CN215138650U

CN215138650U - Tank type filter device

Info

Publication number: CN215138650U
Application number: CN202120643016.XU
Authority: CN
Inventors: 陈清; 陈忱; 陈良刚
Original assignee: Hainan Litree Purifying Technology Co Ltd
Current assignee: Hainan Litree Purifying Technology Co Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-12-14
Anticipated expiration: 2031-03-30

Abstract

The utility model relates to a jar type filter equipment, include: the filter comprises an upper cover, a tank body and a lower cover, wherein the tank body is detachably connected with the upper cover, the tank body is integrally connected with the lower cover, and the upper cover, the tank body and the lower cover form a filter cavity together; the lower cover is provided with a first water inlet and a first water outlet which are communicated with the filter cavity; the supporting component is detachably arranged on the inner wall of the filter cavity and is close to the lower cover; the plurality of filtering membrane assemblies are positioned in the filtering cavity and arranged on the supporting assembly; the main water production pipe is arranged on one side of the filtering membrane assemblies close to the upper cover, the main water production pipe is respectively communicated with the water production ports of the filtering membrane assemblies, and one end of the main water production pipe is communicated with the external space outside the tank body; the main intake pipe, main intake pipe and filtration membrane subassembly intercommunication, the one end of main intake pipe and the exterior space intercommunication outside the jar body. The device has high water purification efficiency, strong dirt-removing power and convenient installation.

Description

Tank type filter device

Technical Field

The utility model relates to a water purification technical field especially relates to jar type filter equipment.

Background

With the development of water treatment technology, more and more devices for purifying raw water by adopting tank type filtering devices are used.

However, there are three problems with existing canister type filtration devices: first, the existing filtration apparatus generally employs a single filtration membrane apparatus to purify raw water. In the process of purifying raw water by using a single filtering membrane device, on one hand, the water purifying efficiency of the purified raw water is influenced because the filtering membrane device is less; on the other hand, when the filtering membrane apparatus malfunctions, no other filtering membrane apparatus continues to operate, thus also affecting the water purification efficiency to some extent.

Secondly, although some of the prior art adopts a plurality of filtering membrane devices to purify raw water, fasteners such as screws are generally adopted to fix the ends of the filtering membrane components, and the design mode is complex in assembly and maintenance processes.

Thirdly, the existing filtering membrane equipment is complex in water production pipe arrangement and inconvenient for later maintenance and treatment; meanwhile, in the prior art, a part of tank type filtering equipment is not provided with a device for filtering membrane equipment decontamination treatment, or the structural arrangement of the decontamination device is complex, so that the tank type filtering equipment is inconvenient to install and maintain in later period.

SUMMERY OF THE UTILITY MODEL

Therefore, the tank type filtering device has the advantages of higher raw water purifying efficiency, stronger dirt removing capacity and convenience in installation.

A canister type filter apparatus, comprising:

the tank body is detachably connected with the upper cover, the tank body is integrally connected with the lower cover, and the upper cover, the tank body and the lower cover form a filter cavity together; the lower cover is provided with a first water inlet and a first water outlet which are communicated with the filter cavity;

the supporting assembly is detachably arranged on the inner wall of the filter cavity and is close to the lower cover;

a plurality of filter membrane modules positioned within the filter chamber and disposed on the support module;

the main water production pipe is arranged on one side, close to the upper cover, of the filtering membrane assemblies, is respectively communicated with the water production ports of the filtering membrane assemblies, and one end of the main water production pipe is communicated with the external space outside the tank body;

the main air inlet pipe is communicated with the filtering membrane assembly, and one end of the main air inlet pipe is communicated with an external space outside the tank body.

The utility model discloses in, form great filter chamber through upper cover, jar body and lower cover, can hold many filtration membrane subassemblies, can improve water purification efficiency. Because a plurality of filtering membrane assemblies work independently, when one filtering membrane assembly fails, the raw water can be continuously purified.

