CN216737671U - Filtering system and filtering device - Google Patents

Abstract

The utility model relates to a filtration system and filter equipment. When water is produced, raw water enters the first shell through the raw water inlet, after being filtered by the filtering element, concentrated water is discharged outwards through the concentrated water output part and the concentrated water outlet of the filtering element, produced water is discharged outwards through the produced water output part and the first produced water outlet of the filtering element and enters the second shell, after the liquid level of the second shell is full, the produced water is produced through the second produced water interface, and at the moment, the compressed air inlet is in a closed state; because in the operation process, the product water in the water storage space in the second casing is in the continuous flow state all the time, just so can avoid breeding the bacterium. When operating the backwash of first casing and filter element, backwash compressed air passes through compressed air and inserts in the mouth gets into the second casing, in the filter element is impressed through first product water export reversal with the product water in the second casing, carries out filter element's backwash operation, outwards discharges through the raw water import.

Description

Filtering system and filtering device

Technical Field

The utility model relates to a water treatment technical field especially relates to a filtration system and filter equipment.

Background

With the development of water treatment technology, filtration devices have emerged. The filtration device generally includes a housing and a filtration membrane element disposed in the housing, and the housing is provided with a raw water inlet, a water production port, a concentrated water discharge port, and a compressed air port. When the filter device normally produces water, the compressed air interface is kept in a closed state, raw water enters the shell through the raw water inlet, the raw water is filtered by the filter membrane element, produced water obtained by filtering the raw water by the filter membrane element is discharged outwards through the water producing port, and obtained concentrated water is discharged outwards through the concentrated water discharging port.

In addition, the backwashing work of the traditional filtering device usually adopts a water backwashing process, namely, a backwashing tank is separately arranged on the water production side, and a certain amount of produced water is stored in the backwashing tank. When the filter device needs backwashing, the backwashing tank takes the produced water in the backwashing tank as backwashing water to be conveyed to the filter device for backwashing the filter membrane element through a pump or a compressed air power source.

When producing water and using under clean operating mode condition, for example the pharmaceutical industry, filter equipment's backwash operation sets up certain time interval usually, and during the backwash interval, the product water in the backwash jar is in quiescent condition, and the stagnant water of quiescent condition easily breeds the microorganism. And in the backwashing operation process, stopping the filtering device to produce water, performing backwashing work, and cleaning impurities intercepted in the filtering membrane element in a backwashing mode. However, microorganisms that grow in the product water during backwash operations may contaminate the filtration device. In addition, if an excessive amount of bactericide is added to the inside of the backwash tank to kill microorganisms growing in the produced water, residues on the filtration membrane elements are likely to be caused after the backwashing operation of the filtration membrane elements is completed.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to overcome the defects in the prior art and provide a filtration system and a filtration apparatus, which can reduce the risk of microorganism breeding and avoid the contamination of the filtration membrane element during the backwashing operation.

The technical scheme is as follows: a filter device, the filter device comprising:

the device comprises a first shell, a second shell and a third shell, wherein the first shell is provided with a raw water inlet, a first produced water outlet and a concentrated water outlet;

the filter element is arranged in the first shell, a raw water inlet part of the filter element is communicated with the raw water inlet, the filter element is used for filtering raw water entering from the raw water inlet, a produced water output part of the filter element is communicated with the first produced water outlet, and a concentrated water output part of the filter element is communicated with the concentrated water outlet;

the second shell is connected with the first shell, a water storage space is formed in the second shell, the water storage space is communicated with the first water production outlet, and a second water production outlet and a compressed air inlet which are communicated with the water storage space are further formed in the second shell.

In the filtering device, when water is produced, raw water enters the first shell through the raw water inlet, after being filtered by the filtering element, concentrated water is discharged outwards through the concentrated water output part and the concentrated water outlet of the filtering element, the produced water is discharged outwards through the produced water output part and the first produced water outlet of the filtering element and enters the second shell, after the liquid level of the second shell is full, the produced water is produced through the second produced water interface, and at the moment, the compressed air inlet is in a closed state; because in the operation process, the product water in the water storage space in the second casing is in the continuous flow state all the time, just so can avoid breeding the bacterium.

