A kind of high molecular filter membrane performance testing equipment for pure water purification

Abstract

The utility model discloses a macromolecule filter membrane performance test equipment for pure water purification, including base and control box, the base is fixed with funnel tray, and base still has the liquid storage cylinder through a pair of pneumatic cylinder, and the liquid storage cylinder is installed with the sealing disc through valve no.

Description

Technical Field

[0001] This utility model relates to the field of polymer filter membrane performance testing technology, and in particular to a polymer filter membrane performance testing device for pure water purification. Background Technology

[0002] Polymer filter membranes are a core component in pure water production, and their performance directly affects water quality. During the production process, performance testing of the finished polymer filter membranes is necessary. Currently, most equipment for testing filter membrane performance can only perform tests at room temperature, making it difficult to simulate the impact of different environmental temperatures (such as low or high temperatures) on the membrane's retention rate. This results in significant discrepancies between the data and actual application scenarios. Furthermore, it cannot integrate aging factors such as ultraviolet radiation for anti-aging performance testing, making it difficult to predict the performance degradation of the filter membrane over long-term use.

[0003] To address these issues, we propose a polymer filter membrane performance testing device for pure water purification. Utility Model Content

[0004] The purpose of this invention is to provide a performance testing device for polymer filter membranes used in pure water purification, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A polymer filter membrane performance testing device for pure water purification includes a base and a control box. A funnel plate is fixed on the base, and a liquid storage cylinder is installed on the base via a pair of cylinders. A sealing plate is installed under the liquid storage cylinder via a valve, and the sealing plate is aligned vertically with the funnel plate to clamp the polymer filter membrane. A pressure regulating plate is installed on the liquid storage cylinder via an electric push rod. The pressure regulating plate extends into the liquid storage cylinder and fits tightly against its outer wall. A temperature sensor and a pressure sensor are installed under the pressure regulating plate via a detection rod. A temperature regulating component is provided around the liquid storage cylinder. The temperature regulating component consists of several heating blocks and semiconductor cooling chips evenly distributed along the circumference of the liquid storage cylinder.

[0007] In a further embodiment, the upper end face of the funnel disc has multiple annular sealing grooves, and the lower end face of the sealing disc is equipped with an O-ring corresponding to each sealing groove.

[0008] In a further embodiment, a pair of vertical sliding rods are symmetrically fixed on the outer edge of the funnel disk, and a sliding sleeve is installed on the outer edge of the sealing disk corresponding to each sliding rod, and the sliding rod slides through the inside of the sliding sleeve.

[0009] In a further embodiment, the side wall of the liquid storage cylinder is provided with an inclined inlet pipe, and a valve is installed at the connection end between the inlet pipe and the liquid storage cylinder.

[0010] In a further embodiment, a ring-shaped ultraviolet lamp is also installed on the lower surface of the voltage regulating plate.

[0011] In a further embodiment, the surfaces of the heating block and the semiconductor cooling chip that are in contact with the liquid storage cylinder are coated with thermally conductive silicone grease.

[0012] In a further embodiment, the heating block is wrapped with an insulation layer, a heat insulation strip is provided between the heating block and the semiconductor cooling chip, and a heat-conducting sheet is connected to one end of the semiconductor cooling chip that extends out of the insulation layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The heating block and semiconductor cooling chip in the temperature control component of this invention can conduct temperature to the liquid storage tank, achieving precise control from low temperature to high temperature, and meeting the testing requirements of scenarios such as high temperature sterilization and low temperature purification; at the same time, the ultraviolet lamp at the bottom of the pressure regulating plate irradiates the surface of the filter membrane, which can simulate the sunlight aging environment and simultaneously detect the change in the retention rate of the filter membrane under aging conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model after a partial longitudinal section.

[0017] Figure 3 This is a schematic diagram of the temperature control component and liquid storage tank after a horizontal cross-section.

