A filtration device and filtration system employing a plug-and-play flat sheet membrane module

Abstract

This utility model discloses a filtration device and system employing insert-type flat-plate membrane modules. By using Type I and Type II insert-type flat-plate membrane modules with different structural forms, three different structural filtration devices and systems are combined for different application scenarios, thereby making installation and maintenance more convenient and adaptable. Both the Type I and Type II insert-type flat-plate membrane modules include an upper connector, a lower connector, a grooved plate, and multiple membrane sheets. The two ends of the grooved plate are fixed to the upper and lower connectors, ensuring relative fixation between the upper and lower connectors. The multiple membrane sheets are fixed between the upper and lower connectors. The Type I insert-type flat-plate membrane module also has a water collection box installed at the upper end of the upper connector, which connects to the outlets of the multiple membrane sheets.

Description

Technical Field

[0001] This utility model relates to a filtration device for solid-liquid separation, specifically a filtration device and filtration system using a plug-in flat sheet membrane module. Background Technology

[0002] In various fine filtration fields, hollow sheet membranes made of organic or inorganic materials are commonly used as the filter medium. In practical applications, both ends of the sheet membrane are sealed with plugs, and a tubular interface is opened on one end of the plug, with the central hole of the interface communicating with the internal hole. The interface of each sheet membrane is connected to a water collection pipe via a quick connector, and then the water collection pipe is connected to the system's main water pipe. The inventors have described a scheme for filtration devices or systems composed of sheet membranes in patents ZL201720609067.4 ("A Combined Modular Structure Online Backwashing Sheet Ceramic Membrane Filtration System") and ZL201720608695.0 ("A Submerged Modular Structure Sheet Ceramic Membrane Filtration System"). In this filtration device and system, membrane modules are used instead of sheet membranes for assembly, greatly reducing on-site installation work, significantly increasing filtration flux, and improving backwashing efficiency. Two different structural methods are available to adapt to operation under positive or negative pressure conditions. However, the membrane sheets used in membrane modules are glued to the connectors to form a single unit. Since the membrane sheets and connectors are made of two different materials, delamination at the adhesive joints can easily occur during use, leading to leaks. The glued membrane module is a rigid structure mounted on the housing, making it susceptible to damage due to structural stress. This damage is particularly pronounced during positive pressure operation and backwashing. If one or more membrane sheets in the module are damaged, replacing a single sheet is extremely difficult, requiring replacement of the entire module, resulting in significant maintenance costs. Furthermore, the structural design of flat-sheet membrane modules, filtration devices, and filtration units cannot fully meet the requirements of all operating conditions. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a filtration device and system that uses insert-type flat sheet membrane modules, making installation and maintenance more convenient and adaptable.

[0004] The technical solution provided by this utility model is as follows: A filtration device includes a main water supply pipe, an I-type insert-type flat sheet membrane module, and a backwash main pipe. The main water supply pipe and the backwash main pipe are respectively equipped with a main water supply outlet valve and a backwash inlet valve. Multiple connecting branch pipes with insertion ports are connected in parallel between the main water supply pipe and the backwash main pipe. Multiple I-type insert-type flat sheet membrane modules are inserted into each insertion port, forming a matrix arrangement in rows and columns on a horizontal plane. Each I-type insert-type flat sheet membrane module includes an upper connector, a lower connector, a grooved plate, and multiple membrane sheets. The two ends of the grooved plate are fixed to the upper and lower connectors, ensuring relative fixation between the upper and lower connectors. The multiple membrane sheets are fixed between the upper and lower connectors. A water collection box is also installed at the upper end of the upper connector of each I-type insert-type flat sheet membrane module, and the water collection box is connected to the outlets of the multiple membrane sheets.

[0005] The water collection box is a semi-enclosed cavity with a flange structure. One end of the water collection box is connected to the outlet of multiple diaphragms, and the other end is equipped with a plug-in water outlet.

[0006] Each connecting branch pipe is equipped with multiple insert short tubes, with the insertion port located at the end of the insert short tube. Multiple type I insert flat sheet membrane modules are respectively connected to each insertion port of the connecting branch pipe through connecting sleeves and clamps.

[0007] It also includes a support frame and a membrane module bracket 1 located at the bottom of the support frame. The membrane module bracket 1 has a hollow structure with an opening at the center of the lower part of each type I insert flat sheet membrane module to facilitate the insertion of the protruding part at the bottom of the type I insert flat sheet membrane module.

