Tank-type ultrafiltration device

Abstract

The utility model discloses a tank-type ultrafiltration device, relates to the technical field of water treatment, and solves the problems that an existing ultrafiltration assembly is inconvenient to distribute water and troublesome to mount and dismount. The device comprises a tank body, a water outlet and a water inlet are formed in the upper end and the lower end of the tank body respectively, an upper partition plate is arranged in the tank body and divides a cavity in the tank body into a water producing cavity and a filtering cavity, and a plurality of inserting holes are formed in the upper partition plate; the ultrafiltration assemblies are in one-to-one correspondence with the insertion holes, the ultrafiltration assemblies can be inserted into the filtering cavity through the insertion holes, the water production ends of the tops of the ultrafiltration assemblies are communicated with the water production cavity, the ultrafiltration assemblies are provided with inlet holes so that water in the filtering cavity can enter the ultrafiltration assemblies, and sealing structures are arranged between the ultrafiltration assemblies and the upper partition plate. The ultrafiltration assembly in the tank-type ultrafiltration device is convenient to mount and dismount, the replacement cost is saved, the connection of the whole external pipeline is simpler, and the gas leakage detection efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment technical field, especially a kind of tank type ultrafiltration device. BACKGROUND

[0002] On the traditional column type ultrafiltration device, water inlet, water production outlet and concentrated water outlet are generally provided on each ultrafiltration component body, and air washing interface is generally connected to water inlet branch pipe. Since there are many pipes, external pipeline connection is relatively complex, and water distribution inside single ultrafiltration component also needs to be considered. When internal problems such as broken wire occur in ultrafiltration component, it is necessary to disassemble ultrafiltration component one by one from pry block for air test and leakage stoppage, which is relatively troublesome to disassemble and assemble. SUMMARY

[0003] The utility model discloses a kind of tank type ultrafiltration devices to solve the above problems, solve the problem that the existing ultrafiltration component is inconvenient to distribute water, and it is relatively troublesome to install and disassemble.

[0004] The technical scheme of the utility model for achieving the above-mentioned purpose is a kind of tank type ultrafiltration device, comprising:

[0005] Tank body, the upper and lower ends of the tank body are provided with water outlet and water inlet respectively, an upper baffle is arranged in the tank body, the upper baffle separates the cavity in the tank body into water production cavity and filter cavity, and the upper baffle is provided with a plurality of insertion holes;

[0006] A plurality of ultrafiltration components, the ultrafiltration components correspond to the insertion holes one by one, the ultrafiltration components can be inserted into the filter cavity through the insertion holes, the water production end at the top of the ultrafiltration components is communicated with the water production cavity, the ultrafiltration components are provided with inlet holes so that water in the filter cavity enters the ultrafiltration components, and sealing structures are arranged between the ultrafiltration components and the upper baffle.

[0007] Preferably, the tank body comprises a body and an upper cover, the upper cover is installed at the upper end of the body and connected with the body through a flange.

[0008] Preferably, the ultrafiltration component comprises a shell and a plurality of membrane filaments, the plurality of membrane filaments are glued in the shell, one end of the membrane filament close to the upper baffle is open, and the other end of the membrane filament away from the upper baffle is closed, the open end of the membrane filament is communicated with the water production cavity, and the surrounding wall of the shell is provided with a plurality of inlet holes for facilitating water to be treated to enter the shell.

[0009] Preferably, the upper baffle is provided with a plurality of sleeves, the sleeves correspond to the insertion holes one by one, the sleeves are located at the periphery of the insertion holes, and the upper end of the shell is clamped with the sleeves.

[0010] Preferably, the top of the shell is provided with a sealing ring, the sealing ring is provided with at least one protrusion, the sleeve ring or the upper partition plate is provided with a pressure buckle matched with the protrusion, and the pressure buckle can press the protrusion downward to limit and fix the ultrafiltration assembly.

[0011] Preferably, the bottom of the upper partition plate is provided with a plurality of sleeves corresponding to the insertion holes and fixed on the bottom of the upper partition plate, and the shell can pass through the sleeves.

[0012] Preferably, at least one sealing ring is arranged between the shell and the sleeve.