Secondly, the utility model discloses in adopt supporting component to support filtering membrane subassembly. Therefore, only the filtering membrane assembly needs to be placed on the supporting assembly, and the filtering membrane assembly is prevented from being fixed in the prior art in a fastening piece mode.

Finally, the utility model discloses in with main water pipe equipartition of producing put in the filtering membrane subassembly one side that is close to the upper cover, consequently the maintenance in the later stage of being more convenient for.

In one embodiment, an aerator is arranged on one side of each filtering membrane module close to the supporting module, and air inlets of the filtering membrane modules are respectively communicated with the aerators.

In one embodiment, the main air inlet pipe is arranged on one side of the plurality of filtering membrane assemblies close to the upper cover; the plurality of filtering membrane assemblies respectively comprise an air inlet and an air outlet; the pipe wall of the main air inlet pipe is respectively communicated with the air inlets of the plurality of filtering membrane assemblies, and the air outlet is communicated with the filtering cavity.

In one embodiment, an aerator is arranged on one side of each filtering membrane module close to the supporting module, and an air outlet of each filtering membrane module is communicated with the aerator.

In one embodiment, the canister-type filtration device further comprises a first shunt tube comprising a plurality of first shunt ports and a first drain;

the pipe wall of the main water production pipe is provided with a first connector which is communicated with the first discharge part; the plurality of first branch interfaces are respectively communicated with the water producing ports of the plurality of filtering membrane assemblies.

In one embodiment, the outer wall of the tank body is provided with a total water production interface; the tank type filtering equipment comprises a plurality of main water production pipes which are communicated with each other through a straight pipe; one end of each main water production pipe is communicated with the total water production interface.

In one embodiment, the tank-type filtration device further comprises a second shunt tube comprising a plurality of second shunt ports and a second drain;

the pipe wall of the main air inlet pipe is provided with a second connector which is communicated with the second discharge part;

the second branch interfaces are respectively communicated with the air inlets of the filtering membrane assemblies.

In one embodiment, the main air inlet pipe is arranged on one side of the filtering membrane assembly close to the lower cover; the supporting assembly comprises a plurality of supporting pipelines capable of conveying airflow and a plurality of plugs; the main air inlet pipe is communicated with the plurality of supporting pipelines;

both ends of the support pipelines are communicated with the external space outside the tank body, and the plugs block both ends of the support pipelines;

the supporting pipeline is provided with a plurality of air holes which are respectively communicated with the aerators of the plurality of filtering membrane assemblies in a one-to-one correspondence manner.

In one embodiment, the first water inlet and outlet is provided with a multi-way valve.

In one embodiment, the upper cover is provided with a second water inlet and outlet and an overflow port, and the second water inlet and outlet and the overflow port are both communicated with the filter cavity.

In one embodiment, the upper cover is provided with a maintenance opening and a first cover body for sealing the maintenance opening.

Drawings

Fig. 1 is a schematic view of an internal structure of a canister type filter device according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a canister type filter device according to an embodiment of the present invention;

FIG. 3 is a schematic view of the connection of a plurality of main water production pipes in FIG. 2;

fig. 4 is a schematic side view of a tank-type filtering device according to an embodiment of the present invention.

Reference numerals:

100. an upper cover; 110. a second water inlet and outlet; 120. an overflow port; 130. a maintenance port; 140. a first cover body; 150. lifting lugs;

200. a tank body; 210. a filter chamber; 220. a total water production interface;

300. a lower cover; 310. a first water inlet and outlet; 320. a support pillar;

400. a support assembly; 410. supporting the pipeline; 420. a plug; 430. a vent hole;

500. a filtration membrane module; 600. a main water production pipe; 610. a first interface; 620. a straight-through pipe;

700. a main air inlet pipe; 710. a second interface;

800. a first shunt pipe; 810. a first shunting interface; 820. a first discharge section;

900. a second shunt pipe; 910. a second shunting interface; 920. a second discharge portion.

