Water treatment device based on ceramic flat sheet membrane

Abstract

The utility model discloses a water treatment device based on a ceramic flat sheet membrane. The water treatment device comprises a container body, and a first equipment chamber, a coagulating basin, a ceramic membrane tank and a clean water tank which are arranged in the container body, a water inlet mechanism is arranged in the first equipment chamber; the water inlet mechanism is connected with the coagulating basin and the ceramic membrane tank; the coagulation tank is connected with the ceramic membrane tank, and a ceramic flat sheet membrane assembly is arranged in the ceramic membrane tank and connected with the clean water tank; and the clean water tank is connected with the ceramic membrane tank through a backwashing mechanism. The water treatment device disclosed by the utility model adopts a container type structure, is convenient to transport and move, has strong environmental adaptability, and can adapt to water treatment under different water quality conditions.

Description

Technical Field

[0001] The utility model belongs to the technical field of ceramic membranes, and in particular relates to a water treatment device based on ceramic flat membranes. Background Art

[0002] In order to meet the increasingly stringent emission standards, deep water treatment in urban water treatment plants is imperative. Some places have even proposed quasi-Class IV water standards, and conventional secondary water treatment processes are difficult to meet the requirements. In addition, due to the influence of human activities, drinking water sources have been polluted to varying degrees. Water treated with conventional water purification processes is difficult to meet existing water quality standards, and there are safety risks to water quality.

[0003] Existing water treatment devices need to be assembled on site and tested to see if all joints are well connected after assembly. They cannot be put into use quickly and are not easy to move. Moreover, in some water quality conditions, coagulation reaction is not required. However, existing water treatment devices generally enter the coagulation tank for reaction first, and then enter the ceramic membrane tank for filtration. The water purification steps cannot be flexibly adjusted according to water quality conditions. Utility Model Content

[0004] In view of the above problems, the utility model provides a water treatment device based on ceramic flat membrane, which adopts a container structure, is easy to install, does not require on-site assembly, can be put into use immediately, is easy to move and transport, has strong adaptability to the environment, and can adapt to water treatment under different water quality conditions.

[0005] The utility model provides a water treatment device based on ceramic flat membrane, which is characterized by comprising: a container body and a first equipment room, a coagulation tank, a ceramic membrane tank, and a clear water tank arranged in the container body; a water inlet mechanism is arranged in the first equipment room, and the water inlet mechanism is connected to the coagulation tank and the ceramic membrane tank; the coagulation tank is connected to the ceramic membrane tank, a ceramic flat membrane assembly is arranged in the ceramic membrane tank, and the ceramic flat membrane assembly is connected to the clear water tank; the clear water tank is connected to the ceramic membrane tank through a backwash mechanism.

[0006] In some embodiments of the utility model, the water inlet mechanism includes a water inlet pump and a water inlet pipe, and the water inlet pipe is provided with a water inlet valve. Preferably, the water inlet pipe is provided with a first three-way pipe fitting, and the water inlet valve includes a three-way valve adapted to the first three-way pipe fitting, one opening of the first three-way pipe fitting is used for water inlet, and the other two openings are used for water outlet, one of the openings for water outlet is connected to the coagulation tank, and the other opening for water outlet is connected to the ceramic membrane tank, and the first three-way valve can control the opening and closing of the two water outlet openings, that is, control the water to flow to the coagulation tank or to the ceramic membrane tank.

[0007] In some embodiments of the utility model, the first equipment room is further provided with an ozone generator and a coagulation dosing barrel connected to the water inlet mechanism. Preferably, the ozone generator adopts an oxygen source integrated machine with a built-in oxygen generator, so that the ozone concentration is higher and the treatment effect is better. Ozone can catalytically oxidize and oxidize macromolecular organic matter, and can also reduce membrane pollution; the coagulation dosing barrel includes a PAC dosing barrel, which can remove suspended solids (SS), phosphorus, etc. in water through coagulation reaction.

