CN215365012U - Self-cleaning ultrafiltration water purification system with gas washing - Google Patents
Self-cleaning ultrafiltration water purification system with gas washing Download PDFInfo
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- CN215365012U CN215365012U CN202121024613.0U CN202121024613U CN215365012U CN 215365012 U CN215365012 U CN 215365012U CN 202121024613 U CN202121024613 U CN 202121024613U CN 215365012 U CN215365012 U CN 215365012U
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Abstract
The utility model relates to the technical field of water treatment, in particular to a self-cleaning ultrafiltration water purification system with gas washing, which comprises a water inlet unit, an ultrafiltration unit, a siphon unit and a gas washing unit, wherein the ultrafiltration unit comprises a water inlet chamber, an ultrafiltration membrane component, a water production chamber, a water production pipe and a water production groove; the water inlet unit comprises a water inlet groove, a water inlet pipe and a water inlet central pipe, the water inlet central pipe is vertically arranged in the center of the water inlet chamber, a hole is formed in the pipe wall of the water inlet central pipe, and the upper end of the water inlet central pipe is closed; the air washing unit comprises an aeration disc, an air washing pipe, a water isolating valve and a one-way exhaust valve; the siphon unit comprises a siphon pipe, a siphon auxiliary pipe and a water seal well. The utility model can realize the forward washing without additionally adding a water storage tank by arranging the water inlet central pipe and matching with the siphon structure, and the system can generate the air washing when the siphon occurs by combining the air washing pipe, the aeration disc, the water isolating valve and the one-way exhaust valve, has the functions of forward washing, air washing and backwashing, can empty the concentrated water at the water inlet side, and is particularly suitable for rural areas with incomplete power facilities and network conditions.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a self-cleaning ultrafiltration water purification system with gas washing.
Background
According to the World Health Organization (WHO), 80% of the diseases worldwide are associated with direct drinking of unclean drinking water. Therefore, the popularization of drinking water safety in rural areas becomes the central importance of urban and rural construction. However, some remote rural areas have the problem of shortage of supporting facilities such as traffic, electricity and networks, which causes difficulty in operation and maintenance of remote automatic water purification equipment, so that a set of safe, efficient and stably operated ultrafiltration valveless filtration equipment becomes a preferred device for optimizing the safety of drinking water in the current remote areas. The most main problem faced by the failure of normal and stable operation of valveless ultrafiltration is the problem of accumulation of pollutants on the inner membrane surface of a module, and the traditional self-cleaning process and flow are difficult to effectively strip the pollutants from the membrane surface, so that the problems of shortened operation period, reduced water yield, frequent self-cleaning period and the like are caused, thereby limiting the application and popularization of the self-cleaning valveless ultrafiltration.
At present, the valveless ultrafiltration equipment is explored domestically, and the patent CN 210993795 provides an ultrafiltration membrane self-cleaning device, which realizes the automatic backwashing of the device through a siphon inner sleeve, reduces the use of valves and pumps, and reduces the energy consumption. The patent CN 107158950A increases the treatment capacity by changing the membrane component structure, and realizes the automation of the whole process of ultrafiltration and back washing. However, the membrane thread cleaning mode at present mainly stays in the back washing and partial forward washing processes, the whole cleaning mode is weak, and meanwhile, an effective mode for emptying water in the membrane shell is not available.
