Ceramic membrane unit capable of continuously operating

Abstract

The embodiment of the utility model discloses a ceramic membrane unit capable of continuously operating, which comprises two water storage tanks, a circulating water pump, ceramic membranes and a liquid discharge pump, the upper ends of the water storage tanks are provided with pipelines I, the two pipelines I are connected with a pipeline II, one end of each ceramic membrane is connected with the pipeline II through a pipeline III, and the other end of each ceramic membrane is connected with the liquid discharge pump. The other end of each ceramic membrane is connected with a fourth pipeline through a third pipeline, the fourth pipeline is connected with a circulating water pump, the lower ends of the two water storage tanks are connected with a water inlet pipeline of the circulating water pump through a fifth pipeline, and the lower ends of the two water storage tanks are connected with a liquid discharging pump through a sixth pipeline and a seventh pipeline respectively. The utility model overcomes the defect that concentrated water needs to be discharged regularly in the prior art, and is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a sustainably operated ceramic membrane unit. Background Art

[0002] Ceramic ultrafiltration membrane is an inorganic membrane technology. It is a physical filtration technology that separates substances of different molecular weights in a solution based on the membrane's selective permeability to substances. Its basic principle is osmosis. When osmosis occurs, the solution on one side of the raw material enters the membrane channel under pressure. By utilizing the small pore size and high interception accuracy of the ceramic ultrafiltration membrane, macromolecular substances in the solution can be intercepted, and small molecular substances can pass through the membrane to form dialysate and be produced from the other side. This process can be used to separate, concentrate and purify nanoscale substances in a variety of solutions.

[0003] The ceramic ultrafiltration membrane adopts the filtering form of "cross-flow filtration" and has a smooth membrane channel and a large membrane flux. Therefore, it is not easy to be blocked during the filtration of the solution. In addition, its chemical properties are also very stable, with the advantages of high temperature resistance, acid and alkali resistance, pollution resistance, and is not easy to scale and damage. For this reason, the ceramic ultrafiltration membrane is easy to clean and maintain and has a long service life. It can adapt well to pasteurization and online CIP cleaning, and is not easy to be damaged during the cleaning process.

[0004] As a physical filtration technology, the application of ceramic ultrafiltration membrane can save various reaction reagents and catalysts, avoid phase change in production, save a lot of production costs for enterprises, and improve the utilization rate of production raw materials. Its operation is simple and the process flow is short, which can greatly shorten the production cycle and improve the production efficiency and quality of enterprises. Its membrane components also occupy a relatively small area, which is easy to manage. At the same time, it can also realize automated operation, and the labor cost is also effectively reduced.

[0005] At present, during ceramic ultrafiltration, the concentrated water after ultrafiltration flows into the water storage tank, then merges with the ultrafiltration water inlet pipeline, and is pumped into the ceramic ultrafiltration membrane by a water pump to increase the output of clean water. As the concentration of the liquid in the water storage tank continues to increase, the osmotic pressure becomes greater and greater, and the net water output at the water production end becomes smaller and smaller until there is no water. In order to ensure that the ceramic membrane can work effectively, it is necessary to stop the operation, drain the concentrated water in the water storage tank, and then run the ceramic ultrafiltration system. Therefore, there are defects such as the need to drain the concentrated water regularly and difficulty in cleaning. Utility Model Content

[0006] The utility model provides a ceramic membrane unit which can operate sustainably, solves the defect of the prior art that the concentrate needs to be discharged regularly, and is convenient to clean.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The utility model discloses a sustainably operated ceramic membrane unit, comprising a water storage tank, a circulating water pump, a ceramic membrane and a drainage pump. Two water storage tanks are provided, and a pipeline one is provided at the upper end of the water storage tank. The two pipelines one are connected to the pipeline two, one end of each ceramic membrane is connected to the pipeline two through the pipeline three, and the other end of each ceramic membrane is connected to the pipeline four through the pipeline three, and the pipeline four is connected to the circulating water pump. The lower ends of the two water storage tanks are connected to the water inlet pipeline of the circulating water pump through the pipeline five, and the lower ends of the two water storage tanks are connected to the drainage pump through the pipeline six and the pipeline seven respectively.

[0009] Preferably, the drainage pump, the circulating water pump, the pipe four and the water inlet pipe are all installed on the unit bracket, the unit bracket is provided with a circulating water pump mounting frame, and the two circulating water pumps are installed on the circulating water pump mounting frame.

[0010] Preferably, a water inlet tank is provided on the water storage tank, one end of the pipeline passes through the water inlet tank, and a float liquid level sensor is provided on the upper end of each circulating water pump.

[0011] Preferably, a vertically arranged bracket 1 is provided at the rear end of the unit bracket, and 6 ceramic membranes are vertically installed at the bracket 1.