[0008] A filtration device includes a housing, a type II insert-type flat sheet membrane module, a purified water outlet valve, and a backwash inlet valve. The upper part of the housing is a semi-enclosed purified water chamber, the bottom plate of which is a perforated plate. The type II insert-type flat sheet membrane module is inserted into the perforated plate and arranged in a matrix. The purified water outlet valve and the backwash inlet valve are arranged on either side of the purified water chamber. Each type II insert-type flat sheet membrane module includes an upper connector, a lower connector, a grooved plate, and multiple membranes. The two ends of the grooved plate are fixed to the upper and lower connectors, so that the upper and lower connectors are relatively fixed. The multiple membranes are fixed between the upper and lower connectors.

[0009] The lower part of the housing is a frame structure, and a membrane module bracket is provided at the bottom of the frame structure. The membrane module bracket is a hollow structure with a hole at the center of the lower part of each Type II insert flat sheet membrane module to facilitate the insertion of the protruding part at the bottom of the Type II insert flat sheet membrane module.

[0010] A filtration device includes a housing, a sludge discharge valve, a water inlet valve, a type II insert-type flat sheet membrane module, a purified water outlet valve, and a backwash inlet valve. The upper part of the housing is a semi-enclosed purified water chamber, the middle part is a filtration chamber, and the lower part is a conical hopper. The type II insert-type flat sheet membrane modules are inserted into the perforated plate of the purified water chamber and arranged in a matrix. The purified water outlet valve and the backwash inlet valve are arranged on either side of the purified water chamber, the water inlet valve is arranged on either side of the upper part of the conical hopper, and the sludge discharge valve is arranged at the lower end of the conical hopper. Each type II insert-type flat sheet membrane module includes an upper connector, a lower connector, a grooved plate, and multiple membranes. The two ends of the grooved plate are fixed to the upper and lower connectors, so that the upper and lower connectors are relatively fixed. The multiple membranes are fixed between the upper and lower connectors.

[0011] The lower part of the filter chamber is provided with a membrane module bracket three. The membrane module bracket three has a hollow structure and an opening at the center of the lower part of each Type II insert flat sheet membrane module to facilitate the insertion of the protruding part at the bottom of the Type II insert flat sheet membrane module.

[0012] The lower part of the second box is provided with support legs for fixing and supporting the second box.

[0013] A filtration system comprises multiple filtration devices of the same specifications and structure, wherein backwash ports and clean water ports are respectively connected to the system main pipe via valves, and the filtration devices are as described above.

[0014] This utility model adopts a filter device and filter system with insert-type flat sheet membrane modules. By using Type I insert-type flat sheet membrane modules and Type II insert-type flat sheet membrane modules with most components but different structural forms, three different structures of filter devices and filter systems can be provided for different application occasions, thereby making installation and maintenance more convenient and adaptable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the Type I insert-type flat sheet membrane assembly in this embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the Type II insert-type flat sheet membrane assembly in this embodiment of the present invention.

[0017] Figure 3 This is a front view of the filter device according to Embodiment 1 of this utility model.

[0018] Figure 4 yes Figure 3 Left view of the filter device shown.

[0019] Figure 5 yes Figure 3 The top view of the filter device shown.

[0020] Figure 6 This is a front view of the second filter device according to Embodiment 2 of this utility model.

[0021] Figure 7 yes Figure 6 The left view of the second filter device shown.

[0022] Figure 8 yes Figure 6 The top view of filter device two shown.

[0023] Figure 9 This is a front view of the third filter device according to Embodiment 3 of this utility model.

[0024] Figure 10 yes Figure 9 The left view of the filter device 3 shown.

[0025] Figure 11 yes Figure 9 The top view of filter device three shown.

[0026] Figure 12 It is by Figure 3 The diagram shows a structural schematic of a filtration system consisting of a filtration device. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] Figures 1-2 These are schematic diagrams of two different types of insert-type flat sheet membrane modules. Both insert-type flat sheet membrane modules include an upper connector 11, a lower connector 12, a grooved plate 13, and multiple membrane sheets 14. The two ends of the grooved plate 13 are fixed to the upper connector 11 and the lower connector 12, so that the upper connector 11 and the lower connector 12 are relatively fixed. The multiple membrane sheets 14 are fixed between the upper connector 11 and the lower connector 12.

[0029] Insert-type flat sheet membrane modules include Type I insert-type flat sheet membrane module 2 and Type II insert-type flat sheet membrane module 3.

[0030] The Type I insert-type flat sheet membrane module 2 is further equipped with a water collection box 15 on the upper end of the upper connector 11. The water collection box 15 is connected to the outlets of multiple membrane sheets 14. In this embodiment, the water collection box 15 is a semi-enclosed cavity with a flange structure. One end of the water collection box 15 is connected to the outlets of multiple membrane sheets 14, and the other end is provided with an insert-type water outlet 16, which can be directly connected to the insert port on the pipe through a sleeve and a clamp.

[0031] The Type II insert-type flat sheet membrane module 3 does not have a water collection box. It is inserted into the perforated plate of the water purification chamber of the box structure through the flange on the upper connector 11 and fixed with bolts.