[0013] Preferably, the tank body is further provided with a lower partition plate, a water inlet cavity is formed below the lower partition plate in the main body, and the lower partition plate is provided with a plurality of through holes for connecting the water inlet cavity and the filtration cavity.

[0014] Preferably, the upper surface of the lower partition plate is provided with a plurality of sleeves corresponding to the ultrafiltration assemblies, and the lower ends of the ultrafiltration assemblies are inserted into the sleeves.

[0015] Preferably, the lower partition plate is provided with a plurality of positioning pipes corresponding to the sleeves, and the positioning pipes are arranged on the sleeves.

[0016] Compared with the prior art, the beneficial effects are that:

[0017] In the utility model, the water to be treated is introduced into the filtration cavity through the water inlet at the bottom of the tank body, enters the plurality of ultrafiltration assemblies through the insertion holes, and after being filtered by the plurality of ultrafiltration assemblies, the filtered water enters the water production cavity from the water production end at the top of the ultrafiltration assembly, and is finally discharged from the water outlet at the top of the tank body. All the ultrafiltration assemblies share one filtration cavity and one water production cavity, realize centralized water distribution and centralized water production, and reduce the external connection points of the pipelines.

[0018] Compared with the traditional column type ultrafiltration assembly, a plurality of ultrafiltration assemblies can be arranged in one device, the upper end cover and the corresponding pipeline connection are not needed on each ultrafiltration assembly, all the ultrafiltration assemblies share one water inlet and one water outlet, the external pipeline connection points are greatly reduced, the whole external pipeline connection is simpler, and the leakage detection efficiency is also higher. The ultrafiltration assembly is inserted into the filtration cavity through the insertion hole in the upper partition plate, is convenient to install and disassemble, saves the replacement cost, is convenient to maintain in the later period, and has low maintenance cost; according to the actual needs of the project, the tank body can also adapt to more diverse water quality environments after being treated by rubber lining.

[0019] Meanwhile, the tank type ultrafiltration device omits the upper end cover and the shell of the original column type ultrafiltration assembly, has good environmental benefits, and effectively reduces the generation amount of solid waste during replacement, reduces the manufacturing cost of the ultrafiltration assembly and the cost of later equipment processing, and is convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a shaft side structural schematic view of the tank type ultrafiltration device in the utility model;

[0021] Figure 2 is a sectional view structural schematic view of the tank type ultrafiltration device in the utility model;

[0022] Figure 3 is Figure 2 is a structure enlarged view of A in the utility model;

[0023] Figure 4 is Figure 2 is a structure enlarged view of B in the utility model;

[0024] Figure 5 is a shaft side structural schematic view of the ultrafiltration assembly in the tank type ultrafiltration device;

[0025] Figure 6 is a sectional view structural schematic view of the ultrafiltration assembly in the tank type ultrafiltration device.

[0026] In the drawing, 1, tank body; 11, main body; 111, water inlet pipe; 112, drain pipe; 12, upper cover; 121, water outlet pipe; 101, water production cavity; 102, filtration cavity; 103, water inlet cavity; 2, ultrafiltration assembly; 21, shell; 22, membrane wire; 23, sealing ring; 231, protrusion; 24, lifting piece; 201, inlet hole; 3, upper partition plate; 301, insertion hole; 4, lower partition plate; 401, through hole; 5, sleeve; 6, positioning pipe; 7, sleeve pipe; 8, sealing ring; 9, sleeve ring; 91, pressing buckle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] As Figure 1 and Figure 2 shown, a preferred embodiment of the utility model puts forward a kind of tank type ultrafiltration device, which mainly includes tank body 1 and multiple ultrafiltration assemblies 2, wherein tank body 1 is by three parts, i.e. main body 11 and upper cover 12, main body 11 is the cylinder structure of upper end through, upper cover 12 adopts quick release flange structure and is installed at the upper end of main body 11, finally forms a sealed tank body 1.

[0029] In other technical solutions, the lower end of the body 11 can also be designed as open, and a lower cover is installed at the lower end of the body 11. The lower cover can be installed at the lower end of the body in a quick-release flange structure, so as to clean the inside of the tank body.