Therefore, the self-cleaning valveless ultrafiltration process equipment which can safely, efficiently and stably operate under the condition of incomplete basic supporting facilities and has the functions of forward cleaning, gas cleaning, backwashing and concentrated water drainage in the membrane module and can automatically and periodically operate is provided, and the pressure is very urgent.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a self-cleaning ultrafiltration water purification system which has positive washing and air washing and can empty the concentrated water at the water inlet side of a membrane component.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a self-cleaning ultrafiltration water purification system who attaches gas washing, includes water inlet unit, ultrafiltration unit, siphon unit, its characterized in that: also comprises a gas washing unit;
the ultrafiltration unit comprises a shell, a water inlet chamber and a water production chamber which are separated from bottom to top are arranged in the shell, an ultrafiltration membrane component is positioned in the water inlet chamber, the ultrafiltration unit also comprises a water production pipe and a water production tank, the water production tank is positioned above the shell, two ends of the water production pipe are connected with the water production chamber and the water production tank, and the upper part of the water production tank is provided with an overflow port;
the water inlet unit comprises a water inlet groove, a water inlet pipe and a water inlet central pipe, the water inlet central pipe is vertically arranged in the center of the water inlet chamber, a central pipe water outlet hole is formed in the pipe wall of the water inlet central pipe, a first end of the water inlet pipe is connected to the water inlet groove, two ends of the water inlet pipe are connected to the lower end of the water inlet central pipe, and the upper end of the water inlet central pipe is closed;
the air washing unit comprises an aeration disc, an air washing pipe, a water isolating valve and a one-way exhaust valve, wherein a central through hole is formed in the center of the aeration disc, the aeration disc is installed at the bottom of the water inlet chamber, a water inlet pipe or a water inlet central pipe penetrates through the central through hole to be connected with each other, the side edge of the aeration disc is connected with the air washing pipe in a sealing mode, a plurality of aeration holes are formed in the aeration disc, the side face of the upper end of the water inlet chamber is provided with a hole and connected with the lower end of the vertically installed water isolating valve, and the upper end of the water isolating valve is connected with the one-way exhaust valve;
the siphon unit includes the siphon, the siphon auxiliary tube, the water seal well, the siphon is including the siphon tedge that connects gradually, the siphon connecting pipe, the siphon downtake, siphon downtake top is higher than siphon tedge top, siphon tedge one end is connected with the intake chamber lower extreme, siphon downtake one end is connected to the water seal well, the siphon auxiliary tube includes vertical section and rampart section, the first end of siphon auxiliary tube rampart is connected in the siphon connecting pipe lower part, the second end is connected to the vertical section of siphon auxiliary tube, siphon auxiliary tube rampart first end position is higher than siphon auxiliary tube rampart second end, the vertical section top of siphon auxiliary tube is connected to the downtake top, the vertical section bottom of siphon auxiliary tube is connected to the water seal well.
The water inlet unit is additionally provided with the water inlet central pipe, so that inlet water enters the water inlet chamber through the water inlet central pipe and is accumulated in the water inlet chamber, the siphon and the air washing pipe, the flow mode of water stored in the water inlet tank is water inlet tank-water inlet pipe-water inlet central pipe-water inlet chamber-siphon pipe-outward discharge when siphon occurs, the technical problem that forward washing is lacked in the self-cleaning valveless ultrafiltration process can be solved without additionally adding the water storage tank, the continuous disturbance of water flow to membrane wires in the water inlet and siphon processes is enhanced, the exchange effect of water flow in the system is promoted, and the membrane component cleaning effect is enhanced.
The system can generate air washing effect when siphon process occurs by combining the air washing pipe-aeration disc structure with the water separation valve-one-way exhaust valve on the upper side of the water inlet chamber. The method specifically comprises the following steps: when water enters, the one-way exhaust valve exhausts the water so that the water inlet chamber can be smoothly and effectively filled with the water, and meanwhile, the water inlet chamber is sealed through the water isolating valve after the water inlet chamber is fully filled with the water, so that the water can meet the pressure bearing condition and smoothly produce water. In the siphon stage, gas can not enter through the upper side of the water inlet chamber under the action of the one-way exhaust valve and can only enter through the gas washing pipe-aeration disc structure, so that gas washing occurs, the disturbance of air flow to membrane filaments is added, the cleaning force in the period is further enhanced, the operation time is prolonged, and the service life of the membrane is prolonged.
Preferably, the water inlet chamber, the ultrafiltration membrane module, the water production chamber, the water production pipe and the water production tank of the ultrafiltration unit also form a backwashing unit, and water in the backwashing unit flows from the water production tank, the water production pipe, the water production chamber, the ultrafiltration membrane module and the water inlet chamber in sequence. The device has a backwashing function, and backwashing water of the backwashing unit is discharged outside through the siphon unit.
Preferably, the water inlet tank is used for overflowing and feeding water, the water inlet mode is gravity-flow after passing through the overflow tank, and the upper end of the water inlet pipe is 0.1-0.5 m higher than the highest point of the siphon. The higher height of the water inlet pipe can avoid the overflow of water flow at the water inlet side before siphoning occurs.
Preferably, the mounting position of the aeration disc is higher than the connecting position of the siphon and the water inlet chamber by about 0.1-0.2 m, and the distance between the upper end face of the aeration disc and the lowest end of the membrane wire of the ultrafiltration membrane component is about 0.1-0.3 m. The structure helps to improve the air intake rate during the air wash and to provide sufficient diffusion at the low end to enhance the cleaning effect during the air wash stage.