When operating first casing and filter element backwash, inside the raw water stops to input first casing, the second casing was as the backwash jar, the second produced water interface was closed this moment, compressed air inserts the mouth and is in the open mode, backwash compressed air passes through the compressed air and inserts in the mouth gets into the second casing, compressed air is in the second casing produced water through first product water export reverse impressing filter element in, carry out filter element's backwash operation, outwards discharge through the raw water import after the backwash.

When the first shell and the filter element are subjected to heat sterilization operation, raw water stops being input into the first shell, the compressed air inlet is closed at the moment, hot water or pure steam enters the first shell through the raw water inlet and is discharged through the second water production interface, and the first shell and the filter element are sterilized while the second shell is synchronously sterilized.

In one embodiment, the filter element is a cylindrical body; a water production output part is arranged on the side surface of the filter element, two end parts of the side surface of the filter element are respectively in sealing fit with the inner wall of the first shell, a first water flow interval is arranged between the side surface of the filter element and the inner wall of the first shell, and the first water flow interval is communicated with the first water production outlet;

a raw water inlet part is arranged on the first end face of the filter element, a second water flow interval is arranged between the first end face of the filter element and the bottom end face of the first shell, and the second water flow interval is communicated with the raw water inlet;

the second end face of the filter element is provided with a concentrated water output part, a third water flow interval is arranged between the second end face of the filter element and the top end face of the first shell, and the third water flow interval is communicated with the concentrated water outlet.

In one embodiment, the first housing comprises a first cylinder, a first end cap and a second end cap; the bottom end of the first cylinder body is detachably connected with the first end cover, and the top end of the first cylinder body is detachably connected with the second end cover; the filter element is arranged in the first cylinder, and the two end parts of the side surface of the filter element are respectively in corresponding sealing fit with the inner walls of the two ends of the first cylinder; the side surface of the filter element and the inner wall of the first cylinder are provided with the first water flow interval.

In one embodiment, the bottom end of the first cylinder is connected with the first end cover through a first clamp; the top end of the first cylinder is connected with the second end cover through a second clamp; first clamp with the second clamp is health level's clamp.

In one embodiment, the second end cap includes a bottom plate spaced opposite the concentrate output of the filter element, and a side plate disposed circumferentially about the bottom plate; the side plate is hermetically and closely sleeved outside the top end of the filter element; the side plate is provided with the first water production outlet along the axial direction of the first cylinder; and the side plate is also provided with a concentrated water outlet.

In one embodiment, the filtering device further comprises a first positioning part and a second positioning part; the first positioning piece is arranged at the bottom end of the first shell and used for limiting and abutting against the first end face of the filter element; the second positioning piece is arranged at the top end of the first shell and used for limiting and abutting against the second end face of the filter element.

In one embodiment, the second shell comprises a second cylinder body and a third end cover, the bottom end of the second cylinder body is connected with the top end of the first shell, and the top end of the second cylinder body is detachably connected with the third end cover; the second water production outlet is formed in the third end cover, and the compressed air inlet is formed in the side wall of the second cylinder.

In one embodiment, the filter device further comprises a third clamp and a fourth clamp; the bottom end of the second cylinder is connected with the top end of the first shell through a third hoop; the top end of the second cylinder is connected with the third end cover through a fourth hoop; the third clamp with the fourth clamp is health level's clamp.

In one embodiment, the filter element is a microfiltration membrane, an ultrafiltration membrane, a nanofiltration membrane, a reverse osmosis membrane, a ceramic filter layer, a PTFE filter layer, or an activated carbon filter layer.

A filtering system comprises the filtering device.

