CN211602833U - Receive filter membrane capability test device - Google Patents
Receive filter membrane capability test device Download PDFInfo
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- CN211602833U CN211602833U CN202020116396.7U CN202020116396U CN211602833U CN 211602833 U CN211602833 U CN 211602833U CN 202020116396 U CN202020116396 U CN 202020116396U CN 211602833 U CN211602833 U CN 211602833U
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Abstract
The utility model discloses a receive filter membrane capability test device relates to membrane separation technical field. The device comprises a control system, a first storage tank, a pressure pump, a nano filter tank, a pressure sensor, a second storage tank, an electronic scale and a first temperature sensor; the pressure pump is communicated with the first storage tank and is connected with the control system; the nanofiltration tank is communicated with the pressure pump, a nanofiltration membrane is contained in the nanofiltration tank and is divided into a trapped liquid cavity and a permeated liquid cavity by the nanofiltration membrane, and the trapped liquid cavity is communicated with the first storage tank; the pressure sensor is arranged between the nano filter tank and the pressure pump and is connected with the control system; the second storage tank is communicated with the permeate cavity; a second storage tank is arranged on the electronic scale, and the electronic scale is connected with the control system; the first temperature sensor is arranged between the liquid trapping cavity and the first storage tank and is connected with the control system. The testing device can simulate the condition that the performance of the nanofiltration membrane is detected under the conditions of preset pressure and preset temperature so as to select the nanofiltration membrane meeting the actual requirement.
Description
Technical Field
The utility model relates to a membrane separation technical field, concretely relates to receive filter membrane capability test device.
Background
Nanofiltration is a pressure-driven membrane separation process between reverse osmosis and ultrafiltration, used to separate substances with relatively low molecular mass, such as inorganic salts or small organic molecules like glucose, sucrose, etc., from a solvent. Nanofiltration, also known as low pressure reverse osmosis, is an emerging field of membrane separation technology, and has separation performance between reverse osmosis and ultrafiltration, allowing some inorganic salts and some solvents to permeate through the membrane, thereby achieving separation effect.
The nanofiltration membrane has a pore diameter of about several nanometers, generally 1 to 2 nanometers, and is called a nanofiltration membrane. Under the same condition, the volume for detecting the hourly permeation quantity of the nanofiltration membrane per square meter is an important standard for judging the performance of the nanofiltration membrane, and the production and use separation states of the nanofiltration membrane cause that the nanofiltration membrane performance test parameters provided by manufacturers are not suitable for the reference standard when the nanofiltration membrane is selected in the actual industry.
After the nanofiltration membrane is manufactured, a membrane manufacturer generally performs corresponding performance tests on the manufactured sheet nanofiltration membrane. However, in practical industrial application, the influence of various factors (temperature, pressure and the like) on the performance of the nanofiltration membrane needs to be considered, and the nanofiltration membrane is mostly manufactured into a roll membrane in industry; when the nanofiltration membrane is applied to a new application field, corresponding test data are lacked to judge the actual performance of various nanofiltration membranes, so that excellent nanofiltration membranes which meet the industrial production are selected.
Therefore, a nanofiltration membrane performance testing device is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of receive filter membrane capability test device can simulate out and detect out the performance of receiving the filter membrane under the condition of predetermineeing pressure and predetermineeing the temperature good or bad to select out the filter membrane that receives that accords with actual demand.
To achieve the purpose, the utility model adopts the following technical proposal:
a nanofiltration membrane performance test device comprises:
a control system;
the first storage tank is used for containing a test solution;
the pressure pump is communicated with the first storage tank and is connected with the control system;
the nanofiltration membrane is contained in the nanofiltration tank and is divided into a trapped liquid cavity and a permeated liquid cavity by the nanofiltration membrane, and the trapped liquid cavity is communicated with the first storage tank;
the pressure sensor is arranged between the nano filter tank and the pressure pump and is connected with the control system;
the first temperature sensor is arranged between the liquid interception cavity and the first storage tank and is connected with the control system;
the second storage tank is communicated with the permeate cavity and is used for storing permeate seeped out by the nanofiltration membrane;
and the electronic scale is placed on the second storage tank and is connected with the control system.
