A rapid detection device for separation performance of a molecular sieve membrane

Abstract

The utility model discloses a quick detection device of molecular sieve membrane separation performance, including six detection structures, six detection structures are equidistance setting in the front of cabinet, and the pipe body of detection structure is vertically installed in the front of cabinet, and the upper end cover and lower end cover can be covered in the both ends of molecular sieve membrane pipe of detection respectively, and the lower end cover is connected through the screw thread on the round mouth of pipe body bottom end, and the water inlet of water bottle is connected through the screw thread the water outlet of lower end cover, and the cabinet is provided with the dye water tank and waste water tank and is connected with the pipe body, and the inside of cabinet still is provided with six vacuum pumps and is connected through the hose respectively the exhaust port of six water bottles, this device sets up a plurality of detection structures on the cabinet, can detect simultaneously to a plurality of molecular sieve membrane tubes, has improved the detection efficiency greatly, satisfies the batch detection demand, and the design of water bottle is convenient for operating personnel to observe the liquid level and color change of separated water directly, is convenient for the quick acquisition detection result, and is convenient for comparing with other detection results simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of molecular sieve membrane detection technology, specifically a rapid detection device for the separation performance of molecular sieve membranes. Background Technology

[0002] In many fields such as chemical engineering, environmental protection, and food processing, liquid separation is a crucial process. Its separation effect and efficiency directly affect core indicators such as product quality, production cost, and resource utilization. As a new type of high-efficiency separation material, molecular sieve membranes have shown great application potential in liquid separation due to their unique pore structure and excellent separation performance. They have gradually become a research hotspot and industrial application focus in the field of separation technology. In the research, development, production, and practical application of molecular sieve membranes, accurate and rapid evaluation of their separation performance is a crucial prerequisite and foundation. However, traditional methods for testing the separation performance of molecular sieve membranes often suffer from problems such as cumbersome operation, long testing cycle, and difficulty in testing multiple samples simultaneously, which cannot meet the needs of modern scientific research and industrial production for efficient testing.

[0003] To address this issue, we have designed a rapid detection device for the separation performance of molecular sieve membranes. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a rapid detection device for the separation performance of molecular sieve membranes, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A rapid detection device for the separation performance of molecular sieve membranes, comprising six detection structures. The six detection structures are equally spaced on the front of a cabinet. Each structure includes a tube, an upper end cap, a lower end cap, and a water receiving bottle. The tube is vertically mounted on the front of the cabinet via a bracket, and has a round opening at its bottom. The upper and lower end caps can be respectively placed on both ends of the molecular sieve membrane tube to be tested. The lower end cap is threaded to the round opening at the bottom of the tube and has a water outlet in the middle. The water receiving bottle has an inlet and an outlet at its top, and the inlet of the water receiving bottle is threaded to the outlet of the lower end cap. A dye tank is located in the upper part of the cabinet, and a wastewater tank is located in the lower part. The top and bottom of each tube are respectively connected to the bottom of the dye tank and the top of the wastewater tank via pipes. Six vacuum pumps are also installed inside the cabinet, and each vacuum pump has a flexible hose connected to its inlet. The flexible hoses of the six vacuum pumps are respectively threaded to the outlets of the water receiving bottles of the six detection structures.

[0006] As a preferred embodiment of this utility model, the pipe body is located below the dye water tank, and a first solenoid valve is installed on the connecting pipe between the pipe body and the dye water tank. The pipe body is located above the wastewater tank, and a second solenoid valve is installed on the connecting pipe between the pipe body and the wastewater tank.

[0007] As a preferred embodiment of this utility model, the tube body is made of transparent plastic tube, with an air hole at the top of the tube body, and a liquid level sensor is installed inside the tube body.

[0008] As a preferred embodiment of this utility model, the length of the tube body is greater than the length of the molecular sieve membrane tube, and both the upper end cap and the molecular sieve membrane tube can be inserted from the round opening at the bottom of the tube body.