The filtering system comprises the filtering device, so that the technical effect is brought by the filtering device, and the beneficial effects are the same as those of the filtering device, and are not described again here.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of a cross-sectional structure of a filter device according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is an enlarged schematic view of FIG. 1 at B;

FIG. 4 is an enlarged schematic view of FIG. 1 at C;

fig. 5 is a schematic cross-sectional view of another perspective of a filter device according to an embodiment of the present invention.

10. A first housing; 11. a raw water inlet; 12. a first water production outlet; 13. a concentrated water outlet; 14. a first cylinder; 15. a first end cap; 16. a second end cap; 161. a base plate; 162. a side plate; 20. a filter element; 21. a side surface; 22. a first end face; 23. a second end face; 30. a second housing; 31. a water storage space; 32. a second produced water outlet; 33. a compressed air inlet; 34. a second cylinder; 35. a third end cap; 41. a first water flow interval; 42. a second water flow interval; 43. a third water flow interval; 51. a first clamp; 52. a second clamp; 53. a third hoop; 54. a fourth clamp; 61. a first pair of joints; 62. a second pair of connectors; 71. a first positioning member; 711. a first flange; 72. a second positioning member; 721. a second flange.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

Referring to fig. 1 and 5, fig. 1 and 5 respectively show schematic cross-sectional views at two different viewing angles of a filtering apparatus according to an embodiment of the present invention, and an embodiment of the present invention provides a filtering apparatus, which includes: a first housing 10, a filter element 20 and a second housing 30. The first shell 10 is provided with a raw water inlet 11, a first produced water outlet 12 and a concentrated water outlet 13. The filter element 20 is disposed inside the first housing 10, a raw water inlet portion (specifically, for example, a first end surface 22 shown in fig. 5) of the filter element 20 is communicated with the raw water inlet 11, the filter element 20 is used for filtering the raw water entering from the raw water inlet 11, a produced water output portion (specifically, for example, a side surface 21 shown in fig. 5) of the filter element 20 is communicated with the first produced water outlet 12, and a concentrated water output portion (specifically, for example, a second end surface 23 shown in fig. 5) of the filter element 20 is communicated with the concentrated water outlet 13. The second housing 30 is connected to the first housing 10, the second housing 30 forms a water storage space 31, the water storage space 31 is communicated with the first water production outlet 12, and the second housing 30 is further provided with a second water production outlet 32 and a compressed air inlet 33, which are communicated with the water storage space 31.

The raw water inlet portion of the filter element 20 refers to a portion of the filter element 20 into which raw water enters, that is, the first end surface 22 as shown in fig. 5; the produced water output of the filter element 20 refers to a portion of the filter element 20 from which produced water is discharged outwardly, i.e., for example, the side 21 as shown in fig. 5; the concentrate outlet of the filter element 20 refers to a portion of the filter element 20 from which concentrate is discharged to the outside, i.e., the second end face 23 as shown in fig. 5, for example.

In the filtering device, when water is produced, raw water enters the first shell 10 through the raw water inlet 11, after being filtered by the filtering element 20, concentrated water is discharged outwards through the concentrated water output part and the concentrated water outlet 13 of the filtering element 20, produced water is discharged outwards through the produced water output part and the first produced water outlet 12 of the filtering element 20 and enters the second shell 30, after the liquid level of the second shell 30 is full, the produced water is produced through the second produced water port, and at the moment, the compressed air inlet 33 is in a closed state; in the operation process, the water produced in the water storage space 31 in the second shell 30 is in a continuous flowing state all the time, so that the breeding of bacteria can be avoided.

When the backwashing operation of the first shell 10 and the filter element 20 is carried out, raw water stops being input into the first shell 10, the second shell 30 is used as a backwashing tank, the second water production port is closed at the moment, the compressed air inlet 33 is in an open state, backwashing compressed air enters the second shell 30 through the compressed air inlet 33, the compressed air reversely presses the produced water in the second shell 30 into the filter element 20 through the first water production outlet 12, the backwashing operation of the filter element 20 is carried out, and the backwashing water is discharged outwards through the raw water inlet 11.