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 present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

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 the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and 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 therefore, 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 skilled 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 being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first 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.

Referring to fig. 1, fig. 1 shows an internal structure schematic diagram of a tank type filtering apparatus in an embodiment of the present invention, an embodiment of the present invention provides a tank type filtering apparatus including: the filter comprises an upper cover 100, a tank body 200, a lower cover 300, a support assembly 400, a plurality of filter membrane assemblies 500, a main water production pipe 600 and a main air inlet pipe 700.

The water storage container is formed by the upper cover 100, the tank body 200 and the lower cover 300, so that the filtering membrane module 500 can purify raw water. One of the functions of the support assembly 400 is to support the filter membrane assembly 500. The main water production pipe 600 discharges raw water purified by the filtering membrane module 500, and the main air inlet pipe 700 guides high-pressure air flow into the filtering membrane module 500, so that bubbles generated by the high-pressure air flow and the raw water flush sludge or other impurities on the filtering membrane module 500.

Specifically, the can 200 is detachably coupled to the upper cover 100, and the can 200 is integrally coupled to the lower cover 300. The upper cap 100, the can 200 and the lower cap 300 together form a filter chamber 210. The connection between the tank 200 and the cover 100 may be a threaded connection, for example, threaded holes are respectively formed in the upper cover 100 and the tank 200, and then the threaded holes are locked by bolts. The can body 200 and the lower cap 300 may be welded, or the can body 200 and the lower cap 300 may be integrally formed in a casting process.

In order to improve the sealing performance of the filter chamber 210, a sealing member, such as a gasket, may be disposed between the can 200 and the top lid 100, so as to improve the sealing performance of the filter chamber 210.

The lower cover 300 is provided with a first inlet/outlet port 310 communicating with the filter chamber 210. When the raw water needs to be purified, the raw water is delivered into the filter chamber 210 along the first water inlet/outlet 310. When the purified water is finished or the filtering membrane module 500 needs to be repaired, raw water, sludge or other impurities in the filtering chamber 210 can be discharged from the first water inlet/outlet 310.

The support assembly 400 is detachably disposed at an inner wall of the filter chamber 210 near the lower cover 300. One of the functions of the support assembly 400 is to support a plurality of filter membrane assemblies 500, and in order to allow a larger space for installing the filter membrane assemblies 500 in the filter chamber 210, the design position of the support assembly 400 needs to be close to the lower cover 300.

A plurality of filter membrane modules 500 are positioned within filter cavity 210 and are disposed on support module 400. The filtering membrane module 500 purifies raw water, and when the filtering membrane module 500 is immersed in raw water in the filtering chamber 210, the purified raw water can enter the filtering membrane module 500 by using the osmosis of the filtering membrane module 500. That is, the purified raw water is located in the filtering membrane module 500, and the raw water that is not purified is located in the filtering chamber 210, and they do not contact each other.

The main water production pipe 600 is disposed at one side of the plurality of filtering membrane modules 500 near the upper cover 100, and the main water production pipe 600 is respectively communicated with water production ports (not shown) of the plurality of filtering membrane modules 500. That is, the filtered raw water is stored in the filtering membrane module 500, and the filtering membrane module 500 has a water storage chamber and a water producing port (both not shown), wherein the water producing chamber of the filtering membrane module 500 is communicated with the water producing port. So that the filtered raw water enters the main water producing pipe 600 through the water producing port. Wherein, one end of the main water production pipe 600 is communicated with the external space outside the tank 200. That is, the filtering membrane module 500 discharges the filtered raw water from the water producing port of the filtering membrane module 500 into the main water producing pipe 600. The process can be realized by pipeline connection, and the connection mode of the main water production pipe 600 and the water production port of the filtering membrane component 500 is sealed connection. In other words, raw water that is not purified in the filter chamber 210 is difficult to enter the main water production pipe 600 or the water production chamber of the filtering membrane assembly 500 through the connection between the main water production pipe 600 and the water production port of the filtering membrane assembly 500, so the raw water that is not purified in the filter chamber 210 does not pollute the purified raw water.