[0012] Preferably, a vertically arranged bracket 2 is further provided at the rear end of the unit bracket, the bracket 1 is perpendicular to the bracket 2, and the pipe 2 is installed on the bracket 1 and the bracket 2.

[0013] Preferably, a pressure gauge and a manual butterfly valve are provided on pipeline 2, and a pressure gauge and a temperature gauge are provided on pipeline 4.

[0014] Preferably, pneumatic butterfly valves are provided on pipeline 1, pipeline 5, pipeline 6, pipeline 7 and the water inlet pipeline of the circulating water pump.

[0015] Preferably, both pipeline 2 and pipeline 4 are provided with pneumatic butterfly valves.

[0016] Preferably, an electromagnetic flowmeter is provided on the water inlet pipe of the circulating water pump.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. Reasonable structure, safe and reliable. The utility model is equipped with two water storage tanks, which can alternately drain the concentrated water to keep the ceramic membrane running continuously.

[0019] 2. The system is highly integrated and installed vertically, occupying less space. The ceramic membranes are connected in parallel, and the number of ceramic membranes can be increased or decreased according to the water production requirements. At the same time, the pump group, valves and pipelines are highly integrated and modularized, and further integrated, occupying a smaller area.

[0020] 3. The main lines of the inlet and outlet of the ceramic membrane are equipped with pneumatic butterfly valves for reverse cleaning, which can be connected to the cleaning pipeline to clean the ultrafiltration ceramic membrane group.

[0021] 4. Simple maintenance and convenient operation. The utility model highly integrates the membrane system and the pump and valve system, and the integrated pump and valve assembly is more convenient to operate. The workload of disassembly and maintenance of the membrane system is almost zero. It has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of an embodiment of the utility model.

[0023] Figure 2 It is the front view of the embodiment of the utility model.

[0024] Figure 3 It is a top view of an embodiment of the utility model.

[0025] Figure 4 It is a flow chart of an embodiment of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0027] As shown in the figure, the utility model discloses a sustainable ceramic membrane unit, including a water storage tank 3, a circulating water pump 4, a ceramic membrane 6 and a liquid discharge pump 11. Two water storage tanks 3 are provided, and a pipe 13 is provided at the upper end of the water storage tank 3. The two pipes 13 are connected to the pipe 2 14. One end of each ceramic membrane 6 is connected to the pipe 2 14 through the pipe 3 15, and the other end of each ceramic membrane 6 is connected to the pipe 4 16 through the pipe 3 15. The pipe 4 16 is connected to the circulating water pump 4. The lower ends of the two water storage tanks 3 are connected to the water inlet pipe 18 of the circulating water pump 4 through the pipe 5 17. The lower ends of the two water storage tanks 3 are connected to the liquid discharge pump 11 through the pipe 6 19 and the pipe 7 20 respectively. The two water storage tanks can alternately drain the concentrated water to keep the ceramic membrane running continuously.

[0028] In one embodiment of the utility model, the drainage pump 11, the circulating water pump 4, the pipe 4 16 and the water inlet pipe 18 are all installed on the unit bracket 1, and the unit bracket 1 is provided with a circulating water pump mounting frame 21, and two circulating water pumps 4 are installed on the circulating water pump mounting frame 21.

[0029] In an embodiment of the utility model, a water inlet groove 31 is provided on the water storage tank 3, one end of the pipe 13 passes through the water inlet groove 31, and a float liquid level sensor 10 is provided on the upper end of each circulating water pump 4.

[0030] In an embodiment of the utility model, both pipeline 2 and pipeline 4 are provided with pneumatic butterfly valves 5. The pneumatic butterfly valves 5 on pipeline 2 14 and pipeline 4 16 can be connected to a cleaning pipeline to clean the ultrafiltration ceramic membrane group.

[0031] For the convenience of description, the seven pneumatic butterfly valves are marked as 5-1, 5-2, 5-3, 5-4, 5-5, 5-6 and 5-7 respectively. The water storage tanks are divided into 3-1 and 3-2.

[0032] The operation of the utility model is divided into three working processes: liquid replenishment, work, and concentrated discharge. The system follows the process cycle of liquid replenishment-work-concentrated discharge-liquid replenishment. The specific operation process is as follows:

[0033] 1. Open the pneumatic butterfly valves 5-3 and 5-4, start the circulating water pump 4, and pump the raw water into the water storage tank 3-1.

[0034] 2. When the float liquid level sensor 10 reaches the upper limit liquid level value set by the float liquid level sensor 10, the pneumatic butterfly valve 5-3 is closed and the pneumatic butterfly valve 5-6 is opened.

[0035] 3. With the increase of the water output of the ultrafiltration membrane 6, the liquid level in the water tank 3-1 gradually decreases. When the liquid level drops to the lower limit liquid level value set by the float liquid level sensor 10, the pneumatic butterfly valves 5-4 and 5-6 are closed. At the same time, 5-1, 5-3, and 5-5 are opened, and the drainage pump 11 is started. That is, while the water tank 3-1 is draining, the water tank 3-2 is replenishing liquid.

