Ultrafiltration membrane tank modification device

Abstract

An ultrafiltration membrane tank modification device, comprising a mounting assembly, a sealing assembly and a convenience assembly. The mounting assembly comprises an accommodating member, a joining member and a fastener, wherein the joining member is arranged on the accommodating member, and the fastener is arranged on the joining member. The sealing assembly comprises an entry member, a pressure relief member and a filling member, wherein the entry member is arranged on the joining member, the pressure relief member is arranged on the entry member, and the filling member is arranged on the joining member. The convenience assembly comprises a placement member, an auxiliary member and a lifting member, wherein the placement member is arranged on the accommodating member, the auxiliary member is arranged on the placement member, and the lifting member is arranged on the auxiliary member. By means of the interaction of the mounting assembly, the sealing assembly and the convenience assembly, the inner wall of an existing membrane tank can be relined with stainless steel. By modifying and applying an anti-corrosion treatment to the inner wall of the ultrafiltration membrane tank, it is ensured that no leakage occurs during water production and backwashing operations, thereby improving the reliability of a boiler feedwater system.

Description

An ultrafiltration membrane tank modification device Technical Field

[0001] This invention relates to the technical field of ultrafiltration membrane tanks, and more particularly to an ultrafiltration membrane tank modification device. Background Technology

[0002] Boiler feedwater treatment system: pre-desalination system and ion exchange desalination system. The pre-desalination system includes: ultrafiltration system, reverse osmosis system, chemical dosing system, chemical cleaning system, compressed air system, etc.

[0003] The submerged continuous membrane filtration system (CMF-S) is a membrane filtration technology used to remove particles larger than 0.05 micrometers in diameter from liquids. The CMF-S unit is a self-cleaning system using hollow fiber membranes. The filtration process involves the suction of an ultrafiltration permeate pump, which draws raw water through the outside of the hollow fiber membrane fibers into the inner cavity of the fibers. Clean water passes through the porous membrane wall, while solid particles from the raw water are retained on the outside of the hollow fiber membrane fibers.

[0004] The ultrafiltration membrane tank currently has many leakage points. The material used during the construction period was found to be scrap steel, which does not meet the technical specifications. During the defect elimination process, it is impossible to weld from the outer wall of the membrane tank, which easily causes radial cracks. Due to the material problem, the membrane tank experienced secondary leakage in a short period of time after the treatment. The anti-corrosion layer at the weld is easily damaged, causing the membrane tank to corrode and leak. Summary of the Invention

[0005] Given that the existing ultrafiltration membrane tanks currently have many leakage points, and because the materials used during the construction period were found to be scrap steel which does not meet the technical specifications, it is impossible to weld from the outer wall of the membrane tank during the defect elimination process, which easily causes radial cracks. Due to the material problem, the membrane tank will leak again in a short time after the treatment. The anti-corrosion layer at the weld is easily damaged, causing the membrane tank to corrode and leak. Therefore, this invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an ultrafiltration membrane tank modification device.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an ultrafiltration membrane tank modification device, comprising,

[0008] The mounting components include a receiving element, a splicing element, and a fastening element, wherein the splicing element is disposed on the receiving element, and the fastening element is disposed on the splicing element;

[0009] A sealing assembly includes an inlet, a pressure relief component, and a filler component, wherein the inlet is disposed on the splice, the pressure relief component is disposed on the inlet, and the filler component is disposed on the splice; and,

[0010] A convenient component includes a placement member, an auxiliary member, and a lifting member, wherein the placement member is disposed on the receiving member, the auxiliary member is disposed on the placement member, and the lifting member is disposed on the auxiliary member.

[0011] As a preferred embodiment of the ultrafiltration membrane tank modification device of the present invention, the accommodating component includes a tank body to be modified, an outlet on the tank body, the outlet having a door and being welded to one side of the outlet, thus facilitating water discharge from the tank body.

[0012] As a preferred embodiment of the ultrafiltration membrane tank modification device of the present invention, the splicing component includes a first iron plate welded to one side of the tank body, a second iron plate welded to the tank body on one side of the first iron plate, a first splicing plate fixedly connected to the upper side of the second iron plate, and a second splicing plate fixedly connected to the lower side of the second iron plate. There are four first iron plates and two iron plates, and each first iron plate and second iron plate is welded to one side of the tank body. The first iron plate and the second iron plate are made of stainless steel.