When the first housing 10 and the filter element 20 are thermally sterilized, the raw water stops being input into the first housing 10, the compressed air inlet 33 is closed, the hot water or the pure steam enters the first housing 10 through the raw water inlet 11 and is discharged through the second water producing port, and the first housing 10 and the filter element 20 are sterilized and the second housing 30 is simultaneously sterilized.

Referring to fig. 1 and 5, in one embodiment, the filter element 20 includes, but is not limited to, a cylindrical body, and is specifically, for example, a cylinder.

Referring to fig. 1 and 5, a side 21 of the filter element 20 is provided with a water output portion, two ends of the side 21 of the filter element 20 are respectively attached to the inner wall of the first housing 10 in a sealing manner, the side 21 of the filter element 20 and the inner wall of the first housing 10 are provided with a first water flow interval 41, and the first water flow interval 41 is communicated with the first water output port 12.

Referring to fig. 1 and 5, the first end surface 22 of the filter element 20 is provided with a raw water inlet, the first end surface 22 of the filter element 20 and the bottom end surface of the first housing 10 are provided with a second water flow space 42, and the second water flow space 42 is communicated with the raw water inlet 11.

Referring to fig. 1 and 5, the second end surface 23 of the filter element 20 is provided with a concentrated water output portion, the second end surface 23 of the filter element 20 and the top end surface of the first housing 10 are provided with a third water flow space 43, and the third water flow space 43 is communicated with the concentrated water outlet 13.

Referring to fig. 1 to 4, fig. 2 to 4 respectively show enlarged structural schematic diagrams at A, B and C of fig. 1. In one embodiment, the first housing 10 includes a first cylinder 14, a first end cap 15, and a second end cap 16. The bottom end of the first cylinder 14 is detachably connected with the first end cover 15, and the top end of the first cylinder 14 is detachably connected with the second end cover 16. The filter element 20 is disposed inside the first cylinder 14, and two end portions of a side surface 21 of the filter element 20 are respectively in corresponding sealing fit with inner walls of two ends of the first cylinder 14. The side 21 of the filter element 20 is provided with a first water flow space 41 from the inner wall of the first cylinder 14.

Referring to fig. 1-4, in one embodiment, the bottom end of the first barrel 14 is connected to the first end cap 15 by, for example, a first clip 51. The top end of the first barrel 14 is connected to the second end cap 16 by, for example, a second clip 52. The first clip 51 and the second clip 52 are sanitary clips. In this manner, assembly of the filter element 20 to the interior of the first cylinder 14 is facilitated. In addition, adopt health level's clamp, can guarantee the cleanliness factor of producing water.

It should be noted that the first end cap 15 can also be disposed at the bottom end of the first cylinder 14, for example, by screwing, bonding, etc., or can be fixed at the bottom end of the first cylinder 14 in a snap-fit manner. The second end cap 16 is similarly disposed on the top end of the first cylinder 14 and will not be described in detail herein.

Referring to fig. 1 to 4, in particular, a first pair of joints 61 is disposed at the bottom end of the first cylinder 14, and the first pair of joints 61 is sleeved outside the bottom end of the filter element 20 and is sealed and attached to the bottom end of the side surface 21 of the filter element 20. In addition, the top end of the first cylinder 14 is provided with a second pair of joints 62, and the second pair of joints 62 are sleeved outside the top end of the filter element 20 and are in sealing fit with the top end of the side surface 21 of the filter element 20.

Referring to fig. 1 to 4, in order to ensure the sealing performance, the outer wall of the first pair of joints 61 is adapted to the inner wall of the bottom end of the first cylinder 14, that is, when the inner wall of the first cylinder 14 is a circular wall, the outer wall of the first pair of joints 61 is a circular wall. Likewise, the outer walls of the second pair of tabs 62 conform to the top inner wall of the first cylinder 14. The first joint 61 may be integrally connected to the bottom end of the first cylinder 14. Alternatively, the first pair of tabs 61 may be fixedly attached to the bottom end of the first barrel 14 by, for example, snapping, screwing, bonding, etc. The second pair of connectors 62 are connected to the top end of the first cylinder 14 in a similar manner and will not be described in detail herein.