Optionally, receive filter membrane capability test device still includes the filter, the filter both ends respectively with the force pump with receive the filtering pond intercommunication, pressure sensor locates receive the filtering pond with between the filter.
Optionally, the nanofiltration membrane performance testing device further comprises a safety valve, one end of the safety valve is communicated with the first storage tank, and the other end of the safety valve is communicated with a pipeline between the pressure pump and the filter.
Optionally, the nanofiltration membrane performance test device further comprises a cooler, wherein the cooler is arranged between the trapped fluid cavity and the first storage tank and is used for cooling the trapped fluid to a preset temperature.
Optionally, the nanofiltration membrane performance test device further comprises a second temperature sensor, the second temperature sensor is arranged between the cooler and the first storage tank, and the second temperature sensor is connected with the control system.
Optionally, the nanofiltration membrane performance test device further comprises a pressure gauge, and the pressure gauge is arranged between the nanofiltration chamber and the cooler.
Optionally, the nanofiltration membrane performance testing device further comprises a pressure regulating valve, and the pressure regulating valve is arranged between the pressure gauge and the nanofiltration chamber.
Optionally, the nanofiltration membrane performance testing device further comprises a flow meter, and the flow meter is arranged between the cooler and the first storage tank.
Optionally, the nanofiltration membrane performance testing device further comprises two ball valves, one of the two ball valves is located between the permeate cavity and the second storage tank, and the other is located between the retentate cavity and the pressure gauge.
Optionally, receive filter membrane performance test device still includes the teletransmission level gauge, the teletransmission level gauge install in on the first storage tank, just the teletransmission level gauge with control system connects.
The utility model has the advantages that:
the utility model provides a receive filter membrane capability test device can simulate out through installing pressure sensor and first temperature sensor on the device and measure the performance of receiving the filter membrane under the condition of predetermineeing pressure and predetermineeing the temperature and good or bad to select out the filter membrane that receives that accords with actual industrial demand, and carry out data acquisition with control system is automatic, make the more accurate automation of testing process.
Drawings
Fig. 1 is the embodiment of the utility model provides a receive filter membrane capability test device's overall structure sketch map.
In the figure:
100. a control system; 200. a first pipeline; 300. a second pipeline; 400. a third pipeline; 500. a safety line;
1. a first storage tank; 2. a pressure pump; 3. a nano filter; 4. a pressure sensor; 5. a first temperature sensor; 6. a second storage tank; 7. an electronic scale; 8. a filter; 9. a safety valve; 10. a cooler; 11. a second temperature sensor; 12. a pressure gauge; 13. a pressure regulating valve; 14. a flow meter; 15. a remote liquid level meter; 16. a ball valve.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the nanofiltration membrane performance testing device provided by the utility model comprises a control system 100, a first storage tank 1, a pressure pump 2, a nanofiltration tank 3, a pressure sensor 4, a first temperature sensor 5, a second storage tank 6 and an electronic scale 7. In particular, the control system 100 is used to automatically collect relevant data and ensure proper operation of the entire test apparatus. The first storage tank 1 is used for storing a liquid to be tested, and the first storage tank 1 is sealed to improve the accuracy of the experiment. One end of the pressure pump 2 is communicated with the first storage tank 1, the other end of the pressure pump is communicated with the nanofiltration tank 3, and the pressure pump 2 is connected with the control system 100 and used for providing preset nanofiltration pressure for the testing device. The nano filter membrane is contained in the nano filter 3 and is divided into a trapped liquid cavity and a permeated liquid cavity by the nano filter membrane, and the trapped liquid cavity is communicated with the first storage tank 1 so that the trapped liquid can flow back to the first storage tank 1, and the circular flow of the testing device is realized. The pressure sensor 4 is arranged between the nano filter 3 and the pressure pump 2, and the pressure sensor 4 is connected with the control system 100 to feed back the real-time pressure of the testing device. The first temperature sensor 5 is arranged between the liquid trapping cavity and the first storage tank 1, is connected with the control system 100, and is used for feeding back the temperature of the testing device in real time. The second reservoir 6 is for storing permeate and the second reservoir 6 is sealed and in communication with the permeate chamber. The second storage tank 6 has been placed on electronic scale 7, and electronic scale 7 is connected with control system 100 for the weight of measurement penetrant, the penetrant density that combines to detect obtains the volume of infiltration liquid in the certain time, compares in the mode that current graduated flask directly read the penetrant volume, and the electronic scale 7 connection control system 100's of this application the mode is more accurate, can effectively reduce the error.