[0013] As a preferred embodiment of the ultrafiltration membrane tank modification device of the present invention, the fastening component includes a fastening groove opened on the first iron plate. There are two fastening grooves, which correspond to the positions of the first splicing plate and the second splicing plate, respectively. A connecting plate is fixedly connected to the second splicing plate. The number of connecting plates is the same as the number of fastening grooves. A fastening plate is fixedly connected to the connecting plate. A first spring is fixedly connected to the second splicing plate and is located on one side of the connecting plate. A filling plate is fixedly connected to the first spring.

[0014] As a preferred embodiment of the ultrafiltration membrane tank modification device of the present invention, the inlet includes a first sealing groove opened on the upper side of the first iron plate and a second sealing groove opened on the lower side of the second iron plate. The first sealing groove and the second sealing groove are both opened on the side where the first iron plate and the second iron plate are joined. The cross-section of the first sealing groove and the second sealing groove is a trapezoidal structure. The upper width of the first sealing groove and the second sealing groove is smaller than the lower width.

[0015] As a preferred embodiment of the ultrafiltration membrane tank modification device of the present invention, the pressure relief component includes a first filling surface on the first sealing groove, a second filling surface on the second sealing groove, the first filling surface and the second filling surface, both the first filling surface and the second filling surface are trapezoidal structures and their upper width is greater than their lower width, the first iron plate has a pressure relief groove on the lower side of the first filling surface, and the pressure relief groove is connected to the first sealing groove.

[0016] As a preferred embodiment of the ultrafiltration membrane tank modification device of the present invention, the filling element includes a first sealing block fixedly connected to the second iron plate and a second sealing block fixedly connected to the second iron plate. The first sealing block and the second sealing block correspond to the positions of the first sealing groove and the second sealing groove, respectively. The upper width of the first sealing block and the second sealing block is greater than the lower width, so that the first sealing block and the second sealing block completely enter the first filling surface and the second filling surface.

[0017] As a preferred embodiment of the ultrafiltration membrane tank modification device of the present invention, the placement component includes an ultrafiltration membrane body placed in the tank body, the number of ultrafiltration membrane bodies is several, the several ultrafiltration membrane bodies are connected by an installation pipe, the two sides of the installation pipe are connected by an installation plate, the ultrafiltration membrane bodies in the tank body are assembled by the installation plate and the installation pipe, and the connection of the ultrafiltration membrane bodies is all made by stainless steel flanges.

[0018] As a preferred embodiment of the ultrafiltration membrane tank modification device of the present invention, the auxiliary component includes a first arc plate fixedly connected to the mounting pipe, a second arc plate fixedly connected to the mounting plate, the first arc plate and the second arc plate are staggered, and a locking block is fixedly connected at the overlapping position of the first arc plate and the second arc plate.

[0019] As a preferred embodiment of the ultrafiltration membrane tank modification device of the present invention, the lifting component includes a lifting cable fixedly connected to the locking block, a rotating shaft fixedly connected to the lifting cable, a bracket rotatably connected to the rotating shaft, the bracket being fixedly connected to both sides of the tank body, the bracket having a certain height, a rotating handle rotatably connected to the bracket, and the rotating handle being fixedly connected to the rotating shaft.

[0020] The beneficial effects of this invention are as follows: Through the interaction between the installation components, sealing components, and convenient components, the inner wall of the existing membrane tank can be re-treated, stainless steel lining plates can be added, and the tank body can be externally protected against corrosion. After the inner wall of the ultrafiltration membrane tank is modified and protected against corrosion, it is ensured that there is no leakage during water production and backwashing during operation, thereby improving the reliability of the boiler feedwater system. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 is a schematic diagram of the overall structure of an ultrafiltration membrane tank modification device according to the present invention.

[0023] Figure 2 is a schematic diagram of the splicing structure of an ultrafiltration membrane tank modification device according to the present invention.

[0024] Figure 3 is a schematic diagram of the installation components of an ultrafiltration membrane tank modification device according to the present invention.

[0025] Figure 4 is a schematic diagram of the fastener structure of an ultrafiltration membrane tank modification device according to the present invention.

[0026] Figure 5 is a schematic diagram of the entry component structure of an ultrafiltration membrane tank modification device according to the present invention.

[0027] Figure 6 is a schematic diagram of the pressure relief component of an ultrafiltration membrane tank modification device according to the present invention.

[0028] Figure 7 is a schematic diagram of the packing structure of an ultrafiltration membrane tank modification device according to the present invention.