Preferably, the upper end of the air washing pipe is of an open structure, the height of the upper end of the air washing pipe is 0.1-0.5 m higher than the water surface of the water inlet tank and higher than the top end of the siphon, and the lower end of the air washing pipe penetrates through the shell and is connected with one side of the aeration disc in a sealing mode. The structure helps to improve the suction strength of air in the air washing stage and increase the air inlet rate, thereby enhancing the extreme cleaning effect of air washing.
Preferably, the water produced by the water production tank is discharged in an overflow mode, and an overflow port is 3-5 m higher than the top end of the ultrafiltration membrane component. The structure is helpful for improving the backwashing pressure in the backwashing process, thereby enhancing the cleaning effect in the backwashing stage.
Preferably, the water seal well liquid level is 3.5m below the ground, and the tail end of the siphon is 0.3m below the water seal well liquid level. The lower liquid level of the water seal well is beneficial to increasing the suction force in the siphoning process, thereby enhancing the membrane cleaning effect, shortening the emptying time and prolonging the effective water production time of the equipment. The end of the siphon is positioned below the liquid level of the water-sealed well so as to ensure that siphon normally occurs.
According to the self-cleaning ultrafiltration water purification system with air washing, the water inlet central pipe is arranged and matched with the siphon structure, the forward washing can be realized without additionally adding a water storage tank, and the air washing pipe-aeration disc structure is combined with the water separation valve and the one-way exhaust valve on the upper side of the water inlet chamber, so that the system can generate the air washing effect when the siphon process occurs, has the functions of forward washing, air washing and backwashing, can empty the concentrated water on the water inlet side of the membrane module, and is particularly suitable for rural areas with incomplete power facilities and network conditions.
Drawings
FIG. 1 is a schematic structural diagram of a self-cleaning ultrafiltration water purification system with gas washing according to an embodiment of the present invention.
Fig. 2 is a schematic top view of the aeration plate of fig. 1.
In the figure: 1. a water inlet groove; 2. a water inlet pipe; 3. a siphon tube; 4. a central pipe water outlet; 5. a water inlet chamber; 6. an ultrafiltration membrane module; 7. a water producing chamber; 8. a water production pipe; 9. a water inlet central pipe; 10. a water producing tank; 11. a siphon auxiliary pipe; 12. a water isolating valve; 13. a one-way exhaust valve; 14. water sealing the well; 15. an aeration disc; 16. a gas washing pipe; 17. a housing; 18. an overflow port; 19. a central through hole; 20. an aeration hole; 21. a siphon riser; 22. a siphon connecting pipe; 23. a siphon downcomer.
Detailed Description
The present invention will be further described with reference to fig. 1-2 and the following detailed description.
A self-cleaning ultrafiltration water purification system with gas washing is shown in figure 1, and comprises a water inlet unit, an ultrafiltration unit, a siphon unit and a gas washing unit;
the ultrafiltration unit comprises a shell 17, a water inlet chamber 5 and a water production chamber 7 which are separated from bottom to top are arranged in the shell 17, an ultrafiltration membrane component 6 is positioned in the water inlet chamber 5, the ultrafiltration unit also comprises a water production pipe 8 and a water production tank 10, the water production tank 10 is positioned above the shell 17, two ends of the water production pipe 8 are connected with the water production chamber 7 and the water production tank 10, and the upper part of the water production tank 10 is provided with an overflow port 18;
the water inlet unit comprises a water inlet groove 1, a water inlet pipe 2 and a water inlet central pipe 9, wherein the water inlet central pipe 9 is vertically arranged in the center of a water inlet chamber 5, a central pipe water outlet hole 4 is formed in the pipe wall of the water inlet central pipe, a first end of the water inlet pipe 2 is connected to the water inlet groove 1, a second end of the water inlet pipe 2 is connected to the lower end of the water inlet central pipe 9, and the upper end of the water inlet central pipe 9 is closed;