The above devices are all communicated through pipelines, the pipelines comprise a first pipeline 200, a second pipeline 300 and a third pipeline 400, the first pipeline 200 is a main pipeline and is simultaneously communicated with the second pipeline 300 and the third pipeline 400, the second pipeline 300 is a trapped fluid circulation pipeline, and the third pipeline 400 is a penetrating fluid circulation pipeline. Specifically, one end of the pressure pump 2 is communicated with the first storage tank 1 through a first pipeline 200, the other end of the pressure pump is communicated with the nano filter 3 through the first pipeline 200, and the pressure sensor 4 is arranged on the first pipeline 200. The trapped fluid chamber is communicated with the first storage tank 1 through a second pipeline 300, and the first temperature sensor 5 is arranged on the second pipeline 300. The permeate chamber is in communication with the second reservoir 6 via a third conduit 400. As shown in fig. 1, when the testing apparatus is in operation, a testing solution flows into a first pipeline 200 from a first storage tank 1, after nanofiltration is performed in a nanofiltration tank 3, a trapped fluid flows back to the first storage tank 1 through a second pipeline 300, and a penetrating fluid flows into a second storage tank 6 through a third pipeline 400. It will be appreciated that the connections written above and below in this embodiment to the control system 100 are all electrical connections to facilitate data collection.
Further, in order to reduce the load of the nano filter tank 3 and avoid blockage, the nano filter membrane performance testing device further comprises a filter 8, two ends of the filter 8 are respectively communicated with the pressure pump 2 and the nano filter tank 3 through a first pipeline 200, and before the test liquid enters the nano filter tank 3, the filter 8 is adopted to filter large granular impurities in the test liquid. The pressure sensor 4 is arranged between the nano-filtration tank 3 and the filter 8 to detect the working pressure of the nano-filtration tank 3.
Because of being equipped with filter 8 between force pump 2 and the nanofiltration pond 3, filter 8 can consume a part of pressure, in order to guarantee sufficient nanofiltration power, the pressure that force pump 2 provided is probably greater than the maximum pressure value that the nanofiltration membrane can bear at first, if after the test solution passes through filter 8, the pressure value that pressure sensor 4 feedback still is greater than the maximum pressure value that the nanofiltration membrane can bear, only hardly let the passageway pressure return to the normal value in the short time through the regulation of force pump 2, can cause excessive loss to the nanofiltration membrane, shorten life. Therefore, the nanofiltration membrane performance testing device further comprises a safety valve 9 and a safety pipeline 500, wherein one end of the safety valve 9 is communicated with the first storage tank 1 through the safety pipeline 500, and the other end of the safety valve 9 is communicated with the first pipeline 200 between the pressure pump 2 and the filter 8 through the safety pipeline 500. When the pressure value that the pressure sensor 4 feedbacks is greater than the biggest pressure value that the nanofiltration membrane can bear, then relief valve 9 opens, shunts test solution to first storage tank 1 through safety line 500 in, adjusts the pressure value of force pump 2 simultaneously to reduce the pressure of whole route, when pressure returns normal range, then closes relief valve 9.