In addition, in order to improve water purification efficiency while reasonably arranging the plurality of filtering membrane modules 500, the plurality of filtering membrane modules 500 may be symmetrically distributed on both sides of the main water production pipe 600.

The main intake pipe 700 is communicated with the filtering membrane module 500, and one end of the main intake pipe 700 is communicated with an external space outside the tank 200. That is, by introducing the air flow to the end of the main air inlet pipe 700 located outside the tank 200, the air flow enters the filtering membrane module 500, and impurities attached to the surface of the filtering membrane module 500 can be removed.

Here detailed description the utility model discloses well jar type filter equipment's working process: raw water is introduced into the filter chamber 210 from the first water inlet/outlet port 310, and is delivered into the filter chamber 210 from the first water inlet/outlet port 310 by, for example, a hydraulic pump and related power elements, and the plurality of filter membrane modules 500 purify the raw water in the filter chamber 210, and discharge the purified raw water into the main product water pipe 600 from the product water port of the filter membrane module 500, and further to an external space outside the tank 200 through the main product water pipe 600. The suction pump may be connected to the main water production pipe 600 to generate a negative pressure in the main water production pipe 600, so as to filter the raw water entering the filter chamber 210.

When sludge or other impurities on the surface of the filtering membrane assembly 500 need to be removed through aeration, high-pressure air flow is introduced into the main air inlet pipe 700, and the impurities attached to the surface of the filtering membrane assembly 500 are removed after the air flow enters the filtering membrane assembly 500.

Meanwhile, impurities on the surface of the filtering membrane assembly 500 can be removed through backwashing. For example, the purified raw water is discharged into the filtering membrane module 500 along the main water production pipe 600, and impurities attached to the surface of the filtering membrane module 500 are removed by a vibration effect generated when the surface of the filtering membrane module 500 is washed by the water flow.

When the raw water or impurities in the filter chamber 210 need to be removed, the raw water or impurities in the filter chamber are discharged through the first water inlet/outlet 310. Thus, the water inlet and sewage discharge functions of the first water inlet/outlet 310 can be realized.

When the water purification process is finished or the maintenance of the filtering membrane assembly 500, the main water production pipe 600 or the main air inlet pipe 700 is required, the raw water, the sludge at the bottom of the filter chamber 210 or other impurities can be discharged from the first water inlet/outlet 310.

In the present embodiment, since a plurality of filtering membrane modules 500 are used, water purification efficiency can be improved as compared to a single water purification apparatus. Meanwhile, the stability of the water purification efficiency can be improved by adopting a plurality of independently working filtering membrane modules 500. For example, when a single water purifying apparatus is used, if a single apparatus fails, the water purifying process is interrupted, and a plurality of filtering membrane modules 500 are used to operate simultaneously, and if one of the filtering membrane modules is damaged, the operation of other filtering membrane modules 500 is not affected, so that the operation stability of the plurality of filtering membrane modules 500 is higher. And the main water production pipe 600 is disposed at a side close to the upper cover 100, which can facilitate the later maintenance of the main water production pipe 600. Finally, the support assembly 400 can better support a plurality of filter membrane assemblies 500, avoiding the problem of fastening the filter membrane assemblies 500 by using fastening devices in the conventional design.

In order to achieve a better aeration effect, in an embodiment, referring to fig. 1 and 2, a main air inlet pipe 700 is disposed on one side of the plurality of filtering membrane assemblies 500 close to the upper cover 100, the plurality of filtering membrane assemblies each include an air inlet (not shown) and an air outlet (not shown), a pipe wall of the main air inlet pipe 700 is respectively communicated with the air inlets (not shown) of the plurality of filtering membrane assemblies 500, and the air outlets of the filtering membrane assemblies 500 are communicated with the filtering cavities 210.