[0018] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Base; 2. Funnel-shaped plate; 21. Sealing groove; 3. Sealing disc; 31. O-ring; 4. Valve 1; 5. Liquid storage tank; 6. Cylinder; 7. Liquid inlet pipe; 8. Valve 2; 9. Electric push rod; 10. Pressure regulating plate; 11. Temperature regulating component; 111. Insulation layer; 112. Heating block; 113. Semiconductor cooling chip; 114. Insulation strip; 115. Heat conducting sheet; 12. Detection rod; 13. Temperature sensor; 14. Pressure sensor; 15. Control box; 16. Ultraviolet lamp; 17. Slide rod; 18. Sliding sleeve. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] 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.

[0023] Please see Figure 1-2 and Figure 4A polymer filter membrane performance testing device for pure water purification includes a base 1 and a control box 15. A funnel plate 2 is fixed in the middle of the base 1, and the outlet of the funnel plate 2 extends through the bottom of the base 1. Cylinders 6 are installed on both sides of the base 1. The output rod at the top of the cylinder 6 is connected to the lug of the liquid storage cylinder 5, which is used to drive the liquid storage cylinder 5 to rise and fall. A sealing plate 3 is installed under the liquid storage cylinder 5 through a valve 4, and the sealing plate 3 is aligned vertically with the funnel plate 2 to clamp the polymer filter membrane. The upper end face of the funnel plate 2 has multiple annular sealing grooves 21, and the lower end face of the sealing plate 3 corresponds to each sealing groove 21. Each is equipped with an O-ring 31. When the sealing disc 3 and the funnel disc 2 are pressed together, the O-ring 31 is pressed into the sealing groove 21 to improve the sealing performance. The side wall of the liquid storage cylinder 5 is provided with an inclined liquid inlet pipe 7, and the connection end between the liquid inlet pipe 7 and the liquid storage cylinder 5 is equipped with a valve 8 to facilitate liquid inlet. A pair of vertical sliding rods 17 are symmetrically fixed on the outer edge of the funnel disc 2. A sliding sleeve 18 is installed on the outer edge of the sealing disc 3 corresponding to each sliding rod 17, and the sliding rod 17 slides through the inside of the sliding sleeve 18. The sliding action between the sliding rod 17 and the sliding sleeve 18 limits the position of the funnel disc 2 and the sealing disc 3 to ensure that the two are always aligned.

[0024] Please see Figure 2 A horizontal frame is provided on the liquid storage tank 5, and an electric push rod 9 is installed on the horizontal frame. The output end of the electric push rod 9 passes through the bottom of the horizontal frame and is connected to the pressure regulating plate 10. The pressure regulating plate 10 extends into the liquid storage tank 5 and fits tightly against its outer wall. When valve 2 8 and valve 1 4 are completely closed, the pressure in the liquid storage tank 5 can be adjusted by adjusting the height of the pressure regulating plate 10. A detection rod 12 is installed under the pressure regulating plate 10, and a pressure sensor 14 is installed at the bottom of the detection rod 12 to monitor the pressure and feed the detection value back to the controller in the control box 15. The controller controls the extension and retraction length of the electric push rod 9. A temperature sensor 13 is installed on the side wall of the detection rod 12 to detect the liquid temperature and feed the detection value back to the controller in the control box 15. A ring-shaped ultraviolet lamp 16 is also installed on the lower surface of the pressure regulating plate 10. The ultraviolet lamp 16 irradiates the surface of the filter membrane to simulate the sunlight aging environment.

[0025] Please see Figure 3A temperature regulating component 11 is provided around the liquid storage cylinder 5. The temperature regulating component 11 consists of several heating blocks 112 and semiconductor cooling chips 113 evenly distributed around the circumference of the liquid storage cylinder 5. The controller in the control box 15 can control the working power of the heating blocks 112 and semiconductor cooling chips 113. Thermal grease is applied to the gap between the cooling surfaces of the heating blocks 112 and semiconductor cooling chips 113 and the liquid storage cylinder 5 to improve the temperature transfer efficiency. The heating blocks 112 are wrapped with a heat insulation layer 111 to reduce heat loss. A heat insulation strip 114 is provided between the heating blocks 112 and the semiconductor cooling chips 113 to reduce mutual interference between the heating blocks 112 and the semiconductor cooling chips 113 during operation. The cooling surface of the semiconductor cooling chip 113 is in contact with the liquid storage cylinder 5, while the heating surface extends out of the heat insulation layer 111 and is connected to a heat-conducting sheet 115 to facilitate heat conduction to the outside.