[0029] Figure 8 is a schematic diagram of the convenient component structure of an ultrafiltration membrane pool modification device according to the present invention. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include the three-dimensional spatial dimensions of length, width, and depth.

[0034] Example 1

[0035] Referring to Figures 1-4, the first embodiment of the present invention provides an ultrafiltration membrane tank modification device. This device includes an installation assembly 100, comprising a receiving component 101, a splicing component 102, and a fastening component 103. The splicing component 102 is disposed on the receiving component 101, and the fastening component 103 is disposed on the splicing component 102. Through the interaction between the receiving component 101, the splicing component 102, and the fastening component 103, a stainless steel plate can be added to the inner wall of the entire tank body 101a, while reducing the number of welding positions and improving the overall stability of the device.

[0036] Specifically, the container 101 includes a pool body 101a to be modified. The outer wall of the pool body 101a is coated with anti-corrosion paint to extend the service life of the pool body 101a and protect it from corrosion. The pool body 101a has an outlet 101b with a door, which is welded to one side of the outlet 101b, so that the pool body 101a can be drained easily.

[0037] Furthermore, the splicing component 102 includes a first iron plate 102a welded to one side of the pool body 101a, a second iron plate 102b welded to the pool body 101a on the side of the first iron plate 102a, a first splicing plate 102c fixedly connected to the upper side of the second iron plate 102b, and a second splicing plate 102d fixedly connected to the lower side of the second iron plate 102b. There are four first iron plates 102a and two iron plates 102b, each of which is welded to one side of the pool body 101a. The first iron plates 102a and two iron plates 102b are made of stainless steel, thus further reinforcing the interior of the entire pool body 101a. Argon arc welding is used for the whole process. The first iron plates 102a and two iron plates 102b are made of 316L steel plates with a thickness of ≥5mm.

[0038] Furthermore, the fastener 103 includes a fastening groove 103a on the first iron plate 102a. There are two fastening grooves 103a, corresponding to the positions of the first splicing plate 102c and the second splicing plate 102d, respectively. The groove shape of the fastening groove 103a in the top view is the number "7". Thus, the fastening groove 103a forms an inlet and a fastening opening on the first iron plate 102a. A connecting plate 103b is fixedly connected to the second splicing plate 102d. The number of connecting plates 103b is the same as that of the fastening grooves 103a. A fastening plate 103c is fixedly connected to the connecting plate 103b. The fastening plate 103c enters through the inlet on the fastening groove 103a. In the snap-fit ​​opening, the entire process is a movement from left to right and then from front to back. This process causes the connecting plate 103b to snap onto the first iron plate 102a. The second splicing plate 102d is fixedly connected to the first spring 103d and is located on one side of the connecting plate 103b. The filling plate 103e is fixedly connected to the first spring 103d. The length of the filling plate 103e and the total length of the snap-fit ​​plate 103c are convenient to fill the entire snap-fit ​​groove 103a, so that the first splicing plate 102c and the second splicing plate 102d are fixed onto the first iron plate 102a. Furthermore, the second iron plate 102b is spliced ​​with the first iron plate 102a, which is convenient to fill one side of the entire pool body 101a.

[0039] During operation, the first iron plate 102a and the second iron plate 102b are welded to one side of the pool body 101a. Each of the first iron plate 102a and the second iron plate 102b is made of stainless steel, and there are four of them, evenly distributed around the pool body 101a to reinforce the interior of the pool body 101a. The first iron plate 102a and the second iron plate 102b are welded to the pool body 101a. Then, the first splicing plate 102c is fixedly connected to the upper side of the second iron plate 102b, and the second splicing plate 102d is fixedly connected to the lower side. Two snap-fit ​​slots 103a are made on the first iron plate 102a, and the number of snap-fit ​​slots 103a corresponds to the position of the first splicing plate 102c and the second splicing plate 102d. The connecting plate 103b is fixedly connected to the second splicing plate 102d, and the number of each connecting plate 103b is the same as the number of snap-fit ​​slots 103a. A snap-fit ​​plate 103c is fixedly connected to the connecting plate 103b. The snap-fit ​​plate 103c enters the snap-fit ​​hole through the inlet of the snap-fit ​​groove 103a, thereby fixing the connecting plate 103b to the first iron plate 102a. A first spring 103d is fixedly connected to the second splicing plate 102d, and the spring is located on one side of the connecting plate 103b. A filler plate 103e is fixedly connected to the first spring 103d, and the length of the filler plate 103e matches the total length of the snap-fit ​​plates 103c. This is done to fill the entire snap-fit ​​groove 103a, ensuring that the first splicing plate 102c and the second splicing plate 102d are fixed to the first iron plate 102a. Through the above steps, the splicing of the second iron plate 102b and the first iron plate 102a is achieved, filling one side of the entire pool body 101a, completing the installation of the stainless steel plate on the inner wall of the pool body 101a. After all the installations are completed, check whether all welding points and snap-fit ​​connections are firm, and conduct a water discharge test to ensure the sealing of the outlet 101b and the door.