[0008] In some embodiments of the utility model, the water inlet mechanism is provided with a venturi tube and a first pipeline mixer, the outlet of the venturi tube is connected to the inlet of the first pipeline mixer, the ozone generator is connected to the venturi tube, and the coagulation and dosing barrel is connected to the first pipeline mixer. The ozone generated by the ozone generator is introduced into the water inlet pipeline through the venturi tube to achieve gas-liquid mixing, and the coagulant in the coagulation and dosing barrel is introduced into the water inlet pipeline through the first pipeline mixer, so that the water and the coagulant can be fully mixed. At the same time, the first pipeline mixer is arranged downstream of the venturi tube, which can avoid gas blockage when the venturi tube is used for gas-liquid mixing.

[0009] In some embodiments of the present invention, a stirring mechanism is provided in the coagulation tank, through which the coagulant and water can fully react, and impurities can be efficiently adsorbed and settled.

[0010] In some embodiments of the utility model, the coagulation tank is provided with an overflow port, and the coagulation tank is connected to the ceramic membrane tank through the overflow port. After the water flowing into the coagulation tank from the water inlet mechanism undergoes a coagulation reaction, it can flow into the ceramic membrane tank through the overflow port.

[0011] In some embodiments of the utility model, the ceramic flat membrane assembly is connected to the clean water tank via a connecting mechanism, the connecting mechanism includes a water production pump and a connecting pipe, one end of the connecting pipe is connected to the ceramic flat membrane assembly, and the other end is connected to the clean water tank, and the connecting pipe is also connected to a water outlet pipe. Water filtered by the ceramic flat membrane assembly can flow into the clean water tank through the connecting mechanism, the clean water tank can store water, and the water in the clean water tank can be used for backwashing, etc., and the water outlet pipe can lead the treated water out of the water treatment device.

[0012] In some embodiments of the utility model, an ultraviolet disinfection lamp is also provided on the connecting pipe, and ultraviolet disinfection is performed without adding disinfectant.

[0013] In some embodiments of the utility model, the container body is further provided with a second equipment room, the ceramic membrane pool is located between the coagulation pool and the clean water pool, the ceramic membrane pool and the coagulation pool are both adjacent to the first equipment room, and the ceramic membrane pool and the clean water pool are both adjacent to the second equipment room. Through reasonable area division and layout, the connection between the various structures in the container and the utilization of the space in the container body are facilitated.

[0014] In some embodiments of the utility model, a membrane drug washing mechanism is provided in the second equipment room, and the membrane drug washing mechanism is connected to the backwash mechanism. Preferably, the backwash mechanism includes a backwash pump and a backwash pipe, one end of the backwash pipe is connected to the clean water tank, and the other end is connected to the ceramic flat membrane assembly; the membrane drug washing mechanism includes a membrane washing drug adding barrel and a drug adding pipe, one end of the drug adding pipe is connected to the drug adding barrel, and the other end is connected to the backwash pipe. During backwashing, the reagent in the membrane washing drug adding barrel is introduced into the water in the backwash pipe, and the backwashing effect is better and cleaner.

[0015] In some embodiments of the present invention, an aeration mechanism is provided in the second equipment room, and the aeration mechanism is connected to the ceramic flat membrane assembly. The aeration mechanism includes an aeration fan and a ventilation pipe.

[0016] In some implementation modes of the present invention, a control cabinet is provided in the second equipment room.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts a container-type structure, does not require on-site assembly, is easy to move and transport, and has strong adaptability to the environment; the water inlet mechanism is connected to the coagulation tank and the ceramic membrane tank. In actual use, according to the water quality conditions, the water can be first introduced into the coagulation tank for coagulation reaction and then flow into the ceramic membrane tank, or the water can be directly introduced into the ceramic membrane tank for filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a plan layout diagram of various areas in a container of a water treatment device in Example 1 of the utility model;

[0019] Figure 2 for Figure 1 The cross-section along the AA direction;

[0020] Figure 3 This is a schematic diagram of the connection relationship between various structures in a container body of a water treatment device in Example 1 of the utility model.