The main air inlet pipe 700 is mainly used for conveying high-pressure air flow, and the air flow and raw water generate an aeration effect, so that the purpose of flushing impurities on the surface of the filtering membrane assembly 500 is achieved. Specifically, the air flow enters the air inlet of the filter membrane assembly 500 from the main air inlet pipe 700, and is discharged into the filter chamber 210 from the air outlet of the filter membrane assembly 500. The high-pressure air flow reacts with the raw water in the filter chamber 210 to generate bubbles, and impurities on the surface of the filter membrane module 500 are washed by the bubbles.

While the main intake duct 700 is disposed at a side near the upper cover 100, it also facilitates simultaneous maintenance of the main water production pipe 600 and the main intake duct 700.

In order to achieve better aeration effect, in an embodiment, an aerator (not shown) is disposed on one side of each of the plurality of filtering membrane modules 500 close to the supporting module 400, and an air inlet of the filtering membrane module 500 is communicated with the aerator. Wherein the aerator is through the storage air current, and then can make air current and raw water produce bigger bubble, realizes the effect that erodees filter membrane module 500 better.

In order to simplify the connection structure between the plurality of filtering membrane modules 500 and the main water production pipe 600, in one embodiment, referring to fig. 2, the tank type filtering apparatus further includes a first shunt pipe 800. Wherein the first shunt tube 800 includes a plurality of first shunt ports 810 and a first drain 820. Wherein the plurality of first division interfaces 810 vertically communicate with the first discharge part 820. The pipe wall of the main water production pipe 600 is provided with a first connector 610, the first connector 610 is communicated with the first discharge part 820, and the plurality of first branch connectors 810 are communicated with the water production ports of the plurality of filtering membrane assemblies 500. The first branch interface 810 and the first discharge part 820 are vertically communicated, that is, when the first discharge part 820 is communicated with the first branch interface 810, the included angle between the first discharge part 820 and the first branch interface 810 is 90 degrees. After the plurality of filtering membrane modules 500 discharge the filtered raw water into the first bypass pipe 800, the first bypass pipe 800 can collectively discharge the filtered raw water into the main product water pipe 600. In this way, the plurality of filtering membrane modules 500 are all communicated with the main water production pipe 600 through the first discharge part 820 of the first shunt pipe 800, and a communication structure with the main water production pipe 600 does not need to be provided for each filtering membrane module 500, thereby reducing a connection structure between the filtering membrane module 500 and the main water production pipe 600. Meanwhile, a plurality of first connectors 610 can be further arranged along the axial direction of the main water production pipe 600, and the plurality of first shunt pipes 800 are respectively communicated with the first connectors 610 in a one-to-one correspondence manner.

When the number of the filtering membrane assemblies 500 is large, the drainage of a single main water production pipe 600 reaches a limit, and in order to ensure that the drainage efficiency is improved and simultaneously simplify the installation structure of the main water production pipe 600 in the tank 200, in one embodiment, referring to fig. 2 and 3, the outer wall of the tank 200 is provided with a total water production port 220, wherein the total water production port 220 is not communicated with the filtering chamber 210, and the tank type filtering apparatus comprises a plurality of main water production pipes 600. Wherein, a plurality of main water production pipes 600 are communicated with each other through the straight pipe 620, and one end of each of the main water production pipes 600 is communicated with the total water production interface 220. That is, one ends of the main water production pipes are respectively communicated with the external space outside the tank 200, and the filtered raw water is discharged into the total water production port 220.

When the number of the filtering membrane modules 500 is increased, the drainage efficiency of a single main water production pipe 600 is limited, and by providing a plurality of main water production pipes 600 communicated with each other, the diameter of the main water production pipe 600 is similarly increased, thus enabling the drainage efficiency to be increased. Wherein, a plurality of main water production pipes 600 communicated with each other are distributed along the extending direction of the upper cover 100 to the lower cover 300, so that the spatial distribution of the plurality of filtering membrane assemblies 500 in the horizontal direction is not affected, and the filtering membrane assemblies 500 can more fully utilize the space in the filtering chamber 210.