the air washing unit comprises an aeration disc 15, an air washing pipe 16, a water stop valve 12 and a one-way exhaust valve 13, as shown in figure 2, a central through hole 19 is formed in the center of the aeration disc 15, the aeration disc 15 is installed at the bottom of the water inlet chamber 5, the water inlet pipe 2 penetrates through the central through hole 19 to be connected with a water inlet central pipe 9, the side edge of the aeration disc 15 is connected with the air washing pipe 16 in a sealing mode, a plurality of aeration holes 20 are formed in the aeration disc 15, a hole is formed in the side face of the upper end of the water inlet chamber 5 and connected with the lower end of the vertically installed water stop valve 12, and the upper end of the water stop valve is connected with the one-way exhaust valve 13;
as shown in fig. 1, the siphon unit includes a siphon tube 3, a siphon auxiliary tube 11, and a water sealed well 14, the siphon tube 3 includes a siphon ascending tube 21, a siphon connecting tube 22, and a siphon descending tube 23 that are connected in sequence, the top end of the siphon descending tube 23 is higher than the top end of the siphon ascending tube 21, one end of the siphon ascending tube 21 is connected with the lower end of the water inlet chamber 5, one end of the siphon descending tube 23 is connected to the water sealed well 14, the siphon auxiliary tube 11 includes a vertical section and a diagonal section, the first end of the diagonal section of the siphon auxiliary tube 11 is connected to the middle lower part of the siphon connecting tube 22, the second end is connected to the vertical section of the siphon auxiliary tube 11, the first end of the diagonal section of the siphon auxiliary tube 11 is higher than the second end of the diagonal section of the siphon auxiliary tube 11, the top end of the vertical section of the siphon auxiliary tube 11 is connected to the top end of the descending tube 23, and the bottom end of the vertical section of the siphon auxiliary tube 11 is connected to the water sealed well 14.
The water inlet chamber 5, the ultrafiltration membrane component 6, the water production chamber 7, the water production pipe 8 and the water production tank 10 of the ultrafiltration unit also form a backwashing unit, and the water of the backwashing unit flows from the water production tank 10, the water production pipe 8, the water production chamber 7, the ultrafiltration membrane component 6 and the water inlet chamber 5 in sequence.
The water inlet tank 1 is used for overflowing and feeding water, the water inlet mode is gravity flowing after passing through the overflow tank, and the upper end of the water inlet pipe 2 is 0.1 m higher than the highest point of the siphon pipe 3.
The mounting position of the aeration disc 15 is higher than the connecting position of the siphon pipe 3 and the water inlet chamber 5 by about 0.2m, the distance between the upper end surface of the aeration disc 15 and the lowest end of the membrane wire of the ultrafiltration membrane component 6 is about 0.2m, and the outer diameter of the aeration disc 15 is the same as the diameter of the outer wall of the ultrafiltration membrane component 6.
The upper end of the air washing pipe 16 is of an open structure, the height of the upper end is 0.5m higher than the water surface of the water inlet tank 1 and the top end of the siphon 3, and the lower end of the air washing pipe 16 penetrates through the shell 17 to be connected with one side of the aeration disc 15 in a sealing mode.
The water produced by the water production tank 10 is discharged in an overflow mode, and an overflow port 18 is higher than the top end 4m of the ultrafiltration membrane component 6.
The liquid level of the water seal well 14 is 3.5m below the ground, and the tail end of the siphon 3 is 0.3m below the liquid level of the water seal well 14.
The water production process comprises the following steps: raw water enters the water inlet pipe 2 through the water inlet groove 1, falls under the action of gravity and then enters the water inlet chamber 5 and the siphon pipe 3 through the water inlet central pipe 9, water enters the ultrafiltration membrane assembly 6 and the siphon pipe 3 gradually along with the increase of water inflow, the liquid level of the water inlet chamber 5 rises at the moment, liquid pushes gas in the water inlet chamber 5 to be discharged outside through the water isolating valve 12 and the one-way exhaust valve 13, and meanwhile, the water enters the gas washing pipe 16 through the aeration disc 15 and synchronously climbs in the gas washing pipe. When the liquid height in the water inlet chamber reaches the position of the water isolating valve 12, the water isolating valve 12 is closed under the action of the liquid, and the water inlet chamber 5 is closed to bear pressure. At the moment, the inlet water continuously accumulates and climbs in the gas washing pipe 16 and the siphon 3, and when the water pressure caused by the climbing height reaches the water production pressure of the membrane filaments, the water enters the water production side through the membrane filaments of the ultrafiltration membrane assembly 6 and enters the water production tank 10 through the water production pipe 8, and overflows and is discharged outside.