Referring to fig. 1 to 4, further, the first pair of connectors 61 is further provided with a first protrusion protruding out of the first cylinder 14, and the first protrusion is conveniently connected to the first end cap 15 through the first clamp 51. Similarly, the second pair of tabs 62 are provided with second projections that project outwardly from the first barrel 14 and facilitate connection to the second end cap 16 via the first clip 51.

Referring to fig. 1 and 2, in one embodiment, the second end cap 16 includes a bottom plate 161 spaced opposite the concentrate outlet of the filter element 20, and a side plate 162 circumferentially disposed around the bottom plate 161. The side plate 162 is sealingly fitted over the top end of the filter element 20. The side plate 162 provides the first produced water outlet 12 along the axial direction of the first cylinder 14. The side plate 162 is also provided with a concentrated water outlet 13. In this way, since the side plate 162 is tightly fitted and sleeved outside the top end of the filter element 20, the first water flow interval 41 and the third water flow interval 43 are isolated from each other, and the mixing of the concentrated water in the third water flow interval 43 and the produced water in the first water flow interval 41 can be avoided.

Referring to fig. 1, 2 and 5, in particular, the number of the first water production outlets 12 is one or at least two. At least two first water producing outlets 12 are spaced on the side plate 162, and the more the number of the first water producing outlets 12 is, the more evenly the first water producing outlets 12 are distributed on the side plate 162, the more the water produced in the first water flow space 41 can be discharged outwards through the first water producing outlets 12.

Referring to fig. 1 to 4, in one embodiment, the filter device further includes a first positioning element 71 and a second positioning element 72. The first positioning element 71 is disposed at the bottom end of the first casing 10 and is used for spacing and abutting against the first end face 22 of the filter element 20. The second positioning element 72 is disposed at the top end of the first casing 10, and is used for being in limit contact with the second end face 23 of the filter element 20.

Referring to fig. 1 to 4, specifically, the first positioning element 71 is sleeved outside the bottom end of the filter element 20, and has a first flange 711, which abuts against and is limited by the first flange 711 and the first end surface 22. In addition, the second positioning member 72 is disposed outside the top end of the filter element 20, and has a second flange 721, and the second flange 721 abuts against the second end surface 23 for limiting.

Referring to fig. 1 and 4, in one embodiment, the second housing 30 includes a second cylinder 34 and a third end cap 35. The bottom end of the second cylinder 34 is connected to the top end of the first housing 10, and the top end of the second cylinder 34 is detachably connected to the third end cap 35. The second produced water outlet 32 is arranged on the third end cover 35, and the compressed air inlet 33 is arranged on the side wall of the second cylinder 34.

Referring to fig. 1 to 4, in one embodiment, the filter device further includes a third clip 53 and a fourth clip 54. The bottom end of the second cylinder 34 is connected with the top end of the first shell 10 through a third clamp 53; the top end of the second cylinder 34 is connected to the third end cap 35 by a fourth clip 54. Specifically, the third clip 53 and the fourth clip 54 are sanitary-grade clips. In this way, the third clamp 53 can facilitate the assembly of the first housing 10 and the second housing 30, and ensure the cleanliness of the produced water. In addition, during production and manufacturing, the third end cover 35 and the second cylinder 34 can be manufactured separately and then assembled together through the fourth clamp 54, so that the production difficulty can be reduced.

In one embodiment, the filter element 20 is a microfiltration membrane, an ultrafiltration membrane, a nanofiltration membrane, a reverse osmosis membrane, a ceramic filter layer, a PTFE filter layer, or an activated carbon filter layer.

