closed air-isolating cavity 1e is formed by the baffle plate 14, the sealing liquid 15, the shell 1 and the liquid storage tank 12. The first opening 1c and/or the second opening 1d are located in the air-isolated chamber 1 e. Here, "substantially closed" means that the other part of the air-tight chamber 1e is sealed and air-tight except for the first opening 1c and/or the second opening 1 d.

Based on the above arrangement, the air entering the air-isolating chamber 1e from the first opening 1c and/or the second opening 1d can be sealed in the air-isolating chamber 1e, and will not mix with the air flowing through the housing 1, and meanwhile, the air inside the housing 1 can not enter the air-isolating chamber e and mix with the air flowing in from the first opening 1c and/or the second opening 1d, in other words, the air-isolating chamber 1e can isolate the air inside and outside the housing 1, thereby effectively preventing air leakage of the air conditioner.

Referring to fig. 2, in some embodiments, the baffle 14 is provided with a first roller 13 at an end thereof extending into the sealing liquid 15, the filter cloth 11 passes around the first roller 13 and through the first opening 1c and/or the second opening 1d, and at least a portion of the first roller 13 is located in the sealing liquid 15. The first roller 13 then acts as a tensioning and deflecting roller for the filter cloth 11. In addition, referring to fig. 2, in addition to the first roller 13, in some embodiments, the air conditioner further includes a plurality of second rollers 16 located outside the reservoir 12, the second rollers 16 being spaced along the rotation direction of the filter cloth 11, and together with the first roller 13, supporting, tensioning, and turning the entire filter cloth 11. Wherein, the tension force to the filter cloth 11 can be adjusted by adjusting the bracket angle of the second roller 16.

The sealing device 29 shown in fig. 2 is further described here.

As shown in fig. 2, in this embodiment, the sealing device 29 includes a first liquid sealing device and a second liquid sealing device, which respectively seal the first opening 1c on the top plate 1a and the second opening 1b on the bottom plate 1b, and achieve isolation of air inside and outside the housing at the first opening 1c and the second opening 1 b.

Wherein, the first liquid seal device is arranged inside the shell 1 and is positioned below the top plate 1 a. The first wet sealing device includes a reservoir 12 and a baffle 14. The top ends of the front wall, the rear wall and the right wall of the liquid storage tank 12 are connected with the top plate 1a in a sealing mode, and a gap is formed between the top end of the left wall of the liquid storage tank 12 and the top plate 1a to form a gap for the filter cloth 11 to enter the liquid storage tank 12. The baffle 14 is disposed at the left side of the first opening 1c, and has a top end hermetically connected to the top plate 1a and a lower end connected to the center of the first roller 13. The filter cloth 11 entering the reservoir 12 passes under the first roller 13 and around the first roller 13, and then extends to the outside of the housing 1 through the first opening 1 c. The liquid storage tank 12 is filled with a sealing liquid 15, and the sealing liquid 15 at least submerges the lower end of the baffle 14, namely the liquid level of the sealing liquid 15 is at least above the lower end of the baffle 14, in other words, the lower end of the baffle 14 extends into the sealing liquid 15. Therefore, an air isolation cavity 1e positioned on the right side of the baffle 14 is formed among the sealing liquid 15, the baffle 14, the liquid storage tank 12 and the shell 1, and the isolation of the air inside and outside the shell 1 is realized.

The second liquid seal device is arranged outside the housing 1 and below the bottom plate 1 b. The second liquid containment means comprises a reservoir 12 and a baffle 14. The top ends of the front wall, the rear wall and the left wall of the liquid storage tank 12 are hermetically connected with the bottom plate 1b, and a gap is formed between the top end of the right wall of the liquid storage tank 12 and the bottom plate 1b to form a gap for the filter cloth 11 to enter the liquid storage tank 12. The baffle 14 is disposed at the right side of the second opening 1d, and has a top end hermetically connected to the bottom plate 1b and a lower end connected to the center of the first roller 13. The filter cloth 11 entering the liquid storage tank 12 passes under the first roller 13 and around the first roller 13, and then extends into the housing 1 through the second opening 1 d. The reservoir 12 is filled with a sealing liquid 15, and the sealing liquid 15 immerses at least the lower end of the baffle 14. Thus, an air isolation cavity 1e positioned on the left side of the baffle 14 is formed among the sealing liquid 15, the baffle 14, the liquid storage tank 12 and the shell 1, and the isolation of air inside and outside the shell 1 is realized.