And (3) cleaning: along with the generation of membrane pollution, transmembrane pressure difference is increased, membrane filaments can maintain water production by higher pressure, so the liquid levels in the siphon pipe 3, the water inlet pipe 2 and the air washing pipe 16 can slowly rise, when the liquid level reaches an inclined branch section of the siphon auxiliary pipe 11, a part of concentrated water enters a vertical section of the siphon auxiliary pipe 11 along the inclined branch section of the siphon auxiliary pipe 11 and then flows downwards into the drainage water seal well 14, the siphon auxiliary pipe 11 continuously pumps air out of the siphon pipe 3 under the action of vacuum and water flow air entrainment formed in the pipe by descending water flow, so that the vacuum degree in the siphon pipe 3 is gradually increased, water in the water seal well 11 is sucked to a certain height at the lower end of the siphon pipe 23, when the concentrated water passes through the top end of the siphon descending pipe 23 and falls, the vacuum degree in the pipe is sharply increased, and when the falling water flow and the water flow at the tail end of the siphon descending pipe 23 are converged into one, forming continuous siphon to discharge the concentrated water in the water inlet chamber 5. At the moment, the water stored in the water inlet tank 1 flows to the water inlet chamber 5 through the water inlet pipe 2 and the water inlet central pipe 9 under the action of gravity and siphon, and is discharged outside through the siphon pipe 3 at the lower end of the water inlet chamber 5, and the membrane filaments are swept and cleaned by water flow in the process. When the water level in the water inlet pipe 2 drops to the liquid level of the water production tank 10, the water stored in the water production tank 10 flows from the water production tank 10, the water production pipe 8, the water production chamber 7, the ultrafiltration membrane component 6 and the water inlet chamber 5 under the action of gravity and siphon in sequence, membrane filaments are backwashed, and the backwash water is directly discharged outside through the siphon action after being mixed with concentrated water in the water inlet chamber 5. When the liquid level drops to the bottommost end of the water producing chamber 5 in the system, because of the reason that the one-way exhaust valve 13 does not reversely admit air, the water inlet chamber 5 can suck negative pressure generated by the balanced siphon action through the water inlet pipe 2 and the air washing pipe 16, so that the liquid level in the air washing pipe 16 drops rapidly, when the liquid level in the air washing pipe 16 drops to the height of the aeration disc 15, gas enters the water inlet chamber 5 through the aeration disc 15, the siphon negative pressure is balanced, and siphon continues to be performed. At the moment, the gas carries out disturbance aeration on the membrane wires, gas washing is generated, and pollutants are stripped. Meanwhile, the liquid level in the water inlet chamber 5 is continuously reduced and discharged due to the balance of air pressure. When the liquid level in the ultrafiltration membrane assembly 6 is reduced to the lowest end of the water inlet chamber 5, external air enters the siphon pipe 3, the siphon pipe is broken, and the next water production stage is started.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the utility model, and all equivalent changes and modifications made in the content of the claims should be considered as the technical scope of the utility model.
Claims (7)
1. The utility model provides a self-cleaning ultrafiltration water purification system who attaches gas washing, includes water inlet unit, ultrafiltration unit, siphon unit, its characterized in that: also comprises a gas washing unit;
the ultrafiltration unit comprises a shell (17), a water inlet chamber (5) and a water production chamber (7) which are separated from bottom to top are arranged in the shell (17), an ultrafiltration membrane component (6) is positioned in the water inlet chamber (5), the ultrafiltration unit also comprises a water production pipe (8) and a water production tank (10), the water production tank (10) is positioned above the shell (17), two ends of the water production pipe (8) are connected with the water production chamber (7) and the water production tank (10), and an overflow port (18) is arranged at the upper part of the water production tank (10);
the water inlet unit comprises a water inlet groove (1), a water inlet pipe (2) and a water inlet central pipe (9), the water inlet central pipe (9) is vertically arranged in the center of the water inlet chamber (5), the pipe wall of the water inlet central pipe is provided with a plurality of central pipe water outlet holes (4), the first end of the water inlet pipe (2) is connected to the water inlet groove (1), the second end of the water inlet pipe (2) is connected to the lower end of the water inlet central pipe (9), and the upper end of the water inlet central pipe (9) is closed;