[0021] 1-First equipment room, 11-Water inlet mechanism, 110-Water inlet pipeline, 111-Water inlet pump, 112-Venturi tube, 113-First pipeline mixer, 114-First check valve, 115-First three-way valve, 12-Ozone generator, 13-Coagulation and dosing barrel, 2-Coagulation tank, 20-Overflow port, 3-Ceramic membrane tank, 31-Ceramic flat membrane assembly, 32-Sewage pipeline, 33-Sewage valve, 4-Clean water tank, 5-Second equipment room, 50-Control cabinet, 5 1-connecting mechanism, 510-connecting pipeline, 511-water production pump, 512-second check valve, 513-ultraviolet disinfection lamp, 514-second three-way valve, 515-water outlet pipeline, 52-backwashing mechanism, 520-backwashing pipeline, 521-backwashing pump, 522-third check valve, 523-second pipeline mixer, 53-membrane drug washing mechanism, 530-drug adding pipeline, 531-membrane washing and drug adding barrel, 532-check valve, 54-aeration mechanism, 9-container body. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1-3 As shown, this embodiment provides a water treatment device based on a ceramic flat membrane, including: a container body 9 and a first equipment room 1, a coagulation tank 2, a ceramic membrane tank 3, a clear water tank 4, and a second equipment room 5 arranged in the container body 9.

[0025] The ceramic membrane pool 3 is located between the coagulation pool 2 and the clean water pool 4. The ceramic membrane pool 3 and the coagulation pool 2 are both adjacent to the first equipment room 1, and the ceramic membrane pool 3 and the clean water pool 4 are both adjacent to the second equipment room 5. The specific connection method of each structure in the container body 9 is as follows: Figure 3 As shown, Figure 3 The arrow in the middle indicates the direction of fluid flow.

[0026] A water inlet mechanism 11 is provided in the first equipment room 1, and the water inlet mechanism 11 is connected to the coagulation tank 2 and the ceramic membrane tank 3. Specifically, the water inlet mechanism 11 includes a water inlet pump 111 and a water inlet pipe 110, and a water inlet valve is provided on the water inlet pipe 110. This embodiment is a preferred solution, and a first three-way pipe fitting is provided on the water inlet pipe 110, and the water inlet valve includes a first three-way valve 115 adapted to the first three-way pipe fitting, one opening of the first three-way pipe fitting is used for water inlet, and the other two openings are used for water outlet, one of which is used for water outlet is connected to the coagulation tank 2, and the other is used for water outlet is connected to the ceramic membrane tank 3, and the first three-way valve 115 can control the opening and closing of the two water outlet openings, that is, control the water to flow to the coagulation tank 2 or to the ceramic membrane tank 3. As a preferred solution, the first equipment room 1 is also provided with an ozone generator 12 and a coagulation and dosing barrel 13 connected to the water inlet mechanism 11, and a venturi tube 112 and a first pipeline mixer 113 are provided on the water inlet pipe 110 of the water inlet mechanism 11. The ozone generator 12 is connected to the venturi tube 112, and the coagulation and dosing barrel 13 is connected to the first pipeline mixer 113. The coagulation and dosing barrel 13 is equipped with a corresponding PAC dosing pump (not shown in the figure). The outlet of the venturi tube 112 is connected to the inlet of the first pipeline mixer 113, and a first check valve 114 is also provided between the venturi tube and the first pipeline mixer 113 to prevent the liquid from flowing back from the first pipeline mixer 113 into the venturi tube 112.