[0032] Figures 3-5 This is a schematic diagram of the structure of a filter device in an embodiment of the present invention. The filter device includes a main water pipe 102, a main water outlet valve 101, a connecting branch pipe 103, a clamp 104, a connecting sleeve 105, an I-type insert flat sheet membrane module 106, a backwash main pipe 108, a backwash inlet valve 107, a support 109, and other parts.

[0033] Furthermore, multiple connecting branch pipes 103 are connected in parallel between the main water purification pipe 102 and the backwash main pipe 108. Each connecting branch pipe 103 has multiple insert short pipes. The type I insert flat sheet membrane module 106 is connected to each insert port of the connecting branch pipe 103 through connecting sleeves 105 and clamps 104, forming a matrix arrangement in rows and columns on the horizontal plane.

[0034] Furthermore, a clean water outlet valve 101 and a backwash inlet valve 107 are respectively installed on the inlet main pipe and the backwash main pipe 108, which can be opened and closed at different times by an electronic control device to achieve intermittent operation of filtration or backwashing.

[0035] Furthermore, the membrane module bracket 109-1 located at the bottom of the support 109 has a hollow structure with an opening at the center of the lower part of each type I insert flat sheet membrane module 106, which facilitates the insertion of the protruding part at the bottom of the type I insert flat sheet membrane module 106, thereby achieving positioning and anti-swaying functions.

[0036] Figures 6-8 This is a schematic diagram of the structure of the second filter device in this embodiment of the present invention. The second filter device includes a housing 201, a type II insert-type flat sheet membrane module 202, a purified water outlet valve 203, and a backwash inlet valve 204.

[0037] Furthermore, the upper part of the housing 201 is a semi-enclosed water purification chamber 201-2. The bottom plate of the water purification chamber 201-2 is a perforated plate 201-3. Type II insert-type flat sheet membrane modules 202 are inserted into the perforated plate 201-3, arranged in rows and columns in a matrix, and fixed with bolts. The upper part of the water purification chamber 201-2 is provided with an inspection door 201-1. The lower part of the housing 201 is a frame structure. The frame structure has a membrane module bracket 201-4 at the bottom, which is a hollow structure. An opening is made at the center position of the lower part of each Type II insert-type flat sheet membrane module 202 to facilitate the insertion of the protruding part at the bottom of the Type II insert-type flat sheet membrane module 202, so as to achieve positioning and anti-sway function.

[0038] Furthermore, the purified water outlet valve 203 and the backwash inlet valve 204 are arranged on either side of the purified water chamber 201-2, and are opened and closed at different times by an electronic control device to achieve intermittent operation of filtration or backwashing.

[0039] Figures 9-11This is a schematic diagram of the structure of the filter device three in this embodiment of the present invention. The filter device three includes a housing two 301, a slag discharge valve 303, a water inlet valve 306, a type II insert flat sheet membrane module two 302, a purified water outlet valve three 304, and a backwash water inlet valve three 306.

[0040] Furthermore, the upper part of housing 301 is a semi-enclosed water purification chamber 301-2, the middle part is a filter chamber 301-4, and the lower part is a conical hopper 301-6. Type II insert-type flat sheet membrane modules 302 are inserted into the perforated plate 301-3 of the water purification chamber 301-2, arranged in a matrix and fixed with bolts. The upper part of the water purification chamber 301-2 is provided with an inspection door 301-1. The lower part of the filter chamber is provided with a membrane module bracket 301-5, which is a hollow structure with an opening corresponding to the center position of the lower part of each Type II insert-type flat sheet membrane module 302, facilitating the insertion of the protruding part at the bottom of the Type II insert-type flat sheet membrane module 302, achieving positioning and anti-swaying functions.

[0041] Furthermore, the purified water outlet valve 304 and the backwash inlet valve 306 are arranged on either side of the purified water chamber 301-2, and are opened and closed at different times by an electronic control device to achieve intermittent operation of filtration or backwashing. The inlet valve 306 is arranged on either side of the upper part of the cone. The slag discharge valve is arranged at the lower end of the cone.

[0042] Furthermore, the lower part of the second box 301 is provided with support legs 301-7 for fixing and supporting the second box 301.

[0043] Figure 12 This is a large filtration system composed of multiple filter devices of the same specifications and structure as described in Embodiment 1, with the backwash port and clean water port connected to the system main pipe via valves. Filter devices 2 and 3 in Embodiments 2 and 3 can also be configured into filtration systems in a similar manner.