In one embodiment, the ceramic filter layer is a monolithic sintered ceramic. When raw water flows through the ceramic filter layer, large suspended particles in the raw water are filtered by the ceramic filter layer. In addition, because the ceramic filter layer is integration sintered ceramic, filter pore diameter homogeneity is good, and the ceramic filter layer is fixed, can not lead to indiscriminate layer because of installation or backwash technology, and ceramic filter layer cleaning process is simple, can use compressed air to mix the backwash, and the ceramic filter layer is convenient for the whole disposable change of being convenient for simultaneously, and weight is less, and does not need the layering to fill, can greatly reduced running cost with be convenient for carry out maintenance work.

In one embodiment, the PTFE (polytetrafluoroethylene) filter layer is a unitary sintered structure. So, through impurity filtering such as the large granule suspended solid of PTFE filter layer in to former aquatic, can guarantee the suspended particle complete filtration as far as possible of former aquatic. In addition, the PTFE filter layer is an integrated sintering structure, namely, the PTFE raw material is sintered at high temperature and high pressure, so that the PTFE filter layer has good filtering performance, and the conventional filtering precision is 0.1um to 30um, so that impurities such as suspended particles entering the raw water of the continuous process are reduced.

In one embodiment, the activated carbon filter layer is an integral sintered activated carbon structure. In this way, for example, activated carbon particles having a high iodine value (a high iodine value, for example, 2000 or more) are used, and after forming by bonding, they are baked at a high temperature to carbonize the binder and form micropores. The filter core main part 100% of integration sintering active carbon structure is the active carbon material, and its contact surface area is bigger, and the aperture is tortuous, and the pollutant carrying capacity is stronger, can filter former aquatic chlorine residue and other organic matters better, and the filter core tolerates many times pasteurization, can not produce the dirty stifled rear end technology of active carbon powder, but the whole change does not need loaded down with trivial details packing, can greatly reduced running cost and be convenient for carry out maintenance work.

Referring to fig. 1 to 4, in one embodiment, a filtering system includes the filtering apparatus of any one of the embodiments.

The filtering system comprises the filtering device, so that technical effects are brought by the filtering device, and beneficial effects are the same as those of the filtering device, and are not described again.

Referring to fig. 1 to 4, in an embodiment, a working method of the filtering apparatus of any one of the above embodiments includes the following steps:

and a water producing step, wherein raw water enters the first shell 10 through the raw water inlet 11, after being filtered by the filter element 20, concentrated water is discharged outwards through the concentrated water output part and the concentrated water outlet 13 of the filter element 20, produced water is discharged outwards through the produced water output part and the first produced water outlet 12 of the filter element 20 and enters the second shell 30, after the liquid level of the second shell 30 is full, the produced water is produced through the second produced water port, and the compressed air inlet 33 is in a closed state.

In the working method of the filtering device, because the produced water in the water storage space 31 in the second shell 30 is in a continuous flowing state all the time in the water production running process, bacteria can be prevented from breeding, and the membrane element is prevented from being polluted during backwashing operation.

In one embodiment, the method of operation of the filter apparatus further comprises a backwash operation step:

a backwashing operation step, in which raw water is stopped to be input into the first shell 10, the second water production port is closed, the compressed air inlet 33 is in an open state, backwashing compressed air enters the second shell 30 through the compressed air inlet 33, the compressed air reversely presses the produced water in the second shell 30 into the filter element 20 through the first water production outlet 12, backwashing operation is performed on the filter element 20, and backwashing water is discharged outwards through the raw water inlet 11;

generally, when ceramic ultrafiltration is applied, the filtration membrane element needs to be thermally sterilized periodically due to the requirement of cleanliness, such as pasteurization, that is, pure steam sterilization, and the prior art backwashing tank is connected with the filtration membrane element through an independent pipe, and when the filtration membrane element is thermally sterilized, the backwashing tank cannot be thermally sterilized at the same time. In one embodiment, the method of operating the filtration device further comprises the step of heat disinfection:

and a heat sterilization step, in which raw water stops being input into the first housing 10, the compressed air inlet 33 is closed, hot water or pure steam enters the first housing 10 through the raw water inlet 11 and is discharged through the second water production port, and the first housing 10 and the filter element 20 are sterilized while the second housing 30 is sterilized simultaneously.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. A filter device, comprising:

the device comprises a first shell, a second shell and a third shell, wherein the first shell is provided with a raw water inlet, a first produced water outlet and a concentrated water outlet;

the filter element is arranged in the first shell, a raw water inlet part of the filter element is communicated with the raw water inlet, the filter element is used for filtering raw water entering from the raw water inlet, a produced water output part of the filter element is communicated with the first produced water outlet, and a concentrated water output part of the filter element is communicated with the concentrated water outlet;

the second shell is connected with the first shell, a water storage space is formed in the second shell, the water storage space is communicated with the first water production outlet, and a second water production outlet and a compressed air inlet which are communicated with the water storage space are further formed in the second shell.

2. The filtration device of claim 1, wherein the filter element is a cylindrical body; a water production output part is arranged on the side surface of the filter element, two end parts of the side surface of the filter element are respectively in sealing fit with the inner wall of the first shell, a first water flow interval is arranged between the side surface of the filter element and the inner wall of the first shell, and the first water flow interval is communicated with the first water production outlet;

a raw water inlet part is arranged on the first end face of the filter element, a second water flow interval is arranged between the first end face of the filter element and the bottom end face of the first shell, and the second water flow interval is communicated with the raw water inlet;

the second end face of the filter element is provided with a concentrated water output part, a third water flow interval is arranged between the second end face of the filter element and the top end face of the first shell, and the third water flow interval is communicated with the concentrated water outlet.

3. The filtration device of claim 2, wherein the first housing comprises a first cylinder, a first end cap, and a second end cap; the bottom end of the first cylinder body is detachably connected with the first end cover, and the top end of the first cylinder body is detachably connected with the second end cover; the filter element is arranged in the first cylinder, and the two end parts of the side surface of the filter element are respectively in corresponding sealing fit with the inner walls of the two ends of the first cylinder; the side face of the filter element and the inner wall of the first cylinder are provided with the first water flow interval.

4. The filter device of claim 3, wherein the bottom end of the first cylinder is connected to the first end cap by a first clip; the top end of the first cylinder is connected with the second end cover through a second clamp; first clamp with the second clamp is health level's clamp.

5. The filter apparatus of claim 3, wherein the second end cap includes a bottom plate spaced opposite the concentrate output of the filter element, and a side plate disposed circumferentially about the bottom plate; the side plate is hermetically and closely sleeved outside the top end of the filter element; the side plate is provided with the first water production outlet along the axial direction of the first cylinder; and the side plate is also provided with a concentrated water outlet.

6. The filtration device of claim 2, further comprising a first positioning member and a second positioning member; the first positioning piece is arranged at the bottom end of the first shell and is used for limiting and abutting against the first end face of the filter element; the second positioning piece is arranged at the top end of the first shell and used for limiting and abutting against the second end face of the filter element.

7. The filtration device of claim 1, wherein the second housing comprises a second cylinder and a third end cap, wherein the bottom end of the second cylinder is connected with the top end of the first housing, and the top end of the second cylinder is detachably connected with the third end cap; the second water production outlet is formed in the third end cover, and the compressed air inlet is formed in the side wall of the second cylinder.

8. The filter device of claim 7, further comprising a third clip and a fourth clip; the bottom end of the second cylinder is connected with the top end of the first shell through a third hoop; the top end of the second cylinder is connected with the third end cover through a fourth hoop; the third clamp with the fourth clamp is health level's clamp.

9. The filtration apparatus of claim 1, wherein the filtration element is a microfiltration membrane, an ultrafiltration membrane, a nanofiltration membrane, a reverse osmosis membrane, a ceramic filter layer, a PTFE filter layer, or an activated carbon filter layer.

10. A filtration system, characterized in that it comprises a filtration device according to any one of claims 1 to 9.

Images