[0027] The coagulation tank 2 is connected to the ceramic membrane tank 3. An overflow port 20 is provided on the coagulation tank 2, and the coagulation tank 2 is connected to the ceramic membrane tank 3 through the overflow port 20. As a preferred embodiment, a stirring mechanism (not shown in the figure) is provided in the coagulation tank 2, and the stirring mechanism is equipped with a corresponding stirring motor (not shown in the figure) to better remove impurities.

[0028] A ceramic flat membrane assembly 31 is provided in the ceramic membrane pool 3, and the ceramic flat membrane assembly 31 is connected to the clean water pool 4. Specifically, the ceramic flat membrane assembly 31 is connected to the clean water pool 4 through a connecting mechanism 51, and the connecting mechanism 51 includes a water production pump 511 and a connecting pipe 510. One end of the connecting pipe 510 is connected to the ceramic flat membrane assembly 31, and the other end is connected to the clean water pool 4. A second check valve 512 is provided on the connecting pipe 510 to prevent liquid from flowing back into the ceramic flat membrane assembly 31. The connecting pipe 510 is also connected to an outlet pipe 515, and the outlet pipe 515 can lead the treated water out of the water treatment device. Specifically, the connecting pipe 510 is connected to the outlet pipe 515 through a second three-way pipe fitting, and a second three-way valve 514 is provided on the second three-way pipe fitting. The second three-way valve 514 can control the water to flow to the clean water pool 4 or to flow to the outside of the water treatment device through the outlet pipe. In this embodiment, as a preferred solution, an ultraviolet disinfection lamp 513 is also provided on the connecting pipe 510 for ultraviolet disinfection.

[0029] The clean water tank 4 is connected to the ceramic membrane tank 3 through a backwash mechanism 52, and the backwash mechanism 52 includes a backwash pump 521 and a backwash pipe 520. One end of the backwash pipe 520 is connected to the clean water tank 4, and the other end is connected to the ceramic flat membrane assembly 31. A third check valve 522 is provided on the backwash pipe 520 to prevent the liquid from flowing back into the clean water tank 4. As a preferred solution, the second equipment room 5 is also provided with an aeration mechanism 54, and the aeration mechanism 54 includes an aeration fan and a ventilation pipe. The aeration mechanism 54 is connected to the ceramic flat membrane assembly 31, and aeration can be performed through the aeration mechanism 54 during backwashing. The second equipment room 5 is provided with a membrane medicine washing mechanism 53, which is connected to the backwashing mechanism 52. The membrane medicine washing mechanism 53 includes a membrane washing medicine adding barrel 531 and a medicine adding pipeline 530. The membrane washing medicine adding barrel 531 is equipped with a corresponding membrane washing agent dosing pump. The membrane washing agent includes an acid washing agent (such as citric acid) and an alkaline washing agent (such as sodium hypochlorite); a one-way valve 532 is provided on the medicine adding pipeline 530. One end of the medicine adding pipeline 530 is connected to the membrane washing medicine adding barrel 531, and the other end is connected to the backwashing pipeline 520 through a second pipeline mixer 523. During backwashing, the agent in the membrane washing medicine adding barrel 531 is introduced into the water in the backwashing pipeline 520, and the backwashing effect is better and cleaner. The ceramic membrane pool 3 is also connected to a sewage pipe 31 for discharging sludge in the ceramic membrane pool 3. A sewage valve 33 is provided on the sewage pipe 31.

[0030] It should be noted that the connection relationship mentioned above in the utility model, such as the connection between the coagulation tank 2 and the ceramic membrane tank 3, the connection between the ceramic flat membrane assembly 31 and the clean water tank 4, etc., can be that the two are adjacent and have the same hole between them, or that the two are connected by a pipeline, or other solutions that can connect the two. The various valves in this embodiment (such as the first check valve 114, the second check valve 512, the third check valve 522, the one-way valve 532, the sewage valve 33, the first three-way valve 115, the second three-way valve 514, etc.) can be electromagnetic valves, pneumatic valves, or manual valves.