[0009] As a preferred embodiment of this utility model, the bottom of the upper end cover and the top of the lower end cover are both provided with round holes for inserting the ends of the molecular sieve membrane tubes, and an O-ring is fixed inside the round hole.

[0010] As a preferred technical solution of this utility model, the water receiving bottle is a colorless and transparent plastic bottle, and the water receiving bottle is marked with volume scale.

[0011] As a preferred technical solution of this utility model, the cabinet is equipped with a controller for controlling the operation of the control device, the side of the cabinet is provided with heat dissipation holes, and the back of the cabinet is provided with an inspection door.

[0012] As a preferred technical solution of this utility model, both the dye tank and the wastewater tank are made of transparent plastic, and both are equipped with liquid level sensors. The dye tank is provided with a water inlet at the top, and the wastewater tank is provided with a drain outlet at the bottom and connected to a drain pipe. The outlet of the drain pipe passes through the side wall of the cabinet and is equipped with a valve.

[0013] As a preferred embodiment of this invention, a vacuum gauge is installed at the connection between the air inlet of the vacuum pump and the hose.

[0014] Compared with the prior art, this utility model provides a rapid detection device for the separation performance of molecular sieve membranes, which has the following beneficial effects:

[0015] This rapid detection device for molecular sieve membrane separation performance, by setting multiple detection structures on the cabinet, can simultaneously detect multiple molecular sieve membrane tubes, greatly improving detection efficiency and meeting batch testing needs. The cabinet has a dye water tank at the top and a wastewater tank at the bottom. The flow of solution between the tubes, dye water tank, and wastewater tank is controlled by valves. Gravity is used to achieve automatic injection and discharge of the solution, which is simple to operate, reduces manual intervention, and saves time and labor costs. By setting a vacuum pump, a stable negative pressure is maintained in the water receiving bottle and molecular sieve membrane tube, ensuring that water molecules can pass through the molecular sieve membrane quickly and stably, improving the detection speed. The design of the water receiving bottle allows operators to directly observe the liquid level and color changes of the separated water, facilitating rapid acquisition of test results and easy comparison with other test results. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the tube body of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the cabinet of this utility model.