[0030] The upper cover 12 is provided with a water outlet, and a water outlet pipe 121 is connected at the water outlet. The water outlet pipe 121 is laid horizontally to allow lateral water outlet. The body 11 is provided with a water inlet and a drain outlet. A water inlet pipe 111 is connected at the water inlet, and the water inlet pipe 111 is also laid horizontally to allow lateral water inlet. The drain outlet is located at the middle part of the bottom of the body 11, and a drain pipe 112 is connected at the drain outlet to discharge sewage.

[0031] The bottom surface of the body 11 is an arc surface that is gradually recessed towards the middle, so that the contents in the tank body 1 after treatment can be concentrated and discharged from the middle drain outlet.

[0032] Reference Figures 2-4 The upper and lower ends of the body 11 are respectively provided with an upper partition plate 3 and a lower partition plate 4. The upper partition plate 3 and the lower partition plate 4 sequentially divide the cavity of the tank body 1 from top to bottom into a water production cavity 101, a filter cavity 102 and a water inlet cavity 103. The water inlet pipe 111 and the drain pipe 112 are both in communication with the water inlet cavity 103, and the water outlet is in communication with the water production cavity 101. The lower partition plate 4 is a perforated plate with a plurality of through holes 401. The water to be treated in the water inlet cavity 103 can enter the filter cavity 102 from bottom to top through the through holes 401, and the lower partition plate 4 plays a role in uniform water distribution.

[0033] In other technical solutions, the water production cavity 101, the filter cavity 102 and the water inlet cavity 103 can also be arranged from bottom to top, or the water inlet cavity 103 can be arranged outside the filter cavity 102, or the water inlet cavity 103 and the water production cavity 101 can be arranged on the same side of the filter cavity 102, etc., without specific limitation.

[0034] The ultrafiltration assembly 2 is installed in the filter cavity 102. The water to be treated can enter the ultrafiltration assembly 2, then be filtered and enter the water production cavity 101 from bottom to top, and finally be discharged from the water outlet as clean water.

[0035] A plurality of insertion holes 301 are formed on the upper partition plate 3, and the number of the insertion holes 301 is consistent with the number of the ultrafiltration assemblies 2, and the two are one-to-one corresponding, so that the ultrafiltration assemblies 2 are inserted into the filtering cavity 102 through the insertion holes 301. Meanwhile, a plurality of positioning tubes 6 and a plurality of sleeves 5 are arranged on the lower partition plate 4, and the number of the positioning tubes 6 and the sleeves 5 is consistent with the number of the ultrafiltration assemblies 2, and the two are one-to-one corresponding. The positioning tubes 6 are welded on the lower partition plate 4, and the positioning tubes 6 are inserted into the sleeves 5. The upper end of the positioning tube 6 is inserted into the sleeve 5, and the bottom of the sleeve 5 is welded with the lower partition plate 4. A through hole 401 can be formed on the lower partition plate 4 at the position of each positioning tube 6, so that the water to be treated in the water inlet cavity 103 directly passes through the through hole 401, passes through the positioning tube 6, enters the sleeve 5, and then enters the ultrafiltration assembly 2.

[0036] In other technical solutions, the lower partition plate 4 can not be used, and the cavity in the tank 1 is divided into two cavities, i.e., the water production cavity 101 and the filtering cavity 102, by the upper partition plate 3, and the effect is the same.

[0037] As shown in Figure 4 , the upper end of the sleeve 5 is thick, and the lower end is thin. The lower end of the ultrafiltration assembly 2 is inserted into the sleeve 5, and the thicker end of the sleeve 5 can limit or position the ultrafiltration assembly 2, and the transition platform between the thinner end and the thicker end provides support for the ultrafiltration assembly 2.

[0038] As shown in Figure 5 and Figure 6 , the ultrafiltration assembly 2 is mainly composed of a shell 21, a sealing ring 23, and a plurality of membrane filaments 22 (see Figure 6 ). The membrane filament 22 is a hollow fiber structure and can filter the water to be treated. The shell 21 is a cylinder penetrating from top to bottom. The upper end of the shell 21 is a water production end, and the sealing ring 23 is welded on the upper end of the shell 21. The plurality of membrane filaments 22 are glued in the shell 21, and the upper end of the shell 21 is closed by glue. The upper end of the membrane filament 22 is glued and then cut, so that the inner hole of the membrane filament 22 is communicated with the water production cavity 101, serving as a water production side, and the lower end of the membrane filament 22 is a closed end and is not cut. The filtered water enters the water production cavity 101 through the water production end of the membrane filament 22.