Further, in order to keep the test solution at the preset temperature all the time, the nanofiltration membrane performance test device further comprises a cooler 10, wherein the cooler 10 is arranged on the second pipeline 300 and used for cooling the trapped fluid to the preset temperature so as to improve the accuracy of the test result.
Optionally, the nanofiltration membrane performance testing device further comprises a second temperature sensor 11, the second temperature sensor 11 is disposed on the second pipeline 300, the second temperature sensor 11 is connected to the control system 100, and the second temperature sensor 11 is disposed between the cooler 10 and the first storage tank 1, and is configured to detect a temperature of the retentate cooled by the cooler 10, and when a temperature fed back by the second temperature sensor 11 is higher than a preset temperature, a proper amount of cooling liquid needs to be added into the cooler 10, so as to ensure that the retentate can be cooled to the preset temperature.
Further, the nanofiltration membrane performance testing device further comprises a pressure gauge 12, wherein the pressure gauge 12 is installed on the second pipeline 300, and the pressure gauge 12 is arranged between the nanofiltration chamber 3 and the cooler 10 and used for detecting the pressure of trapped liquid.
The nanofiltration membrane performance testing device also comprises a pressure regulating valve 13, wherein the pressure regulating valve 13 is arranged on the second pipeline 300, the pressure regulating valve 13 is arranged between the pressure gauge 12 and the nanofiltration tank 3, and the pressure regulating valve can regulate the pressure of trapped liquid according to the pressure value reflected by the pressure gauge 12, so that the pressure of the trapped liquid tends to be stable.
The nanofiltration membrane performance testing device also comprises a flowmeter 14, wherein the flowmeter 14 is arranged on the second pipeline 300, the flowmeter 14 is arranged between the cooler 10 and the first storage tank 1 and is used for measuring the flow of trapped liquid, and the flowmeter 14, the pressure gauge 12 and the pressure regulating valve 13 jointly act to ensure that the pressure and the flow of the trapped liquid tend to be stable and the testing accuracy is improved.
Preferably, for carrying out real-time supervision to the liquid level of first storage tank 1, this receive filter membrane performance test device still includes teletransmission level gauge 15, and teletransmission level gauge 15 installs on first storage tank 1, and teletransmission level gauge 15 is connected with control system 100, and when the liquid level of first storage tank 1 that teletransmission level gauge 15 feedback was less than preset liquid level, then force pump 2 stop work to play the guard action to whole testing arrangement.
Optionally, in order to open and close the second pipeline 300 and the third pipeline 400, the nanofiltration membrane performance testing device further comprises two ball valves 16, one ball valve 16 is installed on the third pipeline 400, and the other ball valve is installed on the second pipeline 300 between the trapped fluid chamber and the pressure gauge 12, so as to open and close the loops on the paths of the permeate and the trapped fluid respectively.
The application provides a testing arrangement can be according to actual industry service environment (service pressure, temperature), pressure, the temperature of setting device. The liquid to be tested is further put into the first storage tank 1 according to the use purpose (determining the liquid to be tested), so that the practical industrial use environment is simulated, and the performance test is carried out on different nanofiltration membranes according to the use purpose. The performance parameter indexes of the nanofiltration membranes counted by the control system 100 are compared with the volume of the penetrating fluid seeped out of each square meter of the nanofiltration membrane in a certain time under the conditions of preset pressure and preset temperature, and the larger the volume is, the better the performance of the nanofiltration membrane is. It can be understood that the testing device is in a parameter adjusting stage when just working, and after a certain time, each parameter on the passage is kept stable, and then each nanofiltration membrane performance parameter is counted as a comparison standard, so that the experimental accuracy is improved.