[0019] Reference numerals in the attached diagram: 1. Tube body; 2. Upper end cap; 3. Lower end cap; 4. Water receiving bottle; 5. Cabinet; 6. Dye water tank; 7. Wastewater tank; 8. Vacuum pump; 9. Hose; 10. First solenoid valve; 11. Second solenoid valve; 12. Controller; 13. Molecular sieve membrane tube. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please refer to Figures 1-3A rapid detection device for molecular sieve membrane separation performance includes six detection structures, which are equally spaced and installed on the front of a cabinet 5. Each detection structure includes a tube 1, an upper cap 2, a lower cap 3, and a water receiving bottle 4. The tube 1 is a transparent plastic tube, vertically installed and fixed to the front of the cabinet 5 by a bracket. It has a round opening at its bottom and an air hole at its top. A liquid level sensor is installed inside the tube 1. The length of the tube 1 is greater than the length of the molecular sieve membrane tube 13. Both the upper cap 2 and the molecular sieve membrane tube 13 can be inserted through the round opening at the bottom of the tube 1. The bottom of the upper cap 2 and the top of the lower cap 3 have round holes for inserting the ends of the molecular sieve membrane tube 13. The upper cap 2 and the lower cap 3 cover the two ends of the molecular sieve membrane tube 13 to be tested through the round holes. An O-shaped device is fixed inside the round hole. After the end of the molecular sieve membrane tube 13 is inserted into the round hole, the O-ring makes tight contact with the outside of the molecular sieve membrane tube 13. Its function is to seal the gap between the two end caps and the molecular sieve membrane tube 13. The lower end cap 3 is threaded to the round opening at the bottom of the tube body 1, and the connection is sealed by a sealing ring. The lower end cap 3 has a water outlet in the middle. The water receiving bottle 4 is a colorless and transparent plastic bottle with volume markings. The upper part of the water receiving bottle 4 has a water inlet and a vent. The water inlet of the water receiving bottle 4 is threaded to the water outlet of the lower end cap 3, and the connection is sealed by a sealing ring. The upper part of the cabinet 5 has a dye water tank 6, and the lower part has a wastewater tank 7. Both the dye water tank 6 and the wastewater tank 7 are transparent plastic tanks, and both are equipped with liquid level sensors. The dye water tank 6 has a water outlet in the middle of the tube body 1. The unit is equipped with a water inlet, and the wastewater tank 7 has a drain outlet at the bottom connected to a drain pipe. The outlet of the drain pipe passes through the side wall of the cabinet 5 and is equipped with a valve. The cabinet 5 is also equipped with an alarm. When the liquid level sensor in the dye water tank 6 detects that the liquid level is lower than the preset value, or when the liquid level sensor in the wastewater tank 7 detects that the liquid level is higher than the preset value, the alarm is triggered to remind the operator to add liquid to the dye water tank 6 or drain the wastewater tank 7 in time. The top and bottom of each pipe body 1 are connected to the bottom of the dye water tank 6 and the top of the wastewater tank 7 respectively through pipes. The pipe body 1 is located below the dye water tank 6, and a first solenoid valve 10 is installed on the connecting pipe between it and the dye water tank 6. The pipe body 1 is located above the wastewater tank 7, and a valve is installed on the connecting pipe between it and the wastewater tank 7. The second solenoid valve 11, when opened, allows the solution in the dye tank 6 to be discharged into the pipe body 1 by gravity. Opening the second solenoid valve 11 allows the solution in the pipe body 1 to be discharged into the wastewater tank 7 by gravity. The cabinet 5 also houses six vacuum pumps 8, each with a hose 9 connected to its inlet. These hoses 9 are vacuum hoses, and are threaded to the exhaust ports of the six receiving bottles 4 of the detection structures. The connections are sealed with sealing rings. This system expels air from the receiving bottles 4, creating a negative pressure environment. A vacuum gauge is installed at the connection between the inlet of the vacuum pump 8 and the hose 9 to detect the air pressure inside the receiving bottles 4. The cabinet 5 is equipped with a controller 12 to control the operation of the control device.The side of rack 5 has ventilation holes to help dissipate heat from the vacuum pump 8 inside. A maintenance door is located at the rear of rack 5; when it is necessary to add water to the dye tank 6 or to perform maintenance on the vacuum pump 8, this door can be opened for operation.