the air washing unit comprises an aeration disc (15), an air washing pipe (16), a water stop valve (12) and a one-way exhaust valve (13), wherein a central through hole (19) is formed in the center of the aeration disc (15), the aeration disc (15) is installed at the bottom of the water inlet chamber (5), a water inlet pipe (2) or a water inlet central pipe (9) penetrates through the central through hole (19) to be connected with each other, the side edge of the aeration disc (15) is connected with the air washing pipe (16) in a sealing mode, a plurality of aeration holes (20) are formed in the aeration disc (15), a hole is formed in the side face of the upper end of the water inlet chamber (5) and is connected with the lower end of the vertically installed water stop valve (12), and the upper end of the water stop valve is connected with the one-way exhaust valve (13);
the siphon unit comprises a siphon (3), a siphon auxiliary pipe (11) and a water seal well (14), the siphon (3) comprises a siphon ascending pipe (21), a siphon connecting pipe (22) and a siphon descending pipe (23) which are sequentially connected, the top end of the siphon descending pipe (23) is higher than the top end of the siphon ascending pipe (21), one end of the siphon ascending pipe (21) is connected with the lower end of a water inlet chamber (5), one end of the siphon descending pipe (23) is connected to the water seal well (14), the siphon auxiliary pipe (11) comprises a vertical section and an inclined branch section, the first end of the inclined branch section of the siphon auxiliary pipe (11) is connected to the middle lower part of the siphon connecting pipe (22), the second end of the inclined branch section of the siphon auxiliary pipe (11) is connected to the vertical section of the siphon auxiliary pipe (11), the top end of the vertical section of the siphon auxiliary pipe (11) is connected to the top end of the siphon descending pipe (23), the bottom end of the vertical section of the siphon auxiliary pipe (11) is connected to a water seal well (14).
2. The self-cleaning ultrafiltration water purification system with gas washing according to claim 1, characterized in that: the water inlet chamber (5), the ultrafiltration membrane component (6), the water production chamber (7), the water production pipe (8) and the water production tank (10) of the ultrafiltration unit also form a backwashing unit, and water of the backwashing unit flows from the water production tank (10), the water production pipe (8), the water production chamber (7), the ultrafiltration membrane component (6) and the water inlet chamber (5) in sequence.
3. The self-cleaning ultrafiltration water purification system with gas washing according to claim 1, characterized in that: the water inlet tank (1) is used for overflowing and feeding water, the water inlet mode is gravity-flow after passing through the overflow tank, and the upper end of the water inlet pipe (2) is 0.1-0.5 m higher than the highest point of the siphon (3).
4. The self-cleaning ultrafiltration water purification system with gas washing according to claim 1, characterized in that: the mounting position of the aeration disc (15) is higher than the connecting position of the siphon (3) and the water inlet chamber (5) by 0.1-0.2 m, and the distance between the upper end surface of the aeration disc (15) and the lowest end of the membrane wire of the ultrafiltration membrane component (6) is 0.1-0.3 m.
5. The self-cleaning ultrafiltration water purification system with gas washing according to claim 1, characterized in that: the upper end of the air washing pipe (16) is of an open structure, the height of the air washing pipe is 0.1-0.5 m higher than the water surface of the water inlet tank (1) and higher than the top end of the siphon (3), and the lower end of the air washing pipe (16) penetrates through the shell (17) to be connected with one side of the aeration disc (15) in a sealing mode.
6. The self-cleaning ultrafiltration water purification system with gas washing according to claim 1, characterized in that: the produced water in the water producing tank (10) is discharged in an overflow mode, and an overflow port (18) is 3-5 m higher than the top end of the ultrafiltration membrane component (6).
7. The self-cleaning ultrafiltration water purification system with gas washing according to claim 1, characterized in that: the liquid level of the water seal well (14) is 3.5m below the ground, and the tail end of the siphon (3) is 0.3m below the liquid level of the water seal well (14).
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| CN202121024613.0U CN215365012U (en) | 2021-05-13 | 2021-05-13 | Self-cleaning ultrafiltration water purification system with gas washing |
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| CN202121024613.0U CN215365012U (en) | 2021-05-13 | 2021-05-13 | Self-cleaning ultrafiltration water purification system with gas washing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149139A (en) * | 2021-05-13 | 2021-07-23 | 浙江开创环保科技股份有限公司 | Self-cleaning ultrafiltration water purification system with gas washing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149139A (en) * | 2021-05-13 | 2021-07-23 | 浙江开创环保科技股份有限公司 | Self-cleaning ultrafiltration water purification system with gas washing |
| CN113149139B (en) * | 2021-05-13 | 2024-08-06 | 浙江开创环保科技股份有限公司 | Self-cleaning ultrafiltration water purification system with air washing function |
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