[0040] Example 2

[0041] Referring to Figures 1-7, the first embodiment of the present invention provides an ultrafiltration membrane tank modification device. This device includes an installation component 100, which includes a receiving component 101, a splicing component 102, and a fastening component 103. The splicing component 102 is disposed on the receiving component 101, and the fastening component 103 is disposed on the splicing component 102.

[0042] Specifically, the entry component 201 includes a first sealing groove 201a opened on the upper side of the first iron plate 102a and a second sealing groove 201b opened on the lower side of the second iron plate 102b. Both the first sealing groove 201a and the second sealing groove 201b are opened on the side where the first iron plate 102a and the second iron plate 102b are joined. The cross-section of the first sealing groove 201a and the second sealing groove 201b is a trapezoidal structure, and the upper width of the first sealing groove 201a and the second sealing groove 201b is smaller than the lower width.

[0043] Furthermore, the pressure relief component 202 includes a first filling surface 202a on the first sealing groove 201a and a second filling surface 202b on the second sealing groove 201b. The first filling surface 202a and the second filling surface 202b are both trapezoidal structures with their upper width being greater than their lower width. The first iron plate 102a has a pressure relief groove 202c on the lower side of the first filling surface 202a. The pressure relief groove 202c is connected to the first sealing groove 201a.

[0044] Furthermore, the filler 203 includes a first sealing block 203a fixedly connected to the second iron plate 102b, and a second sealing block 203b fixedly connected to the second iron plate 102b. The first sealing block 203a and the second sealing block 203b correspond to the positions of the first sealing groove 201a and the second sealing groove 201b, respectively. The upper width of the first sealing block 203a and the second sealing block 203b is greater than the lower width, so that the first sealing block 203a and the second sealing block 203b completely enter the first filling surface 20. On the second filling surface 202b, and due to the design of the first sealing groove 201a and the second sealing groove 201b, after the first sealing block 203a and the second sealing block 203b enter, the side of the first iron plate 102a forms a gradually decreasing gap from top to bottom, leaving an inclined slit, which facilitates the liquid in the pool 101a to flow back into the pool 101a through the slit, thereby reducing the pressure of the liquid on the first iron plate 102a and the second iron plate 102b.

[0045] During operation, the installation between the first iron plate 102a and the second iron plate 102b further enables the first sealing block 203a and the second sealing block 203b on the second iron plate 102b to enter the first sealing groove 201a and the second sealing groove 201b on the first iron plate 102a, thus completing the installation of a stainless steel plate on the inner wall of the pool body 101a. At the same time, it ensures that the liquid pressure is effectively controlled and protects the first iron plate 102a and the second iron plate 102b from excessive pressure.

[0046] Example 3

[0047] Referring to Figures 1-8, the first embodiment of the present invention provides an ultrafiltration membrane tank modification device. This device includes a convenient component 300, which includes a placement component 301, an auxiliary component 302, and a lifting component 303. The placement component 301 is disposed on the receiving component 101, the auxiliary component 302 is disposed on the placement component 301, and the lifting component 303 is disposed on the auxiliary component 302.

[0048] Specifically, the placement component 301 includes an ultrafiltration membrane 301a placed inside the tank body 101a. There are several ultrafiltration membranes 301a, which are connected by mounting pipes 301b. The two sides of the mounting pipes 301b are connected by mounting plates 301c. The ultrafiltration membranes 301a inside the tank body 101a are assembled through the mounting plates 301c and the mounting pipes 301b. All connections of the ultrafiltration membranes 301a are made using stainless steel flanges.

[0049] Furthermore, the auxiliary component 302 includes a first arc plate 302a fixedly connected to the mounting tube 301b, and a second arc plate 302b fixedly connected to the mounting plate 301c. The first arc plate 302a and the second arc plate 302b are staggered and partially overlap in the top view. The overlapping part is provided with a certain groove. A locking block 302c is fixedly connected at the overlapping position of the first arc plate 302a and the second arc plate 302b. The locking block 302c enables the first arc plate 302a and the second arc plate 302b to be positioned.