[0026] Workflow: First, place the filter membrane on the funnel plate 2. Cylinder 6 drives the sealing plate 3 to press down and clamp. Then, open valve 2 8 and inject the test liquid into the storage cylinder 5 through the inlet pipe 7. The concentration of the test liquid is measured in advance by a conductivity meter. Then, start the temperature control component 11, set the target temperature, and the electric push rod 9 pushes the pressure regulating plate 10 down to pressurize to the set value. Turn on the ultraviolet lamp 16 to simulate irradiation aging. Open valve 1 4, and the filtrate flows out, passing through the filter membrane and flowing out from the bottom of the funnel plate 2. Place a container at the bottom of the funnel plate 2 to collect the filtrate. Then, measure the filtrate concentration using a conductivity meter. By comparing the concentrations before and after and combining them with the retention rate calculation formula, the test data can be calculated. It should be noted that only one variable is maintained for each test. For example, when it is necessary to detect temperature changes, the pressure and aging values ​​need to be kept constant.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A polymer filter membrane performance testing device for pure water purification, comprising a base (1) and a control box (15), characterized in that: A funnel plate (2) is fixed on the base (1), and a liquid storage cylinder (5) is installed on the base (1) via a pair of cylinders (6). A sealing plate (3) is installed under the liquid storage cylinder (5) via a valve (4), and the sealing plate (3) is aligned vertically with the funnel plate (2) to clamp the polymer filter membrane. A pressure regulating plate (10) is installed on the liquid storage cylinder (5) via an electric push rod (9). The pressure regulating plate (10) extends into the liquid storage cylinder (5) and fits tightly against its outer wall. A temperature sensor (13) and a pressure sensor (14) are installed under the pressure regulating plate (10) via a detection rod (12). A temperature regulating component (11) is provided around the liquid storage cylinder (5). The temperature regulating component (11) consists of several heating blocks (112) and semiconductor cooling chips (113) evenly distributed around the circumference of the liquid storage cylinder (5).

2. The polymer filter membrane performance testing device for pure water purification according to claim 1, characterized in that: The upper end face of the funnel plate (2) has multiple annular sealing grooves (21), and the lower end face of the sealing plate (3) is equipped with an O-ring (31) corresponding to each sealing groove (21).

3. The polymer filter membrane performance testing device for pure water purification according to claim 1, characterized in that: A pair of vertical sliding rods (17) are symmetrically fixed on the outer edge of the funnel plate (2). A sliding sleeve (18) is installed on the outer edge of the sealing plate (3) corresponding to each sliding rod (17), and the sliding rod (17) slides through the inside of the sliding sleeve (18).

4. The polymer filter membrane performance testing device for pure water purification according to claim 1, characterized in that: The side wall of the liquid storage cylinder (5) is provided with an inclined inlet pipe (7), and a valve (8) is installed at the connection end between the inlet pipe (7) and the liquid storage cylinder (5).

5. The polymer filter membrane performance testing device for pure water purification according to claim 1, characterized in that: A ring-shaped ultraviolet lamp (16) is also installed on the lower surface of the pressure regulating plate (10).

6. The polymer filter membrane performance testing device for pure water purification according to claim 1, characterized in that: The surfaces of the heating block (112) and the semiconductor cooling chip (113) that are in contact with the liquid storage cylinder (5) are coated with thermally conductive silicone grease.

7. The polymer filter membrane performance testing device for pure water purification according to claim 1, characterized in that: The heating block (112) is wrapped with a heat insulation layer (111), and a heat insulation strip (114) is provided between the heating block (112) and the semiconductor cooling chip (113). One end of the semiconductor cooling chip (113) that extends out of the heat insulation layer (111) is connected to a heat-conducting sheet (115).

Images