In order to simultaneously perform aeration cleaning on a plurality of filtering membrane modules 500 and simultaneously reduce the connection structure between the plurality of filtering membrane modules 500 and the main air inlet pipe 700, in an embodiment, referring to fig. 2, the tank type filtering apparatus further includes a second shunt pipe 900. Wherein the second shunt tube 900 includes a plurality of second shunt junctions 910 and a second drain 920. The pipe wall of the main air inlet pipe 700 is provided with a second connector 710, wherein the second connector 710 is communicated with a second discharge part 920, and the plurality of second branch connectors 910 are respectively communicated with the air inlets of the plurality of filtering membrane modules 500, so that the plurality of filtering membrane modules 500 can be simultaneously aerated and cleaned through the second branch pipes 900, and the connecting structure between the filtering membrane modules 500 and the main air inlet pipe 700 is reduced. Wherein the second shunt tube 900 may be similar in structure to the first shunt tube 800. Meanwhile, a plurality of second ports 710 may be disposed in an axial extension direction of the main intake pipe 700, and the plurality of second shunt pipes 900 are communicated with the second ports 710 in a one-to-one correspondence.

In another embodiment, the water producing port of the filtering membrane assembly 500 and the main water producing pipe 600, and the air inlet of the filtering membrane assembly 500 and the main air inlet pipe 700 are connected by hoses. The hose is adopted for connection, the arrangement position mode is more flexible, and meanwhile, the cost of the hose is lower.

In order to realize the aeration cleaning of the filtering membrane assembly 500, the utility model also provides another aeration mode, specifically, refer to fig. 4, main intake pipe 700 is arranged in one side that the filtering membrane assembly 500 is close to the lower cover 300, the supporting assembly 400 includes many supporting pipelines 410 and a plurality of end caps 420 that can carry the air current, main intake pipe 700 communicates with many supporting pipelines 410, many supporting pipelines 410's both ends all communicate with the exterior space outside the jar body 200, end caps 420 shutoff supporting pipelines 420's both ends, supporting pipelines 410 is equipped with a plurality of air vents 430, a plurality of air vents 430 communicate with a plurality of filtering membrane assembly 500's aerators one-to-one respectively.

That is, in this embodiment, the present invention employs aeration from below to clean the filtering membrane module 500. This is illustrated in two cases: first, in the operating condition, the plugs 420 plug the two ends of the supporting pipeline 410. When air flow is introduced into the main air inlet pipe 700, the air flow enters the support pipeline 410 from the main air inlet pipe 700 and enters the aerator of the filtering membrane module 500 from the air vent 430 on the support pipeline 410, so that the filtering membrane module 500 is aerated and cleaned.

Secondly, since the sludge in the filter chamber 210 may block the air vent 430, the water flow in the filter chamber 210 may be emptied, the plugs 420 may be removed from the two ends of the support pipe 410, and then the high-pressure water flow or air flow may be introduced into the main air inlet pipe 700, so that the sludge covering the surface of the air vent 430 may be removed.

Considering that the water purifying efficiency of the filtering membrane module 500 is limited, and the capacity of the filtering chamber 210 is limited when the raw water is continuously supplied into the filtering chamber 210, in an embodiment, the first water inlet/outlet 310 is provided with a multi-way valve (not shown). That is, when the amount of raw water in the filter chamber 210 is excessive, the multi-way valve of the first inlet/outlet 310 may be switched to appropriately discharge the excessive raw water. That is, the function of "go down in and go down out" is realized through the first water inlet 310.