For the sake of convenience of distinction, the reservoirs 12 and the dams 14 of the first liquid-sealing device and the second liquid-sealing device may be distinguished by adding "first" and "second" in the names, respectively, i.e., the reservoirs 12 and the dams 14 of the first liquid-sealing device are referred to as first reservoirs and first dams, and the reservoirs 12 and the dams 14 of the second liquid-sealing device are referred to as second reservoirs and second dams.

The sealing liquid 15 may be water or another inexpensive and clean liquid. Since the sealing liquid 15 can dissolve part of the dirt on the filter cloth 11, the sealing liquid 15 in the reservoir 12 can be replaced periodically, or the sealing liquid 15 can be replaced once after the filter cloth 11 is rotated by a preset distance.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air conditioner, comprising:

a housing (1);

the filtering device (26) comprises a filtering cloth (11) for filtering airflow flowing through the air conditioner, the filtering cloth (11) is in a closed ring shape and comprises a part positioned inside the shell (1) and a part positioned outside the shell (1); and

the driving mechanism (27) is in driving connection with the filter cloth (11) and drives the filter cloth (11) to rotate so as to enable all parts of the filter cloth (11) to circularly enter and exit the shell (1);

wherein a first opening (1c) and a second opening (1d) are arranged on the shell (1), the filter cloth (11) penetrates through the first opening (1c) and the second opening (1d), the air conditioner further comprises a sealing device (29), the sealing device (29) seals the first opening (1c) and the second opening (1d), and the sealing device (29) comprises a first liquid sealing device which seals the first opening (1 c); and/or the sealing means (29) comprise second hydraulic means which seal the second opening (1 d).

2. The air conditioner according to claim 1, wherein the first liquid sealing device and/or the second liquid sealing device comprises a liquid storage tank (12) and a baffle (14), wherein a sealing liquid (15) is arranged in the liquid storage tank (12), the baffle (14) is connected with the shell (1) and the liquid storage tank (12) in a sealing way and extends into the sealing liquid (15), so that the baffle (14), the sealing liquid (15), the shell (1) and the liquid storage tank (12) enclose a substantially closed air-isolating cavity (1e), and the first opening (1c) and/or the second opening (1d) are/is positioned in the air-isolating cavity (1 e).

3. Air conditioner according to claim 2, characterized in that the baffle (14) is provided with a first roller (13) on its end extending into the sealing liquid (15), the filter cloth (11) passing around the first roller (13) and through the first opening (1c) and/or the second opening (1d), at least part of the first roller (13) being located in the sealing liquid (15).

4. Air conditioner according to claim 1, characterized in that said first opening (1c) is provided on a top plate (1a) of said casing (1), said first hydraulic seal being provided inside said casing (1) and below said top plate (1 a); and/or the second opening (1d) is arranged on a bottom plate (1b) of the shell (1), and the second liquid sealing device is arranged outside the shell (1) and below the bottom plate (1 b).

5. The air conditioner according to claim 1, wherein the filtering device (26) is provided with a plurality of holes (24) sequentially arranged at intervals along the rotation direction of the filter cloth (11), the driving mechanism (27) comprises a driving wheel (18) having a plurality of teeth along the circumferential direction, and the driving wheel (18) drives the filter cloth (11) to rotate by being matched with different holes (24).

6. The air conditioner according to claim 5, wherein the filter device (26) further comprises a frame (23), the frame (23) is provided on at least one side of the filter cloth (11) in a width direction, and the holes (24) are provided on the frame (23).

7. Air conditioner according to claim 1, characterized in that the drive mechanism (27) comprises a variable speed motor (17).

8. Air conditioner according to any of claims 1-7, characterized in that the air conditioner further comprises a cleaning device (28), which cleaning device (28) is arranged outside the housing (1) for cleaning the filter cloth (11).

9. Air conditioner according to claim 8, characterized in that the cleaning device (28) comprises a spray device (19), which spray device (19) effects cleaning of the filter cloth (11) by spraying cleaning liquid (20) towards the filter cloth (11).

10. Air conditioner according to claim 9, characterized in that it further comprises a water catch (21), said water catch (21) being arranged below said spray device (19) for receiving a cleaning liquid (20) after cleaning said filter cloth (11).

11. The air conditioner according to claim 1, further comprising a differential pressure gauge (25), wherein the differential pressure gauge (25) is disposed in the housing (1) for detecting a differential pressure of both sides of the filter cloth (11) in a direction in which the air current flows through the air conditioner, and the driving mechanism (27) drives the filter cloth (11) to rotate according to a detection result of the differential pressure gauge (25).

12. Air conditioner according to claim 1, characterized in that the filter cloth (11) is a hydrophobic filter cloth.

13. Air conditioner according to claim 1, characterized in that the filter cloth (11) is a nylon filter cloth.