[0050] Furthermore, the lifting component 303 includes a lifting cable 303a fixedly connected to the locking block 302c, a rotating shaft 303b fixedly connected to the lifting cable 303a, and the rotation of the rotating shaft 303b enables the lifting cable 303a to be wound up or lowered. The rotating shaft 303b is rotatably connected to a bracket 303c, which is fixedly connected to both sides of the pool body 101a. The bracket 303c has a certain height, and a rotating handle 303d is rotatably connected to the bracket 303c. The rotating handle 303d is fixedly connected to the rotating shaft 303b. Rotating the rotating handle 303d causes the rotating shaft 303b to rotate, which drives the lifting cable 303a to be wound up. This facilitates the lifting of the ultrafiltration membrane 301a within the entire pool body 101a by winding up the lifting cable 303a, making it easier to process or maintain the contents of the pool body 101a, as well as to clean or replace the ultrafiltration membrane 301a.

[0051] During operation, several ultrafiltration membranes 301a are first placed inside the tank 101a and connected to each other via mounting pipes 301b. Each mounting pipe 301b is fixedly connected to both sides by mounting plates 301c to ensure stable assembly of the entire ultrafiltration membrane 301a. All connections use stainless steel flanges to ensure sealing and corrosion resistance. A first arc plate 302a is fixedly connected to the mounting pipe 301b, and a second arc plate 302b is fixedly connected to the mounting plate 301c. The first arc plate 302a and the second arc plate 302b are staggered, partially overlapping in the top view, with slots formed in the overlapping area. A locking block 302c is fixedly connected at the overlapping position of the first arc plate 302a and the second arc plate 302b to achieve positioning. A lifting cable 303a is fixedly connected to 2c, and a rotating shaft 303b is fixedly connected to the lifting cable 303a. The rotation of the rotating shaft 303b can control the winding or lowering of the lifting cable 303a. The bracket 303c, which is rotatably connected to the rotating shaft 303b, is fixed on both sides of the tank body 101a. The bracket 303c has a certain height to meet the operation needs. A rotating handle 303d is rotatably connected to the bracket 303c. The rotating handle 303d is fixedly connected to the rotating shaft 303b. By rotating the rotating handle 303d, the rotating shaft 303b is rotated, which drives the lifting cable 303a to wind up. This operation can lift the ultrafiltration membrane 301a in the entire tank body 101a, which is convenient for processing or maintenance in the tank body 101a, and also convenient for cleaning or replacing the ultrafiltration membrane 301a. When it is necessary to put the ultrafiltration membrane 301a back into the tank 101a, the handle 303d can be rotated in the reverse direction to lower the lifting cable 303a, and the ultrafiltration membrane 301a will then be lowered back into the tank 101a.

[0052] The entire operation process requires ensuring that all components are correctly installed and secured. The winding and lowering operations of the rotating shaft cylinder 303b and the lifting cable 303a must be smooth to protect the ultrafiltration membrane 301a from damage and ensure the safety of the operators.

[0053] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., variations in the size, scale, structure, shape, and proportion of various elements, as well as parameter values, mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, changes, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for modifying an ultrafiltration membrane tank, characterized in that: include, The mounting assembly (100) includes a receiving part (101), a splicing part (102), and a fastener (103), wherein the splicing part (102) is disposed on the receiving part (101), and the fastener (103) is disposed on the splicing part (102); A sealing assembly (200) includes an inlet (201), a pressure relief component (202), and a filler (203), wherein the inlet (201) is disposed on the splice (102), the pressure relief component (202) is disposed on the inlet (201), and the filler (203) is disposed on the splice (102); and, The convenient component (300) includes a placement member (301), an auxiliary member (302), and a lifting member (303), wherein the placement member (301) is disposed on the receiving member (101), the auxiliary member (302) is disposed on the placement member (301), and the lifting member (303) is disposed on the auxiliary member (302).

2. The ultrafiltration membrane tank modification device according to claim 1, characterized in that: The accommodating component (101) includes a pool body (101a) to be modified, and an outlet (101b) opened on the pool body (101a). The outlet (101b) is equipped with a door and is welded to one side of the outlet (101b), which makes it easy to drain water from the pool body (101a).