Claims

1. A filter apparatus employing a plug-and-play flat sheet membrane module, characterized by, The system includes a main water supply pipe, a type I insert flat sheet membrane module, and a backwash main pipe. The main water supply pipe and the backwash main pipe are each equipped with a main water supply outlet valve and a backwash inlet valve. Multiple connecting branch pipes with insertion ports are connected in parallel between the main water supply pipe and the backwash main pipe. Multiple type I insert flat sheet membrane modules are inserted into each insertion port, forming a matrix arrangement in rows and columns on a horizontal plane. Each type I insert flat sheet membrane module includes an upper connector, a lower connector, a grooved plate, and multiple membrane sheets. The two ends of the grooved plate are fixed to the upper and lower connectors, ensuring relative fixation between them. Multiple membrane sheets are fixed between the upper and lower connectors. A water collection box is also installed at the upper end of the upper connector of the type I insert flat sheet membrane module, and the water collection box is connected to the outlets of multiple membrane sheets.

2. The filter apparatus employing a plug-and-play flat sheet membrane module according to claim 1, wherein: The water collection box is a semi-enclosed cavity with a flange structure. One end of the water collection box is connected to the outlet of multiple diaphragms, and the other end is equipped with a plug-in water outlet.

3. The filter apparatus employing a plug-and-play flat sheet membrane module according to claim 1, wherein: Each connecting branch pipe is equipped with multiple insert short tubes, with the insertion port located at the end of the insert short tube. Multiple type I insert flat sheet membrane modules are respectively connected to each insertion port of the connecting branch pipe through connecting sleeves and clamps.

4. The filtration device employing an insert-type flat sheet membrane module according to claim 1, characterized in that: It also includes a support frame and a membrane module bracket 1 located at the bottom of the support frame. The membrane module bracket 1 has a hollow structure with an opening at the center of the lower part of each type I insert flat sheet membrane module to facilitate the insertion of the protruding part at the bottom of the type I insert flat sheet membrane module.

5. A filtration device employing an insert-type flat sheet membrane module, characterized in that, The device includes a housing, a type II insert-type flat sheet membrane module, a purified water outlet valve, and a backwash inlet valve. The upper part of the housing is a semi-enclosed purified water chamber, and the bottom plate of the purified water chamber is a perforated plate. The type II insert-type flat sheet membrane module is inserted into the perforated plate and arranged in a matrix. The purified water outlet valve and the backwash inlet valve are arranged on either side of the purified water chamber. Each type II insert-type flat sheet membrane module includes an upper connector, a lower connector, a grooved plate, and multiple membranes. The two ends of the grooved plate are fixed to the upper connector and the lower connector, so that the upper connector and the lower connector are relatively fixed. The multiple membranes are fixed between the upper connector and the lower connector.

6. The filtration device employing an insert-type flat sheet membrane module according to claim 5, characterized in that: The lower part of the housing is a frame structure, and a membrane module bracket 2 is provided at the bottom of the frame structure. The membrane module bracket 2 is a hollow structure with a hole corresponding to the center position of the lower part of each Type II insert flat sheet membrane module, so as to allow the protruding part at the bottom of the Type II insert flat sheet membrane module to be inserted.

7. A filtration device employing an insert-type flat sheet membrane module, characterized in that, The system includes a housing, a slag discharge valve, a water inlet valve, a type II insert-type flat sheet membrane module, a purified water outlet valve, and a backwash inlet valve. The upper part of the housing is a semi-enclosed purified water chamber, the middle part is a filtration chamber, and the lower part is a conical hopper. The type II insert-type flat sheet membrane module is inserted into the perforated plate of the purified water chamber and arranged in a matrix. The purified water outlet valve and the backwash inlet valve are arranged on either side of the purified water chamber, the water inlet valve is arranged on either side of the upper part of the conical hopper, and the slag discharge valve is arranged at the lower end of the conical hopper. Each type II insert-type flat sheet membrane module includes an upper connector, a lower connector, a grooved plate, and multiple membranes. The two ends of the grooved plate are fixed to the upper and lower connectors, so that the upper and lower connectors are relatively fixed. The multiple membranes are fixed between the upper and lower connectors.

8. The filtration device employing an insert-type flat sheet membrane module according to claim 7, characterized in that: The lower part of the filter chamber is provided with a membrane module bracket three. The membrane module bracket three has a hollow structure with an opening at the center of the lower part of each Type II insert flat sheet membrane module to facilitate the insertion of the protruding part at the bottom of the Type II insert flat sheet membrane module.

9. The filtration device employing an insert-type flat sheet membrane module according to claim 7, characterized in that: The lower part of the second box is provided with support legs for fixing and supporting the second box.

10. A filtration system, characterized in that: The system comprises multiple filter devices with the same specifications and structure, using insert-type flat sheet membrane modules, with backwash ports and clean water ports connected to the main system pipe via valves. The filter device using insert-type flat sheet membrane modules is the filter device using insert-type flat sheet membrane modules as described in any one of claims 1 to 9.

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