[0039] The shell 21 has a plurality of inlet holes 201 on the surrounding wall, and the water to be treated in the filtering cavity 102 can enter the shell 21 through the inlet holes 201, and then the water is filtered through the membrane filament 22, enters the water production cavity 101, and is finally discharged from the water outlet pipe 121. The sleeve 5 also has a plurality of inlet holes 201 on the surrounding wall, and the water to be treated can enter the inside of the sleeve 5 through the inlet holes 201, and then enter the inside of the shell 21 from the bottom of the shell 21.

[0040] In other technical solutions, the sleeve 5 can have no inlet holes 201, and the bottom of the shell 21 can not be penetrated.

[0041] After the shell 21 is inserted into the filter cavity 102 through the insertion hole 301 on the upper partition plate 3, the lower end of the shell 21 is inserted with the sleeve 5 on the lower partition plate 4. The sleeve 5 is a variable-diameter pipe, which can position and support the shell 21. Since the diameter of the sealing ring 23 is larger than that of the insertion hole 301, the sealing ring 23 can support the ultrafiltration assembly 2.

[0042] As shown in Figure 2 , Figure 3 , a plurality of sleeves 9 are arranged on the upper surface of the upper partition plate 3. The sleeves 9 correspond to the insertion holes 301 one by one, and the insertion holes 301 are located in the middle of the sleeves 9. Each sleeve 9 has two symmetrically distributed pressing buckles 91, which are formed by upward protrusions 231 and bending.

[0043] Each sealing ring 23 on the top of the shell 21 has two protrusions 231, which correspond to the two pressing buckles 91 on the sleeve 9 one by one. After the ultrafiltration assembly 2 is inserted into the filter cavity 102 through the insertion hole 301 on the upper partition plate 3, the shell 21 is rotated, so that the two protrusions 231 on the sealing ring 23 can be rotated below the two pressing buckles 91 respectively. The pressing buckles 91 have a certain elasticity, which can press the protrusions 231 downward tightly, thereby pressing, limiting and fixing the shell 21 downward. This design facilitates the quick installation and disassembly of the ultrafiltration assembly 2.

[0044] In other technical solutions, the pressing buckles 91 can also not be arranged on the sleeves 9, but directly arranged around the insertion holes 301 on the upper partition plate 3, which have the same effect as the above and are used to cooperate with the protrusions 231 to press the ultrafiltration assembly 2 tightly.

[0045] As shown in Figure 3 , a plurality of sleeves 7 are welded on the bottom surface of the upper partition plate 3, and the sleeves 7 correspond to the insertion holes 301 one by one and are located at the bottom of the insertion holes 301. The shell 21 passes through the insertion hole 301 and the sleeve 7 to enter the filter cavity 102, and the sleeve 7 can guide the ultrafiltration assembly 2, so that the lower end of the ultrafiltration assembly 2 is accurately connected with the sleeve 5 below.

[0046] In order to ensure the sealing, a sealing ring 8 is arranged at each of the upper, middle and lower positions of the inner wall of the sleeve 7, and the sealing ring 8 is arranged on the shell 21 to prevent the water to be treated in the filter cavity 102 from entering the water production cavity 101 through the gap between the sleeve 7 and the shell 21. Meanwhile, a sealing gasket can also be arranged below the sealing ring 23 to strengthen the sealing. After the pressing buckle 91 presses the sealing ring 23 downward tightly, the bottom surface of the sealing ring 23 is tightly attached to the upper partition plate 3, which also helps to strengthen the sealing. Under the joint action of the sealing ring 8 and the upper partition plate 3 in the tank body 1, the water production side (i.e. the water production cavity 101) and the water inlet side (i.e. the filter cavity 102) are completely separated, thereby ensuring the water quality of the ultrafiltration tank.

[0047] Two pulling members 24 are also connected to the sealing ring 23, so that when the ultrafiltration assembly 2 is replaced, the pulling members 24 can be pulled upward to pull the ultrafiltration assembly 2 out of the filter cavity 102. The pulling members 24 can be ropes, or can be circular rings or other structures that are convenient to pull.