[0022] Operating Procedure: Before using the device, open the inspection door on the back of cabinet 5, add a mixture of dye and water to dye tank 6, and place the upper cap 2 and lower cap 3 on both ends of the molecular sieve membrane tube 13 to be tested. Then, insert the upper cap 2 and the molecular sieve membrane tube 13 through the round opening at the bottom of the tube body 1, and connect the lower cap 3 to the round opening via threads. Then, connect the inlet of the water bottle 4 to the outlet of the lower cap 3 via threads, and then connect the hose 9 to the vent of the water bottle 4 via threads. Based on the length of the molecular sieve membrane tube 13, set the liquid level in the tube body 1 on the controller 12 to ensure that the liquid level completely submerges the upper cap 2 and the molecular sieve membrane tube 13. After all preparations are complete, start the device. The first solenoid valve 10 will open, and the solution in dye tank 6 will flow into the tube body 1 by gravity until the liquid level in the tube body 1 reaches the set value. 10. Turn off the vacuum pump 8 and start the vacuum pump 8 to expel the air from the water receiving bottle 4, creating a negative pressure state inside the water receiving bottle 4 and the molecular sieve membrane tube 13. Under negative pressure, water molecules in the solution in the tube 1 quickly pass through the molecular sieve membrane on the molecular sieve membrane tube 13, then flow down the tube wall and enter the water receiving bottle 4 through the outlet of the lower end cap 3. Meanwhile, the dye molecules in the solution remain in the tube 1. After a period of time, check the color and liquid level of the water in the water receiving bottle 4. This allows for a quick assessment of the separation performance of the molecular sieve membrane. When multiple molecular sieve membranes are tested simultaneously, the color and liquid level of the water in the water receiving bottle 4 can also be compared to quickly determine the separation performance of different molecular sieve membranes. After the test is completed, turn off the vacuum pump 8 and open the second solenoid valve 12 to discharge the solution in the tube 1 into the wastewater tank 7 by gravity. After the solution in the tube 1 is completely discharged, the water receiving bottle 4 and the molecular sieve membrane tube 13 can be disassembled.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid detection device for the separation performance of molecular sieve membranes, comprising six detection structures, characterized in that: The six detection structures are evenly spaced on the front of the cabinet (5). Each structure includes a tube (1), an upper end cover (2), a lower end cover (3), and a water receiving bottle (4). The tube (1) is vertically mounted on the front of the cabinet (5) via a bracket. It has a round opening at its bottom. The upper end cover (2) and the lower end cover (3) can be placed on both ends of the molecular sieve membrane tube (13) to be tested. The lower end cover (3) is threaded onto the round opening at the bottom of the tube (1). The lower end cover (3) has a water outlet in the middle. The water receiving bottle (4) has an inlet and an outlet at the top. The water inlet of the water bottle (4) is connected to the outlet of the lower end cap (3) by a thread. The upper part of the cabinet (5) is equipped with a dye water tank (6) and the lower part is equipped with a wastewater tank (7). The top and bottom of each tube (1) are connected to the bottom of the dye water tank (6) and the top of the wastewater tank (7) by pipes respectively. The cabinet (5) is also equipped with six vacuum pumps (8). The air inlet of each vacuum pump (8) is connected to a hose (9). The hoses (9) of the six vacuum pumps (8) are respectively connected to the exhaust ports of the water bottles (4) of the six detection structures by threads.

2. The rapid detection device for molecular sieve membrane separation performance according to claim 1, characterized in that: The pipe body (1) is located below the dye water tank (6), and a first solenoid valve (10) is installed on the connecting pipe between it and the dye water tank (6). The pipe body (1) is located above the wastewater tank (7), and a second solenoid valve (11) is installed on the connecting pipe between it and the wastewater tank (7).

3. The rapid detection device for molecular sieve membrane separation performance according to claim 1, characterized in that: The tube (1) is made of transparent plastic tube, with an air hole at the top and a liquid level sensor installed inside.

4. The rapid detection device for molecular sieve membrane separation performance according to claim 1, characterized in that: The length of the tube body (1) is greater than the length of the molecular sieve membrane tube (13), and both the upper end cap (2) and the molecular sieve membrane tube (13) can be inserted through the round opening at the bottom of the tube body (1).

5. The rapid detection device for molecular sieve membrane separation performance according to claim 1, characterized in that: The bottom of the upper end cap (2) and the top of the lower end cap (3) are both provided with round holes for the end of the molecular sieve membrane tube (13) to be inserted, and an O-ring is fixed inside the round hole.

6. The rapid detection device for molecular sieve membrane separation performance according to claim 1, characterized in that: The water receiving bottle (4) is a colorless and transparent plastic bottle, and the water receiving bottle (4) is marked with volume scale.

7. The rapid detection device for molecular sieve membrane separation performance according to claim 1, characterized in that: The cabinet (5) is equipped with a controller (12) for controlling the operation of the control device. The cabinet (5) has heat dissipation holes on its side and an inspection door on its back.

8. The rapid detection device for molecular sieve membrane separation performance according to claim 1, characterized in that: Both the dye tank (6) and the wastewater tank (7) are transparent plastic tanks, and both are equipped with liquid level sensors. The dye tank (6) has a water inlet at the top, and the wastewater tank (7) has a drain outlet at the bottom and is connected to a drain pipe. The outlet of the drain pipe passes through the side wall of the cabinet (5) and is equipped with a valve.

9. The rapid detection device for molecular sieve membrane separation performance according to claim 1, characterized in that: A vacuum gauge is installed at the connection between the air inlet of the vacuum pump (8) and the hose (9).

Images