[0031] In a preferred solution of the present embodiment, a control cabinet 50 is provided in the second equipment room 5. Preferably, the ozone generator 12, aeration mechanism 54, stirring motor, water inlet pump 111, PAC dosing pump, membrane washing agent dosing pump, water production pump 511, backwash pump 521, etc. are connected to the control cabinet 50 through electrical signals to control the water treatment device. Further, in order to facilitate monitoring and control, flow meters (not shown in the figure) are provided on the water inlet pipe 110, the connecting pipe 510, the backwash pipe 520, the dosing pipe 530, and the water outlet pipe 515. The flow meter is preferably an electromagnetic flow meter, and is connected to the control cabinet 50 through electrical signals; liquid level sensors (not shown in the figure) are provided in the coagulation tank 2, the ceramic membrane tank 3, and the clean water tank 4, and the liquid level sensors are connected to the control cabinet 50 through electrical signals.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still modify the technical solutions recorded in the above embodiments, or replace part or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A water treatment device based on a ceramic flat membrane, characterized in that: include: A container body and a first equipment room, a coagulation tank, a ceramic membrane tank, and a clear water tank arranged in the container body; The first equipment room is provided with a water inlet mechanism, and the water inlet mechanism is connected to the coagulation tank and the ceramic membrane tank; The coagulation tank is connected to the ceramic membrane tank, a ceramic flat membrane assembly is arranged in the ceramic membrane tank, and the ceramic flat membrane assembly is connected to the clean water tank; The clean water tank is connected to the ceramic membrane tank through a backwash mechanism.

2. The water treatment device based on ceramic flat membrane according to claim 1, characterized in that: The water inlet mechanism comprises a water inlet pump and a water inlet pipeline, and the water inlet pipeline is provided with a water inlet valve.

3. The water treatment device based on ceramic flat membrane according to claim 1, characterized in that: The first equipment room is also provided with an ozone generator and a coagulation and dosing barrel connected to the water inlet mechanism.

4. The water treatment device based on ceramic flat membrane according to claim 3 is characterized in that: The water inlet mechanism is provided with a venturi tube and a first pipeline mixer, the outlet of the venturi tube is connected to the inlet of the first pipeline mixer, the ozone generator is connected to the venturi tube, and the coagulation and dosing barrel is connected to the first pipeline mixer.

5. The water treatment device based on ceramic flat membrane according to claim 1, characterized in that: A stirring mechanism is arranged in the coagulation tank.

6. The water treatment device based on ceramic flat membrane according to claim 1, characterized in that: The coagulation tank is provided with an overflow port, and the coagulation tank is connected with the ceramic membrane tank through the overflow port.

7. The water treatment device based on ceramic flat membrane according to claim 1, characterized in that: The ceramic flat membrane assembly is connected to the clean water tank via a connecting mechanism, which includes a water production pump and a connecting pipe. One end of the connecting pipe is connected to the ceramic flat membrane assembly and the other end is connected to the clean water tank. The connecting pipe is also connected to a water outlet pipe.

8. The water treatment device based on ceramic flat membrane according to claim 7, characterized in that: The connecting pipe is also provided with an ultraviolet disinfection lamp.

9. The water treatment device based on ceramic flat membrane according to claim 1, characterized in that: A second equipment room is also provided in the container body. The ceramic membrane pool is located between the coagulation pool and the clean water pool. The ceramic membrane pool and the coagulation pool are both adjacent to the first equipment room. The ceramic membrane pool and the clean water pool are both adjacent to the second equipment room.

10. The water treatment device based on ceramic flat membrane according to claim 9, characterized in that: A membrane chemical washing mechanism is provided in the second equipment room, and the membrane chemical washing mechanism is connected to the backwashing mechanism; And / or, an aeration mechanism is provided in the second equipment room, and the aeration mechanism is connected to the ceramic flat membrane assembly; And / or, a control cabinet is provided in the second equipment room.

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