3. The ultrafiltration membrane tank modification device according to claim 2, characterized in that: The splicing component (102) includes a first iron plate (102a) welded to one side of the pool body (101a), a second iron plate (102b) welded to the pool body (101a) on one side of the first iron plate (102a), a first splicing plate (102c) fixedly connected to the upper side of the second iron plate (102b), and a second splicing plate (102d) fixedly connected to the lower side of the second iron plate (102b). There are four first iron plates (102a) and two iron plates (102b). Each first iron plate (102a) and second iron plate (102b) is welded to one side of the pool body (101a). The first iron plate (102a) and the second iron plate (102b) are made of stainless steel.

4. The ultrafiltration membrane tank modification device according to claim 3, characterized in that: The fastener (103) includes a fastening groove (103a) opened on the first iron plate (102a). There are two fastening grooves (103a), which correspond to the positions of the first splicing plate (102c) and the second splicing plate (102d), respectively. A connecting plate (103b) is fixedly connected to the second splicing plate (102d). The number of connecting plates (103b) is the same as the number of fastening grooves (103a). A fastening plate (103c) is fixedly connected to the connecting plate (103b). A first spring (103d) is fixedly connected to the second splicing plate (102d) and is located on one side of the connecting plate (103b). A filling plate (103e) is fixedly connected to the first spring (103d).

5. The ultrafiltration membrane tank modification device according to claim 3 or 4, characterized in that: The entry component (201) includes a first sealing groove (201a) opened on the upper side of the first iron plate (102a) and a second sealing groove (201b) opened on the lower side of the second iron plate (102b). The first sealing groove (201a) and the second sealing groove (201b) are both opened on the side where the first iron plate (102a) and the second iron plate (102b) are joined. The cross-section of the first sealing groove (201a) and the second sealing groove (201b) is a trapezoidal structure. The upper width of the first sealing groove (201a) and the second sealing groove (201b) is smaller than the lower width.

6. The ultrafiltration membrane tank modification device according to claim 5, characterized in that: The pressure relief component (202) includes a first filling surface (202a) on the first sealing groove (201a) and a second filling surface (202b) on the second sealing groove (201b). The first filling surface (202a) and the second filling surface (202b) are both trapezoidal structures with their upper width being greater than their lower width. The first iron plate (102a) has a pressure relief groove (202c) on the lower side of the first filling surface (202a). The pressure relief groove (202c) is connected to the first sealing groove (201a).

7. The ultrafiltration membrane tank modification device according to claim 6, characterized in that: The filler (203) includes a first sealing block (203a) fixedly connected to the second iron plate (102b) and a second sealing block (203b) fixedly connected to the second iron plate (102b). The first sealing block (203a) and the second sealing block (203b) correspond to the positions of the first sealing groove (201a) and the second sealing groove (201b), respectively. The upper width of the first sealing block (203a) and the second sealing block (203b) is greater than the lower width, so that the first sealing block (203a) and the second sealing block (203b) completely enter the first filling surface (202a) and the second filling surface (202b).

8. The ultrafiltration membrane tank modification device according to claim 6 or 7, characterized in that: The placement component (301) includes an ultrafiltration membrane (301a) placed inside the pool body (101a). There are several ultrafiltration membranes (301a), and the several ultrafiltration membranes (301a) are connected by mounting tubes (301b). The two sides of the mounting tubes (301b) are connected by mounting plates (301c). The ultrafiltration membranes (301a) inside the pool body (101a) are assembled through the mounting plates (301c) and the mounting tubes (301b). All connections of the ultrafiltration membranes (301a) are made using stainless steel flanges.

9. The ultrafiltration membrane tank modification device according to claim 8, characterized in that: The auxiliary component (302) includes a first arc plate (302a) fixedly connected to the mounting tube (301b) and a second arc plate (302b) fixedly connected to the mounting plate (301c). The first arc plate (302a) and the second arc plate (302b) are staggered. A locking block (302c) is fixedly connected at the overlapping position of the first arc plate (302a) and the second arc plate (302b).

10. The ultrafiltration membrane tank modification device according to claim 9, characterized in that: The lifting component (303) includes a lifting cable (303a) fixedly connected to the locking block (302c), a rotating shaft (303b) fixedly connected to the lifting cable (303a), a bracket (303c) rotatably connected to the rotating shaft (303b), the bracket (303c) being fixedly connected to both sides of the pool body (101a), the bracket (303c) having a certain height, and a rotating handle (303d) rotatably connected to the bracket (303c), the rotating handle (303d) being fixedly connected to the rotating shaft (303b).

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