[0036] 4. When the liquid level of the water storage tank 3-2 reaches the upper limit liquid level value set by the float liquid level sensor 10, the pneumatic butterfly valve 5-3 is closed and the pneumatic butterfly valve 5-7 is opened. As the water output of the ultrafiltration membrane 6 increases, the liquid level in the water storage tank 3-2 gradually decreases. When the liquid level drops to the lower limit liquid level value set by the float liquid level sensor 10 (at this time, the water storage tank 3-1 reaches a low liquid level), the pneumatic butterfly valve 5-1, the pneumatic butterfly valve 5-5, and the pneumatic butterfly valve 5-7 are closed, and the pneumatic butterfly valve 5-2, the pneumatic butterfly valve 5-3, and the pneumatic butterfly valve 5-4 are opened to replenish the liquid in the water storage tank 3-1, and the water storage tank 3-2 starts to discharge the concentrated liquid. That is, the drainage time of the water storage tank 3-1 is equal to the sum of the replenishment time of the water storage tank 3-2 and its working time.

[0037] 5. Repeat the above steps and run alternately to achieve continuous work.

[0038] In an embodiment of the utility model, a vertically arranged bracket 1 22 is provided at the rear end of the unit bracket 1, and six ceramic membranes 6 are vertically installed at the bracket 1 22. The bracket 1 22 plays a fixing role.

[0039] In an embodiment of the utility model, a plurality of vertically arranged brackets 23 are further provided at the rear end of the unit bracket 1 , the bracket 1 22 is perpendicular to the bracket 2 23 , and the pipe 2 14 is installed on the bracket 1 22 and the bracket 2 23 .

[0040] In an embodiment of the utility model, a pressure gauge 8 and a manual butterfly valve 7 are provided on the second pipeline 14 , and a pressure gauge 8 and a temperature gauge 24 are provided on the fourth pipeline 16 .

[0041] In an embodiment of the utility model, pneumatic butterfly valves 5 are provided on pipeline 1, pipeline 5, pipeline 6, pipeline 7 and the water inlet pipeline of the circulating water pump.

[0042] In one embodiment of the present invention, an electromagnetic flowmeter 2.1-22 is provided on the water inlet pipe 18 of the circulating water pump for counting the flow.

[0043] The above contents are merely examples and explanations of the structure of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the present utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A sustainable ceramic membrane unit, characterized by: It includes a water storage tank, a circulating water pump, a ceramic membrane and a drainage pump. There are two water storage tanks. A pipe 1 is provided at the upper end of the water storage tank. The two pipes 1 are connected to the pipe 2. One end of each ceramic membrane is connected to the pipe 2 through the pipe 3. The other end of each ceramic membrane is connected to the pipe 4 through the pipe 3. The pipe 4 is connected to the circulating water pump. The lower ends of the two water storage tanks are connected to the water inlet pipe of the circulating water pump through the pipe 5. The lower ends of the two water storage tanks are connected to the drainage pump through the pipe 6 and the pipe 7 respectively.

2. A sustainable ceramic membrane unit according to claim 1, characterized in that: The discharge pump, circulating water pump, pipe 4 and water inlet pipe are all installed on the unit bracket. A circulating water pump mounting frame is provided on the unit bracket, and two circulating water pumps are installed on the circulating water pump mounting frame.

3. A sustainable ceramic membrane unit according to claim 2, characterized in that: A water inlet tank is provided on the water storage tank, one end of a pipe passes through the water inlet tank, and a float liquid level sensor is provided on the upper end of each circulating water pump.

4. A sustainable ceramic membrane unit according to claim 2, characterized in that: A vertically arranged bracket is provided at the rear end of the unit bracket, and 6 ceramic membranes are vertically installed at the bracket.

5. A sustainable ceramic membrane unit according to claim 4, characterized in that: A vertically arranged bracket 2 is also provided at the rear end of the unit bracket, the bracket 1 is perpendicular to the bracket 2, and the pipe 2 is installed on the bracket 1 and the bracket 2.

6. A sustainable ceramic membrane unit according to claim 1, characterized in that: Pipeline 2 is equipped with a pressure gauge and a manual butterfly valve, and pipeline 4 is equipped with a pressure gauge and a temperature gauge.

7. The sustainable ceramic membrane unit according to claim 1, characterized in that: Pneumatic butterfly valves are provided on the water inlet pipes of pipeline 1, pipeline 5, pipeline 6, pipeline 7 and the circulating water pump.

8. The sustainable ceramic membrane unit according to claim 1, characterized in that: Pneumatic butterfly valves are provided on pipeline 2 and pipeline 4.

9. The sustainable ceramic membrane unit according to claim 1, characterized in that: An electromagnetic flowmeter is installed on the water inlet pipe of the circulating water pump.

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