The utility model provides a receive filter membrane capability test device can simulate out through installing pressure sensor 4 and first temperature sensor 5 on the device and measure the performance of receiving the filter membrane under pressure of predetermineeing and predetermineeing the temperature condition and good or bad to select out the filter membrane that receives that accords with actual industrial demand, and carry out data acquisition with control system 100 is automatic, make the more accurate automation of testing process.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a receive filter membrane capability test device which characterized in that includes:
a control system (100);
the first storage tank (1) is used for containing a test solution;
the pressure pump (2) is communicated with the first storage tank (1), and the pressure pump (2) is connected with the control system (100);
the nano filter tank (3) is communicated with the pressure pump (2), a nano filter membrane is contained in the nano filter tank (3) and is divided into a trapped liquid cavity and a permeated liquid cavity by the nano filter membrane, and the trapped liquid cavity is communicated with the first storage tank (1);
the pressure sensor (4) is arranged between the nano filter tank (3) and the pressure pump (2), and the pressure sensor (4) is connected with the control system (100);
the first temperature sensor (5) is arranged between the liquid trapping cavity and the first storage tank (1), and the first temperature sensor (5) is connected with the control system (100);
a second storage tank (6) communicated with the permeate cavity, wherein the second storage tank (6) is used for storing permeate seeped out by the nanofiltration membrane;
an electronic scale (7) on which the second storage tank (6) is placed, the electronic scale (7) being connected with the control system (100).
2. The nanofiltration membrane performance test device according to claim 1, further comprising a filter (8), wherein two ends of the filter (8) are respectively communicated with the pressure pump (2) and the nanofiltration chamber (3), and the pressure sensor (4) is arranged between the nanofiltration chamber (3) and the filter (8).
3. The nanofiltration membrane performance test device according to claim 2, further comprising a safety valve (9), wherein one end of the safety valve (9) is communicated with the first storage tank (1), and the other end of the safety valve is communicated with a pipeline between the pressure pump (2) and the filter (8).
4. The nanofiltration membrane performance test device according to claim 1, further comprising a cooler (10), wherein the cooler (10) is disposed between the retentate chamber and the first storage tank (1) and is configured to cool the retentate to a predetermined temperature.
5. The nanofiltration membrane performance test device according to claim 4, further comprising a second temperature sensor (11), wherein the second temperature sensor (11) is arranged between the cooler (10) and the first storage tank (1), and the second temperature sensor (11) is connected to the control system (100).
6. Nanofiltration membrane performance test device according to claim 4 or 5, further comprising a pressure gauge (12), wherein the pressure gauge (12) is arranged between the nanofiltration chamber (3) and the cooler (10).
7. The nanofiltration membrane performance test device according to claim 6, further comprising a pressure regulating valve (13), wherein the pressure regulating valve (13) is arranged between the pressure gauge (12) and the nanofiltration chamber (3).
8. Nanofiltration membrane performance testing apparatus according to claim 7, further comprising a flow meter (14), wherein the flow meter (14) is arranged between the cooler (10) and the first tank (1).
9. Nanofiltration membrane performance testing device according to claim 6, further comprising a ball valve (16), wherein the ball valve (16) is provided in two, one between the permeate chamber and the second tank (6), and the other between the retentate chamber and the pressure gauge (12).
10. The nanofiltration membrane performance test device according to claim 1, further comprising a remote liquid level meter (15), wherein the remote liquid level meter (15) is installed on the first storage tank (1), and the remote liquid level meter (15) is connected with the control system (100).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020116396.7U CN211602833U (en) | 2020-01-17 | 2020-01-17 | Receive filter membrane capability test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020116396.7U CN211602833U (en) | 2020-01-17 | 2020-01-17 | Receive filter membrane capability test device |
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| CN211602833U true CN211602833U (en) | 2020-09-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113024003A (en) * | 2021-03-17 | 2021-06-25 | 大连理工大学 | Integrated electric auxiliary micro-filtration, ultra-filtration and nanofiltration membrane performance comprehensive test platform |
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- 2020-01-17 CN CN202020116396.7U patent/CN211602833U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113024003A (en) * | 2021-03-17 | 2021-06-25 | 大连理工大学 | Integrated electric auxiliary micro-filtration, ultra-filtration and nanofiltration membrane performance comprehensive test platform |
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