[0048] When the ultrafiltration assembly 2 needs to be replaced, the upper cover 12 is only opened, the ultrafiltration assembly 2 is rotated, the protrusion 231 on the sealing ring 23 is separated from the pressing buckle 91 on the sleeve 9, and then the ultrafiltration assembly 2 is pulled out of the filter cavity 102 through the pulling members 24. When the ultrafiltration assembly 2 is replaced, only the part of the ultrafiltration assembly 2 body 11 including the shell 21 and the membrane wire 22 needs to be taken out and replaced, and other parts do not need to be replaced, which is more convenient and has lower cost.

[0049] When working, water enters the water inlet at the bottom of the tank body 1, enters the water inlet cavity 103, is distributed through the lower partition plate 4 with the through hole 401 in the tank body 1, enters the filter cavity 102, and the water to be treated enters the ultrafiltration assembly 2 under the action of the pressure, is filtered through the membrane wire 22 of the external pressure type ultrafiltration assembly 2, and then is discharged from the water outlet at the upper end of the assembly. The filtered water enters the water production cavity 101, and then is discharged from the water outlet.

[0050] In the embodiment, the water inlet at the bottom of the tank body 1 also serves as a gas washing gas inlet, and the water outlet at the top of the tank body 1 also serves as a backwashing water inlet or a backwashing gas inlet.

[0051] The above technical solution only reflects the preferred technical solution of the technical solution of the present application, and some changes made by the person skilled in the art to some parts of the present application also reflect the principle of the present application and are within the protection scope of the present application.

Claims

1. A tank-type ultrafiltration device, characterized by comprising: The application relates to a water purifying device. The tank body (1) comprises a body (11) and an upper cover (12), the upper cover (12) is arranged at the upper end of the body (11) and is connected with the body (11) through a flange. The ultrafiltration assembly (2) comprises a shell (21) and a plurality of membrane filaments (22), the membrane filaments (22) are glued in the shell (21), one end of the membrane filaments (22) close to the upper partition plate (3) is open, and the other end of the membrane filaments (22) away from the upper partition plate (3) is closed; the open end of the membrane filaments (22) is communicated with the water production cavity (101); and the surrounding wall of the shell (21) is provided with a plurality of inlet holes (201) for facilitating water to enter the shell (21).

2. The tank ultrafiltration device according to claim 1, characterized in that, The upper partition plate (3) is provided with a plurality of sleeve rings (9), the sleeve rings (9) correspond to the insertion holes (301) one by one, the sleeve rings (9) are located at the periphery of the insertion holes (301), and the upper end of the shell (21) is clamped with the sleeve rings (9).

3. The tank ultrafiltration device according to claim 1, characterized in that, The top of the shell (21) is provided with a sealing ring (23), the sealing ring (23) is provided with at least one protrusion (231), the sleeve ring (9) or the upper partition plate (3) is provided with a pressing buckle (91) matched with the protrusion (231), and the pressing buckle (91) can press the protrusion (231) downward to limit and fix the ultrafiltration assembly (2).

4. The tank ultrafiltration device according to claim 3, characterized in that The bottom of the upper partition plate (3) is provided with a plurality of sleeve pipes (7), the sleeve pipes (7) correspond to the insertion holes (301) one by one and are fixed at the bottom of the upper partition plate (3), and the shell (21) can pass through the sleeve pipes (7).

5. The tank ultrafiltration device according to claim 4, characterized in that At least one sealing ring (8) is arranged between the shell (21) and the sleeve pipe (7).

6. The tank ultrafiltration device according to claim 5, characterized in that The tank body (1) is further provided with a lower partition plate (4), the water inlet cavity (103) is formed in the body (11) below the lower partition plate (4), and the lower partition plate (4) is provided with a plurality of through holes (401) for connecting the water inlet cavity (103) and the filter cavity (102).

7. The tank ultrafiltration device according to claim 6, characterized in that ​ 8. The tank ultrafiltration device according to claim 2, characterized in that, ​ 9. The tank ultrafiltration device according to claim 8, characterized in that ​ 10. The tank ultrafiltration device according to claim 9, characterized in that The lower partition plate (4) is provided with a plurality of positioning pipes (6), the positioning pipes (6) correspond to the sleeves (5) one by one, and the positioning pipes (6) are arranged on the sleeves (5).

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