In another embodiment, referring to fig. 2, the upper cover 100 is provided with a second water inlet/outlet 110 and an overflow port 120, and both the second water inlet/outlet 110 and the overflow port 120 are communicated with the filter cavity 210. This embodiment adopts the concept of "top in bottom out", that is, raw water enters the filter chamber 210 through the second water inlet 110 and is discharged from the first water inlet/outlet 310. The advantage of this design is that raw water can wash away the debris that filter membrane module 500 surface adheres to when getting into from second water inlet 110, consequently can play the effect of better supplementary washing filter membrane module 500. The overflow port 120 can discharge excess water flow in the filter chamber 210 in a reliable manner, and can discharge the aerated air flow from the overflow port 120, thereby reducing the air pressure in the filter chamber 210.

The first water inlet/outlet 310 and the second water inlet/outlet 110 can be combined with each other by water inlet and water discharge, for example, "upper inlet/outlet and upper outlet" or "lower inlet/outlet and upper outlet" and the like.

In order to better repair the filtering membrane module 500, the main water production pipe 600 and the main air inlet pipe 700 in the filtering chamber 210, in one embodiment, referring to fig. 2, the upper cover 100 is provided with a repair opening 130 and a first cover body 140 for sealing the repair opening 130. Wherein the service opening 130 and the first cover 140 can be connected by screw threads or hinged. When the filter membrane module 500, the main water production pipe 600 and the main air inlet pipe 700 need to be repaired, the first cover 140 can be removed from the repair opening 130, and then a repair person can enter the filter chamber 210 from the repair opening 130 to complete the related repair work.

To better support and stabilize the canister filter assembly, in one embodiment, referring to FIG. 2, the bottom cover 300 is provided with a plurality of support posts 320. Preferably, the number of the support columns 320 is 4.

In order to improve the mobility of the canister type filter device, in one embodiment, as shown in fig. 2, the upper cover 100 is provided with a plurality of lifting lugs 150. When the tank type filtering device needs to be moved, the lifting lugs 150 can be lifted by a crane. Preferably, the number of the lifting lugs 150 is 3.

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

The above-mentioned embodiments only represent some 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 spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A canister type filter device, characterized in that it comprises:

2. The canister type filter apparatus according to claim 1, wherein the main intake duct is disposed at a side of the plurality of filter membrane modules adjacent to the upper cover; the plurality of filtering membrane assemblies respectively comprise an air inlet and an air outlet; the pipe wall of the main air inlet pipe is respectively communicated with the air inlets of the plurality of filtering membrane assemblies, and the air outlet is communicated with the filtering cavity.

3. The tank type filtering apparatus according to claim 2, wherein each of said filtering membrane modules is provided with an aerator on a side thereof adjacent to said supporting module, and an air outlet of said filtering membrane module is communicated with said aerator.

4. The canister type filter apparatus of claim 1 further comprising a first shunt tube comprising a plurality of first shunt ports and a first drain;

5. The canister filter apparatus of claim 4, wherein the outer wall of the canister body is provided with a total water production interface; the tank type filtering device comprises a plurality of main water production pipes which are communicated with each other through a straight pipe; one end of each main water production pipe is communicated with the total water production interface.

6. The canister type filter apparatus of claim 2, further comprising a second shunt tube comprising a plurality of second shunt ports and a second drain;

7. The canister type filter arrangement according to claim 3, wherein the main inlet duct is arranged at a side of the filter membrane module close to the lower cover; the supporting assembly comprises a plurality of supporting pipelines capable of conveying airflow and a plurality of plugs; the main air inlet pipe is communicated with the plurality of supporting pipelines;

8. The canister type filter arrangement according to claim 1, wherein the first inlet and outlet is provided with a multi-way valve.

9. The canister type filter apparatus of claim 1, wherein the upper cover is provided with a second water inlet and outlet and an overflow port, both of which are in communication with the filter cavity.

10. The canister type filter apparatus of claim 1, wherein the upper cover is provided with a service opening and a first cover body sealing the service opening.